/* roulang page: index */
:root {
            --bg-primary: #0B1526;
            --bg-secondary: #0F1D33;
            --bg-tertiary: #132744;
            --brand-blue: #1D6FF2;
            --brand-cyan: #00E5A0;
            --brand-gold: #F5B54D;
            --text-primary: rgba(255, 255, 255, 0.85);
            --text-secondary: rgba(255, 255, 255, 0.55);
            --text-tertiary: rgba(255, 255, 255, 0.3);
            --border-glass: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.15);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-pill: 50px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.28);
            --shadow-hover: 0 16px 48px rgba(29, 111, 242, 0.18);
            --shadow-cyan: 0 0 24px rgba(0, 229, 160, 0.35);
            --shadow-cyan-hover: 0 0 40px rgba(0, 229, 160, 0.55);
            --transition-base: 0.3s ease;
            --font-body: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
            --font-digit: "DIN Alternate", "Bebas Neue", "Arial Narrow", sans-serif;
            --container-max: 1320px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
        }

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

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

        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .skip-link {
            position: absolute;
            left: -9999px;
            top: 0;
            z-index: 9999;
            background: var(--brand-cyan);
            color: #06281F;
            padding: 10px 20px;
            border-radius: 0 0 10px 0;
            font-weight: 700;
        }

        .skip-link:focus {
            left: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            border: 1px solid transparent;
            transition: all var(--transition-base);
            cursor: pointer;
            min-height: 48px;
        }

        .btn:focus-visible,
        .form-control:focus-visible,
        .form-select:focus-visible {
            outline: 2px solid var(--brand-cyan);
            outline-offset: 2px;
            box-shadow: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, #00E5A0 0%, #00B4D8 100%);
            color: #06281F;
            box-shadow: var(--shadow-cyan);
            border: none;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            color: #06281F;
            background: linear-gradient(135deg, #00F0AC 0%, #00C6E0 100%);
            box-shadow: var(--shadow-cyan-hover);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            color: var(--text-primary);
            backdrop-filter: blur(10px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 14px 36px;
            font-size: 16px;
            min-height: 52px;
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
            min-height: 40px;
        }

        .btn-submit {
            width: 100%;
            background: linear-gradient(135deg, #00E5A0 0%, #00B4D8 100%);
            color: #06281F;
            border: none;
            padding: 14px 28px;
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-cyan);
            transition: all var(--transition-base);
        }

        .btn-submit:hover {
            background: linear-gradient(135deg, #00F0AC 0%, #00C6E0 100%);
            box-shadow: var(--shadow-cyan-hover);
            transform: translateY(-2px);
        }

        .section {
            padding: 96px 0;
            position: relative;
        }

        .section-head {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(245, 181, 77, 0.1);
            color: var(--brand-gold);
            border: 1px solid rgba(245, 181, 77, 0.3);
            padding: 4px 18px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 520px;
            margin: 0 auto;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            background: rgba(11, 21, 38, 0.82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-glass);
            display: none;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

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

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-gold) 0%, var(--brand-cyan) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #06281F;
            font-size: 16px;
            box-shadow: 0 0 16px rgba(0, 229, 160, 0.25);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.2px;
            white-space: nowrap;
        }

        .brand-text b {
            color: var(--brand-blue);
            font-weight: 800;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            position: relative;
            padding: 10px 18px;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            transition: color var(--transition-base);
        }

        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--brand-cyan);
            transition: transform var(--transition-base);
        }

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

        .nav-link:hover::after {
            transform: translateX(-50%) scaleX(1);
        }

        .nav-link.active {
            color: var(--text-primary);
        }

        .nav-link.active::after {
            transform: translateX(-50%) scaleX(1);
            background: var(--brand-cyan);
        }

        .header-cta {
            flex-shrink: 0;
        }

        .hero {
            position: relative;
            min-height: 80vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: linear-gradient(135deg, rgba(7, 14, 28, 0.78) 0%, rgba(11, 21, 38, 0.45) 55%, rgba(11, 21, 38, 0.28) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
            padding-top: 72px;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(29, 111, 242, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 24px;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(7, 14, 28, 0.55);
            color: var(--brand-gold);
            border: 1px solid rgba(245, 181, 77, 0.45);
            padding: 6px 22px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            text-align: center;
            backdrop-filter: blur(8px);
            margin-bottom: 28px;
        }

        .hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .hero-subtitle {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-scroll {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            z-index: 2;
        }

        .hero-scroll span {
            font-size: 10px;
            letter-spacing: 3px;
            color: var(--text-tertiary);
            font-family: var(--font-digit);
        }

        .scroll-arrow {
            width: 22px;
            height: 36px;
            border: 1px solid var(--border-light);
            border-radius: 12px;
            display: flex;
            align-items: flex-start;
            justify-content: center;
            padding-top: 6px;
            position: relative;
        }

        .scroll-arrow::before {
            content: "";
            width: 4px;
            height: 8px;
            background: var(--brand-cyan);
            border-radius: 4px;
            animation: scrollPulse 1.6s ease-in-out infinite;
        }

        @keyframes scrollPulse {
            0% {
                transform: translateY(0);
                opacity: 1;
            }
            100% {
                transform: translateY(12px);
                opacity: 0;
            }
        }

        .stats-section {
            position: relative;
            z-index: 3;
            margin-top: -56px;
            padding-bottom: 40px;
        }

        .stats-row {
            gap: 0;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-card);
            padding: 28px 20px;
            text-align: center;
            margin-bottom: 16px;
            box-shadow: var(--shadow-card);
            height: 100%;
            transition: all var(--transition-base);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 255, 255, 0.18);
        }

        .stat-num {
            font-family: var(--font-digit);
            font-size: 48px;
            font-weight: 700;
            color: var(--brand-gold);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .schedule-section {
            background: var(--bg-primary);
        }

        .schedule-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-glass);
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-card);
            padding: 24px;
            height: 100%;
            position: relative;
            transition: all var(--transition-base);
        }

        .schedule-item:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.18);
            box-shadow: var(--shadow-hover);
        }

        .schedule-date {
            font-family: var(--font-digit);
            font-size: 18px;
            color: var(--brand-gold);
            font-weight: 700;
            margin-bottom: 10px;
        }

        .schedule-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .schedule-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .schedule-status {
            display: inline-block;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
        }

        .status-done {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .status-open {
            background: rgba(0, 229, 160, 0.1);
            color: var(--brand-cyan);
            border: 1px solid rgba(0, 229, 160, 0.3);
        }

        .status-soon {
            background: rgba(245, 181, 77, 0.1);
            color: var(--brand-gold);
            border: 1px solid rgba(245, 181, 77, 0.3);
        }

        .highlight-section {
            background: var(--bg-secondary);
        }

        .highlight-row {
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: 64px;
        }

        .highlight-row:last-child {
            margin-bottom: 0;
        }

        .highlight-row.reverse {
            flex-direction: row-reverse;
        }

        .highlight-media {
            flex: 0 0 46%;
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .highlight-media img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .highlight-media:hover img {
            transform: scale(1.03);
        }

        .highlight-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(7, 14, 28, 0.55) 100%);
            pointer-events: none;
        }

        .highlight-text {
            flex: 1;
        }

        .highlight-num {
            font-family: var(--font-digit);
            font-size: 48px;
            font-weight: 700;
            color: var(--brand-cyan);
            opacity: 0.8;
            display: block;
            line-height: 1;
            margin-bottom: 12px;
        }

        .highlight-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .highlight-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 480px;
        }

        .tickets-section {
            background: var(--bg-primary);
        }

        .tickets-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-glass);
            background: rgba(255, 255, 255, 0.03);
            min-width: 600px;
        }

        .tickets-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .tickets-table th,
        .tickets-table td {
            padding: 18px 20px;
            text-align: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 14px;
            vertical-align: middle;
        }

        .tickets-table thead th {
            background: rgba(255, 255, 255, 0.03);
            font-weight: 600;
            color: var(--text-primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 15px;
            line-height: 1.6;
        }

        .tickets-table thead th .ticket-price {
            font-family: var(--font-digit);
            font-size: 22px;
            font-weight: 700;
            color: var(--brand-gold);
            display: block;
            margin-top: 4px;
        }

        .tickets-table .th-label {
            text-align: left;
            min-width: 160px;
        }

        .tickets-table .vip-col {
            background: rgba(29, 111, 242, 0.08);
            border-left: 1px solid rgba(29, 111, 242, 0.2);
            border-right: 1px solid rgba(29, 111, 242, 0.2);
            position: relative;
        }

        .tickets-table .vip-col:hover {
            background: rgba(29, 111, 242, 0.13);
        }

        .recommend-badge {
            display: inline-block;
            background: var(--brand-gold);
            color: #0B1526;
            font-size: 11px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            position: absolute;
            top: -10px;
            right: 50%;
            transform: translateX(50%);
            white-space: nowrap;
        }

        .tickets-table .fa-check {
            color: var(--brand-cyan);
        }

        .tickets-table .fa-xmark {
            color: rgba(255, 255, 255, 0.3);
        }

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

        .tickets-table tbody tr:hover td {
            background: rgba(255, 255, 255, 0.03);
        }

        .tickets-table tbody tr:hover .vip-col {
            background: rgba(29, 111, 242, 0.13);
        }

        .ticket-note {
            text-align: center;
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 16px;
        }

        .register-section {
            background-image: linear-gradient(rgba(15, 29, 51, 0.92), rgba(11, 21, 38, 0.96)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .register-glow {
            position: absolute;
            top: 50%;
            right: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 160, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .register-inner {
            position: relative;
            z-index: 2;
        }

        .register-text {
            padding-right: 24px;
        }

        .register-text h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .register-text p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .register-form-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }

        .form-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            font-weight: 500;
            margin-bottom: 6px;
        }

        .form-control,
        .form-select {
            background-color: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-btn);
            color: var(--text-primary);
            height: 48px;
            padding: 10px 16px;
            font-size: 15px;
            transition: all var(--transition-base);
        }

        .form-control::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }

        .form-control:focus,
        .form-select:focus {
            background-color: rgba(255, 255, 255, 0.08);
            border-color: var(--brand-cyan);
            color: var(--text-primary);
            box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.15);
        }

        .form-select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(255,255,255,0.6)' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            padding-right: 40px;
            cursor: pointer;
        }

        .form-select option {
            background: var(--bg-secondary);
            color: var(--text-primary);
        }

        .form-privacy {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
            text-align: center;
            margin-top: 12px;
            margin-bottom: 0;
        }

        .form-success {
            display: none;
            background: rgba(0, 229, 160, 0.08);
            border: 1px solid rgba(0, 229, 160, 0.3);
            border-radius: var(--radius-btn);
            padding: 20px;
            margin-top: 16px;
            text-align: center;
        }

        .form-success i {
            font-size: 32px;
            color: var(--brand-cyan);
            margin-bottom: 8px;
            display: block;
        }

        .form-success p {
            color: var(--brand-cyan);
            font-size: 14px;
            margin: 0;
        }

        .register-form.is-success .register-fields {
            display: none;
        }

        .register-form.is-success .form-success {
            display: block;
        }

        .news-section {
            background: var(--bg-primary);
        }

        .news-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .news-card {
            display: flex;
            align-items: center;
            gap: 20px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            padding: 16px;
            margin-bottom: 10px;
            transition: all var(--transition-base);
        }

        .news-card:last-child {
            margin-bottom: 0;
        }

        .news-card:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .news-thumb {
            flex-shrink: 0;
            width: 120px;
            height: 80px;
            border-radius: 12px;
            overflow: hidden;
            background: var(--bg-tertiary);
        }

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

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-badge {
            display: inline-block;
            background: rgba(245, 181, 77, 0.12);
            color: var(--brand-gold);
            border: 1px solid rgba(245, 181, 77, 0.3);
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 500;
            margin-bottom: 6px;
        }

        .news-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-excerpt {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-tertiary);
        }

        .news-more {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-base);
        }

        .news-card:hover .news-more {
            color: var(--brand-cyan);
        }

        .news-empty {
            height: 180px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
            border: 2px dashed rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            color: var(--text-tertiary);
            font-size: 14px;
        }

        .news-empty i {
            font-size: 32px;
            opacity: 0.5;
        }

        .faq-section {
            background: var(--bg-secondary);
        }

        .faq-accordion {
            max-width: 760px;
            margin: 0 auto;
        }

        .accordion-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            padding: 16px 56px 16px 20px;
            position: relative;
            border-bottom: 1px solid transparent;
            transition: all var(--transition-base);
            box-shadow: none;
        }

        .accordion-button:not(.collapsed) {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
            border-bottom-color: rgba(255, 255, 255, 0.06);
        }

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

        .accordion-button::before {
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f067";
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 229, 160, 0.1);
            color: var(--brand-cyan);
            font-size: 13px;
            transition: all var(--transition-base);
        }

        .accordion-button:not(.collapsed)::before {
            content: "\f068";
            background: rgba(0, 229, 160, 0.25);
        }

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

        .accordion-body {
            background: rgba(0, 229, 160, 0.04);
            padding: 16px 20px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .cta-section {
            background-image: linear-gradient(rgba(7, 14, 28, 0.75), rgba(11, 21, 38, 0.85)), url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            padding: 72px 0;
            text-align: center;
        }

        .cta-card {
            display: inline-block;
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 24px;
            padding: 48px 64px;
            max-width: 640px;
            width: 100%;
            box-shadow: var(--shadow-card);
        }

        .cta-card h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .cta-card p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 28px;
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-glass);
            padding: 64px 0 0;
        }

        .footer-cols {
            padding-bottom: 48px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            width: 34px;
            height: 34px;
            font-size: 14px;
        }

        .site-footer .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 260px;
        }

        .site-footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

        .site-footer .footer-links li {
            margin-bottom: 10px;
        }

        .site-footer .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
        }

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

        .contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .contact-list i {
            color: var(--brand-cyan);
            width: 20px;
            text-align: center;
        }

        .social-icons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .social-icons a {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            color: var(--text-secondary);
            font-size: 18px;
            transition: all var(--transition-base);
        }

        .social-icons a:hover {
            background: rgba(0, 229, 160, 0.1);
            border-color: rgba(0, 229, 160, 0.3);
            color: var(--brand-cyan);
            transform: translateY(-3px);
        }

        .footer-bottom {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-glass);
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 12px;
            color: var(--text-tertiary);
            margin: 0;
            line-height: 1.6;
        }

        .footer-domain {
            margin-top: 4px;
        }

        .mobile-tabbar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 21, 38, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-around;
            align-items: center;
            height: 64px;
            padding-bottom: env(safe-area-inset-bottom);
        }

        .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            flex: 1;
            color: var(--text-secondary);
            font-size: 11px;
            position: relative;
            transition: color var(--transition-base);
        }

        .tab-item i {
            font-size: 20px;
            line-height: 1;
        }

        .tab-item span {
            font-size: 10px;
            letter-spacing: 0.5px;
        }

        .tab-item.active {
            color: var(--brand-cyan);
        }

        .tab-item.active::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-cyan);
            box-shadow: 0 0 8px rgba(0, 229, 160, 0.6);
        }

        .tab-item:hover {
            color: var(--text-primary);
        }

        .scroll-section {
            scroll-margin-top: 72px;
        }

        @media (min-width: 1200px) {
            .container {
                max-width: var(--container-max);
            }
        }

        @media (min-width: 992px) {
            .site-header {
                display: block;
            }
            .mobile-tabbar {
                display: none;
            }
            .hero {
                min-height: 80vh;
            }
            .hero h1 {
                font-size: 44px;
            }
            .section {
                padding: 96px 0;
            }
        }

        @media (max-width: 991.98px) {
            .site-header {
                display: none;
            }
            .mobile-tabbar {
                display: flex;
            }
            .hero {
                min-height: 65vh;
                padding-top: 40px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .section {
                padding: 56px 0;
            }
            .section-head {
                margin-bottom: 40px;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .highlight-row {
                flex-direction: column;
                gap: 24px;
                margin-bottom: 48px;
            }
            .highlight-row.reverse {
                flex-direction: column;
            }
            .highlight-media {
                flex: none;
                width: 100%;
            }
            .highlight-media img {
                height: 240px;
            }
            .register-text {
                padding-right: 0;
                margin-bottom: 28px;
            }
            .register-text h2 {
                font-size: 22px;
            }
            .cta-card {
                padding: 32px 24px;
            }
            .cta-card h2 {
                font-size: 22px;
            }
            body {
                padding-bottom: 64px;
            }
            .footer-cols {
                gap: 24px;
            }
            .stat-card {
                padding: 20px 12px;
            }
            .stat-num {
                font-size: 36px;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-content {
                padding: 40px 16px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 280px;
            }
            .hero-badge {
                font-size: 11px;
                padding: 4px 14px;
            }
            .news-card {
                padding: 12px;
                gap: 12px;
            }
            .news-thumb {
                width: 80px;
                height: 64px;
            }
            .news-title {
                font-size: 14px;
            }
            .news-excerpt {
                font-size: 12px;
            }
            .tickets-table {
                min-width: 600px;
            }
            .form-note {
                font-size: 12px;
            }
            .cta-card {
                padding: 28px 20px;
            }
            .register-form-card {
                padding: 20px;
            }
            .highlight-media img {
                height: 180px;
            }
            .highlight-num {
                font-size: 36px;
            }
        }

        @media (max-width: 575.98px) {
            .footer-cols .col-6 {
                flex: 0 0 50%;
                max-width: 50%;
            }
            .social-icons a {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B1526;
            --bg-secondary: #0F1D33;
            --bg-tertiary: #132744;
            --brand-blue: #1D6FF2;
            --accent-green: #00E5A0;
            --accent-gold: #F5B54D;
            --text-primary: rgba(255, 255, 255, .85);
            --text-secondary: rgba(255, 255, 255, .55);
            --text-muted: rgba(255, 255, 255, .3);
            --border-light: rgba(255, 255, 255, .08);
            --border-hover: rgba(255, 255, 255, .18);
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, .28);
            --shadow-hover: 0 16px 48px rgba(29, 111, 242, .18);
            --transition: .3s ease;
            --font-digital: "DIN Alternate", "Bebas Neue", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            background: var(--bg-primary);
            color: var(--text-primary);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            max-width: 1320px;
            padding-left: 20px;
            padding-right: 20px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            height: 72px;
            background: rgba(11, 21, 38, .82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: -.3px;
            color: #fff;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(0, 229, 160, .25), rgba(245, 181, 77, .2));
            border: 1px solid rgba(0, 229, 160, .4);
            color: var(--accent-green);
            font-size: 17px;
        }

        .brand-text b {
            color: var(--brand-blue);
            font-weight: 800;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-link {
            position: relative;
            padding: 24px 2px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: .2px;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 12px;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--accent-green);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform var(--transition);
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--text-primary);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
        }

        .btn {
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            outline: none;
        }

        .btn:focus-visible {
            box-shadow: 0 0 0 3px rgba(0, 229, 160, .25);
            border-color: var(--accent-green);
        }

        .btn-primary {
            background: linear-gradient(135deg, #00E5A0, #00B4D8);
            color: #0B1526;
            border: none;
            box-shadow: 0 0 24px rgba(0, 229, 160, .35);
            min-width: 120px;
            height: 48px;
            line-height: 48px;
            padding: 0 24px;
        }

        .btn-primary:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 40px rgba(0, 229, 160, .55);
            color: #0B1526;
            transform: translateY(-2px);
        }

        .btn-sm {
            height: 40px;
            line-height: 40px;
            min-width: 90px;
            padding: 0 18px;
            font-size: 14px;
        }

        .btn-lg {
            height: 52px;
            line-height: 52px;
            min-width: 140px;
            padding: 0 30px;
            font-size: 16px;
        }

        .header-cta {
            border-radius: 50px;
        }

        .breadcrumb-bar {
            padding: 22px 0 0;
            border-bottom: 1px solid rgba(255, 255, 255, .04);
        }

        .breadcrumb-nav {
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, .5);
        }

        .breadcrumb-nav a:hover {
            color: var(--accent-green);
        }

        .breadcrumb-nav .sep {
            color: rgba(255, 255, 255, .25);
        }

        .breadcrumb-nav .current {
            color: var(--text-secondary);
        }

        .article-main {
            padding: 48px 0 30px;
        }

        .article-back {
            margin-bottom: 20px;
        }

        .article-back a {
            font-size: 14px;
            font-weight: 600;
            color: rgba(255, 255, 255, .5);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition);
        }

        .article-back a:hover {
            color: var(--accent-green);
        }

        .article-card {
            background: rgba(255, 255, 255, .05);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 40px 48px;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .article-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 20px;
            right: 20px;
            height: 1px;
            background: rgba(255, 255, 255, .15);
            border-radius: 2px;
        }

        .article-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -.4px;
            color: #fff;
            margin: 0 0 16px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .meta-category {
            display: inline-block;
            background: rgba(245, 181, 77, .15);
            border: 1px solid rgba(245, 181, 77, .3);
            color: var(--accent-gold);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 14px;
            border-radius: 50px;
            letter-spacing: .5px;
        }

        .meta-item {
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-item i {
            color: rgba(255, 255, 255, .35);
            font-size: 14px;
        }

        .article-cover {
            border-radius: var(--radius-card);
            overflow: hidden;
            margin-bottom: 32px;
            background: var(--bg-tertiary);
            aspect-ratio: 16/9;
            position: relative;
        }

        .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 65%, rgba(7, 14, 28, .4));
            pointer-events: none;
        }

        .article-content {
            max-width: 760px;
            margin: 0 auto;
            color: var(--text-primary);
        }

        .article-content p {
            margin-bottom: 1.5em;
            line-height: 1.85;
            font-size: 16px;
        }

        .article-content h2 {
            font-size: 22px;
            font-weight: 700;
            margin: 2em 0 .8em;
            color: #fff;
            letter-spacing: -.2px;
        }

        .article-content h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 1.6em 0 .6em;
            color: rgba(255, 255, 255, .9);
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.5em;
            padding-left: 1.4em;
        }

        .article-content li {
            margin-bottom: .4em;
        }

        .article-content img {
            border-radius: 12px;
            margin: 1em 0;
        }

        .article-content blockquote {
            border-left: 3px solid var(--accent-green);
            background: rgba(255, 255, 255, .03);
            padding: 16px 24px;
            border-radius: 0 8px 8px 0;
            margin: 1.6em 0;
            color: rgba(255, 255, 255, .75);
        }

        .article-content blockquote p {
            margin: 0;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            background: rgba(255, 255, 255, .06);
            border-radius: 8px;
            overflow: hidden;
            margin: 1.5em 0;
            font-size: 14px;
        }

        .article-content table th {
            background: rgba(255, 255, 255, .1);
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
            color: #fff;
        }

        .article-content table td {
            padding: 10px 16px;
            border-top: 1px solid rgba(255, 255, 255, .06);
            color: var(--text-primary);
        }

        .article-content code {
            background: rgba(255, 255, 255, .1);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            color: rgba(255, 255, 255, .85);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 36px 0 0;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }

        .tag-chip {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: rgba(255, 255, 255, .6);
            border: 1px solid rgba(255, 255, 255, .2);
            padding: 4px 16px;
            border-radius: 50px;
            background: transparent;
            letter-spacing: .3px;
        }

        .article-notfound {
            background: rgba(255, 255, 255, .05);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 70px 30px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .article-notfound .empty-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: rgba(255, 255, 255, .4);
        }

        .article-notfound h1 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
        }

        .article-notfound p {
            font-size: 14px;
            color: rgba(255, 255, 255, .5);
            margin: 0 0 24px;
        }

        .related-section {
            padding: 60px 0 70px;
        }

        .section-head {
            text-align: center;
            margin-bottom: 36px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -.3px;
            margin: 0 0 6px;
        }

        .section-head p {
            font-size: 14px;
            color: rgba(255, 255, 255, .5);
            margin: 0;
        }

        .related-card {
            display: flex;
            flex-direction: column;
            background: rgba(255, 255, 255, .05);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            transition: all var(--transition);
        }

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

        .related-thumb {
            aspect-ratio: 16/10;
            background: var(--bg-tertiary);
            overflow: hidden;
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .related-card:hover .related-thumb img {
            transform: scale(1.04);
        }

        .related-body {
            padding: 20px 22px 22px;
        }

        .related-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 50px;
            background: rgba(245, 181, 77, .15);
            border: 1px solid rgba(245, 181, 77, .3);
            color: var(--accent-gold);
            margin-bottom: 10px;
        }

        .related-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .related-body p {
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
            margin: 0 0 12px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .cta-section {
            padding: 60px 0 80px;
            position: relative;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(closest-side, rgba(0, 229, 160, .12), transparent 75%);
            pointer-events: none;
        }

        .cta-card {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius-card);
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            position: relative;
        }

        .cta-card h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .cta-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, .5);
            margin: 0;
            max-width: 480px;
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding-top: 56px;
        }

        .footer-cols {
            padding-bottom: 40px;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            line-height: 1.7;
            margin: 0;
            max-width: 340px;
        }

        .site-footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

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

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

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            transition: color var(--transition);
        }

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

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

        .contact-list li {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .contact-list i {
            color: rgba(255, 255, 255, .35);
            width: 16px;
            text-align: center;
        }

        .social-icons {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            color: rgba(255, 255, 255, .7);
            font-size: 16px;
            transition: all var(--transition);
        }

        .social-icons a:hover {
            background: rgba(29, 111, 242, .2);
            border-color: var(--brand-blue);
            color: var(--accent-green);
            box-shadow: 0 0 16px rgba(29, 111, 242, .3);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding: 18px 0;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, .4);
            margin: 0;
        }

        .footer-bottom .footer-domain {
            color: rgba(255, 255, 255, .25);
            font-family: var(--font-digital);
            letter-spacing: .5px;
        }

        .mobile-tab-nav {
            display: none;
        }

        @media (max-width: 991.98px) {
            .main-nav {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .mobile-tab-nav {
                display: flex;
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                height: 64px;
                background: rgba(11, 21, 38, .92);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                border-top: 1px solid rgba(255, 255, 255, .08);
                z-index: 1040;
                padding-bottom: env(safe-area-inset-bottom);
            }

            .mobile-tab-nav .tab-item {
                flex: 1;
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 4px;
                font-size: 10px;
                color: rgba(255, 255, 255, .45);
                position: relative;
            }

            .mobile-tab-nav .tab-item i {
                font-size: 20px;
            }

            .mobile-tab-nav .tab-item.active {
                color: var(--accent-green);
            }

            .mobile-tab-nav .tab-item.active::before {
                content: "";
                position: absolute;
                top: 8px;
                left: 50%;
                transform: translateX(-50%);
                width: 8px;
                height: 8px;
                border-radius: 50%;
                background: var(--accent-green);
                box-shadow: 0 0 12px rgba(0, 229, 160, .4);
            }

            body {
                padding-bottom: 64px;
            }

            .article-card {
                padding: 28px 22px;
            }

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

            .cta-card {
                padding: 28px 24px;
            }
        }

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

            .site-header {
                height: 64px;
            }

            .header-inner {
                height: 64px;
            }

            .brand {
                font-size: 17px;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }

            .breadcrumb-bar {
                padding-top: 16px;
            }

            .article-main {
                padding-top: 28px;
            }

            .article-title {
                font-size: 22px;
                line-height: 1.4;
            }

            .article-meta {
                gap: 10px;
                margin-bottom: 20px;
            }

            .article-cover {
                margin-bottom: 24px;
                border-radius: 12px;
            }

            .article-content p {
                font-size: 15px;
            }

            .article-content h2 {
                font-size: 18px;
            }

            .section-head h2 {
                font-size: 22px;
            }

            .related-section {
                padding: 40px 0 50px;
            }

            .cta-section {
                padding: 36px 0 50px;
            }

            .cta-card {
                flex-direction: column;
                text-align: center;
                padding: 32px 20px;
                justify-content: center;
            }

            .cta-card p {
                margin-bottom: 16px;
            }

            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }

            .footer-cols {
                padding-bottom: 28px;
            }

            .related-thumb {
                aspect-ratio: 16/8;
            }
        }

/* roulang page: category1 */
:root {
    --bg-dark: #0B1526;
    --bg-dark-2: #0F1D33;
    --bg-dark-3: #132744;
    --brand-blue: #1D6FF2;
    --brand-cyan: #00E5A0;
    --brand-gold: #F5B54D;
    --text-light: rgba(255,255,255,0.85);
    --text-muted: rgba(255,255,255,0.55);
    --text-faint: rgba(255,255,255,0.3);
    --border-subtle: rgba(255,255,255,0.08);
    --border-soft: rgba(255,255,255,0.18);
    --card-bg: rgba(255,255,255,0.05);
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-pill: 50px;
    --shadow-card: 0 12px 32px rgba(0,0,0,0.28);
    --shadow-hover: 0 16px 48px rgba(29,111,242,0.18);
    --shadow-cta: 0 0 24px rgba(0,229,160,0.35);
    --font-cn: "PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
    --font-num: "DIN Alternate","Bebas Neue",sans-serif;
    --spacer-section: 96px;
    --header-height: 72px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-cn);
    background: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color .3s ease, border-color .3s ease, background .3s ease, box-shadow .3s ease, transform .3s ease;
}

a:focus-visible, button:focus-visible {
    outline: 2px solid var(--brand-cyan);
    outline-offset: 2px;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.container {
    width: 100%;
    padding-right: 16px;
    padding-left: 16px;
    margin-right: auto;
    margin-left: auto;
}

@media (min-width: 1320px) {
    .container { max-width: 1320px; }
}

/* ===== 按钮体系 ===== */
.btn {
    height: 48px;
    padding: 0 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
    border: none;
    cursor: pointer;
    transition: all .3s ease;
}

.btn-sm {
    height: 40px;
    padding: 0 20px;
    font-size: 14px;
    min-width: 80px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand-cyan), #00B4D8);
    color: #0B1526;
    box-shadow: var(--shadow-cta);
}

.btn-primary:hover {
    filter: brightness(1.1);
    box-shadow: 0 0 40px rgba(0,229,160,0.55);
    color: #0B1526;
    transform: translateY(-2px);
}

.btn-ghost {
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border-soft);
    color: var(--text-light);
    backdrop-filter: blur(8px);
}

.btn-ghost:hover {
    border-color: var(--brand-cyan);
    color: var(--brand-cyan);
    background: rgba(0,229,160,0.06);
}

/* ===== 顶部导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1040;
    height: var(--header-height);
    background: rgba(11,21,38,0.82);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: conic-gradient(from 180deg, #1D6FF2, #00E5A0, #F5B54D, #1D6FF2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0B1526;
    font-size: 15px;
    box-shadow: 0 0 16px rgba(0,229,160,0.2);
}

.brand-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: .3px;
    color: var(--text-light);
}

.brand-text b {
    color: var(--brand-blue);
    font-weight: 700;
}

.main-nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

.main-nav .nav-link {
    color: var(--text-muted);
    font-size: 15px;
    font-weight: 500;
    padding: 8px 2px;
    position: relative;
    border-bottom: 2px solid transparent;
    background: none;
}

.main-nav .nav-link:hover {
    color: var(--text-light);
}

.main-nav .nav-link.active {
    color: var(--text-light);
    border-bottom-color: var(--brand-cyan);
    font-weight: 600;
}

.header-cta {
    flex-shrink: 0;
}

/* ===== 移动端底部Tab ===== */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1050;
    display: none;
    height: 64px;
    padding-bottom: env(safe-area-inset-bottom);
    background: rgba(11,21,38,0.92);
    backdrop-filter: blur(14px);
    border-top: 1px solid rgba(255,255,255,0.08);
}

.mobile-bottom-nav .m-tabs {
    display: flex;
    height: 100%;
    align-items: stretch;
}

.m-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: var(--text-muted);
    font-size: 11px;
    position: relative;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
}

.m-tab i {
    font-size: 20px;
}

.m-tab.active {
    color: var(--brand-cyan);
}

.m-tab.active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 4px;
    border-radius: 0 0 4px 4px;
    background: var(--brand-cyan);
    box-shadow: 0 0 8px rgba(0,229,160,0.6);
}

/* ===== 分类首屏 ===== */
.category-hero {
    position: relative;
    min-height: 460px;
    display: flex;
    align-items: center;
    background:
        linear-gradient(120deg, rgba(7,14,28,0.9) 0%, rgba(7,14,28,0.68) 45%, rgba(7,14,28,0.3) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    padding: 90px 0 80px;
}

.hero-inner {
    position: relative;
    z-index: 2;
    max-width: 680px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 18px;
    border-radius: var(--radius-pill);
    background: rgba(245,181,77,0.12);
    border: 1px solid rgba(245,181,77,0.35);
    color: var(--brand-gold);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.hero-inner h1 {
    font-size: 44px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
    color: #fff;
}

.hero-desc {
    font-size: 16px;
    color: rgba(255,255,255,0.7);
    max-width: 520px;
    line-height: 1.7;
    margin-bottom: 28px;
}

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

/* ===== 核心卖点 ===== */
.features-section {
    padding: var(--spacer-section) 0;
    background: var(--bg-dark-2);
}

.section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 48px;
}

.section-head h2 {
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-head p {
    font-size: 15px;
    color: var(--text-muted);
}

.point-card {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    height: 100%;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(16px);
    transition: all .3s ease;
}

.point-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255,255,255,0.15);
}

.point-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-soft);
    box-shadow: var(--shadow-hover);
}

.point-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: rgba(29,111,242,0.15);
    border: 1px solid rgba(29,111,242,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-cyan);
    font-size: 22px;
    margin-bottom: 20px;
}

.point-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

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

/* ===== 内容区 ===== */
.content-section {
    padding: var(--spacer-section) 0;
    background: var(--bg-dark);
}

.content-wrap {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.content-main {
    flex: 1 1 70%;
    min-width: 0;
}

.content-side {
    flex: 0 0 280px;
}

.content-card {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 40px;
    backdrop-filter: blur(16px);
    position: relative;
    overflow: hidden;
}

.content-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255,255,255,0.15);
}

.content-card .main-image {
    width: 100%;
    min-height: 260px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 28px;
}

.content-card h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

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

.content-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 28px 0 16px;
    padding-left: 12px;
    border-left: 3px solid var(--brand-cyan);
}

.content-list {
    list-style: none;
    padding: 0;
    margin: 0 0 8px;
}

.content-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
}

.content-list li:last-child {
    border-bottom: none;
}

.content-list li i {
    color: var(--brand-cyan);
    margin-top: 4px;
    font-size: 14px;
    flex-shrink: 0;
}

.content-list li span {
    color: rgba(255,255,255,0.55);
    font-size: 14px;
    display: block;
}

.side-card {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 14px;
    transition: all .3s ease;
    position: relative;
    overflow: hidden;
}

.side-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255,255,255,0.12);
}

.side-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-soft);
    box-shadow: var(--shadow-hover);
}

.side-card h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.side-card h4 i {
    color: var(--brand-gold);
    font-size: 13px;
}

.side-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0 0 10px;
}

.side-card a {
    font-size: 13px;
    color: var(--brand-cyan);
    font-weight: 500;
}

.side-card a:hover {
    color: var(--brand-cyan);
    text-decoration: underline;
}

/* ===== 流程区 ===== */
.flow-section {
    padding: var(--spacer-section) 0;
    background: var(--bg-dark-3);
}

.flow-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.flow-step {
    text-align: center;
    padding: 32px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    position: relative;
    transition: all .3s ease;
}

.flow-step:hover {
    border-color: var(--border-soft);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.step-num {
    font-family: var(--font-num);
    font-size: 56px;
    font-weight: 700;
    color: var(--brand-gold);
    opacity: 0.4;
    line-height: 1;
    display: block;
    margin-bottom: 14px;
}

.flow-step h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.flow-step p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
}

.flow-arrow {
    position: absolute;
    top: 50%;
    right: -20px;
    transform: translateY(-50%);
    color: var(--brand-cyan);
    font-size: 16px;
    opacity: 0.5;
    z-index: 2;
}

/* ===== FAQ区 ===== */
.faq-section {
    padding: var(--spacer-section) 0;
    background: var(--bg-dark-2);
}

.accordion {
    max-width: 860px;
    margin: 0 auto;
    --bs-accordion-border-color: var(--border-subtle);
    --bs-accordion-border-radius: var(--radius-lg);
    --bs-accordion-inner-border-radius: var(--radius-lg);
    --bs-accordion-bg: transparent;
    --bs-accordion-active-bg: transparent;
    --bs-accordion-active-color: var(--text-light);
    --bs-accordion-btn-focus-box-shadow: 0 0 0 2px rgba(0,229,160,0.15);
}

.accordion-item {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg) !important;
    margin-bottom: 12px;
    overflow: hidden;
    backdrop-filter: blur(16px);
}

.accordion-button {
    height: 52px;
    padding: 0 20px;
    background: transparent;
    color: var(--text-light);
    font-size: 15px;
    font-weight: 600;
    box-shadow: none;
    display: flex;
    align-items: center;
}

.accordion-button:not(.collapsed) {
    background: rgba(0,229,160,0.04);
    color: var(--text-light);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 2px rgba(0,229,160,0.15);
}

.accordion-button::after {
    content: '+';
    background-image: none;
    font-family: var(--font-num);
    font-weight: 300;
    font-size: 26px;
    color: var(--brand-cyan);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform .3s ease;
}

.accordion-button:not(.collapsed)::after {
    content: '−';
    background-image: none;
    color: var(--brand-cyan);
}

.accordion-body {
    padding: 16px 20px;
    background: rgba(0,229,160,0.04);
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    border-top: 1px solid rgba(0,229,160,0.08);
}

/* ===== CTA区 ===== */
.cta-section {
    padding: var(--spacer-section) 0;
    background: var(--bg-dark);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0,229,160,0.14) 0%, transparent 70%);
    pointer-events: none;
}

.cta-card {
    position: relative;
    z-index: 1;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 64px 48px;
    text-align: center;
    backdrop-filter: blur(18px);
    max-width: 860px;
    margin: 0 auto;
    box-shadow: var(--shadow-card);
}

.cta-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255,255,255,0.15);
    border-radius: 20px 20px 0 0;
}

.cta-card h2 {
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 14px;
}

.cta-card p {
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.cta-card .btn {
    min-width: 180px;
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--bg-dark-3);
    padding: 64px 0 0;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-cols {
    padding-bottom: 48px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 14px;
}

.footer-brand .brand-icon {
    width: 32px;
    height: 32px;
    font-size: 13px;
}

.footer-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
    max-width: 320px;
}

.site-footer h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 18px;
}

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

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

.footer-links a {
    font-size: 14px;
    color: var(--text-muted);
    transition: color .3s ease;
}

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

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

.contact-list li {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-list li i {
    color: var(--brand-cyan);
    width: 16px;
    text-align: center;
    font-size: 13px;
}

.social-icons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 16px;
    transition: all .3s ease;
}

.social-icons a:hover {
    color: var(--brand-cyan);
    border-color: var(--brand-cyan);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,229,160,0.12);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 20px 0;
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-bottom p {
    font-size: 12px;
    color: rgba(255,255,255,0.4);
    margin: 0;
}

.footer-domain {
    color: rgba(255,255,255,0.3);
}

/* ===== 响应式 ===== */
@media (max-width: 1199px) {
    .flow-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991px) {
    :root {
        --spacer-section: 64px;
    }

    .site-header {
        height: 64px;
    }

    .main-nav {
        display: none;
    }

    .header-cta {
        display: none;
    }

    .mobile-bottom-nav {
        display: block;
    }

    body {
        padding-bottom: 64px;
    }

    .category-hero {
        min-height: 380px;
        padding: 60px 0 50px;
    }

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

    .content-wrap {
        flex-direction: column;
    }

    .content-side {
        flex: none;
        width: 100%;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
    }

    .side-card {
        margin-bottom: 0;
    }

    .cta-card {
        padding: 48px 32px;
    }
}

@media (max-width: 767px) {
    .section-head h2 {
        font-size: 22px;
    }

    .content-card {
        padding: 28px 20px;
    }

    .content-card h2 {
        font-size: 20px;
    }

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

    .flow-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .flow-arrow {
        display: none;
    }

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

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

    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 520px) {
    .category-hero {
        padding: 48px 0 40px;
        min-height: 340px;
    }

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

    .hero-desc {
        font-size: 14px;
    }

    .hero-badge {
        font-size: 11px;
    }

    .point-card {
        padding: 24px 20px;
    }

    .content-side {
        grid-template-columns: 1fr 1fr;
    }

    .side-card {
        padding: 16px 14px;
    }

    .cta-card {
        padding: 36px 20px;
    }

    .cta-card h2 {
        font-size: 22px;
    }

    .cta-card .btn {
        width: 100%;
        min-width: 0;
    }
}

@media (max-width: 420px) {
    .content-side {
        grid-template-columns: 1fr;
    }
}

/* roulang page: category2 */
:root {
            --bg-primary: #0B1526;
            --bg-secondary: #0F1D33;
            --bg-tertiary: #132744;
            --brand-blue: #1D6FF2;
            --accent-green: #00E5A0;
            --accent-teal: #00B4D8;
            --accent-gold: #F5B54D;
            --text-primary: rgba(255, 255, 255, 0.85);
            --text-secondary: rgba(255, 255, 255, 0.55);
            --text-muted: rgba(255, 255, 255, 0.3);
            --border-light: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.18);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-pill: 50px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.28);
            --shadow-hover: 0 16px 48px rgba(29, 111, 242, 0.18);
            --shadow-cta: 0 0 24px rgba(0, 229, 160, 0.35);
            --space-section: 96px;
            --font-main: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
            --font-num: "DIN Alternate", "Bebas Neue", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.75;
            background: var(--bg-primary);
            color: var(--text-primary);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease, border-color 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
        }
        a:hover {
            color: var(--accent-green);
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-main);
        }
        .container {
            max-width: 1320px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 72px;
            background: rgba(11, 21, 38, 0.82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: -0.2px;
            white-space: nowrap;
        }
        .brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(29, 111, 242, 0.25), rgba(0, 229, 160, 0.25));
            border: 1px solid rgba(0, 229, 160, 0.35);
            color: var(--accent-green);
            font-size: 17px;
        }
        .brand-text {
            font-size: 18px;
            color: var(--brand-blue);
        }
        .brand-text b {
            font-weight: 700;
            color: #ffffff;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav .nav-link {
            position: relative;
            padding: 6px 0;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color 0.3s ease;
        }
        .main-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--accent-green);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform 0.3s ease;
        }
        .main-nav .nav-link:hover {
            color: rgba(255, 255, 255, 0.95);
        }
        .main-nav .nav-link:hover::after {
            transform: scaleX(1);
        }
        .main-nav .nav-link.active {
            color: #ffffff;
        }
        .main-nav .nav-link.active::after {
            transform: scaleX(1);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            font-weight: 600;
            border: 0;
            transition: all 0.3s ease;
            cursor: pointer;
            line-height: 1.2;
            letter-spacing: 0.2px;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-green), var(--accent-teal));
            color: #08121e;
            box-shadow: var(--shadow-cta);
            height: 48px;
            padding: 0 24px;
            min-width: 120px;
        }
        .btn-primary:hover {
            color: #08121e;
            background: linear-gradient(135deg, #12f5b0, #0ec2e6);
            box-shadow: 0 0 40px rgba(0, 229, 160, 0.55);
            transform: translateY(-1px);
        }
        .btn-primary.btn-sm {
            height: 40px;
            padding: 0 18px;
            min-width: 96px;
            font-size: 14px;
        }
        .btn-outline-light {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            color: rgba(255, 255, 255, 0.85);
            height: 48px;
            padding: 0 24px;
            min-width: 120px;
            backdrop-filter: blur(8px);
        }
        .btn-outline-light:hover {
            border-color: rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }
        .header-cta {
            flex-shrink: 0;
        }
        .category-hero {
            position: relative;
            padding: 72px 0 80px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border-light);
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(7, 14, 28, 0.88) 0%, rgba(11, 21, 38, 0.62) 55%, rgba(11, 21, 38, 0.45) 100%);
        }
        .category-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 75% 30%, rgba(29, 111, 242, 0.14), transparent 62%);
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-gold);
            border: 1px solid rgba(245, 181, 77, 0.4);
            background: rgba(245, 181, 77, 0.08);
            letter-spacing: 1px;
            margin-bottom: 22px;
        }
        .category-hero h1 {
            font-size: 42px;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #ffffff;
            margin-bottom: 18px;
        }
        .category-hero p.subtitle {
            font-size: 16px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .section {
            padding: var(--space-section) 0;
        }
        .section-alt {
            background: var(--bg-secondary);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title .section-tag {
            display: inline-flex;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            color: var(--accent-green);
            border: 1px solid rgba(0, 229, 160, 0.3);
            background: rgba(0, 229, 160, 0.06);
            margin-bottom: 14px;
        }
        .section-title h2 {
            font-size: 30px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-title p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 0;
        }
        .flow-section {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-light);
        }
        .flow-wrapper {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
        }
        .flow-card {
            position: relative;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 32px 24px 28px;
            backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .flow-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
        }
        .flow-step {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1;
            margin-bottom: 10px;
        }
        .flow-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 10px;
        }
        .flow-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .flow-card::before {
            content: "";
            position: absolute;
            top: 44px;
            right: -24px;
            width: 24px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-green), transparent);
        }
        .flow-card:last-child::before {
            display: none;
        }
        .guide-content {
            background: var(--bg-primary);
        }
        .main-col {
            padding-right: 40px;
        }
        .main-col .img-block {
            border-radius: var(--radius-card);
            overflow: hidden;
            margin-bottom: 28px;
            box-shadow: var(--shadow-card);
        }
        .main-col .img-block img {
            width: 100%;
            object-fit: cover;
            min-height: 240px;
        }
        .content-heading {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 24px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 24px;
        }
        .content-heading .heading-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(29, 111, 242, 0.15);
            color: var(--brand-blue);
            font-size: 18px;
            border: 1px solid rgba(29, 111, 242, 0.25);
        }
        .content-block {
            margin-bottom: 40px;
        }
        .content-block .lead-text {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 15px;
            line-height: 1.6;
            color: var(--text-primary);
        }
        .feature-list li:last-child {
            border-bottom: 0;
        }
        .feature-list li i {
            color: var(--accent-green);
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .scene-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .scene-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            border-radius: 14px;
            padding: 22px;
            transition: border-color 0.3s ease, background-color 0.3s ease;
        }
        .scene-card:hover {
            border-color: rgba(0, 229, 160, 0.35);
            background: rgba(0, 229, 160, 0.05);
        }
        .scene-card i {
            font-size: 24px;
            color: var(--accent-green);
            margin-bottom: 10px;
        }
        .scene-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 6px;
        }
        .scene-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .side-col {
            padding-left: 24px;
        }
        .side-card {
            display: block;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            border-radius: 14px;
            padding: 20px;
            margin-bottom: 12px;
            transition: transform 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
        }
        .side-card:hover {
            transform: translateY(-3px);
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.07);
        }
        .side-card .side-title {
            font-size: 14px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-card .side-title i {
            color: var(--accent-green);
            font-size: 15px;
        }
        .side-card .side-desc {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.5;
            margin-bottom: 0;
        }
        .side-card .side-arrow {
            color: var(--accent-green);
            font-size: 13px;
            margin-top: 8px;
            display: inline-block;
        }
        .faq-section {
            background: var(--bg-secondary);
        }
        .faq-wrapper {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            margin-bottom: 12px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            border-radius: 14px;
            overflow: hidden;
            backdrop-filter: blur(12px);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 22px;
            height: 52px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: #ffffff;
            border: 0;
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-item .faq-icon {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            border: 1px solid rgba(0, 229, 160, 0.5);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 12px;
            flex-shrink: 0;
            transition: transform 0.3s ease, background-color 0.3s ease;
        }
        .faq-item .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(135deg);
            background: rgba(0, 229, 160, 0.15);
        }
        .faq-item .faq-answer {
            padding: 4px 22px 18px;
            background: rgba(0, 229, 160, 0.04);
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
        }
        .cta-section {
            position: relative;
            padding: 72px 0;
            background: var(--bg-primary);
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            width: 780px;
            height: 420px;
            transform: translate(-50%, -50%);
            background: radial-gradient(ellipse, rgba(0, 229, 160, 0.14) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 56px 48px;
            text-align: center;
            backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            max-width: 860px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 30px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
        }
        .cta-inner p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 28px;
        }
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-light);
            padding-top: 64px;
        }
        .site-footer .footer-cols {
            padding-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 300px;
            margin-bottom: 0;
        }
        .site-footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .footer-links a:hover {
            color: var(--accent-green);
        }
        .contact-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .contact-list li {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .contact-list li i {
            color: var(--accent-green);
            font-size: 14px;
            width: 16px;
            text-align: center;
        }
        .social-icons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .social-icons a {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border-light);
            background: rgba(255, 255, 255, 0.04);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 16px;
            transition: all 0.3s ease;
        }
        .social-icons a:hover {
            color: var(--accent-green);
            border-color: rgba(0, 229, 160, 0.4);
            background: rgba(0, 229, 160, 0.08);
            transform: translateY(-2px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 18px 0;
            background: rgba(7, 14, 28, 0.4);
        }
        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .footer-bottom p {
            margin: 0;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-domain {
            letter-spacing: 0.4px;
        }
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 2000;
            height: 64px;
            background: rgba(11, 21, 38, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--border-light);
        }
        .mobile-bottom-nav .mb-tab {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            font-size: 10px;
            color: var(--text-secondary);
            position: relative;
            transition: color 0.3s ease;
            padding-bottom: 6px;
        }
        .mobile-bottom-nav .mb-tab .mb-icon {
            font-size: 18px;
            line-height: 1;
            transition: transform 0.3s ease;
        }
        .mobile-bottom-nav .mb-tab.active {
            color: var(--accent-green);
        }
        .mobile-bottom-nav .mb-tab.active::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 26px;
            height: 3px;
            border-radius: 0 0 4px 4px;
            background: var(--accent-green);
        }
        .mobile-bottom-nav .mb-tab.active .mb-icon {
            transform: scale(1.05);
        }
        @media (max-width: 991.98px) {
            .main-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .mobile-bottom-nav {
                display: flex;
            }
            body {
                padding-bottom: 64px;
            }
            .site-header {
                height: 62px;
            }
            .site-header .header-inner {
                height: 62px;
            }
            .category-hero {
                padding: 52px 0 60px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero p.subtitle {
                font-size: 15px;
            }
            .flow-wrapper {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .flow-card::before {
                display: none;
            }
            .main-col {
                padding-right: 0;
            }
            .side-col {
                padding-left: 0;
                margin-top: 32px;
            }
            .section {
                padding: 56px 0;
            }
            .section-title h2 {
                font-size: 22px;
            }
            .cta-inner {
                padding: 40px 24px;
            }
        }
        @media (max-width: 767.98px) {
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .flow-wrapper {
                grid-template-columns: 1fr;
            }
            .content-heading {
                font-size: 20px;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 575.98px) {
            .category-hero {
                background-position: 60% center;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .hero-actions .btn {
                width: 100%;
                min-width: 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .section-title h2 {
                font-size: 21px;
            }
            .cta-inner {
                padding: 32px 20px;
            }
            .footer-bottom .container {
                justify-content: center;
                text-align: center;
            }
        }
        @media (min-width: 992px) {
            body {
                padding-bottom: 0;
            }
        }
        @media (min-width: 1320px) {
            .section {
                padding: 112px 0;
            }
        }