/* roulang page: index */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FD6;
            --primary-light: #EAF1FF;
            --accent: #F59E0B;
            --accent-light: #FEF3C7;
            --success: #10B981;
            --success-light: #D1FAE5;
            --danger: #EF4444;
            --danger-light: #FEE2E2;
            --text-strong: #1F2937;
            --text-body: #374151;
            --text-muted: #64748B;
            --text-faint: #94A3B8;
            --border: #E2E8F0;
            --border-light: #EEF2F6;
            --bg-page: #F7FAFF;
            --bg-card: #FFFFFF;
            --bg-faq: #F8FAFD;
            --footer-bg: #0F172A;
            --footer-text: #E5E7EB;
            --footer-link: #93C5FD;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-btn: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
            --shadow-hover: 0 12px 24px rgba(15, 23, 42, .10);
            --shadow-btn: 0 2px 6px rgba(47, 107, 255, .25);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --transition: all .25s ease;
            --max-width: 1200px;
            --section-gap-desktop: 80px;
            --section-gap-mobile: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition);
        }
        button:disabled {
            opacity: .5;
            cursor: not-allowed;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

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

        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
        }
        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }
        .section-tight {
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: .04em;
            margin-bottom: 14px;
            text-transform: uppercase;
        }
        .section-label .label-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .section-title {
            font-size: clamp(26px, 3.5vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 700px;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head.center {
            text-align: center;
        }
        .section-head.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
            min-height: 44px;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(47, 107, 255, .35);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-btn);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, .6);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .15);
            color: #fff;
            transform: translateY(-1px);
            border-color: #fff;
        }
        .btn-ghost {
            background: var(--bg-card);
            color: var(--text-strong);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }
        .btn-ghost:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }
        .btn-sm {
            padding: 7px 14px;
            font-size: 13px;
            min-height: 36px;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 13px 28px;
            font-size: 16px;
            min-height: 52px;
            border-radius: 12px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            letter-spacing: .02em;
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-amber {
            background: var(--accent-light);
            color: #92400E;
        }
        .badge-green {
            background: var(--success-light);
            color: #065F46;
        }
        .badge-red {
            background: var(--danger-light);
            color: #991B1B;
        }
        .badge-gray {
            background: #F1F5F9;
            color: var(--text-muted);
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 28px;
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .card-flat {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
        }
        .card-flat:hover {
            border-color: #CBD5E1;
            box-shadow: var(--shadow-card);
        }

        /* Header */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(15, 23, 42, .04);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding-top: 16px;
            padding-bottom: 14px;
            flex-wrap: wrap;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: var(--text-strong);
            font-weight: 800;
            font-size: 22px;
            letter-spacing: -0.01em;
            line-height: 1.2;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .header-date {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .icon-nav-wrapper {
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
            padding-bottom: 12px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: #CBD5E1 transparent;
        }
        .icon-nav-wrapper::-webkit-scrollbar {
            height: 4px;
        }
        .icon-nav-wrapper::-webkit-scrollbar-thumb {
            background: #CBD5E1;
            border-radius: 4px;
        }
        .icon-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            min-width: max-content;
        }
        .icon-nav a {
            display: flex;
            align-items: center;
            gap: 7px;
            padding: 10px 16px;
            border-radius: 12px;
            font-weight: 500;
            font-size: 14px;
            color: var(--text-body);
            text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
            min-height: 44px;
        }
        .icon-nav a i {
            font-size: 18px;
            width: 22px;
            text-align: center;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .icon-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .icon-nav a:hover i {
            color: var(--primary);
        }
        .icon-nav a.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }
        .icon-nav a.active i {
            color: var(--primary);
        }
        .icon-nav a.nav-home {
            font-weight: 700;
            color: var(--primary);
        }
        .icon-nav a.nav-home i {
            color: var(--primary);
        }

        /* Hero */
        .hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 80px 0;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, .88) 0%, rgba(30, 58, 95, .75) 50%, rgba(47, 107, 255, .55) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            max-width: 700px;
            color: #fff;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, .25);
            color: #fff;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
        }
        .hero h1 {
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: #fff;
        }
        .hero p {
            font-size: 17px;
            line-height: 1.85;
            color: rgba(255, 255, 255, .88);
            max-width: 620px;
            margin-bottom: 28px;
        }
        .hero-cta {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .hero-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, .9);
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat .stat-num {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            font-variant-numeric: tabular-nums;
        }
        .hero-stat .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
        }

        /* Service Section */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .service-card-lg {
            grid-column: span 2;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 28px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .service-card-lg:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .service-card-lg .service-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            flex-shrink: 0;
        }
        .service-card-lg h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .service-card-lg p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 14px;
        }
        .service-card-sm {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 22px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .service-card-sm:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #CBD5E1;
        }
        .service-card-sm .service-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }
        .service-card-sm h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 5px;
            line-height: 1.4;
        }
        .service-card-sm p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.65;
        }
        .service-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .service-link:hover {
            color: var(--primary-hover);
            gap: 10px;
        }

        /* Stats Section */
        .stats-section {
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-page);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: #CBD5E1;
            box-shadow: var(--shadow-card);
        }
        .stat-card .stat-value {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-card .stat-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 4px;
        }
        .stat-card .stat-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Case / Deep Content */
        .case-section {
            background: var(--bg-card);
        }
        .case-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: start;
        }
        .case-text {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-body);
        }
        .case-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .case-text p+p {
            margin-top: 12px;
        }
        .case-text .case-highlight {
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            padding: 14px 18px;
            border-radius: 0 8px 8px 0;
            margin: 16px 0;
            font-size: 15px;
            color: var(--text-strong);
        }
        .case-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }
        .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .case-table-wrap {
            margin-top: 20px;
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
        }
        .case-table {
            width: 100%;
            min-width: 600px;
            border-collapse: collapse;
            background: var(--bg-card);
            font-size: 14px;
        }
        .case-table th {
            background: var(--primary-light);
            color: var(--text-strong);
            font-weight: 600;
            padding: 10px 16px;
            text-align: left;
            border-bottom: 2px solid var(--border);
            white-space: nowrap;
        }
        .case-table td {
            padding: 9px 16px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-body);
            font-variant-numeric: tabular-nums;
        }
        .case-table tbody tr:nth-child(even) {
            background: #F8FAFD;
        }
        .case-table tbody tr:hover {
            background: var(--primary-light);
        }

        /* Steps Section */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .step-number {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            margin-bottom: 14px;
        }
        .step-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* News Section */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-1px);
            border-color: #CBD5E1;
        }
        .news-date {
            flex-shrink: 0;
            min-width: 72px;
            text-align: center;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
            font-size: 13px;
            padding: 8px 10px;
            border-radius: 10px;
            line-height: 1.3;
        }
        .news-date .d-day {
            font-size: 20px;
            display: block;
            font-weight: 800;
        }
        .news-date .d-month {
            font-size: 11px;
            opacity: .8;
        }
        .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-body h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
            line-height: 1.45;
        }
        .news-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .news-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .news-link:hover {
            color: var(--primary-hover);
        }

        /* Brand Intro */
        .brand-intro {
            background: var(--primary-light);
            border: 1px solid #D6E4FF;
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            display: flex;
            gap: 24px;
            align-items: flex-start;
            flex-wrap: wrap;
        }
        .brand-intro .brand-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            flex-shrink: 0;
        }
        .brand-intro h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .brand-intro p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.9;
        }
        .brand-intro .brand-text {
            flex: 1;
            min-width: 280px;
        }

        /* Topics */
        .topics-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-body);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
        }
        .topic-tag:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .topic-tag i {
            font-size: 13px;
            color: var(--accent);
        }

        /* KPI / Latest Updates */
        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .kpi-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        .kpi-item:hover {
            border-color: #CBD5E1;
            box-shadow: var(--shadow-card);
        }
        .kpi-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }
        .kpi-info .kpi-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 2px;
        }
        .kpi-info .kpi-value {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-strong);
        }

        /* Calendar */
        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 12px;
        }
        .cal-cell {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 14px 12px;
            text-align: center;
            transition: var(--transition);
        }
        .cal-cell:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .cal-cell .cal-day {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }
        .cal-cell .cal-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-strong);
        }

        /* Reviews */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .review-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .review-stars {
            color: var(--accent);
            font-size: 13px;
            margin-bottom: 10px;
        }
        .review-text {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .review-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }
        .review-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-strong);
        }
        .review-role {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-strong);
            text-align: left;
            min-height: 44px;
            background: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: transform .3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 20px 20px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.85;
            background: var(--bg-faq);
            border-left: 3px solid var(--primary);
            margin-left: 20px;
            border-radius: 0 0 0 8px;
        }

        /* Contact / Subscribe */
        .contact-section {
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .contact-info h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .contact-info p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 18px;
        }
        .contact-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-body);
        }
        .contact-list li i {
            color: var(--primary);
            width: 18px;
            text-align: center;
        }
        .subscription-form {
            background: var(--bg-page);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }
        .subscription-form h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 18px;
            line-height: 1.4;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid #CBD5E1;
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--text-strong);
            background: var(--bg-card);
            transition: var(--transition);
            min-height: 44px;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, .15);
            outline: none;
        }
        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }
        .form-hint {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 12px;
            line-height: 1.6;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        /* Footer */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 12px;
        }
        .footer-brand .logo:hover {
            color: var(--footer-link);
        }
        .footer-brand p {
            font-size: 13px;
            color: rgba(229, 231, 235, .7);
            line-height: 1.8;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: .03em;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            color: var(--footer-link);
            font-size: 13px;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: rgba(229, 231, 235, .65);
        }
        .footer-bottom a {
            color: var(--footer-link);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-links a {
            font-size: 12px;
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        /* Responsive */
        @media (max-width: 1280px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        @media (max-width: 1024px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-card-lg {
                grid-column: span 2;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-layout {
                grid-template-columns: 1fr;
            }
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .calendar-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }
            .hero {
                min-height: 480px;
                padding: 48px 0;
            }
            .hero h1 {
                font-size: clamp(28px, 7vw, 40px);
            }
            .hero p {
                font-size: 15px;
            }
            .hero-cta {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-cta .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                gap: 16px;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .service-card-lg {
                grid-column: span 1;
                flex-direction: column;
                gap: 14px;
            }
            .case-table {
                min-width: 500px;
            }
            .news-item {
                flex-direction: column;
                gap: 10px;
                padding: 16px;
            }
            .news-date {
                min-width: auto;
                display: inline-flex;
                gap: 4px;
                padding: 4px 10px;
            }
            .brand-intro {
                padding: 22px 20px;
                flex-direction: column;
                gap: 14px;
            }
            .kpi-grid {
                grid-template-columns: 1fr;
            }
            .calendar-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .review-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .header-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .header-actions {
                width: 100%;
                justify-content: space-between;
            }
            .icon-nav a {
                padding: 8px 12px;
                font-size: 13px;
                gap: 5px;
            }
            .icon-nav a i {
                font-size: 16px;
                width: 18px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 22px;
            }
            .section-head {
                margin-bottom: 26px;
            }
            .hero {
                min-height: 420px;
                padding: 36px 0;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero p {
                font-size: 14px;
                line-height: 1.7;
            }
            .hero-badge {
                font-size: 11px;
                padding: 4px 10px;
            }
            .card {
                padding: 20px 16px;
            }
            .news-item {
                padding: 14px;
            }
            .faq-question {
                padding: 13px 14px;
                font-size: 14px;
            }
            .faq-answer-inner {
                margin-left: 14px;
                padding: 0 14px 16px;
                font-size: 13px;
            }
            .btn-lg {
                padding: 11px 20px;
                font-size: 14px;
                min-height: 46px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .calendar-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FD6;
            --primary-light: #EAF1FF;
            --accent: #F59E0B;
            --accent-light: #FEF3C7;
            --success: #10B981;
            --success-light: #D1FAE5;
            --danger: #EF4444;
            --danger-light: #FEE2E2;
            --text-strong: #1F2937;
            --text-body: #374151;
            --text-muted: #64748B;
            --text-faint: #94A3B8;
            --border: #E2E8F0;
            --border-light: #EEF2F6;
            --bg-page: #F7FAFF;
            --bg-card: #FFFFFF;
            --bg-faq: #F8FAFD;
            --footer-bg: #0F172A;
            --footer-text: #E5E7EB;
            --footer-link: #93C5FD;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-btn: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
            --shadow-hover: 0 12px 24px rgba(15, 23, 42, .10);
            --shadow-btn: 0 2px 6px rgba(47, 107, 255, .25);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --transition: all .25s ease;
            --max-width: 1200px;
            --section-gap-desktop: 80px;
            --section-gap-mobile: 48px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover { color: var(--primary-hover); }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }
        button { cursor: pointer; border: none; background: none; transition: var(--transition); }
        button:disabled { opacity: .5; cursor: not-allowed; }
        button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section { padding-top: var(--section-gap-desktop); padding-bottom: var(--section-gap-desktop); }
        .section-sm { padding-top: 56px; padding-bottom: 56px; }
        .section-tight { padding-top: 40px; padding-bottom: 40px; }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: .04em;
            margin-bottom: 14px;
            text-transform: uppercase;
        }
        .section-label .label-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }
        .section-title {
            font-size: clamp(26px, 3.5vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 700px;
        }
        .section-head { margin-bottom: 40px; }
        .section-head.center { text-align: center; }
        .section-head.center .section-subtitle { margin-left: auto; margin-right: auto; }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
            min-height: 44px;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(47, 107, 255, .35);
        }
        .btn-primary:active { transform: translateY(0); box-shadow: var(--shadow-btn); }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover { background: var(--primary-light); color: var(--primary-hover); transform: translateY(-1px); }
        .btn-sm { padding: 8px 16px; font-size: 14px; min-height: 36px; }
        .btn-lg { padding: 14px 28px; font-size: 16px; min-height: 52px; }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-accent { background: var(--accent-light); color: #92400E; }
        .badge-success { background: var(--success-light); color: #065F46; }
        .badge-danger { background: var(--danger-light); color: #991B1B; }
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .card-body { padding: 24px; }
        .card-header {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .card-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.4;
        }
        .card-text { font-size: 15px; line-height: 1.8; color: var(--text-body); }
        .card-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .number { font-variant-numeric: tabular-nums; }
        .table-responsive {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            background: var(--bg-card);
            min-width: 720px;
        }
        .data-table thead {
            background: var(--bg-faq);
            border-bottom: 2px solid var(--border);
        }
        .data-table thead th {
            font-weight: 700;
            color: var(--text-strong);
            padding: 14px 16px;
            text-align: left;
            white-space: nowrap;
            font-size: 13px;
            letter-spacing: .02em;
        }
        .data-table tbody tr {
            border-bottom: 1px solid var(--border-light);
            transition: background .2s ease;
        }
        .data-table tbody tr:nth-child(even) { background: #FAFBFF; }
        .data-table tbody tr:hover { background: var(--primary-light); }
        .data-table tbody td {
            padding: 14px 16px;
            color: var(--text-body);
            white-space: nowrap;
        }
        .data-table tbody td:first-child {
            font-weight: 600;
            color: var(--text-strong);
        }
        .data-table .win-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 32px;
            height: 32px;
            background: var(--accent-light);
            color: #92400E;
            border-radius: 50%;
            font-weight: 700;
            font-size: 14px;
            margin: 0 3px;
        }
        .data-table .special-number {
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
        }
        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid #CBD5E1;
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-body);
            background: #fff;
            transition: var(--transition);
            min-height: 44px;
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, .15);
        }
        .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            display: block;
            margin-bottom: 6px;
        }
        .form-group { margin-bottom: 16px; }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: end;
            padding: 20px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            margin-bottom: 32px;
        }
        .filter-bar .form-group { margin-bottom: 0; flex: 1 1 160px; min-width: 140px; }
        .filter-bar .btn { flex-shrink: 0; }
        .hero-banner {
            position: relative;
            padding: 72px 0 56px;
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 55%, #1E3A8A 100%);
            color: #fff;
            overflow: hidden;
        }
        .hero-banner::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 45%;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: .12;
            border-radius: 0 0 0 40px;
        }
        .hero-banner::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15,23,42,.55) 0%, rgba(15,23,42,.35) 100%);
            pointer-events: none;
        }
        .hero-banner .container { position: relative; z-index: 2; }
        .hero-banner h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
            color: #fff;
        }
        .hero-banner .hero-sub {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(229, 231, 235, .9);
            max-width: 640px;
            margin-bottom: 24px;
        }
        .hero-banner .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: rgba(226, 232, 240, .85);
        }
        .hero-banner .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 32px;
            max-width: 520px;
        }
        .hero-stat-item {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .15);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            text-align: center;
            backdrop-filter: blur(6px);
        }
        .hero-stat-item .stat-num {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }
        .hero-stat-item .stat-label {
            font-size: 13px;
            color: rgba(226, 232, 240, .8);
            margin-top: 4px;
        }
        .highlight-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
        }
        .highlight-card:hover { box-shadow: var(--shadow-hover); }
        .highlight-card .highlight-header {
            padding: 20px 24px;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .highlight-card .highlight-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
        }
        .draw-number-display {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px;
            justify-content: center;
            align-items: center;
        }
        .draw-ball {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(47, 107, 255, .3);
            font-variant-numeric: tabular-nums;
        }
        .draw-ball.accent {
            background: var(--accent);
            box-shadow: 0 4px 12px rgba(245, 158, 11, .3);
        }
        .info-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
            align-items: start;
        }
        .info-grid .card-text { margin-bottom: 16px; }
        .update-timeline {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .update-timeline li {
            position: relative;
            padding-left: 24px;
            padding-bottom: 18px;
            border-left: 2px solid var(--border);
            margin-left: 8px;
        }
        .update-timeline li::before {
            content: "";
            position: absolute;
            left: -7px;
            top: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid #fff;
            box-shadow: 0 0 0 2px var(--primary-light);
        }
        .update-timeline li:last-child { border-left-color: transparent; padding-bottom: 0; }
        .update-timeline .time-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
            display: block;
            margin-bottom: 4px;
        }
        .update-timeline .time-desc { font-size: 15px; color: var(--text-body); line-height: 1.7; }
        .faq-list { display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.active {
            box-shadow: var(--shadow-card);
            border-color: var(--primary);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-strong);
            text-align: left;
            background: transparent;
            min-height: 44px;
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: transform .3s ease;
        }
        .faq-item.active .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            padding: 0 20px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
            background: var(--bg-faq);
            border-left: 3px solid var(--primary);
            padding: 14px 16px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }
        .chart-placeholder {
            background: var(--bg-faq);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            color: var(--text-muted);
            min-height: 240px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
        }
        .chart-placeholder i { font-size: 40px; color: var(--primary); opacity: .5; }
        .chart-placeholder p { font-size: 14px; max-width: 400px; }
        .disclaimer-box {
            background: var(--accent-light);
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 16px 20px;
            font-size: 14px;
            color: #92400E;
            line-height: 1.7;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .disclaimer-box i { flex-shrink: 0; margin-top: 4px; color: var(--accent); }

        /* Header/Nav */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(15,23,42,.04);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 14px 0;
            flex-wrap: wrap;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-strong);
            text-decoration: none;
            letter-spacing: -0.01em;
        }
        .logo:hover { color: var(--primary); }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .header-date {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .icon-nav-wrapper {
            border-top: 1px solid var(--border-light);
            background: var(--bg-card);
        }
        .icon-nav {
            display: flex;
            gap: 4px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            padding: 6px 0;
            scrollbar-width: none;
        }
        .icon-nav::-webkit-scrollbar { display: none; }
        .icon-nav a {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 10px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            border-radius: var(--radius-md);
            transition: var(--transition);
            white-space: nowrap;
            min-width: 72px;
            text-align: center;
        }
        .icon-nav a i { font-size: 18px; }
        .icon-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .icon-nav a.active {
            background: var(--primary-light);
            color: var(--primary);
        }

        /* Footer */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding-top: 56px;
            padding-bottom: 28px;
            font-size: 14px;
            line-height: 1.7;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand p {
            color: #94A3B8;
            font-size: 14px;
            line-height: 1.8;
            margin-top: 12px;
            max-width: 360px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 18px;
        }
        .footer-brand .logo-icon {
            background: var(--primary);
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #E5E7EB;
            margin-bottom: 14px;
            letter-spacing: .02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul a {
            color: var(--footer-link);
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: #94A3B8;
        }
        .footer-beian {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            color: #94A3B8;
        }
        .footer-links {
            display: flex;
            gap: 16px;
        }
        .footer-links a {
            color: var(--footer-link);
            font-size: 13px;
        }
        .footer-links a:hover { color: #fff; text-decoration: underline; }

        /* Responsive */
        @media (max-width: 1024px) {
            .info-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .hero-stats { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 768px) {
            .section { padding-top: var(--section-gap-mobile); padding-bottom: var(--section-gap-mobile); }
            .header-top { flex-direction: column; align-items: flex-start; }
            .header-actions { width: 100%; justify-content: space-between; }
            .filter-bar { flex-direction: column; align-items: stretch; }
            .filter-bar .form-group { flex: 1 1 auto; }
            .filter-bar .btn { width: 100%; }
            .form-row { grid-template-columns: 1fr; }
            .hero-banner { padding: 48px 0 40px; }
            .hero-stats { grid-template-columns: 1fr; gap: 8px; }
            .data-table { font-size: 13px; }
            .data-table thead th, .data-table tbody td { padding: 10px 12px; }
            .draw-ball { width: 44px; height: 44px; font-size: 17px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
            .icon-nav a { min-width: 64px; padding: 8px 10px; font-size: 12px; }
            .icon-nav a i { font-size: 16px; }
        }
        @media (max-width: 520px) {
            .container { padding-left: 20px; padding-right: 20px; }
            .hero-banner h1 { font-size: clamp(26px, 8vw, 36px); }
            .btn { width: 100%; }
            .btn-sm { width: auto; }
            .card-body { padding: 18px; }
            .draw-number-display { gap: 8px; padding: 16px; }
            .draw-ball { width: 38px; height: 38px; font-size: 15px; }
            .faq-question { font-size: 14px; padding: 12px 16px; }
            .section-title { font-size: 24px; }
        }

/* roulang page: category3 */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FD6;
            --primary-light: #EAF1FF;
            --accent: #F59E0B;
            --accent-light: #FEF3C7;
            --success: #10B981;
            --success-light: #D1FAE5;
            --danger: #EF4444;
            --danger-light: #FEE2E2;
            --text-strong: #1F2937;
            --text-body: #374151;
            --text-muted: #64748B;
            --text-faint: #94A3B8;
            --border: #E2E8F0;
            --border-light: #EEF2F6;
            --bg-page: #F7FAFF;
            --bg-card: #FFFFFF;
            --bg-faq: #F8FAFD;
            --footer-bg: #0F172A;
            --footer-text: #E5E7EB;
            --footer-link: #93C5FD;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-btn: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
            --shadow-hover: 0 12px 24px rgba(15, 23, 42, .10);
            --shadow-btn: 0 2px 6px rgba(47, 107, 255, .25);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --transition: all .25s ease;
            --max-width: 1200px;
            --section-gap-desktop: 80px;
            --section-gap-mobile: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition);
        }
        button:disabled {
            opacity: .5;
            cursor: not-allowed;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

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

        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
        }
        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }
        .section-tight {
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: .04em;
            margin-bottom: 14px;
        }
        .section-label .label-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .section-title {
            font-size: clamp(26px, 3.5vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 700px;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head.center {
            text-align: center;
        }
        .section-head.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
            min-height: 44px;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(47, 107, 255, .35);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-btn);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            min-height: 38px;
        }
        .btn-lg {
            padding: 12px 28px;
            font-size: 16px;
            min-height: 48px;
        }

        /* Header */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(15, 23, 42, .04);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-strong);
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-md);
            font-size: 18px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .header-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .icon-nav-wrapper {
            border-top: 1px solid var(--border-light);
            background: var(--bg-card);
        }
        .icon-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }
        .icon-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            padding: 10px 16px;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            white-space: nowrap;
            min-height: 44px;
            transition: var(--transition);
        }
        .icon-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .icon-nav a.active {
            background: var(--primary-light);
            color: var(--primary);
        }
        .icon-nav a i {
            font-size: 18px;
        }

        /* Hero */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, #0F172A 0%, #1E3A5F 60%, #1E4FD6 100%);
            color: #fff;
            padding: 70px 0 90px;
            overflow: hidden;
            margin-bottom: 0;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            opacity: .22;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(245, 158, 11, .18);
            color: #FCD34D;
            border: 1px solid rgba(245, 158, 11, .35);
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .page-hero h1 {
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: #fff;
            max-width: 780px;
        }
        .page-hero p {
            font-size: 18px;
            line-height: 1.85;
            color: #CBD5E1;
            max-width: 680px;
            margin-bottom: 28px;
        }
        .page-hero .hero-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .page-hero .hero-actions .btn-secondary {
            color: #93C5FD;
            border-color: #93C5FD;
        }
        .page-hero .hero-actions .btn-secondary:hover {
            background: rgba(255, 255, 255, .1);
            color: #fff;
        }

        /* Metric Cards */
        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .metric-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 16px;
        }
        .metric-icon.amber {
            background: var(--accent-light);
            color: var(--accent);
        }
        .metric-icon.green {
            background: var(--success-light);
            color: var(--success);
        }
        .metric-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.2;
            letter-spacing: -0.02em;
            font-variant-numeric: tabular-nums;
        }
        .metric-number .unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-muted);
            margin-left: 4px;
        }
        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 8px;
        }

        /* Trend data list */
        .trend-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .trend-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            transition: var(--transition);
        }
        .trend-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-1px);
        }
        .trend-item-info {
            flex: 1;
            min-width: 180px;
        }
        .trend-item-info h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 4px;
        }
        .trend-item-info p {
            font-size: 14px;
            color: var(--text-muted);
        }
        .trend-balls {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .trend-ball {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            font-weight: 700;
            font-size: 15px;
            color: #fff;
            background: var(--primary);
            font-variant-numeric: tabular-nums;
        }
        .trend-ball.hot {
            background: var(--danger);
        }
        .trend-ball.warm {
            background: var(--accent);
        }
        .trend-ball.cool {
            background: var(--success);
        }
        .trend-direction {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }
        .trend-direction.up {
            color: var(--danger);
            background: var(--danger-light);
        }
        .trend-direction.down {
            color: var(--success);
            background: var(--success-light);
        }
        .trend-direction.flat {
            color: var(--text-muted);
            background: var(--border-light);
        }
        .trend-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        /* Deep analysis */
        .analysis-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .analysis-copy h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.35;
            margin-bottom: 20px;
        }
        .analysis-copy p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-body);
            margin-bottom: 16px;
        }
        .analysis-image {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }
        .analysis-image img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-lg);
        }
        .analysis-image figcaption {
            padding: 12px 16px;
            font-size: 13px;
            color: var(--text-muted);
            background: var(--bg-card);
        }

        /* Dimension cards */
        .dimension-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .dimension-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .dimension-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .dimension-card i {
            font-size: 32px;
            color: var(--primary);
            margin-bottom: 12px;
            display: block;
        }
        .dimension-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 8px;
        }
        .dimension-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Process steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        .process-step {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            position: relative;
            counter-increment: step;
        }
        .process-step::before {
            content: counter(step);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .process-step h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* Review cards */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .review-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .review-card .review-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            margin-bottom: 16px;
        }
        .review-card h4 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
        }
        .review-card p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
            margin-bottom: 12px;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-strong);
            text-align: left;
            width: 100%;
            min-height: 44px;
            line-height: 1.5;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            display: none;
            padding: 0 20px 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
            border-left: 3px solid var(--primary);
            background: var(--bg-faq);
            margin: 0 16px 16px;
            border-radius: 0 8px 8px 0;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1E3A5F 0%, #2F6BFF 100%);
            padding: 70px 0;
            color: #fff;
            border-radius: 0;
        }
        .cta-section .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }
        .cta-section h2 {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .cta-section p {
            font-size: 16px;
            line-height: 1.8;
            color: #CBD5E1;
            max-width: 600px;
        }
        .cta-section .btn-primary {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
        }
        .cta-section .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
        }

        /* Footer */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding-top: 60px;
            padding-bottom: 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .logo:hover {
            color: var(--footer-link);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #94A3B8;
            max-width: 380px;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: .02em;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--footer-link);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 13px;
            color: #94A3B8;
        }
        .footer-beian {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .footer-links a {
            color: var(--footer-link);
            font-size: 13px;
        }
        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .metric-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .dimension-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .analysis-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .analysis-copy {
                order: 2;
            }
            .analysis-image {
                order: 1;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap-desktop: 48px;
                --section-gap-mobile: 32px;
            }
            .header-actions {
                display: none;
            }
            .header-top {
                padding: 12px 0;
            }
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            .page-hero {
                padding: 48px 0 60px;
            }
            .page-hero h1 {
                font-size: clamp(28px, 4.5vw, 40px);
            }
            .page-hero p {
                font-size: 16px;
            }
            .metric-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-card {
                padding: 18px;
            }
            .metric-number {
                font-size: 26px;
            }
            .dimension-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .review-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .trend-item {
                padding: 16px 18px;
                gap: 12px;
            }
            .trend-balls {
                gap: 6px;
            }
            .trend-ball {
                width: 34px;
                height: 34px;
                font-size: 13px;
            }
            .cta-section .container {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .metric-grid {
                grid-template-columns: 1fr;
            }
            .dimension-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .page-hero .hero-actions {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .page-hero .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .trend-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .trend-item-info {
                min-width: auto;
            }
            .trend-actions {
                width: 100%;
                justify-content: flex-start;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-answer {
                margin: 0 12px 12px;
                padding: 0 14px 14px;
                font-size: 14px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FD6;
            --primary-light: #EAF1FF;
            --accent: #F59E0B;
            --accent-light: #FEF3C7;
            --success: #10B981;
            --success-light: #D1FAE5;
            --danger: #EF4444;
            --danger-light: #FEE2E2;
            --text-strong: #1F2937;
            --text-body: #374151;
            --text-muted: #64748B;
            --text-faint: #94A3B8;
            --border: #E2E8F0;
            --border-light: #EEF2F6;
            --bg-page: #F7FAFF;
            --bg-card: #FFFFFF;
            --bg-faq: #F8FAFD;
            --bg-soft: #F1F5F9;
            --footer-bg: #0F172A;
            --footer-text: #E5E7EB;
            --footer-link: #93C5FD;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-btn: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
            --shadow-hover: 0 12px 24px rgba(15, 23, 42, .10);
            --shadow-btn: 0 2px 6px rgba(47, 107, 255, .25);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --transition: all .25s ease;
            --max-width: 1200px;
            --section-gap-desktop: 80px;
            --section-gap-mobile: 48px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

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

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

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition);
        }

        button:disabled {
            opacity: .5;
            cursor: not-allowed;
        }

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

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

        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
        }

        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-tight {
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: .04em;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-label .label-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .section-title {
            font-size: clamp(26px, 3.5vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 700px;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head.center {
            text-align: center;
        }

        .section-head.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
            min-height: 44px;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(47, 107, 255, .35);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-btn);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            transform: translateY(-1px);
        }

        .btn-sm {
            padding: 7px 14px;
            font-size: 13px;
            min-height: 36px;
        }

        /* Header & Navigation */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(15, 23, 42, .04);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-strong);
            text-decoration: none;
            letter-spacing: -0.01em;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .header-date {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-soft);
            padding: 7px 14px;
            border-radius: var(--radius-pill);
        }

        .icon-nav-wrapper {
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            padding: 8px 0;
        }

        .icon-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }

        .icon-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 14px;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            text-decoration: none;
            min-height: 44px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .icon-nav a i {
            font-size: 16px;
            width: 20px;
            text-align: center;
        }

        .icon-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .icon-nav a.active {
            background: var(--primary);
            color: #fff;
        }

        .icon-nav a.active:hover {
            background: var(--primary-hover);
            color: #fff;
        }

        /* Hero */
        .hero-rules {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 100px 0 80px;
            overflow: hidden;
        }

        .hero-rules::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, .88) 0%, rgba(30, 58, 95, .78) 45%, rgba(47, 107, 255, .55) 100%);
            z-index: 1;
        }

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

        .hero-rules-content {
            max-width: 760px;
            color: #fff;
        }

        .hero-rules .section-label {
            background: rgba(255, 255, 255, .16);
            color: #fff;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .hero-rules .section-label .label-dot {
            background: var(--accent);
        }

        .hero-rules h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.25;
            margin: 16px 0 20px;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .hero-rules-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 28px;
            max-width: 640px;
        }

        .hero-rules-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .hero-rules .btn-secondary {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            border-color: rgba(255, 255, 255, .5);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .hero-rules .btn-secondary:hover {
            background: rgba(255, 255, 255, .24);
            color: #fff;
            border-color: #fff;
        }

        /* Anchor section nav */
        .anchor-nav-wrap {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 99;
            box-shadow: 0 2px 8px rgba(15, 23, 42, .04);
        }

        .anchor-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            padding: 10px 0;
            scrollbar-width: thin;
        }

        .anchor-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 10px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            text-decoration: none;
            white-space: nowrap;
            min-height: 38px;
            transition: var(--transition);
        }

        .anchor-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .anchor-nav a i {
            font-size: 13px;
        }

        /* Article body */
        .rules-article-body {
            max-width: 860px;
            margin: 0 auto;
        }

        .article-prose {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-body);
        }

        .article-prose p {
            margin-bottom: 18px;
        }

        .article-prose h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-strong);
            margin: 36px 0 16px;
            line-height: 1.3;
            letter-spacing: -0.01em;
            scroll-margin-top: 140px;
        }

        .article-prose h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-strong);
            margin: 28px 0 12px;
            scroll-margin-top: 140px;
        }

        .article-prose strong {
            color: var(--text-strong);
            font-weight: 700;
        }

        /* Info box / Tip box */
        .info-box {
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 20px 24px;
            margin: 24px 0;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
        }

        .info-box.warning {
            background: var(--accent-light);
            border-left-color: var(--accent);
        }

        .info-box.danger {
            background: var(--danger-light);
            border-left-color: var(--danger);
        }

        .info-box.success {
            background: var(--success-light);
            border-left-color: var(--success);
        }

        .info-box .info-box-title {
            font-weight: 700;
            font-size: 15px;
            color: var(--text-strong);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* Image block */
        .article-image-block {
            margin: 32px 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            background: var(--bg-card);
        }

        .article-image-block img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: 0;
        }

        .article-image-caption {
            padding: 12px 18px;
            font-size: 13px;
            color: var(--text-muted);
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
        }

        /* Table */
        .rules-table-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin: 28px 0;
            box-shadow: var(--shadow-card);
        }

        .rules-table-header {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-light);
            font-weight: 700;
            font-size: 17px;
            color: var(--text-strong);
            background: var(--bg-faq);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .rules-table-scroll {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .rules-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 640px;
        }

        .rules-table thead th {
            background: var(--primary-light);
            color: var(--text-strong);
            font-weight: 700;
            text-align: left;
            padding: 12px 18px;
            border-bottom: 1px solid var(--border);
            font-size: 13px;
            white-space: nowrap;
        }

        .rules-table tbody td {
            padding: 12px 18px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-body);
            line-height: 1.6;
        }

        .rules-table tbody tr:nth-child(even) {
            background: var(--bg-faq);
        }

        .rules-table tbody tr:hover {
            background: var(--primary-light);
        }

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

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            letter-spacing: .02em;
        }

        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .badge-amber {
            background: var(--accent-light);
            color: #92400E;
        }

        .badge-green {
            background: var(--success-light);
            color: #065F46;
        }

        /* Detail card */
        .detail-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            margin: 28px 0;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .detail-card:hover {
            box-shadow: var(--shadow-hover);
        }

        .detail-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
        }

        .detail-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
        }

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

        .detail-card.accent-border {
            border-top: 4px solid var(--accent);
        }

        .detail-card.primary-border {
            border-top: 4px solid var(--primary);
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 22px;
            font-weight: 700;
            font-size: 15px;
            color: var(--text-strong);
            cursor: pointer;
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            min-height: 44px;
            line-height: 1.5;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            transition: transform .3s ease;
        }

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

        .faq-answer {
            display: none;
            padding: 0 22px 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
            background: var(--bg-faq);
            border-left: 3px solid var(--primary);
            margin-left: 0;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA */
        .cta-subscribe {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cta-subscribe-info h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-strong);
            margin-bottom: 12px;
            line-height: 1.3;
        }

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

        .subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .form-field {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        .form-field label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
        }

        .form-field input,
        .form-field select {
            padding: 10px 14px;
            border: 1px solid #CBD5E1;
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-strong);
            background: #fff;
            transition: var(--transition);
            min-height: 44px;
        }

        .form-field input:focus,
        .form-field select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, .15);
            outline: none;
        }

        .form-hint {
            font-size: 12px;
            color: var(--text-faint);
            line-height: 1.5;
            margin-top: 4px;
        }

        /* Footer */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: 60px 0 30px;
            margin-top: var(--section-gap-desktop);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .logo:hover {
            color: var(--footer-link);
        }

        .footer-brand .logo-icon {
            background: rgba(255, 255, 255, .12);
            color: var(--footer-link);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #94A3B8;
            margin-bottom: 0;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: .02em;
        }

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

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

        .footer-col ul li a {
            color: var(--footer-link);
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: #94A3B8;
        }

        .footer-beian {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--footer-link);
            font-size: 13px;
            text-decoration: none;
        }

        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .section {
                padding-top: 64px;
                padding-bottom: 64px;
            }

            .cta-subscribe {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 32px 28px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }

            .hero-rules {
                padding: 70px 0 56px;
            }

            .hero-rules h1 {
                font-size: clamp(28px, 5vw, 40px);
            }

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

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

            .icon-nav a {
                padding: 8px 12px;
                font-size: 13px;
                min-height: 40px;
            }

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

            .article-prose h2 {
                font-size: 22px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .anchor-nav a {
                font-size: 12px;
                padding: 6px 10px;
                min-height: 36px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .header-actions {
                width: 100%;
                justify-content: space-between;
            }

            .header-date {
                font-size: 12px;
                padding: 5px 10px;
            }

            .hero-rules {
                padding: 56px 0 44px;
            }

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

            .hero-rules-subtitle {
                font-size: 15px;
            }

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

            .cta-subscribe {
                padding: 24px 18px;
            }

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

            .info-box {
                padding: 16px 18px;
                font-size: 14px;
            }

            .rules-table-header {
                padding: 14px 16px;
                font-size: 15px;
            }

            .rules-table thead th,
            .rules-table tbody td {
                padding: 10px 12px;
                font-size: 13px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FD6;
            --primary-light: #EAF1FF;
            --accent: #F59E0B;
            --accent-light: #FEF3C7;
            --success: #10B981;
            --success-light: #D1FAE5;
            --danger: #EF4444;
            --danger-light: #FEE2E2;
            --text-strong: #1F2937;
            --text-body: #374151;
            --text-muted: #64748B;
            --text-faint: #94A3B8;
            --border: #E2E8F0;
            --border-light: #EEF2F6;
            --bg-page: #F7FAFF;
            --bg-card: #FFFFFF;
            --bg-faq: #F8FAFD;
            --footer-bg: #0F172A;
            --footer-text: #E5E7EB;
            --footer-link: #93C5FD;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-btn: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
            --shadow-hover: 0 12px 24px rgba(15, 23, 42, .10);
            --shadow-btn: 0 2px 6px rgba(47, 107, 255, .25);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --transition: all .25s ease;
            --max-width: 1200px;
            --section-gap-desktop: 80px;
            --section-gap-mobile: 48px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

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

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

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition);
        }

        button:disabled {
            opacity: .5;
            cursor: not-allowed;
        }

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

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

        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
        }

        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-tight {
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: .04em;
            margin-bottom: 14px;
        }

        .section-label .label-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .section-title {
            font-size: clamp(26px, 3.5vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 700px;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head.center {
            text-align: center;
        }

        .section-head.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
            min-height: 44px;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(47, 107, 255, .35);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-btn);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            transform: translateY(-1px);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            min-height: 38px;
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
            min-height: 52px;
        }

        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--primary);
            background: none;
            padding: 6px 0;
            min-height: 36px;
        }

        .btn-text:hover {
            color: var(--primary-hover);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .btn-text i {
            font-size: 12px;
            transition: transform .2s ease;
        }

        .btn-text:hover i {
            transform: translateX(3px);
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: .02em;
        }

        .badge-accent {
            background: var(--accent-light);
            color: #92400E;
        }

        .badge-success {
            background: var(--success-light);
            color: #065F46;
        }

        .badge-danger {
            background: var(--danger-light);
            color: #991B1B;
        }

        .badge-muted {
            background: #F1F5F9;
            color: var(--text-muted);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(15, 23, 42, .04);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            padding-bottom: 14px;
            gap: 16px;
            flex-wrap: wrap;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: -0.01em;
        }

        .logo:hover {
            color: var(--text-strong);
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            flex-shrink: 0;
            box-shadow: var(--shadow-btn);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .header-date {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
        }

        .icon-nav-wrapper {
            border-top: 1px solid var(--border-light);
            background: #fff;
        }

        .icon-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            padding-top: 8px;
            padding-bottom: 8px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }

        .icon-nav::-webkit-scrollbar {
            height: 4px;
        }

        .icon-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 999px;
        }

        .icon-nav a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 10px 14px;
            border-radius: 12px;
            white-space: nowrap;
            min-height: 44px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .icon-nav a i {
            font-size: 16px;
            width: 20px;
            text-align: center;
            color: var(--text-faint);
            transition: var(--transition);
        }

        .icon-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .icon-nav a:hover i {
            color: var(--primary);
        }

        .icon-nav a.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        .icon-nav a.active i {
            color: var(--primary);
        }

        .icon-nav a.nav-cta {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            margin-left: auto;
        }

        .icon-nav a.nav-cta i {
            color: #fff;
        }

        .icon-nav a.nav-cta:hover {
            background: var(--primary-hover);
            color: #fff;
        }

        /* ============ HERO ============ */
        .hero-news {
            position: relative;
            background: linear-gradient(135deg, #EAF1FF 0%, #F7FAFF 55%, #FFF8EB 100%);
            padding-top: 56px;
            padding-bottom: 56px;
            overflow: hidden;
        }

        .hero-news::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: rgba(47, 107, 255, .06);
            pointer-events: none;
        }

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

        .hero-news-grid {
            display: grid;
            grid-template-columns: 1.15fr .85fr;
            gap: 48px;
            align-items: center;
        }

        .hero-news h1 {
            font-size: clamp(30px, 4.5vw, 50px);
            font-weight: 800;
            line-height: 1.22;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin: 0 0 18px 0;
        }

        .hero-news .hero-subtitle {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 0 28px 0;
        }

        .hero-news-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hero-news .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 18px 40px rgba(15, 23, 42, .12);
            border: 1px solid rgba(255, 255, 255, .6);
        }

        .hero-news .hero-image-wrap img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            display: block;
            transition: transform .5s ease;
        }

        .hero-news .hero-image-wrap:hover img {
            transform: scale(1.02);
        }

        .hero-news .hero-img-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(15, 23, 42, .78);
            color: #fff;
            font-size: 12px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            backdrop-filter: blur(4px);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .hero-news .hero-img-badge i {
            color: var(--accent);
        }

        /* ============ TOPIC TAGS ============ */
        .topic-tag-section {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            padding-top: 20px;
            padding-bottom: 20px;
        }

        .topic-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .topic-tags-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            margin-right: 4px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
            background: var(--bg-page);
            border: 1px solid var(--border);
            padding: 7px 14px;
            border-radius: var(--radius-pill);
            transition: var(--transition);
            min-height: 34px;
            cursor: pointer;
        }

        .topic-tag:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary-light);
        }

        .topic-tag.active-tag {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* ============ NEWS LIST ============ */
        .news-list-section {
            background: var(--bg-page);
        }

        .news-list-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .news-list-item {
            display: grid;
            grid-template-columns: 110px 1fr;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            align-items: start;
        }

        .news-list-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }

        .news-date-block {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: var(--primary-light);
            border-radius: var(--radius-md);
            padding: 10px 8px;
            min-height: 76px;
            text-align: center;
        }

        .news-date-day {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            font-variant-numeric: tabular-nums;
        }

        .news-date-month {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
            margin-top: 2px;
            letter-spacing: .06em;
        }

        .news-content h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-strong);
            margin: 0 0 8px 0;
        }

        .news-content h3 a {
            color: var(--text-strong);
        }

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

        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-faint);
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

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

        .news-summary {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
            margin: 0 0 14px 0;
        }

        /* ============ UPDATE INFO STRIP ============ */
        .update-strip-section {
            background: #fff;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .update-strip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .update-strip-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .update-strip-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-card);
        }

        .update-strip-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .update-strip-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-strong);
            margin: 0 0 4px 0;
        }

        .update-strip-item p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ============ EDITOR PICKS / DEEP CONTENT ============ */
        .editor-section {
            background: var(--bg-page);
        }

        .editor-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

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

        .editor-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .editor-card-image {
            width: 100%;
            height: 240px;
            overflow: hidden;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .editor-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform .45s ease;
        }

        .editor-card:hover .editor-card-image img {
            transform: scale(1.03);
        }

        .editor-card-body {
            padding: 24px 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .editor-card-body h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-strong);
            margin: 0 0 10px 0;
        }

        .editor-card-body p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-muted);
            margin: 0 0 16px 0;
            flex: 1;
        }

        .editor-card-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }

        .editor-card-foot .read-time {
            font-size: 13px;
            color: var(--text-faint);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

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

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

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

        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 18px 20px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            background: none;
            cursor: pointer;
            min-height: 52px;
            transition: var(--transition);
        }

        .faq-question:hover {
            background: var(--bg-faq);
            color: var(--primary);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
            background: var(--bg-faq);
            border-left: 3px solid var(--primary);
        }

        .faq-answer p {
            margin: 0;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-muted);
        }

        /* ============ CTA / SUBSCRIBE ============ */
        .cta-section {
            background: linear-gradient(135deg, #EAF1FF 0%, #F7FAFF 45%, #FFF8EB 100%);
            border-top: 1px solid var(--border-light);
        }

        .cta-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }

        .cta-card h2 {
            font-size: clamp(22px, 2.5vw, 30px);
            font-weight: 800;
            color: var(--text-strong);
            margin: 0 0 10px 0;
            line-height: 1.3;
        }

        .cta-card p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
            margin: 0 0 20px 0;
        }

        .cta-form {
            background: var(--bg-faq);
            border-radius: var(--radius-md);
            padding: 22px;
            border: 1px solid var(--border-light);
        }

        .cta-form-group {
            margin-bottom: 14px;
        }

        .cta-form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 5px;
        }

        .cta-form-group input,
        .cta-form-group select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid #CBD5E1;
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--text-body);
            background: #fff;
            transition: var(--transition);
            min-height: 44px;
        }

        .cta-form-group input:focus,
        .cta-form-group select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, .15);
            outline: none;
        }

        .cta-form-note {
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 10px;
            line-height: 1.6;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding-top: 60px;
            padding-bottom: 28px;
        }

        .site-footer a {
            color: var(--footer-link);
        }

        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(229, 231, 235, .12);
        }

        .footer-brand .logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 14px;
        }

        .footer-brand .logo:hover {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #94A3B8;
            margin: 0;
            max-width: 360px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px 0;
            letter-spacing: .03em;
        }

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

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

        .footer-col ul li a {
            font-size: 14px;
            color: #94A3B8;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 24px;
            font-size: 13px;
            color: #94A3B8;
        }

        .footer-beian {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-links {
            display: flex;
            gap: 18px;
            align-items: center;
        }

        .footer-links a {
            font-size: 13px;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero-news-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-news .hero-image-wrap img {
                height: 280px;
            }

            .update-strip-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .editor-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .cta-card {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 28px 24px;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }

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

            .header-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding-top: 12px;
                padding-bottom: 12px;
            }

            .header-actions {
                width: 100%;
                justify-content: space-between;
            }

            .icon-nav a {
                padding: 10px 11px;
                font-size: 13px;
                gap: 5px;
                min-height: 42px;
            }

            .icon-nav a i {
                font-size: 15px;
                width: 18px;
            }

            .hero-news {
                padding-top: 36px;
                padding-bottom: 36px;
            }

            .hero-news h1 {
                font-size: clamp(26px, 6vw, 34px);
            }

            .hero-news .hero-image-wrap img {
                height: 220px;
            }

            .news-list-item {
                grid-template-columns: 1fr;
                gap: 14px;
                padding: 18px;
            }

            .news-date-block {
                flex-direction: row;
                gap: 8px;
                min-height: auto;
                padding: 10px 14px;
                justify-content: flex-start;
            }

            .news-date-day {
                font-size: 20px;
            }

            .news-date-month {
                margin-top: 0;
                font-size: 13px;
            }

            .update-strip-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .update-strip-item {
                padding: 16px;
            }

            .editor-card-image {
                height: 200px;
            }

            .editor-card-body {
                padding: 20px;
            }

            .cta-card {
                padding: 22px 18px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .footer-beian {
                flex-direction: column;
                gap: 4px;
            }
        }

        @media (max-width: 640px) {
            .hero-news-actions {
                flex-direction: column;
                width: 100%;
            }

            .hero-news-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .topic-tags {
                gap: 8px;
            }

            .topic-tag {
                font-size: 12px;
                padding: 6px 11px;
                min-height: 32px;
            }

            .news-content h3 {
                font-size: 17px;
            }

            .news-summary {
                font-size: 14px;
            }

            .btn-sm {
                padding: 7px 14px;
                font-size: 13px;
                min-height: 36px;
            }

            .faq-question {
                font-size: 15px;
                padding: 15px 16px;
            }

            .cta-form {
                padding: 16px;
            }
        }

        @media (max-width: 420px) {
            .icon-nav a {
                padding: 9px 9px;
                font-size: 12px;
                gap: 4px;
            }

            .icon-nav a i {
                font-size: 14px;
                width: 16px;
            }

            .logo {
                font-size: 18px;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
                border-radius: 10px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FD6;
            --primary-light: #EAF1FF;
            --accent: #F59E0B;
            --accent-light: #FEF3C7;
            --success: #10B981;
            --success-light: #D1FAE5;
            --danger: #EF4444;
            --danger-light: #FEE2E2;
            --text-strong: #1F2937;
            --text-body: #374151;
            --text-muted: #64748B;
            --text-faint: #94A3B8;
            --border: #E2E8F0;
            --border-light: #EEF2F6;
            --bg-page: #F7FAFF;
            --bg-card: #FFFFFF;
            --bg-faq: #F8FAFD;
            --footer-bg: #0F172A;
            --footer-text: #E5E7EB;
            --footer-link: #93C5FD;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-btn: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
            --shadow-hover: 0 12px 24px rgba(15, 23, 42, .10);
            --shadow-btn: 0 2px 6px rgba(47, 107, 255, .25);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --transition: all .25s ease;
            --max-width: 1200px;
            --section-gap-desktop: 80px;
            --section-gap-mobile: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        main {
            flex: 1;
        }

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

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

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

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition);
        }

        button:disabled {
            opacity: .5;
            cursor: not-allowed;
        }

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

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

        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
        }

        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-tight {
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: .04em;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-label .label-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .section-title {
            font-size: clamp(26px, 3.5vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 700px;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head.center {
            text-align: center;
        }

        .section-head.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
            min-height: 44px;
            line-height: 1.4;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(47, 107, 255, .35);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-btn);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            transform: translateY(-1px);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 2px 6px rgba(245, 158, 11, .3);
        }

        .btn-accent:hover {
            background: #D97706;
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-sm {
            font-size: 13px;
            padding: 6px 14px;
            min-height: 36px;
        }

        .btn-link {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0;
            min-height: auto;
            border-bottom: 2px solid transparent;
            border-radius: 0;
        }

        .btn-link:hover {
            color: var(--primary-hover);
            border-bottom-color: var(--primary-hover);
        }

        /* ========== Header ========== */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(15, 23, 42, .04);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 16px;
            padding-bottom: 12px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: -0.01em;
        }

        .logo:hover {
            color: var(--text-strong);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            font-size: 18px;
            flex-shrink: 0;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .header-date {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .icon-nav-wrapper {
            border-top: 1px solid var(--border-light);
            background: var(--bg-card);
        }

        .icon-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            padding-top: 8px;
            padding-bottom: 8px;
            scrollbar-width: thin;
            -webkit-overflow-scrolling: touch;
        }

        .icon-nav::-webkit-scrollbar {
            height: 4px;
        }

        .icon-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }

        .icon-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 10px 16px;
            border-radius: 12px;
            white-space: nowrap;
            flex-shrink: 0;
            min-height: 44px;
            transition: var(--transition);
        }

        .icon-nav a i {
            font-size: 18px;
            width: 20px;
            text-align: center;
        }

        .icon-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .icon-nav a.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
            position: relative;
        }

        .icon-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            padding-top: 64px;
            padding-bottom: 64px;
            background: var(--bg-card);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, #F7FAFF 0%, #FFFFFF 50%, #F7FAFF 100%);
            z-index: 0;
        }

        .hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content .section-label {
            margin-bottom: 16px;
        }

        .hero h1 {
            font-size: clamp(30px, 4vw, 48px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }

        .hero h1 .highlight {
            color: var(--primary);
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 560px;
            margin-bottom: 28px;
        }

        .hero-cta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .hero-kpi {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
        }

        .hero-kpi-item {
            display: flex;
            flex-direction: column;
        }

        .hero-kpi-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .hero-kpi-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        .hero-visual {
            position: relative;
        }

        .hero-visual img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
        }

        .hero-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .95);
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            color: var(--success);
            box-shadow: var(--shadow-card);
        }

        /* ========== Tool Grid ========== */
        .tool-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 16px;
        }

        .tool-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
            cursor: pointer;
        }

        .tool-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }

        .tool-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 12px;
            font-size: 22px;
            flex-shrink: 0;
        }

        .tool-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            margin-top: 4px;
        }

        .tool-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== Calculator ========== */
        .calc-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 28px;
        }

        .calc-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .calc-form label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .calc-form .form-group {
            margin-bottom: 16px;
        }

        .calc-form input[type="number"],
        .calc-form select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-strong);
            background: #fff;
            transition: var(--transition);
            appearance: none;
            -webkit-appearance: none;
            min-height: 44px;
        }

        .calc-form input[type="number"]:focus,
        .calc-form select:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(47, 107, 255, .15);
        }

        .calc-form input[type="number"]::placeholder {
            color: var(--text-faint);
        }

        .calc-result {
            background: var(--bg-faq);
            border-radius: var(--radius-md);
            padding: 20px;
            border-left: 4px solid var(--primary);
        }

        .calc-result h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .result-row {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
        }

        .result-row:last-child {
            border-bottom: none;
        }

        .result-row .result-label {
            color: var(--text-muted);
        }

        .result-row .result-value {
            font-weight: 700;
            color: var(--text-strong);
            font-variant-numeric: tabular-nums;
        }

        .result-row .result-value.accent {
            color: var(--accent);
            font-size: 18px;
        }

        .calc-note {
            margin-top: 16px;
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .calc-note i {
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* ========== Table ========== */
        .table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            background: var(--bg-card);
            -webkit-overflow-scrolling: touch;
        }

        .table-wrapper table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
            font-size: 14px;
        }

        .table-wrapper thead th {
            background: var(--primary-light);
            color: var(--text-strong);
            font-weight: 700;
            text-align: left;
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            white-space: nowrap;
        }

        .table-wrapper tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-body);
        }

        .table-wrapper tbody tr:nth-child(even) {
            background: #F8FAFD;
        }

        .table-wrapper tbody tr:hover {
            background: var(--primary-light);
        }

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

        /* ========== Steps ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            counter-reset: step;
        }

        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            position: relative;
            transition: var(--transition);
            counter-increment: step;
        }

        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-size: 16px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 8px;
        }

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

        /* ========== Deep Content ========== */
        .deep-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            margin-bottom: 20px;
        }

        .deep-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .deep-card p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-body);
            margin-bottom: 14px;
        }

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

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:focus-within {
            box-shadow: 0 0 0 3px rgba(47, 107, 255, .1);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-strong);
            text-align: left;
            gap: 12px;
            min-height: 44px;
            background: var(--bg-card);
            transition: var(--transition);
        }

        .faq-question:hover {
            background: var(--primary-light);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            font-size: 14px;
            flex-shrink: 0;
            transition: transform .3s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            background: var(--bg-faq);
            border-left: 3px solid var(--primary);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 16px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-body);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .05);
        }

        .cta-content {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-content h2 {
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .cta-content p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
            max-width: 500px;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
        }

        .btn-white:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            transform: translateY(-1px);
        }

        .btn-outline-white {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .5);
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, .15);
            color: #fff;
            transform: translateY(-1px);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding-top: 56px;
            padding-bottom: 28px;
            margin-top: 20px;
        }

        .site-footer .logo {
            color: #fff;
            margin-bottom: 12px;
            display: inline-flex;
        }

        .site-footer .logo:hover {
            color: #fff;
        }

        .site-footer .logo-icon {
            background: var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            margin-bottom: 24px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .7);
            max-width: 320px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: .02em;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--footer-link);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
        }

        .footer-beian {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .footer-links {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--footer-link);
            font-size: 13px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual {
                order: 2;
            }
            .hero-content {
                order: 1;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .calc-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .header-actions {
                width: 100%;
                justify-content: space-between;
            }
            .icon-nav a {
                font-size: 13px;
                padding: 8px 12px;
                gap: 6px;
            }
            .icon-nav a i {
                font-size: 16px;
            }
            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }
            .hero {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .hero h1 {
                font-size: clamp(26px, 4.5vw, 36px);
            }
            .hero-kpi {
                gap: 16px;
            }
            .tool-grid {
                grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .cta-section {
                padding: 32px 24px;
            }
            .cta-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .calc-card {
                padding: 20px;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .icon-nav {
                gap: 2px;
            }
            .icon-nav a {
                font-size: 12px;
                padding: 8px 10px;
                gap: 4px;
                min-height: 40px;
            }
            .icon-nav a i {
                font-size: 14px;
                width: 16px;
            }
            .icon-nav a.active::after {
                left: 10px;
                right: 10px;
            }
            .btn {
                font-size: 14px;
                padding: 10px 16px;
                width: 100%;
            }
            .hero-cta {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta .btn {
                width: 100%;
            }
            .hero-kpi {
                flex-direction: column;
                gap: 10px;
            }
            .hero-kpi-item {
                flex-direction: row;
                align-items: baseline;
                gap: 8px;
            }
            .tool-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .tool-card {
                padding: 14px;
            }
            .tool-icon {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }
            .section-title {
                font-size: clamp(22px, 3vw, 30px);
            }
            .calc-card {
                padding: 16px;
            }
            .deep-card {
                padding: 20px 16px;
            }
        }

        @media (min-width: 1280px) {
            .container {
                max-width: 1200px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FD6;
            --primary-light: #EAF1FF;
            --accent: #F59E0B;
            --accent-light: #FEF3C7;
            --success: #10B981;
            --success-light: #D1FAE5;
            --danger: #EF4444;
            --danger-light: #FEE2E2;
            --text-strong: #1F2937;
            --text-body: #374151;
            --text-muted: #64748B;
            --text-faint: #94A3B8;
            --border: #E2E8F0;
            --border-light: #EEF2F6;
            --bg-page: #F7FAFF;
            --bg-card: #FFFFFF;
            --bg-faq: #F8FAFD;
            --footer-bg: #0F172A;
            --footer-text: #E5E7EB;
            --footer-link: #93C5FD;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-btn: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
            --shadow-hover: 0 12px 24px rgba(15, 23, 42, .10);
            --shadow-btn: 0 2px 6px rgba(47, 107, 255, .25);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --transition: all .25s ease;
            --max-width: 1200px;
            --section-gap-desktop: 80px;
            --section-gap-mobile: 48px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition);
        }
        button:disabled {
            opacity: .5;
            cursor: not-allowed;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
        }
        .section-sm {
            padding-top: 56px;
            padding-bottom: 56px;
        }
        .section-tight {
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: .04em;
            margin-bottom: 14px;
            text-transform: uppercase;
        }
        .section-label .label-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }
        .section-title {
            font-size: clamp(26px, 3.5vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 700px;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head.center {
            text-align: center;
        }
        .section-head.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
            min-height: 44px;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(47, 107, 255, .35);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-btn);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            min-height: 38px;
        }
        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
            min-height: 52px;
            border-radius: var(--radius-md);
        }

        /* Header */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(15, 23, 42, .04);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            padding-bottom: 14px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--text-strong);
            letter-spacing: -0.01em;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .header-date {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .icon-nav-wrapper {
            border-top: 1px solid var(--border-light);
            background: var(--bg-card);
        }
        .icon-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            padding: 10px 0;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }
        .icon-nav a {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            padding: 10px 14px;
            border-radius: var(--radius-md);
            white-space: nowrap;
            flex-shrink: 0;
            min-height: 68px;
            justify-content: center;
            transition: var(--transition);
        }
        .icon-nav a i {
            font-size: 22px;
            color: var(--text-faint);
            transition: var(--transition);
        }
        .icon-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .icon-nav a:hover i {
            color: var(--primary);
        }
        .icon-nav a.active {
            background: var(--primary-light);
            color: var(--primary);
        }
        .icon-nav a.active i {
            color: var(--primary);
        }
        .icon-nav a.nav-home {
            flex-direction: row;
            gap: 8px;
        }
        .icon-nav a.nav-home i {
            font-size: 18px;
        }

        /* Hero */
        .hero-faq {
            background: linear-gradient(180deg, #F0F5FF 0%, var(--bg-page) 100%);
            padding: 60px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .hero-faq::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(47, 107, 255, .08) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-faq::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245, 158, 11, .06) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-faq .container {
            position: relative;
            z-index: 1;
        }
        .hero-faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-faq-content h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin: 0 0 18px;
        }
        .hero-faq-content .hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-muted);
            margin-bottom: 28px;
            max-width: 540px;
        }
        .hero-faq-search {
            display: flex;
            gap: 12px;
            max-width: 520px;
            flex-wrap: wrap;
        }
        .hero-faq-search input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border: 1.5px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 15px;
            transition: var(--transition);
            background: var(--bg-card);
            color: var(--text-strong);
        }
        .hero-faq-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, .15);
            outline: none;
        }
        .hero-faq-search input::placeholder {
            color: var(--text-faint);
        }
        .hero-faq-image {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-faq-image img {
            width: 100%;
            max-width: 420px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
            aspect-ratio: 4/3;
            object-fit: cover;
            border: 1px solid var(--border);
        }

        /* Quick categories */
        .quick-cats {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            margin-top: 32px;
        }
        .quick-cat {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 14px;
            text-align: center;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            color: var(--text-body);
        }
        .quick-cat:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            color: var(--primary);
        }
        .quick-cat i {
            font-size: 28px;
            color: var(--primary);
        }
        .quick-cat span {
            font-size: 14px;
            font-weight: 600;
        }

        /* Filter bar */
        .filter-bar {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px 22px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
        }
        .filter-bar-label {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-strong);
            margin-right: 6px;
            white-space: nowrap;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            background: var(--bg-page);
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* FAQ sections */
        .faq-block {
            margin-bottom: 48px;
        }
        .faq-block:last-child {
            margin-bottom: 0;
        }
        .faq-block-header {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 22px;
            padding-bottom: 14px;
            border-bottom: 2px solid var(--primary-light);
        }
        .faq-block-header i {
            font-size: 26px;
            color: var(--primary);
            width: 42px;
            height: 42px;
            background: var(--primary-light);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .faq-block-header h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            margin: 0;
        }
        .faq-block-header .faq-count {
            font-size: 13px;
            color: var(--text-muted);
            background: var(--bg-page);
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            margin-left: auto;
        }

        /* Accordion */
        .accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .accordion-item:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(15, 23, 42, .06);
        }
        .accordion-item.active {
            border-color: var(--primary);
            box-shadow: 0 6px 18px rgba(47, 107, 255, .10);
        }
        .accordion-trigger {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            background: transparent;
            transition: var(--transition);
            min-height: 48px;
        }
        .accordion-trigger:hover {
            color: var(--primary);
        }
        .accordion-trigger .accordion-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .accordion-item.active .accordion-trigger .accordion-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .accordion-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            padding: 0 20px;
        }
        .accordion-item.active .accordion-panel {
            max-height: 600px;
            padding: 0 20px 20px;
        }
        .accordion-panel-inner {
            background: var(--bg-faq);
            border-left: 3px solid var(--primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 16px 18px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-body);
        }

        /* Tips section */
        .tips-section {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 36px 40px;
            display: grid;
            grid-template-columns: 300px 1fr;
            gap: 32px;
            align-items: center;
        }
        .tips-image img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
        }
        .tips-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-strong);
            margin: 0 0 12px;
        }
        .tips-content p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-body);
            margin-bottom: 12px;
        }
        .tips-content .tips-note {
            display: inline-flex;
            align-items: flex-start;
            gap: 8px;
            background: var(--accent-light);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            font-size: 14px;
            color: #92400E;
            font-weight: 500;
        }
        .tips-content .tips-note i {
            color: var(--accent);
            margin-top: 3px;
        }

        /* CTA section */
        .cta-section {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -70px;
            left: -30px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .04);
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.35;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, .82);
            margin-bottom: 28px;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }
        .cta-section .btn-cta {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            box-shadow: 0 4px 16px rgba(0, 0, 0, .2);
        }
        .cta-section .btn-cta:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .25);
        }

        /* Footer */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: 56px 0 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 14px;
        }
        .footer-brand .logo:hover {
            color: var(--footer-link);
        }
        .footer-brand .logo-icon {
            background: rgba(47, 107, 255, .25);
            color: var(--footer-link);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #9CA3AF;
            margin: 0;
            max-width: 360px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: .03em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            color: var(--footer-link);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #9CA3AF;
        }
        .footer-beian {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-links {
            display: flex;
            gap: 16px;
        }
        .footer-links a {
            color: var(--footer-link);
            font-size: 13px;
        }
        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .quick-cats {
                grid-template-columns: repeat(3, 1fr);
            }
            .hero-faq-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-faq-image {
                order: -1;
            }
            .hero-faq-image img {
                max-width: 100%;
                aspect-ratio: 16/9;
            }
            .tips-section {
                grid-template-columns: 1fr;
                padding: 28px 24px;
            }
            .tips-image img {
                aspect-ratio: 16/9;
                max-height: 280px;
                object-fit: cover;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }
            .header-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .header-actions {
                width: 100%;
                justify-content: space-between;
            }
            .icon-nav {
                gap: 0;
            }
            .icon-nav a {
                padding: 8px 10px;
                min-height: 60px;
                font-size: 12px;
            }
            .icon-nav a i {
                font-size: 18px;
            }
            .quick-cats {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .hero-faq {
                padding: 40px 0 36px;
            }
            .hero-faq-content h1 {
                font-size: clamp(26px, 5vw, 36px);
            }
            .hero-faq-search {
                flex-direction: column;
            }
            .hero-faq-search input {
                width: 100%;
            }
            .filter-bar {
                padding: 14px 16px;
                gap: 8px;
            }
            .filter-tag {
                padding: 6px 12px;
                font-size: 13px;
            }
            .faq-block-header {
                flex-wrap: wrap;
                gap: 8px;
            }
            .faq-block-header h2 {
                font-size: 18px;
            }
            .faq-block-header .faq-count {
                margin-left: 0;
            }
            .accordion-trigger {
                font-size: 15px;
                padding: 14px 16px;
            }
            .accordion-panel-inner {
                font-size: 14px;
                padding: 12px 14px;
            }
            .tips-section {
                padding: 22px 18px;
            }
            .cta-section {
                padding: 32px 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .quick-cats {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .quick-cat {
                padding: 14px 10px;
            }
            .quick-cat i {
                font-size: 22px;
            }
            .quick-cat span {
                font-size: 12px;
            }
            .hero-faq-content h1 {
                font-size: 24px;
            }
            .hero-faq-content .hero-desc {
                font-size: 15px;
            }
            .filter-tag {
                font-size: 12px;
                padding: 5px 10px;
            }
            .accordion-trigger {
                font-size: 14px;
                gap: 8px;
            }
            .accordion-trigger .accordion-icon {
                width: 24px;
                height: 24px;
                font-size: 12px;
            }
        }