/* roulang page: index */
:root {
            --primary: #4338ca;
            --primary-dark: #3730a3;
            --primary-light: #6366f1;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --dark-bg: #0f0b2b;
            --dark-bg2: #1a1440;
            --light-bg: #f4f6fb;
            --text: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --white: #ffffff;
            --radius: 18px;
            --radius-sm: 10px;
            --radius-lg: 28px;
            --shadow: 0 4px 24px rgba(15, 11, 43, .06);
            --shadow-hover: 0 12px 36px rgba(15, 11, 43, .14);
            --transition: all .3s cubic-bezier(.25, .8, .25, 1);
            --font: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--white);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            outline: none;
        }
        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .navbar-custom {
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            padding-top: 14px;
            padding-bottom: 14px;
            transition: var(--transition);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .navbar-custom .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: .5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-custom .navbar-brand i {
            color: var(--accent);
            font-size: 1.3rem;
        }
        .navbar-custom .nav-link {
            font-weight: 600;
            color: var(--text);
            padding: 8px 18px !important;
            border-radius: 30px;
            font-size: .95rem;
            position: relative;
            transition: var(--transition);
        }
        .navbar-custom .nav-link:hover {
            color: var(--primary);
            background: rgba(67, 56, 202, .06);
        }
        .navbar-custom .nav-link.active {
            color: var(--primary);
            background: rgba(67, 56, 202, .1);
        }
        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent) 0%, #fbbf24 100%);
            color: #1e1b0a;
            font-weight: 700;
            border: none;
            padding: 10px 28px;
            border-radius: 40px;
            font-size: .95rem;
            box-shadow: 0 4px 14px rgba(245, 158, 11, .3);
            transition: all .3s ease;
        }
        .btn-accent:hover,
        .btn-accent:focus {
            color: #1e1b0a;
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 24px rgba(245, 158, 11, .4);
            background: linear-gradient(135deg, #f59e0b 0%, #fcd34d 100%);
        }
        .btn-outline-light-custom {
            border: 2px solid rgba(255, 255, 255, .7);
            color: #fff;
            background: transparent;
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 600;
            transition: all .3s ease;
        }
        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }
        .navbar-toggler {
            border: none;
            padding: 6px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'%3E%3Cpath stroke='%234338ca' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
        }
        @media (max-width: 991.98px) {
            .navbar-custom .navbar-collapse {
                background: #fff;
                border-radius: 16px;
                box-shadow: var(--shadow);
                padding: 20px;
                margin-top: 12px;
                border: 1px solid var(--border);
            }
            .navbar-custom .nav-link {
                padding: 10px 16px !important;
            }
            .navbar-custom .btn-accent {
                margin-left: 0;
                margin-top: 10px;
                width: 100%;
                text-align: center;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: var(--dark-bg) url('/assets/images/backpic/back-1.png') no-repeat center center;
            background-size: cover;
            color: #fff;
            padding: 140px 0 100px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(15, 11, 43, .88) 0%, rgba(15, 11, 43, .62) 50%, rgba(15, 11, 43, .35) 100%);
        }
        .hero::after {
            content: '';
            position: absolute;
            right: -20%;
            top: -30%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(99, 102, 241, .25) 0%, transparent 70%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(99, 102, 241, .25);
            border: 1px solid rgba(129, 140, 248, .4);
            border-radius: 40px;
            padding: 6px 18px;
            font-size: .85rem;
            font-weight: 600;
            color: #c7d2fe;
            margin-bottom: 24px;
        }
        .hero-badge i {
            color: var(--accent);
            font-size: .8rem;
        }
        .hero h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }
        .hero h1 span {
            color: var(--accent);
            position: relative;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, .75);
            max-width: 640px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 60px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: .85rem;
            color: rgba(255, 255, 255, .6);
            margin-top: 4px;
        }
        @media (max-width: 767.98px) {
            .hero {
                padding: 100px 0 80px;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 40px;
            }
            .hero-stat .num {
                font-size: 1.5rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
        }

        /* ===== 特点 ===== */
        .section {
            padding: 90px 0;
        }
        .section-label {
            display: inline-block;
            font-size: .85rem;
            font-weight: 700;
            color: var(--primary);
            background: rgba(67, 56, 202, .08);
            padding: 5px 16px;
            border-radius: 30px;
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 640px;
            margin: 0 auto;
        }
        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 34px 28px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 18px;
            background: linear-gradient(135deg, rgba(67, 56, 202, .12), rgba(99, 102, 241, .08));
            color: var(--primary);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: .92rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 数据深色区块 ===== */
        .stats-section {
            background: var(--dark-bg) url('/assets/images/backpic/back-2.png') no-repeat center center;
            background-size: cover;
            position: relative;
            padding: 90px 0;
            color: #fff;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 11, 43, .85);
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
        }
        .stat-block {
            text-align: center;
            padding: 20px;
        }
        .stat-block .stat-num {
            font-size: clamp(2.4rem, 4vw, 3.2rem);
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent), #fcd34d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: block;
            line-height: 1.2;
        }
        .stat-block .stat-label {
            font-size: .9rem;
            color: rgba(255, 255, 255, .65);
            margin-top: 6px;
            letter-spacing: .5px;
        }
        .stats-section .stat-block + .stat-block {
            border-left: 1px solid rgba(255, 255, 255, .1);
        }
        @media (max-width: 767.98px) {
            .stats-section .stat-block + .stat-block {
                border-left: none;
                border-top: 1px solid rgba(255, 255, 255, .1);
            }
        }

        /* ===== 分类卡片 ===== */
        .category-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            height: 100%;
            background: var(--white);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: block;
        }
        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .category-card .cat-image {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .category-card .cat-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .category-card:hover .cat-image img {
            transform: scale(1.06);
        }
        .category-card .cat-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(15, 11, 43, .5));
        }
        .category-card .cat-body {
            padding: 24px;
            text-align: center;
        }
        .category-card .cat-badge {
            display: inline-block;
            background: rgba(67, 56, 202, .08);
            color: var(--primary);
            font-size: .75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 10px;
            letter-spacing: .5px;
        }
        .category-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .category-card p {
            color: var(--text-muted);
            font-size: .88rem;
            line-height: 1.6;
            margin-bottom: 0;
        }
        .category-card .cat-arrow {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(67, 56, 202, .1);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-top: 14px;
            font-size: .9rem;
            transition: var(--transition);
        }
        .category-card:hover .cat-arrow {
            background: var(--primary);
            color: #fff;
            transform: translateX(4px);
        }

        /* ===== 资讯 ===== */
        .news-section {
            background: var(--light-bg);
        }
        .news-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            height: 100%;
            transition: var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .news-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
            gap: 10px;
        }
        .news-cat {
            background: rgba(67, 56, 202, .08);
            color: var(--primary);
            font-size: .75rem;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: 30px;
        }
        .news-date {
            color: var(--text-muted);
            font-size: .82rem;
        }
        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .news-card h3 a:hover {
            color: var(--primary);
        }
        .news-card p {
            color: var(--text-muted);
            font-size: .88rem;
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== 流程 ===== */
        .step-item {
            text-align: center;
            padding: 30px 20px;
            position: relative;
        }
        .step-line {
            position: absolute;
            top: 55px;
            left: calc(50% + 40px);
            width: calc(100% - 80px);
            border-top: 2px dashed var(--border);
            z-index: 0;
        }
        .step-num {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            box-shadow: 0 6px 20px rgba(67, 56, 202, .3);
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            color: var(--text-muted);
            font-size: .85rem;
            margin-bottom: 0;
        }
        @media (max-width: 767.98px) {
            .step-line {
                display: none;
            }
            .step-item {
                padding: 20px 10px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--white);
        }
        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: none !important;
        }
        .accordion-button {
            font-weight: 600;
            font-size: .98rem;
            padding: 18px 24px !important;
            background: var(--white) !important;
            color: var(--text) !important;
            box-shadow: none !important;
            border: none !important;
            transition: var(--transition);
        }
        .accordion-button:hover {
            color: var(--primary) !important;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary) !important;
            background: rgba(67, 56, 202, .03) !important;
        }
        .accordion-button:focus {
            box-shadow: none !important;
            outline: 2px solid rgba(67, 56, 202, .2) !important;
        }
        .accordion-button::after {
            background-size: 14px;
        }
        .accordion-body {
            color: var(--text-muted);
            font-size: .92rem;
            padding: 4px 24px 20px !important;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--dark-bg) url('/assets/images/backpic/back-3.png') no-repeat center center;
            background-size: cover;
            position: relative;
            padding: 100px 0;
            color: #fff;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 11, 43, .8);
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, .7);
            max-width: 540px;
            margin: 0 auto 30px;
            font-size: 1rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, .6);
            padding: 60px 0 24px;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .site-footer .footer-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            display: block;
        }
        .site-footer a {
            color: rgba(255, 255, 255, .6);
            display: inline-block;
            padding: 3px 0;
            font-size: .9rem;
        }
        .site-footer a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 20px;
            margin-top: 40px;
            text-align: center;
            font-size: .82rem;
            color: rgba(255, 255, 255, .35);
        }

        /* ===== 通用 ===== */
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-weight: 700;
            border: none;
            padding: 12px 34px;
            border-radius: 40px;
            font-size: .95rem;
            box-shadow: 0 4px 18px rgba(67, 56, 202, .3);
            transition: all .3s ease;
        }
        .btn-primary-custom:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(67, 56, 202, .4);
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }
        .text-gradient {
            background: linear-gradient(135deg, var(--accent), #fcd34d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-soft-light {
            background: var(--light-bg);
        }
        @media (max-width: 575.98px) {
            .section {
                padding: 60px 0;
            }
            .hero-actions .btn {
                width: 100%;
                text-align: center;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #4f46e5;
            --primary-dark: #3730a3;
            --secondary: #06b6d4;
            --accent: #f97316;
            --accent-light: #fb923c;
            --dark-bg: #0f172a;
            --dark-card: #1e293b;
            --light-bg: #f8fafc;
            --white: #ffffff;
            --text: #1e293b;
            --text-light: #64748b;
            --border-color: #e2e8f0;
            --radius-lg: 1.5rem;
            --radius-md: 1rem;
            --radius-sm: 0.5rem;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--light-bg);
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--primary-dark);
        }

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

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ============ Navbar ============ */
        .navbar-custom {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            padding-top: 14px;
            padding-bottom: 14px;
            box-shadow: 0 1px 10px rgba(15, 23, 42, 0.04);
            transition: var(--transition);
        }

        .navbar-custom .navbar-brand {
            font-size: 1.32rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
        }

        .navbar-custom .navbar-brand i {
            color: var(--accent);
            margin-right: 4px;
        }

        .navbar-custom .navbar-nav .nav-link {
            font-weight: 600;
            color: var(--text-light);
            padding: 10px 18px;
            border-radius: 999px;
            transition: var(--transition);
            margin: 0 2px;
            font-size: 0.95rem;
        }

        .navbar-custom .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(79, 70, 229, 0.06);
        }

        .navbar-custom .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(79, 70, 229, 0.1);
            font-weight: 700;
        }

        .navbar-custom .navbar-toggler {
            border: none;
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            color: var(--primary);
        }

        .navbar-custom .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
        }

        .navbar-custom .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(79, 70, 229, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .navbar-custom .navbar-collapse {
                background: var(--white);
                border-radius: var(--radius-md);
                padding: 16px;
                margin-top: 12px;
                box-shadow: var(--shadow-md);
                border: 1px solid var(--border-color);
            }

            .navbar-custom .navbar-nav .nav-link {
                padding: 12px 16px;
            }

            .navbar-custom .btn-accent {
                width: 100%;
                margin-top: 12px;
                text-align: center;
            }
        }

        /* ============ Buttons ============ */
        .btn {
            border-radius: 999px;
            padding: 10px 24px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
        }

        .btn:focus {
            box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--white);
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
        }

        .btn-accent:hover {
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(249, 115, 22, 0.35);
        }

        .btn-primary-custom {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.28);
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(79, 70, 229, 0.32);
        }

        .btn-outline-custom {
            border: 2px solid rgba(255, 255, 255, 0.7);
            color: var(--white);
            background: transparent;
            padding: 8px 22px;
        }

        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--white);
            color: var(--white);
            transform: translateY(-2px);
        }

        /* ============ Page Hero Banner ============ */
        .page-hero {
            position: relative;
            padding: 140px 0 100px;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88), rgba(30, 41, 59, 0.82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: var(--white);
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -40px;
            width: 320px;
            height: 320px;
            background: rgba(6, 182, 212, 0.12);
            border-radius: 50%;
            filter: blur(60px);
        }

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

        .page-hero .badge-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 8px 18px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 20px;
            color: #e0f2fe;
        }

        .page-hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.18;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .page-hero p.lead {
            font-size: 1.15rem;
            max-width: 640px;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .page-hero .hero-stats {
            display: flex;
            gap: 26px;
            flex-wrap: wrap;
            margin-top: 30px;
        }

        .page-hero .hero-stats .stat-item {
            display: flex;
            flex-direction: column;
        }

        .page-hero .hero-stats .stat-item .num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-light);
        }

        .page-hero .hero-stats .stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }

        @media (max-width: 767px) {
            .page-hero {
                padding: 110px 0 70px;
            }

            .page-hero h1 {
                font-size: 2.2rem;
            }

            .page-hero .hero-stats {
                gap: 16px;
            }
        }

        /* ============ Section Content ============ */
        .section-padding {
            padding: 90px 0;
        }

        .section-padding-sm {
            padding: 60px 0;
        }

        .section-header {
            margin-bottom: 50px;
        }

        .section-header .tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(79, 70, 229, 0.08);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-light);
            max-width: 620px;
            font-size: 1.05rem;
        }

        @media (max-width: 767px) {
            .section-padding {
                padding: 60px 0;
            }

            .section-header h2 {
                font-size: 1.7rem;
            }
        }

        /* ============ Activity Cards ============ */
        .activity-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }

        .activity-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .activity-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 210px;
        }

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

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

        .activity-card .card-img-wrap .activity-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(249, 115, 22, 0.92);
            color: var(--white);
            font-weight: 700;
            font-size: 0.75rem;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }

        .activity-card .card-img-wrap .activity-tag-hot {
            background: rgba(239, 68, 68, 0.92);
        }

        .activity-card .card-img-wrap .activity-tag-new {
            background: rgba(79, 70, 229, 0.92);
        }

        .activity-card .card-body {
            padding: 24px;
        }

        .activity-card .card-body .activity-meta {
            display: flex;
            gap: 14px;
            align-items: center;
            font-size: 0.82rem;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .activity-card .card-body .activity-meta i {
            color: var(--secondary);
            margin-right: 4px;
        }

        .activity-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.35;
        }

        .activity-card .card-body p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        .activity-card .card-footer-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 24px;
            background: #f8fafc;
            border-top: 1px solid var(--border-color);
        }

        .activity-card .card-footer-bar .rewards {
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
        }

        .activity-card .card-footer-bar .btn-sm {
            padding: 6px 18px;
            font-size: 0.82rem;
        }

        /* ============ Calendar Timeline ============ */
        .timeline-section {
            background: var(--dark-bg);
            color: var(--white);
            position: relative;
            overflow: hidden;
        }

        .timeline-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.12;
        }

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

        .timeline-section .section-header h2 {
            color: var(--white);
        }

        .timeline-section .section-header p {
            color: rgba(255, 255, 255, 0.6);
        }

        .activity-timeline {
            position: relative;
            margin-top: 50px;
            padding-left: 30px;
        }

        .activity-timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 5px;
            bottom: 5px;
            width: 2px;
            background: linear-gradient(to bottom, var(--accent), var(--secondary));
            opacity: 0.5;
        }

        .timeline-item {
            position: relative;
            padding: 20px 28px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            margin-bottom: 24px;
            transition: var(--transition);
        }

        .timeline-item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.15);
            transform: translateX(4px);
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -25px;
            top: 50%;
            transform: translateY(-50%);
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent);
            border: 3px solid rgba(255, 255, 255, 0.2);
        }

        .timeline-item .time-label {
            font-size: 0.82rem;
            color: var(--accent-light);
            font-weight: 600;
            margin-bottom: 6px;
            letter-spacing: 0.04em;
        }

        .timeline-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--white);
        }

        .timeline-item p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            margin-bottom: 0;
            max-width: 620px;
        }

        .timeline-item .timeline-status {
            display: inline-block;
            margin-top: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 600;
        }

        .timeline-status.status-active {
            background: rgba(16, 185, 129, 0.15);
            color: #34d399;
            border: 1px solid rgba(16, 185, 129, 0.3);
        }

        .timeline-status.status-soon {
            background: rgba(245, 158, 11, 0.15);
            color: #fbbf24;
            border: 1px solid rgba(245, 158, 11, 0.3);
        }

        .timeline-status.status-ended {
            background: rgba(148, 163, 184, 0.15);
            color: #94a3b8;
            border: 1px solid rgba(148, 163, 184, 0.3);
        }

        /* ============ Rules Section ============ */
        .rules-card {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border-color);
            height: 100%;
            transition: var(--transition);
        }

        .rules-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(79, 70, 229, 0.3);
        }

        .rules-card .rule-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(79, 70, 229, 0.1);
            color: var(--primary);
            font-size: 1.2rem;
            margin-bottom: 14px;
        }

        .rules-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .rules-card p {
            color: var(--text-light);
            font-size: 0.88rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ============ Data Highlight Banner ============ */
        .data-highlight {
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.95), rgba(6, 182, 212, 0.9)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 70px 0;
            color: var(--white);
            position: relative;
        }

        .data-highlight .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .data-highlight .data-item {
            text-align: center;
            padding: 20px 10px;
        }

        .data-highlight .data-item .data-num {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .data-highlight .data-item .data-label {
            font-size: 0.95rem;
            opacity: 0.85;
        }

        @media (max-width: 991px) {
            .data-highlight .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .data-highlight .data-grid {
                grid-template-columns: 1fr;
            }

            .data-highlight .data-item .data-num {
                font-size: 2.2rem;
            }
        }

        /* ============ CTA Section ============ */
        .cta-section {
            background: var(--white);
            padding: 70px 0;
        }

        .cta-card {
            background: linear-gradient(135deg, #312e81 0%, #1e1b4b 100%);
            border-radius: var(--radius-lg);
            padding: 60px 50px;
            color: var(--white);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(249, 115, 22, 0.15);
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: rgba(6, 182, 212, 0.12);
        }

        .cta-card h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin-bottom: 28px;
            font-size: 1.05rem;
            position: relative;
            z-index: 1;
        }

        .cta-card .btn-accent {
            position: relative;
            z-index: 1;
        }

        @media (max-width: 767px) {
            .cta-card {
                padding: 40px 24px;
            }

            .cta-card h2 {
                font-size: 1.6rem;
            }
        }

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

        .faq-item {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 22px 28px;
            margin-bottom: 14px;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(79, 70, 229, 0.25);
            box-shadow: var(--shadow-sm);
        }

        .faq-item h3 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            position: relative;
        }

        .faq-item h3::before {
            content: '\f059';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--primary);
            margin-right: 10px;
            font-size: 1rem;
        }

        .faq-item p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
            margin: 0;
            padding-left: 30px;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 24px;
        }

        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--white);
            display: inline-block;
            margin-bottom: 14px;
        }

        .site-footer .footer-brand i {
            color: var(--accent);
            margin-right: 4px;
        }

        .site-footer p {
            font-size: 0.92rem;
            line-height: 1.7;
        }

        .site-footer h5 {
            color: var(--white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

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

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .site-footer ul li a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            margin-top: 50px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ============ Back to top ============ */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            z-index: 999;
            box-shadow: var(--shadow-md);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: var(--transition);
            border: none;
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-to-top:hover {
            background: var(--primary-dark);
            color: var(--white);
        }

/* roulang page: article */
:root {
            --color-primary: #0d1b2a;
            --color-secondary: #1b2838;
            --color-accent: #00d4ff;
            --color-accent-2: #ffb400;
            --color-bg: #f4f7fb;
            --color-card: #ffffff;
            --color-text: #1e293b;
            --color-muted: #64748b;
            --color-border: #e2e8f0;
            --radius-lg: 22px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(13, 27, 42, 0.06);
            --shadow-md: 0 8px 24px rgba(13, 27, 42, 0.08);
            --shadow-lg: 0 20px 50px rgba(13, 27, 42, 0.14);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.75;
            background: var(--color-bg);
            color: var(--color-text);
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
        }

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

        a:hover {
            color: #00b8d9;
        }

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .navbar-custom {
            background: rgba(13, 27, 42, 0.92);
            backdrop-filter: blur(14px);
            padding: 14px 0;
            box-shadow: 0 4px 24px rgba(13, 27, 42, 0.12);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            position: sticky;
            top: 0;
            z-index: 1050;
        }

        .navbar-custom .navbar-brand {
            color: #ffffff;
            font-weight: 800;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.5px;
        }

        .navbar-custom .navbar-brand i {
            color: var(--color-accent);
            font-size: 1.5rem;
        }

        .navbar-custom .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .navbar-custom .navbar-nav .nav-link:hover,
        .navbar-custom .navbar-nav .nav-link.active {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        .navbar-custom .navbar-nav .nav-link.active {
            box-shadow: inset 0 -2px 0 var(--color-accent);
        }

        .btn-accent {
            background: var(--color-accent-2);
            color: #0d1b2a;
            font-weight: 700;
            border: none;
            border-radius: 50px;
            padding: 10px 26px;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(255, 180, 0, 0.3);
        }

        .btn-accent:hover {
            background: #ffc21a;
            color: #0d1b2a;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 180, 0, 0.4);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffffff;
        }

        .navbar-toggler {
            border-color: rgba(255, 255, 255, 0.3);
            padding: 6px 10px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            color: #ffffff;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.92), rgba(13, 27, 42, 0.72)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-bottom: 4px solid var(--color-accent);
        }

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

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }

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

        .breadcrumb-nav i {
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb-nav .current {
            color: #ffffff;
            font-weight: 500;
            max-width: 280px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-hero h1 {
            font-size: clamp(1.8rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 20px;
            max-width: 800px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.85);
        }

        .article-meta .badge {
            background: rgba(0, 212, 255, 0.2);
            color: var(--color-accent);
            font-weight: 600;
            padding: 6px 14px;
            border: 1px solid rgba(0, 212, 255, 0.4);
            border-radius: 50px;
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta i {
            color: var(--color-accent);
        }

        .article-content-section {
            padding: 60px 0;
        }

        .article-main-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            border: 1px solid rgba(226, 232, 240, 0.6);
        }

        .article-header-img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }

        .article-body {
            padding: 40px 42px 48px;
        }

        .article-body h2 {
            font-size: 1.7rem;
            font-weight: 700;
            margin: 32px 0 16px;
            color: var(--color-primary);
            position: relative;
            padding-left: 18px;
        }

        .article-body h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 5px;
            background: var(--color-accent);
            border-radius: 4px;
        }

        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin: 24px 0 12px;
            color: var(--color-primary);
        }

        .article-body p {
            margin-bottom: 16px;
            color: #334155;
            line-height: 1.9;
        }

        .article-body ul,
        .article-body ol {
            margin: 16px 0;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 8px;
            line-height: 1.8;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-body blockquote {
            border-left: 4px solid var(--color-accent);
            background: rgba(0, 212, 255, 0.06);
            padding: 16px 24px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 24px 0;
            color: var(--color-muted);
            font-style: normal;
        }

        .article-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            border-top: 1px solid var(--color-border);
            padding-top: 28px;
            margin-top: 36px;
        }

        .article-tags .tag {
            background: #f1f5f9;
            color: var(--color-muted);
            font-size: 0.85rem;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 50px;
            transition: var(--transition);
        }

        .article-tags .tag:hover {
            background: var(--color-accent);
            color: #fff;
        }

        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }

        .not-found-box i {
            font-size: 3.5rem;
            color: var(--color-accent);
            margin-bottom: 20px;
        }

        .not-found-box h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .not-found-box p {
            color: var(--color-muted);
            margin-bottom: 24px;
        }

        .sidebar-widget {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(226, 232, 240, 0.6);
            padding: 28px;
            margin-bottom: 24px;
        }

        .sidebar-widget .widget-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-widget .widget-title::after {
            content: '';
            flex: 1;
            height: 2px;
            background: linear-gradient(90deg, var(--color-accent), transparent);
            border-radius: 2px;
        }

        .sidebar-widget .widget-title i {
            color: var(--color-accent);
        }

        .info-widget {
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            color: #ffffff;
            text-align: center;
        }

        .info-widget .info-icon {
            width: 70px;
            height: 70px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--color-accent);
            margin-bottom: 16px;
        }

        .info-widget h4 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #ffffff;
        }

        .info-widget p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 18px;
            line-height: 1.7;
        }

        .info-widget .btn-widget {
            background: var(--color-accent);
            color: var(--color-primary);
            border-radius: 50px;
            font-weight: 700;
            padding: 8px 24px;
            font-size: 0.9rem;
            border: none;
            transition: var(--transition);
        }

        .info-widget .btn-widget:hover {
            background: #33dfff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 212, 255, 0.35);
        }

        .category-widget .category-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            background: #f8fafc;
            border: 1px solid rgba(226, 232, 240, 0.5);
            margin-bottom: 10px;
            color: var(--color-text);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .category-widget .category-item:hover {
            background: var(--color-primary);
            color: #ffffff;
            transform: translateX(4px);
            border-color: var(--color-primary);
        }

        .category-widget .category-item i {
            color: var(--color-accent);
        }

        .category-widget .category-item .count {
            background: rgba(0, 212, 255, 0.12);
            color: var(--color-accent);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 50px;
        }

        .latest-widget .latest-item {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--color-border);
            transition: var(--transition);
        }

        .latest-widget .latest-item:last-child {
            border-bottom: none;
        }

        .latest-widget .latest-item .latest-img {
            width: 74px;
            height: 56px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .latest-widget .latest-item .latest-info {
            min-width: 0;
        }

        .latest-widget .latest-item .latest-info a {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
            display: block;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .latest-widget .latest-item .latest-info a:hover {
            color: var(--color-accent);
        }

        .latest-widget .latest-item .latest-info .latest-time {
            font-size: 0.8rem;
            color: var(--color-muted);
            margin-top: 4px;
        }

        .related-section {
            background: var(--color-card);
            border-top: 1px solid var(--color-border);
            padding: 60px 0;
        }

        .section-heading {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-heading .section-tag {
            display: inline-block;
            background: rgba(0, 212, 255, 0.1);
            color: var(--color-accent);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 14px;
        }

        .section-heading h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 10px;
        }

        .section-heading p {
            color: var(--color-muted);
            max-width: 560px;
            margin: 0 auto;
        }

        .related-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            height: 100%;
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition);
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(0, 212, 255, 0.3);
        }

        .related-card .related-thumb {
            height: 180px;
            overflow: hidden;
        }

        .related-card .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
            border-radius: 0;
        }

        .related-card:hover .related-thumb img {
            transform: scale(1.06);
        }

        .related-card .related-body {
            padding: 24px 22px 28px;
        }

        .related-card .related-body .badge {
            background: rgba(255, 180, 0, 0.15);
            color: #b45309;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 12px;
        }

        .related-card .related-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .related-card .related-body h3 a {
            color: var(--color-primary);
        }

        .related-card .related-body h3 a:hover {
            color: var(--color-accent);
        }

        .related-card .related-body p {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.6;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .related-body .related-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--color-muted);
        }

        .related-card .related-body .related-meta i {
            color: var(--color-accent);
            margin-right: 4px;
        }

        .cta-section {
            background: linear-gradient(135deg, var(--color-primary), #0f2744 60%, var(--color-secondary));
            color: #ffffff;
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.2), transparent 70%);
            border-radius: 50%;
        }

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

        .cta-content {
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            margin-bottom: 30px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .cta-buttons .btn-lg {
            padding: 14px 38px;
            font-size: 1.05rem;
            border-radius: 50px;
            font-weight: 700;
        }

        .site-footer {
            background: #0a1420;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 28px;
            border-top: 3px solid var(--color-accent);
        }

        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #ffffff;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .site-footer .footer-brand i {
            color: var(--color-accent);
        }

        .site-footer p {
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .site-footer h5 {
            color: #ffffff;
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .site-footer h5::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 32px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }

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

        .site-footer ul a {
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
            font-size: 0.92rem;
        }

        .site-footer ul a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            margin-top: 40px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }

        @media (max-width: 991.98px) {
            .navbar-custom .navbar-collapse {
                background: rgba(13, 27, 42, 0.98);
                border-radius: var(--radius-md);
                padding: 20px;
                margin-top: 14px;
                border: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: var(--shadow-lg);
            }

            .navbar-custom .btn-accent {
                margin-top: 14px;
                width: 100%;
                text-align: center;
            }

            .article-body {
                padding: 28px 24px 36px;
            }

            .article-header-img {
                height: 240px;
            }

            .sidebar-widget {
                margin-top: 16px;
            }
        }

        @media (max-width: 767.98px) {
            .article-hero {
                padding: 48px 0 40px;
            }

            .article-hero h1 {
                font-size: 1.5rem;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.85rem;
            }

            .related-card {
                margin-bottom: 20px;
            }

            .cta-buttons .btn-lg {
                width: 100%;
            }
        }

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

            .article-body {
                padding: 24px 18px 30px;
            }

            .article-header-img {
                height: 180px;
            }

            .article-body h2 {
                font-size: 1.3rem;
            }

            .breadcrumb-nav .current {
                max-width: 160px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0d1b2a;
            --primary-light: #1b2838;
            --accent: #ff7a1a;
            --accent-2: #f59e0b;
            --bg: #f5f7fb;
            --card-bg: #ffffff;
            --text: #1a1a2e;
            --text-muted: #6b7280;
            --border: #e5e7eb;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
            --section-space: 5rem;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button:focus,
        a:focus,
        input:focus {
            outline: 3px solid rgba(255, 122, 26, 0.35);
            outline-offset: 2px;
        }

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

        .bg-light {
            background: #eef1f6;
        }

        /* ===== 导航栏 ===== */
        .navbar-custom {
            background: #0b1522;
            padding: 0.75rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
            position: sticky;
            top: 0;
            z-index: 1050;
        }

        .navbar-custom .navbar-brand {
            font-size: 1.25rem;
            font-weight: 800;
            color: #ffffff;
        }

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

        .navbar-custom .navbar-nav .nav-link {
            color: #b0b8c4;
            font-weight: 500;
            padding: 0.6rem 1rem;
            border-radius: 8px;
            transition: var(--transition);
        }

        .navbar-custom .navbar-nav .nav-link:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        .navbar-custom .navbar-nav .nav-link.active {
            color: var(--accent);
            font-weight: 700;
            background: rgba(255, 122, 26, 0.12);
        }

        .navbar-custom .btn-accent {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            font-weight: 700;
            padding: 0.55rem 1.4rem;
            border-radius: 50px;
            box-shadow: 0 4px 16px rgba(255, 122, 26, 0.4);
            transition: var(--transition);
        }

        .navbar-custom .btn-accent:hover {
            background: #e56a0a;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 122, 26, 0.5);
        }

        .navbar-custom .navbar-toggler {
            border-color: rgba(255, 255, 255, 0.4);
            padding: 0.3rem 0.6rem;
        }

        .navbar-custom .navbar-toggler:focus {
            box-shadow: none;
        }

        .navbar-custom .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== 页面 Hero ===== */
        .page-hero {
            position: relative;
            padding: 5.5rem 0;
            background: linear-gradient(120deg, rgba(8, 15, 26, 0.92), rgba(13, 27, 42, 0.78)),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            border-bottom: 4px solid var(--accent);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 122, 26, 0.18);
            border: 1px solid rgba(255, 122, 26, 0.5);
            color: var(--accent-2);
            padding: 0.35rem 1.1rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 1.2rem;
        }

        .page-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1rem;
        }

        .text-accent {
            color: var(--accent);
        }

        .hero-lead {
            font-size: 1.08rem;
            line-height: 1.8;
            opacity: 0.9;
            max-width: 560px;
            margin-bottom: 1.8rem;
        }

        .hero-buttons .btn {
            border-radius: 50px;
            padding: 0.7rem 1.8rem;
            font-weight: 600;
        }

        .btn-accent {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            box-shadow: 0 6px 20px rgba(255, 122, 26, 0.4);
            transition: var(--transition);
        }

        .btn-accent:hover {
            background: #e56a0a;
            border-color: #e56a0a;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline-light {
            border-radius: 50px;
            border-width: 2px;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .hero-stats-card {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: var(--radius);
            padding: 2rem;
            box-shadow: var(--shadow-lg);
        }

        .stat-item {
            text-align: center;
            margin-bottom: 1.2rem;
        }

        .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent-2);
            line-height: 1.1;
        }

        .stat-label {
            color: #d0d5dd;
            font-size: 0.95rem;
            margin-top: 0.2rem;
        }

        .divider {
            height: 1px;
            background: rgba(255, 255, 255, 0.2);
            margin: 1.2rem 0;
        }

        .stat-row {
            display: flex;
            justify-content: space-around;
            text-align: center;
            margin-bottom: 1rem;
        }

        .stat-mini .mini-num {
            display: block;
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
        }

        .stat-mini .mini-label {
            color: #aab3bf;
            font-size: 0.85rem;
        }

        .hero-stats-card p {
            color: #aab3bf;
            text-align: center;
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* ===== 板块标题 ===== */
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 3rem;
        }

        .section-tag {
            display: inline-block;
            background: rgba(255, 122, 26, 0.12);
            border: 1px solid rgba(255, 122, 26, 0.3);
            color: var(--accent);
            padding: 0.25rem 1rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 0.8rem;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
            color: var(--text);
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* ===== 热门活动卡片 ===== */
        .activities-section {
            background: var(--bg);
        }

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

        .activity-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(255, 122, 26, 0.4);
        }

        .activity-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

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

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

        .activity-img-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.5), transparent 60%);
        }

        .activity-tag {
            position: absolute;
            top: 0.85rem;
            left: 0.85rem;
            background: var(--accent);
            color: #fff;
            padding: 0.25rem 0.8rem;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            z-index: 2;
            box-shadow: 0 4px 12px rgba(255, 122, 26, 0.4);
        }

        .activity-body {
            padding: 1.4rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .activity-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }

        .activity-body p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
            flex: 1;
        }

        .activity-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        .btn-outline-accent {
            border: 1.5px solid var(--accent);
            color: var(--accent);
            border-radius: 50px;
            font-weight: 600;
            padding: 0.45rem 1rem;
            transition: var(--transition);
        }

        .btn-outline-accent:hover {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 122, 26, 0.35);
        }

        /* ===== 福利类型图标卡 ===== */
        .perks-section {
            background: #eef1f6;
        }

        .perk-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
        }

        .perk-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(255, 122, 26, 0.35);
        }

        .perk-icon {
            width: 64px;
            height: 64px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--accent), var(--accent-2));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 1rem;
            box-shadow: 0 8px 20px rgba(255, 122, 26, 0.35);
        }

        .perk-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .perk-card p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== 参与流程 ===== */
        .steps-section {
            background: var(--bg);
        }

        .step-item {
            position: relative;
            text-align: center;
            padding: 1.5rem 1rem;
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            height: 100%;
            transition: var(--transition);
        }

        .step-item:hover {
            box-shadow: var(--shadow-lg);
            border-color: rgba(255, 122, 26, 0.3);
        }

        .step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 1rem;
            box-shadow: 0 0 0 6px rgba(255, 122, 26, 0.2);
        }

        .step-item h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .step-item p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== 深色数据区块 ===== */
        .dark-stats {
            background: linear-gradient(135deg, #0b1522, #131f33);
            color: #fff;
        }

        .dark-stats .section-head h2 {
            color: #fff;
        }

        .dark-stats .section-head p {
            color: #aab3bf;
        }

        .data-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: var(--transition);
            height: 100%;
        }

        .data-card:hover {
            border-color: rgba(255, 122, 26, 0.5);
            transform: translateY(-4px);
        }

        .data-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent-2);
            line-height: 1.2;
        }

        .data-label {
            color: #b7c0cc;
            font-size: 0.9rem;
            margin-top: 0.3rem;
        }

        .progress-track {
            margin-top: 1.2rem;
            background: rgba(255, 255, 255, 0.1);
            height: 6px;
            border-radius: 50px;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            border-radius: 50px;
            background: linear-gradient(90deg, var(--accent), var(--accent-2));
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #eef1f6;
        }

        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 1rem;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            padding: 1.2rem 1.4rem;
            background: var(--card-bg);
            color: var(--text);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--accent);
            background: rgba(255, 122, 26, 0.04);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
        }

        .faq-accordion .accordion-body {
            padding: 1rem 1.4rem 1.4rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 5rem 0;
            background: linear-gradient(120deg, rgba(13, 27, 42, 0.94), rgba(30, 20, 40, 0.85)),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }

        .cta-section p {
            color: #d0d5dd;
            max-width: 560px;
            margin: 0 auto 2rem;
            font-size: 1.05rem;
        }

        .cta-section .btn {
            padding: 0.8rem 2.2rem;
            font-size: 1.05rem;
            border-radius: 50px;
        }

        .cta-section .btn-outline-light {
            margin-left: 0.6rem;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0b1522;
            color: #aab3bf;
            padding: 3.5rem 0 0;
        }

        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 0.8rem;
        }

        .site-footer .footer-brand i {
            color: var(--accent);
        }

        .site-footer p {
            font-size: 0.92rem;
            line-height: 1.7;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.1rem;
        }

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

        .site-footer ul li a {
            color: #aab3bf;
            font-size: 0.9rem;
        }

        .site-footer ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 2.5rem;
            padding: 1.4rem 0;
            text-align: center;
            font-size: 0.85rem;
        }

        .footer-bottom p {
            margin-bottom: 0.2rem;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --section-space: 4rem;
            }

            .page-hero {
                padding: 4rem 0;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-space: 3rem;
            }

            .navbar-custom .navbar-nav {
                margin-top: 0.8rem;
            }

            .navbar-custom .navbar-nav .nav-link {
                padding: 0.5rem 0.8rem;
            }

            .navbar-custom .btn-accent {
                margin-top: 0.5rem;
                margin-bottom: 0.5rem;
            }

            .page-hero {
                padding: 3rem 0;
            }

            .hero-stats-card {
                margin-top: 2rem;
            }

            .stat-num {
                font-size: 2.2rem;
            }

            .section-head h2 {
                font-size: 1.6rem;
            }

            .cta-section .btn-outline-light {
                margin-left: 0;
                margin-top: 0.6rem;
            }

            .footer-bottom {
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.5rem;
            }

            .hero-buttons .btn {
                width: 100%;
                margin-bottom: 0.5rem;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .step-num {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1e2a5a;
            --primary-dark: #141c3f;
            --primary-light: #2d3e7a;
            --accent: #ff6b2c;
            --accent-dark: #e8551a;
            --accent-light: rgba(255, 107, 44, .12);
            --teal: #00b8a9;
            --bg-light: #f5f7fc;
            --bg-dark: #0d1330;
            --bg-white: #ffffff;
            --text-main: #1d2333;
            --text-muted: #64708a;
            --border-color: #e6eaf2;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 4px 14px rgba(30, 42, 90, .06);
            --shadow-md: 0 12px 32px rgba(30, 42, 90, .10);
            --shadow-lg: 0 24px 60px rgba(30, 42, 90, .16);
            --transition: all .3s ease;
        }

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

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
            color: var(--text-main);
            line-height: 1.7;
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            max-width: 1200px;
        }

        /* ===== 导航 ===== */
        .navbar-custom {
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 14px 0;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1040;
        }

        .navbar-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary) !important;
            letter-spacing: .3px;
        }

        .navbar-brand i {
            color: var(--accent);
            margin-right: 6px;
        }

        .navbar-custom .nav-link {
            font-weight: 600;
            color: var(--text-main);
            padding: 8px 18px !important;
            border-radius: 50px;
            transition: var(--transition);
            font-size: .95rem;
        }

        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--accent);
            background: var(--accent-light);
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(255, 107, 44, .2);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(30,42,90,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
        }

        .btn-accent {
            background: var(--accent);
            border: none;
            color: #fff;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 6px 16px rgba(255, 107, 44, .28);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(255, 107, 44, .32);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, .5);
            color: #fff;
            border-radius: 50px;
            padding: 10px 22px;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 内页横幅 ===== */
        .page-hero {
            min-height: 480px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 120px 0 150px;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(13, 19, 48, .94), rgba(30, 42, 90, .86));
        }

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

        .breadcrumb-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            background: rgba(255, 255, 255, .10);
            border-radius: 50px;
            color: rgba(255, 255, 255, .75);
            font-size: .82rem;
            margin-bottom: 22px;
            border: 1px solid rgba(255, 255, 255, .14);
        }

        .breadcrumb-custom a:hover {
            color: #fff;
        }

        .breadcrumb-custom .sep {
            opacity: .5;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, .14);
            backdrop-filter: blur(8px);
            color: #ffe3d6;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: .82rem;
            font-weight: 600;
            letter-spacing: .8px;
            border: 1px solid rgba(255, 255, 255, .2);
            margin-bottom: 18px;
        }

        .page-hero h1 {
            font-size: clamp(2.1rem, 5vw, 3.2rem);
            font-weight: 800;
            color: #fff;
            margin: 0 0 16px;
            line-height: 1.25;
            letter-spacing: 1px;
        }

        .page-hero .lead {
            color: rgba(255, 255, 255, .82);
            font-size: 1.05rem;
            max-width: 680px;
            margin: 0 auto 30px;
        }

        .hero-actions .btn {
            margin: 6px 4px;
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            padding: 0 0 20px;
            margin-top: -70px;
            position: relative;
            z-index: 5;
        }

        .stat-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            text-align: center;
            padding: 32px 18px;
            transition: var(--transition);
            height: 100%;
        }

        .stat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
        }

        .stat-num {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            font-family: "Segoe UI", Impact, sans-serif;
        }

        .stat-label {
            color: var(--text-muted);
            font-size: .92rem;
            margin-top: 6px;
        }

        /* ===== 板块标题 ===== */
        .section-head {
            margin-bottom: 50px;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: var(--accent-light);
            color: var(--accent);
            border-radius: 50px;
            font-size: .82rem;
            font-weight: 700;
            letter-spacing: .6px;
        }

        .section-head h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            margin: 14px 0 10px;
            color: var(--text-main);
        }

        .section-head p {
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto;
        }

        /* ===== 注册流程 ===== */
        .steps-section {
            padding: 90px 0;
            background: var(--bg-light);
        }

        .step-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px 28px 30px;
            text-align: center;
            position: relative;
            height: 100%;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .step-card:hover {
            transform: translateY(-8px);
            border-color: transparent;
            box-shadow: var(--shadow-md);
        }

        .step-card::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), #ffab40);
            opacity: 0;
            transition: var(--transition);
        }

        .step-card:hover::after {
            opacity: 1;
        }

        .step-num {
            position: absolute;
            right: 20px;
            top: 14px;
            font-size: 3.6rem;
            font-weight: 800;
            color: rgba(30, 42, 90, .08);
            line-height: 1;
            font-family: "Segoe UI", Impact, sans-serif;
        }

        .step-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 22px;
            font-size: 1.7rem;
            color: var(--accent);
            background: var(--accent-light);
        }

        .step-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .step-card p {
            color: var(--text-muted);
            font-size: .92rem;
            margin-bottom: 0;
        }

        /* ===== 登录方式 ===== */
        .login-methods {
            padding: 90px 0;
            background: #fff;
        }

        .method-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .method-image-wrap img {
            width: 100%;
            display: block;
            object-fit: cover;
            min-height: 340px;
        }

        .float-card {
            position: absolute;
            left: 18px;
            bottom: 18px;
            background: rgba(255, 255, 255, .95);
            border-radius: 14px;
            padding: 12px 18px;
            font-size: .85rem;
            font-weight: 700;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .float-card i {
            color: var(--teal);
            font-size: 1.1rem;
        }

        .method-item {
            display: flex;
            gap: 16px;
            padding: 18px 22px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: var(--bg-light);
            transition: var(--transition);
            margin-bottom: 14px;
        }

        .method-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }

        .method-item>i {
            width: 48px;
            height: 48px;
            min-width: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 1.2rem;
        }

        .method-item h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 2px;
        }

        .method-item p {
            font-size: .88rem;
            color: var(--text-muted);
            margin: 0;
        }

        .login-methods h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            margin: 14px 0 8px;
            color: var(--text-main);
        }

        /* ===== 安全提示 ===== */
        .safe-tips {
            padding: 90px 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .safe-tips::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(13, 19, 48, .90);
        }

        .safe-tips .container {
            position: relative;
            z-index: 2;
        }

        .safe-tips h2 {
            color: #fff;
            font-weight: 800;
            margin-top: 14px;
        }

        .section-tag-light {
            background: rgba(255, 107, 44, .18);
            color: #ffb38f;
        }

        .safe-card {
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }

        .safe-card:hover {
            background: rgba(255, 255, 255, .12);
            transform: translateY(-5px);
        }

        .safe-card i {
            font-size: 1.7rem;
            color: #ffb38f;
            margin-bottom: 10px;
        }

        .safe-card h4 {
            color: #fff;
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .safe-card p {
            color: rgba(255, 255, 255, .72);
            font-size: .88rem;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 90px 0;
            background: var(--bg-light);
        }

        .custom-accordion {
            max-width: 820px;
            margin: 0 auto;
        }

        .custom-accordion .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            box-shadow: var(--shadow-sm);
            background: #fff;
            overflow: hidden;
        }

        .custom-accordion .accordion-button {
            padding: 18px 24px;
            font-weight: 700;
            color: var(--text-main);
            background: #fff;
            font-size: 1rem;
            border: none;
        }

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

        .custom-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 107, 44, .18);
        }

        .custom-accordion .accordion-button::after {
            background-size: 14px;
            opacity: .5;
        }

        .custom-accordion .accordion-body {
            padding: 18px 24px 22px;
            color: var(--text-muted);
            font-size: .93rem;
            border-top: 1px solid var(--border-color);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding-bottom: 90px;
            background: var(--bg-light);
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-lg);
            padding: 70px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            margin-top: 90px;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: rgba(255, 107, 44, .2);
            filter: blur(30px);
        }

        .cta-box::after {
            content: "";
            position: absolute;
            bottom: -60%;
            left: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(0, 184, 169, .18);
            filter: blur(40px);
        }

        .cta-box h2 {
            color: #fff;
            font-weight: 800;
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            position: relative;
            z-index: 2;
        }

        .cta-box p {
            color: rgba(255, 255, 255, .78);
            max-width: 520px;
            margin: 14px auto 28px;
            position: relative;
            z-index: 2;
        }

        .cta-box .btn {
            position: relative;
            z-index: 2;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, .72);
            padding: 64px 0 0;
            border-top: 3px solid var(--accent);
        }

        .footer-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
        }

        .footer-brand i {
            color: var(--accent);
            margin-right: 6px;
        }

        .site-footer p {
            font-size: .9rem;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .site-footer h5::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .site-footer ul li a {
            color: rgba(255, 255, 255, .68);
            font-size: .9rem;
            transition: var(--transition);
        }

        .site-footer ul li a:hover {
            color: #ffb38f;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            margin-top: 40px;
            padding: 16px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: .85rem;
            color: rgba(255, 255, 255, .5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .navbar-custom .navbar-collapse {
                background: #fff;
                border-radius: var(--radius-md);
                padding: 16px;
                margin-top: 10px;
                box-shadow: var(--shadow-md);
                border: 1px solid var(--border-color);
            }

            .navbar-custom .nav-link {
                padding: 10px 16px !important;
            }

            .navbar-custom .btn-accent {
                margin-top: 10px;
            }

            .page-hero {
                min-height: auto;
                padding: 90px 0 140px;
            }

            .steps-section,
            .login-methods,
            .safe-tips,
            .faq-section {
                padding: 70px 0;
            }

            .cta-box {
                margin-top: 70px;
            }
        }

        @media (max-width: 767.98px) {
            .page-hero {
                padding: 70px 0 130px;
            }

            .page-hero h1 {
                font-size: 1.9rem;
            }

            .stats-section {
                margin-top: -80px;
            }

            .stat-num {
                font-size: 1.6rem;
            }

            .step-card {
                margin-bottom: 20px;
            }

            .cta-box {
                padding: 50px 24px;
                margin-top: 60px;
            }
        }

        @media (max-width: 575.98px) {
            .navbar-brand {
                font-size: 1.1rem;
            }

            .page-hero .lead {
                font-size: .95rem;
            }

            .section-head h2 {
                font-size: 1.5rem;
            }

            .method-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .float-card {
                padding: 10px 14px;
                font-size: .78rem;
            }

            .stat-card {
                padding: 24px 12px;
            }

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