/* roulang page: index */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1D4ED8;
            --primary-tint: #EFF6FF;
            --primary-tint-strong: #DBEAFE;
            --accent: #0EA5E9;
            --accent-tint: #E0F2FE;
            --bg: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-slate: #F1F5F9;
            --bg-dark: #0F172A;
            --bg-dark-2: #1E293B;
            --text-dark: #0F172A;
            --text-heading: #1E293B;
            --text-body: #475569;
            --text-weak: #64748B;
            --text-light: #94A3B8;
            --text-white: #F8FAFC;
            --border: #E2E8F0;
            --border-light: #E8EDF3;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15,23,42,0.06), 0 4px 16px rgba(15,23,42,0.06);
            --shadow-card-hover: 0 4px 12px rgba(15,23,42,0.1), 0 8px 32px rgba(15,23,42,0.1);
            --shadow-nav: 0 1px 2px rgba(15,23,42,0.04), 0 8px 24px rgba(15,23,42,0.08);
            --shadow-dark: 0 4px 16px rgba(15,23,42,0.2), 0 8px 40px rgba(15,23,42,0.3);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --container-max: 1200px;
            --section-pad: 72px;
            --section-pad-mobile: 48px;
            --card-gap: 22px;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: none;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol,
        li {
            list-style: none;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            padding: 14px 0;
            background: transparent;
            transition: background var(--transition-slow), box-shadow var(--transition-slow);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .header-panel {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-nav);
            padding: 10px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

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

        .header-logo .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .header-logo .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .header-logo .logo-text em {
            font-style: normal;
            color: var(--primary);
        }

        .header-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

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

        .nav-chip {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-heading);
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-chip .nav-icon {
            font-size: 15px;
            line-height: 1;
        }

        .nav-chip:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
        }

        .nav-chip.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            line-height: 1.5;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
        }

        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1.5px solid var(--primary-tint-strong);
        }

        .btn-outline:hover {
            background: var(--primary-tint);
            border-color: var(--primary);
        }

        .btn-light {
            background: #fff;
            color: var(--text-dark);
            box-shadow: 0 1px 4px rgba(15,23,42,0.1);
        }

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

        .btn-lg {
            padding: 13px 28px;
            font-size: 15px;
            border-radius: 12px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }

        .btn .arrow {
            transition: transform var(--transition);
        }
        .btn:hover .arrow {
            transform: translateX(3px);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border-light);
            background: #fff;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: all var(--transition);
        }

        .nav-toggle .bar {
            width: 20px;
            height: 2px;
            background: var(--text-heading);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
        }

        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            margin: 8px 16px 0;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-dark);
            padding: 16px;
            flex-direction: column;
            gap: 8px;
            z-index: 50;
            border: 1px solid var(--border-light);
        }

        .mobile-nav.open {
            display: flex;
        }

        .mobile-nav .nav-chip {
            width: 100%;
            justify-content: flex-start;
            padding: 12px 16px;
            font-size: 15px;
            border-radius: 12px;
        }

        .mobile-nav .mobile-cta {
            margin-top: 8px;
            width: 100%;
        }

        /* ===== Hero ===== */
        .hero-section {
            padding: 24px 0 52px;
            background: transparent;
        }

        .hero-panel {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 45%, #1E3A8A 100%);
            border-radius: var(--radius-xl);
            padding: 48px 52px;
            display: grid;
            grid-template-columns: 1.2fr 0.9fr;
            gap: 40px;
            align-items: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-dark);
        }

        .hero-panel::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 60%;
            height: 220%;
            background: radial-gradient(ellipse at center, rgba(37,99,235,0.18) 0%, transparent 65%);
            pointer-events: none;
        }

        .hero-panel::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: 10%;
            width: 50%;
            height: 140%;
            background: radial-gradient(ellipse at center, rgba(59,130,246,0.1) 0%, transparent 60%);
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(37, 99, 235, 0.25);
            border: 1px solid rgba(59, 130, 246, 0.4);
            color: #DBEAFE;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero-title {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            color: #FFFFFF;
            letter-spacing: -0.01em;
            margin-bottom: 18px;
        }

        .hero-title .highlight {
            color: #60A5FA;
        }

        .hero-desc {
            font-size: 16px;
            line-height: 1.75;
            color: #CBD5E1;
            margin-bottom: 28px;
            max-width: 560px;
        }

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

        .hero-data-panel {
            position: relative;
            z-index: 2;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 24px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .hero-data-panel .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
        }

        .hero-data-panel .panel-title {
            font-size: 15px;
            font-weight: 600;
            color: #F1F5F9;
        }

        .hero-data-panel .panel-tag {
            font-size: 12px;
            color: #60A5FA;
            background: rgba(37, 99, 235, 0.25);
            padding: 4px 10px;
            border-radius: 999px;
            font-weight: 500;
        }

        .data-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

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

        .data-row .data-label {
            color: #94A3B8;
            font-size: 13px;
        }

        .data-row .data-value {
            color: #F1F5F9;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .data-row .data-value .num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(59, 130, 246, 0.25);
            margin: 0 2px;
            font-size: 13px;
            font-weight: 700;
            color: #DBEAFE;
        }

        .hero-bg-img {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 0;
            opacity: 0.12;
            pointer-events: none;
            border-radius: var(--radius-xl);
            overflow: hidden;
        }

        .hero-bg-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-xl);
        }

        /* ===== Sections ===== */
        .section {
            padding: var(--section-pad) 0;
        }

        .section-alt {
            background: #FFFFFF;
        }

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

        .section-header {
            margin-bottom: 36px;
        }

        .section-header.left {
            text-align: left;
        }
        .section-header.center {
            text-align: center;
        }

        .section-kicker {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-tint);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.75;
            margin-top: 10px;
            max-width: 640px;
        }

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

        /* ===== Cards & Grids ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--card-gap);
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap);
        }

        .card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

        .card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-tint-strong);
        }

        .card .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 16px;
            background: var(--bg-slate);
        }

        .card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
            transition: transform var(--transition-slow);
        }

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

        .card .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.4;
        }

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

        .card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .card .card-link .arrow {
            transition: transform var(--transition);
        }
        .card .card-link:hover .arrow {
            transform: translateX(3px);
        }

        /* ===== Data stats ===== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap);
        }

        .stat-item {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

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

        .stat-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 6px;
        }

        /* ===== Steps ===== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap);
        }

        .step-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            position: relative;
            transition: all var(--transition);
        }

        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .step-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 6px;
        }

        .step-text {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.7;
        }

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

        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 14px 18px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            text-decoration: none;
            color: inherit;
        }

        .news-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-tint-strong);
        }

        .news-item .news-date {
            font-size: 12px;
            color: var(--text-weak);
            flex-shrink: 0;
            min-width: 70px;
        }

        .news-item .news-title {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-heading);
            flex: 1;
        }

        .news-item .news-arrow {
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
        }

        /* ===== Trust / security ===== */
        .trust-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap);
        }

        .trust-item {
            text-align: center;
            padding: 20px 14px;
        }

        .trust-item .trust-icon {
            font-size: 32px;
            margin-bottom: 10px;
        }

        .trust-item .trust-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 4px;
        }

        .trust-item .trust-text {
            font-size: 13px;
            color: var(--text-weak);
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            background: #FFFFFF;
            transition: all var(--transition);
            width: 100%;
            text-align: left;
        }

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

        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--text-weak);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
        }

        /* ===== CTA band ===== */
        .cta-band {
            background: linear-gradient(135deg, #1E3A8A 0%, #2563EB 55%, #3B82F6 100%);
            border-radius: var(--radius-xl);
            padding: 44px 40px;
            text-align: center;
            box-shadow: var(--shadow-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 50%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(255,255,255,0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-band .cta-title {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            position: relative;
            z-index: 2;
        }

        .cta-band .cta-text {
            font-size: 15px;
            color: #DBEAFE;
            margin-bottom: 22px;
            position: relative;
            z-index: 2;
        }

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

        /* ===== Brand intro ===== */
        .brand-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .brand-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
        }

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

        .brand-info .section-title {
            margin-bottom: 14px;
        }

        .brand-info .brand-text {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .brand-info .brand-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .brand-info .brand-tag {
            font-size: 13px;
            font-weight: 500;
            padding: 5px 14px;
            border-radius: 999px;
            background: var(--primary-tint);
            color: var(--primary);
            border: 1px solid var(--primary-tint-strong);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 48px 0 28px;
            margin-top: 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-brand .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
        }

        .footer-brand .footer-logo .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #F1F5F9;
        }

        .footer-brand .footer-desc {
            font-size: 13px;
            line-height: 1.75;
            color: var(--text-light);
            margin-bottom: 14px;
        }

        .footer-col .footer-heading {
            font-size: 14px;
            font-weight: 600;
            color: #E2E8F0;
            margin-bottom: 14px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-light);
            transition: color var(--transition);
        }

        .footer-col ul a:hover {
            color: #60A5FA;
        }

        .footer-bottom {
            border-top: 1px solid #2D3748;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
        }

        .footer-bottom .beian {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }

        .footer-bottom a {
            color: var(--text-light);
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: #60A5FA;
        }

        /* ===== Buttons & badges ===== */
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }

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

        .badge-green {
            background: #ECFDF5;
            color: #059669;
        }

        .badge-slate {
            background: var(--bg-slate);
            color: var(--text-weak);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-panel {
                padding: 36px 32px;
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-data-panel {
                max-width: 480px;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 48px;
                --card-gap: 16px;
            }

            .container {
                padding: 0 16px;
            }

            .site-header {
                padding: 10px 0;
            }

            .header-panel {
                padding: 8px 14px;
                border-radius: var(--radius);
                flex-wrap: wrap;
            }

            .header-nav {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .mobile-nav {
                margin: 8px 0 0;
            }

            .hero-section {
                padding: 12px 0 36px;
            }

            .hero-panel {
                padding: 28px 20px;
                border-radius: var(--radius-lg);
            }

            .hero-title {
                font-size: 28px;
                line-height: 1.3;
            }

            .hero-desc {
                font-size: 14px;
                line-height: 1.7;
            }

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

            .hero-data-panel {
                padding: 16px;
            }

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

            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-num {
                font-size: 26px;
            }

            .steps-row {
                grid-template-columns: 1fr;
            }

            .trust-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

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

            .brand-img {
                aspect-ratio: 16/10;
            }

            .news-item {
                padding: 12px 14px;
                flex-wrap: wrap;
            }

            .news-item .news-date {
                min-width: auto;
            }

            .cta-band {
                padding: 32px 20px;
            }
            .cta-band .cta-title {
                font-size: 22px;
            }

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

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

        @media (max-width: 520px) {
            .hero-title {
                font-size: 24px;
            }
            .hero-desc {
                font-size: 13px;
            }
            .hero-data-panel {
                padding: 12px;
            }
            .data-row .data-value .num {
                width: 24px;
                height: 24px;
                font-size: 11px;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-num {
                font-size: 22px;
            }
            .trust-row {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 21px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 13px;
            }
            .btn-lg {
                padding: 11px 22px;
                font-size: 14px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1D4ED8;
            --primary-tint: #EFF6FF;
            --primary-tint-strong: #DBEAFE;
            --accent: #0EA5E9;
            --accent-tint: #E0F2FE;
            --bg: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-slate: #F1F5F9;
            --bg-dark: #0F172A;
            --bg-dark-2: #1E293B;
            --text-dark: #0F172A;
            --text-heading: #1E293B;
            --text-body: #475569;
            --text-weak: #64748B;
            --text-light: #94A3B8;
            --text-white: #F8FAFC;
            --border: #E2E8F0;
            --border-light: #E8EDF3;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 4px 12px rgba(15, 23, 42, 0.1), 0 8px 32px rgba(15, 23, 42, 0.1);
            --shadow-nav: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.08);
            --shadow-dark: 0 4px 16px rgba(15, 23, 42, 0.2), 0 8px 40px rgba(15, 23, 42, 0.3);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --container-max: 1200px;
            --section-pad: 48px;
            --section-pad-mobile: 40px;
            --card-gap: 16px;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: none;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            padding: 14px 0;
            background: transparent;
            transition: background var(--transition-slow), box-shadow var(--transition-slow);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 2px 16px rgba(15, 23, 42, 0.06);
        }

        .header-panel {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-nav);
            padding: 10px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

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

        .header-logo .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .header-logo .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .header-logo .logo-text em {
            font-style: normal;
            color: var(--primary);
        }

        .header-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

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

        .nav-chip {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-heading);
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-chip .nav-icon {
            font-size: 15px;
            line-height: 1;
        }

        .nav-chip:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
        }

        .nav-chip.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
        }

        .nav-chip.active .nav-icon {
            filter: brightness(0) invert(1);
        }

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

        .header-cta .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            text-decoration: none;
            transition: all var(--transition);
            border: 1px solid var(--primary);
        }

        .header-cta .btn:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border-light);
            background: #fff;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: all var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-heading);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            padding: 24px 0 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-weak);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .breadcrumb .sep {
            color: var(--text-light);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--text-heading);
            font-weight: 500;
        }

        /* ===== Page Top Section ===== */
        .page-top {
            padding: 32px 0 24px;
        }

        .page-top .top-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .page-top .top-main {
            flex: 1 1 60%;
            min-width: 280px;
        }

        .page-top .top-aside {
            flex: 0 0 300px;
            min-width: 260px;
        }

        .page-top h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 12px;
        }

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

        .page-top .page-desc {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            max-width: 620px;
        }

        .top-aside-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 20px;
        }

        .top-aside-card .aside-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-weak);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .top-aside-card .aside-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .top-aside-card .stat-item {
            flex: 1 1 40%;
            min-width: 80px;
        }

        .top-aside-card .stat-value {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
        }

        .top-aside-card .stat-name {
            font-size: 12px;
            color: var(--text-weak);
        }

        /* ===== Roadmap / Timeline Section ===== */
        .roadmap-section {
            padding: 28px 0 32px;
        }

        .roadmap-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px 28px;
        }

        .roadmap-card .roadmap-title {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 18px;
        }

        .roadmap-card .roadmap-title .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            display: inline-block;
        }

        .roadmap-track {
            display: flex;
            gap: 0;
            align-items: flex-start;
            position: relative;
            overflow-x: auto;
            padding-bottom: 4px;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }

        .roadmap-track::-webkit-scrollbar {
            height: 4px;
        }

        .roadmap-track::-webkit-scrollbar-track {
            background: transparent;
        }

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

        .roadmap-node {
            flex: 0 0 auto;
            min-width: 160px;
            position: relative;
            padding-right: 24px;
        }

        .roadmap-node::after {
            content: '';
            position: absolute;
            top: 10px;
            right: 0;
            width: 24px;
            height: 2px;
            background: var(--border-light);
        }

        .roadmap-node:last-child::after {
            display: none;
        }

        .roadmap-node .node-date {
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .roadmap-node .node-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid #fff;
            box-shadow: 0 0 0 2px var(--primary-tint-strong);
            margin-right: 6px;
        }

        .roadmap-node .node-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 2px;
        }

        .roadmap-node .node-desc {
            font-size: 12px;
            color: var(--text-weak);
            line-height: 1.5;
        }

        /* ===== Tag Filter Section ===== */
        .tag-section {
            padding: 20px 0 8px;
        }

        .tag-group {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }

        .tag-filter {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-heading);
            background: var(--bg-white);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all var(--transition);
            user-select: none;
        }

        .tag-filter:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
        }

        .tag-filter.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 2px 10px rgba(37, 99, 235, 0.2);
        }

        /* ===== Main Content / Article List ===== */
        .main-list-section {
            padding: 24px 0 32px;
        }

        .list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--card-gap);
        }

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

        .list-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--primary-tint-strong);
        }

        .list-card .card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-slate);
        }

        .list-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .list-card .card-image .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(15, 23, 42, 0.75);
            backdrop-filter: blur(4px);
            color: #fff;
            font-size: 11px;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: 6px;
            z-index: 1;
        }

        .list-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .list-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.4;
            margin-bottom: 8px;
            transition: color var(--transition);
        }

        .list-card:hover .card-title {
            color: var(--primary);
        }

        .list-card .card-excerpt {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .list-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-light);
            padding-top: 10px;
            border-top: 1px solid var(--border-light);
        }

        .list-card .card-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .list-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            transition: all var(--transition);
            margin-left: auto;
            white-space: nowrap;
        }

        .list-card .card-link:hover {
            color: var(--primary-dark);
            gap: 6px;
        }

        .list-card .card-link .arrow {
            font-size: 14px;
            transition: transform var(--transition);
        }

        .list-card .card-link:hover .arrow {
            transform: translateX(2px);
        }

        /* ===== Stats Bar Section ===== */
        .stats-bar-section {
            padding: 20px 0 32px;
        }

        .stats-bar {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .stats-bar .stat-block {
            text-align: center;
            padding: 12px 8px;
            border-radius: var(--radius);
            background: var(--bg-slate);
            transition: all var(--transition);
        }

        .stats-bar .stat-block:hover {
            background: var(--primary-tint);
        }

        .stats-bar .stat-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
        }

        .stats-bar .stat-label {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 2px;
        }

        /* ===== Related Articles Section ===== */
        .related-section {
            padding: 24px 0 32px;
        }

        .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .section-heading h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: -0.3px;
        }

        .section-heading .heading-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            text-decoration: none;
            transition: all var(--transition);
        }

        .section-heading .heading-link:hover {
            color: var(--primary-dark);
            gap: 6px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }

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

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

        .related-card .related-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-slate);
        }

        .related-card .related-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .related-card .related-body {
            padding: 14px 16px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card .related-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.4;
            margin-bottom: 6px;
            transition: color var(--transition);
        }

        .related-card:hover .related-title {
            color: var(--primary);
        }

        .related-card .related-date {
            font-size: 12px;
            color: var(--text-light);
            margin-top: auto;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 24px 0 32px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

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

        .faq-item .faq-question {
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition);
        }

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

        .faq-item .faq-question-text {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.4;
        }

        .faq-item .faq-arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg-slate);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text-weak);
            transition: all var(--transition);
        }

        .faq-item.open .faq-arrow {
            background: var(--primary);
            color: #fff;
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 220px;
            padding: 0 20px 16px;
        }

        .faq-item .faq-answer p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 24px 0 40px;
        }

        .cta-card {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary) 60%, var(--accent));
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            text-align: center;
            box-shadow: var(--shadow-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
        }

        .cta-card h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.3px;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 480px;
            margin: 0 auto 20px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }

        .cta-card .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 28px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            background: #fff;
            color: var(--primary-dark);
            text-decoration: none;
            transition: all var(--transition);
            position: relative;
            z-index: 1;
            border: 1px solid #fff;
        }

        .cta-card .btn-white:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint);
            box-shadow: 0 4px 20px rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 48px 0 24px;
            margin-top: 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-brand .footer-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }

        .footer-brand .footer-logo .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: -0.3px;
        }

        .footer-brand .footer-desc {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col .footer-heading {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

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

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-light);
            text-decoration: none;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

        .footer-bottom {
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-light);
        }

        .footer-bottom .beian {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-bottom .beian a {
            color: var(--text-light);
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom .beian a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .page-top .top-aside {
                flex: 0 0 260px;
            }

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

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }

            .header-panel {
                flex-wrap: wrap;
                gap: 10px;
                padding: 10px 14px;
            }

            .header-nav {
                order: 3;
                width: 100%;
                display: none;
                flex-direction: column;
                gap: 6px;
                padding-top: 6px;
            }

            .header-nav.mobile-open {
                display: flex;
            }

            .nav-chip {
                width: 100%;
                justify-content: flex-start;
                padding: 10px 14px;
            }

            .nav-toggle {
                display: flex;
            }

            .header-cta {
                margin-left: auto;
            }

            .header-cta .btn {
                padding: 8px 14px;
                font-size: 13px;
            }

            .page-top {
                padding: 24px 0 16px;
            }

            .page-top .top-inner {
                flex-direction: column;
                gap: 20px;
            }

            .page-top .top-aside {
                flex: 1 1 100%;
                min-width: 0;
                width: 100%;
            }

            .page-top h1 {
                font-size: 28px;
            }

            .roadmap-card {
                padding: 18px 16px;
            }

            .roadmap-node {
                min-width: 140px;
                padding-right: 16px;
            }

            .roadmap-node::after {
                width: 16px;
            }

            .list-grid {
                grid-template-columns: 1fr;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 16px;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

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

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

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

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

        @media (max-width: 520px) {
            .page-top h1 {
                font-size: 24px;
            }

            .stats-bar {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .stats-bar .stat-block {
                padding: 10px 8px;
            }

            .roadmap-node {
                min-width: 130px;
            }

            .tag-group {
                gap: 6px;
            }

            .tag-filter {
                padding: 6px 12px;
                font-size: 12px;
            }

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

            .cta-card .btn-white {
                padding: 10px 22px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1D4ED8;
            --primary-tint: #EFF6FF;
            --primary-tint-strong: #DBEAFE;
            --accent: #0EA5E9;
            --accent-tint: #E0F2FE;
            --bg: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-slate: #F1F5F9;
            --bg-dark: #0F172A;
            --bg-dark-2: #1E293B;
            --text-dark: #0F172A;
            --text-heading: #1E293B;
            --text-body: #475569;
            --text-weak: #64748B;
            --text-light: #94A3B8;
            --text-white: #F8FAFC;
            --border: #E2E8F0;
            --border-light: #E8EDF3;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15,23,42,0.06), 0 4px 16px rgba(15,23,42,0.06);
            --shadow-card-hover: 0 4px 12px rgba(15,23,42,0.1), 0 8px 32px rgba(15,23,42,0.1);
            --shadow-nav: 0 1px 2px rgba(15,23,42,0.04), 0 8px 24px rgba(15,23,42,0.08);
            --shadow-dark: 0 4px 16px rgba(15,23,42,0.2), 0 8px 40px rgba(15,23,42,0.3);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --container-max: 1200px;
            --section-pad: 48px;
            --section-pad-mobile: 36px;
            --card-gap: 22px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: none;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-tint {
            background: var(--bg-slate);
        }
        .section-heading {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            margin-bottom: 8px;
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-weak);
            max-width: 640px;
            line-height: 1.7;
        }
        .section-head-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 24px;
            gap: 16px;
            flex-wrap: wrap;
        }
        .section-head-row .left-area {
            flex: 1;
            min-width: 0;
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            white-space: nowrap;
            transition: all var(--transition);
        }
        .text-link .arrow {
            transition: transform var(--transition);
            font-size: 16px;
            line-height: 1;
        }
        .text-link:hover {
            color: var(--primary-dark);
        }
        .text-link:hover .arrow {
            transform: translateX(3px);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 99px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.2px;
            background: var(--primary-tint);
            color: var(--primary);
            border: 1px solid var(--primary-tint-strong);
            white-space: nowrap;
            line-height: 1.6;
        }
        .badge-outline {
            background: var(--bg-white);
            border-color: var(--border);
            color: var(--text-weak);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            border: 1px solid transparent;
            line-height: 1.5;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
        }
        .btn-outline {
            background: var(--bg-white);
            color: var(--primary);
            border-color: var(--primary-light);
        }
        .btn-outline:hover {
            background: var(--primary-tint);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .btn-ghost {
            background: transparent;
            color: var(--primary);
            border-color: transparent;
            padding-left: 6px;
            padding-right: 6px;
        }
        .btn-ghost:hover {
            background: var(--primary-tint);
            color: var(--primary-dark);
        }
        .btn:focus-visible,
        .nav-chip:focus-visible,
        .filter-tag:focus-visible,
        .faq-trigger:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-slow);
        }
        .card-hover:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-tint-strong);
        }
        .card-media {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-slate);
        }
        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card-hover:hover .card-media img {
            transform: scale(1.04);
        }
        .card-body {
            padding: 16px 18px 18px;
        }
        .card-title {
            font-size: 17px;
            font-weight: 650;
            color: var(--text-heading);
            line-height: 1.45;
            margin-bottom: 8px;
            letter-spacing: -0.2px;
        }
        .card-title a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        .card-title a:hover {
            color: var(--primary);
        }
        .card-summary {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-light);
        }
        .card-meta .divider {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: var(--border);
        }
        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            padding: 14px 0;
            background: transparent;
            transition: background var(--transition-slow), box-shadow var(--transition-slow);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .header-panel {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-nav);
            padding: 10px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            max-width: var(--container-max);
            margin: 0 auto;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .header-logo .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .header-logo .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .header-logo .logo-text em {
            font-style: normal;
            color: var(--primary);
        }
        .header-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-chip {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-heading);
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-chip .nav-icon {
            font-size: 15px;
            line-height: 1;
        }
        .nav-chip:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
        }
        .nav-chip.active {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
            font-weight: 600;
        }
        .header-cta {
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--bg-white);
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text-heading);
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
        }
        .mobile-nav-panel {
            display: none;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-nav);
            padding: 16px;
            margin-top: 8px;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
        }
        .mobile-nav-panel .mobile-nav-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
        }
        .mobile-nav-panel .nav-chip {
            justify-content: flex-start;
            padding: 12px 14px;
        }
        .mobile-nav-panel .mobile-cta {
            margin-top: 12px;
            width: 100%;
        }
        /* Breadcrumb */
        .breadcrumb-section {
            padding: 24px 0 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-weak);
            text-decoration: none;
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-light);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--text-heading);
            font-weight: 500;
        }
        /* Category Header */
        .cat-header {
            padding: 24px 0 20px;
        }
        .cat-header h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 10px;
        }
        .cat-header .cat-desc {
            font-size: 15px;
            color: var(--text-weak);
            max-width: 720px;
            line-height: 1.75;
        }
        /* Filter Tags */
        .filter-section {
            padding: 12px 0 20px;
        }
        .filter-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tag {
            padding: 7px 16px;
            border-radius: 99px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-heading);
            background: var(--bg-white);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
        }
        .filter-tag.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        /* Article Grid */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }
        .article-grid .card {
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .article-grid .card-body {
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-grid .card-summary {
            flex: 1;
        }
        /* Stats Strip */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 18px 20px;
            text-align: center;
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 4px;
        }
        /* Related */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }
        /* FAQ */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-tint-strong);
        }
        .faq-trigger {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            background: none;
            text-align: left;
            transition: all var(--transition);
        }
        .faq-trigger:hover {
            color: var(--primary);
        }
        .faq-trigger .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-tint);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            transition: transform var(--transition);
            font-weight: 400;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
            padding: 0 20px;
        }
        .faq-item.open .faq-content {
            max-height: 300px;
            padding-bottom: 16px;
        }
        .faq-content p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
        }
        /* CTA */
        .cta-banner {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-dark);
        }
        .cta-banner .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.3px;
            margin-bottom: 6px;
        }
        .cta-banner .cta-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
            line-height: 1.65;
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            font-weight: 700;
            padding: 11px 28px;
        }
        .btn-white:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint);
            color: var(--primary-dark);
        }
        /* Note block */
        .note-block {
            background: var(--accent-tint);
            border: 1px solid #BAE6FD;
            border-radius: var(--radius);
            padding: 18px 22px;
            font-size: 14px;
            color: var(--text-heading);
            line-height: 1.7;
        }
        .note-block strong {
            color: var(--primary-dark);
        }
        /* Data table list */
        .data-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .data-list-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            transition: all var(--transition);
        }
        .data-list-item:hover {
            border-color: var(--primary-tint-strong);
            box-shadow: var(--shadow-card);
        }
        .data-list-item .date-tag {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-heading);
            background: var(--bg-slate);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            white-space: nowrap;
        }
        .data-list-item .lottery-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            white-space: nowrap;
        }
        .data-list-item .lottery-numbers {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .data-list-item .lottery-numbers span {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--primary-tint);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--primary-tint-strong);
        }
        .data-list-item .status {
            font-size: 12px;
            color: var(--text-light);
            margin-left: auto;
            white-space: nowrap;
        }
        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand .footer-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }
        .footer-brand .footer-logo .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: -0.3px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-light);
            max-width: 380px;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 650;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: -0.2px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--text-white);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-light);
        }
        .footer-bottom .beian {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .footer-bottom .beian a {
            color: var(--text-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-bottom .beian a:hover {
            color: var(--text-white);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .header-nav {
                gap: 4px;
            }
            .nav-chip {
                padding: 7px 11px;
                font-size: 13px;
            }
            .cat-header h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 768px) {
            .header-panel {
                padding: 10px 14px;
            }
            .header-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav-panel.show {
                display: block;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .section-heading {
                font-size: 22px;
            }
            .cat-header h1 {
                font-size: 26px;
            }
            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 22px;
            }
            .cta-banner {
                padding: 28px 22px;
                flex-direction: column;
                text-align: center;
            }
            .cta-banner .cta-text p {
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .data-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .data-list-item .status {
                margin-left: 0;
            }
            .breadcrumb-section {
                padding-top: 16px;
            }
            .cat-header {
                padding: 16px 0 12px;
            }
            .card-title {
                font-size: 16px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-panel {
                padding: 8px 12px;
            }
            .header-logo .logo-text {
                font-size: 16px;
            }
            .header-logo .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
                border-radius: 10px;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 14px 10px;
            }
            .stat-number {
                font-size: 19px;
            }
            .stat-label {
                font-size: 12px;
            }
            .cat-header h1 {
                font-size: 22px;
            }
            .cat-header .cat-desc {
                font-size: 14px;
            }
            .filter-tag {
                padding: 6px 12px;
                font-size: 12px;
            }
            .section-heading {
                font-size: 20px;
            }
            .cta-banner .cta-text h2 {
                font-size: 20px;
            }
            .faq-trigger {
                font-size: 14px;
                padding: 14px 15px;
            }
            .mobile-nav-panel .mobile-nav-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1D4ED8;
            --primary-tint: #EFF6FF;
            --primary-tint-strong: #DBEAFE;
            --accent: #0EA5E9;
            --accent-tint: #E0F2FE;
            --bg: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-slate: #F1F5F9;
            --bg-dark: #0F172A;
            --bg-dark-2: #1E293B;
            --text-dark: #0F172A;
            --text-heading: #1E293B;
            --text-body: #475569;
            --text-weak: #64748B;
            --text-light: #94A3B8;
            --text-white: #F8FAFC;
            --border: #E2E8F0;
            --border-light: #E8EDF3;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 4px 12px rgba(15, 23, 42, 0.1), 0 8px 32px rgba(15, 23, 42, 0.1);
            --shadow-nav: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.08);
            --shadow-dark: 0 4px 16px rgba(15, 23, 42, 0.2), 0 8px 40px rgba(15, 23, 42, 0.3);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --container-max: 1200px;
            --section-pad: 56px;
            --section-pad-mobile: 40px;
            --card-gap: 22px;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: none;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul {
            list-style: none;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            padding: 14px 0;
            background: transparent;
            transition: background var(--transition-slow), box-shadow var(--transition-slow);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-nav);
        }

        .header-panel {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-nav);
            padding: 10px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

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

        .header-logo .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .header-logo .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .header-logo .logo-text em {
            font-style: normal;
            color: var(--primary);
        }

        .header-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

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

        .nav-chip {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-heading);
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-chip .nav-icon {
            font-size: 15px;
            line-height: 1;
        }

        .nav-chip:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .nav-chip.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
            text-decoration: none;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border-light);
            background: #fff;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            flex-shrink: 0;
        }

        .menu-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-heading);
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            padding: 28px 0 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            font-size: 13px;
            color: var(--text-weak);
            gap: 6px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-weak);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .breadcrumb .sep {
            color: var(--text-light);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Page Header (分类页弱化首屏) ===== */
        .page-head {
            padding: 32px 0 28px;
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 32px;
        }

        .page-head-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .page-head-left {
            flex: 1;
            min-width: 0;
        }

        .page-head h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .page-head h1 em {
            font-style: normal;
            color: var(--primary);
        }

        .page-head-desc {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
            max-width: 720px;
        }

        .page-head-stamp {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 18px;
            background: var(--primary-tint);
            border-radius: var(--radius);
            border: 1px solid var(--primary-tint-strong);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
        }

        .page-head-stamp .stamp-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        /* ===== Section通用 ===== */
        section {
            padding: var(--section-pad) 0;
        }

        section:nth-child(even) {
            background: #fff;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.4px;
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-weak);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        /* ===== Stats Bar ===== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .stat-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 20px 22px;
            text-align: left;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }

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

        .stat-card .stat-value {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-card .stat-label {
            font-size: 13px;
            color: var(--text-weak);
            font-weight: 500;
        }

        .stat-card.accent .stat-value {
            color: var(--accent);
        }

        /* ===== Filter Tags ===== */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            padding: 4px 0;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-body);
            background: #fff;
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--primary-tint-strong);
            background: var(--primary-tint);
            color: var(--primary);
        }

        .filter-tag.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
        }

        /* ===== Article Card Grid ===== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }

        .article-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-tint-strong);
        }

        .article-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

        .article-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .article-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-tint);
            border-radius: 6px;
            padding: 3px 10px;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .article-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .article-card .card-desc {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
            margin-bottom: 14px;
            flex: 1;
        }

        .article-card .card-meta {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
        }

        .article-card .card-meta .date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .article-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }

        .article-card .card-link::after {
            content: '→';
            transition: transform var(--transition);
        }

        .article-card .card-link:hover::after {
            transform: translateX(4px);
        }

        /* ===== Feature List (图文左文右图) ===== */
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .feature-item {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 24px;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            align-items: stretch;
        }

        .feature-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-tint-strong);
        }

        .feature-item .feature-info {
            padding: 24px 26px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .feature-item .feature-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-tint);
            border-radius: 6px;
            padding: 3px 10px;
            display: inline-block;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .feature-item .feature-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .feature-item .feature-desc {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
        }

        .feature-item .feature-img {
            overflow: hidden;
            aspect-ratio: 4/3;
            min-height: 160px;
        }

        .feature-item .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .feature-item:hover .feature-img img {
            transform: scale(1.03);
        }

        /* ===== Related ===== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }

        .related-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .related-card .related-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .related-card .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .related-card .related-body {
            padding: 16px 18px 18px;
        }

        .related-card .related-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.45;
            margin-bottom: 6px;
        }

        .related-card .related-meta {
            font-size: 13px;
            color: var(--text-light);
        }

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

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            transition: color var(--transition);
            border: none;
            background: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }

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

        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--bg-slate);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            color: var(--text-weak);
            font-size: 16px;
        }

        .faq-item.open .faq-question .faq-arrow {
            background: var(--primary);
            color: #fff;
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
            padding: 0 20px;
            color: var(--text-body);
            font-size: 14px;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 20px 18px;
        }

        /* ===== CTA 收合区 ===== */
        .cta-panel {
            background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark-2));
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            box-shadow: var(--shadow-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.18), transparent 70%);
            pointer-events: none;
        }

        .cta-panel::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(14, 165, 233, 0.12), transparent 70%);
            pointer-events: none;
        }

        .cta-panel .cta-title {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.4px;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-panel .cta-desc {
            font-size: 15px;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }

        .cta-panel .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            transition: all var(--transition);
            text-decoration: none;
            font-family: inherit;
            position: relative;
            z-index: 1;
        }

        .cta-panel .cta-btn:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
            transform: translateY(-2px);
        }

        /* ===== Section分隔线 ===== */
        .section-divider {
            height: 1px;
            background: var(--border-light);
            margin: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand {
            max-width: 320px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }

        .footer-logo .logo-text {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
        }

        .footer-heading {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-light);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--text-light);
        }

        .footer-bottom .beian {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .footer-bottom .beian a {
            color: var(--text-light);
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom .beian a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 48px;
                --card-gap: 16px;
            }

            .header-nav {
                gap: 4px;
            }

            .nav-chip {
                padding: 7px 11px;
                font-size: 13px;
            }

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

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

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

        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
                --card-gap: 14px;
            }

            .header-panel {
                flex-wrap: wrap;
                padding: 10px 14px;
                gap: 10px;
            }

            .header-nav {
                display: none;
                order: 10;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                background: #fff;
                border-radius: var(--radius);
                border: 1px solid var(--border-light);
                padding: 10px;
                box-shadow: var(--shadow-nav);
            }

            .header-nav.open {
                display: flex;
            }

            .nav-chip {
                width: 100%;
                justify-content: flex-start;
                padding: 10px 14px;
                border-radius: 8px;
            }

            .nav-cta {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

            .page-head h1 {
                font-size: 24px;
            }

            .page-head-inner {
                flex-direction: column;
            }

            .page-head-stamp {
                align-self: flex-start;
            }

            .article-grid {
                grid-template-columns: 1fr;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .feature-item {
                grid-template-columns: 1fr;
            }

            .feature-item .feature-img {
                order: -1;
                aspect-ratio: 16/9;
                min-height: auto;
            }

            .feature-item .feature-info {
                padding: 18px 20px;
            }

            .cta-panel {
                padding: 32px 24px;
            }

            .cta-panel .cta-title {
                font-size: 22px;
            }

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

            .footer-brand {
                max-width: 100%;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .header-panel {
                padding: 8px 12px;
                border-radius: var(--radius);
            }

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

            .header-logo .logo-text {
                font-size: 16px;
            }

            .page-head h1 {
                font-size: 21px;
            }

            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

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

            .stat-card .stat-value {
                font-size: 22px;
            }

            .filter-tag {
                padding: 6px 12px;
                font-size: 12px;
            }

            .article-card .card-title {
                font-size: 15px;
            }

            .section-title {
                font-size: 21px;
            }

            .breadcrumb {
                font-size: 12px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1D4ED8;
            --primary-tint: #EFF6FF;
            --primary-tint-strong: #DBEAFE;
            --accent: #0EA5E9;
            --accent-tint: #E0F2FE;
            --bg: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-slate: #F1F5F9;
            --bg-dark: #0F172A;
            --bg-dark-2: #1E293B;
            --text-dark: #0F172A;
            --text-heading: #1E293B;
            --text-body: #475569;
            --text-weak: #64748B;
            --text-light: #94A3B8;
            --text-white: #F8FAFC;
            --border: #E2E8F0;
            --border-light: #E8EDF3;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 4px 12px rgba(15, 23, 42, 0.1), 0 8px 32px rgba(15, 23, 42, 0.1);
            --shadow-nav: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.08);
            --shadow-dark: 0 4px 16px rgba(15, 23, 42, 0.2), 0 8px 40px rgba(15, 23, 42, 0.3);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --container-max: 1200px;
            --section-pad: 48px;
            --card-gap: 16px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: none;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

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

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            padding: 14px 0;
            background: transparent;
            transition: background var(--transition-slow), box-shadow var(--transition-slow);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .header-panel {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-nav);
            padding: 10px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

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

        .header-logo .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .header-logo .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .header-logo .logo-text em {
            font-style: normal;
            color: var(--primary);
        }

        .header-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: inherit;
        }

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

        .nav-chip {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-heading);
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-chip .nav-icon {
            font-size: 15px;
            line-height: 1;
        }

        .nav-chip:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
        }

        .nav-chip.active {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
            font-weight: 600;
            box-shadow: 0 1px 4px rgba(37, 99, 235, 0.12);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
            line-height: 1.4;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
        }

        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-tint);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

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

        .btn-lg {
            padding: 13px 32px;
            font-size: 16px;
            border-radius: 10px;
        }

        .btn:focus-visible,
        .nav-chip:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .icon-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 500;
            font-size: 14px;
            text-decoration: none;
            transition: all var(--transition);
        }

        .icon-link:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        .icon-link .arrow {
            font-weight: 700;
            font-size: 16px;
            line-height: 1;
        }

        /* ===== Mobile Nav Toggle ===== */
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: #fff;
            cursor: pointer;
            transition: all var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            border-radius: 2px;
            background: var(--text-heading);
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
        }

        /* ===== Page Top / Breadcrumb ===== */
        .page-top {
            padding: 32px 0 0;
            background: var(--bg);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-weak);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .breadcrumb .sep {
            color: var(--text-light);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        .page-top-head {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

        .page-top-head h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            line-height: 1.3;
            margin: 0;
        }

        .page-top-desc {
            font-size: 15px;
            color: var(--text-body);
            max-width: 720px;
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Section Base ===== */
        .section {
            padding: var(--section-pad) 0;
        }

        .section-alt {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .section-head h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.2px;
            margin: 0;
        }

        .section-head .sub {
            font-size: 14px;
            color: var(--text-weak);
            margin: 6px 0 0;
        }

        /* ===== Stats Strip ===== */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap);
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .stat-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 22px 20px;
            text-align: center;
            transition: all var(--transition);
        }

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

        .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 6px;
        }

        /* ===== Tool Cards Grid ===== */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

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

        .tool-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--primary-tint-strong);
        }

        .tool-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            aspect-ratio: 16/9;
            display: block;
            background: var(--bg-slate);
        }

        .tool-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .tool-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.4;
            margin: 0;
        }

        .tool-card .tool-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        .tool-card .tool-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-weak);
        }

        .tool-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            background: var(--primary-tint);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
        }

        .tool-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            transition: all var(--transition);
            margin-top: auto;
        }

        .tool-card .card-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* ===== Filter Tags ===== */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            padding: 6px 0;
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-heading);
            background: var(--bg-white);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            user-select: none;
        }

        .filter-chip:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
        }

        .filter-chip.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
        }

        /* ===== Capability List ===== */
        .capability-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .capability-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 20px 22px;
            transition: all var(--transition);
        }

        .capability-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary-tint-strong);
        }

        .capability-item .cap-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
        }

        .capability-item .cap-icon {
            font-size: 20px;
            line-height: 1;
        }

        .capability-item .cap-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Related Articles ===== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

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

        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .related-card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            aspect-ratio: 16/9;
            display: block;
            background: var(--bg-slate);
        }

        .related-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .related-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.5;
            margin: 0;
        }

        .related-card h3 a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .related-card .related-date {
            font-size: 12px;
            color: var(--text-light);
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            background: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }

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

        .faq-question .faq-arrow {
            flex-shrink: 0;
            font-size: 18px;
            line-height: 1;
            color: var(--text-weak);
            transition: transform var(--transition-slow);
            font-weight: 400;
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-panel {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }

        .cta-panel::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }

        .cta-panel h2 {
            font-size: 28px;
            font-weight: 700;
            margin: 0 0 12px;
            letter-spacing: -0.3px;
            position: relative;
            z-index: 1;
        }

        .cta-panel p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 28px;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-panel .btn-white {
            background: #fff;
            color: var(--primary);
            border: none;
            padding: 13px 34px;
            font-size: 16px;
            font-weight: 700;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            text-decoration: none;
            position: relative;
            z-index: 1;
        }

        .cta-panel .btn-white:hover {
            background: var(--primary-tint);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 48px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-logo .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.3px;
        }

        .footer-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin: 0;
            max-width: 360px;
        }

        .footer-heading {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.2px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.72);
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom .beian {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-bottom .beian a {
            color: rgba(255, 255, 255, 0.72);
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom .beian a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .capability-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }

            .header-panel {
                flex-wrap: wrap;
                padding: 10px 14px;
            }

            .nav-toggle {
                display: flex;
            }

            .header-nav {
                display: none;
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                padding-top: 10px;
                gap: 6px;
                border-top: 1px solid var(--border-light);
                margin-top: 6px;
            }

            .header-nav.open {
                display: flex;
            }

            .nav-chip {
                justify-content: flex-start;
                padding: 10px 14px;
                width: 100%;
            }

            .header-cta {
                margin-left: auto;
            }

            .page-top-head h1 {
                font-size: 28px;
            }

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

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

            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .capability-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .cta-panel {
                padding: 36px 24px;
                border-radius: var(--radius-lg);
            }

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

            .section {
                padding: 40px 0;
            }

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

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

            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-number {
                font-size: 24px;
            }

            .page-top-head h1 {
                font-size: 24px;
            }

            .header-logo .logo-text {
                font-size: 16px;
            }

            .header-cta .btn {
                padding: 8px 14px;
                font-size: 12px;
            }

            .filter-chip {
                padding: 5px 12px;
                font-size: 12px;
            }

            .tool-card-img {
                height: 160px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1D4ED8;
            --primary-tint: #EFF6FF;
            --primary-tint-strong: #DBEAFE;
            --accent: #0EA5E9;
            --accent-tint: #E0F2FE;
            --bg: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-slate: #F1F5F9;
            --bg-dark: #0F172A;
            --bg-dark-2: #1E293B;
            --text-dark: #0F172A;
            --text-heading: #1E293B;
            --text-body: #475569;
            --text-weak: #64748B;
            --text-light: #94A3B8;
            --text-white: #F8FAFC;
            --border: #E2E8F0;
            --border-light: #E8EDF3;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15,23,42,0.06), 0 4px 16px rgba(15,23,42,0.06);
            --shadow-card-hover: 0 4px 12px rgba(15,23,42,0.1), 0 8px 32px rgba(15,23,42,0.1);
            --shadow-nav: 0 1px 2px rgba(15,23,42,0.04), 0 8px 24px rgba(15,23,42,0.08);
            --shadow-dark: 0 4px 16px rgba(15,23,42,0.2), 0 8px 40px rgba(15,23,42,0.3);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --container-max: 1200px;
            --section-pad: 48px;
            --card-gap: 16px;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: none;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            padding: 14px 0;
            background: transparent;
            transition: background var(--transition-slow), box-shadow var(--transition-slow);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 1px 2px rgba(15,23,42,0.04), 0 8px 24px rgba(15,23,42,0.08);
        }

        .header-panel {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-nav);
            padding: 10px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

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

        .header-logo .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .header-logo .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .header-logo .logo-text em {
            font-style: normal;
            color: var(--primary);
        }

        .header-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

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

        .nav-chip {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-heading);
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-chip .nav-icon {
            font-size: 15px;
            line-height: 1;
        }

        .nav-chip:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
        }

        .nav-chip.active {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            text-decoration: none;
            transition: background var(--transition), transform var(--transition);
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--primary-tint);
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            border: 1px solid var(--primary-tint-strong);
            cursor: pointer;
        }

        /* ===== Breadcrumb & Category Hero ===== */
        .breadcrumb-bar {
            background: var(--bg);
            padding: 18px 0 8px;
            font-size: 14px;
            color: var(--text-weak);
        }

        .breadcrumb-bar a {
            color: var(--text-weak);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .breadcrumb-bar .separator {
            margin: 0 8px;
            color: var(--text-light);
        }

        .breadcrumb-bar .current {
            color: var(--primary);
            font-weight: 500;
        }

        .category-head {
            background: var(--bg);
            padding: 16px 0 24px;
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 32px;
        }

        .category-head-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .category-head-left {
            flex: 1;
            min-width: 280px;
        }

        .category-head-left h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .category-head-left .desc {
            font-size: 15px;
            color: var(--text-body);
            max-width: 720px;
            line-height: 1.8;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            background: var(--primary-tint);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            border: 1px solid var(--primary-tint-strong);
        }

        /* ===== Filter Tags ===== */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin: 24px 0 28px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-heading);
            margin-right: 4px;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: 999px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-body);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-tag:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
        }

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

        /* ===== Announcement Cards ===== */
        .announcement-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 22px;
            margin-bottom: 48px;
        }

        .announcement-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
            display: flex;
            flex-direction: column;
        }

        .announcement-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .announcement-card .card-thumb {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-slate);
        }

        .announcement-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .announcement-card:hover .card-thumb img {
            transform: scale(1.03);
        }

        .announcement-card .card-thumb .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.95);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
            border: 1px solid var(--border-light);
        }

        .announcement-card .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .announcement-card .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .announcement-card .card-body h3 a {
            color: var(--text-heading);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .announcement-card .card-body .excerpt {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 14px;
        }

        .announcement-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-weak);
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

        .announcement-card .card-meta .date {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .announcement-card .card-meta .tag {
            background: var(--bg-slate);
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 12px;
            color: var(--text-weak);
        }

        .card-link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            margin-top: 12px;
            transition: gap var(--transition);
        }

        .card-link-more:hover {
            gap: 10px;
            color: var(--primary-dark);
            text-decoration: underline;
        }

        /* ===== Stats Strip ===== */
        .stats-strip {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .stats-item {
            text-align: center;
            flex: 1;
            min-width: 120px;
        }

        .stats-item .stats-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .stats-item .stats-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* ===== Related Section ===== */
        .related-section {
            margin-bottom: 48px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 18px;
        }

        .related-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
        }

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

        .related-card .related-thumb {
            aspect-ratio: 4/3;
            overflow: hidden;
            background: var(--bg-slate);
        }

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

        .related-card .related-body {
            padding: 14px 16px 16px;
        }

        .related-card .related-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .related-card .related-body .related-meta {
            font-size: 12px;
            color: var(--text-weak);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 32px 28px;
            margin-bottom: 48px;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 16px 0;
            cursor: pointer;
            transition: border-color var(--transition);
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-tint);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform var(--transition);
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            display: none;
            margin-top: 10px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
        }

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

        /* ===== CTA ===== */
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            text-align: center;
            box-shadow: var(--shadow-dark);
            margin-bottom: 48px;
        }

        .cta-box h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }

        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition);
            cursor: pointer;
        }

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

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

        .btn-ghost {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 48px 0 24px;
            margin-top: 48px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-brand .footer-logo .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: -0.3px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 420px;
        }

        .footer-col .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 14px;
        }

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

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

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

        .footer-col ul li a:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid var(--bg-dark-2);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-light);
        }

        .footer-bottom .beian {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-bottom .beian a {
            color: var(--text-light);
            text-decoration: none;
        }

        .footer-bottom .beian a:hover {
            color: var(--primary-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .header-nav {
                gap: 4px;
            }
            .nav-chip {
                padding: 7px 10px;
                font-size: 13px;
            }
            .announcement-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 32px;
                --card-gap: 14px;
            }
            .container {
                padding: 0 16px;
            }
            .header-panel {
                flex-wrap: wrap;
                padding: 10px 14px;
            }
            .nav-toggle {
                display: flex;
            }
            .header-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 8px;
                padding-top: 12px;
                border-top: 1px solid var(--border-light);
                margin-top: 10px;
            }
            .header-nav.active {
                display: flex;
            }
            .nav-chip {
                width: 100%;
                padding: 10px 14px;
                font-size: 14px;
            }
            .nav-cta {
                width: 100%;
                justify-content: center;
                margin-top: 8px;
            }
            .category-head-left h1 {
                font-size: 26px;
            }
            .announcement-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-strip {
                padding: 18px 16px;
                gap: 12px;
            }
            .stats-item .stats-number {
                font-size: 22px;
            }
            .faq-section {
                padding: 20px 16px;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .cta-box h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom .beian {
                justify-content: center;
            }
            .filter-bar {
                gap: 6px;
            }
            .filter-tag {
                padding: 5px 12px;
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
            .category-head-inner {
                flex-direction: column;
            }
            .header-logo .logo-text {
                font-size: 17px;
            }
            .header-logo .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }
            .breadcrumb-bar {
                font-size: 13px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1D4ED8;
            --primary-tint: #EFF6FF;
            --primary-tint-strong: #DBEAFE;
            --accent: #0EA5E9;
            --accent-tint: #E0F2FE;
            --bg: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-slate: #F1F5F9;
            --bg-dark: #0F172A;
            --bg-dark-2: #1E293B;
            --text-dark: #0F172A;
            --text-heading: #1E293B;
            --text-body: #475569;
            --text-weak: #64748B;
            --text-light: #94A3B8;
            --text-white: #F8FAFC;
            --border: #E2E8F0;
            --border-light: #E8EDF3;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15,23,42,0.06), 0 4px 16px rgba(15,23,42,0.06);
            --shadow-card-hover: 0 4px 12px rgba(15,23,42,0.1), 0 8px 32px rgba(15,23,42,0.1);
            --shadow-nav: 0 1px 2px rgba(15,23,42,0.04), 0 8px 24px rgba(15,23,42,0.08);
            --shadow-dark: 0 4px 16px rgba(15,23,42,0.2), 0 8px 40px rgba(15,23,42,0.3);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --container-max: 1200px;
            --section-pad: 48px;
            --section-pad-mobile: 40px;
            --card-gap: 16px;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: none;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            cursor: pointer;
            background: none;
            padding: 0;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            padding: 14px 0;
            background: transparent;
            transition: background var(--transition-slow), box-shadow var(--transition-slow);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .header-panel {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-nav);
            padding: 10px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            max-width: var(--container-max);
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .header-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .logo-text em {
            font-style: normal;
            color: var(--primary);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-chip {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-heading);
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-chip .nav-icon {
            font-size: 15px;
            line-height: 1;
        }
        .nav-chip:hover {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
            transform: translateY(-1px);
        }
        .nav-chip.active {
            background: var(--primary-tint);
            border-color: var(--primary-tint-strong);
            color: var(--primary);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 18px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: var(--primary);
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            border-radius: 8px;
            background: var(--bg-slate);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-heading);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Breadcrumb & Page Header ===== */
        .page-head {
            padding: 28px 0 16px;
            background: linear-gradient(180deg, var(--primary-tint) 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border-light);
            margin-bottom: var(--section-pad);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 14px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-weak);
            text-decoration: none;
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-light);
            font-size: 12px;
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--text-heading);
            font-weight: 500;
        }
        .page-head h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 10px;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }
        .page-head .head-desc {
            font-size: 15px;
            color: var(--text-body);
            max-width: 720px;
            margin: 0;
            line-height: 1.75;
        }

        /* ===== Section Base ===== */
        section {
            padding: var(--section-pad) 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-tint);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            letter-spacing: -0.3px;
            line-height: 1.35;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-weak);
            margin: 0 0 24px;
            line-height: 1.7;
            max-width: 640px;
        }

        /* ===== Filter Tags ===== */
        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .filter-tag {
            padding: 7px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-body);
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: 20px;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .filter-tag:hover {
            border-color: var(--primary-tint-strong);
            color: var(--primary);
            background: var(--primary-tint);
        }
        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* ===== Notice List ===== */
        .notice-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .notice-card {
            display: flex;
            gap: 20px;
            padding: 18px;
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-slow);
        }
        .notice-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary-tint-strong);
        }
        .notice-thumb {
            flex-shrink: 0;
            width: 180px;
            border-radius: var(--radius);
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-slate);
        }
        .notice-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .notice-card:hover .notice-thumb img {
            transform: scale(1.04);
        }
        .notice-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 8px;
            min-width: 0;
        }
        .notice-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-weak);
            flex-wrap: wrap;
        }
        .notice-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 6px;
            background: var(--primary-tint);
            color: var(--primary);
            white-space: nowrap;
        }
        .notice-tag.tag-update {
            background: var(--accent-tint);
            color: #0369A1;
        }
        .notice-tag.tag-maintain {
            background: #FEF3C7;
            color: #92400E;
        }
        .notice-tag.tag-rule {
            background: #FCE7F3;
            color: #9D174D;
        }
        .notice-tag.tag-service {
            background: #DCFCE7;
            color: #166534;
        }
        .notice-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-heading);
            margin: 0;
            line-height: 1.45;
        }
        .notice-title a {
            color: var(--text-heading);
            text-decoration: none;
            transition: color var(--transition);
        }
        .notice-title a:hover {
            color: var(--primary);
        }
        .notice-summary {
            font-size: 14px;
            color: var(--text-body);
            margin: 0;
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .notice-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }
        .notice-link:hover {
            color: var(--primary-dark);
            gap: 6px;
        }

        /* ===== Stats Bar ===== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            padding: 28px;
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
        }
        .stat-item {
            text-align: center;
            padding: 10px;
            border-radius: var(--radius);
            background: var(--bg);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: var(--primary-tint);
        }
        .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* ===== Related Articles ===== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }
        .related-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-slow);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .related-thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-slate);
        }
        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .related-card:hover .related-thumb img {
            transform: scale(1.05);
        }
        .related-content {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }
        .related-date {
            font-size: 12px;
            color: var(--text-weak);
        }
        .related-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            margin: 0;
            line-height: 1.45;
        }
        .related-title a {
            color: var(--text-heading);
            text-decoration: none;
            transition: color var(--transition);
        }
        .related-title a:hover {
            color: var(--primary);
        }
        .related-desc {
            font-size: 13px;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }
        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: var(--primary-tint-strong);
        }
        .faq-item.open {
            border-color: var(--primary-tint-strong);
            box-shadow: var(--shadow-card-hover);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg-slate);
            transition: all var(--transition);
            font-size: 12px;
            color: var(--text-weak);
        }
        .faq-item.open .faq-arrow {
            background: var(--primary-tint);
            color: var(--primary);
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 240px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-panel {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--accent) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            box-shadow: var(--shadow-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            pointer-events: none;
        }
        .cta-panel::after {
            content: '';
            position: absolute;
            bottom: -50%;
            left: -10%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            pointer-events: none;
        }
        .cta-panel .cta-title {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
            position: relative;
            z-index: 1;
            letter-spacing: -0.3px;
        }
        .cta-panel .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 auto 24px;
            max-width: 540px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }
        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary-dark);
            background: #fff;
            border-radius: 10px;
            text-decoration: none;
            transition: all var(--transition);
            position: relative;
            z-index: 1;
            box-shadow: 0 4px 16px rgba(15, 23, 42, 0.25);
        }
        .btn-primary-lg:hover {
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 23, 42, 0.3);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark-2) 100%);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            font-weight: 700;
            color: #fff;
        }
        .footer-logo .logo-text {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
            max-width: 320px;
        }
        .footer-heading {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: 8px;
        }
        .footer-col a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom .beian {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .footer-bottom .beian a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-bottom .beian a:hover {
            color: #fff;
        }

        /* ===== Mobile Nav Drawer ===== */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 23, 42, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-slow);
        }
        .mobile-nav-overlay.show {
            display: block;
            opacity: 1;
        }
        .mobile-nav-panel {
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            height: 100vh;
            background: #FFFFFF;
            z-index: 999;
            padding: 20px;
            box-shadow: -8px 0 32px rgba(15, 23, 42, 0.2);
            transition: right var(--transition-slow);
            overflow-y: auto;
        }
        .mobile-nav-panel.open {
            right: 0;
        }
        .mobile-nav-close {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-slate);
            font-size: 16px;
            color: var(--text-heading);
            margin-bottom: 16px;
            transition: all var(--transition);
        }
        .mobile-nav-close:hover {
            background: var(--primary-tint);
            color: var(--primary);
        }
        .mobile-nav-panel .nav-chip {
            width: 100%;
            margin-bottom: 6px;
            padding: 12px 16px;
            font-size: 15px;
        }
        .mobile-nav-panel .nav-cta {
            width: 100%;
            justify-content: center;
            margin-top: 12px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .header-panel {
                padding: 10px 14px;
            }
            .nav-chip {
                padding: 7px 11px;
                font-size: 13px;
                gap: 4px;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .notice-thumb {
                width: 150px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            :root {
                --section-pad: 32px;
                --section-pad-mobile: 32px;
            }
            .site-header {
                padding: 10px 0;
            }
            .header-panel {
                padding: 8px 12px;
                gap: 10px;
            }
            .header-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .page-head h1 {
                font-size: 26px;
            }
            .notice-card {
                flex-direction: column;
                gap: 14px;
            }
            .notice-thumb {
                width: 100%;
                aspect-ratio: 16 / 9;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 20px;
                gap: 10px;
            }
            .stat-number {
                font-size: 22px;
            }
            .cta-panel {
                padding: 32px 20px;
            }
            .cta-panel .cta-title {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-title {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
                padding: 16px;
            }
            .stat-number {
                font-size: 20px;
            }
            .stat-label {
                font-size: 12px;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tag {
                padding: 6px 12px;
                font-size: 12px;
            }
            .page-head {
                padding: 20px 0 12px;
            }
            .page-head h1 {
                font-size: 22px;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .notice-title {
                font-size: 15px;
            }
            .notice-summary {
                font-size: 13px;
                -webkit-line-clamp: 3;
            }
        }

        /* ===== Focus Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        .btn-primary-lg:focus-visible,
        .nav-chip:focus-visible,
        .nav-cta:focus-visible,
        .filter-tag:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }