/* roulang page: index */
:root {
            --primary: #e63946;
            --primary-dark: #b71c2c;
            --primary-light: #ff6b81;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg: #f5f6fa;
            --bg-white: #ffffff;
            --bg-dark: #121820;
            --text-dark: #16213e;
            --text-body: #41506b;
            --text-light: #8492a6;
            --border: #e8ecf1;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 12px rgba(22, 33, 62, .06);
            --shadow: 0 6px 24px rgba(22, 33, 62, .08);
            --shadow-lg: 0 16px 48px rgba(22, 33, 62, .14);
            --transition: all .3s cubic-bezier(.25, .46, .45, .94);
            --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Microsoft YaHei', 'PingFang SC', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, .82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            box-shadow: 0 2px 24px rgba(0, 0, 0, .05);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, .96);
            box-shadow: 0 4px 28px rgba(0, 0, 0, .08);
        }

        .navbar {
            padding: 12px 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 900;
            color: var(--secondary) !important;
            letter-spacing: .5px;
        }

        .brand-mark {
            width: 42px;
            height: 42px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            box-shadow: 0 4px 14px rgba(230, 57, 70, .35);
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 1.18rem;
            font-weight: 900;
            background: linear-gradient(120deg, var(--secondary), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(230, 57, 70, .1);
            color: var(--primary);
            font-size: .65rem;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 3px 8px;
            border-radius: 20px;
            margin-left: 4px;
        }

        .live-badge .live-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            animation: pulse 1.4s ease infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .5;
                transform: scale(1.4);
            }
        }

        .navbar .nav-link {
            color: var(--text-body) !important;
            font-weight: 500;
            padding: 8px 16px !important;
            margin: 0 2px;
            border-radius: 10px;
            position: relative;
            font-size: .95rem;
            transition: var(--transition);
        }

        .navbar .nav-link::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
            transition: var(--transition);
        }

        .navbar .nav-link:hover,
        .navbar .nav-link.active {
            color: var(--primary) !important;
            background: rgba(230, 57, 70, .06);
        }

        .navbar .nav-link:hover::after,
        .navbar .nav-link.active::after {
            width: 20px;
        }

        .btn-nav {
            padding: 10px 26px;
            border-radius: 12px;
            font-weight: 700;
            font-size: .9rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            border: none;
            box-shadow: 0 4px 14px rgba(230, 57, 70, .3);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(230, 57, 70, .4);
            color: #fff !important;
        }

        .navbar-toggler {
            border: none;
            border-radius: 10px;
            padding: 8px 10px;
            background: transparent;
        }

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

        .navbar-toggler .hamburger-icon {
            font-size: 1.5rem;
            color: var(--secondary);
        }

        .hero {
            position: relative;
            min-height: 680px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(18, 24, 32, .94) 0%, rgba(29, 53, 87, .88) 55%, rgba(230, 57, 70, .72) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            padding: 150px 0 100px;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 650px;
            height: 650px;
            background: radial-gradient(circle, rgba(230, 57, 70, .18) 0%, transparent 70%);
            filter: blur(50px);
            z-index: 0;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(69, 123, 157, .25) 0%, transparent 70%);
            filter: blur(40px);
            z-index: 0;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 32px;
            background: rgba(255, 255, 255, .13);
            border: 1px solid rgba(255, 255, 255, .2);
            backdrop-filter: blur(8px);
            font-size: .85rem;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 28px;
        }

        .hero-badge .hero-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #2ecc71;
            box-shadow: 0 0 12px rgba(46, 204, 113, .7);
            animation: pulse 1.5s ease infinite;
        }

        .hero-title {
            font-size: clamp(2rem, 4.5vw, 3.6rem);
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: 1px;
            color: #fff;
        }

        .hero-title .highlight {
            color: var(--primary-light);
            position: relative;
            background: linear-gradient(90deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.12rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
            max-width: 580px;
            margin-bottom: 36px;
        }

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

        .btn-primary-custom {
            padding: 14px 34px;
            border-radius: 14px;
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            box-shadow: 0 8px 28px rgba(230, 57, 70, .38);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(230, 57, 70, .46);
            color: #fff;
        }

        .btn-outline-light-custom {
            padding: 14px 34px;
            border-radius: 14px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, .3);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, .14);
            border-color: rgba(255, 255, 255, .6);
            transform: translateY(-3px);
            color: #fff;
        }

        .hero-metrics {
            display: flex;
            gap: 36px;
            margin-top: 60px;
            flex-wrap: wrap;
        }

        .hero-metric {
            text-align: center;
        }

        .hero-metric .metric-value {
            font-size: 1.8rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
        }

        .hero-metric .metric-label {
            font-size: .82rem;
            color: rgba(255, 255, 255, .65);
            letter-spacing: 1px;
        }

        .section {
            padding: 96px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 32px;
            background: rgba(230, 57, 70, .08);
            color: var(--primary);
            font-size: .85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 18px;
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 900;
            color: var(--text-dark);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 48px;
            line-height: 1.8;
        }

        .text-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            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(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

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

        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 22px;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            color: #fff;
            box-shadow: 0 8px 22px rgba(29, 53, 87, .28);
        }

        .feature-card:nth-child(2) .feature-icon {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 8px 22px rgba(230, 57, 70, .28);
        }

        .feature-card:nth-child(3) .feature-icon {
            background: linear-gradient(135deg, var(--accent), #e67e22);
            box-shadow: 0 8px 22px rgba(244, 162, 97, .32);
        }

        .feature-card:nth-child(4) .feature-icon {
            background: linear-gradient(135deg, #2ecc71, #27ae60);
            box-shadow: 0 8px 22px rgba(46, 204, 113, .32);
        }

        .feature-title {
            font-size: 1.18rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }

        .feature-desc {
            font-size: .93rem;
            line-height: 1.75;
            color: var(--text-light);
            margin-bottom: 0;
        }

        .category-section {
            background: var(--bg-white);
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow);
            transition: var(--transition);
            cursor: pointer;
            margin-bottom: 24px;
        }

        .category-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
        }

        .category-card .card-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .7s ease;
        }

        .category-card:hover .card-bg {
            transform: scale(1.08);
        }

        .category-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(18, 24, 32, .92) 0%, rgba(18, 24, 32, .35) 55%, transparent 100%);
            z-index: 1;
        }

        .category-card-body {
            position: relative;
            z-index: 2;
            padding: 28px;
            color: #fff;
            width: 100%;
        }

        .category-card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 24px;
            background: rgba(255, 255, 255, .18);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, .25);
            font-size: .78rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }

        .category-card-title {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .category-card-desc {
            font-size: .88rem;
            color: rgba(255, 255, 255, .76);
            margin-bottom: 18px;
            line-height: 1.6;
        }

        .category-card-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .9rem;
            font-weight: 700;
            color: #fff;
            transition: var(--transition);
        }

        .category-card-btn i {
            transition: transform .3s ease;
        }

        .category-card:hover .category-card-btn i {
            transform: translateX(5px);
        }

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

        .news-card {
            display: flex;
            gap: 16px;
            padding: 22px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }

        .news-card:hover {
            border-color: transparent;
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
        }

        .news-icon {
            width: 52px;
            height: 52px;
            min-width: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(230, 57, 70, .12), rgba(230, 57, 70, .06));
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
        }

        .news-content {
            flex: 1;
        }

        .news-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: .75rem;
            font-weight: 600;
            background: rgba(230, 57, 70, .08);
            color: var(--primary);
            margin-bottom: 8px;
        }

        .news-content h3 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
            line-height: 1.5;
            transition: var(--transition);
        }

        .news-card:hover .news-content h3 {
            color: var(--primary);
        }

        .news-content p {
            font-size: .85rem;
            color: var(--text-light);
            margin-bottom: 10px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: .8rem;
            color: var(--text-light);
        }

        .news-meta i {
            margin-right: 4px;
            color: var(--primary);
        }

        .empty-tip {
            text-align: center;
            padding: 48px 24px;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
            color: var(--text-light);
            font-size: .95rem;
        }

        .stats-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #0f1d36 100%);
            padding: 80px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 400px;
            background: radial-gradient(circle, rgba(230, 57, 70, .2) 0%, transparent 70%);
        }

        .stat-item {
            text-align: center;
            padding: 32px 20px;
            position: relative;
        }

        .stat-item::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            height: 60%;
            width: 1px;
            background: rgba(255, 255, 255, .12);
        }

        .stat-item:last-child::after {
            display: none;
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 8px;
            background: linear-gradient(135deg, #ffffff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-label {
            font-size: .95rem;
            color: rgba(255, 255, 255, .7);
            font-weight: 500;
        }

        .process-section {
            background: var(--bg-white);
        }

        .step-item {
            position: relative;
            padding: 40px 28px;
            background: var(--bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
            height: 100%;
        }

        .step-item:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow);
            border-color: rgba(230, 57, 70, .2);
        }

        .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 800;
            font-size: 1.15rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 22px;
            box-shadow: 0 6px 18px rgba(230, 57, 70, .32);
        }

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

        .step-desc {
            font-size: .9rem;
            color: var(--text-light);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .step-arrow {
            position: absolute;
            top: 50%;
            right: -24px;
            transform: translateY(-50%);
            z-index: 3;
            color: var(--primary);
            font-size: 1.4rem;
            background: var(--bg-white);
            border-radius: 50%;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow);
        }

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

        .custom-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .custom-accordion .accordion-item:hover {
            border-color: rgba(230, 57, 70, .25);
            box-shadow: var(--shadow);
        }

        .custom-accordion .accordion-button {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            background: var(--bg-white);
            box-shadow: none;
            border-radius: var(--radius) !important;
            transition: var(--transition);
        }

        .custom-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: rgba(230, 57, 70, .03);
            box-shadow: none;
        }

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

        .custom-accordion .accordion-button::after {
            background-image: none;
            content: '+';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 1.2rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            width: auto;
            height: auto;
            transition: transform .3s ease;
        }

        .custom-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

        .custom-accordion .accordion-body {
            padding: 0 24px 22px;
            color: var(--text-light);
            font-size: .93rem;
            line-height: 1.8;
            background: var(--bg-white);
            border-top: 1px solid var(--border);
        }

        .custom-accordion .accordion-body p {
            margin: 0;
            padding-top: 16px;
        }

        .cta-section {
            position: relative;
            padding: 90px 0;
            background: linear-gradient(135deg, rgba(18, 24, 32, .95) 0%, rgba(29, 53, 87, .92) 60%, rgba(230, 57, 70, .82) 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 255, 255, .08) 0%, transparent 70%);
            filter: blur(40px);
        }

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

        .cta-section .section-title {
            color: #fff;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .82);
            max-width: 600px;
            margin: 0 auto 36px;
            font-size: 1.05rem;
            line-height: 1.8;
        }

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

        .btn-cta-primary {
            padding: 16px 40px;
            border-radius: 14px;
            font-weight: 800;
            font-size: 1.02rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            box-shadow: 0 10px 32px rgba(230, 57, 70, .45);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 40px rgba(230, 57, 70, .55);
            color: #fff;
        }

        .btn-cta-outline {
            padding: 16px 40px;
            border-radius: 14px;
            font-weight: 700;
            font-size: 1.02rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, .35);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, .14);
            border-color: rgba(255, 255, 255, .65);
            transform: translateY(-3px);
            color: #fff;
        }

        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, .6);
            padding: 68px 0 0;
        }

        .footer-brand {
            margin-bottom: 18px;
            font-size: 1.4rem;
            font-weight: 900;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .brand-mark {
            width: 40px;
            height: 40px;
            font-size: 1rem;
            border-radius: 12px;
        }

        .footer-desc {
            font-size: .9rem;
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 320px;
            color: rgba(255, 255, 255, .55);
        }

        .footer-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 22px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, .6);
            font-size: .88rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a i {
            font-size: .75rem;
            color: var(--primary-light);
        }

        .footer-links a:hover {
            color: var(--primary-light);
            transform: translateX(5px);
        }

        .footer-contact a {
            color: rgba(255, 255, 255, .6);
            font-size: .9rem;
            gap: 10px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 22px 0;
            margin-top: 56px;
            text-align: center;
            font-size: .82rem;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom p {
            margin: 0;
        }

        @media (max-width: 992px) {
            .section {
                padding: 72px 0;
            }

            .hero {
                min-height: 580px;
                padding: 130px 0 80px;
            }

            .stat-item::after {
                display: none;
            }

            .step-arrow {
                display: none;
            }

            .navbar-collapse {
                background: var(--bg-white);
                border-radius: var(--radius);
                padding: 16px;
                margin-top: 12px;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--border);
            }

            .navbar .nav-link::after {
                display: none;
            }

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

            .btn-nav {
                margin-top: 8px;
                width: 100%;
                text-align: center;
                justify-content: center;
            }

            .hero-metrics {
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

            .hero {
                min-height: 520px;
                padding: 110px 0 70px;
            }

            .hero-title {
                font-size: 1.9rem;
            }

            .hero-subtitle {
                font-size: .98rem;
            }

            .hero-metrics {
                gap: 16px;
                margin-top: 40px;
            }

            .hero-metric .metric-value {
                font-size: 1.4rem;
            }

            .category-card {
                min-height: 260px;
            }

            .news-card {
                padding: 18px;
            }

            .stat-number {
                font-size: 2.1rem;
            }

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

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

            .site-footer {
                padding: 48px 0 0;
            }

            .footer-bottom {
                margin-top: 36px;
            }
        }

        @media (max-width: 520px) {
            .hero {
                min-height: 480px;
                padding: 100px 0 60px;
            }

            .hero-buttons .btn-primary-custom,
            .hero-buttons .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
            }

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

            .category-card {
                min-height: 210px;
            }

            .brand-text {
                font-size: 1rem;
            }

            .brand-mark {
                width: 36px;
                height: 36px;
                font-size: .9rem;
                border-radius: 12px;
            }

            .live-badge {
                display: none;
            }

            .news-content h3 {
                font-size: .95rem;
            }

            .news-icon {
                width: 42px;
                height: 42px;
                min-width: 42px;
                font-size: 1rem;
            }

            .custom-accordion .accordion-button {
                padding: 16px 18px;
                font-size: .92rem;
            }

            .custom-accordion .accordion-body {
                padding: 0 18px 18px;
                font-size: .88rem;
            }

            .footer-title {
                font-size: .95rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #e63946;
            --primary-dark: #b02a35;
            --primary-light: #ff6b76;
            --accent: #ffb347;
            --dark: #0b0f19;
            --dark-2: #131a28;
            --dark-3: #1c2436;
            --light: #f8f9fc;
            --white: #ffffff;
            --text: #2c3e50;
            --text-light: #7a8ba3;
            --border: #e6eaf2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 12px rgba(11, 15, 25, .08);
            --shadow-md: 0 6px 30px rgba(11, 15, 25, .12);
            --shadow-lg: 0 12px 48px rgba(11, 15, 25, .18);
            --transition: all .25s ease;
        }

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

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

        a { text-decoration: none; color: inherit; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        ul { list-style: none; }
        button { border: none; background: none; cursor: pointer; }

        .container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }

        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.35; color: var(--dark); }

        .site-header {
            background: rgba(11, 15, 25, .95);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: 0 4px 30px rgba(0, 0, 0, .25);
        }

        .site-header .navbar { padding: 12px 0; min-height: 64px; }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--white) !important;
            font-weight: 800;
            font-size: 1.05rem;
            letter-spacing: .3px;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 900;
            letter-spacing: 0;
            box-shadow: 0 4px 14px rgba(230, 57, 70, .35);
        }

        .brand-text { white-space: nowrap; }

        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(230, 57, 70, .15);
            border: 1px solid rgba(230, 57, 70, .45);
            color: #ff8a92;
            font-size: .66rem;
            font-weight: 800;
            letter-spacing: .6px;
            padding: 2px 8px;
            border-radius: 30px;
            text-transform: uppercase;
        }

        .live-dot {
            width: 6px;
            height: 6px;
            background: var(--primary-light);
            border-radius: 50%;
            animation: livePulse 1.4s infinite;
        }

        @keyframes livePulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: .45; transform: scale(.75); }
        }

        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, .8);
            font-weight: 600;
            font-size: .92rem;
            padding: 8px 18px !important;
            border-radius: 30px;
            transition: var(--transition);
            position: relative;
        }

        .navbar-nav .nav-link:hover { color: var(--white); background: rgba(255, 255, 255, .08); }

        .navbar-nav .nav-link.active {
            color: var(--white);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 18px rgba(230, 57, 70, .35);
        }

        .navbar-toggler { color: var(--white); border: none; font-size: 1.3rem; padding: 6px 12px; }
        .navbar-toggler:focus { box-shadow: none; outline: none; }
        .hamburger-icon { color: var(--white); }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), #ff9500);
            color: var(--dark);
            font-weight: 700;
            font-size: .9rem;
            padding: 9px 22px;
            border-radius: 30px;
            box-shadow: 0 4px 18px rgba(255, 179, 71, .35);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-nav:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(255, 179, 71, .5); color: var(--dark); }

        @media (max-width: 991px) {
            .navbar-collapse {
                background: var(--dark-2);
                padding: 16px;
                border-radius: 14px;
                margin-top: 10px;
                border: 1px solid rgba(255, 255, 255, .08);
            }
            .navbar-nav .nav-link { padding: 10px 16px !important; }
            .btn-nav { margin-top: 12px; display: flex; justify-content: center; }
        }

        .category-hero {
            background: linear-gradient(135deg, #0b0f19 0%, #1a2133 60%, #2a1b20 100%);
            color: var(--white);
            padding: 90px 0 70px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: .16;
            z-index: 0;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(230, 57, 70, .25), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .16);
            color: #ffb3b8;
            font-size: .82rem;
            font-weight: 700;
            letter-spacing: .5px;
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 20px;
            backdrop-filter: blur(8px);
        }

        .category-hero h1 {
            color: var(--white);
            font-size: clamp(1.9rem, 4.5vw, 3.1rem);
            font-weight: 900;
            margin-bottom: 18px;
            letter-spacing: .5px;
        }

        .category-hero .hero-sub { color: rgba(255, 255, 255, .75); font-size: 1.1rem; max-width: 620px; margin-bottom: 30px; }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 20px;
            padding-top: 26px;
            border-top: 1px solid rgba(255, 255, 255, .12);
        }

        .hero-stat-item .num { font-size: 1.6rem; font-weight: 800; color: var(--accent); }
        .hero-stat-item .label { font-size: .82rem; color: rgba(255, 255, 255, .6); letter-spacing: .4px; }

        .section-pad { padding: 80px 0; }

        .section-head { margin-bottom: 44px; }
        .section-tag {
            display: inline-block;
            background: rgba(230, 57, 70, .08);
            color: var(--primary);
            font-size: .8rem;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 5px 14px;
            border-radius: 30px;
            margin-bottom: 12px;
            text-transform: uppercase;
            border: 1px solid rgba(230, 57, 70, .18);
        }

        .section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 8px; }
        .section-head p { color: var(--text-light); max-width: 600px; font-size: .98rem; }

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

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

        .news-card .card-img-wrap { position: relative; overflow: hidden; aspect-ratio: 16/10; }
        .news-card .card-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
        .news-card:hover .card-img-wrap img { transform: scale(1.06); }

        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: .74rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 30px;
            z-index: 2;
            box-shadow: 0 4px 12px rgba(230, 57, 70, .3);
        }

        .card-hot {
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--accent);
            color: var(--dark);
            font-size: .74rem;
            font-weight: 800;
            padding: 4px 10px;
            border-radius: 30px;
            z-index: 2;
        }

        .news-card .card-body { padding: 22px 20px 20px; display: flex; flex-direction: column; flex: 1; }
        .news-card .card-meta { display: flex; align-items: center; gap: 12px; font-size: .78rem; color: var(--text-light); margin-bottom: 10px; }
        .news-card .card-meta i { color: var(--primary); }
        .news-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; line-height: 1.45; }
        .news-card h3 a { color: var(--dark); }
        .news-card h3 a:hover { color: var(--primary); }
        .news-card .card-desc { font-size: .9rem; color: var(--text-light); margin-bottom: 16px; flex: 1; }
        .news-card .card-link { color: var(--primary); font-weight: 700; font-size: .88rem; display: inline-flex; align-items: center; gap: 6px; }

        .news-card .card-link i { transition: transform .25s ease; }
        .news-card .card-link:hover i { transform: translateX(4px); }

        .hot-list {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            height: 100%;
        }

        .hot-list .hot-title { font-size: 1.15rem; font-weight: 800; margin-bottom: 20px; display: flex;
            align-items: center; gap: 10px; }
        .hot-list .hot-title i { color: var(--primary); }

        .hot-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border);
        }

        .hot-item:last-child { border-bottom: none; padding-bottom: 0; }

        .hot-rank {
            min-width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--light);
            border-radius: 10px;
            font-weight: 800;
            font-size: .9rem;
            color: var(--text-light);
        }

        .hot-item:nth-child(2) .hot-rank { background: rgba(230, 57, 70, .1); color: var(--primary); }
        .hot-item:nth-child(3) .hot-rank { background: rgba(255, 179, 71, .15); color: #c47b00; }
        .hot-item:nth-child(4) .hot-rank { background: rgba(60, 153, 210, .1); color: #2d7195; }

        .hot-item .hot-info { flex: 1; }
        .hot-item .hot-info h4 { font-size: .92rem; font-weight: 600; line-height: 1.5; margin-bottom: 4px; }
        .hot-item .hot-info h4 a { color: var(--text); }
        .hot-item .hot-info h4 a:hover { color: var(--primary); }
        .hot-item .hot-info .hot-time { font-size: .74rem; color: var(--text-light); }

        .tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: var(--white);
            border: 1px solid var(--border);
            color: var(--text);
            font-size: .84rem;
            font-weight: 600;
            padding: 7px 16px;
            border-radius: 30px;
            transition: var(--transition);
        }

        .tag-item i { color: var(--primary); font-size: .74rem; }
        .tag-item:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 4px 14px rgba(230, 57, 70, .25); }
        .tag-item:hover i { color: #fff; }

        .quick-news {
            background: var(--dark);
            border-radius: var(--radius);
            padding: 36px;
            color: var(--white);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .quick-news::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -30%;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(230, 57, 70, .3), transparent 70%);
            border-radius: 50%;
        }

        .quick-news .qn-title { font-size: 1.1rem; font-weight: 800; margin-bottom: 18px; color: var(--white); display: flex; align-items: center; gap: 10px; }
        .quick-news .qn-title i { color: var(--accent); }

        .quick-news-list { position: relative; z-index: 2; }

        .quick-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            font-size: .9rem;
        }

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

        .quick-item .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--primary-light); flex-shrink: 0; }

        .quick-item .time { color: rgba(255, 255, 255, .5); font-size: .78rem; margin-left: auto; white-space: nowrap; }

        .quick-item a { color: rgba(255, 255, 255, .85); transition: var(--transition); }
        .quick-item a:hover { color: var(--accent); }

        .feature-box {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 30px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-box::before {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .35s ease;
        }

        .feature-box:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .feature-box:hover::before { transform: scaleX(1); }

        .feature-box .feature-icon {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(230, 57, 70, .1), rgba(255, 179, 71, .1));
            color: var(--primary);
            border-radius: 14px;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .feature-box h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 10px; }
        .feature-box p { font-size: .88rem; color: var(--text-light); margin-bottom: 0; }

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

        .info-image-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
        .info-image-wrap:hover img { transform: scale(1.03); }

        .info-image-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(11, 15, 25, .35));
            pointer-events: none;
        }

        .info-content h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 16px; }

        .info-list { margin-top: 20px; }

        .info-list li {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            align-items: flex-start;
            border-bottom: 1px dashed var(--border);
        }

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

        .info-list li i {
            width: 30px;
            height: 30px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(230, 57, 70, .08);
            color: var(--primary);
            border-radius: 8px;
            font-size: .82rem;
            margin-top: 2px;
        }

        .info-list li div strong { font-size: .95rem; display: block; margin-bottom: 3px; }
        .info-list li div p { font-size: .85rem; color: var(--text-light); margin: 0; }

        .update-banner {
            background: linear-gradient(135deg, var(--dark), #1e1520);
            border-radius: var(--radius);
            padding: 44px 40px;
            color: var(--white);
            position: relative;
            overflow: hidden;
        }

        .update-banner::after {
            content: "";
            position: absolute;
            bottom: -60%;
            left: 20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(230, 57, 70, .25), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .update-banner h3 { color: var(--white); font-weight: 800; font-size: 1.4rem; margin-bottom: 10px; position: relative; z-index: 2; }
        .update-banner p { color: rgba(255, 255, 255, .65); margin-bottom: 0; position: relative; z-index: 2; }

        .btn-score {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), #ff9500);
            color: var(--dark);
            font-weight: 700;
            padding: 12px 26px;
            border-radius: 30px;
            box-shadow: 0 4px 18px rgba(255, 179, 71, .3);
            transition: var(--transition);
            position: relative;
            z-index: 2;
            white-space: nowrap;
        }

        .btn-score:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255, 179, 71, .45); color: var(--dark); }

        .faq-item {
            background: var(--white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 22px 24px;
            margin-bottom: 14px;
            transition: var(--transition);
        }

        .faq-item:hover { box-shadow: var(--shadow-sm); border-color: rgba(230, 57, 70, .2); }

        .faq-item h3 { font-size: 1.02rem; font-weight: 700; margin-bottom: 8px; display: flex; align-items: flex-start; gap: 10px; }
        .faq-item h3::before { content: "Q"; color: var(--primary); font-size: .85rem; font-weight: 800; background: rgba(230, 57, 70, .1); width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; border-radius: 8px; flex-shrink: 0; margin-top: 2px; }
        .faq-item p { font-size: .92rem; color: var(--text-light); margin-bottom: 0; padding-left: 34px; }

        .cta-section {
            background: linear-gradient(135deg, #0b0f19, #1c2436);
            border-radius: calc(var(--radius) * 1.5);
            padding: 60px 40px;
            text-align: center;
            color: var(--white);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: .08;
        }

        .cta-section h2 { color: var(--white); font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 900; margin-bottom: 14px; position: relative; z-index: 2; }
        .cta-section p { color: rgba(255, 255, 255, .7); max-width: 560px; margin: 0 auto 30px; font-size: 1rem; position: relative; z-index: 2; }

        .cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 2; }

        .btn-primary-custom {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--white);
            font-weight: 700;
            padding: 13px 32px;
            border-radius: 30px;
            border: none;
            box-shadow: 0 6px 24px rgba(230, 57, 70, .35);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-custom:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(230, 57, 70, .45); color: var(--white); }

        .btn-outline-custom {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, .25);
            color: var(--white);
            font-weight: 700;
            padding: 11px 32px;
            border-radius: 30px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-custom:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .7);
            padding-top: 60px;
            margin-top: 80px;
        }

        .site-footer .row { padding-bottom: 20px; }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--white);
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .footer-brand .brand-mark { width: 40px; height: 40px; font-size: 1.25rem; }

        .footer-desc { font-size: .88rem; color: rgba(255, 255, 255, .55); max-width: 340px; line-height: 1.8; }

        .footer-title {
            color: var(--white);
            font-size: .95rem;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 26px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, .5);
            font-size: .85rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .footer-links a i { font-size: .68rem; color: var(--primary-light); }

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

        .footer-contact a { gap: 10px; }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 18px 0;
            text-align: center;
            font-size: .82rem;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom p { margin: 0; }

        .breadcrumb-wrap { padding: 22px 0 0; background: var(--light); }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: .84rem;
            color: var(--text-light);
        }

        .breadcrumb-custom a { color: var(--text-light); }
        .breadcrumb-custom a:hover { color: var(--primary); }
        .breadcrumb-custom .sep { color: #c9d2de; font-size: .75rem; }
        .breadcrumb-custom .current { color: var(--primary); font-weight: 600; }

        @media (max-width: 767px) {
            .section-pad { padding: 50px 0; }
            .category-hero { padding: 50px 0 40px; }
            .hero-stats { gap: 20px; }
            .hero-stat-item .num { font-size: 1.2rem; }
            .update-banner { padding: 30px 22px; }
            .cta-section { padding: 40px 20px; }
            .hot-list { margin-bottom: 24px; }
            .quick-news { margin-top: 16px; }
            .info-content { margin-top: 30px; }
            .footer-bottom { padding: 15px 0; }
        }

        @media (max-width: 520px) {
            .container { padding-left: 14px; padding-right: 14px; }
            .navbar-brand { font-size: .92rem; }
            .brand-mark { width: 30px; height: 30px; font-size: .95rem; }
            .live-badge { display: none; }
            .category-hero h1 { font-size: 1.6rem; }
            .category-hero .hero-sub { font-size: .92rem; }
            .section-head h2 { font-size: 1.4rem; }
            .news-card .card-body { padding: 18px 16px; }
            .hot-list { padding: 20px; }
            .faq-item { padding: 18px 16px; }
            .footer-title { margin-bottom: 14px; }
        }

        :focus-visible {
            outline: 3px solid rgba(230, 57, 70, .5);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category2 */
:root {
            --primary: #0d5c4a;
            --primary-dark: #073b30;
            --primary-light: #1a7a63;
            --accent: #ffb03a;
            --accent-light: #ffc96b;
            --accent-dark: #e69c1f;
            --bg: #f6f8f9;
            --bg-deep: #0e2a22;
            --bg-card: #ffffff;
            --text: #182620;
            --text-light: #5a6b64;
            --text-muted: #8aa099;
            --border: #e4ece8;
            --border-deep: #d0e0d9;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(13, 92, 74, 0.06);
            --shadow-md: 0 8px 30px rgba(13, 92, 74, 0.1);
            --shadow-lg: 0 20px 60px rgba(13, 92, 74, 0.16);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
        }

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

        .bg-deep {
            background-color: var(--bg-deep);
            color: #fff;
        }

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

        .text-light-muted {
            color: rgba(255, 255, 255, 0.65);
        }

        .btn {
            border-radius: 50px;
            padding: 12px 30px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            transition: var(--transition);
        }

        .btn:hover {
            transform: translateY(-2px);
        }

        .btn:focus {
            box-shadow: 0 0 0 4px rgba(255, 176, 58, 0.4);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            box-shadow: 0 4px 20px rgba(13, 92, 74, 0.3);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            box-shadow: 0 8px 30px rgba(13, 92, 74, 0.4);
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #182620;
            box-shadow: 0 4px 20px rgba(255, 176, 58, 0.35);
        }

        .btn-accent:hover {
            background: linear-gradient(135deg, var(--accent-dark), var(--accent));
            color: #fff;
            box-shadow: 0 8px 30px rgba(255, 176, 58, 0.45);
        }

        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            background: transparent;
        }

        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: transparent;
        }

        .section {
            padding: 90px 0;
        }

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.16em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(13, 92, 74, 0.08);
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 18px;
        }

        .section-label::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

        .section-title {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 17px;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 0;
        }

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

        /* header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(7, 59, 48, 0.92);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-header .navbar {
            padding: 14px 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            color: #fff !important;
            font-size: 18px;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), #ffecd2);
            color: var(--primary-dark);
            font-weight: 900;
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(255, 176, 58, 0.4);
        }

        .brand-text {
            letter-spacing: 0.02em;
        }

        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 11px;
            font-weight: 700;
            color: #ffb03a;
            background: rgba(255, 176, 58, 0.12);
            border: 1px solid rgba(255, 176, 58, 0.35);
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.1em;
        }

        .live-dot {
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.4);
            }
        }

        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.85) !important;
            font-weight: 600;
            font-size: 14px;
            padding: 8px 16px !important;
            border-radius: 30px;
            transition: var(--transition);
        }

        .navbar-nav .nav-link:hover {
            color: var(--accent) !important;
            background: rgba(255, 255, 255, 0.08);
        }

        .navbar-nav .nav-link.active {
            color: var(--primary-dark) !important;
            background: var(--accent);
            box-shadow: 0 4px 16px rgba(255, 176, 58, 0.4);
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #fff;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            border: none;
            padding: 10px 22px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 14px;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(255, 176, 58, 0.35);
        }

        .btn-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 176, 58, 0.5);
            color: var(--primary-dark);
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: transparent;
            padding: 8px 12px;
            border-radius: 8px;
            color: #fff;
        }

        .hamburger-icon {
            font-size: 20px;
            color: #fff;
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: var(--primary-dark);
                padding: 20px;
                border-radius: var(--radius);
                margin-top: 16px;
                border: 1px solid rgba(255, 255, 255, 0.1);
            }

            .navbar-nav {
                gap: 4px;
                margin-bottom: 16px;
            }

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

            .btn-nav {
                width: 100%;
                justify-content: center;
            }
        }

        /* hero */
        .category-hero {
            position: relative;
            padding: 100px 0 120px;
            background: linear-gradient(135deg, var(--bg-deep) 0%, #0e3d31 60%, #155e4a 100%);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.9), transparent);
            -webkit-mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.9), transparent);
        }

        .category-hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to right, var(--bg-deep) 20%, transparent 80%);
        }

        .category-hero .container {
            position: relative;
            z-index: 10;
        }

        .hero-breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            margin-bottom: 20px;
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }

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

        .hero-breadcrumb .separator {
            font-size: 11px;
            opacity: 0.5;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 176, 58, 0.15);
            border: 1px solid rgba(255, 176, 58, 0.35);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 20px;
        }

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

        .category-hero h1 {
            font-size: clamp(36px, 6vw, 60px);
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 24px;
            letter-spacing: -0.03em;
        }

        .category-hero p.lead {
            color: rgba(255, 255, 255, 0.75);
            font-size: 18px;
            max-width: 580px;
            margin-bottom: 36px;
            line-height: 1.8;
        }

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

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 50px;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-stat {
            text-align: left;
        }

        .hero-stat .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 60px 0 80px;
            }

            .hero-stats {
                gap: 20px;
                flex-wrap: wrap;
            }

            .hero-stat .num {
                font-size: 24px;
            }
        }

        /* cards - data category */
        .data-category-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 26px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .data-category-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);
        }

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

        .data-category-card:hover::before {
            opacity: 1;
        }

        .data-category-card .icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(13, 92, 74, 0.1), rgba(13, 92, 74, 0.04));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .data-category-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .data-category-card p {
            color: var(--text-light);
            font-size: 14px;
            margin-bottom: 16px;
            line-height: 1.7;
        }

        .data-category-card .link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .data-category-card .link i {
            font-size: 12px;
            transition: var(--transition);
        }

        .data-category-card .link:hover i {
            transform: translateX(4px);
        }

        .data-category-card .tag {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(13, 92, 74, 0.08);
            padding: 3px 10px;
            border-radius: 20px;
        }

        /* data report cards */
        .report-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }

        .report-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .report-card .report-cover {
            position: relative;
            height: 200px;
            overflow: hidden;
            background-size: cover;
            background-position: center;
        }

        .report-card .report-cover .tag-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            z-index: 2;
        }

        .report-card .report-cover .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.3), transparent);
            opacity: 0;
            transition: var(--transition);
        }

        .report-card:hover .report-cover .overlay {
            opacity: 1;
        }

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

        .report-card .report-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .report-card .report-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .report-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }

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

        /* process section */
        .process-section {
            background-color: var(--bg-deep);
            position: relative;
            overflow: hidden;
        }

        .process-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
        }

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

        .process-step {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 36px 28px;
            height: 100%;
            transition: var(--transition);
            position: relative;
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 176, 58, 0.3);
            transform: translateY(-4px);
        }

        .process-step .step-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.12em;
            text-transform: uppercase;
            margin-bottom: 14px;
            display: block;
        }

        .process-step .step-icon {
            font-size: 30px;
            color: var(--accent);
            margin-bottom: 18px;
        }

        .process-step h3 {
            color: #fff;
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .process-step p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* rankings */
        .ranking-table {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 24px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .ranking-item:hover {
            background: rgba(13, 92, 74, 0.03);
        }

        .ranking-num {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-muted);
            width: 40px;
            text-align: center;
        }

        .ranking-item:nth-child(1) .ranking-num {
            color: var(--accent);
        }

        .ranking-item:nth-child(2) .ranking-num {
            color: var(--primary-light);
        }

        .ranking-item:nth-child(3) .ranking-num {
            color: #c47d1b;
        }

        .ranking-info {
            flex: 1;
        }

        .ranking-info h4 {
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 4px;
        }

        .ranking-info p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        .ranking-value {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
        }

        .ranking-trend {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            background: rgba(13, 92, 74, 0.06);
            padding: 4px 10px;
            border-radius: 20px;
        }

        .ranking-trend.up {
            color: #16a34a;
            background: rgba(22, 163, 74, 0.1);
        }

        .ranking-trend.down {
            color: #dc2626;
            background: rgba(220, 38, 38, 0.1);
        }

        @media (max-width: 640px) {
            .ranking-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 16px;
            }
            .ranking-value {
                font-size: 16px;
            }
        }

        /* faq */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-deep);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            padding: 22px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text);
        }

        .faq-question i {
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition);
            background: rgba(13, 92, 74, 0.08);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .faq-item.active .faq-question {
            color: var(--primary);
        }

        .faq-item.active .faq-question i {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            padding: 0 28px 22px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 32px;
            padding: 60px 60px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 176, 58, 0.1);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 30%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 176, 58, 0.06);
        }

        .cta-section h2 {
            font-size: clamp(26px, 4vw, 38px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            max-width: 520px;
            margin-bottom: 28px;
        }

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

        /* footer */
        .site-footer {
            background-color: var(--bg-deep);
            color: rgba(255, 255, 255, 0.6);
            padding-top: 70px;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

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

        .footer-links a i {
            font-size: 10px;
            color: var(--accent);
        }

        .footer-contact a {
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            margin-top: 50px;
        }

        .footer-bottom p {
            font-size: 13px;
            margin: 0;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .cta-section {
                padding: 40px 24px;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 34px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #0b1a33;
            --color-primary-light: #142a4d;
            --color-accent: #ff6b35;
            --color-accent-hover: #e05523;
            --color-blue: #0ea5e9;
            --color-bg: #f4f6fb;
            --color-card: #ffffff;
            --color-text: #101828;
            --color-text-weak: #667085;
            --color-border: #e6e9f0;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(16, 24, 40, 0.06);
            --shadow-md: 0 10px 32px rgba(16, 24, 40, 0.10);
            --shadow-lg: 0 24px 60px rgba(16, 24, 40, 0.14);
            --space-section: 96px;
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }
        a { text-decoration: none; color: inherit; transition: color .2s; }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--color-text); }
        .container { max-width: 1240px; }

        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 1080;
            background: rgba(11, 26, 51, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: box-shadow .3s;
        }
        .site-header.scrolled { box-shadow: 0 8px 30px rgba(11, 26, 51, 0.3); }
        .site-header .navbar { padding: 14px 0; }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0;
            margin: 0;
        }
        .brand-mark {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--color-accent), #ff8a4c);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
        }
        .brand-text {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 20px;
            padding: 3px 10px;
            font-size: 11px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .5px;
        }
        .live-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #ff4d4f;
            animation: pulseDot 1.6s infinite;
        }
        @keyframes pulseDot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(255, 77, 79, 0.5); }
            50% { box-shadow: 0 0 0 6px rgba(255, 77, 79, 0); }
        }
        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 18px !important;
            border-radius: 24px;
            transition: all .2s;
        }
        .navbar-nav .nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
        .navbar-nav .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, var(--color-accent), #ff8a4c);
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
        }
        .navbar-toggler {
            border: none;
            background: none;
            padding: 4px 8px;
        }
        .hamburger-icon {
            color: #fff;
            font-size: 24px;
            line-height: 1;
        }
        .navbar-toggler:focus { box-shadow: none; }
        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--color-accent), #ff8a4c);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: 30px;
            box-shadow: 0 6px 18px rgba(255, 107, 53, 0.35);
            transition: all .2s;
        }
        .btn-nav:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(255, 107, 53, 0.45); color: #fff; }

        .article-hero {
            position: relative;
            padding: 180px 0 96px;
            background: linear-gradient(135deg, rgba(11, 26, 51, 0.97), rgba(20, 42, 77, 0.92) 50%, rgba(11, 26, 51, 0.88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            overflow: hidden;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            right: -120px;
            bottom: -160px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.22), transparent 65%);
            pointer-events: none;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 28px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            position: relative;
            z-index: 2;
        }
        .breadcrumb-nav a { color: rgba(255, 255, 255, 0.75); transition: color .2s; }
        .breadcrumb-nav a:hover { color: var(--color-accent); }
        .breadcrumb-sep { font-size: 11px; opacity: .6; }
        .breadcrumb-current { color: rgba(255, 255, 255, 0.9); font-weight: 500; }
        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, var(--color-accent), #ff8a4c);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 18px;
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.3);
        }
        .article-hero-content h1 {
            color: #fff;
            font-size: 38px;
            font-weight: 800;
            line-height: 1.35;
            max-width: 860px;
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
        }
        .article-meta span { display: inline-flex; align-items: center; gap: 8px; }
        .article-meta i { color: var(--color-accent); }

        .article-main { padding: 64px 0 24px; }
        .article-body {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            padding: 52px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            position: relative;
        }
        .article-body-header { margin-bottom: 36px; }
        .article-lead {
            font-size: 18px;
            line-height: 1.8;
            color: #475467;
            border-left: 4px solid var(--color-accent);
            padding: 4px 0 4px 20px;
            background: linear-gradient(90deg, #fff8f5, transparent);
            border-radius: 0 8px 8px 0;
        }
        .article-body-content h2 {
            font-size: 28px;
            margin: 42px 0 16px;
            color: var(--color-primary);
            position: relative;
            padding-bottom: 10px;
        }
        .article-body-content h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 42px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--color-accent), #ff8a4c);
        }
        .article-body-content h3 { font-size: 22px; margin: 32px 0 14px; color: var(--color-primary); }
        .article-body-content p {
            margin-bottom: 24px;
            color: #344054;
            font-size: 17px;
            line-height: 1.9;
        }
        .article-body-content ul,
        .article-body-content ol {
            margin: 0 0 24px 22px;
            color: #344054;
            font-size: 17px;
            line-height: 1.9;
        }
        .article-body-content li { margin-bottom: 8px; }
        .article-body-content blockquote {
            border-left: 4px solid var(--color-accent);
            background: #fff8f5;
            padding: 18px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 28px 0;
            color: #475467;
            font-style: italic;
            font-size: 16px;
        }
        .article-body-content img {
            border-radius: var(--radius-md);
            margin: 28px 0;
            box-shadow: var(--shadow-sm);
            width: 100%;
            object-fit: cover;
        }
        .article-body-content a { color: var(--color-accent); text-decoration: underline; }
        .article-body-content a:hover { color: var(--color-accent-hover); }
        .article-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 28px;
            margin-top: 40px;
            border-top: 1px solid var(--color-border);
        }
        .article-tags > span { font-weight: 600; color: var(--color-text); margin-right: 4px; }
        .article-tags a {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 13px;
            color: var(--color-text-weak);
            transition: all .2s;
        }
        .article-tags a:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: #fff8f5;
        }

        .content-not-found {
            text-align: center;
            padding: 80px 40px;
            background: var(--color-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .not-found-icon {
            width: 88px;
            height: 88px;
            border-radius: 50%;
            background: linear-gradient(135deg, #fff3ee, #ffe5dc);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 38px;
            margin-bottom: 24px;
        }
        .content-not-found h2 { font-size: 32px; margin-bottom: 12px; }
        .content-not-found p { color: var(--color-text-weak); margin-bottom: 28px; font-size: 16px; }

        .article-note { padding: 24px 0 80px; }
        .note-box {
            background: #f9fafc;
            border: 1px dashed var(--color-border);
            border-radius: var(--radius-md);
            padding: 20px 28px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            max-width: 920px;
            margin: 0 auto;
        }
        .note-box i { color: var(--color-blue); font-size: 20px; margin-top: 4px; }
        .note-box p { color: var(--color-text-weak); font-size: 14px; line-height: 1.6; margin: 0; }

        .related-section { padding: 0 0 var(--space-section); }
        .section-head { text-align: center; margin-bottom: 48px; }
        .section-head h2 { font-size: 34px; margin-bottom: 10px; color: var(--color-primary); }
        .section-head p { color: var(--color-text-weak); font-size: 16px; }
        .recommend-card {
            background: var(--color-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all .3s;
            height: 100%;
        }
        .recommend-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
        .recommend-img-link { position: relative; display: block; overflow: hidden; }
        .recommend-img-link img {
            width: 100%;
            height: 210px;
            object-fit: cover;
            transition: transform .5s;
        }
        .recommend-card:hover .recommend-img-link img { transform: scale(1.05); }
        .recommend-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: linear-gradient(135deg, var(--color-accent), #ff8a4c);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 16px;
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
        }
        .recommend-card-body { padding: 24px; }
        .recommend-card-body h3 { font-size: 18px; line-height: 1.5; margin-bottom: 12px; }
        .recommend-card-body h3 a { color: var(--color-text); transition: color .2s; }
        .recommend-card-body h3 a:hover { color: var(--color-accent); }
        .recommend-card-body p {
            color: var(--color-text-weak);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .recommend-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            color: var(--color-text-weak);
            font-size: 13px;
        }
        .recommend-meta span { display: inline-flex; align-items: center; gap: 6px; }

        .cta-section {
            padding: var(--space-section) 0;
            background: linear-gradient(135deg, rgba(11, 26, 51, 0.96), rgba(20, 42, 77, 0.9)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
        }
        .cta-box {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            backdrop-filter: blur(8px);
        }
        .cta-content h2 { color: #fff; font-size: 30px; margin-bottom: 8px; }
        .cta-content p { color: rgba(255, 255, 255, 0.75); font-size: 16px; margin: 0; }
        .cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
        .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--color-primary);
            font-weight: 600;
            padding: 12px 26px;
            border-radius: 30px;
            box-shadow: 0 6px 18px rgba(255, 255, 255, 0.2);
            transition: all .2s;
        }
        .btn-white:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(255, 255, 255, 0.28); color: var(--color-primary); }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: 30px;
            transition: all .2s;
        }
        .btn-ghost:hover { background: rgba(255, 255, 255, 0.1); color: #fff; border-color: #fff; }

        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 80px 0 0;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .brand-mark { width: 38px; height: 38px; font-size: 18px; border-radius: 10px; }
        .footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.6); max-width: 360px; margin-bottom: 0; }
        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-accent);
        }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .2s;
        }
        .footer-links a:hover { color: #fff; padding-left: 4px; }
        .footer-links a i { font-size: 10px; color: var(--color-accent); }
        .footer-contact a i { font-size: 14px; width: 18px; }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 60px;
            padding: 24px 0;
            text-align: center;
        }
        .footer-bottom p { color: rgba(255, 255, 255, 0.5); font-size: 13px; margin: 0; }

        @media (max-width: 1199.98px) {
            .article-hero-content h1 { font-size: 34px; }
            .section-head h2 { font-size: 30px; }
        }
        @media (max-width: 991.98px) {
            .site-header .navbar { padding: 12px 0; }
            .navbar-collapse {
                background: rgba(11, 26, 51, 0.98);
                border-radius: 0 0 16px 16px;
                padding: 20px;
                margin-top: 12px;
                border: 1px solid rgba(255, 255, 255, 0.06);
                max-height: calc(100vh - 100px);
                overflow-y: auto;
            }
            .navbar-nav .nav-link { text-align: center; padding: 12px !important; }
            .btn-nav { margin-top: 16px; display: flex; justify-content: center; }
            .article-hero { padding: 160px 0 80px; }
            .article-hero-content h1 { font-size: 30px; }
            .article-body { padding: 36px; }
            .article-body-content h2 { font-size: 24px; }
            .article-body-content p { font-size: 16px; }
            .cta-box { padding: 36px; }
            .section-head h2 { font-size: 28px; }
        }
        @media (max-width: 767.98px) {
            .article-hero { padding: 140px 0 60px; }
            .article-hero-content h1 { font-size: 25px; }
            .article-meta { gap: 14px; font-size: 13px; }
            .article-body { padding: 24px 20px; }
            .article-body-content h2 { font-size: 22px; }
            .article-body-content h3 { font-size: 19px; }
            .article-tags { gap: 8px; }
            .recommend-img-link img { height: 180px; }
            .cta-section { padding: 64px 0; }
            .cta-box { padding: 28px 20px; flex-direction: column; text-align: center; }
            .cta-actions { justify-content: center; }
            .site-footer { padding-top: 56px; }
            .footer-bottom { margin-top: 40px; }
        }
        @media (max-width: 575.98px) {
            .brand-text { font-size: 16px; }
            .live-badge { display: none; }
            .article-hero-content h1 { font-size: 22px; }
            .article-meta { flex-direction: column; gap: 8px; }
            .section-head h2 { font-size: 24px; }
            .section-head p { font-size: 14px; }
            .section-head { margin-bottom: 32px; }
            .note-box { padding: 16px; }
            .content-not-found { padding: 48px 20px; }
            .content-not-found h2 { font-size: 26px; }
            .cta-content h2 { font-size: 22px; }
        }
        a:focus-visible, button:focus-visible {
            outline: 3px solid rgba(255, 107, 53, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category3 */
:root {
  --primary: #2b6de8;
  --primary-dark: #1b53c4;
  --primary-light: #eaf1ff;
  --secondary: #8b5cf6;
  --accent: #f7b32b;
  --accent-soft: #fff5dc;
  --dark-900: #0d1424;
  --dark-800: #131e33;
  --dark-700: #1c2942;
  --light-bg: #f4f7fc;
  --white: #ffffff;
  --text-main: #1b2333;
  --text-muted: #5b6a83;
  --border-color: #e4eaf3;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(18, 32, 68, 0.06);
  --shadow-md: 0 14px 36px rgba(18, 32, 68, 0.09);
  --shadow-lg: 0 24px 56px rgba(18, 32, 68, 0.14);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --transition: all 0.28s ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text-main);
  background: var(--light-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; }
ul, ol { padding-left: 0; list-style: none; margin-bottom: 0; }
.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }

/* ========== Header / Nav ========== */
.site-header {
  background: linear-gradient(120deg, #0c1524 0%, #13203a 60%, #1a2b4e 100%);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  position: sticky;
  top: 0;
  z-index: 1050;
  box-shadow: 0 8px 30px rgba(3, 8, 18, 0.35);
}
.navbar { padding: 14px 0; }
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
}
.navbar-brand:hover { color: #fff; }
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 1.25rem;
  font-weight: 900;
  box-shadow: 0 6px 16px rgba(43, 109, 232, 0.4);
  flex-shrink: 0;
}
.brand-text { line-height: 1.2; }
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  background: rgba(255, 77, 79, 0.16);
  border: 1px solid rgba(255, 77, 79, 0.35);
  padding: 3px 9px;
  border-radius: 20px;
  letter-spacing: 0.08em;
}
.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ff4d4f;
  animation: pulse-dot 1.4s infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,77,79,0.5); }
  50% { box-shadow: 0 0 0 6px rgba(255,77,79,0); }
}
.navbar-toggler { border: 0; color: #fff; }
.navbar-toggler:focus { box-shadow: none; }
.hamburger-icon { font-size: 1.4rem; }
.navbar-nav { gap: 4px; }
.nav-link {
  color: rgba(255,255,255,0.72);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 8px 16px !important;
  border-radius: 24px;
  position: relative;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-link.active {
  color: #fff;
  background: rgba(255,255,255,0.12);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}
.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent), #ff9f1c);
  color: #0d1424;
  font-weight: 700;
  padding: 9px 22px;
  border-radius: 30px;
  font-size: 0.9rem;
  box-shadow: 0 8px 20px rgba(247, 179, 43, 0.3);
  transition: var(--transition);
  white-space: nowrap;
}
.btn-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(247, 179, 43, 0.4);
  color: #0d1424;
}

/* ========== Page Hero ========== */
.page-hero {
  position: relative;
  padding: 110px 0 90px;
  background:
    linear-gradient(105deg, rgba(9, 14, 27, 0.93) 18%, rgba(15, 25, 47, 0.72) 55%, rgba(28, 39, 70, 0.55) 100%),
    url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  color: #fff;
}
.page-hero .breadcrumb {
  background: rgba(255,255,255,0.1);
  border-radius: 30px;
  padding: 6px 16px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}
.page-hero .breadcrumb i { font-size: 0.75rem; color: var(--accent); }
.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.page-hero h1 span {
  color: var(--accent);
  position: relative;
}
.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.82);
  max-width: 640px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-weight: 700;
  padding: 12px 30px;
  border-radius: 30px;
  border: 0;
  font-size: 1rem;
  box-shadow: 0 10px 30px rgba(43, 109, 232, 0.35);
  transition: var(--transition);
}
.btn-hero-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(43, 109, 232, 0.45); color: #fff; }
.btn-hero-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-weight: 700;
  padding: 12px 30px;
  border-radius: 30px;
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.btn-hero-ghost:hover { background: rgba(255,255,255,0.16); color: #fff; border-color: rgba(255,255,255,0.4); }
.hero-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  padding: 22px;
  display: flex;
  gap: 18px;
  align-items: center;
  margin-top: 20px;
  max-width: 480px;
  transition: var(--transition);
}
.hero-card:hover { background: rgba(255,255,255,0.13); }
.hero-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), #ff9f1c);
  color: #0d1424;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.hero-card-title { font-weight: 800; font-size: 1rem; }
.hero-card-text { color: rgba(255,255,255,0.7); font-size: 0.88rem; }

/* ========== Section 通用 ========== */
.section { padding: 90px 0; }
.section-alt { background: var(--white); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 14px;
  line-height: 1.25;
}
.section-head p { color: var(--text-muted); font-size: 1rem; line-height: 1.8; }

/* ========== Feature Cards ========== */
.feature-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(43, 109, 232, 0.25);
}
.feature-img-wrap {
  position: relative;
  height: 190px;
  overflow: hidden;
}
.feature-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.feature-card:hover .feature-img-wrap img { transform: scale(1.06); }
.feature-img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13,20,36,0) 52%, rgba(13,20,36,0.42) 100%);
}
.feature-icon {
  position: absolute;
  left: 20px;
  bottom: -18px;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 8px 20px rgba(43, 109, 232, 0.35);
  z-index: 2;
}
.feature-body { padding: 30px 22px 24px; }
.feature-body h3 { font-size: 1.12rem; font-weight: 800; margin-bottom: 10px; }
.feature-body p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.75; margin-bottom: 12px; }
.feature-meta {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ========== Hot Topics ========== */
.topic-rank {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}
.rank-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 10px;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
  position: relative;
}
.rank-card:last-child { border-bottom: 0; }
.rank-card:hover { background: var(--light-bg); border-radius: var(--radius-md); padding-left: 18px; }
.rank-num {
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--text-muted);
  font-style: italic;
  width: 44px;
  text-align: center;
  flex-shrink: 0;
}
.rank-card:first-child .rank-num,
.rank-card:nth-child(2) .rank-num,
.rank-card:nth-child(3) .rank-num { color: var(--accent); }
.rank-content { flex: 1; min-width: 0; }
.rank-content h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.rank-bar {
  height: 6px;
  border-radius: 6px;
  background: var(--light-bg);
  overflow: hidden;
  max-width: 360px;
}
.rank-bar span {
  display: block;
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}
.rank-heat {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.rank-heat i { color: var(--accent); }

/* ========== Activities ========== */
.activity-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.activity-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.activity-media {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.activity-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.activity-card:hover .activity-media img { transform: scale(1.05); }
.activity-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(13,20,36,0.72);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 20px;
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.15);
}
.activity-body { padding: 22px; }
.activity-body h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 10px; }
.activity-body p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 14px; line-height: 1.7; }
.activity-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.activity-info .fas { color: var(--primary); margin-right: 6px; font-size: 0.85rem; }
.activity-info span { font-size: 0.84rem; color: var(--text-muted); }
.btn-activity {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 8px 18px;
  border-radius: 24px;
  border: 1px solid transparent;
  transition: var(--transition);
}
.btn-activity:hover { background: var(--primary); color: #fff; }

/* ========== Stats ========== */
.stats-section {
  background:
    linear-gradient(110deg, rgba(11, 18, 35, 0.95) 0%, rgba(18, 30, 55, 0.88) 100%),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding: 80px 0;
  color: #fff;
  position: relative;
}
.stats-section .section-head h2 { color: #fff; }
.stats-section .section-head p { color: rgba(255,255,255,0.7); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 20px; }
.stat-box {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 34px 20px;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.stat-box:hover { background: rgba(255,255,255,0.12); transform: translateY(-4px); }
.stat-num {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent), #ffd36e);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}
.stat-label { color: rgba(255,255,255,0.72); font-size: 0.9rem; margin-top: 8px; letter-spacing: 0.05em; }

/* ========== FAQ ========== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-wrap .accordion-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md) !important;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  background: var(--white);
  transition: var(--transition);
}
.faq-wrap .accordion-item:hover { box-shadow: var(--shadow-md); border-color: rgba(43,109,232,0.2); }
.faq-wrap .accordion-button {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  padding: 18px 24px;
  background: var(--white);
  box-shadow: none;
}
.faq-wrap .accordion-button:not(.collapsed) {
  background: var(--primary-light);
  color: var(--primary);
}
.faq-wrap .accordion-button:focus { box-shadow: none; border-color: transparent; }
.faq-wrap .accordion-button::after {
  background-size: 14px;
  filter: none;
  opacity: 0.6;
}
.faq-wrap .accordion-button:not(.collapsed)::after { opacity: 1; }
.faq-wrap .accordion-body {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

/* ========== CTA ========== */
.cta-section {
  padding: 60px 0 80px;
}
.cta-box {
  background: linear-gradient(120deg, #182542, #243757 60%, #2e4870);
  border-radius: 28px;
  padding: 60px 40px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-box::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(247,179,43,0.2) 0%, rgba(247,179,43,0) 70%);
}
.cta-box::after {
  content: "";
  position: absolute;
  bottom: -60%;
  left: 10%;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139,92,246,0.25) 0%, transparent 70%);
}
.cta-container { position: relative; z-index: 2; text-align: center; max-width: 720px; margin: 0 auto; }
.cta-container h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; margin-bottom: 16px; }
.cta-container p { color: rgba(255,255,255,0.75); font-size: 1rem; margin-bottom: 28px; line-height: 1.8; }
.cta-btns { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; }
.btn-cta-solid {
  background: linear-gradient(135deg, var(--accent), #ff9f1c);
  color: #0d1424;
  font-weight: 800;
  padding: 13px 34px;
  border-radius: 30px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 8px 24px rgba(247, 179, 43, 0.3);
  transition: var(--transition);
}
.btn-cta-solid:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(247, 179, 43, 0.4); color: #0d1424; }
.btn-cta-outline {
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-weight: 700;
  padding: 13px 34px;
  border-radius: 30px;
  border: 1px solid rgba(255,255,255,0.3);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
}
.btn-cta-outline:hover { background: rgba(255,255,255,0.16); color: #fff; border-color: rgba(255,255,255,0.5); }

/* ========== Footer ========== */
.site-footer {
  background: #0b1120;
  color: rgba(255,255,255,0.7);
  padding-top: 64px;
  border-top: 1px solid rgba(255,255,255,0.04);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand .brand-mark { width: 40px; height: 40px; font-size: 1.2rem; }
.footer-desc { font-size: 0.92rem; color: rgba(255,255,255,0.6); max-width: 340px; line-height: 1.8; }
.footer-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.58);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}
.footer-links a i { font-size: 0.65rem; color: rgba(255,255,255,0.3); transition: var(--transition); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-links a:hover i { color: var(--accent); }
.footer-contact a { color: rgba(255,255,255,0.58); }
.footer-contact i { margin-right: 4px; color: var(--primary) !important; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: 50px;
  padding: 24px 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}
.footer-bottom p { margin: 0; }

/* ========== 响应式 ========== */
@media (max-width: 991px) {
  .navbar-collapse { padding: 16px 0 4px; }
  .nav-link { text-align: center; }
  .btn-nav { margin: 8px auto 0; display: flex; justify-content: center; max-width: 220px; }
  .page-hero { padding: 80px 0 64px; }
  .section { padding: 70px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .page-hero { padding: 64px 0 54px; text-align: center; }
  .page-hero .breadcrumb { margin-left: auto; margin-right: auto; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-card { margin-left: auto; margin-right: auto; text-align: left; }
  .section-head { margin-bottom: 40px; }
  .rank-card { flex-wrap: wrap; gap: 12px; }
  .rank-heat { margin-left: 64px; }
  .cta-box { padding: 44px 24px; }
}

@media (max-width: 520px) {
  .navbar-brand { font-size: 1rem; }
  .brand-mark { width: 36px; height: 36px; font-size: 1.05rem; border-radius: 10px; }
  .live-badge { display: none; }
  .page-hero h1 { font-size: 1.65rem; }
  .hero-subtitle { font-size: 0.95rem; }
  .btn-hero-primary, .btn-hero-ghost { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .stat-box { padding: 24px 12px; }
  .stat-num { font-size: 1.7rem; }
  .topic-rank { padding: 20px; }
  .rank-card { padding: 14px 8px; }
  .rank-content h4 { font-size: 0.93rem; }
  .footer-bottom { font-size: 0.78rem; }
}