/* roulang page: index */
:root {
            --bg-base: #0D0A12;
            --bg-card: #17121F;
            --bg-card-hover: #1E1728;
            --bd-subtle: rgba(255, 255, 255, 0.08);
            --bd-focus: rgba(236, 72, 153, 0.35);
            --brand-a: #7C3AED;
            --brand-b: #EC4899;
            --brand-gradient: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(124, 58, 237, 0.18) 0%, rgba(236, 72, 153, 0.18) 100%);
            --accent-warn: #F59E0B;
            --accent-success: #10B981;
            --accent-danger: #EF4444;
            --text-main: #F5F3F7;
            --text-muted: #A29DAA;
            --text-faint: #7A7485;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-default: 0 12px 30px rgba(124, 58, 237, 0.18);
            --shadow-hover: 0 20px 40px rgba(236, 72, 153, 0.25);
            --shadow-glow: 0 0 50px rgba(124, 58, 237, 0.22);
            --font-sans: "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 56px;
            --nav-height: 72px;
            --transition: all 0.25s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: var(--font-sans);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--brand-b);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        :focus-visible {
            outline: 2px solid var(--brand-b);
            outline-offset: 3px;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: var(--section-pad) 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-tag i {
            font-size: 12px;
            color: var(--brand-b);
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 48px;
            max-width: 720px;
        }

        /* ========== Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(13, 10, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--bd-subtle);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
        }

        .nav-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-logo span {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-chips {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
        }

        .nav-chips::-webkit-scrollbar {
            display: none;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .nav-chip:hover {
            color: var(--text-main);
            border-color: rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-chip.active {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 16px rgba(124, 58, 237, 0.35);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            cursor: pointer;
            border: none;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(124, 58, 237, 0.3);
        }

        .nav-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .nav-mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--bd-subtle);
            border-radius: 10px;
            padding: 8px 12px;
            color: var(--text-main);
            font-size: 18px;
        }

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(180deg, rgba(13, 10, 18, 0.88) 0%, rgba(13, 10, 18, 0.95) 100%), url('/assets/images/backpic/back-1.webp') center top / cover no-repeat;
            min-height: 620px;
            display: flex;
            align-items: flex-start;
            padding: 72px 0 48px;
            border-bottom: 1px solid var(--bd-subtle);
            overflow: hidden;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--brand-gradient);
            z-index: 1;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-left {
            padding-top: 20px;
        }

        .hero-badge-line {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.35);
            color: var(--accent-warn);
            font-size: 12px;
            font-weight: 500;
        }

        .hero-badge.success-badge {
            background: rgba(16, 185, 129, 0.15);
            border-color: rgba(16, 185, 129, 0.35);
            color: var(--accent-success);
        }

        .hero-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-main);
            letter-spacing: -0.02em;
            margin-bottom: 18px;
        }

        .hero-title .gradient-text {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.35);
            text-decoration: none;
        }

        .btn-hero-primary:hover {
            color: #fff;
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-hero-secondary:hover {
            border-color: var(--brand-b);
            color: var(--text-main);
            background: rgba(236, 72, 153, 0.08);
        }

        .hero-coupon-wall {
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: stretch;
        }

        .coupon-main {
            background: var(--bg-card);
            border: 1px solid rgba(124, 58, 237, 0.35);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-default);
        }

        .coupon-main::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--brand-gradient);
        }

        .coupon-main::after {
            content: '';
            position: absolute;
            bottom: -30px;
            right: -30px;
            width: 120px;
            height: 120px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .coupon-main-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 500;
            color: var(--brand-b);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .coupon-main-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .coupon-main-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .coupon-main-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .coupon-expire {
            font-size: 12px;
            color: var(--text-faint);
        }

        .btn-coupon-claim {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-coupon-claim:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: var(--shadow-hover);
        }

        .coupon-mini-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .coupon-mini {
            flex: 1;
            min-width: 140px;
            background: rgba(23, 18, 31, 0.8);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            text-align: center;
            transition: var(--transition);
            cursor: pointer;
        }

        .coupon-mini:hover {
            border-color: rgba(236, 72, 153, 0.4);
            box-shadow: var(--shadow-default);
            transform: translateY(-2px);
        }

        .coupon-mini-value {
            font-size: 20px;
            font-weight: 700;
            color: var(--brand-b);
            margin-bottom: 4px;
        }

        .coupon-mini-label {
            font-size: 12px;
            color: var(--text-muted);
        }

        .hero-kpi-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 48px;
        }

        .hero-kpi-card {
            background: rgba(23, 18, 31, 0.75);
            border: 1px solid rgba(124, 58, 237, 0.25);
            border-radius: var(--radius-lg);
            padding: 18px 16px;
            text-align: center;
            transition: var(--transition);
            backdrop-filter: blur(8px);
        }

        .hero-kpi-card:hover {
            border-color: rgba(236, 72, 153, 0.4);
            box-shadow: var(--shadow-default);
        }

        .hero-kpi-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.01em;
            line-height: 1.2;
        }

        .hero-kpi-number .plus {
            color: var(--accent-success);
            font-size: 18px;
        }

        .hero-kpi-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        .hero-progress-wrap {
            margin-top: 40px;
            border-top: 1px solid var(--bd-subtle);
            padding-top: 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-progress-nodes {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            min-width: 200px;
        }

        .hero-progress-node {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 2px solid var(--text-faint);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 8px;
            color: transparent;
            transition: var(--transition);
        }

        .hero-progress-node.done {
            background: var(--brand-gradient);
            border-color: transparent;
            color: #fff;
        }

        .hero-progress-node.current {
            border-color: var(--brand-b);
            background: rgba(236, 72, 153, 0.2);
            color: var(--brand-b);
        }

        .hero-progress-line {
            flex: 1;
            height: 2px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 1px;
            min-width: 24px;
        }

        .hero-progress-line.done {
            background: var(--brand-gradient);
        }

        .hero-progress-text {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        /* ========== Selling Points ========== */
        .selling-points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .sp-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .sp-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--brand-gradient);
            opacity: 0;
            transition: var(--transition);
        }

        .sp-card:hover {
            border-color: rgba(124, 58, 237, 0.3);
            box-shadow: var(--shadow-default);
            transform: translateY(-4px);
        }

        .sp-card:hover::before {
            opacity: 1;
        }

        .sp-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: var(--brand-gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--brand-b);
            margin-bottom: 18px;
        }

        .sp-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .sp-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ========== Service Matrix ========== */
        .service-matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .service-card:hover {
            border-color: rgba(236, 72, 153, 0.3);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            background: var(--bg-card-hover);
        }

        .service-card.double-width {
            grid-column: span 2;
        }

        .service-card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: rgba(23, 18, 31, 0.6);
        }

        .service-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .service-card:hover .service-card-image img {
            transform: scale(1.05);
        }

        .service-card-badge-top {
            position: absolute;
            top: 12px;
            left: 12px;
            display: flex;
            gap: 8px;
            z-index: 2;
        }

        .service-chip {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: rgba(13, 10, 18, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 11px;
            color: var(--text-main);
            backdrop-filter: blur(6px);
            font-weight: 500;
        }

        .service-chip.chip-highlight {
            background: var(--brand-gradient);
            border-color: transparent;
            color: #fff;
        }

        .service-chip.chip-success {
            background: rgba(16, 185, 129, 0.2);
            border-color: rgba(16, 185, 129, 0.4);
            color: var(--accent-success);
        }

        .service-card-body {
            padding: 20px 20px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .service-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .service-card-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .service-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 12px;
            font-size: 12px;
            color: var(--text-faint);
        }

        .service-card-meta i {
            font-size: 11px;
            color: var(--brand-b);
        }

        /* ========== Scenarios ========== */
        .scenarios-block {
            background: rgba(23, 18, 31, 0.55);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
        }

        .scenario-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            align-items: center;
        }

        .scenario-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: rgba(13, 10, 18, 0.6);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            transition: var(--transition);
        }

        .scenario-item:hover {
            border-color: rgba(124, 58, 237, 0.3);
            box-shadow: var(--shadow-default);
        }

        .scenario-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--brand-gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--brand-b);
            flex-shrink: 0;
        }

        .scenario-text h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .scenario-text p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== Comparison ========== */
        .comparison-wrap {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .compare-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: var(--transition);
        }

        .compare-card.better {
            border-color: rgba(16, 185, 129, 0.4);
            background: rgba(16, 185, 129, 0.05);
        }

        .compare-card.worse {
            border-color: rgba(239, 68, 68, 0.35);
            background: rgba(239, 68, 68, 0.04);
        }

        .compare-card-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }

        .compare-card-header .compare-label {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
        }

        .compare-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 600;
        }

        .compare-badge.positive {
            background: rgba(16, 185, 129, 0.18);
            color: var(--accent-success);
        }

        .compare-badge.negative {
            background: rgba(239, 68, 68, 0.18);
            color: var(--accent-danger);
        }

        .compare-metric {
            margin-bottom: 18px;
        }

        .compare-metric-label {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .compare-bar {
            height: 8px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 4px;
            overflow: hidden;
        }

        .compare-bar-fill {
            height: 100%;
            border-radius: 4px;
            background: var(--brand-gradient);
            transition: width 0.8s ease;
        }

        .compare-bar-fill.green {
            background: linear-gradient(135deg, #10B981, #34D399);
        }

        .compare-bar-fill.red {
            background: linear-gradient(135deg, #EF4444, #F87171);
        }

        .compare-trend {
            font-size: 13px;
            font-weight: 600;
        }

        .compare-trend.up {
            color: var(--accent-success);
        }

        .compare-trend.down {
            color: var(--accent-danger);
        }

        .vs-badge {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
            align-self: center;
            flex-shrink: 0;
        }

        /* ========== Testimonials & Partners ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            transition: var(--transition);
        }

        .testimonial-card:hover {
            border-color: rgba(236, 72, 153, 0.25);
            box-shadow: var(--shadow-default);
        }

        .testimonial-stars {
            display: flex;
            gap: 3px;
            margin-bottom: 12px;
            color: var(--accent-warn);
            font-size: 13px;
        }

        .testimonial-text {
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .testimonial-author {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .testimonial-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--brand-b);
            flex-shrink: 0;
        }

        .partners-block {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--bd-subtle);
        }

        .partners-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 20px;
        }

        .partners-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .partner-tag {
            background: rgba(23, 18, 31, 0.6);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md);
            padding: 16px 14px;
            text-align: center;
            transition: var(--transition);
        }

        .partner-tag:hover {
            border-color: rgba(124, 58, 237, 0.35);
            box-shadow: var(--shadow-default);
        }

        .partner-tag-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .partner-tag-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== News ========== */
        .news-block {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 32px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            border-bottom: 1px solid var(--bd-subtle);
            padding: 18px 8px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
        }

        .news-item:hover {
            padding-left: 16px;
            background: rgba(23, 18, 31, 0.4);
            border-radius: 8px;
        }

        .news-item-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
        }

        .news-item-excerpt {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .news-item-meta {
            font-size: 12px;
            color: var(--text-faint);
        }

        .news-sidebar {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            height: fit-content;
        }

        .news-sidebar-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .news-sidebar-item {
            display: flex;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--bd-subtle);
            font-size: 13px;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
        }

        .news-sidebar-item:last-child {
            border-bottom: none;
        }

        .news-sidebar-item:hover {
            color: var(--text-main);
        }

        .news-sidebar-item i {
            font-size: 10px;
            color: var(--brand-b);
            margin-top: 5px;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(124, 58, 237, 0.25);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }

        .faq-question .faq-num {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--brand-gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            color: var(--brand-b);
            flex-shrink: 0;
        }

        .faq-question .faq-icon {
            margin-left: auto;
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-b);
        }

        .faq-answer {
            padding: 0 20px 18px 62px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* ========== Brand Story ========== */
        .brand-story-band {
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
        }

        .brand-story-band::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.3) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .brand-story-text {
            font-size: 15px;
            color: var(--text-main);
            line-height: 2;
            max-width: 800px;
        }

        /* ========== CTA Form ========== */
        .cta-form-section {
            background: rgba(23, 18, 31, 0.6);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
        }

        .cta-form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cta-form-left h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .cta-form-left p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }

        .cta-form-card {
            background: var(--bg-card);
            border: 1px solid rgba(124, 58, 237, 0.3);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-glow);
        }

        .cta-form-card .form-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .cta-form-card .form-control {
            background: rgba(13, 10, 18, 0.7);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 14px;
            color: var(--text-main);
            transition: var(--transition);
            margin-bottom: 14px;
        }

        .cta-form-card .form-control:focus {
            border-color: var(--brand-b);
            box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.15);
            background: rgba(13, 10, 18, 0.85);
            color: var(--text-main);
            outline: none;
        }

        .cta-form-card .form-control::placeholder {
            color: var(--text-faint);
        }

        .btn-form-submit {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 28px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 6px 18px rgba(124, 58, 237, 0.3);
            width: 100%;
            justify-content: center;
        }

        .btn-form-submit:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: var(--shadow-hover);
        }

        .form-helper-text {
            font-size: 12px;
            color: var(--text-faint);
            text-align: center;
            margin-top: 10px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: rgba(13, 10, 18, 0.9);
            border-top: 1px solid var(--bd-subtle);
            padding: 48px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .nav-logo {
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--brand-b);
        }

        .footer-bottom {
            border-top: 1px solid var(--bd-subtle);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-faint);
        }

        .footer-bottom a {
            color: var(--text-muted);
            font-size: 12px;
        }

        .footer-bottom a:hover {
            color: var(--brand-b);
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ========== Responsive ========== */
        @media (max-width: 991px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-kpi-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .selling-points-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-card.double-width {
                grid-column: span 2;
            }
            .scenario-row {
                grid-template-columns: 1fr;
            }
            .comparison-wrap {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .vs-badge {
                align-self: center;
                margin: 8px auto;
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-block {
                grid-template-columns: 1fr;
            }
            .cta-form-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-pad {
                padding: 64px 0;
            }
        }

        @media (max-width: 767px) {
            .nav-chips {
                display: none;
            }
            .nav-mobile-toggle {
                display: inline-flex;
            }
            .nav-cta {
                display: none;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-kpi-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .hero-kpi-number {
                font-size: 22px;
            }
            .selling-points-grid {
                grid-template-columns: 1fr;
            }
            .service-matrix-grid {
                grid-template-columns: 1fr;
            }
            .service-card.double-width {
                grid-column: span 1;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .partners-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-pad {
                padding: var(--section-pad-mobile) 0;
            }
            .section-title {
                font-size: 24px;
            }
            .brand-story-band,
            .scenarios-block,
            .cta-form-section {
                padding: 28px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .coupon-main {
                padding: 20px 16px;
            }
            .coupon-main-title {
                font-size: 18px;
            }
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-kpi-row {
                grid-template-columns: 1fr;
            }
            .partners-grid {
                grid-template-columns: 1fr;
            }
            .coupon-mini-row {
                flex-direction: column;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --bg-base: #0D0A12;
            --bg-card: #17121F;
            --bg-card-hover: #1E1728;
            --bd-subtle: rgba(255, 255, 255, 0.08);
            --bd-focus: rgba(236, 72, 153, 0.35);
            --brand-a: #7C3AED;
            --brand-b: #EC4899;
            --brand-gradient: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(124, 58, 237, 0.18) 0%, rgba(236, 72, 153, 0.18) 100%);
            --accent-warn: #F59E0B;
            --accent-success: #10B981;
            --accent-danger: #EF4444;
            --text-main: #F5F3F7;
            --text-muted: #A29DAA;
            --text-faint: #7A7485;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-default: 0 12px 30px rgba(124, 58, 237, 0.18);
            --shadow-hover: 0 20px 40px rgba(236, 72, 153, 0.25);
            --shadow-glow: 0 0 50px rgba(124, 58, 237, 0.22);
            --font-sans: "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 56px;
            --nav-height: 72px;
            --transition: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: var(--font-sans);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--brand-b);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding: var(--section-pad) 0;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .section-tag i {
            font-size: 12px;
            color: var(--brand-b);
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 48px;
            max-width: 720px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(13, 10, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--bd-subtle);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
        }
        .nav-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-logo span {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-chips {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
        }
        .nav-chips::-webkit-scrollbar {
            display: none;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .nav-chip:hover {
            color: var(--text-main);
            border-color: rgba(236, 72, 153, 0.35);
            background: var(--brand-gradient-soft);
        }
        .nav-chip.active {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--shadow-default);
            text-decoration: none;
        }
        .nav-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .nav-cta:focus,
        .btn-brand:focus,
        .btn-outline-brand:focus,
        .nav-chip:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.4);
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--shadow-default);
            text-decoration: none;
        }
        .btn-brand:hover {
            color: #fff;
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-outline-brand:hover {
            color: var(--text-main);
            border-color: var(--brand-b);
            background: rgba(236, 72, 153, 0.08);
            transform: translateY(-2px);
        }
        .hero-banner {
            position: relative;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 10, 18, 0.82) 0%, rgba(13, 10, 18, 0.75) 50%, rgba(13, 10, 18, 0.95) 100%);
            z-index: 1;
        }
        .hero-banner .container-custom {
            position: relative;
            z-index: 2;
            padding-top: 60px;
            padding-bottom: 60px;
        }
        .hero-banner .h1-hero {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            color: #fff;
        }
        .hero-banner .h1-hero strong {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-banner .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 620px;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .hero-banner .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .breadcrumb-wrap {
            padding: 20px 0 0;
            font-size: 13px;
            color: var(--text-faint);
        }
        .breadcrumb-wrap a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb-wrap a:hover {
            color: var(--brand-b);
        }
        .breadcrumb-wrap span {
            margin: 0 8px;
            color: var(--text-faint);
        }
        .breadcrumb-wrap .current {
            color: var(--text-main);
            font-weight: 500;
        }
        .matrix-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .matrix-card:hover {
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(236, 72, 153, 0.25);
        }
        .matrix-card .card-cover {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-card-hover);
        }
        .matrix-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: all 0.5s ease;
        }
        .matrix-card:hover .card-cover img {
            transform: scale(1.05);
        }
        .matrix-card .card-cover .cover-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 10, 18, 0.1) 0%, rgba(13, 10, 18, 0.6) 100%);
        }
        .matrix-card .card-chips {
            position: absolute;
            top: 12px;
            left: 12px;
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            z-index: 2;
        }
        .matrix-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .matrix-card .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }
        .matrix-card .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .matrix-card .card-footer-info {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-faint);
        }
        .matrix-card .card-footer-info .arrow-link {
            font-size: 14px;
            color: var(--brand-b);
            transition: var(--transition);
        }
        .matrix-card:hover .card-footer-info .arrow-link {
            transform: translateX(4px);
        }
        .badge-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.3px;
            background: rgba(124, 58, 237, 0.2);
            color: #C4B5FD;
            border: 1px solid rgba(124, 58, 237, 0.3);
            white-space: nowrap;
        }
        .badge-chip.warn {
            background: rgba(245, 158, 11, 0.15);
            color: #FCD34D;
            border-color: rgba(245, 158, 11, 0.3);
        }
        .badge-chip.success {
            background: rgba(16, 185, 129, 0.15);
            color: #6EE7B7;
            border-color: rgba(16, 185, 129, 0.3);
        }
        .badge-chip.danger {
            background: rgba(239, 68, 68, 0.15);
            color: #FCA5A5;
            border-color: rgba(239, 68, 68, 0.3);
        }
        .badge-chip.info {
            background: rgba(59, 130, 246, 0.15);
            color: #93C5FD;
            border-color: rgba(59, 130, 246, 0.3);
        }
        .badge-data {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            background: var(--brand-gradient-soft);
            color: var(--text-main);
            border: 1px solid rgba(236, 72, 153, 0.25);
            white-space: nowrap;
        }
        .badge-data i {
            font-size: 10px;
            color: var(--brand-b);
        }
        .process-step {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            height: 100%;
            transition: var(--transition);
            position: relative;
        }
        .process-step:hover {
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-default);
            transform: translateY(-4px);
        }
        .process-step .step-number {
            font-size: 42px;
            font-weight: 700;
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
            margin-bottom: 12px;
        }
        .process-step .step-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .process-step .step-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-main);
            font-weight: 600;
            font-size: 15px;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            transition: var(--transition);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-card-hover);
            color: var(--text-main);
            box-shadow: none;
        }
        .faq-accordion .accordion-button::after {
            filter: invert(1);
            opacity: 0.6;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.3);
            border: none;
        }
        .faq-accordion .accordion-body {
            background: var(--bg-card);
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
            padding: 8px 22px 20px;
        }
        .faq-accordion .faq-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--brand-b);
            font-size: 13px;
            font-weight: 700;
            margin-right: 12px;
            flex-shrink: 0;
        }
        .cta-section {
            background: var(--bg-card);
            border: 1px solid rgba(124, 58, 237, 0.25);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            margin-bottom: 60px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--brand-gradient-soft);
            opacity: 0.4;
            z-index: 0;
            pointer-events: none;
        }
        .cta-section > * {
            position: relative;
            z-index: 1;
        }
        .cta-section .cta-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .cta-section .cta-desc {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 24px;
            line-height: 1.8;
        }
        .form-control-dark {
            background: rgba(13, 10, 18, 0.7);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-sm);
            color: var(--text-main);
            padding: 12px 16px;
            font-size: 14px;
            transition: var(--transition);
        }
        .form-control-dark:focus {
            background: rgba(13, 10, 18, 0.85);
            border-color: var(--brand-b);
            box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.2);
            color: var(--text-main);
            outline: none;
        }
        .form-control-dark::placeholder {
            color: var(--text-faint);
        }
        .site-footer {
            background: #0A0710;
            border-top: 1px solid var(--bd-subtle);
            padding: 56px 0 28px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-faint);
            line-height: 1.8;
            margin-top: 16px;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--brand-b);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid var(--bd-subtle);
            font-size: 12px;
            color: var(--text-faint);
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom-links a {
            color: var(--text-faint);
            font-size: 12px;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--brand-b);
        }
        @media (max-width: 991px) {
            .site-header {
                height: auto;
                padding: 10px 0;
            }
            .site-header .container-custom {
                flex-wrap: wrap;
                gap: 10px;
            }
            .nav-chips {
                order: 3;
                width: 100%;
            }
            .nav-cta {
                margin-left: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .hero-banner .h1-hero {
                font-size: 32px;
            }
            .section-title {
                font-size: 26px;
            }
        }
        @media (max-width: 576px) {
            :root {
                --section-pad: 56px;
            }
            .section-pad {
                padding: 56px 0;
            }
            .hero-banner {
                min-height: 340px;
            }
            .hero-banner .h1-hero {
                font-size: 28px;
            }
            .hero-banner .hero-sub {
                font-size: 15px;
            }
            .hero-banner .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-banner .hero-actions .btn-brand,
            .hero-banner .hero-actions .btn-outline-brand {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 22px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section .cta-title {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }
            .nav-chip {
                padding: 6px 14px;
                font-size: 12px;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 12px;
            }
            .matrix-card .card-title {
                font-size: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-base: #0D0A12;
            --bg-card: #17121F;
            --bg-card-hover: #1E1728;
            --bd-subtle: rgba(255, 255, 255, 0.08);
            --bd-focus: rgba(236, 72, 153, 0.35);
            --brand-a: #7C3AED;
            --brand-b: #EC4899;
            --brand-gradient: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(124, 58, 237, 0.18) 0%, rgba(236, 72, 153, 0.18) 100%);
            --accent-warn: #F59E0B;
            --accent-success: #10B981;
            --accent-danger: #EF4444;
            --text-main: #F5F3F7;
            --text-muted: #A29DAA;
            --text-faint: #7A7485;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-default: 0 12px 30px rgba(124, 58, 237, 0.18);
            --shadow-hover: 0 20px 40px rgba(236, 72, 153, 0.25);
            --shadow-glow: 0 0 50px rgba(124, 58, 237, 0.22);
            --font-sans: "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 56px;
            --nav-height: 72px;
            --transition: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: var(--font-sans);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--brand-b);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
        }
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding: var(--section-pad) 0;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .section-tag i {
            font-size: 12px;
            color: var(--brand-b);
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 48px;
            max-width: 720px;
        }

        /* ========== Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(13, 10, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--bd-subtle);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-logo span:last-child {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-chips {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
        }
        .nav-chips::-webkit-scrollbar {
            display: none;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-chip:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--bd-subtle);
        }
        .nav-chip.active {
            color: #fff;
            background: var(--brand-gradient);
            border-color: transparent;
            box-shadow: 0 6px 16px rgba(124, 58, 237, 0.35);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
            text-decoration: none;
        }
        .nav-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .nav-cta:focus-visible {
            outline: 2px solid var(--bd-focus);
            outline-offset: 2px;
        }

        /* ========== Hero Banner ========== */
        .category-hero {
            position: relative;
            padding: 80px 0 64px;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 10, 18, 0.92) 30%, rgba(13, 10, 18, 0.65) 70%, rgba(124, 58, 237, 0.3) 100%);
        }
        .category-hero .container-custom {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            max-width: 680px;
        }
        .category-hero .hero-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 620px;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-brand:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: transparent;
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.2);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-ghost:hover {
            color: var(--text-main);
            border-color: var(--brand-b);
            background: rgba(236, 72, 153, 0.1);
        }
        .btn-brand:focus-visible,
        .btn-ghost:focus-visible {
            outline: 2px solid var(--bd-focus);
            outline-offset: 3px;
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-bar {
            padding: 20px 0;
            border-bottom: 1px solid var(--bd-subtle);
            background: rgba(23, 18, 31, 0.6);
        }
        .breadcrumb-bar .container-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }
        .breadcrumb-bar a {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .breadcrumb-bar a:hover {
            color: var(--brand-b);
        }
        .breadcrumb-bar .sep {
            color: var(--text-faint);
        }
        .breadcrumb-bar .current {
            color: var(--text-main);
            font-weight: 500;
        }

        /* ========== Quick Metrics Strip ========== */
        .metrics-strip {
            padding: 40px 0;
            background: var(--bg-card);
            border-bottom: 1px solid var(--bd-subtle);
        }
        .metrics-strip .metrics-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .metric-mini {
            background: var(--bg-base);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            transition: var(--transition);
        }
        .metric-mini:hover {
            border-color: rgba(124, 58, 237, 0.4);
            box-shadow: var(--shadow-default);
        }
        .metric-mini .metric-num {
            font-size: 28px;
            font-weight: 700;
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .metric-mini .metric-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ========== Cards Grid ========== */
        .cards-grid-section {
            padding: var(--section-pad) 0;
        }
        .dashboard-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .dashboard-card:hover {
            border-color: rgba(236, 72, 153, 0.3);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            background: var(--bg-card-hover);
        }
        .dashboard-card .card-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            flex-shrink: 0;
        }
        .dashboard-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .dashboard-card:hover .card-cover img {
            transform: scale(1.05);
        }
        .dashboard-card .card-badges {
            position: absolute;
            top: 14px;
            left: 14px;
            display: flex;
            gap: 6px;
            z-index: 2;
        }
        .dashboard-card .card-body-content {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .dashboard-card .card-category-chip {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            font-size: 12px;
            font-weight: 500;
            color: var(--text-main);
            width: fit-content;
            margin-bottom: 12px;
        }
        .dashboard-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .dashboard-card .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .badge-soft {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent-warn);
            border: 1px solid rgba(245, 158, 11, 0.3);
        }
        .badge-soft.green {
            background: rgba(16, 185, 129, 0.15);
            color: var(--accent-success);
            border-color: rgba(16, 185, 129, 0.3);
        }
        .badge-soft.pink {
            background: rgba(236, 72, 153, 0.15);
            color: var(--brand-b);
            border-color: rgba(236, 72, 153, 0.3);
        }
        .badge-soft.purple {
            background: rgba(124, 58, 237, 0.15);
            color: #a78bfa;
            border-color: rgba(124, 58, 237, 0.3);
        }

        /* ========== Feature Showcase ========== */
        .feature-showcase {
            padding: var(--section-pad) 0;
            background: var(--bg-card);
            border-top: 1px solid var(--bd-subtle);
            border-bottom: 1px solid var(--bd-subtle);
        }
        .feature-showcase .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .feature-showcase .feature-visual {
            background: var(--brand-gradient-soft);
            border-radius: var(--radius-lg);
            padding: 40px;
            border: 1px solid var(--bd-subtle);
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .feature-showcase .feature-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 30% 40%, rgba(124, 58, 237, 0.3) 0%, transparent 60%);
            pointer-events: none;
        }
        .feature-showcase .feature-visual .visual-inner {
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .feature-showcase .feature-visual .visual-icon {
            width: 72px;
            height: 72px;
            border-radius: 20px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            color: #fff;
            margin: 0 auto 20px;
            box-shadow: var(--shadow-default);
        }
        .feature-showcase .feature-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 20px;
        }
        .feature-list-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 18px;
            background: var(--bg-base);
            border-radius: var(--radius-md);
            border: 1px solid var(--bd-subtle);
            transition: var(--transition);
        }
        .feature-list-item:hover {
            border-color: rgba(124, 58, 237, 0.3);
        }
        .feature-list-item i {
            font-size: 16px;
            color: var(--brand-b);
            margin-top: 3px;
            flex-shrink: 0;
        }
        .feature-list-item .fli-content {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .feature-list-item .fli-content strong {
            color: var(--text-main);
            display: block;
            font-size: 15px;
            margin-bottom: 2px;
        }

        /* ========== Process Steps ========== */
        .process-steps {
            padding: var(--section-pad) 0;
        }
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            border-color: rgba(236, 72, 153, 0.3);
            box-shadow: var(--shadow-default);
            transform: translateY(-3px);
        }
        .step-card .step-num {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin: 0 auto 16px;
        }
        .step-card .step-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .step-card .step-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--section-pad) 0;
            background: var(--bg-card);
            border-top: 1px solid var(--bd-subtle);
            border-bottom: 1px solid var(--bd-subtle);
        }
        .faq-list {
            max-width: 840px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-base);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(124, 58, 237, 0.3);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            transition: var(--transition);
            user-select: none;
        }
        .faq-item .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-item .faq-q-left {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            flex: 1;
        }
        .faq-item .faq-q-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--brand-b);
            flex-shrink: 0;
            min-width: 28px;
        }
        .faq-item .faq-q-text {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.5;
        }
        .faq-item .faq-icon {
            font-size: 16px;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-b);
        }
        .faq-item .faq-answer {
            padding: 0 22px 20px 62px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            padding: var(--section-pad) 0;
        }
        .cta-card {
            background: var(--bg-card);
            border: 1px solid rgba(124, 58, 237, 0.3);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            box-shadow: var(--shadow-glow);
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 70% 30%, rgba(236, 72, 153, 0.12) 0%, transparent 50%);
            pointer-events: none;
        }
        .cta-card .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .cta-card .cta-left h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .cta-card .cta-left p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .cta-form .form-control {
            background: rgba(13, 10, 18, 0.7);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-sm);
            color: var(--text-main);
            padding: 12px 16px;
            font-size: 14px;
            transition: var(--transition);
        }
        .cta-form .form-control:focus {
            border-color: var(--brand-b);
            box-shadow: 0 0 0 3px var(--bd-focus);
            background: rgba(13, 10, 18, 0.9);
            color: var(--text-main);
            outline: none;
        }
        .cta-form .form-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 6px;
            font-weight: 500;
        }
        .cta-form .btn-submit {
            width: 100%;
            padding: 13px 24px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .cta-form .btn-submit:hover {
            filter: brightness(1.1);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .cta-form .btn-submit:focus-visible {
            outline: 2px solid var(--bd-focus);
            outline-offset: 3px;
        }
        .cta-form .form-hint {
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 10px;
            text-align: center;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0A0810;
            border-top: 1px solid var(--bd-subtle);
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-top: 16px;
            max-width: 360px;
            margin-bottom: 0;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--brand-b);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            border-top: 1px solid var(--bd-subtle);
            font-size: 13px;
            color: var(--text-faint);
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom-links a {
            font-size: 13px;
            color: var(--text-faint);
            transition: var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--brand-b);
        }

        /* ========== Responsive ========== */
        @media (max-width: 991px) {
            :root {
                --section-pad: 72px;
            }
            .metrics-strip .metrics-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-showcase .feature-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-card .cta-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 767px) {
            :root {
                --section-pad: 56px;
                --nav-height: 64px;
            }
            .site-header .container-custom {
                flex-wrap: wrap;
                gap: 10px;
                padding-top: 8px;
                padding-bottom: 8px;
            }
            .site-header {
                height: auto;
                min-height: var(--nav-height);
                padding: 8px 0;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 14px;
                border-radius: 8px;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .nav-chips {
                width: 100%;
                order: 3;
                padding-bottom: 4px;
            }
            .nav-chip {
                padding: 6px 14px;
                font-size: 13px;
            }
            .category-hero {
                padding: 56px 0 48px;
                min-height: 340px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero .hero-subtitle {
                font-size: 15px;
            }
            .breadcrumb-bar .container-custom {
                font-size: 12px;
            }
            .section-title {
                font-size: 24px;
            }
            .section-desc {
                font-size: 14px;
            }
            .metrics-strip .metrics-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .metric-mini {
                padding: 14px 12px;
            }
            .metric-mini .metric-num {
                font-size: 22px;
            }
            .steps-row {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .faq-item .faq-question {
                padding: 14px 16px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 16px 50px;
            }
            .cta-card {
                padding: 32px 20px;
            }
            .cta-card .cta-left h3 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-bottom-links {
                justify-content: center;
            }
        }
        @media (max-width: 575px) {
            .metrics-strip .metrics-row {
                grid-template-columns: 1fr;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .hero-actions {
                flex-direction: column;
                gap: 8px;
            }
            .btn-brand,
            .btn-ghost {
                width: 100%;
                justify-content: center;
            }
            .dashboard-card .card-body-content {
                padding: 16px;
            }
            .dashboard-card .card-title {
                font-size: 15px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-base: #0D0A12;
            --bg-card: #17121F;
            --bg-card-hover: #1E1728;
            --bd-subtle: rgba(255, 255, 255, 0.08);
            --bd-focus: rgba(236, 72, 153, 0.35);
            --brand-a: #7C3AED;
            --brand-b: #EC4899;
            --brand-gradient: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(124, 58, 237, 0.18) 0%, rgba(236, 72, 153, 0.18) 100%);
            --accent-warn: #F59E0B;
            --accent-success: #10B981;
            --accent-danger: #EF4444;
            --text-main: #F5F3F7;
            --text-muted: #A29DAA;
            --text-faint: #7A7485;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-default: 0 12px 30px rgba(124, 58, 237, 0.18);
            --shadow-hover: 0 20px 40px rgba(236, 72, 153, 0.25);
            --shadow-glow: 0 0 50px rgba(124, 58, 237, 0.22);
            --font-sans: "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 56px;
            --nav-height: 72px;
            --transition: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: var(--font-sans);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--brand-b);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: var(--section-pad) 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-tag i {
            font-size: 12px;
            color: var(--brand-b);
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 48px;
            max-width: 720px;
        }

        /* ========== Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(13, 10, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--bd-subtle);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
        }

        .nav-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-logo span {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-chips {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
        }

        .nav-chips::-webkit-scrollbar {
            display: none;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .nav-chip:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--bd-subtle);
        }

        .nav-chip.active {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            font-weight: 600;
            box-shadow: 0 6px 18px rgba(124, 58, 237, 0.35);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            box-shadow: 0 8px 22px rgba(124, 58, 237, 0.3);
        }

        .nav-cta:hover {
            color: #fff;
            box-shadow: 0 12px 30px rgba(236, 72, 153, 0.4);
            transform: translateY(-2px);
        }

        /* ========== Hero ========== */
        .hero-compare {
            position: relative;
            background: var(--bg-base);
            padding: 64px 0 56px;
            overflow: hidden;
        }

        .hero-compare::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.16;
            pointer-events: none;
        }

        .hero-compare::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 10, 18, 0.55) 0%, var(--bg-base) 88%);
            pointer-events: none;
        }

        .hero-compare .container-custom {
            position: relative;
            z-index: 2;
        }

        .hero-compare-top {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
        }

        .hero-compare-title-wrap {
            flex: 1;
            min-width: 300px;
        }

        .hero-compare h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
            color: var(--text-main);
        }

        .hero-compare h1 .gradient-text {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-compare-sub {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 620px;
            margin-bottom: 0;
        }

        .hero-compare-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            align-items: center;
        }

        .btn-primary-gradient {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            box-shadow: 0 8px 22px rgba(124, 58, 237, 0.3);
        }

        .btn-primary-gradient:hover {
            color: #fff;
            box-shadow: 0 14px 34px rgba(236, 72, 153, 0.42);
            transform: translateY(-2px);
        }

        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-pill);
            background: transparent;
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.25);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-outline-light-custom:hover {
            color: var(--text-main);
            border-color: var(--brand-b);
            background: rgba(236, 72, 153, 0.08);
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-compare {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-faint);
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .breadcrumb-compare a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }

        .breadcrumb-compare a:hover {
            color: var(--brand-b);
        }

        .breadcrumb-compare .sep {
            color: var(--text-faint);
            font-size: 11px;
        }

        .breadcrumb-compare .current {
            color: var(--text-main);
            font-weight: 500;
        }

        /* ========== Compare Plans ========== */
        .compare-plans {
            display: grid;
            grid-template-columns: 1fr 1.2fr 1fr;
            gap: 20px;
            align-items: stretch;
            margin-bottom: 40px;
        }

        .plan-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: var(--transition);
            position: relative;
        }

        .plan-card:hover {
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-default);
            transform: translateY(-4px);
        }

        .plan-card.featured {
            border: 2px solid transparent;
            border-image: var(--brand-gradient) 1;
            border-radius: var(--radius-lg);
            background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
                var(--brand-gradient) border-box;
            box-shadow: var(--shadow-glow);
            padding: 32px 28px;
            position: relative;
            z-index: 1;
        }

        .plan-card.featured::after {
            content: '推荐档';
            position: absolute;
            top: -14px;
            right: 24px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.5px;
        }

        .plan-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .plan-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0;
        }

        .plan-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
        }

        .plan-badge.hot {
            background: rgba(245, 158, 11, 0.15);
            border-color: rgba(245, 158, 11, 0.35);
            color: var(--accent-warn);
        }

        .plan-badge.success {
            background: rgba(16, 185, 129, 0.12);
            border-color: rgba(16, 185, 129, 0.3);
            color: var(--accent-success);
        }

        .plan-price {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.2;
        }

        .plan-price .unit {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-muted);
        }

        .plan-features {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .plan-features li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .plan-features li i {
            color: var(--accent-success);
            font-size: 14px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .plan-cta {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 20px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            width: 100%;
        }

        .plan-cta.primary {
            background: var(--brand-gradient);
            color: #fff;
        }

        .plan-cta.primary:hover {
            color: #fff;
            box-shadow: 0 10px 26px rgba(236, 72, 153, 0.4);
            transform: translateY(-2px);
        }

        .plan-cta.outline {
            background: transparent;
            color: var(--text-main);
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .plan-cta.outline:hover {
            color: var(--text-main);
            border-color: var(--brand-b);
            background: rgba(236, 72, 153, 0.08);
        }

        /* ========== Compare Metrics ========== */
        .compare-metrics {
            background: var(--bg-base);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card-sm {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: var(--transition);
        }

        .metric-card-sm:hover {
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-default);
            transform: translateY(-3px);
        }

        .metric-card-sm .metric-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--brand-gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--brand-b);
            flex-shrink: 0;
        }

        .metric-card-sm .metric-value {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.2;
        }

        .metric-card-sm .metric-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        .metric-card-sm .metric-change {
            font-size: 12px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .metric-card-sm .metric-change.up {
            color: var(--accent-success);
        }

        .metric-card-sm .metric-change.down {
            color: var(--accent-danger);
        }

        /* ========== Comparison Table ========== */
        .comparison-table-section {
            background: var(--bg-base);
        }

        .compare-table-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-default);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }

        .compare-table th {
            padding: 18px 20px;
            text-align: left;
            font-weight: 600;
            color: var(--text-main);
            background: rgba(124, 58, 237, 0.08);
            border-bottom: 1px solid var(--bd-subtle);
            white-space: nowrap;
        }

        .compare-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--bd-subtle);
            color: var(--text-muted);
            vertical-align: middle;
        }

        .compare-table tr:last-child td {
            border-bottom: none;
        }

        .compare-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
        }

        .compare-table .col-highlight {
            color: var(--text-main);
            font-weight: 500;
        }

        .compare-table .status-ok {
            color: var(--accent-success);
            font-weight: 500;
        }

        .compare-table .status-warn {
            color: var(--accent-warn);
            font-weight: 500;
        }

        .compare-table .bar-cell {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .compare-table .bar-track {
            flex: 1;
            height: 6px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
            min-width: 60px;
        }

        .compare-table .bar-fill {
            height: 100%;
            border-radius: 3px;
            background: var(--brand-gradient);
        }

        /* ========== Cover Cards Grid ========== */
        .cover-cards-section {
            background: var(--bg-base);
        }

        .cover-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 20px;
        }

        .cover-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .cover-card:hover {
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(236, 72, 153, 0.25);
        }

        .cover-card.col-span-6 {
            grid-column: span 6;
        }

        .cover-card.col-span-3 {
            grid-column: span 3;
        }

        .cover-card.col-span-4 {
            grid-column: span 4;
        }

        .cover-card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-card-hover);
            flex-shrink: 0;
        }

        .cover-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .cover-card:hover .cover-card-img-wrap img {
            transform: scale(1.05);
        }

        .cover-card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .cover-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
        }

        .cover-card-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
        }

        .cover-card-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 500;
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.3);
            color: var(--accent-success);
        }

        .cover-card-badge.warn {
            background: rgba(245, 158, 11, 0.12);
            border-color: rgba(245, 158, 11, 0.3);
            color: var(--accent-warn);
        }

        .cover-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin: 0;
        }

        .cover-card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        .cover-card-stats {
            display: flex;
            align-items: center;
            gap: 16px;
            padding-top: 12px;
            border-top: 1px solid var(--bd-subtle);
        }

        .cover-card-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .cover-card-stat-value {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
        }

        .cover-card-stat-label {
            font-size: 11px;
            color: var(--text-faint);
        }

        /* ========== FAQ ========== */
        .faq-compare-section {
            background: var(--bg-base);
        }

        .faq-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-card:hover {
            border-color: rgba(236, 72, 153, 0.2);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 20px;
            cursor: pointer;
            transition: var(--transition);
            user-select: none;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text-main);
            font-family: inherit;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .faq-question .faq-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--brand-b);
            flex-shrink: 0;
            width: 28px;
            text-align: center;
        }

        .faq-question-text {
            flex: 1;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
        }

        .faq-icon {
            font-size: 14px;
            color: var(--text-faint);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-card.open .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-b);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
        }

        .faq-card.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px 62px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }

        /* ========== CTA ========== */
        .cta-card-section {
            background: var(--bg-base);
            padding-bottom: var(--section-pad);
        }

        .cta-compare-card {
            background: var(--bg-card);
            border: 2px solid transparent;
            border-image: var(--brand-gradient) 1;
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            box-shadow: var(--shadow-glow);
            background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
                var(--brand-gradient) border-box;
            position: relative;
            overflow: hidden;
        }

        .cta-compare-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(236, 72, 153, 0.15), transparent 70%);
            pointer-events: none;
        }

        .cta-compare-left {
            flex: 1;
            min-width: 280px;
            position: relative;
            z-index: 1;
        }

        .cta-compare-left h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .cta-compare-left p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }

        .cta-compare-right {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: rgba(23, 18, 31, 0.96);
            border-top: 1px solid var(--bd-subtle);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .nav-logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
            max-width: 360px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--brand-b);
        }

        .footer-bottom {
            border-top: 1px solid var(--bd-subtle);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: var(--text-faint);
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
        }

        .footer-bottom-links a {
            color: var(--text-faint);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-bottom-links a:hover {
            color: var(--brand-b);
        }

        /* ========== Responsive ========== */
        @media (max-width: 991.98px) {
            :root {
                --section-pad: 72px;
            }

            .compare-plans {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .plan-card.featured {
                order: -1;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .cover-card.col-span-6,
            .cover-card.col-span-3,
            .cover-card.col-span-4 {
                grid-column: span 6;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --section-pad: 56px;
                --nav-height: 64px;
            }

            .hero-compare {
                padding: 40px 0 40px;
            }

            .hero-compare h1 {
                font-size: 28px;
            }

            .hero-compare-sub {
                font-size: 15px;
            }

            .hero-compare-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .hero-compare-actions {
                width: 100%;
            }

            .btn-primary-gradient,
            .btn-outline-light-custom {
                flex: 1;
                justify-content: center;
                padding: 12px 18px;
                font-size: 14px;
            }

            .metrics-grid {
                grid-template-columns: 1fr;
            }

            .cover-card.col-span-6,
            .cover-card.col-span-3,
            .cover-card.col-span-4 {
                grid-column: span 12;
            }

            .compare-table th,
            .compare-table td {
                padding: 12px 14px;
                font-size: 12px;
            }

            .compare-table .bar-cell {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .compare-table .bar-track {
                min-width: 40px;
            }

            .cta-compare-card {
                padding: 32px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-compare-right {
                width: 100%;
                flex-direction: column;
            }

            .cta-compare-right .btn-primary-gradient,
            .cta-compare-right .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .site-header .container-custom {
                gap: 12px;
            }

            .nav-logo {
                font-size: 17px;
            }

            .nav-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 13px;
                border-radius: 8px;
            }

            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
        }

        @media (max-width: 575.98px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }

            .hero-compare h1 {
                font-size: 24px;
            }

            .section-title {
                font-size: 24px;
            }

            .plan-card.featured {
                padding: 28px 20px;
            }

            .plan-card {
                padding: 24px 18px;
            }

            .compare-table {
                font-size: 11px;
            }

            .compare-table th,
            .compare-table td {
                padding: 10px 8px;
            }

            .cover-card-body {
                padding: 16px;
            }

            .cover-card-title {
                font-size: 15px;
            }

            .nav-chips {
                gap: 4px;
            }

            .nav-chip {
                padding: 6px 14px;
                font-size: 12px;
            }
        }

        /* focus visible for accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-b);
            outline-offset: 2px;
        }

        .btn-primary-gradient:focus-visible,
        .nav-cta:focus-visible,
        .plan-cta:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 2px;
        }

/* roulang page: category4 */
:root {
            --bg-base: #0D0A12;
            --bg-card: #17121F;
            --bg-card-hover: #1E1728;
            --bd-subtle: rgba(255, 255, 255, 0.08);
            --bd-focus: rgba(236, 72, 153, 0.35);
            --brand-a: #7C3AED;
            --brand-b: #EC4899;
            --brand-gradient: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(124, 58, 237, 0.18) 0%, rgba(236, 72, 153, 0.18) 100%);
            --accent-warn: #F59E0B;
            --accent-success: #10B981;
            --accent-danger: #EF4444;
            --text-main: #F5F3F7;
            --text-muted: #A29DAA;
            --text-faint: #7A7485;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-default: 0 12px 30px rgba(124, 58, 237, 0.18);
            --shadow-hover: 0 20px 40px rgba(236, 72, 153, 0.25);
            --shadow-glow: 0 0 50px rgba(124, 58, 237, 0.22);
            --font-sans: "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 56px;
            --nav-height: 72px;
            --transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: var(--font-sans);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--brand-b);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: var(--section-pad) 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-tag i {
            font-size: 12px;
            color: var(--brand-b);
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 48px;
            max-width: 720px;
        }

        /* ========== Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(13, 10, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--bd-subtle);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-logo span {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-chips {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
        }

        .nav-chips::-webkit-scrollbar {
            display: none;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .nav-chip:hover {
            color: var(--text-main);
            border-color: rgba(124, 58, 237, 0.35);
            background: var(--brand-gradient-soft);
        }

        .nav-chip.active {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: var(--shadow-default);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            text-decoration: none;
        }

        .nav-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        /* ========== Hero Banner ========== */
        .page-hero {
            position: relative;
            padding: 80px 0 72px;
            background-image: linear-gradient(rgba(13, 10, 18, 0.82), rgba(13, 10, 18, 0.92)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--bd-subtle);
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 6px;
            background: var(--brand-gradient);
            opacity: 0.7;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .hero-breadcrumb a {
            color: var(--text-muted);
        }

        .hero-breadcrumb a:hover {
            color: var(--brand-b);
        }

        .hero-breadcrumb .separator {
            color: var(--text-faint);
        }

        .hero-breadcrumb .current {
            color: var(--brand-b);
            font-weight: 500;
        }

        .page-hero h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 18px;
            letter-spacing: -0.02em;
            max-width: 700px;
        }

        .page-hero .hero-sub {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .countdown-bar {
            display: inline-flex;
            align-items: center;
            gap: 16px;
            padding: 12px 24px;
            background: rgba(23, 18, 31, 0.85);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-pill);
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .countdown-bar .countdown-label {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .countdown-bar .countdown-value {
            font-size: 18px;
            font-weight: 700;
            color: var(--accent-warn);
            letter-spacing: 0.5px;
            font-variant-numeric: tabular-nums;
        }

        .countdown-bar .countdown-unit {
            font-size: 12px;
            color: var(--text-faint);
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-gradient {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-primary-gradient:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .btn-outline-gradient {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: var(--radius-pill);
            background: transparent;
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.25);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-outline-gradient:hover {
            color: var(--text-main);
            border-color: var(--brand-b);
            background: var(--brand-gradient-soft);
        }

        /* ========== Stats Dashboard ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            overflow: hidden;
            transition: var(--transition);
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--brand-gradient);
            opacity: 0;
            transition: var(--transition);
        }

        .stat-card:hover {
            border-color: rgba(124, 58, 237, 0.35);
            box-shadow: var(--shadow-default);
            transform: translateY(-4px);
        }

        .stat-card:hover::before {
            opacity: 1;
        }

        .stat-card .stat-value {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .stat-card .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
        }

        .stat-badge.success {
            background: rgba(16, 185, 129, 0.15);
            color: var(--accent-success);
            border: 1px solid rgba(16, 185, 129, 0.3);
        }

        .stat-badge.warn {
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent-warn);
            border: 1px solid rgba(245, 158, 11, 0.3);
        }

        .stat-badge.danger {
            background: rgba(239, 68, 68, 0.15);
            color: var(--accent-danger);
            border: 1px solid rgba(239, 68, 68, 0.3);
        }

        .stat-badge.info {
            background: rgba(124, 58, 237, 0.15);
            color: #B794F4;
            border: 1px solid rgba(124, 58, 237, 0.35);
        }

        /* ========== Service Matrix Cards ========== */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }

        .matrix-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .matrix-card:hover {
            border-color: rgba(124, 58, 237, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }

        .matrix-card.col-span-5 {
            grid-column: span 5;
        }

        .matrix-card.col-span-7 {
            grid-column: span 7;
        }

        .matrix-card.col-span-4 {
            grid-column: span 4;
        }

        .matrix-card.col-span-6 {
            grid-column: span 6;
        }

        .matrix-card.col-span-12 {
            grid-column: span 12;
        }

        .matrix-card .card-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #1E1728;
        }

        .matrix-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .matrix-card:hover .card-cover img {
            transform: scale(1.05);
        }

        .matrix-card .card-cover::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(transparent, rgba(23, 18, 31, 0.95));
        }

        .matrix-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .matrix-card .card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .card-chip {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
        }

        .card-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 600;
        }

        .card-badge.live {
            background: rgba(16, 185, 129, 0.15);
            color: var(--accent-success);
            border: 1px solid rgba(16, 185, 129, 0.3);
        }

        .card-badge.trending {
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent-warn);
            border: 1px solid rgba(245, 158, 11, 0.3);
        }

        .card-badge.hot {
            background: rgba(239, 68, 68, 0.15);
            color: var(--accent-danger);
            border: 1px solid rgba(239, 68, 68, 0.3);
        }

        .matrix-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin: 0;
        }

        .matrix-card .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .matrix-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-faint);
            margin-top: auto;
            padding-top: 8px;
        }

        /* ========== Comparison ========== */
        .comparison-wrapper {
            position: relative;
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 24px;
            align-items: stretch;
        }

        .comparison-card {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: var(--transition);
        }

        .comparison-card:hover {
            border-color: rgba(124, 58, 237, 0.35);
            box-shadow: var(--shadow-default);
        }

        .comparison-card .comp-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            gap: 12px;
            flex-wrap: wrap;
        }

        .comparison-card .comp-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
        }

        .comparison-card .comp-sub {
            font-size: 13px;
            color: var(--text-muted);
        }

        .vs-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            align-self: center;
            box-shadow: var(--shadow-glow);
            flex-shrink: 0;
        }

        .metric-bar-group {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .metric-item {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .metric-item .metric-label {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 14px;
            color: var(--text-muted);
        }

        .metric-item .metric-value {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }

        .metric-bar {
            height: 8px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-pill);
            overflow: hidden;
        }

        .metric-bar .metric-fill {
            height: 100%;
            border-radius: var(--radius-pill);
            transition: width 1s ease;
        }

        .metric-fill.up {
            background: var(--brand-gradient);
        }

        .metric-fill.success {
            background: var(--accent-success);
        }

        .metric-fill.warn {
            background: var(--accent-warn);
        }

        .metric-fill.danger {
            background: var(--accent-danger);
        }

        .diff-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
        }

        .diff-tag.positive {
            background: rgba(16, 185, 129, 0.15);
            color: var(--accent-success);
        }

        .diff-tag.negative {
            background: rgba(239, 68, 68, 0.15);
            color: var(--accent-danger);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 900px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(124, 58, 237, 0.3);
        }

        .faq-item.active {
            border-color: rgba(124, 58, 237, 0.45);
            box-shadow: var(--shadow-default);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            user-select: none;
            transition: var(--transition);
            border: none;
            background: transparent;
            width: 100%;
            text-align: left;
            color: var(--text-main);
        }

        .faq-question .faq-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            font-size: 14px;
            font-weight: 700;
            color: var(--brand-b);
            flex-shrink: 0;
        }

        .faq-question .faq-text {
            flex: 1;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            font-size: 14px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            background: var(--brand-gradient);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }

        /* ========== CTA Form ========== */
        .cta-form-section {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
        }

        .cta-form-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.18), transparent 70%);
            pointer-events: none;
        }

        .cta-form-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(236, 72, 153, 0.12), transparent 70%);
            pointer-events: none;
        }

        .cta-form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .cta-form-left h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .cta-form-left p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .cta-feature-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .cta-feature-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .cta-feature-list li i {
            color: var(--accent-success);
            font-size: 14px;
        }

        .cta-form-card {
            background: rgba(23, 18, 31, 0.85);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md);
            padding: 32px;
        }

        .form-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .form-control-dark {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            color: var(--text-main);
            font-size: 14px;
            transition: var(--transition);
            width: 100%;
            outline: none;
        }

        .form-control-dark:focus {
            border-color: var(--brand-b);
            box-shadow: 0 0 0 3px var(--bd-focus);
            background: rgba(255, 255, 255, 0.08);
        }

        .form-control-dark::placeholder {
            color: var(--text-faint);
        }

        textarea.form-control-dark {
            resize: vertical;
            min-height: 100px;
        }

        .btn-submit {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
            justify-content: center;
        }

        .btn-submit:hover {
            filter: brightness(1.1);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        /* ========== Timeline ========== */
        .timeline-section {
            position: relative;
            padding: 32px 0;
        }

        .timeline-item {
            display: flex;
            gap: 20px;
            position: relative;
            padding-bottom: 32px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 15px;
            top: 36px;
            bottom: 0;
            width: 2px;
            background: rgba(124, 58, 237, 0.25);
        }

        .timeline-item:last-child::before {
            display: none;
        }

        .timeline-dot {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 12px;
            flex-shrink: 0;
            z-index: 1;
            box-shadow: var(--shadow-default);
        }

        .timeline-content {
            flex: 1;
            padding-top: 4px;
        }

        .timeline-content .tl-time {
            font-size: 12px;
            color: var(--text-faint);
            margin-bottom: 6px;
        }

        .timeline-content .tl-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .timeline-content .tl-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0A070E;
            border-top: 1px solid var(--bd-subtle);
            padding: 64px 0 0;
            margin-top: 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-top: 16px;
            max-width: 320px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--brand-b);
        }

        .footer-bottom {
            border-top: 1px solid var(--bd-subtle);
            padding: 20px 0;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-faint);
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }

        .footer-bottom-links a {
            font-size: 13px;
            color: var(--text-faint);
        }

        .footer-bottom-links a:hover {
            color: var(--brand-b);
        }

        /* ========== Responsive ========== */
        @media (max-width: 991px) {
            :root {
                --section-pad: 72px;
            }

            .section-title {
                font-size: 26px;
            }

            .page-hero h1 {
                font-size: 32px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .matrix-card.col-span-5,
            .matrix-card.col-span-7,
            .matrix-card.col-span-4,
            .matrix-card.col-span-6,
            .matrix-card.col-span-12 {
                grid-column: span 6;
            }

            .comparison-wrapper {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .vs-badge {
                width: 44px;
                height: 44px;
                font-size: 14px;
            }

            .cta-form-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767px) {
            .site-header .container-custom {
                flex-wrap: wrap;
                gap: 10px;
                padding-top: 8px;
                padding-bottom: 8px;
            }

            .site-header {
                height: auto;
                min-height: var(--nav-height);
                padding: 8px 0;
            }

            .nav-chips {
                order: 3;
                width: 100%;
                gap: 4px;
            }

            .nav-chip {
                padding: 6px 14px;
                font-size: 12px;
            }

            .nav-cta {
                padding: 8px 16px;
                font-size: 12px;
            }
        }

        @media (max-width: 575px) {
            :root {
                --section-pad: 56px;
            }

            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }

            .page-hero {
                padding: 56px 0 48px;
            }

            .page-hero h1 {
                font-size: 26px;
            }

            .page-hero .hero-sub {
                font-size: 15px;
            }

            .stats-grid {
                grid-template-columns: 1fr;
            }

            .matrix-card.col-span-5,
            .matrix-card.col-span-7,
            .matrix-card.col-span-4,
            .matrix-card.col-span-6,
            .matrix-card.col-span-12 {
                grid-column: span 12;
            }

            .matrix-card .card-cover {
                aspect-ratio: 2 / 1;
            }

            .comparison-card {
                padding: 20px;
            }

            .cta-form-section {
                padding: 32px 20px;
            }

            .cta-form-card {
                padding: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }

            .footer-bottom-links {
                margin-left: 0;
            }

            .countdown-bar {
                padding: 10px 16px;
                gap: 10px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .btn-primary-gradient,
            .btn-outline-gradient {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 400px) {
            .section-title {
                font-size: 22px;
            }

            .page-hero h1 {
                font-size: 22px;
            }

            .nav-logo {
                font-size: 17px;
            }

            .nav-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }
        }

        /* Focus states for accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-b);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px var(--bd-focus);
        }

/* roulang page: category5 */
:root {
            --bg-base: #0D0A12;
            --bg-card: #17121F;
            --bg-card-hover: #1E1728;
            --bd-subtle: rgba(255, 255, 255, 0.08);
            --bd-focus: rgba(236, 72, 153, 0.35);
            --brand-a: #7C3AED;
            --brand-b: #EC4899;
            --brand-gradient: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(124, 58, 237, 0.18) 0%, rgba(236, 72, 153, 0.18) 100%);
            --accent-warn: #F59E0B;
            --accent-success: #10B981;
            --accent-danger: #EF4444;
            --text-main: #F5F3F7;
            --text-muted: #A29DAA;
            --text-faint: #7A7485;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-default: 0 12px 30px rgba(124, 58, 237, 0.18);
            --shadow-hover: 0 20px 40px rgba(236, 72, 153, 0.25);
            --shadow-glow: 0 0 50px rgba(124, 58, 237, 0.22);
            --font-sans: "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 56px;
            --nav-height: 72px;
            --transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: var(--font-sans);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--brand-b);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: var(--section-pad) 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-tag i {
            font-size: 12px;
            color: var(--brand-b);
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 48px;
            max-width: 720px;
        }

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(13, 10, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--bd-subtle);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
        }

        .nav-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-logo span {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-chips {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
        }

        .nav-chips::-webkit-scrollbar {
            display: none;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .nav-chip:hover {
            color: var(--text-main);
            border-color: rgba(124, 58, 237, 0.4);
            background: var(--brand-gradient-soft);
        }

        .nav-chip.active {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.35);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: var(--transition);
            text-decoration: none;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .nav-cta i {
            font-size: 13px;
        }

        /* Mobile nav toggle */
        .mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-sm);
            color: var(--text-main);
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            flex-shrink: 0;
            font-size: 18px;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            padding: 18px 0;
            border-bottom: 1px solid var(--bd-subtle);
            background: rgba(23, 18, 31, 0.7);
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 10px;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 13px;
            color: var(--text-muted);
        }

        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .breadcrumb-list li:not(:last-child)::after {
            content: "›";
            color: var(--text-faint);
            font-size: 16px;
            margin-left: 10px;
        }

        .breadcrumb-list a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }

        .breadcrumb-list a:hover {
            color: var(--brand-b);
        }

        .breadcrumb-list .current {
            color: var(--brand-b);
            font-weight: 500;
        }

        /* Hero Banner */
        .hero-banner {
            position: relative;
            padding: 72px 0 64px;
            background-image: linear-gradient(135deg, rgba(13, 10, 18, 0.85) 0%, rgba(23, 18, 31, 0.9) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--bd-subtle);
            overflow: hidden;
        }

        .hero-banner::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.25) 0%, transparent 65%);
            pointer-events: none;
        }

        .hero-banner::after {
            content: "";
            position: absolute;
            bottom: -40%;
            left: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(236, 72, 153, 0.2) 0%, transparent 65%);
            pointer-events: none;
        }

        .hero-banner .container-custom {
            position: relative;
            z-index: 2;
        }

        .hero-banner .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.3);
            color: var(--accent-warn);
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
        }

        .hero-banner .hero-badge i {
            font-size: 12px;
        }

        .hero-banner h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            max-width: 680px;
        }

        .hero-banner h1 .gradient-text {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-banner p.hero-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .hero-banner .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-brand-gradient {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-brand-gradient:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-outline-light-custom:hover {
            border-color: var(--brand-b);
            color: var(--brand-b);
            box-shadow: 0 4px 18px rgba(236, 72, 153, 0.2);
        }

        .hero-kpi-row {
            display: flex;
            gap: 16px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .hero-kpi-chip {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 20px;
            border-radius: var(--radius-md);
            background: rgba(23, 18, 31, 0.8);
            border: 1px solid var(--bd-subtle);
            font-size: 13px;
            color: var(--text-muted);
        }

        .hero-kpi-chip .kpi-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .hero-kpi-chip .kpi-dot.dot-warn {
            background: var(--accent-warn);
            box-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
        }

        .hero-kpi-chip .kpi-dot.dot-success {
            background: var(--accent-success);
            box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
        }

        .hero-kpi-chip .kpi-dot.dot-brand {
            background: var(--brand-b);
            box-shadow: 0 0 10px rgba(236, 72, 153, 0.5);
        }

        /* Card Grid */
        .card-grid-section {
            padding: 72px 0;
            background: var(--bg-base);
        }

        .plan-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .plan-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(236, 72, 153, 0.3);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .plan-card .card-image-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: 0;
        }

        .plan-card .card-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .plan-card:hover .card-image-wrap img {
            transform: scale(1.05);
        }

        .plan-card .card-image-wrap::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(to top, rgba(13, 10, 18, 0.9) 0%, transparent 100%);
            pointer-events: none;
        }

        .plan-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .plan-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .plan-card .card-chip {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 500;
            letter-spacing: 0.3px;
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
        }

        .plan-card .card-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 600;
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.3);
            color: var(--accent-warn);
        }

        .plan-card .card-badge.badge-success {
            background: rgba(16, 185, 129, 0.15);
            border-color: rgba(16, 185, 129, 0.3);
            color: var(--accent-success);
        }

        .plan-card .card-badge.badge-danger {
            background: rgba(239, 68, 68, 0.15);
            border-color: rgba(239, 68, 68, 0.3);
            color: var(--accent-danger);
        }

        .plan-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
            line-height: 1.4;
        }

        .plan-card .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .plan-card .card-footer-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--bd-subtle);
        }

        .plan-card .card-footer-meta span {
            font-size: 12px;
            color: var(--text-faint);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .plan-card .card-footer-meta .update-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-success);
            display: inline-block;
        }

        /* Feature Section */
        .feature-section {
            padding: 72px 0;
            background: var(--bg-base);
            border-top: 1px solid var(--bd-subtle);
            border-bottom: 1px solid var(--bd-subtle);
        }

        .feature-tile {
            padding: 28px 24px;
            border-radius: var(--radius-lg);
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            height: 100%;
            transition: var(--transition);
        }

        .feature-tile:hover {
            border-color: rgba(124, 58, 237, 0.35);
            box-shadow: var(--shadow-default);
            transform: translateY(-2px);
        }

        .feature-tile .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--brand-gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--brand-b);
            margin-bottom: 16px;
        }

        .feature-tile h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .feature-tile p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Data Comparison */
        .data-compare-section {
            padding: 72px 0;
            background: var(--bg-base);
        }

        .compare-card {
            padding: 28px 26px;
            border-radius: var(--radius-lg);
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            height: 100%;
            transition: var(--transition);
        }

        .compare-card:hover {
            border-color: rgba(236, 72, 153, 0.3);
            box-shadow: var(--shadow-default);
        }

        .compare-card .compare-label {
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .compare-card .compare-label.label-a {
            color: var(--brand-a);
        }

        .compare-card .compare-label.label-b {
            color: var(--brand-b);
        }

        .compare-card h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .compare-metric-row {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 18px;
        }

        .compare-metric {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .compare-metric .metric-bar {
            flex: 1;
            height: 8px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
        }

        .compare-metric .metric-bar .metric-fill {
            height: 100%;
            border-radius: 999px;
            background: var(--brand-gradient);
            transition: width 0.6s ease;
        }

        .compare-metric .metric-fill.fill-success {
            background: linear-gradient(135deg, #10B981, #34D399);
        }

        .compare-metric .metric-fill.fill-warn {
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
        }

        .compare-metric .metric-value {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            min-width: 42px;
            text-align: right;
        }

        .vs-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin: 0 auto;
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
            flex-shrink: 0;
        }

        /* FAQ */
        .faq-section {
            padding: 72px 0;
            background: var(--bg-base);
            border-top: 1px solid var(--bd-subtle);
        }

        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-card-hover);
            color: var(--text-main);
            box-shadow: none;
            border-bottom: 1px solid var(--bd-subtle);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.3);
            border-color: var(--bd-focus);
        }

        .faq-accordion .accordion-button::after {
            filter: invert(0.8);
            transition: var(--transition);
        }

        .faq-accordion .accordion-body {
            background: var(--bg-card);
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
            padding: 18px 22px;
        }

        .faq-accordion .faq-number {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--brand-gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-b);
            flex-shrink: 0;
        }

        /* CTA Form */
        .cta-section {
            padding: 72px 0;
            background: var(--bg-base);
            border-top: 1px solid var(--bd-subtle);
        }

        .cta-card {
            padding: 40px 36px;
            border-radius: var(--radius-lg);
            background: var(--bg-card);
            border: 1px solid rgba(124, 58, 237, 0.3);
            box-shadow: var(--shadow-glow);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(236, 72, 153, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-card h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
            line-height: 1.8;
        }

        .form-control-custom {
            width: 100%;
            padding: 12px 18px;
            border-radius: var(--radius-sm);
            background: rgba(13, 10, 18, 0.7);
            border: 1px solid var(--bd-subtle);
            color: var(--text-main);
            font-size: 14px;
            transition: var(--transition);
            outline: none;
        }

        .form-control-custom:focus {
            border-color: var(--brand-b);
            box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.2);
            outline: none;
        }

        .form-control-custom::placeholder {
            color: var(--text-faint);
        }

        textarea.form-control-custom {
            resize: vertical;
            min-height: 100px;
        }

        .form-label-custom {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
            display: block;
        }

        /* Footer */
        .site-footer {
            background: #0A0710;
            border-top: 1px solid var(--bd-subtle);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .nav-logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--brand-b);
        }

        .footer-bottom {
            border-top: 1px solid var(--bd-subtle);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: var(--text-faint);
        }

        .footer-bottom .footer-bottom-links {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }

        .footer-bottom .footer-bottom-links a {
            color: var(--text-faint);
            font-size: 12px;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-bottom .footer-bottom-links a:hover {
            color: var(--brand-b);
        }

        /* Responsive */
        @media (max-width: 991px) {
            .nav-chips {
                gap: 4px;
            }
            .nav-chip {
                padding: 6px 14px;
                font-size: 13px;
            }
            .hero-banner h1 {
                font-size: 28px;
            }
            .section-pad {
                padding: 56px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .compare-card {
                margin-bottom: 16px;
            }
            .vs-badge {
                margin: 16px auto;
            }
        }

        @media (max-width: 767px) {
            .mobile-toggle {
                display: flex;
            }
            .nav-chips {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(13, 10, 18, 0.97);
                border-bottom: 1px solid var(--bd-subtle);
                padding: 16px 24px;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
            }
            .nav-chips.open {
                display: flex;
            }
            .nav-chip {
                padding: 10px 18px;
                border-radius: var(--radius-sm);
                justify-content: center;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .hero-banner {
                padding: 48px 0 40px;
            }
            .hero-banner h1 {
                font-size: 24px;
            }
            .hero-banner p.hero-desc {
                font-size: 14px;
            }
            .section-pad {
                padding: 40px 0;
            }
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 22px;
            }
            .section-desc {
                font-size: 14px;
                margin-bottom: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-bottom .footer-bottom-links {
                margin-left: 0;
                flex-wrap: wrap;
                gap: 12px;
            }
            .hero-kpi-row {
                gap: 10px;
            }
            .hero-kpi-chip {
                padding: 8px 14px;
                font-size: 12px;
            }
            .card-grid-section,
            .feature-section,
            .data-compare-section,
            .faq-section,
            .cta-section {
                padding: 40px 0;
            }
            .cta-card {
                padding: 28px 20px;
            }
            .cta-card h2 {
                font-size: 20px;
            }
            .plan-card .card-body {
                padding: 16px 16px 18px;
            }
            .plan-card .card-title {
                font-size: 16px;
            }
            .plan-card .card-desc {
                font-size: 13px;
            }
        }

        @media (max-width: 575px) {
            .hero-banner h1 {
                font-size: 21px;
            }
            .btn-brand-gradient,
            .btn-outline-light-custom {
                padding: 10px 20px;
                font-size: 13px;
            }
            .vs-badge {
                width: 44px;
                height: 44px;
                font-size: 15px;
            }
            .compare-card {
                padding: 20px 18px;
            }
            .compare-card h4 {
                font-size: 17px;
            }
            .faq-accordion .accordion-button {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-accordion .accordion-body {
                padding: 14px 16px;
                font-size: 13px;
            }
        }

/* roulang page: category6 */
:root {
            --bg-base: #0D0A12;
            --bg-card: #17121F;
            --bg-card-hover: #1E1728;
            --bd-subtle: rgba(255, 255, 255, 0.08);
            --bd-focus: rgba(236, 72, 153, 0.35);
            --brand-a: #7C3AED;
            --brand-b: #EC4899;
            --brand-gradient: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(124, 58, 237, 0.18) 0%, rgba(236, 72, 153, 0.18) 100%);
            --accent-warn: #F59E0B;
            --accent-success: #10B981;
            --accent-danger: #EF4444;
            --text-main: #F5F3F7;
            --text-muted: #A29DAA;
            --text-faint: #7A7485;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-default: 0 12px 30px rgba(124, 58, 237, 0.18);
            --shadow-hover: 0 20px 40px rgba(236, 72, 153, 0.25);
            --shadow-glow: 0 0 50px rgba(124, 58, 237, 0.22);
            --font-sans: "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 56px;
            --nav-height: 72px;
            --transition: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: var(--font-sans);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--brand-b);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: var(--section-pad) 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-tag i {
            font-size: 12px;
            color: var(--brand-b);
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 48px;
            max-width: 720px;
        }

        /* ========== Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(13, 10, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--bd-subtle);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
        }

        .nav-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-logo span {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-chips {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
        }

        .nav-chips::-webkit-scrollbar {
            display: none;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .nav-chip:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--bd-subtle);
        }

        .nav-chip.active {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: var(--shadow-default);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            box-shadow: var(--shadow-default);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            color: #fff;
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .nav-cta i {
            font-size: 13px;
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-bar {
            padding: 20px 0 0;
            background: transparent;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-faint);
            list-style: none;
            padding: 0;
            margin: 0;
            flex-wrap: wrap;
        }

        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-custom li a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }

        .breadcrumb-custom li a:hover {
            color: var(--brand-b);
        }

        .breadcrumb-custom li.separator i {
            font-size: 10px;
            color: var(--text-faint);
        }

        .breadcrumb-custom li.current {
            color: var(--brand-b);
            font-weight: 500;
        }

        /* ========== Category Banner ========== */
        .cat-banner {
            position: relative;
            padding: 72px 0 56px;
            background-image: linear-gradient(rgba(13, 10, 18, 0.82), rgba(13, 10, 18, 0.88)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--bd-subtle);
        }

        .cat-banner::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to bottom, transparent, var(--bg-base));
            pointer-events: none;
        }

        .cat-banner .container-custom {
            position: relative;
            z-index: 2;
        }

        .cat-banner .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            color: var(--text-main);
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 18px;
        }

        .cat-banner .banner-tag i {
            font-size: 12px;
            color: var(--brand-b);
        }

        .cat-banner h1 {
            font-size: 40px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            max-width: 800px;
        }

        .cat-banner h1 .highlight {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .cat-banner .banner-desc {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 700px;
            margin-bottom: 28px;
        }

        .cat-banner .banner-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .cat-banner .banner-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .cat-banner .banner-meta .meta-item i {
            color: var(--brand-b);
            font-size: 13px;
        }

        .cat-banner .banner-cta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .btn-gradient {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            box-shadow: var(--shadow-default);
        }

        .btn-gradient:hover {
            color: #fff;
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: transparent;
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.25);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-outline-light-custom:hover {
            color: var(--text-main);
            border-color: var(--brand-b);
            background: rgba(236, 72, 153, 0.08);
        }

        /* ========== KPI Cards ========== */
        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -20px;
            position: relative;
            z-index: 3;
        }

        .kpi-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--bd-subtle);
            box-shadow: var(--shadow-default);
            transition: var(--transition);
        }

        .kpi-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            background: var(--bg-card-hover);
        }

        .kpi-card .kpi-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.01em;
        }

        .kpi-card .kpi-value.positive {
            color: var(--accent-success);
        }

        .kpi-card .kpi-value.warning {
            color: var(--accent-warn);
        }

        .kpi-card .kpi-value.brand {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .kpi-card .kpi-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 400;
        }

        .kpi-card .kpi-badge {
            display: inline-block;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            font-size: 12px;
            font-weight: 500;
            color: var(--brand-b);
            margin-bottom: 10px;
        }

        /* ========== Service Matrix Cards ========== */
        .card-grid-irregular {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }

        .card-grid-irregular .card-wide {
            grid-column: span 8;
        }

        .card-grid-irregular .card-standard {
            grid-column: span 4;
        }

        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--bd-subtle);
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            background: var(--bg-card-hover);
            border-color: rgba(236, 72, 153, 0.25);
        }

        .service-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-card-hover);
        }

        .service-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .service-card:hover .card-cover img {
            transform: scale(1.05);
        }

        .service-card .card-cover .cover-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(to bottom, rgba(13, 10, 18, 0.1), rgba(13, 10, 18, 0.7));
            pointer-events: none;
        }

        .service-card .card-body-custom {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card .card-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 12px;
        }

        .chip-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            font-size: 12px;
            font-weight: 500;
            color: var(--text-main);
            white-space: nowrap;
        }

        .badge-data {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.3);
            font-size: 12px;
            font-weight: 500;
            color: var(--accent-success);
            white-space: nowrap;
        }

        .badge-data.warn {
            background: rgba(245, 158, 11, 0.12);
            border-color: rgba(245, 158, 11, 0.3);
            color: var(--accent-warn);
        }

        .badge-data.danger {
            background: rgba(239, 68, 68, 0.12);
            border-color: rgba(239, 68, 68, 0.3);
            color: var(--accent-danger);
        }

        .service-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .service-card .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }

        .service-card .card-link {
            font-size: 13px;
            color: var(--brand-b);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .service-card .card-link:hover {
            color: var(--text-main);
            gap: 10px;
        }

        .service-card .card-link i {
            font-size: 11px;
        }

        /* ========== Process Section ========== */
        .process-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .process-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--bd-subtle);
            text-align: center;
            transition: var(--transition);
        }

        .process-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-default);
            border-color: rgba(124, 58, 237, 0.3);
        }

        .process-item .process-num {
            font-size: 36px;
            font-weight: 700;
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 10px;
            line-height: 1.2;
        }

        .process-item .process-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .process-item .process-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== Comparison Section ========== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .comparison-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--bd-subtle);
            box-shadow: var(--shadow-default);
        }

        .comparison-card.before {
            border-color: rgba(239, 68, 68, 0.2);
        }

        .comparison-card.after {
            border-color: rgba(16, 185, 129, 0.2);
        }

        .comparison-card .comp-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .comparison-card .comp-title .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .comparison-card.before .comp-title .dot {
            background: var(--accent-danger);
        }

        .comparison-card.after .comp-title .dot {
            background: var(--accent-success);
        }

        .comp-bar-row {
            margin-bottom: 14px;
        }

        .comp-bar-row .comp-bar-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 5px;
            display: flex;
            justify-content: space-between;
        }

        .comp-bar-row .comp-bar-track {
            height: 6px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-pill);
            overflow: hidden;
        }

        .comp-bar-row .comp-bar-fill {
            height: 100%;
            border-radius: var(--radius-pill);
            transition: width 0.6s ease;
        }

        .comparison-card.before .comp-bar-fill {
            background: linear-gradient(90deg, #EF4444, #F59E0B);
        }

        .comparison-card.after .comp-bar-fill {
            background: linear-gradient(90deg, var(--accent-success), var(--brand-b));
        }

        .vs-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--brand-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            box-shadow: var(--shadow-glow);
            align-self: center;
            flex-shrink: 0;
        }

        .comp-diff {
            font-size: 13px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .comp-diff.up {
            color: var(--accent-success);
        }

        .comp-diff.down {
            color: var(--accent-danger);
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-default);
        }

        .faq-accordion .accordion-header {
            margin: 0;
        }

        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-main);
            font-weight: 500;
            font-size: 15px;
            padding: 18px 24px;
            border: none;
            box-shadow: none;
            display: flex;
            align-items: center;
            gap: 14px;
            border-radius: var(--radius-md) !important;
            transition: var(--transition);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-card-hover);
            color: var(--text-main);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px var(--bd-focus);
            border-color: var(--bd-focus);
        }

        .faq-accordion .accordion-button::after {
            display: none;
        }

        .faq-accordion .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--brand-b);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-accordion .accordion-button:not(.collapsed) .faq-icon {
            transform: rotate(45deg);
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
        }

        .faq-accordion .accordion-body {
            padding: 0 24px 20px 66px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            background: var(--bg-card);
        }

        .faq-accordion .faq-num {
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-b);
            flex-shrink: 0;
            width: 24px;
        }

        /* ========== CTA Form ========== */
        .cta-section {
            position: relative;
            padding: var(--section-pad) 0;
            background: linear-gradient(180deg, var(--bg-base) 0%, var(--bg-card) 100%);
            border-top: 1px solid var(--bd-subtle);
        }

        .cta-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px;
            border: 1px solid rgba(124, 58, 237, 0.25);
            box-shadow: var(--shadow-glow);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: var(--brand-gradient);
            opacity: 0.12;
            pointer-events: none;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: var(--brand-gradient);
            opacity: 0.08;
            pointer-events: none;
        }

        .cta-card .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .cta-card .cta-info h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .cta-card .cta-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .cta-card .cta-info .cta-highlight {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(124, 58, 237, 0.3);
            font-size: 13px;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .cta-card .cta-info .cta-highlight i {
            color: var(--brand-b);
            font-size: 12px;
        }

        .cta-form .form-control-custom {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--bd-subtle);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            color: var(--text-main);
            font-size: 14px;
            transition: var(--transition);
            width: 100%;
            margin-bottom: 14px;
            outline: none;
        }

        .cta-form .form-control-custom::placeholder {
            color: var(--text-faint);
        }

        .cta-form .form-control-custom:focus {
            border-color: var(--brand-b);
            box-shadow: 0 0 0 3px var(--bd-focus);
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-form textarea.form-control-custom {
            resize: vertical;
            min-height: 100px;
        }

        .btn-submit {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--shadow-default);
            width: 100%;
            justify-content: center;
        }

        .btn-submit:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .cta-note {
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 10px;
            text-align: center;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--bd-subtle);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand .nav-logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col ul li a:hover {
            color: var(--brand-b);
        }

        .footer-col ul li a i {
            font-size: 10px;
            color: var(--text-faint);
        }

        .footer-bottom {
            border-top: 1px solid var(--bd-subtle);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            align-items: center;
            font-size: 12px;
            color: var(--text-faint);
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: var(--text-faint);
            font-size: 12px;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-bottom-links a:hover {
            color: var(--brand-b);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-list {
                grid-template-columns: repeat(2, 1fr);
            }

            .card-grid-irregular .card-wide {
                grid-column: span 7;
            }

            .card-grid-irregular .card-standard {
                grid-column: span 5;
            }

            .cta-card .cta-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 64px;
                --nav-height: 62px;
            }

            .site-header .container-custom {
                flex-wrap: wrap;
                gap: 8px;
                padding-top: 8px;
                padding-bottom: 8px;
            }

            .site-header {
                height: auto;
                min-height: var(--nav-height);
                padding: 6px 0;
            }

            .nav-chips {
                order: 3;
                width: 100%;
                overflow-x: auto;
                padding-bottom: 4px;
            }

            .nav-cta {
                font-size: 13px;
                padding: 8px 16px;
            }

            .cat-banner h1 {
                font-size: 30px;
            }

            .cat-banner .banner-desc {
                font-size: 15px;
            }

            .kpi-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
                margin-top: 0;
            }

            .kpi-card {
                padding: 18px;
            }

            .kpi-card .kpi-value {
                font-size: 24px;
            }

            .card-grid-irregular {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .card-grid-irregular .card-wide,
            .card-grid-irregular .card-standard {
                grid-column: span 1;
            }

            .process-list {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .process-item {
                padding: 18px;
            }

            .process-item .process-num {
                font-size: 28px;
            }

            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .vs-badge {
                width: 44px;
                height: 44px;
                font-size: 14px;
                margin: 0 auto;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-brand {
                grid-column: span 2;
            }

            .cta-card {
                padding: 28px 20px;
            }

            .section-title {
                font-size: 24px;
            }

            .breadcrumb-bar {
                padding-top: 12px;
            }
        }

        @media (max-width: 520px) {
            .nav-logo {
                font-size: 17px;
            }

            .nav-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 13px;
                border-radius: 8px;
            }

            .nav-chip {
                padding: 6px 14px;
                font-size: 12px;
            }

            .nav-cta {
                padding: 7px 14px;
                font-size: 12px;
            }

            .cat-banner {
                padding: 48px 0 40px;
            }

            .cat-banner h1 {
                font-size: 24px;
            }

            .cat-banner .banner-desc {
                font-size: 14px;
            }

            .cat-banner .banner-cta {
                flex-direction: column;
                gap: 10px;
            }

            .btn-gradient,
            .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
                padding: 10px 20px;
                font-size: 14px;
            }

            .kpi-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .process-list {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .footer-brand {
                grid-column: span 1;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }

            .faq-accordion .accordion-body {
                padding: 0 16px 16px 16px;
                font-size: 13px;
            }

            .faq-accordion .accordion-button {
                padding: 14px 16px;
                font-size: 14px;
                gap: 10px;
            }

            .faq-accordion .faq-num {
                width: 20px;
                font-size: 12px;
            }

            .section-pad {
                padding: var(--section-pad-mobile) 0;
            }
        }