/* roulang page: index */
:root {
            --primary: #1b2a5e;
            --primary-light: #24407e;
            --accent: #c9a85c;
            --accent-light: #e8d5a4;
            --gold: #b8913f;
            --bg-light: #f7f8fc;
            --bg-white: #ffffff;
            --bg-dark: #0f172a;
            --text-dark: #14213d;
            --text-body: #3a4256;
            --text-muted: #7a8296;
            --border: #e8eaf0;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(20, 33, 61, 0.06);
            --shadow-md: 0 8px 32px rgba(20, 33, 61, 0.08);
            --shadow-lg: 0 20px 50px rgba(20, 33, 61, 0.12);
            --shadow-gold: 0 8px 30px rgba(201, 168, 92, 0.25);
            --transition: all 0.3s ease;
            --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }
        .section {
            padding: 96px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
        }
        .section-header .eyebrow {
            display: inline-block;
            background: rgba(201, 168, 92, 0.12);
            color: var(--gold);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 18px;
            text-transform: uppercase;
        }
        .section-header h2 {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 14px;
            line-height: 1.3;
            letter-spacing: -1px;
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-muted);
            margin: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 600;
            font-size: 15px;
            border-radius: 50px;
            padding: 14px 32px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(27, 42, 94, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(27, 42, 94, 0.3);
        }
        .btn-primary:focus {
            outline: 3px solid rgba(27, 42, 94, 0.35);
            outline-offset: 2px;
        }
        .btn-primary:active {
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(27, 42, 94, 0.25);
        }
        .btn-gold {
            background: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-gold);
        }
        .btn-gold:hover {
            background: var(--gold);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 12px 38px rgba(201, 168, 92, 0.32);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .btn-light:hover {
            background: var(--accent-light);
            color: var(--primary);
            transform: translateY(-3px);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
        }
        /* ======== Header ======== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 20px rgba(20, 33, 61, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 78px;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            box-shadow: var(--shadow-sm);
        }
        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            padding: 10px 18px;
            border-radius: 30px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(27, 42, 94, 0.05);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(27, 42, 94, 0.08);
            font-weight: 700;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 30px;
            padding: 8px 16px;
            gap: 9px;
            transition: var(--transition);
            width: 190px;
        }
        .nav-search i {
            font-size: 13px;
            color: var(--text-muted);
        }
        .nav-search input {
            border: none;
            background: transparent;
            font-size: 14px;
            color: var(--text-dark);
            outline: none;
            width: 100%;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(201, 168, 92, 0.14);
            background: #fff;
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: 12px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-dark);
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--accent);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 16px 24px 24px;
            box-shadow: var(--shadow-md);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 12px;
            margin-bottom: 4px;
            transition: var(--transition);
        }
        .mobile-menu a:hover {
            background: var(--bg-light);
            color: var(--primary);
        }
        .mobile-menu a.active {
            background: rgba(27, 42, 94, 0.08);
            color: var(--primary);
            font-weight: 700;
        }
        /* ======== Hero ======== */
        .hero {
            position: relative;
            background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 20%, rgba(27, 42, 94, 0.72) 60%, rgba(201, 168, 92, 0.28) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 140px 0 110px;
            color: #fff;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            border: 2px solid rgba(255, 255, 255, 0.08);
            top: -120px;
            right: -80px;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.06);
            bottom: -60px;
            left: 8%;
            pointer-events: none;
        }
        .hero-content {
            max-width: 880px;
            position: relative;
            z-index: 2;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 7px 18px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 26px;
            color: var(--accent-light);
        }
        .hero h1 {
            font-size: 58px;
            font-weight: 800;
            line-height: 1.15;
            margin: 0 0 20px;
            letter-spacing: -2px;
            background: linear-gradient(135deg, #ffffff 60%, var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 19px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.82);
            max-width: 600px;
            margin: 0 0 36px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 64px;
        }
        .hero-stats {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 34px;
        }
        .stat-item .stat-num {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .stat-item .stat-num span {
            color: var(--accent-light);
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }
        /* ======== Features ======== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 44px 36px 40px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--gold));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(201, 168, 92, 0.3);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 18px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-light);
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }
        .feature-icon.gold {
            background: linear-gradient(135deg, var(--accent), var(--gold));
            color: #fff;
        }
        .feature-icon.sky {
            background: linear-gradient(135deg, #3b82f6, #2563eb);
            color: #fff;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.75;
        }
        /* ======== Categories ======== */
        .category-section {
            background: var(--bg-white);
        }
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .category-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-10px) scale(1.01);
            box-shadow: var(--shadow-lg);
            border-color: rgba(201, 168, 92, 0.35);
        }
        .category-img {
            position: relative;
            height: 220px;
            overflow: hidden;
        }
        .category-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-card:hover .category-img img {
            transform: scale(1.06);
        }
        .category-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.55));
        }
        .category-tag {
            position: absolute;
            top: 18px;
            left: 18px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 24px;
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(4px);
        }
        .category-body {
            padding: 30px 30px 34px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-body h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px;
        }
        .category-body p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 20px;
            flex: 1;
        }
        .link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            color: var(--primary);
        }
        .link-arrow i {
            transition: transform 0.3s ease;
        }
        .link-arrow:hover {
            color: var(--gold);
        }
        .link-arrow:hover i {
            transform: translateX(4px);
        }
        /* ======== About ======== */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }
        .about-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .about-media img {
            width: 100%;
            height: 460px;
            object-fit: cover;
        }
        .about-media .about-badge {
            position: absolute;
            bottom: 24px;
            left: 24px;
            background: rgba(255, 255, 255, 0.95);
            padding: 18px 26px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            backdrop-filter: blur(8px);
        }
        .about-badge .badge-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
        }
        .about-badge .badge-num span {
            color: var(--gold);
        }
        .about-badge .badge-text {
            font-size: 13px;
            color: var(--text-muted);
        }
        .about-content .eyebrow {
            display: inline-block;
            background: rgba(201, 168, 92, 0.12);
            color: var(--gold);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 18px;
            text-transform: uppercase;
        }
        .about-content h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.3;
            margin: 0 0 20px;
            letter-spacing: -0.5px;
        }
        .about-content p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-muted);
            margin: 0 0 18px;
        }
        .about-points {
            margin: 28px 0 0;
            padding: 0;
            list-style: none;
        }
        .about-points li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text-body);
            padding: 8px 0;
        }
        .about-points li i {
            color: var(--gold);
            font-size: 16px;
            margin-top: 5px;
        }
        /* ======== News ======== */
        .news-section {
            background: var(--bg-light);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
            margin-bottom: 44px;
        }
        .news-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 30px 32px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            border-color: rgba(201, 168, 92, 0.4);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .news-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
        }
        .news-cat {
            display: inline-block;
            background: rgba(27, 42, 94, 0.07);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
        }
        .news-cat.gold {
            background: rgba(201, 168, 92, 0.14);
            color: var(--gold);
        }
        .news-date {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .news-date i {
            font-size: 13px;
        }
        .news-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px;
            line-height: 1.45;
        }
        .news-card h3 a {
            color: inherit;
        }
        .news-card h3 a:hover {
            color: var(--gold);
        }
        .news-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-link i {
            font-size: 12px;
            transition: transform 0.3s ease;
        }
        .news-link:hover {
            color: var(--gold);
        }
        .news-link:hover i {
            transform: translateX(4px);
        }
        .empty-tip {
            text-align: center;
            padding: 60px 30px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
            color: var(--text-muted);
            font-size: 16px;
        }
        /* ======== Stats ======== */
        .stats-section {
            background: var(--bg-dark);
            padding: 90px 0;
            background-image: linear-gradient(rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.94)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
        }
        .stats-item .stats-num {
            font-size: 46px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -1px;
        }
        .stats-item .stats-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.65);
        }
        /* ======== Process ======== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .process-step {
            text-align: center;
            padding: 40px 24px;
            border-radius: var(--radius-lg);
            background: var(--bg-white);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }
        .process-step:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(201, 168, 92, 0.3);
        }
        .step-num {
            width: 56px;
            height: 56px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent-light);
            font-size: 20px;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
        }
        .step-num.gold {
            background: linear-gradient(135deg, var(--accent), var(--gold));
            color: #fff;
        }
        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 10px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.65;
        }
        /* ======== FAQ ======== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(201, 168, 92, 0.35);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 22px 28px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            text-align: left;
            transition: var(--transition);
            font-family: var(--font-body);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer-inner {
            padding: 0 28px 24px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        /* ======== CTA ======== */
        .cta-section {
            border-radius: 0;
            padding: 120px 0;
            position: relative;
        }
        .cta-inner {
            background: linear-gradient(135deg, var(--primary), var(--primary-light) 50%, #2d4a8a);
            border-radius: var(--radius-lg);
            padding: 70px 60px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-inner::before {
            content: '';
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            top: -100px;
            right: -60px;
        }
        .cta-inner h2 {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: -1px;
            position: relative;
            z-index: 2;
        }
        .cta-inner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            margin: 0 auto 36px;
            max-width: 520px;
            line-height: 1.7;
            position: relative;
            z-index: 2;
        }
        .cta-inner .btn-group {
            position: relative;
            z-index: 2;
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        /* ======== Footer ======== */
        .site-footer {
            background: #111827;
            color: rgba(255, 255, 255, 0.65);
            padding: 70px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.2fr;
            gap: 50px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .brand-text {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            display: block;
            margin-top: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin: 16px 0 0;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 20px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-info {
            font-size: 14px;
            line-height: 1.8;
        }
        .footer-info p {
            margin: 0 0 10px;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-info i {
            color: var(--accent);
            width: 18px;
        }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom .copyright {
            margin: 0;
        }
        /* ======== Responsive ======== */
        @media (max-width: 1024px) {
            .nav-search {
                width: 140px;
            }
            .brand-text {
                font-size: 17px;
            }
            .hero h1 {
                font-size: 44px;
            }
            .features-grid {
                gap: 24px;
            }
            .category-grid {
                gap: 24px;
            }
            .feature-card {
                padding: 32px 26px;
            }
            .category-img {
                height: 180px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 70px 0;
            }
            .container {
                padding: 0 20px;
            }
            .section-header h2 {
                font-size: 30px;
            }
            .header-inner {
                height: 68px;
            }
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .brand-text {
                font-size: 16px;
            }
            .nav-search {
                display: none;
            }
            .nav-actions .btn {
                display: none;
            }
            .hero {
                padding: 90px 0 80px;
            }
            .hero h1 {
                font-size: 36px;
            }
            .hero-desc {
                font-size: 16px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
                margin-bottom: 40px;
            }
            .hero-stats {
                gap: 30px;
                padding-top: 24px;
            }
            .stat-item .stat-num {
                font-size: 26px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .category-img {
                height: 200px;
            }
            .about-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .about-media img {
                height: 320px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .stats-item .stats-num {
                font-size: 34px;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .cta-inner {
                padding: 48px 30px;
            }
            .cta-inner h2 {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }
        @media (max-width: 520px) {
            .brand-text {
                font-size: 15px;
                max-width: 160px;
                white-space: normal;
                line-height: 1.3;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero .btn {
                width: 100%;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .news-card {
                padding: 24px 20px;
            }
            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-answer-inner {
                padding: 0 20px 20px;
            }
            .cta-inner {
                border-radius: var(--radius-md);
            }
            .cta-inner .btn-group .btn {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #3b5bfd;
  --primary-light: #e8edff;
  --primary-dark: #2743c7;
  --accent: #ff6b5e;
  --accent-light: #ffece8;
  --bg: #f5f7fc;
  --bg-white: #ffffff;
  --bg-dark: #12182b;
  --text: #1a2138;
  --text-weak: #6b7490;
  --text-muted: #8a93ab;
  --border: #e4e8f2;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(20, 32, 68, 0.05);
  --shadow-md: 0 10px 30px rgba(20, 32, 68, 0.08);
  --shadow-lg: 0 24px 60px rgba(20, 32, 68, 0.12);
  --transition: all 0.25s ease;
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; padding: 0; margin: 0; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-white); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head .eyebrow { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 700; letter-spacing: 1px; padding: 6px 16px; border-radius: 100px; margin-bottom: 14px; }
.section-head h2 { font-size: 34px; line-height: 1.3; font-weight: 800; letter-spacing: -1px; margin-bottom: 14px; }
.section-head p { color: var(--text-weak); font-size: 16px; }

/* Header */
.site-header { background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.nav-bar { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon { width: 38px; height: 38px; background: linear-gradient(135deg, var(--primary), #6d8dff); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; box-shadow: 0 4px 12px rgba(59,91,253,0.3); }
.brand-text { font-size: 20px; font-weight: 800; letter-spacing: -0.5px; color: var(--text); }
.main-nav { display: flex; align-items: center; gap: 4px; margin: 0; }
.main-nav .nav-link { display: inline-block; padding: 9px 16px; border-radius: 100px; font-size: 14px; font-weight: 600; color: var(--text-weak); transition: var(--transition); }
.main-nav .nav-link:hover { color: var(--primary); background: var(--primary-light); }
.main-nav .nav-link.active { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(59,91,253,0.28); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.search-box { position: relative; }
.search-box input { width: 220px; height: 40px; border: 1px solid var(--border); border-radius: 100px; padding: 0 38px 0 16px; font-size: 14px; background: var(--bg); color: var(--text); outline: none; transition: var(--transition); }
.search-box input:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 4px rgba(59,91,253,0.1); }
.search-box i { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 14px; pointer-events: none; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 100px; font-weight: 700; font-size: 14px; padding: 11px 22px; border: none; cursor: pointer; text-decoration: none; line-height: 1; transition: var(--transition); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(59,91,253,0.28); }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 22px rgba(59,91,253,0.36); }
.btn-outline { background: #fff; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--text); box-shadow: var(--shadow-md); }
.btn-light:hover { background: #f8f9fd; color: var(--primary); transform: translateY(-2px); }
.btn-sm { padding: 8px 16px; font-size: 13px; }

/* Page Hero */
.page-hero { position: relative; padding: 96px 0 74px; background: linear-gradient(135deg, rgba(18,24,43,0.88), rgba(33,46,94,0.82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat; color: #fff; text-align: center; }
.page-hero .breadcrumb { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.12); backdrop-filter: blur(6px); padding: 7px 18px; border-radius: 100px; font-size: 13px; color: rgba(255,255,255,0.85); margin-bottom: 24px; }
.page-hero .breadcrumb a { color: rgba(255,255,255,0.75); }
.page-hero .breadcrumb a:hover { color: #fff; }
.page-hero h1 { font-size: 44px; font-weight: 900; letter-spacing: -1.5px; line-height: 1.25; margin-bottom: 16px; }
.page-hero p { max-width: 620px; margin: 0 auto; font-size: 17px; color: rgba(255,255,255,0.82); }

/* Stats */
.stats-wrap { margin-top: 48px; display: flex; justify-content: center; gap: 32px; flex-wrap: wrap; }
.stats-wrap .stat-item { background: rgba(255,255,255,0.1); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.15); border-radius: var(--radius-md); padding: 18px 32px; min-width: 150px; }
.stats-wrap .stat-item strong { display: block; font-size: 28px; font-weight: 900; color: #fff; }
.stats-wrap .stat-item span { font-size: 13px; color: rgba(255,255,255,0.72); }

/* Guide Intro */
.guide-intro { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
.guide-intro .intro-copy h2 { font-size: 32px; font-weight: 800; letter-spacing: -1px; line-height: 1.3; margin-bottom: 18px; }
.guide-intro .intro-copy p { color: var(--text-weak); margin-bottom: 18px; font-size: 15.5px; }
.guide-intro .intro-list { margin-top: 22px; display: grid; gap: 14px; }
.guide-intro .intro-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; color: var(--text); }
.guide-intro .intro-list i { color: var(--primary); background: var(--primary-light); width: 26px; height: 26px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; margin-top: 2px; flex-shrink: 0; }
.guide-intro .intro-media { position: relative; }
.guide-intro .intro-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); height: 400px; object-fit: cover; width: 100%; }
.guide-intro .intro-media .badge-float { position: absolute; bottom: 18px; left: 18px; background: rgba(255,255,255,0.95); backdrop-filter: blur(8px); border-radius: var(--radius-md); padding: 12px 18px; box-shadow: var(--shadow-md); display: flex; align-items: center; gap: 12px; }
.guide-intro .badge-float i { color: var(--accent); font-size: 20px; }
.guide-intro .badge-float strong { display: block; font-size: 15px; }
.guide-intro .badge-float span { font-size: 12px; color: var(--text-weak); }

/* Category Cards */
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.category-card { background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--border); display: flex; flex-direction: column; }
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.category-card .card-img { position: relative; height: 200px; overflow: hidden; }
.category-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.category-card:hover .card-img img { transform: scale(1.06); }
.category-card .card-img .tag { position: absolute; top: 14px; left: 14px; background: rgba(255,255,255,0.94); color: var(--primary); font-size: 12px; font-weight: 800; padding: 5px 12px; border-radius: 100px; box-shadow: var(--shadow-sm); }
.category-card .card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.category-card .card-body h3 { font-size: 19px; font-weight: 800; margin-bottom: 10px; }
.category-card .card-body p { font-size: 14px; color: var(--text-weak); margin-bottom: 16px; flex: 1; }
.category-card .card-body .card-link { font-weight: 700; font-size: 14px; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.category-card .card-body .card-link i { transition: transform 0.25s ease; }
.category-card .card-body .card-link:hover i { transform: translateX(4px); }

/* Match List */
.match-section { background: var(--bg-white); }
.match-list { display: grid; gap: 16px; max-width: 860px; margin: 0 auto; }
.match-item { display: flex; align-items: center; justify-content: space-between; background: var(--bg); border-radius: var(--radius-md); padding: 20px 26px; border: 1px solid var(--border); transition: var(--transition); }
.match-item:hover { background: var(--primary-light); border-color: rgba(59,91,253,0.25); transform: translateX(4px); }
.match-item .match-date { min-width: 96px; }
.match-item .match-date strong { display: block; font-size: 18px; font-weight: 900; color: var(--text); }
.match-item .match-date span { font-size: 12.5px; color: var(--text-weak); }
.match-item .match-info { flex: 1; padding: 0 20px; }
.match-item .match-info h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.match-item .match-info p { font-size: 13px; color: var(--text-weak); }
.match-item .match-status { background: var(--accent-light); color: #ff4d3e; font-size: 12px; font-weight: 700; padding: 5px 14px; border-radius: 100px; white-space: nowrap; }
.match-item .match-status.live { background: rgba(255,75,58,0.12); color: #ff4d3e; animation: pulse 1.8s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.6; } }

/* Viewer Guide / Steps */
.steps-wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step-card { text-align: center; padding: 36px 24px 30px; background: var(--bg-white); border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow-sm); position: relative; transition: var(--transition); }
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.step-card .step-num { position: absolute; top: 16px; right: 20px; font-size: 40px; font-weight: 900; color: rgba(59,91,253,0.10); line-height: 1; }
.step-card .step-icon { width: 58px; height: 58px; border-radius: 18px; background: linear-gradient(135deg, var(--primary), #6d8dff); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 20px; box-shadow: 0 8px 20px rgba(59,91,253,0.28); }
.step-card h3 { font-size: 17px; font-weight: 800; margin-bottom: 10px; }
.step-card p { font-size: 13.5px; color: var(--text-weak); }

/* Dark CTA */
.cta-dark { position: relative; background: linear-gradient(135deg, rgba(18,24,43,0.94), rgba(38,52,94,0.9)), url('/assets/images/backpic/back-3.png') center/cover no-repeat; padding: 80px 0; color: #fff; text-align: center; }
.cta-dark .cta-inner { max-width: 660px; margin: 0 auto; }
.cta-dark h2 { font-size: 34px; font-weight: 900; letter-spacing: -1px; margin-bottom: 14px; }
.cta-dark p { color: rgba(255,255,255,0.78); font-size: 16px; margin-bottom: 32px; }
.cta-dark .cta-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* FAQ */
.faq-wrap { max-width: 800px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 22px 28px; transition: var(--transition); }
.faq-item:hover { border-color: rgba(59,91,253,0.28); box-shadow: var(--shadow-sm); }
.faq-item h3 { font-size: 16px; font-weight: 700; color: var(--text); display: flex; gap: 12px; align-items: flex-start; margin-bottom: 6px; }
.faq-item h3 i { color: var(--primary); font-size: 14px; margin-top: 5px; flex-shrink: 0; }
.faq-item p { font-size: 14px; color: var(--text-weak); padding-left: 26px; }

/* Footer */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.72); padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px; margin-bottom: 44px; }
.footer-brand .brand-text { color: #fff; font-size: 22px; margin-left: 4px; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.58); margin-top: 16px; max-width: 340px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 800; margin-bottom: 18px; letter-spacing: 0.5px; }
.footer-col a { display: block; color: rgba(255,255,255,0.62); font-size: 14px; padding: 5px 0; transition: var(--transition); }
.footer-col a:hover { color: #fff; transform: translateX(4px); }
.footer-info p { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,0.62); padding: 5px 0; }
.footer-info i { width: 18px; color: #6d8dff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; text-align: center; }
.footer-bottom .copyright { font-size: 13px; color: rgba(255,255,255,0.45); }

/* Responsive */
@media (max-width: 1024px) {
  .section { padding: 64px 0; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-wrap { grid-template-columns: repeat(2, 1fr); }
  .guide-intro { grid-template-columns: 1fr; gap: 36px; }
  .main-nav .nav-link { padding: 8px 12px; font-size: 13px; }
  .search-box input { width: 160px; }
}
@media (max-width: 768px) {
  .nav-bar { height: auto; padding: 12px 0; flex-wrap: wrap; gap: 12px; }
  .main-nav { order: 3; width: 100%; overflow-x: auto; display: flex; gap: 8px; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
  .main-nav .nav-link { white-space: nowrap; flex-shrink: 0; }
  .nav-actions { margin-left: auto; }
  .search-box input { width: 170px; }
  .page-hero h1 { font-size: 34px; }
  .section-head h2 { font-size: 27px; }
  .stats-wrap { gap: 16px; }
  .stats-wrap .stat-item { min-width: 130px; padding: 14px 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .guide-intro .intro-media img { height: 300px; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .section { padding: 52px 0; }
  .category-grid { grid-template-columns: 1fr; }
  .steps-wrap { grid-template-columns: 1fr; }
  .page-hero { padding: 70px 0 54px; }
  .page-hero h1 { font-size: 29px; }
  .page-hero p { font-size: 15px; }
  .stats-wrap { gap: 12px; }
  .stats-wrap .stat-item { min-width: 108px; padding: 12px 14px; }
  .stats-wrap .stat-item strong { font-size: 22px; }
  .match-item { flex-wrap: wrap; gap: 12px; padding: 16px; }
  .match-item .match-info { padding: 0; flex: 0 0 100%; order: 3; }
  .match-item .match-status { margin-left: auto; }
  .cta-dark h2 { font-size: 28px; }
  .cta-dark .cta-btns { flex-direction: column; align-items: center; }
  .search-box { display: none; }
  .nav-actions .btn-sm { padding: 8px 14px; font-size: 12.5px; }
}

/* roulang page: category2 */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #a5b4fc;
  --accent: #f59e0b;
  --accent-light: #fcd34d;
  --bg-dark: #0f172a;
  --bg-darker: #0b1120;
  --bg-light: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
  --space-section: 96px;
  --font-body: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); color: var(--text-main); background: var(--bg-light); line-height: 1.7; font-size: 16px; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: var(--primary); transition: all 0.3s ease; }
a:hover, a:focus { color: var(--primary-dark); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; width: 100%; }
.text-center { text-align: center; }

/* Header & Nav */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(226,232,240,0.6);
  box-shadow: 0 2px 20px rgba(15,23,42,0.04);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 24px; }
.logo-wrap { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 18px; box-shadow: 0 4px 14px rgba(99,102,241,0.35);
}
.logo-text { font-size: 19px; font-weight: 800; color: var(--text-main); letter-spacing: -0.5px; }
.logo-text span { color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 6px; margin: 0 auto; }
.main-nav .nav-link {
  padding: 8px 16px; border-radius: 999px;
  font-size: 15px; font-weight: 500; color: var(--text-muted);
  transition: all 0.3s ease; position: relative;
}
.main-nav .nav-link:hover { color: var(--primary); background: rgba(99,102,241,0.08); }
.main-nav .nav-link.active { color: var(--primary); background: rgba(99,102,241,0.12); font-weight: 600; }
.nav-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-search {
  display: flex; align-items: center;
  background: var(--bg-light); border: 1px solid var(--border);
  border-radius: 999px; padding: 6px 14px; gap: 8px;
  transition: all 0.3s ease; width: 190px;
}
.nav-search:hover, .nav-search:focus-within { border-color: var(--primary-light); box-shadow: 0 0 0 4px rgba(99,102,241,0.08); }
.nav-search i { font-size: 13px; color: var(--text-light); }
.nav-search input {
  width: 100%; border: none; outline: none; background: transparent;
  font-size: 13px; color: var(--text-main);
}
.nav-search input::placeholder { color: var(--text-light); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 24px; border-radius: 999px;
  font-size: 15px; font-weight: 600; border: none;
  transition: all 0.35s ease; cursor: pointer; white-space: nowrap;
}
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; box-shadow: 0 4px 16px rgba(99,102,241,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(99,102,241,0.45); color: #fff; }
.btn-outline { background: transparent; border: 1.5px solid var(--border); color: var(--text-main); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(99,102,241,0.04); transform: translateY(-2px); }
.btn-sm { padding: 7px 16px; font-size: 13px; }
.nav-cta-btn { margin-left: 4px; }
.menu-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--text-main); }

/* Page Hero Banner */
.page-banner {
  position: relative; padding: 80px 0 72px; overflow: hidden;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1e1b4b 50%, #312e81 100%);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover; background-position: center 30%;
}
.page-banner::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(11,17,32,0.92) 20%, rgba(30,27,75,0.78) 60%, rgba(49,46,129,0.55) 100%);
}
.banner-content { position: relative; z-index: 2; text-align: center; max-width: 720px; margin: 0 auto; }
.banner-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2);
  color: #c7d2fe; padding: 6px 16px; border-radius: 999px;
  font-size: 13px; font-weight: 500; margin-bottom: 18px;
  backdrop-filter: blur(8px);
}
.page-banner h1 { font-size: 42px; font-weight: 800; color: #fff; letter-spacing: -1px; line-height: 1.25; margin-bottom: 14px; }
.page-banner h1 em { font-style: normal; color: var(--accent-light); }
.page-banner p { font-size: 17px; color: rgba(255,255,255,0.85); line-height: 1.8; margin-bottom: 28px; }
.banner-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.banner-actions .btn-light { background: #fff; color: var(--primary-dark); box-shadow: 0 4px 20px rgba(0,0,0,0.15); }
.banner-actions .btn-light:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,0.2); color: var(--primary-dark); }
.banner-actions .btn-ghost-light { background: rgba(255,255,255,0.1); color: #fff; border: 1.5px solid rgba(255,255,255,0.3); }
.banner-actions .btn-ghost-light:hover { background: rgba(255,255,255,0.2); color: #fff; transform: translateY(-2px); }

/* Breadcrumb */
.breadcrumb-bar { background: #fff; border-bottom: 1px solid var(--border); padding: 14px 0; }
.breadcrumb-bar .container { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-muted); }
.breadcrumb-bar a { color: var(--text-muted); }
.breadcrumb-bar a:hover { color: var(--primary); }
.breadcrumb-bar i { font-size: 11px; color: var(--text-light); }
.breadcrumb-bar span { color: var(--text-main); font-weight: 500; }

/* Section helpers */
.section { padding: var(--space-section) 0; }
.section-light { background: var(--bg-light); }
.section-white { background: #fff; }
.section-dark { background: var(--bg-dark); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700;
  color: var(--primary); letter-spacing: 2px; text-transform: uppercase;
  background: rgba(99,102,241,0.08); padding: 6px 14px; border-radius: 999px;
  margin-bottom: 14px;
}
.section-head h2 { font-size: 34px; font-weight: 800; color: var(--text-main); letter-spacing: -0.5px; line-height: 1.3; margin-bottom: 12px; }
.section-head p { font-size: 16px; color: var(--text-muted); line-height: 1.8; }

/* Service Highlight Cards */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 48px; }
.service-card {
  background: #fff; border-radius: var(--radius-lg);
  padding: 32px 28px; border: 1px solid var(--border);
  transition: all 0.4s ease; position: relative;
  box-shadow: var(--shadow-sm);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.service-icon {
  width: 56px; height: 56px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 18px; color: var(--primary);
  background: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(99,102,241,0.04));
}
.service-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; color: var(--text-main); }
.service-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }
.service-card .service-link { margin-top: 16px; display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--primary); }
.service-card .service-link:hover { gap: 10px; }

/* FAQ Section */
.faq-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 960px; margin: 0 auto; }
.faq-item {
  background: #fff; border-radius: var(--radius-md);
  padding: 24px 28px; border: 1px solid var(--border);
  transition: all 0.3s ease;
}
.faq-item:hover { box-shadow: var(--shadow-sm); border-color: var(--primary-light); }
.faq-question { font-size: 17px; font-weight: 700; color: var(--text-main); margin-bottom: 8px; display: flex; align-items: baseline; gap: 10px; }
.faq-question .q-num { color: var(--primary); font-size: 14px; font-weight: 800; }
.faq-answer { font-size: 15px; color: var(--text-muted); line-height: 1.75; padding-left: 24px; }

/* Guide Flow */
.flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.flow-step {
  text-align: center; padding: 36px 20px 28px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg); position: relative;
  transition: all 0.4s ease;
}
.flow-step:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
.flow-num {
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 18px;
  margin: 0 auto 18px; box-shadow: 0 4px 16px rgba(99,102,241,0.4);
}
.flow-step h4 { color: #fff; font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.flow-step p { color: rgba(255,255,255,0.7); font-size: 14px; line-height: 1.7; }
.flow-step::after {
  content: ''; position: absolute; top: 50%; right: -14px;
  border-top: 2px dashed rgba(255,255,255,0.2);
  width: 28px; transform: translateY(-50%);
}
.flow-step:last-child::after { display: none; }

/* Content Cards - Help Articles */
.help-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.help-card {
  background: #fff; border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); transition: all 0.4s ease;
  display: flex; flex-direction: column;
}
.help-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.help-thumb { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.help-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.help-card:hover .help-thumb img { transform: scale(1.06); }
.help-thumb::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(11,17,32,0.5), transparent 60%);
}
.help-cat {
  position: absolute; left: 16px; bottom: 14px; z-index: 2;
  background: rgba(255,255,255,0.16); backdrop-filter: blur(8px);
  color: #fff; font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.25);
}
.help-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.help-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--text-main); line-height: 1.5; }
.help-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 14px; flex: 1; }
.help-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--text-light); }
.help-meta span { display: inline-flex; align-items: center; gap: 5px; }

/* Stats block */
.stats-block { background: linear-gradient(135deg, #f1f5f9 0%, #eef2ff 100%); border-radius: var(--radius-lg); padding: 48px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; border: 1px solid var(--border); }
.stat-item { text-align: center; }
.stat-item .stat-num { font-size: 40px; font-weight: 800; color: var(--primary); margin-bottom: 4px; letter-spacing: -1px; }
.stat-item .stat-label { font-size: 15px; color: var(--text-muted); font-weight: 500; }

/* CTA */
.cta-section { padding: 56px 0 96px; }
.cta-box {
  position: relative; border-radius: 28px; overflow: hidden;
  padding: 72px 48px; text-align: center;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover; background-position: center;
}
.cta-box::before { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(79,70,229,0.92), rgba(15,23,42,0.88)); }
.cta-inner { position: relative; z-index: 2; max-width: 640px; margin: 0 auto; }
.cta-inner h2 { color: #fff; font-size: 36px; font-weight: 800; margin-bottom: 14px; letter-spacing: -0.5px; }
.cta-inner p { color: rgba(255,255,255,0.82); font-size: 17px; margin-bottom: 28px; line-height: 1.8; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-actions .btn-white { background: #fff; color: var(--primary-dark); box-shadow: 0 4px 24px rgba(0,0,0,0.15); padding: 14px 32px; font-size: 16px; }
.cta-actions .btn-white:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(0,0,0,0.2); }
.cta-actions .btn-outline-white { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.4); padding: 14px 32px; font-size: 16px; }
.cta-actions .btn-outline-white:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.7); transform: translateY(-3px); color: #fff; }

/* Footer */
.site-footer {
  background: var(--bg-darker); color: rgba(255,255,255,0.65);
  padding: 72px 0 0; margin-top: 0;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .logo-icon { margin-bottom: 18px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.footer-brand .brand { display: inline-flex; }
.footer-brand .brand-text { font-size: 20px; font-weight: 800; color: #fff; display: block; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.55); max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 20px; position: relative; padding-bottom: 10px; }
.footer-col h4::after {
  content: ''; position: absolute; left: 0; bottom: 0;
  width: 32px; height: 3px; border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
}
.footer-col a {
  display: block; color: rgba(255,255,255,0.55); font-size: 14px;
  padding: 6px 0; transition: all 0.3s ease;
}
.footer-col a:hover { color: #fff; padding-left: 6px; }
.footer-info p { display: flex; align-items: center; gap: 8px; font-size: 14px; padding: 6px 0; color: rgba(255,255,255,0.55); }
.footer-info i { color: var(--primary-light); width: 16px; text-align: center; }
.footer-bottom { padding: 28px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 14px; color: rgba(255,255,255,0.4); }
.footer-bottom .safe-tag { display: flex; gap: 8px; align-items: center; }
.footer-bottom .safe-tag i { color: #34d399; }
.footer-bottom .safe-tag span { background: rgba(52,211,153,0.12); color: #6ee7b7; padding: 4px 12px; border-radius: 999px; font-size: 12px; }

/* Responsive */
@media (max-width: 1024px) {
  .main-nav { gap: 2px; }
  .main-nav .nav-link { padding: 8px 12px; font-size: 14px; }
  .nav-search { width: 150px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .help-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-step::after { display: none; }
  .stats-block { grid-template-columns: repeat(2, 1fr); padding: 40px 24px; }
  .faq-wrap { grid-template-columns: 1fr; max-width: 100%; }
  .page-banner h1 { font-size: 36px; }
}

@media (max-width: 768px) {
  :root { --space-section: 64px; }
  .nav-wrap { height: 64px; }
  .main-nav {
    position: fixed; top: 64px; left: -100%; 
    background: #fff; width: 100%; max-height: calc(100vh - 64px);
    flex-direction: column; align-items: stretch; padding: 24px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.12);
    transition: left 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    border-bottom: 1px solid var(--border);
  }
  .main-nav.open { left: 0; }
  .main-nav .nav-link { padding: 14px 20px; font-size: 16px; border-radius: var(--radius-sm); }
  .main-nav .nav-link.active { background: rgba(99,102,241,0.08); }
  .nav-search { display: none; }
  .menu-toggle { display: block; }
  .nav-cta-btn { display: none; }
  .page-banner { padding: 56px 0 48px; }
  .page-banner h1 { font-size: 30px; }
  .section-head h2 { font-size: 26px; }
  .service-grid { grid-template-columns: 1fr; }
  .help-grid { grid-template-columns: 1fr; }
  .flow-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stats-block { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
  .cta-box { padding: 48px 24px; }
  .cta-inner h2 { font-size: 28px; }
  .faq-wrap { grid-template-columns: 1fr; }
  .breadcrumb-bar { font-size: 13px; overflow-x: auto; white-space: nowrap; }
}

@media (max-width: 520px) {
  .flow-grid { grid-template-columns: 1fr; }
  .stats-block { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .page-banner h1 { font-size: 26px; }
  .banner-actions .btn { padding: 10px 18px; font-size: 14px; }
  .section-head h2 { font-size: 24px; }
  .help-body h3 { font-size: 16px; }
  .faq-question { font-size: 15px; }
}

/* roulang page: article */
:root {
  --primary: #1e2a4a;
  --primary-dark: #141d38;
  --primary-light: #2e3f66;
  --accent: #d4a853;
  --accent-light: #f0c96a;
  --bg: #f5f7fb;
  --bg-white: #ffffff;
  --text: #1a1d29;
  --text-light: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 60px rgba(21, 32, 64, 0.14);
  --transition: all 0.3s ease;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
img {
  max-width: 100%;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.75);
  box-shadow: 0 1px 12px rgba(15, 23, 42, 0.04);
  height: 74px;
  display: flex;
  align-items: center;
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent), #e8b85c);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.05rem;
  box-shadow: 0 4px 12px rgba(212, 168, 83, 0.35);
}
.brand-text {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--primary);
  white-space: nowrap;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  display: block;
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover {
  background: rgba(30, 42, 74, 0.06);
  color: var(--primary);
}
.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(30, 42, 74, 0.22);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-field {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(30, 42, 74, 0.05);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  width: 210px;
  transition: var(--transition);
}
.search-field:focus-within {
  width: 240px;
  background: #fff;
  border-color: rgba(212, 168, 83, 0.5);
  box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.15);
}
.search-field i {
  color: var(--text-light);
  font-size: 0.9rem;
}
.search-field input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.88rem;
  width: 100%;
  color: var(--text);
}
.search-field input::placeholder {
  color: #94a3b8;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.92rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #e8b85c);
  color: var(--primary-dark);
  box-shadow: 0 4px 16px rgba(212, 168, 83, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(212, 168, 83, 0.45);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(212, 168, 83, 0.3);
}
.btn-sm {
  padding: 9px 20px;
  font-size: 0.85rem;
}
.btn-lg {
  padding: 14px 34px;
  font-size: 1rem;
}
.btn-ghost {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: #fff;
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  transform: translateY(-2px);
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.35rem;
  color: var(--primary);
  padding: 8px;
  cursor: pointer;
  border-radius: 8px;
  transition: var(--transition);
}
.menu-toggle:hover {
  background: rgba(30, 42, 74, 0.06);
}
.article-hero {
  position: relative;
  padding: 100px 0 78px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(30, 42, 74, 0.74) 50%, rgba(70, 52, 20, 0.48));
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.85rem;
  margin-bottom: 28px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
}
.breadcrumb a:hover {
  color: var(--accent-light);
}
.breadcrumb .sep {
  font-size: 0.7rem;
  opacity: 0.6;
}
.breadcrumb .current {
  color: rgba(255, 255, 255, 0.95);
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 15px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
}
.badge-accent {
  background: rgba(212, 168, 83, 0.16);
  color: var(--accent-light);
  border: 1px solid rgba(212, 168, 83, 0.3);
}
.meta-time {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.86rem;
}
.hero-title {
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  font-weight: 800;
  line-height: 1.22;
  color: #fff;
  margin: 0 0 16px;
  max-width: 860px;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.28);
}
.hero-desc {
  font-size: 1.04rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
  max-width: 720px;
  margin: 0;
}
.article-main {
  padding: 60px 0 50px;
}
.article-body {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(24px, 4vw, 48px);
  margin-bottom: 24px;
}
.content-html {
  font-size: 1.02rem;
  line-height: 1.9;
  color: #2d3748;
}
.content-html p {
  margin-bottom: 1.3em;
}
.content-html h2,
.content-html h3,
.content-html h4 {
  color: var(--primary);
  font-weight: 700;
  margin: 1.7em 0 0.65em;
  line-height: 1.35;
}
.content-html h2 {
  font-size: 1.5rem;
}
.content-html h3 {
  font-size: 1.28rem;
}
.content-html h4 {
  font-size: 1.12rem;
}
.content-html a {
  color: #b8862d;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.content-html a:hover {
  color: var(--primary);
}
.content-html img {
  border-radius: 14px;
  margin: 20px 0;
  box-shadow: var(--shadow-sm);
}
.content-html blockquote {
  border-left: 4px solid var(--accent);
  background: rgba(212, 168, 83, 0.08);
  padding: 16px 20px;
  border-radius: 0 14px 14px 0;
  margin: 22px 0;
  color: #475569;
  font-style: normal;
}
.content-html ul,
.content-html ol {
  margin: 0 0 1.2em 1.4em;
}
.content-html li {
  margin-bottom: 0.45em;
}
.content-html table {
  width: 100%;
  border-collapse: collapse;
  margin: 22px 0;
  font-size: 0.93rem;
}
.content-html th {
  background: var(--primary);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
}
.content-html td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.content-html tr:nth-child(even) td {
  background: rgba(30, 42, 74, 0.03);
}
.not-found {
  text-align: center;
  padding: 50px 20px;
}
.not-found i {
  font-size: 4rem;
  color: rgba(30, 42, 74, 0.18);
  margin-bottom: 18px;
  display: block;
}
.not-found h2 {
  font-size: 1.6rem;
  color: var(--text);
  margin-bottom: 10px;
}
.not-found p {
  color: var(--text-light);
  margin-bottom: 24px;
}
.article-share {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 18px 22px;
}
.share-label {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.share-label i {
  color: var(--accent);
}
.share-icons {
  display: flex;
  gap: 10px;
}
.share-btn {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(30, 42, 74, 0.06);
  color: var(--primary);
  transition: var(--transition);
}
.share-btn:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(30, 42, 74, 0.2);
}
.sidebar-sticky {
  position: sticky;
  top: 94px;
}
@media (max-width: 1023px) {
  .sidebar-sticky {
    position: static;
    margin-top: 28px;
  }
}
.sidebar-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  margin-bottom: 24px;
}
.sidebar-card h3 {
  font-size: 1.02rem;
  font-weight: 800;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
}
.sidebar-card h3::before {
  content: "";
  width: 4px;
  height: 18px;
  background: var(--accent);
  border-radius: 3px;
}
.cat-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 12px;
  color: var(--text);
  font-weight: 600;
  font-size: 0.92rem;
  transition: var(--transition);
  margin-bottom: 6px;
}
.cat-link:hover {
  background: rgba(212, 168, 83, 0.1);
  transform: translateX(4px);
  color: var(--primary);
}
.cat-link i {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(30, 42, 74, 0.07);
  color: var(--primary);
  border-radius: 9px;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.hot-list {
  list-style: none;
}
.hot-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.hot-item:last-child {
  border-bottom: none;
  padding-bottom: 4px;
}
.hot-item:hover {
  padding-left: 6px;
}
.hot-index {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--accent);
  background: rgba(212, 168, 83, 0.13);
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  flex-shrink: 0;
  margin-top: 2px;
}
.hot-item-title {
  font-size: 0.89rem;
  line-height: 1.55;
  color: var(--text);
  font-weight: 500;
}
.empty-text {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.7;
}
.related-section {
  padding: 70px 0;
  background: #fff;
}
.section-head {
  margin-bottom: 40px;
}
.section-head.center {
  text-align: center;
}
.section-tag {
  display: inline-block;
  background: rgba(212, 168, 83, 0.14);
  color: #b8862d;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
  line-height: 1.3;
}
.section-head p {
  color: var(--text-light);
  font-size: 0.98rem;
  max-width: 640px;
  margin: 0;
}
.section-head.center p {
  margin-left: auto;
  margin-right: auto;
}
.article-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(212, 168, 83, 0.4);
}
.card-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.article-card:hover .card-cover img {
  transform: scale(1.06);
}
.cover-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  padding: 5px 13px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 600;
}
.card-body {
  padding: 22px 22px 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-body h3 {
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.45;
  color: var(--text);
}
.card-body h3 a:hover {
  color: var(--primary);
}
.card-body p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
  flex: 1;
}
.card-meta {
  margin-top: 16px;
  color: var(--text-light);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.empty-block {
  background: #fff;
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  color: var(--text-light);
  border: 1px dashed var(--border);
}
.category-section {
  padding: 70px 0;
  background: linear-gradient(180deg, #fff, var(--bg));
}
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cat-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px 26px 26px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.cat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(212, 168, 83, 0.5);
}
.cat-icon {
  width: 58px;
  height: 58px;
  margin: 0 auto 18px;
  background: linear-gradient(135deg, rgba(30, 42, 74, 0.08), rgba(212, 168, 83, 0.14));
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  color: var(--primary);
  transition: var(--transition);
}
.cat-card:hover .cat-icon {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  transform: scale(1.05);
}
.cat-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
.cat-card p {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.65;
  margin-bottom: 18px;
}
.cat-more {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
}
.cat-more i {
  transition: transform 0.3s ease;
}
.cat-card:hover .cat-more i {
  transform: translateX(4px);
}
.cta-section {
  position: relative;
  padding: 84px 0;
  overflow: hidden;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(20, 29, 56, 0.92), rgba(30, 42, 74, 0.82), rgba(46, 63, 102, 0.88));
  z-index: 1;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.cta-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(212, 168, 83, 0.15);
  border: 1px solid rgba(212, 168, 83, 0.35);
  color: var(--accent-light);
  padding: 7px 18px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.cta-inner h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.cta-inner p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 30px;
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.faq-section {
  padding: 70px 0;
  background: var(--bg);
}
.faq-grid {
  margin-top: 10px;
}
.faq-item {
  background: #fff;
  border-radius: 14px;
  border: 1px solid var(--border);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(212, 168, 83, 0.45);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: transparent;
  border: none;
  padding: 18px 20px;
  cursor: pointer;
  font-size: 0.96rem;
  font-weight: 700;
  text-align: left;
  color: var(--text);
  transition: var(--transition);
}
.faq-question:hover {
  color: var(--primary);
}
.faq-question i {
  color: var(--accent);
  transition: transform 0.35s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-question i {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer-inner p {
  padding: 0 20px 20px;
  color: var(--text-light);
  line-height: 1.75;
  font-size: 0.92rem;
  margin: 0;
}
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 60px 0 26px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 44px;
  margin-bottom: 36px;
}
.footer-brand .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-brand .brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), #e8b85c);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  box-shadow: 0 4px 14px rgba(212, 168, 83, 0.25);
}
.footer-brand .brand-text {
  font-size: 1.18rem;
  font-weight: 800;
  color: #fff;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.75;
  margin: 0;
  max-width: 340px;
}
.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 16px;
}
.footer-col a {
  display: block;
  color: #94a3b8;
  margin-bottom: 10px;
  font-size: 0.9rem;
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--accent-light);
  padding-left: 4px;
}
.footer-info p {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.9rem;
  margin-bottom: 10px;
}
.footer-info i {
  color: var(--accent);
  width: 18px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(148, 163, 184, 0.15);
  padding-top: 22px;
  text-align: center;
  color: #64748b;
  font-size: 0.85rem;
}
.footer-bottom .copyright {
  margin: 0;
}
@media (max-width: 1024px) {
  .search-field {
    display: none;
  }
  .nav-links {
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 18px 20px;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
    border-radius: 0 0 16px 16px;
    display: none;
    gap: 4px;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-link {
    padding: 12px 18px;
    border-radius: 12px;
  }
  .menu-toggle {
    display: block;
  }
  .cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .article-hero {
    padding: 68px 0 54px;
  }
  .hero-title {
    font-size: 1.7rem;
  }
  .hero-desc {
    font-size: 0.96rem;
  }
  .article-main {
    padding: 40px 0 36px;
  }
  .article-body {
    padding: 22px;
  }
  .related-section,
  .category-section,
  .faq-section {
    padding: 52px 0;
  }
  .cat-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .cta-section {
    padding: 60px 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-brand p {
    max-width: 100%;
  }
  .brand-text {
    font-size: 1.08rem;
  }
}
@media (max-width: 520px) {
  .nav-actions .btn-sm {
    display: none;
  }
  .brand-text {
    max-width: 130px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .breadcrumb .current {
    max-width: 150px;
  }
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
  .cta-actions .btn {
    width: 100%;
    max-width: 280px;
  }
  .share-label {
    width: 100%;
  }
  .share-icons {
    width: 100%;
    justify-content: flex-start;
  }
  .section-head h2 {
    font-size: 1.45rem;
  }
  .faq-question {
    font-size: 0.9rem;
    padding: 16px;
  }
  .faq-answer-inner p {
    padding: 0 16px 16px;
  }
  .grid-x.grid-margin-x > .cell {
    margin-bottom: 16px;
  }
  .related-section .grid-x.grid-margin-x > .cell:last-child,
  .faq-section .grid-x.grid-margin-x > .cell:last-child {
    margin-bottom: 0;
  }
}

/* roulang page: category3 */
:root {
        --primary: #1a56db;
        --primary-dark: #0f3b9e;
        --primary-light: #e8f0fe;
        --accent: #f59e0b;
        --accent-soft: #fef3c7;
        --bg: #f8fafc;
        --bg-white: #ffffff;
        --bg-dark: #0f172a;
        --text: #1e293b;
        --text-light: #64748b;
        --border: #e2e8f0;
        --radius-lg: 20px;
        --radius-md: 14px;
        --radius-sm: 8px;
        --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
        --shadow: 0 4px 20px rgba(0,0,0,0.08);
        --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
        --spacing: 96px;
        --transition: all 0.3s ease;
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
        font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
        background: var(--bg);
        color: var(--text);
        line-height: 1.7;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
    }
    a { text-decoration: none; color: inherit; transition: var(--transition); }
    img { max-width: 100%; display: block; }
    button, input, select, textarea { font-family: inherit; font-size: inherit; outline: none; }
    ul, ol { list-style: none; }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }

    .site-header {
        background: var(--bg-white);
        border-bottom: 1px solid var(--border);
        position: sticky;
        top: 0;
        z-index: 1000;
        box-shadow: 0 1px 8px rgba(0,0,0,0.04);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
        gap: 20px;
    }
    .brand {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .brand-icon {
        width: 38px;
        height: 38px;
        background: linear-gradient(135deg, var(--primary), #6366f1);
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 16px;
        box-shadow: 0 4px 12px rgba(26,86,219,0.3);
    }
    .brand-text {
        font-size: 20px;
        font-weight: 700;
        color: var(--text);
        letter-spacing: 0.5px;
        white-space: nowrap;
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 6px;
        margin-left: 12px;
    }
    .nav-link {
        padding: 8px 14px;
        border-radius: 8px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-light);
        transition: var(--transition);
    }
    .nav-link:hover {
        color: var(--primary);
        background: var(--primary-light);
    }
    .nav-link.active {
        color: var(--primary);
        background: var(--primary-light);
        font-weight: 600;
    }
    .header-tools {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }
    .search-box {
        position: relative;
        display: flex;
        align-items: center;
    }
    .search-box input {
        width: 200px;
        height: 38px;
        border: 1px solid var(--border);
        border-radius: 19px;
        padding: 0 38px 0 16px;
        font-size: 13px;
        background: var(--bg);
        outline: none;
        transition: var(--transition);
    }
    .search-box input:focus {
        border-color: var(--primary);
        background: #fff;
        box-shadow: 0 0 0 3px rgba(26,86,219,0.12);
        width: 240px;
    }
    .search-box i {
        position: absolute;
        right: 14px;
        color: var(--text-light);
        font-size: 13px;
        pointer-events: none;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 22px;
        border-radius: 10px;
        font-size: 14px;
        font-weight: 600;
        transition: var(--transition);
        cursor: pointer;
        border: none;
    }
    .btn-primary {
        background: linear-gradient(135deg, var(--primary), #6366f1);
        color: #fff;
        box-shadow: 0 4px 14px rgba(26,86,219,0.3);
    }
    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(26,86,219,0.4);
        color: #fff;
    }
    .btn-outline {
        background: transparent;
        border: 1px solid var(--border);
        color: var(--text);
    }
    .btn-outline:hover {
        border-color: var(--primary);
        color: var(--primary);
        background: var(--primary-light);
    }
    .hamburger {
        display: none;
        background: none;
        border: none;
        font-size: 22px;
        color: var(--text);
        cursor: pointer;
        line-height: 1;
    }

    .page-banner {
        position: relative;
        padding: 104px 0 72px;
        background: linear-gradient(135deg, #0f172a 0%, #1e293b 55%, #1a56db 130%);
        color: #fff;
        overflow: hidden;
    }
    .page-banner::before {
        content: '';
        position: absolute;
        top: 0; left: 0; right: 0; bottom: 0;
        background: url('/assets/images/backpic/back-2.png') no-repeat center/cover;
        opacity: 0.22;
    }
    .page-banner .container { position: relative; z-index: 2; }
    .banner-tag {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 6px 16px;
        background: rgba(255,255,255,0.12);
        border: 1px solid rgba(255,255,255,0.2);
        border-radius: 30px;
        font-size: 13px;
        font-weight: 500;
        color: #e2e8f0;
        backdrop-filter: blur(6px);
        margin-bottom: 26px;
    }
    .banner-title {
        font-size: 42px;
        font-weight: 800;
        line-height: 1.3;
        letter-spacing: 1px;
        margin-bottom: 18px;
    }
    .banner-desc {
        font-size: 16px;
        color: rgba(255,255,255,0.85);
        max-width: 660px;
        margin-bottom: 32px;
        line-height: 1.8;
    }
    .banner-actions {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }
    .banner-actions .btn-primary {
        background: #fff;
        color: var(--primary);
        box-shadow: 0 4px 18px rgba(0,0,0,0.18);
    }
    .banner-actions .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 28px rgba(0,0,0,0.25);
        color: var(--primary);
    }
    .banner-actions .btn-outline-light {
        background: rgba(255,255,255,0.1);
        border: 1px solid rgba(255,255,255,0.4);
        color: #fff;
    }
    .banner-actions .btn-outline-light:hover {
        background: rgba(255,255,255,0.2);
        transform: translateY(-2px);
        color: #fff;
    }

    .breadcrumb {
        padding: 20px 0;
        font-size: 13px;
        color: var(--text-light);
        border-bottom: 1px solid var(--border);
        background: #fff;
    }
    .breadcrumb a:hover { color: var(--primary); }
    .breadcrumb .sep { margin: 0 8px; color: #cbd5e1; }
    .breadcrumb .current { color: var(--primary); font-weight: 500; }

    .section { padding: var(--spacing) 0; }
    .section-alt {
        background: var(--bg-white);
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
    }
    .section-head {
        text-align: center;
        max-width: 720px;
        margin: 0 auto 56px;
    }
    .section-tag {
        display: inline-block;
        padding: 4px 16px;
        background: var(--primary-light);
        color: var(--primary);
        font-size: 13px;
        font-weight: 600;
        border-radius: 30px;
        margin-bottom: 14px;
    }
    .section-title {
        font-size: 32px;
        font-weight: 800;
        color: var(--text);
        line-height: 1.4;
        letter-spacing: 0.5px;
    }
    .section-sub {
        font-size: 15px;
        color: var(--text-light);
        margin-top: 14px;
        line-height: 1.8;
    }

    .service-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }
    .service-card {
        background: var(--bg-white);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 36px 28px;
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }
    .service-card::before {
        content: '';
        position: absolute;
        top: 0; left: 0; right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--primary), #6366f1);
        opacity: 0;
        transition: var(--transition);
    }
    .service-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-lg);
        border-color: rgba(26,86,219,0.15);
    }
    .service-card:hover::before { opacity: 1; }
    .service-icon {
        width: 56px;
        height: 56px;
        border-radius: 14px;
        background: var(--primary-light);
        color: var(--primary);
        font-size: 22px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 20px;
        transition: var(--transition);
    }
    .service-card:hover .service-icon {
        background: linear-gradient(135deg, var(--primary), #6366f1);
        color: #fff;
        box-shadow: 0 6px 18px rgba(26,86,219,0.3);
    }
    .service-card h3 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 12px;
    }
    .service-card p {
        font-size: 14px;
        color: var(--text-light);
        line-height: 1.8;
    }

    .feature-block {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
    }
    .feature-img {
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-lg);
        position: relative;
    }
    .feature-img img {
        width: 100%;
        height: 400px;
        object-fit: cover;
    }
    .feature-img .img-badge {
        position: absolute;
        bottom: 22px;
        left: 22px;
        background: rgba(255,255,255,0.95);
        padding: 12px 22px;
        border-radius: 12px;
        font-size: 14px;
        font-weight: 600;
        color: var(--primary);
        box-shadow: var(--shadow);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .feature-content h2 {
        font-size: 30px;
        font-weight: 800;
        line-height: 1.4;
        margin-bottom: 18px;
        color: var(--text);
    }
    .feature-content p {
        font-size: 15px;
        color: var(--text-light);
        line-height: 1.9;
        margin-bottom: 22px;
    }
    .feature-list {
        display: grid;
        gap: 12px;
        margin-bottom: 30px;
    }
    .feature-list li {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        font-size: 14px;
        color: var(--text);
        line-height: 1.7;
    }
    .feature-list li i {
        color: var(--primary);
        font-size: 15px;
        margin-top: 4px;
        flex-shrink: 0;
    }

    .help-layout {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 56px;
        align-items: center;
    }
    .help-list {
        display: grid;
        gap: 20px;
    }
    .help-item {
        display: flex;
        gap: 18px;
        background: var(--bg-white);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 24px;
        transition: var(--transition);
    }
    .help-item:hover {
        border-color: var(--primary);
        box-shadow: var(--shadow);
        transform: translateX(4px);
    }
    .help-num {
        flex-shrink: 0;
        width: 40px;
        height: 40px;
        border-radius: 10px;
        background: linear-gradient(135deg, var(--primary), #6366f1);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 16px;
        box-shadow: 0 4px 12px rgba(26,86,219,0.25);
    }
    .help-content h4 {
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 6px;
        color: var(--text);
    }
    .help-content p {
        font-size: 14px;
        color: var(--text-light);
        line-height: 1.7;
    }
    .help-img {
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-lg);
    }
    .help-img img {
        width: 100%;
        height: 480px;
        object-fit: cover;
    }

    .stats-section {
        background: var(--bg-dark);
        padding: 72px 0;
        position: relative;
        overflow: hidden;
    }
    .stats-section::before {
        content: '';
        position: absolute;
        top: 0; left: 0; right: 0; bottom: 0;
        background: url('/assets/images/backpic/back-3.png') no-repeat center/cover;
        opacity: 0.15;
    }
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
        position: relative;
        z-index: 2;
    }
    .stat-item {
        text-align: center;
        padding: 28px 20px;
        background: rgba(255,255,255,0.06);
        border: 1px solid rgba(255,255,255,0.1);
        border-radius: var(--radius-lg);
        backdrop-filter: blur(8px);
        transition: var(--transition);
    }
    .stat-item:hover {
        background: rgba(255,255,255,0.1);
        transform: translateY(-3px);
    }
    .stat-num {
        font-size: 44px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 4px;
        line-height: 1.3;
    }
    .stat-label {
        font-size: 14px;
        color: rgba(255,255,255,0.75);
    }

    .faq-list {
        max-width: 860px;
        margin: 0 auto;
    }
    .faq-item {
        background: var(--bg-white);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        margin-bottom: 16px;
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item:hover {
        border-color: rgba(26,86,219,0.3);
        box-shadow: var(--shadow-sm);
    }
    .faq-item.open {
        border-color: var(--primary);
        box-shadow: var(--shadow);
    }
    .faq-question {
        padding: 22px 24px;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        color: var(--text);
        transition: var(--transition);
    }
    .faq-question:hover { color: var(--primary); }
    .faq-question i {
        color: var(--text-light);
        transition: var(--transition);
        flex-shrink: 0;
        font-size: 14px;
    }
    .faq-item.open .faq-question i {
        transform: rotate(180deg);
        color: var(--primary);
    }
    .faq-answer {
        padding: 0 24px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        font-size: 14px;
        color: var(--text-light);
        line-height: 1.8;
        border-top: 0 solid transparent;
    }
    .faq-item.open .faq-answer {
        padding: 0 24px 22px;
        max-height: 400px;
        border-top: 1px solid var(--border);
        margin-top: 2px;
    }

    .cta-section {
        background: linear-gradient(135deg, var(--primary) 0%, #6366f1 100%);
        padding: 84px 0;
        text-align: center;
        color: #fff;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        top: -60%;
        right: -15%;
        width: 520px;
        height: 520px;
        background: rgba(255,255,255,0.08);
        border-radius: 50%;
    }
    .cta-section::after {
        content: '';
        position: absolute;
        bottom: -70%;
        left: -10%;
        width: 420px;
        height: 420px;
        background: rgba(255,255,255,0.06);
        border-radius: 50%;
    }
    .cta-section .container { position: relative; z-index: 2; }
    .cta-section h2 {
        font-size: 36px;
        font-weight: 800;
        margin-bottom: 16px;
        letter-spacing: 0.5px;
    }
    .cta-section p {
        font-size: 16px;
        color: rgba(255,255,255,0.9);
        max-width: 580px;
        margin: 0 auto 34px;
        line-height: 1.8;
    }
    .cta-section .btn {
        background: #fff;
        color: var(--primary);
        box-shadow: 0 4px 18px rgba(0,0,0,0.15);
        font-size: 16px;
        padding: 14px 34px;
    }
    .cta-section .btn:hover {
        transform: translateY(-2px) scale(1.03);
        box-shadow: 0 8px 28px rgba(0,0,0,0.22);
    }

    .site-footer {
        background: var(--bg-dark);
        color: #94a3b8;
        padding: 72px 0 30px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 48px;
        margin-bottom: 48px;
    }
    .footer-brand .brand {
        margin-bottom: 14px;
    }
    .footer-brand .brand-text {
        color: #fff;
    }
    .footer-brand p {
        font-size: 14px;
        line-height: 1.8;
        color: #94a3b8;
    }
    .footer-col h4 {
        font-size: 16px;
        color: #fff;
        font-weight: 700;
        margin-bottom: 20px;
    }
    .footer-col > a {
        display: block;
        padding: 5px 0;
        font-size: 14px;
        color: #94a3b8;
        transition: var(--transition);
    }
    .footer-col > a:hover {
        color: #fff;
        padding-left: 6px;
    }
    .footer-info p {
        font-size: 13px;
        padding: 4px 0;
        display: flex;
        align-items: center;
        gap: 10px;
        color: #94a3b8;
    }
    .footer-info i {
        color: var(--primary);
        width: 18px;
        text-align: center;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.08);
        padding-top: 26px;
        text-align: center;
        font-size: 13px;
        color: #64748b;
    }

    @media (max-width: 1024px) {
        .main-nav { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 24px; box-shadow: 0 12px 30px rgba(0,0,0,0.08); border-bottom: 1px solid var(--border); gap: 4px; }
        .main-nav.open { display: flex; }
        .nav-link { padding: 12px 14px; width: 100%; border-radius: 8px; }
        .hamburger { display: block; }
        .search-box input { width: 150px; }
        .service-grid { grid-template-columns: repeat(2, 1fr); }
        .stats-grid { grid-template-columns: repeat(2, 1fr); }
        .feature-block { gap: 36px; }
        .help-layout { gap: 36px; }
    }
    @media (max-width: 768px) {
        :root { --spacing: 64px; }
        .header-inner { height: 64px; }
        .brand-text { font-size: 17px; }
        .search-box { display: none; }
        .banner-title { font-size: 30px; }
        .banner-desc { font-size: 14px; }
        .service-grid { grid-template-columns: 1fr; }
        .help-layout { grid-template-columns: 1fr; }
        .help-img img { height: 300px; }
        .feature-block { grid-template-columns: 1fr; }
        .feature-img img { height: 280px; }
        .section-title { font-size: 26px; }
        .section-head { margin-bottom: 36px; }
        .cta-section h2 { font-size: 26px; }
        .stat-num { font-size: 34px; }
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        .footer-brand { grid-column: 1 / -1; }
    }
    @media (max-width: 520px) {
        .container { padding: 0 16px; }
        .header-inner { gap: 10px; }
        .btn-header { display: none; }
        .banner-title { font-size: 24px; }
        .banner-actions .btn { padding: 8px 16px; font-size: 13px; }
        .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
        .stat-item { padding: 20px 14px; }
        .stat-num { font-size: 28px; }
        .footer-grid { grid-template-columns: 1fr; }
        .feature-img img { height: 220px; }
        .help-img img { height: 240px; }
        .faq-question { font-size: 15px; padding: 18px 16px; }
        .faq-answer { font-size: 13px; }
        .cta-section { padding: 60px 0; }
        .cta-section h2 { font-size: 22px; }
    }