/* roulang page: index */
:root {
            --bg-primary: #0B0B14;
            --bg-secondary: #12121E;
            --bg-tertiary: #0E0E1A;
            --accent-purple: #7C3AED;
            --accent-purple-hover: #6D28D9;
            --accent-cyan: #06D6A0;
            --accent-orange: #F97316;
            --text-primary: #F2F0F7;
            --text-secondary: #B8B6C9;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --border-color: #27273A;
            --border-divider: #1E1E30;
            --radius-card: 0.75rem;
            --radius-btn: 0.5rem;
            --radius-badge: 2rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 32px rgba(124, 58, 237, 0.35);
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', '微软雅黑', 'Inter', 'Roboto Mono', 'DIN', sans-serif;
            --font-mono: 'Roboto Mono', 'DIN', 'Inter', monospace;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --gradient-main: linear-gradient(135deg, #7C3AED 0%, #06D6A0 100%);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--accent-cyan);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }

        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .section-padding {
            padding: 5rem 0;
        }

        .section-padding-sm {
            padding: 3.5rem 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
            border-left: 3px solid var(--accent-purple);
            padding-left: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 2.5rem;
            max-width: 720px;
        }

        .highlight {
            color: var(--accent-purple);
        }

        .highlight-cyan {
            color: var(--accent-cyan);
        }

        .highlight-orange {
            color: var(--accent-orange);
        }

        .btn-custom-primary {
            background-color: var(--accent-purple);
            color: var(--text-white);
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            font-size: 1rem;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
        }

        .btn-custom-primary:hover {
            background-color: var(--accent-purple-hover);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
        }

        .btn-custom-primary:active {
            background-color: var(--accent-purple);
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-custom-primary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            box-shadow: none;
        }

        .btn-custom-secondary {
            background-color: transparent;
            color: var(--text-primary);
            border: 1px solid #3A3A52;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 1rem;
            transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base), transform var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
        }

        .btn-custom-secondary:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background-color: rgba(6, 214, 160, 0.08);
            transform: translateY(-2px);
        }

        .btn-custom-secondary:active {
            border-color: #3A3A52;
            color: var(--text-primary);
            background-color: transparent;
            transform: translateY(0);
        }

        .btn-custom-secondary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .btn-link-custom {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: color var(--transition-base);
            background: none;
            border: none;
            cursor: pointer;
        }

        .btn-link-custom:hover {
            color: var(--accent-cyan);
            text-decoration: underline;
        }

        .btn-link-custom .arrow {
            transition: transform var(--transition-base);
        }

        .btn-link-custom:hover .arrow {
            transform: translateX(4px);
        }

        .badge-custom {
            display: inline-block;
            padding: 0.35rem 0.9rem;
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            line-height: 1.5;
        }

        .badge-live {
            background-color: rgba(6, 214, 160, 0.15);
            color: var(--accent-cyan);
            border: 1px solid rgba(6, 214, 160, 0.3);
        }

        .badge-upcoming {
            background-color: rgba(124, 58, 237, 0.15);
            color: var(--accent-purple);
            border: 1px solid rgba(124, 58, 237, 0.35);
        }

        .badge-ended {
            background-color: rgba(107, 114, 128, 0.15);
            color: var(--text-muted);
            border: 1px solid rgba(107, 114, 128, 0.3);
        }

        .badge-orange {
            background-color: rgba(249, 115, 22, 0.15);
            color: var(--accent-orange);
            border: 1px solid rgba(249, 115, 22, 0.3);
        }

        .card-custom {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 1.5rem 2rem;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            height: 100%;
        }

        .card-custom:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 0.625rem;
            background-color: rgba(124, 58, 237, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.25rem;
            color: var(--accent-purple);
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .card-icon-cyan {
            background-color: rgba(6, 214, 160, 0.12);
            color: var(--accent-cyan);
        }

        .card-icon-orange {
            background-color: rgba(249, 115, 22, 0.12);
            color: var(--accent-orange);
        }

        .card-title {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 0.625rem;
            line-height: 1.4;
        }

        .card-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0.75rem;
        }

        .icon-circle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: rgba(124, 58, 237, 0.2);
            color: var(--accent-purple);
            font-size: 1rem;
            font-weight: 700;
        }

        .icon-circle-cyan {
            background-color: rgba(6, 214, 160, 0.15);
            color: var(--accent-cyan);
        }

        .form-control-custom {
            background-color: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            color: var(--text-primary);
            padding: 0.75rem 1rem;
            font-size: 0.95rem;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            width: 100%;
        }

        .form-control-custom:focus {
            border-color: var(--accent-purple);
            box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.35);
            background-color: var(--bg-tertiary);
            color: var(--text-primary);
        }

        .form-label-custom {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
            display: block;
        }

        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background-color: rgba(11, 11, 20, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 0.6rem 0;
            border-bottom: 1px solid transparent;
            transition: background-color var(--transition-base), border-color var(--transition-base);
        }

        .navbar-custom.scrolled {
            background-color: rgba(11, 11, 20, 0.95);
            border-bottom: 1px solid var(--border-color);
        }

        .navbar-custom .navbar-brand {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .navbar-custom .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--gradient-main);
            border-radius: 0.5rem;
            color: var(--text-white);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.925rem;
            padding: 0.5rem 0.9rem;
            transition: color var(--transition-base);
            position: relative;
        }

        .navbar-custom .nav-link:hover {
            color: var(--accent-cyan);
        }

        .navbar-custom .nav-link.active {
            color: var(--accent-cyan);
        }

        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0.1rem;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background-color: var(--accent-cyan);
            border-radius: 2px;
        }

        .navbar-custom .navbar-toggler {
            border: none;
            color: var(--text-primary);
            font-size: 1.3rem;
            padding: 0.3rem;
        }

        .navbar-custom .navbar-toggler:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            box-shadow: none;
        }

        .navbar-custom .navbar-toggler-icon {
            background-image: none;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .navbar-custom .navbar-toggler-icon::before {
            content: '\f0c9';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 1.4rem;
            color: var(--text-primary);
        }

        .hero-section {
            position: relative;
            min-height: 82vh;
            display: flex;
            align-items: center;
            padding: 8rem 0 4rem;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 40%, rgba(11, 11, 20, 0.4) 0%, rgba(11, 11, 20, 0.85) 55%, var(--bg-primary) 100%);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to bottom, transparent 0%, var(--bg-primary) 100%);
            z-index: 1;
        }

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

        .hero-content {
            max-width: 640px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background-color: rgba(124, 58, 237, 0.15);
            border: 1px solid rgba(124, 58, 237, 0.4);
            color: var(--accent-cyan);
            padding: 0.45rem 1.2rem;
            border-radius: var(--radius-badge);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: 1.5rem;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent-cyan);
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.3);
            }
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            margin-bottom: 1.25rem;
            letter-spacing: -0.02em;
        }

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

        .hero-description {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 2rem;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .hero-stats-mini {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .hero-stat-mini {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-mini .number {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
            line-height: 1.3;
        }

        .hero-stat-mini .label {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .hero-visual-panel {
            position: relative;
            border-radius: 1.5rem;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 20px 60px rgba(124, 58, 237, 0.25);
            background-color: rgba(18, 18, 30, 0.85);
            backdrop-filter: blur(8px);
            min-height: 420px;
            display: flex;
            flex-direction: column;
        }

        .hero-visual-panel .panel-header {
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .hero-visual-panel .panel-header .panel-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero-visual-panel .panel-body {
            flex: 1;
            padding: 1.25rem 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .hero-visual-panel .match-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 1rem;
            background-color: rgba(11, 11, 20, 0.5);
            border-radius: 0.5rem;
            border: 1px solid var(--border-divider);
        }

        .hero-visual-panel .match-row .team-name {
            font-size: 0.85rem;
            color: var(--text-primary);
            font-weight: 600;
        }

        .hero-visual-panel .match-row .match-time {
            font-size: 0.75rem;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
        }

        .hero-visual-panel .match-row .match-score {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-white);
            font-family: var(--font-mono);
        }

        .metrics-section {
            margin-top: -4rem;
            position: relative;
            z-index: 10;
        }

        .metric-card {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            height: 100%;
        }

        .metric-card:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-hover);
        }

        .metric-card .metric-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 0.5rem;
        }

        .metric-card .metric-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
            line-height: 1.2;
            margin-bottom: 0.5rem;
        }

        .metric-card .metric-trend {
            font-size: 0.78rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .metric-card .metric-trend .up {
            color: var(--accent-cyan);
            font-weight: 600;
        }

        .entry-matrix {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 1.25rem;
            align-items: stretch;
        }

        .entry-tile {
            position: relative;
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            cursor: pointer;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            min-height: 220px;
            justify-content: center;
        }

        .entry-tile:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .entry-tile .entry-icon {
            width: 56px;
            height: 56px;
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1rem;
            background-color: rgba(124, 58, 237, 0.15);
            color: var(--accent-purple);
        }

        .entry-tile .entry-icon.cyan {
            background-color: rgba(6, 214, 160, 0.12);
            color: var(--accent-cyan);
        }

        .entry-tile .entry-icon.orange {
            background-color: rgba(249, 115, 22, 0.12);
            color: var(--accent-orange);
        }

        .entry-tile .entry-name {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.4rem;
        }

        .entry-tile .entry-desc {
            font-size: 0.78rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .milestone-section {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-divider);
            border-bottom: 1px solid var(--border-divider);
        }

        .timeline-item {
            display: flex;
            gap: 1.5rem;
            margin-bottom: 2.5rem;
            position: relative;
            padding-left: 2rem;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 28px;
            bottom: -28px;
            width: 2px;
            background-color: var(--border-color);
        }

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

        .timeline-item .timeline-dot {
            position: absolute;
            left: 0;
            top: 8px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background-color: var(--accent-purple);
            border: 3px solid var(--bg-secondary);
            box-shadow: 0 0 0 2px var(--accent-purple);
            flex-shrink: 0;
        }

        .timeline-item .timeline-dot.cyan {
            background-color: var(--accent-cyan);
            box-shadow: 0 0 0 2px var(--accent-cyan);
        }

        .timeline-item .timeline-dot.orange {
            background-color: var(--accent-orange);
            box-shadow: 0 0 0 2px var(--accent-orange);
        }

        .timeline-item .timeline-content .timeline-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.35rem;
        }

        .timeline-item .timeline-content .timeline-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .timeline-item .timeline-content .timeline-date {
            font-size: 0.75rem;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
            font-weight: 600;
            margin-bottom: 0.3rem;
        }

        .compare-card {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2rem;
            height: 100%;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .compare-card.highlighted {
            border-color: var(--accent-purple);
            background-color: rgba(124, 58, 237, 0.08);
            box-shadow: 0 8px 32px rgba(124, 58, 237, 0.2);
            position: relative;
        }

        .compare-card .compare-badge {
            position: absolute;
            top: -0.8rem;
            right: 1.5rem;
            background-color: var(--accent-purple);
            color: var(--text-white);
            padding: 0.25rem 0.9rem;
            border-radius: var(--radius-badge);
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        .compare-card .compare-header {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1.25rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-card .compare-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.6rem 0;
            font-size: 0.92rem;
            color: var(--text-secondary);
        }

        .compare-card .compare-item .check {
            color: var(--accent-cyan);
            font-weight: 700;
            flex-shrink: 0;
        }

        .compare-card .compare-item .cross {
            color: var(--text-muted);
            font-weight: 700;
            flex-shrink: 0;
        }

        .compare-card .compare-item .cross-orange {
            color: var(--accent-orange);
            font-weight: 700;
            flex-shrink: 0;
        }

        .news-list-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--border-divider);
            transition: background-color var(--transition-base);
            align-items: flex-start;
        }

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

        .news-list-item .news-thumb {
            width: 120px;
            height: 80px;
            border-radius: 0.5rem;
            overflow: hidden;
            flex-shrink: 0;
        }

        .news-list-item .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-list-item .news-content .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.4rem;
            line-height: 1.5;
        }

        .news-list-item .news-content .news-summary {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0.4rem;
        }

        .news-list-item .news-content .news-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            gap: 1rem;
        }

        .news-list-item .news-content .news-meta .data-point {
            color: var(--accent-cyan);
            font-weight: 600;
        }

        .guarantee-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            justify-content: center;
            align-items: center;
            padding: 3rem 2rem;
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.95rem;
            color: var(--text-primary);
            font-weight: 500;
        }

        .guarantee-item .g-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .g-icon.cyan {
            background-color: rgba(6, 214, 160, 0.12);
            color: var(--accent-cyan);
        }

        .g-icon.purple {
            background-color: rgba(124, 58, 237, 0.15);
            color: var(--accent-purple);
        }

        .g-icon.orange {
            background-color: rgba(249, 115, 22, 0.12);
            color: var(--accent-orange);
        }

        .g-icon.grey {
            background-color: rgba(107, 114, 128, 0.15);
            color: var(--text-muted);
        }

        .testimonial-card {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.75rem;
            height: 100%;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .testimonial-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 4px 20px rgba(6, 214, 160, 0.2);
        }

        .testimonial-card .t-user {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1rem;
        }

        .testimonial-card .t-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(124, 58, 237, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-purple);
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .testimonial-card .t-name {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
        }

        .testimonial-card .t-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .testimonial-card .t-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-accordion .accordion-item {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 0.5rem;
            margin-bottom: 0.5rem;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background-color: var(--bg-secondary);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 1.25rem 1.5rem;
            border: none;
            box-shadow: none;
            transition: background-color var(--transition-base), color var(--transition-base);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background-color: var(--bg-tertiary);
            color: var(--accent-cyan);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent-purple);
        }

        .faq-accordion .accordion-button::after {
            background-image: none;
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--accent-purple);
            font-size: 0.8rem;
            transition: transform var(--transition-base);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }

        .faq-accordion .accordion-body {
            background-color: var(--bg-tertiary);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            padding: 1.25rem 1.5rem;
            border-top: 1px solid var(--border-divider);
        }

        .partner-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-badge);
            padding: 0.65rem 1.4rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base);
            cursor: default;
        }

        .partner-tag:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background-color: rgba(6, 214, 160, 0.06);
        }

        .footer-section {
            background-color: #08080F;
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 1.5rem;
        }

        .footer-section .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-section .footer-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 280px;
        }

        .footer-section .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

        .footer-section .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-section .footer-links li {
            margin-bottom: 0.5rem;
        }

        .footer-section .footer-links a {
            font-size: 0.88rem;
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .footer-section .footer-links a:hover {
            color: var(--accent-cyan);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-divider);
            margin-top: 3rem;
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

        .footer-bottom .copyright {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-bottom .footer-meta-links {
            display: flex;
            gap: 1.25rem;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-bottom .footer-meta-links a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }

        .footer-bottom .footer-meta-links a:hover {
            color: var(--accent-cyan);
        }

        .brand-intro-block {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2.5rem;
            position: relative;
            overflow: hidden;
        }

        .brand-intro-block::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--gradient-main);
        }

        .brand-intro-block .intro-text {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 2;
        }

        .bg-darker {
            background-color: var(--bg-tertiary);
        }

        @media (max-width: 1199.98px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .entry-matrix {
                grid-template-columns: repeat(3, 1fr);
            }
            .section-padding {
                padding: 4rem 0;
            }
            .section-padding-sm {
                padding: 3rem 0;
            }
        }

        @media (max-width: 991.98px) {
            .hero-section {
                min-height: auto;
                padding: 6rem 0 3rem;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-visual-panel {
                min-height: 300px;
                margin-top: 2rem;
            }
            .entry-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
            .navbar-custom .navbar-collapse {
                background-color: var(--bg-secondary);
                border-radius: 0.75rem;
                padding: 1rem;
                margin-top: 0.75rem;
                border: 1px solid var(--border-color);
            }
            .navbar-custom .nav-link {
                padding: 0.75rem 1rem;
            }
            .navbar-custom .nav-link.active::after {
                display: none;
            }
            .navbar-custom .nav-link.active {
                background-color: rgba(6, 214, 160, 0.1);
                border-radius: 0.5rem;
            }
            .section-title {
                font-size: 1.75rem;
            }
        }

        @media (max-width: 767.98px) {
            .hero-title {
                font-size: 1.85rem;
            }
            .hero-description {
                font-size: 1rem;
            }
            .hero-section {
                padding: 5.5rem 0 2.5rem;
            }
            .entry-matrix {
                grid-template-columns: 1fr 1fr;
            }
            .entry-tile {
                min-height: 160px;
                padding: 1.25rem 1rem;
            }
            .metric-card .metric-value {
                font-size: 1.5rem;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .section-padding-sm {
                padding: 2.5rem 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .compare-card {
                padding: 1.25rem;
            }
            .compare-card .compare-badge {
                right: 0.75rem;
            }
            .news-list-item {
                flex-direction: column;
                gap: 0.75rem;
            }
            .news-list-item .news-thumb {
                width: 100%;
                height: 160px;
            }
            .guarantee-bar {
                flex-direction: column;
                align-items: flex-start;
                padding: 2rem 1.25rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.75rem;
            }
            .brand-intro-block {
                padding: 1.5rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-stats-mini {
                gap: 1.25rem;
            }
        }

        @media (max-width: 575.98px) {
            .entry-matrix {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .section-padding {
                padding: 2.5rem 0;
            }
            .section-padding-sm {
                padding: 2rem 0;
            }
            .card-custom {
                padding: 1.25rem;
            }
            .metrics-section {
                margin-top: -2.5rem;
            }
            .metric-card {
                padding: 1rem 0.75rem;
            }
            .metric-card .metric-value {
                font-size: 1.2rem;
            }
            .footer-section {
                padding: 2.5rem 0 1rem;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 0.5rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0B0B14;
            --bg-secondary: #12121E;
            --bg-tertiary: #0E0E1A;
            --accent-purple: #7C3AED;
            --accent-purple-hover: #6D28D9;
            --accent-cyan: #06D6A0;
            --accent-orange: #F97316;
            --text-primary: #F2F0F7;
            --text-secondary: #B8B6C9;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --border-color: #27273A;
            --border-divider: #1E1E30;
            --radius-card: 0.75rem;
            --radius-btn: 0.5rem;
            --radius-badge: 2rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 32px rgba(124, 58, 237, 0.35);
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', '微软雅黑', 'Inter', 'Roboto Mono', 'DIN', sans-serif;
            --font-mono: 'Roboto Mono', 'DIN', 'Inter', monospace;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --gradient-main: linear-gradient(135deg, #7C3AED 0%, #06D6A0 100%);
        }
        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--accent-cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea, select {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }
        button:focus, a:focus, input:focus, textarea:focus, select:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section-padding {
            padding: 5rem 0;
        }
        .section-padding-sm {
            padding: 3.5rem 0;
        }
        .section-label {
            display: inline-block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
            border-left: 3px solid var(--accent-purple);
            padding-left: 0.75rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 2.5rem;
            max-width: 720px;
        }
        .btn-custom-primary {
            background-color: var(--accent-purple);
            color: var(--text-white);
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            font-size: 1rem;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
        }
        .btn-custom-primary:hover {
            background-color: var(--accent-purple-hover);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
        }
        .btn-custom-primary:active {
            background-color: var(--accent-purple);
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-custom-primary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            box-shadow: none;
        }
        .btn-custom-secondary {
            background-color: transparent;
            color: var(--text-primary);
            border: 1px solid #3A3A52;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 1rem;
            transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base), transform var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
        }
        .btn-custom-secondary:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background-color: rgba(6, 214, 160, 0.08);
            transform: translateY(-2px);
        }
        .btn-custom-secondary:active {
            border-color: #3A3A52;
            color: var(--text-primary);
            background-color: transparent;
            transform: translateY(0);
        }
        .btn-custom-secondary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }
        .btn-link-custom {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: color var(--transition-base);
            background: none;
            border: none;
            cursor: pointer;
        }
        .btn-link-custom:hover {
            color: var(--accent-cyan);
            text-decoration: underline;
        }
        .btn-link-custom .arrow {
            transition: transform var(--transition-base);
        }
        .btn-link-custom:hover .arrow {
            transform: translateX(4px);
        }
        .badge-custom {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: var(--radius-badge);
            letter-spacing: 0.03em;
            line-height: 1.5;
        }
        .badge-purple {
            background: rgba(124, 58, 237, 0.15);
            color: #B79CFF;
            border: 1px solid rgba(124, 58, 237, 0.35);
        }
        .badge-cyan {
            background: rgba(6, 214, 160, 0.12);
            color: #4AF0C0;
            border: 1px solid rgba(6, 214, 160, 0.3);
        }
        .badge-orange {
            background: rgba(249, 115, 22, 0.12);
            color: #FFA96A;
            border: 1px solid rgba(249, 115, 22, 0.3);
        }
        .badge-muted {
            background: rgba(107, 114, 128, 0.12);
            color: #A7A9B8;
            border: 1px solid rgba(107, 114, 128, 0.25);
        }
        .navbar-custom {
            background: rgba(11, 11, 20, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 0.5rem 0;
            transition: background 0.3s ease, border-color 0.3s ease;
            border-bottom: 1px solid transparent;
            z-index: 1000;
        }
        .navbar-custom.scrolled {
            background: rgba(11, 11, 20, 0.95);
            border-bottom: 1px solid var(--border-color);
        }
        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-white);
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--gradient-main);
            border-radius: 0.4rem;
            color: #fff;
            font-size: 0.9rem;
        }
        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 0.5rem 0.85rem;
            border-radius: 0.4rem;
            transition: color var(--transition-base), background-color var(--transition-base);
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: var(--accent-cyan);
            background: rgba(6, 214, 160, 0.06);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent-cyan);
            background: transparent;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0.05rem;
            left: 0.85rem;
            right: 0.85rem;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
        }
        .navbar-toggler {
            border: 1px solid #3A3A52;
            background: transparent;
            color: var(--text-primary);
            padding: 0.3rem 0.6rem;
        }
        .navbar-toggler-icon {
            background-image: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text-white);
            font-size: 1.2rem;
        }
        .hero-section {
            position: relative;
            min-height: 80vh;
            display: flex;
            align-items: center;
            padding: 8rem 0 5rem;
            background: var(--bg-primary);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 75% 50%, rgba(11,11,20,0.55) 0%, rgba(11,11,20,0.85) 55%, #0B0B14 100%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 1;
        }
        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(124, 58, 237, 0.12);
            border: 1px solid rgba(124, 58, 237, 0.35);
            color: #CBB2FF;
            border-radius: 2rem;
            padding: 0.35rem 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
            letter-spacing: 0.04em;
        }
        .hero-kicker i {
            color: var(--accent-cyan);
        }
        .hero-title {
            font-size: 2.75rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 1.25rem;
        }
        .hero-title .highlight {
            background: var(--gradient-main);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .hero-description {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 2rem;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .hero-image-wrap {
            position: relative;
            z-index: 1;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 20px 60px rgba(0,0,0,0.45);
            background: rgba(18,18,30,0.7);
            backdrop-filter: blur(12px);
        }
        .hero-image-wrap img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            opacity: 0.85;
        }
        .hero-image-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,11,20,0.2) 0%, rgba(11,11,20,0.1) 100%);
            pointer-events: none;
        }
        .metric-board {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 2.5rem 0;
        }
        .metric-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.75rem 1.5rem;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            height: 100%;
        }
        .metric-card:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-hover);
        }
        .metric-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0.6rem;
            font-weight: 500;
        }
        .metric-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }
        .metric-note {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 0.6rem;
            line-height: 1.6;
        }
        .content-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.75rem;
            height: 100%;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
        }
        .content-card:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 0.75rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(124, 58, 237, 0.15);
            color: var(--accent-purple);
            font-size: 1.25rem;
            margin-bottom: 1.25rem;
            flex-shrink: 0;
        }
        .service-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }
        .service-card-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 1.25rem;
        }
        .compare-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.75rem;
            height: 100%;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .compare-card.highlight {
            background: rgba(124, 58, 237, 0.08);
            border-color: var(--accent-purple);
            position: relative;
        }
        .compare-card.highlight .compare-badge-top {
            position: absolute;
            top: -1px;
            right: 1.5rem;
            transform: translateY(-50%);
            background: var(--accent-purple);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.8rem;
            border-radius: 2rem;
            letter-spacing: 0.04em;
        }
        .compare-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            margin-bottom: 0.9rem;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .compare-list li:last-child {
            margin-bottom: 0;
        }
        .compare-check {
            color: var(--accent-cyan);
            font-weight: 600;
            flex-shrink: 0;
        }
        .compare-cross {
            color: var(--text-muted);
            font-weight: 600;
            flex-shrink: 0;
        }
        .faq-section {
            background: var(--bg-primary);
        }
        .accordion-custom .accordion-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            margin-bottom: 0.75rem;
            overflow: hidden;
        }
        .accordion-custom .accordion-header {
            background: var(--bg-secondary);
        }
        .accordion-custom .accordion-button {
            background: var(--bg-secondary);
            color: var(--text-primary);
            border: none;
            font-weight: 600;
            padding: 1.15rem 1.5rem;
            box-shadow: none;
            transition: background-color 0.3s ease, color 0.3s ease;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: rgba(124, 58, 237, 0.06);
            color: #CBB2FF;
            box-shadow: none;
        }
        .accordion-custom .accordion-button::after {
            filter: invert(1);
            opacity: 0.6;
            transition: opacity 0.3s;
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-cyan);
            outline-offset: -2px;
        }
        .accordion-custom .accordion-body {
            background: var(--bg-tertiary);
            color: var(--text-secondary);
            padding: 1.15rem 1.5rem 1.5rem;
            line-height: 1.8;
            font-size: 0.95rem;
        }
        .form-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2.5rem;
            box-shadow: var(--shadow-card);
        }
        .form-control-custom {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            color: var(--text-primary);
            padding: 0.75rem 1rem;
            width: 100%;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .form-control-custom:focus {
            border-color: var(--accent-purple);
            box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.15);
            outline: none;
        }
        .form-control-custom::placeholder {
            color: #565A6B;
        }
        .form-text-custom {
            font-size: 0.75rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .footer-section {
            background: #08080F;
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 1.5rem;
        }
        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .footer-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
            max-width: 300px;
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1.25rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.6rem;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            margin-top: 3rem;
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .hero-question {
            background: rgba(11,11,20,0.6);
            border-left: 3px solid var(--accent-cyan);
            padding: 1rem 1.25rem;
            border-radius: 0 0.75rem 0.75rem 0;
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
            color: #D9FDF2;
            font-weight: 500;
            line-height: 1.7;
        }
        @media (max-width: 991.98px) {
            .hero-section {
                min-height: auto;
                padding: 7rem 0 4rem;
            }
            .hero-title {
                font-size: 2.25rem;
            }
            .hero-image-wrap img {
                height: 300px;
            }
            .navbar-collapse {
                background: rgba(11,11,20,0.98);
                border-radius: 0.75rem;
                padding: 1rem;
                margin-top: 0.5rem;
                border: 1px solid var(--border-color);
            }
        }
        @media (max-width: 767.98px) {
            .section-padding {
                padding: 3.5rem 0;
            }
            .section-title {
                font-size: 1.75rem;
            }
            .hero-title {
                font-size: 1.85rem;
            }
            .hero-description {
                font-size: 1rem;
            }
            .metric-value {
                font-size: 1.65rem;
            }
            .form-card {
                padding: 1.75rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 575.98px) {
            .hero-title {
                font-size: 1.55rem;
            }
            .hero-image-wrap img {
                height: 240px;
            }
            .navbar-brand {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B0B14;
            --bg-secondary: #12121E;
            --bg-tertiary: #0E0E1A;
            --accent-purple: #7C3AED;
            --accent-purple-hover: #6D28D9;
            --accent-cyan: #06D6A0;
            --accent-orange: #F97316;
            --text-primary: #F2F0F7;
            --text-secondary: #B8B6C9;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --border-color: #27273A;
            --border-divider: #1E1E30;
            --radius-card: 0.75rem;
            --radius-btn: 0.5rem;
            --radius-badge: 2rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 32px rgba(124, 58, 237, 0.35);
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', '微软雅黑', 'Inter', 'Roboto Mono', 'DIN', sans-serif;
            --font-mono: 'Roboto Mono', 'DIN', 'Inter', monospace;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --gradient-main: linear-gradient(135deg, #7C3AED 0%, #06D6A0 100%);
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--accent-cyan);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }

        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .section-padding {
            padding: 5rem 0;
        }

        .section-padding-sm {
            padding: 3.5rem 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
            border-left: 3px solid var(--accent-purple);
            padding-left: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 2.5rem;
            max-width: 720px;
        }

        .btn-custom-primary {
            background-color: var(--accent-purple);
            color: var(--text-white);
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            font-size: 1rem;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
        }

        .btn-custom-primary:hover {
            background-color: var(--accent-purple-hover);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
        }

        .btn-custom-primary:active {
            background-color: var(--accent-purple);
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-custom-primary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            box-shadow: none;
        }

        .btn-custom-secondary {
            background-color: transparent;
            color: var(--text-primary);
            border: 1px solid #3A3A52;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 1rem;
            transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base), transform var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
        }

        .btn-custom-secondary:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background-color: rgba(6, 214, 160, 0.08);
            transform: translateY(-2px);
        }

        .btn-custom-secondary:active {
            border-color: #3A3A52;
            color: var(--text-primary);
            background-color: transparent;
            transform: translateY(0);
        }

        .btn-custom-secondary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .btn-link-custom {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: color var(--transition-base);
            background: none;
            border: none;
            cursor: pointer;
        }

        .btn-link-custom:hover {
            color: var(--accent-cyan);
            text-decoration: underline;
        }

        /* Navigation */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            height: 68px;
            background: rgba(11, 11, 20, 0.82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .navbar-custom.scrolled {
            background: rgba(11, 11, 20, 0.96);
            border-bottom: 1px solid var(--border-color);
        }

        .navbar-custom .navbar-brand {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 0.6rem;
            letter-spacing: 0.01em;
        }

        .navbar-custom .navbar-brand:hover {
            color: var(--text-white);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--gradient-main);
            border-radius: 0.4rem;
            font-size: 0.85rem;
            color: var(--text-white);
        }

        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            position: relative;
            transition: color var(--transition-base);
        }

        .navbar-custom .nav-link:hover {
            color: var(--text-white);
        }

        .navbar-custom .nav-link.active {
            color: var(--accent-cyan);
        }

        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            color: var(--text-primary);
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-cyan);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23F2F0F7' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Hero */
        .hero-section {
            min-height: 72vh;
            display: flex;
            align-items: center;
            position: relative;
            padding: 6.5rem 0 4rem;
            overflow: hidden;
            background: var(--bg-primary);
        }

        .hero-bg-image {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 55%;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.55;
        }

        .hero-bg-overlay {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 55%;
            background: linear-gradient(90deg, var(--bg-primary) 0%, rgba(11, 11, 20, 0.6) 45%, rgba(11, 11, 20, 0.15) 100%);
        }

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

        .hero-title {
            font-size: 2.75rem;
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 1.25rem;
            letter-spacing: -0.02em;
        }

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

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 2rem;
            max-width: 560px;
        }

        .hero-cta-group {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

        .hero-trust-list {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .hero-trust-list li {
            font-size: 0.875rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero-trust-list li i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
        }

        /* Quick stats strip */
        .stats-strip {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-divider);
            border-bottom: 1px solid var(--border-divider);
            padding: 2rem 0;
        }

        .stat-item {
            text-align: center;
            padding: 1rem;
        }

        .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        /* Event cards */
        .event-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .event-card:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .event-card-top {
            display: flex;
            gap: 1rem;
            padding: 1.5rem 1.5rem 0.75rem;
            align-items: flex-start;
        }

        .event-date-block {
            flex-shrink: 0;
            width: 56px;
            text-align: center;
            background: rgba(124, 58, 237, 0.12);
            border: 1px solid rgba(124, 58, 237, 0.3);
            border-radius: 0.5rem;
            padding: 0.5rem 0.25rem;
        }

        .event-date-day {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }

        .event-date-month {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .event-card-info {
            flex: 1;
            min-width: 0;
        }

        .event-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.35rem;
            line-height: 1.4;
        }

        .event-card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .event-card-meta i {
            font-size: 0.75rem;
            color: var(--accent-purple);
        }

        .event-card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding: 0.5rem 1.5rem;
            flex: 1;
        }

        .event-card-bottom {
            padding: 0.75rem 1.5rem 1.25rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-divider);
            margin-top: 0.5rem;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.25rem 0.8rem;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
        }

        .status-badge.live {
            background: rgba(6, 214, 160, 0.12);
            color: var(--accent-cyan);
            border: 1px solid rgba(6, 214, 160, 0.3);
        }

        .status-badge.registration {
            background: rgba(124, 58, 237, 0.12);
            color: var(--accent-purple);
            border: 1px solid rgba(124, 58, 237, 0.3);
        }

        .status-badge.upcoming {
            background: rgba(249, 115, 22, 0.1);
            color: var(--accent-orange);
            border: 1px solid rgba(249, 115, 22, 0.3);
        }

        .status-badge.ended {
            background: rgba(107, 114, 128, 0.12);
            color: var(--text-muted);
            border: 1px solid rgba(107, 114, 128, 0.3);
        }

        .btn-event {
            font-size: 0.85rem;
            padding: 0.45rem 1.1rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            background: transparent;
        }

        .btn-event:hover {
            border-color: var(--accent-purple);
            color: var(--accent-purple);
            background: rgba(124, 58, 237, 0.08);
        }

        /* Timeline */
        .timeline-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-divider);
            border-bottom: 1px solid var(--border-divider);
        }

        .timeline {
            position: relative;
            padding-left: 0;
            list-style: none;
            margin: 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 24px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--border-color);
        }

        .timeline-item {
            position: relative;
            padding-left: 64px;
            padding-bottom: 2.5rem;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: 16px;
            top: 6px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--accent-purple);
            border: 3px solid var(--bg-secondary);
            box-shadow: 0 0 0 2px var(--accent-purple);
        }

        .timeline-item.live .timeline-dot {
            background: var(--accent-cyan);
            box-shadow: 0 0 0 2px var(--accent-cyan);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 2px rgba(6, 214, 160, 0.4); }
            50% { box-shadow: 0 0 0 6px rgba(6, 214, 160, 0.15); }
        }

        .timeline-date {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
            letter-spacing: 0.05em;
            margin-bottom: 0.25rem;
        }

        .timeline-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.35rem;
        }

        .timeline-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 600px;
        }

        /* CTA form section */
        .cta-section {
            position: relative;
            overflow: hidden;
            background: var(--bg-primary);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-panel {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2.5rem;
            position: relative;
            z-index: 2;
            box-shadow: var(--shadow-card);
        }

        .cta-panel .section-title {
            font-size: 1.6rem;
            margin-bottom: 0.75rem;
        }

        .cta-panel .section-subtitle {
            margin-bottom: 1.5rem;
            font-size: 0.95rem;
        }

        .form-control-custom {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            color: var(--text-primary);
            padding: 0.7rem 1rem;
            font-size: 0.95rem;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            width: 100%;
        }

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

        .form-control-custom:focus {
            border-color: var(--accent-purple);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
            outline: none;
        }

        .form-label-custom {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 0.4rem;
            display: block;
        }

        .form-privacy {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 0.75rem;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-divider);
        }

        .accordion-custom .accordion-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 0.5rem !important;
            margin-bottom: 0.5rem;
            overflow: hidden;
        }

        .accordion-custom .accordion-button {
            background: var(--bg-secondary);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 1rem 1.25rem;
            border: none;
            box-shadow: none;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--bg-tertiary);
            color: var(--text-white);
            border-bottom: 1px solid var(--border-divider);
        }

        .accordion-custom .accordion-button::after {
            filter: invert(40%) sepia(80%) saturate(2000%) hue-rotate(250deg);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-purple);
            outline-offset: -2px;
        }

        .accordion-custom .accordion-body {
            background: var(--bg-tertiary);
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            padding: 1rem 1.25rem;
        }

        /* Footer */
        .footer-section {
            background: #08080F;
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
        }

        .footer-brand {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-bottom: 0.75rem;
        }

        .footer-desc {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-heading {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }

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

        .footer-links li {
            margin-bottom: 0.5rem;
        }

        .footer-links a {
            font-size: 0.875rem;
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent-cyan);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-divider);
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: space-between;
            align-items: center;
        }

        .copyright {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom-links {
            display: flex;
            gap: 1.25rem;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom-links a:hover {
            color: var(--accent-cyan);
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .hero-section {
                min-height: auto;
                padding: 5.5rem 0 3rem;
            }

            .hero-bg-image,
            .hero-bg-overlay {
                width: 100%;
                opacity: 0.3;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .section-title {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 767.98px) {
            .navbar-custom {
                height: auto;
                min-height: 60px;
                padding: 0.5rem 0;
            }

            .navbar-custom .nav-link {
                padding: 0.4rem 1rem;
                font-size: 0.9rem;
            }

            .navbar-custom .navbar-collapse {
                background: rgba(11, 11, 20, 0.98);
                border: 1px solid var(--border-color);
                border-radius: 0.5rem;
                padding: 1rem;
                margin-top: 0.5rem;
            }

            .hero-title {
                font-size: 1.8rem;
            }

            .hero-subtitle {
                font-size: 0.95rem;
            }

            .hero-cta-group {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-trust-list {
                gap: 0.75rem;
            }

            .section-padding {
                padding: 3.5rem 0;
            }

            .section-padding-sm {
                padding: 2.5rem 0;
            }

            .cta-panel {
                padding: 1.5rem;
            }

            .stat-number {
                font-size: 1.4rem;
            }

            .event-card-top {
                flex-direction: column;
                gap: 0.75rem;
            }

            .event-date-block {
                width: auto;
                display: flex;
                align-items: center;
                gap: 0.5rem;
                padding: 0.35rem 0.75rem;
            }
        }

        @media (max-width: 575.98px) {
            .hero-title {
                font-size: 1.5rem;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .btn-custom-primary,
            .btn-custom-secondary {
                width: 100%;
                justify-content: center;
            }

            .timeline-item {
                padding-left: 48px;
            }

            .timeline::before {
                left: 16px;
            }

            .timeline-dot {
                left: 8px;
                width: 15px;
                height: 15px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.75rem;
            }

            .footer-bottom-links {
                justify-content: center;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0B0B14;
            --bg-secondary: #12121E;
            --bg-tertiary: #0E0E1A;
            --accent-purple: #7C3AED;
            --accent-purple-hover: #6D28D9;
            --accent-cyan: #06D6A0;
            --accent-orange: #F97316;
            --text-primary: #F2F0F7;
            --text-secondary: #B8B6C9;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --border-color: #27273A;
            --border-divider: #1E1E30;
            --radius-card: 0.75rem;
            --radius-btn: 0.5rem;
            --radius-badge: 2rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 32px rgba(124, 58, 237, 0.35);
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', '微软雅黑', 'Inter', 'Roboto Mono', 'DIN', sans-serif;
            --font-mono: 'Roboto Mono', 'DIN', 'Inter', monospace;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --gradient-main: linear-gradient(135deg, #7C3AED 0%, #06D6A0 100%);
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--accent-cyan);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }

        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .section-padding {
            padding: 5rem 0;
        }

        .section-padding-sm {
            padding: 3.5rem 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
            border-left: 3px solid var(--accent-purple);
            padding-left: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 2.5rem;
            max-width: 720px;
        }

        .btn-custom-primary {
            background-color: var(--accent-purple);
            color: var(--text-white);
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            font-size: 1rem;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
            cursor: pointer;
        }

        .btn-custom-primary:hover {
            background-color: var(--accent-purple-hover);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
        }

        .btn-custom-primary:active {
            background-color: var(--accent-purple);
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-custom-primary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            box-shadow: none;
        }

        .btn-custom-secondary {
            background-color: transparent;
            color: var(--text-primary);
            border: 1px solid #3A3A52;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 1rem;
            transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base), transform var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
            cursor: pointer;
        }

        .btn-custom-secondary:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background-color: rgba(6, 214, 160, 0.08);
            transform: translateY(-2px);
        }

        .btn-custom-secondary:active {
            border-color: #3A3A52;
            color: var(--text-primary);
            background-color: transparent;
            transform: translateY(0);
        }

        .btn-custom-secondary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .btn-link-custom {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: color var(--transition-base);
            background: none;
            border: none;
            cursor: pointer;
        }

        .btn-link-custom:hover {
            color: var(--accent-cyan);
            text-decoration: underline;
        }

        /* Custom Navbar */
        .navbar-custom {
            background: rgba(11, 11, 20, 0.82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--border-color);
            transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
            min-height: 68px;
            z-index: 1030;
        }

        .navbar-custom.scrolled {
            background: rgba(11, 11, 20, 0.97);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-white);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .navbar-brand:hover {
            color: var(--text-white);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--gradient-main);
            border-radius: 0.5rem;
            font-size: 0.85rem;
            color: #fff;
        }

        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 1rem !important;
            border-bottom: 2px solid transparent;
            transition: color var(--transition-base), border-color var(--transition-base);
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover {
            color: var(--text-white);
        }

        .navbar-nav .nav-link.active {
            color: var(--accent-cyan);
            border-bottom-color: var(--accent-cyan);
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            padding: 0.4rem 0.7rem;
            border-radius: 0.4rem;
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23F2F0F7' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .navbar-custom .btn-custom-primary,
        .navbar-custom .btn-custom-secondary {
            padding: 0.5rem 1.2rem;
            font-size: 0.9rem;
            white-space: nowrap;
        }

        /* Hero Section */
        .hero-subpage {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 30%;
            min-height: 420px;
            display: flex;
            align-items: center;
            padding: 7rem 0 4rem;
            overflow: hidden;
        }

        .hero-subpage::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 11, 20, 0.72) 0%, rgba(11, 11, 20, 0.88) 55%, rgba(11, 11, 20, 0.96) 100%);
            z-index: 1;
        }

        .hero-subpage::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 72% 40%, rgba(124, 58, 237, 0.16) 0%, transparent 60%);
            z-index: 1;
            pointer-events: none;
        }

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

        .hero-subpage .hero-breadcrumb {
            font-size: 0.875rem;
            color: var(--text-secondary);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

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

        .hero-subpage .hero-breadcrumb a:hover {
            color: var(--accent-cyan);
        }

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

        .hero-subpage h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
            max-width: 680px;
        }

        .hero-subpage .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 1.8rem;
        }

        .hero-subpage .hero-actions {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
        }

        .hero-side-card {
            background: rgba(18, 18, 30, 0.85);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            box-shadow: var(--shadow-card);
        }

        .hero-side-card .mini-stat {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.55rem 0;
            border-bottom: 1px solid var(--border-divider);
        }

        .hero-side-card .mini-stat:last-child {
            border-bottom: none;
        }

        .hero-side-card .mini-stat .stat-icon {
            width: 38px;
            height: 38px;
            border-radius: 0.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .hero-side-card .mini-stat .stat-icon.purple {
            background: rgba(124, 58, 237, 0.15);
            color: var(--accent-purple);
        }

        .hero-side-card .mini-stat .stat-icon.cyan {
            background: rgba(6, 214, 160, 0.12);
            color: var(--accent-cyan);
        }

        .hero-side-card .mini-stat .stat-icon.orange {
            background: rgba(249, 115, 22, 0.12);
            color: var(--accent-orange);
        }

        .hero-side-card .mini-stat .stat-text {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .hero-side-card .mini-stat .stat-text strong {
            display: block;
            font-size: 1.1rem;
            color: var(--text-white);
            font-weight: 700;
        }

        /* Community Stats */
        .community-stats .stat-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            text-align: center;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .community-stats .stat-card:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-hover);
        }

        .community-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
            line-height: 1.2;
            margin-bottom: 0.25rem;
        }

        .community-stats .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .community-stats .stat-desc {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        /* Team Cards */
        .team-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .team-card:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .team-card .team-banner {
            position: relative;
            height: 140px;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: flex-end;
            padding: 0.75rem;
        }

        .team-card .team-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 11, 20, 0.3) 0%, rgba(11, 11, 20, 0.7) 100%);
            z-index: 1;
        }

        .team-card .team-banner .team-logo-badge {
            position: relative;
            z-index: 2;
            width: 52px;
            height: 52px;
            border-radius: 0.6rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
            letter-spacing: 0.05em;
        }

        .team-card .team-banner .logo-text {
            font-size: 0.7rem;
            text-align: center;
            line-height: 1.2;
        }

        .team-card .team-body {
            padding: 1.25rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .team-card .team-name {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.3rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.5rem;
        }

        .team-card .team-desc {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0.9rem;
            flex-grow: 1;
        }

        .team-card .team-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-wrap: wrap;
            margin-bottom: 0.9rem;
        }

        .team-card .team-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .team-card .team-meta .meta-item i {
            color: var(--accent-cyan);
            font-size: 0.75rem;
        }

        .badge-rank {
            display: inline-block;
            padding: 0.25rem 0.7rem;
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.04em;
        }

        .badge-rank.king {
            background: rgba(249, 115, 22, 0.15);
            color: var(--accent-orange);
            border: 1px solid rgba(249, 115, 22, 0.3);
        }

        .badge-rank.master {
            background: rgba(124, 58, 237, 0.15);
            color: var(--accent-purple);
            border: 1px solid rgba(124, 58, 237, 0.35);
        }

        .badge-rank.diamond {
            background: rgba(6, 214, 160, 0.12);
            color: var(--accent-cyan);
            border: 1px solid rgba(6, 214, 160, 0.3);
        }

        .team-card .btn-sm {
            font-size: 0.85rem;
            padding: 0.45rem 1.1rem;
            width: 100%;
            justify-content: center;
        }

        /* Community Feed */
        .feed-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            display: flex;
            gap: 1.25rem;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            margin-bottom: 1rem;
        }

        .feed-item:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-card);
        }

        .feed-date {
            flex-shrink: 0;
            width: 70px;
            height: 70px;
            border-radius: 0.6rem;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .feed-date .day {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.1;
        }

        .feed-date .month {
            font-size: 0.75rem;
            color: var(--text-muted);
            letter-spacing: 0.05em;
        }

        .feed-content {
            flex-grow: 1;
        }

        .feed-content .feed-tag {
            display: inline-block;
            padding: 0.15rem 0.6rem;
            border-radius: var(--radius-badge);
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(124, 58, 237, 0.12);
            color: var(--accent-purple);
            margin-bottom: 0.4rem;
        }

        .feed-content .feed-tag.cyan {
            background: rgba(6, 214, 160, 0.1);
            color: var(--accent-cyan);
        }

        .feed-content .feed-tag.orange {
            background: rgba(249, 115, 22, 0.1);
            color: var(--accent-orange);
        }

        .feed-content h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }

        .feed-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0.5rem;
        }

        .feed-content .feed-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        /* Steps */
        .step-row {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .step-card {
            flex: 1 1 220px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            text-align: center;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            position: relative;
        }

        .step-card:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-card);
        }

        .step-card .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: rgba(124, 58, 237, 0.15);
            color: var(--accent-purple);
            font-weight: 800;
            font-size: 1.15rem;
            margin-bottom: 0.85rem;
            border: 2px solid rgba(124, 58, 237, 0.3);
        }

        .step-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.4rem;
        }

        .step-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-section .accordion-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 0.5rem;
            margin-bottom: 0.75rem;
            overflow: hidden;
        }

        .faq-section .accordion-button {
            background: var(--bg-secondary);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 1.15rem 1.5rem;
            border: none;
            box-shadow: none;
            border-radius: 0.5rem;
            transition: background var(--transition-base), color var(--transition-base);
        }

        .faq-section .accordion-button:not(.collapsed) {
            background: var(--bg-tertiary);
            color: var(--accent-cyan);
            box-shadow: none;
        }

        .faq-section .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%237C3AED'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }

        .faq-section .accordion-button:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            box-shadow: none;
        }

        .faq-section .accordion-body {
            background: var(--bg-tertiary);
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            padding: 1.15rem 1.5rem;
            border-top: 1px solid var(--border-divider);
        }

        /* Form */
        .form-custom .form-control {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            color: var(--text-primary);
            padding: 0.75rem 1rem;
            font-size: 0.95rem;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

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

        .form-custom .form-control:focus {
            border-color: var(--accent-purple);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
            background: var(--bg-tertiary);
            color: var(--text-primary);
        }

        .form-custom .form-label {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
        }

        .form-custom .form-text {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .cta-wrapper {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2.5rem;
        }

        .cta-wrapper .cta-info h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }

        .cta-wrapper .cta-info p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .cta-wrapper .cta-info .cta-points {
            list-style: none;
            padding: 0;
            margin: 0 0 1.25rem;
        }

        .cta-wrapper .cta-info .cta-points li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding: 0.3rem 0;
        }

        .cta-wrapper .cta-info .cta-points li i {
            color: var(--accent-cyan);
            font-size: 0.85rem;
        }

        /* Footer */
        .footer-section {
            background: #08080F;
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 2rem;
        }

        .footer-brand {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-bottom: 0.75rem;
        }

        .footer-desc {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

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

        .footer-links li {
            margin-bottom: 0.5rem;
        }

        .footer-links a {
            font-size: 0.875rem;
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent-cyan);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-divider);
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
        }

        .footer-bottom .copyright {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom .footer-extras {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-wrap: wrap;
        }

        .footer-bottom .footer-extras a {
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        .footer-bottom .footer-extras a:hover {
            color: var(--accent-cyan);
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .navbar-custom {
                padding: 0.5rem 0;
            }
            .navbar-collapse {
                background: rgba(11, 11, 20, 0.98);
                border-radius: 0.6rem;
                padding: 1rem;
                margin-top: 0.5rem;
                border: 1px solid var(--border-color);
            }
            .navbar-nav .nav-link {
                padding: 0.5rem 0.25rem !important;
                border-bottom: none;
            }
            .navbar-nav .nav-link.active {
                border-bottom: none;
                color: var(--accent-cyan);
            }
            .navbar-custom .d-flex.gap-2 {
                flex-wrap: wrap;
                margin-top: 0.75rem;
            }
            .hero-subpage {
                min-height: auto;
                padding: 5.5rem 0 3rem;
            }
            .hero-subpage h1 {
                font-size: 2rem;
            }
            .hero-side-card {
                margin-top: 1.5rem;
            }
            .section-padding {
                padding: 3.5rem 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .team-card .team-banner {
                height: 110px;
            }
        }

        @media (max-width: 767.98px) {
            .community-stats .stat-number {
                font-size: 1.5rem;
            }
            .feed-item {
                flex-direction: column;
                gap: 0.75rem;
                padding: 1.25rem;
            }
            .feed-date {
                width: auto;
                height: auto;
                flex-direction: row;
                gap: 0.5rem;
                padding: 0.5rem 0.8rem;
                justify-content: flex-start;
                align-items: baseline;
            }
            .feed-date .day {
                font-size: 1.2rem;
            }
            .feed-date .month {
                font-size: 0.7rem;
            }
            .step-card {
                flex-basis: 100%;
            }
            .cta-wrapper {
                padding: 1.75rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
        }

        @media (max-width: 575.98px) {
            .hero-subpage h1 {
                font-size: 1.6rem;
            }
            .hero-subpage .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-subpage .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .community-stats .stat-card {
                padding: 1rem;
            }
            .navbar-brand {
                font-size: 0.95rem;
            }
            .brand-icon {
                width: 28px;
                height: 28px;
                font-size: 0.7rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0B0B14;
            --bg-secondary: #12121E;
            --bg-tertiary: #0E0E1A;
            --accent-purple: #7C3AED;
            --accent-purple-hover: #6D28D9;
            --accent-cyan: #06D6A0;
            --accent-orange: #F97316;
            --text-primary: #F2F0F7;
            --text-secondary: #B8B6C9;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --border-color: #27273A;
            --border-divider: #1E1E30;
            --radius-card: 0.75rem;
            --radius-btn: 0.5rem;
            --radius-badge: 2rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 32px rgba(124, 58, 237, 0.35);
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', '微软雅黑', 'Inter', 'Roboto Mono', 'DIN', sans-serif;
            --font-mono: 'Roboto Mono', 'DIN', 'Inter', monospace;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --gradient-main: linear-gradient(135deg, #7C3AED 0%, #06D6A0 100%);
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--accent-cyan);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }

        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .section-padding {
            padding: 5rem 0;
        }

        .section-padding-sm {
            padding: 3.5rem 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
            border-left: 3px solid var(--accent-purple);
            padding-left: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 2.5rem;
            max-width: 720px;
        }

        .btn-custom-primary {
            background-color: var(--accent-purple);
            color: var(--text-white);
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            font-size: 1rem;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
            cursor: pointer;
        }

        .btn-custom-primary:hover {
            background-color: var(--accent-purple-hover);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
        }

        .btn-custom-primary:active {
            background-color: var(--accent-purple);
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-custom-primary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            box-shadow: none;
        }

        .btn-custom-secondary {
            background-color: transparent;
            color: var(--text-primary);
            border: 1px solid #3A3A52;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 1rem;
            transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base), transform var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
            cursor: pointer;
        }

        .btn-custom-secondary:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background-color: rgba(6, 214, 160, 0.08);
            transform: translateY(-2px);
        }

        .btn-custom-secondary:active {
            border-color: #3A3A52;
            color: var(--text-primary);
            background-color: transparent;
            transform: translateY(0);
        }

        .btn-custom-secondary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .btn-link-custom {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: color var(--transition-base);
            background: none;
            border: none;
            cursor: pointer;
        }

        .btn-link-custom:hover {
            color: var(--accent-cyan);
            text-decoration: underline;
        }

        /* 导航样式 */
        .navbar-custom {
            background-color: rgba(11, 11, 20, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
            transition: background-color var(--transition-base), border-color var(--transition-base);
            border-bottom: 1px solid transparent;
        }

        .navbar-custom.scrolled {
            background-color: rgba(11, 11, 20, 0.95);
            border-bottom-color: var(--border-color);
        }

        .navbar-custom .navbar-brand {
            color: var(--text-white);
            font-weight: 800;
            font-size: 1.05rem;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            letter-spacing: 0.01em;
        }

        .navbar-custom .navbar-brand:hover {
            color: var(--accent-cyan);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: var(--gradient-main);
            border-radius: 0.4rem;
            font-size: 0.85rem;
            color: #fff;
        }

        .navbar-custom .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.92rem;
            padding: 0.5rem 1rem;
            position: relative;
            transition: color var(--transition-base);
            letter-spacing: 0.01em;
        }

        .navbar-custom .navbar-nav .nav-link:hover {
            color: var(--text-primary);
        }

        .navbar-custom .navbar-nav .nav-link.active {
            color: var(--accent-cyan);
        }

        .navbar-custom .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background-color: var(--accent-cyan);
            border-radius: 1px;
        }

        .navbar-toggler {
            border-color: var(--border-color);
            padding: 0.4rem 0.65rem;
        }

        .navbar-toggler:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            box-shadow: none;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23F2F0F7' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Hero */
        .hero-ranking {
            padding: 6rem 0 4.5rem;
            background-color: var(--bg-primary);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-divider);
        }

        .hero-ranking::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, rgba(124, 58, 237, 0) 70%);
            pointer-events: none;
        }

        .hero-ranking .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            min-height: 320px;
        }

        .hero-ranking .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
        }

        .hero-ranking .hero-image-wrap::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(to top, rgba(11, 11, 20, 0.85), transparent);
            pointer-events: none;
        }

        .hero-ranking h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            letter-spacing: -0.01em;
            margin-bottom: 1.25rem;
        }

        .hero-ranking h1 .highlight {
            background: var(--gradient-main);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-ranking .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 2rem;
            max-width: 520px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(6, 214, 160, 0.1);
            border: 1px solid rgba(6, 214, 160, 0.25);
            color: var(--accent-cyan);
            padding: 0.35rem 0.9rem;
            border-radius: var(--radius-badge);
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
        }

        /* 数据统计卡片 */
        .stat-card-mini {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
        }

        .stat-card-mini:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-purple);
        }

        .stat-card-mini .stat-value {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
            letter-spacing: 0.01em;
            line-height: 1.2;
            margin-bottom: 0.5rem;
        }

        .stat-card-mini .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .stat-card-mini .stat-trend {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 0.4rem;
        }

        /* 排行榜区域 */
        .ranking-section {
            background-color: var(--bg-primary);
        }

        .ranking-tabs .nav-pills .nav-link {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.6rem 1.4rem;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
            transition: all var(--transition-base);
        }

        .ranking-tabs .nav-pills .nav-link:hover {
            color: var(--text-primary);
            border-color: var(--accent-purple);
        }

        .ranking-tabs .nav-pills .nav-link.active {
            background: var(--accent-purple);
            color: var(--text-white);
            border-color: var(--accent-purple);
            box-shadow: 0 4px 16px rgba(124, 58, 237, 0.3);
        }

        .ranking-tabs .nav-pills .nav-link:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .ranking-list {
            margin-top: 2rem;
        }

        .ranking-row {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem 1.25rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            background: var(--bg-secondary);
            margin-bottom: 0.75rem;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            position: relative;
        }

        .ranking-row:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-card);
            border-color: var(--accent-purple);
        }

        .ranking-row.top-1 {
            background: rgba(250, 204, 21, 0.06);
            border-color: rgba(250, 204, 21, 0.3);
        }

        .ranking-row.top-2 {
            background: rgba(200, 200, 210, 0.05);
            border-color: rgba(200, 200, 210, 0.25);
        }

        .ranking-row.top-3 {
            background: rgba(249, 115, 22, 0.06);
            border-color: rgba(249, 115, 22, 0.28);
        }

        .ranking-position {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
            font-family: var(--font-mono);
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
        }

        .ranking-row.top-1 .ranking-position {
            background: rgba(250, 204, 21, 0.15);
            border-color: rgba(250, 204, 21, 0.4);
            color: #FACC15;
        }

        .ranking-row.top-2 .ranking-position {
            background: rgba(200, 200, 210, 0.12);
            border-color: rgba(200, 200, 210, 0.35);
            color: #C8C8D2;
        }

        .ranking-row.top-3 .ranking-position {
            background: rgba(249, 115, 22, 0.14);
            border-color: rgba(249, 115, 22, 0.38);
            color: var(--accent-orange);
        }

        .ranking-player-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-player-info .player-name {
            font-weight: 700;
            color: var(--text-white);
            font-size: 1rem;
            letter-spacing: 0.01em;
            margin-bottom: 0.15rem;
        }

        .ranking-player-info .player-team {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .ranking-stats {
            display: flex;
            gap: 1.25rem;
            flex-shrink: 0;
            align-items: center;
        }

        .ranking-stat-item {
            text-align: center;
            min-width: 60px;
        }

        .ranking-stat-item .rs-value {
            font-weight: 700;
            font-family: var(--font-mono);
            font-size: 0.95rem;
            color: var(--text-primary);
        }

        .ranking-stat-item .rs-label {
            font-size: 0.7rem;
            color: var(--text-muted);
            margin-top: 0.15rem;
        }

        .ranking-badge {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: var(--radius-badge);
            display: inline-block;
        }

        .badge-cyan {
            background: rgba(6, 214, 160, 0.15);
            color: var(--accent-cyan);
            border: 1px solid rgba(6, 214, 160, 0.3);
        }

        .badge-purple {
            background: rgba(124, 58, 237, 0.15);
            color: #A78BFA;
            border: 1px solid rgba(124, 58, 237, 0.35);
        }

        .badge-orange {
            background: rgba(249, 115, 22, 0.15);
            color: var(--accent-orange);
            border: 1px solid rgba(249, 115, 22, 0.3);
        }

        /* CTA 查询区域 */
        .cta-query {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2.5rem;
            position: relative;
            overflow: hidden;
        }

        .cta-query::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-query h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.75rem;
            position: relative;
            z-index: 1;
        }

        .cta-query p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
            position: relative;
            z-index: 1;
        }

        .cta-query .form-control {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            border-radius: var(--radius-btn);
            padding: 0.75rem 1rem;
            font-size: 0.95rem;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            position: relative;
            z-index: 1;
        }

        .cta-query .form-control:focus {
            border-color: var(--accent-purple);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.25);
            outline: none;
        }

        /* 排名规则卡片 */
        .rule-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            height: 100%;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .rule-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-purple);
        }

        .rule-card .rule-icon {
            width: 48px;
            height: 48px;
            border-radius: 0.65rem;
            background: rgba(124, 58, 237, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--accent-purple);
            margin-bottom: 1rem;
        }

        .rule-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.6rem;
        }

        .rule-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* FAQ 手风琴 */
        .accordion-custom .accordion-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card) !important;
            margin-bottom: 0.75rem;
            overflow: hidden;
        }

        .accordion-custom .accordion-header .accordion-button {
            background: var(--bg-secondary);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 1.15rem 1.5rem;
            border: none;
            box-shadow: none;
            transition: background-color var(--transition-base), color var(--transition-base);
        }

        .accordion-custom .accordion-header .accordion-button:not(.collapsed) {
            background: var(--bg-tertiary);
            color: var(--accent-cyan);
            box-shadow: none;
        }

        .accordion-custom .accordion-header .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%237C3AED'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            width: 1.25rem;
            height: 1.25rem;
            background-size: 1.25rem;
        }

        .accordion-custom .accordion-header .accordion-button:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            box-shadow: none;
        }

        .accordion-custom .accordion-body {
            background: var(--bg-tertiary);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            padding: 1.25rem 1.5rem;
        }

        /* 页脚 */
        .footer-section {
            background: #08080F;
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 2rem;
        }

        .footer-brand {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-bottom: 0.75rem;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

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

        .footer-links li {
            margin-bottom: 0.5rem;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent-cyan);
        }

        .footer-bottom {
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-divider);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

        .copyright {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .footer-bottom-links {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            align-items: center;
        }

        .footer-bottom-links a {
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        .footer-bottom-links a:hover {
            color: var(--accent-cyan);
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            .hero-ranking {
                padding: 4rem 0 3rem;
            }

            .hero-ranking h1 {
                font-size: 2rem;
            }

            .hero-ranking .hero-image-wrap {
                min-height: 240px;
                margin-top: 2rem;
            }

            .hero-ranking .hero-image-wrap img {
                min-height: 240px;
            }

            .ranking-row {
                flex-wrap: wrap;
                gap: 0.75rem;
                padding: 0.9rem 1rem;
            }

            .ranking-stats {
                width: 100%;
                justify-content: flex-end;
                gap: 1rem;
                flex-wrap: wrap;
            }
        }

        @media (max-width: 767.98px) {
            .section-padding {
                padding: 3.5rem 0;
            }

            .section-padding-sm {
                padding: 2.5rem 0;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .hero-ranking {
                padding: 3rem 0 2.5rem;
            }

            .hero-ranking h1 {
                font-size: 1.7rem;
            }

            .hero-ranking .hero-subtitle {
                font-size: 0.95rem;
            }

            .ranking-row {
                flex-direction: column;
                align-items: flex-start;
            }

            .ranking-stats {
                width: 100%;
                justify-content: space-between;
            }

            .cta-query {
                padding: 1.5rem;
            }

            .cta-query h3 {
                font-size: 1.25rem;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .hero-ranking h1 {
                font-size: 1.45rem;
            }

            .stat-card-mini .stat-value {
                font-size: 1.35rem;
            }

            .ranking-tabs .nav-pills .nav-link {
                font-size: 0.8rem;
                padding: 0.45rem 1rem;
            }

            .ranking-position {
                width: 38px;
                height: 38px;
                font-size: 0.9rem;
            }

            .ranking-stat-item {
                min-width: 48px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-primary: #0B0B14;
            --bg-secondary: #12121E;
            --bg-tertiary: #0E0E1A;
            --accent-purple: #7C3AED;
            --accent-purple-hover: #6D28D9;
            --accent-cyan: #06D6A0;
            --accent-orange: #F97316;
            --text-primary: #F2F0F7;
            --text-secondary: #B8B6C9;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --border-color: #27273A;
            --border-divider: #1E1E30;
            --radius-card: 0.75rem;
            --radius-btn: 0.5rem;
            --radius-badge: 2rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 32px rgba(124, 58, 237, 0.35);
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', '微软雅黑', 'Inter', 'Roboto Mono', 'DIN', sans-serif;
            --font-mono: 'Roboto Mono', 'DIN', 'Inter', monospace;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --gradient-main: linear-gradient(135deg, #7C3AED 0%, #06D6A0 100%);
        }
        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--accent-cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }
        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section-padding {
            padding: 5rem 0;
        }
        .section-padding-sm {
            padding: 3.5rem 0;
        }
        .section-label {
            display: inline-block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
            border-left: 3px solid var(--accent-purple);
            padding-left: 0.75rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 2.5rem;
            max-width: 720px;
        }
        .btn-custom-primary {
            background-color: var(--accent-purple);
            color: var(--text-white);
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            font-size: 1rem;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
        }
        .btn-custom-primary:hover {
            background-color: var(--accent-purple-hover);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
        }
        .btn-custom-primary:active {
            background-color: var(--accent-purple);
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-custom-primary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            box-shadow: none;
        }
        .btn-custom-secondary {
            background-color: transparent;
            color: var(--text-primary);
            border: 1px solid #3A3A52;
            border-radius: var(--radius-btn);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 1rem;
            transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base), transform var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
        }
        .btn-custom-secondary:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background-color: rgba(6, 214, 160, 0.08);
            transform: translateY(-2px);
        }
        .btn-custom-secondary:active {
            border-color: #3A3A52;
            color: var(--text-primary);
            background-color: transparent;
            transform: translateY(0);
        }
        .btn-custom-secondary:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }
        .btn-link-custom {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: color var(--transition-base);
            background: none;
            border: none;
            cursor: pointer;
        }
        .btn-link-custom:hover {
            color: var(--accent-cyan);
            text-decoration: underline;
        }
        .btn-link-custom .arrow {
            transition: transform var(--transition-base);
        }
        .btn-link-custom:hover .arrow {
            transform: translateX(4px);
        }

        /* 导航栏 */
        .navbar-custom {
            background-color: rgba(11, 11, 20, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 0.75rem 0;
            transition: background-color 0.3s ease, box-shadow 0.3s ease;
            border-bottom: 1px solid transparent;
            min-height: 68px;
        }
        .navbar-custom.scrolled {
            background-color: rgba(11, 11, 20, 0.95);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .navbar-custom .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.01em;
        }
        .navbar-custom .navbar-brand:hover {
            color: var(--text-white);
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--gradient-main);
            border-radius: 0.4rem;
            font-size: 0.85rem;
            color: #fff;
        }
        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.5rem 0.9rem;
            position: relative;
            transition: color var(--transition-base);
        }
        .navbar-custom .nav-link:hover {
            color: var(--text-white);
        }
        .navbar-custom .nav-link.active {
            color: var(--accent-cyan);
        }
        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background-color: var(--accent-cyan);
            border-radius: 2px;
        }
        .navbar-toggler {
            border-color: var(--border-color);
            outline: none;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-cyan);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23F2F0F7' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Hero支持中心 */
        .support-hero {
            position: relative;
            padding: 6rem 0 5rem;
            background-color: var(--bg-primary);
            background-image: linear-gradient(135deg, rgba(124, 58, 237, 0.12) 0%, rgba(6, 214, 160, 0.06) 100%);
            border-bottom: 1px solid var(--border-divider);
            overflow: hidden;
        }
        .support-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
            mask-image: linear-gradient(to left, rgba(0,0,0,0.8), transparent);
            -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.8), transparent);
        }
        .support-hero .container {
            position: relative;
            z-index: 1;
        }
        .support-hero h1 {
            font-size: 2.75rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            margin-bottom: 1.25rem;
            letter-spacing: -0.01em;
            max-width: 600px;
        }
        .support-hero h1 .highlight {
            background: var(--gradient-main);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .support-hero .lead-text {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 550px;
            margin-bottom: 2rem;
        }
        .support-hero .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .support-hero .hero-stats {
            display: flex;
            gap: 2rem;
            margin-top: 2.5rem;
            flex-wrap: wrap;
        }
        .support-hero .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .support-hero .hero-stat .stat-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
        }
        .support-hero .hero-stat .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 0.2rem;
        }

        /* 帮助分类卡片 */
        .help-category-card {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2rem;
            height: 100%;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .help-category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--gradient-main);
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .help-category-card:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .help-category-card:hover::before {
            opacity: 1;
        }
        .help-category-card .icon-wrap {
            width: 52px;
            height: 52px;
            background-color: rgba(124, 58, 237, 0.15);
            border-radius: 0.6rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-purple);
            font-size: 1.3rem;
            margin-bottom: 1.25rem;
            transition: background-color var(--transition-base), color var(--transition-base);
        }
        .help-category-card:hover .icon-wrap {
            background-color: var(--accent-purple);
            color: #fff;
        }
        .help-category-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.75rem;
            letter-spacing: 0;
        }
        .help-category-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 1.25rem;
        }
        .help-category-card .help-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .help-category-card .help-tag {
            display: inline-block;
            padding: 0.25rem 0.8rem;
            background-color: rgba(6, 214, 160, 0.08);
            color: var(--accent-cyan);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            font-weight: 500;
            border: 1px solid rgba(6, 214, 160, 0.2);
        }

        /* 图文步骤区块 */
        .steps-section {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-divider);
            border-bottom: 1px solid var(--border-divider);
        }
        .step-item {
            display: flex;
            gap: 1.5rem;
            margin-bottom: 2.5rem;
            align-items: flex-start;
        }
        .step-item:last-child {
            margin-bottom: 0;
        }
        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: rgba(124, 58, 237, 0.15);
            color: var(--accent-purple);
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid rgba(124, 58, 237, 0.3);
            font-family: var(--font-mono);
        }
        .step-item .step-content h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 0.5rem;
        }
        .step-item .step-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }
        .step-item .step-content .step-detail {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .step-item .step-content .step-detail i {
            color: var(--accent-cyan);
            font-size: 0.8rem;
        }
        .step-visual {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }
        .step-visual img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }
        .step-visual .visual-caption {
            background-color: var(--bg-tertiary);
            padding: 0.75rem 1rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .step-visual .visual-caption i {
            color: var(--accent-purple);
        }

        /* 联系支持表单 + FAQ */
        .support-form-section {
            background-color: var(--bg-primary);
        }
        .support-form-wrapper {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2.5rem;
            height: 100%;
        }
        .support-form-wrapper .form-label {
            color: var(--text-primary);
            font-weight: 500;
            font-size: 0.9rem;
            margin-bottom: 0.4rem;
        }
        .support-form-wrapper .form-control {
            background-color: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            color: var(--text-primary);
            padding: 0.75rem 1rem;
            font-size: 0.95rem;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .support-form-wrapper .form-control::placeholder {
            color: var(--text-muted);
        }
        .support-form-wrapper .form-control:focus {
            border-color: var(--accent-purple);
            box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.25);
            background-color: var(--bg-tertiary);
            color: var(--text-primary);
        }
        .support-form-wrapper textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }
        .support-form-wrapper .form-text {
            color: var(--text-muted);
            font-size: 0.75rem;
        }
        .support-form-wrapper .form-check-input {
            background-color: var(--bg-tertiary);
            border-color: var(--border-color);
            accent-color: var(--accent-purple);
        }
        .support-form-wrapper .form-check-input:checked {
            background-color: var(--accent-purple);
            border-color: var(--accent-purple);
        }
        .support-form-wrapper .form-check-label {
            color: var(--text-secondary);
            font-size: 0.85rem;
        }
        .support-form-wrapper .submit-btn {
            width: 100%;
            justify-content: center;
            padding: 0.85rem 2rem;
            font-size: 1rem;
        }

        /* FAQ手风琴 */
        .support-faq-wrapper {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2.5rem;
            height: 100%;
        }
        .accordion-custom .accordion-item {
            background-color: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn) !important;
            margin-bottom: 0.5rem;
            overflow: hidden;
        }
        .accordion-custom .accordion-item:last-child {
            margin-bottom: 0;
        }
        .accordion-custom .accordion-header {
            margin: 0;
        }
        .accordion-custom .accordion-button {
            background-color: var(--bg-tertiary);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 1rem 1.25rem;
            border: none;
            border-radius: 0 !important;
            box-shadow: none;
            transition: background-color var(--transition-base), color var(--transition-base);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background-color: rgba(124, 58, 237, 0.1);
            color: var(--accent-purple);
            box-shadow: none;
        }
        .accordion-custom .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%237C3AED' stroke-linecap='round' stroke-linejoin='round'%3e%3cpath d='M2 5L8 11L14 5'/%3e%3c/svg%3e");
            transition: transform 0.3s ease;
        }
        .accordion-custom .accordion-button:not(.collapsed)::after {
            transform: rotate(-180deg);
        }
        .accordion-custom .accordion-button:focus {
            outline: none;
            box-shadow: none;
            border-color: var(--accent-cyan);
        }
        .accordion-custom .accordion-body {
            background-color: var(--bg-primary);
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.75;
            padding: 1.25rem;
        }

        /* 页脚 */
        .footer-section {
            background-color: #08080F;
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 2rem;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        .footer-brand .brand-icon-sm {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: var(--gradient-main);
            border-radius: 0.4rem;
            font-size: 0.75rem;
            color: #fff;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 240px;
            margin-bottom: 0;
        }
        .footer-heading {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-divider);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        .copyright {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem;
        }
        .copyright a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .copyright a:hover {
            color: var(--accent-cyan);
        }
        .footer-sep {
            color: var(--border-color);
            margin: 0 0.5rem;
        }

        /* 响应式 */
        @media (max-width: 992px) {
            .support-hero h1 {
                font-size: 2.2rem;
            }
            .support-hero .lead-text {
                font-size: 1rem;
            }
            .step-item {
                gap: 1rem;
            }
            .step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 3.5rem 0;
            }
            .section-padding-sm {
                padding: 2.5rem 0;
            }
            .support-hero {
                padding: 4rem 0 3rem;
            }
            .support-hero::before {
                width: 100%;
                height: 40%;
                top: auto;
                bottom: 0;
                mask-image: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
                -webkit-mask-image: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
            }
            .support-hero h1 {
                font-size: 1.8rem;
            }
            .support-hero .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .support-hero .hero-stats {
                gap: 1.5rem;
                margin-top: 2rem;
            }
            .help-category-card {
                padding: 1.5rem;
            }
            .step-item {
                flex-direction: column;
            }
            .step-visual img {
                height: 200px;
            }
            .support-form-wrapper,
            .support-faq-wrapper {
                padding: 1.75rem;
            }
            .navbar-custom .navbar-nav {
                padding: 1rem 0;
            }
            .navbar-custom .nav-link {
                padding: 0.6rem 0;
                border-bottom: 1px solid var(--border-divider);
            }
            .navbar-custom .nav-link:last-child {
                border-bottom: none;
            }
            .navbar-custom .nav-link.active::after {
                display: none;
            }
            .navbar-custom .d-flex.gap-2 {
                padding: 0.75rem 0 0.5rem;
            }
        }
        @media (max-width: 576px) {
            .support-hero h1 {
                font-size: 1.6rem;
            }
            .support-hero .hero-stats {
                flex-direction: column;
                gap: 0.75rem;
            }
            .support-hero .hero-stat {
                flex-direction: row;
                align-items: center;
                gap: 0.75rem;
            }
            .support-hero .hero-stat .stat-num {
                font-size: 1.3rem;
            }
            .support-form-wrapper,
            .support-faq-wrapper {
                padding: 1.25rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }
            .copyright {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.4rem;
            }
            .footer-sep {
                display: none;
            }
        }
        @media (min-width: 1200px) {
            .container {
                max-width: 1140px;
            }
        }