/* roulang page: index */
:root {
            --bg: #F6F9FC;
            --surface: #FFFFFF;
            --surface-soft: #EEF6FC;
            --primary: #0B6BA8;
            --primary-hover: #085A8A;
            --accent-cyan: #0FA3B1;
            --accent-green: #2E9E5B;
            --accent-orange: #F59E0B;
            --text-main: #0F172A;
            --text-secondary: #1E293B;
            --text-muted: #64748B;
            --border: #DCE5F0;
            --radius: 16px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(15, 23, 42, 0.12);
            --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

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

        body {
            font-family: var(--font-family);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 15px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, opacity 0.2s ease;
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            color: inherit;
            transition: all 0.25s ease;
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .section-pad {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }

        @media (min-width: 1024px) {
            .section-pad {
                padding-top: 4.5rem;
                padding-bottom: 4.5rem;
            }
        }

        @media (min-width: 1280px) {
            .section-pad {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }

        .nav-link {
            position: relative;
            padding: 0.375rem 0.75rem;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all 0.2s ease;
        }

        .nav-link:hover {
            color: var(--primary);
            background-color: rgba(11, 107, 168, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background-color: rgba(11, 107, 168, 0.08);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 9999px;
            background-color: var(--primary);
        }

        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(11, 107, 168, 0.35);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            line-height: 1.4;
            letter-spacing: 0.025em;
        }

        .badge-blue {
            background-color: rgba(11, 107, 168, 0.1);
            color: var(--primary);
        }

        .badge-green {
            background-color: rgba(46, 158, 91, 0.12);
            color: var(--accent-green);
        }

        .badge-orange {
            background-color: rgba(245, 158, 11, 0.14);
            color: #B45309;
        }

        .badge-cyan {
            background-color: rgba(15, 163, 177, 0.12);
            color: var(--accent-cyan);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.75rem;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.9375rem;
            line-height: 1.5;
            white-space: nowrap;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }

        .btn:active {
            transform: scale(0.97);
        }

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 107, 168, 0.25);
            color: #fff;
        }

        .btn-orange {
            background-color: var(--accent-orange);
            color: #1E293B;
            border-color: var(--accent-orange);
        }

        .btn-orange:hover {
            background-color: #D97706;
            border-color: #D97706;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--border);
            background-color: var(--surface);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background-color: rgba(11, 107, 168, 0.04);
            color: var(--primary-hover);
            transform: translateY(-1px);
        }

        .btn-ghost {
            background-color: transparent;
            color: var(--text-secondary);
            border-color: transparent;
            padding-left: 0.5rem;
            padding-right: 0.5rem;
        }

        .btn-ghost:hover {
            color: var(--primary);
            background-color: rgba(11, 107, 168, 0.06);
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 0.75rem;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 1.875rem;
                line-height: 1.35;
            }
        }

        .section-subtitle {
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 720px;
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        @media (min-width: 768px) {
            .section-header {
                margin-bottom: 3rem;
            }
        }

        .hero-countdown-unit {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            background: rgba(11, 107, 168, 0.08);
            border-radius: 8px;
            padding: 0.35rem 0.75rem;
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            font-size: 1rem;
            color: var(--primary);
            min-width: 2.5rem;
            justify-content: center;
        }

        .faq-details {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            overflow: hidden;
        }

        .faq-details:hover {
            border-color: rgba(11, 107, 168, 0.35);
            box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05);
        }

        .faq-details summary {
            list-style: none;
            cursor: pointer;
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            font-size: 0.9375rem;
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            user-select: none;
            transition: color 0.2s ease;
        }

        .faq-details summary::-webkit-details-marker {
            display: none;
        }

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

        .faq-details summary .faq-icon {
            transition: transform 0.3s ease;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .faq-details[open] summary .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-details .faq-answer {
            padding: 0 1.5rem 1.25rem;
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .data-bar {
            height: 8px;
            border-radius: 9999px;
            background-color: var(--border);
            overflow: hidden;
        }

        .data-bar-fill {
            height: 100%;
            border-radius: 9999px;
            background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
            transition: width 0.6s ease;
        }

        .table-compare {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.875rem;
        }

        .table-compare th,
        .table-compare td {
            padding: 0.875rem 1rem;
            border: 1px solid var(--border);
            text-align: left;
            vertical-align: top;
            line-height: 1.6;
        }

        .table-compare th {
            background-color: var(--surface-soft);
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .table-compare tr:nth-child(even) td {
            background-color: rgba(246, 249, 252, 0.6);
        }

        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 60;
            background-color: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 24px rgba(15, 23, 42, 0.08);
            padding: 0.75rem 0;
            transition: transform 0.35s ease;
        }

        .floating-cta.hidden-bar {
            transform: translateY(110%);
        }

        .floating-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }

        @media (max-width: 640px) {
            .floating-cta-inner {
                flex-direction: column;
                align-items: stretch;
                gap: 0.5rem;
            }
        }

        .mobile-menu {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
        }

        .mobile-menu.open {
            max-height: 350px;
            padding-bottom: 1rem;
        }

        .mobile-menu a {
            display: block;
            padding: 0.75rem 1.5rem;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-left: 3px solid transparent;
            transition: all 0.2s ease;
        }

        .mobile-menu a:hover {
            background-color: rgba(11, 107, 168, 0.05);
            color: var(--primary);
            border-left-color: var(--primary);
        }

        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
            border-left-color: var(--primary);
            background-color: rgba(11, 107, 168, 0.05);
        }

        .footer-link {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.75);
            transition: color 0.2s ease;
        }

        .footer-link:hover {
            color: #ffffff;
        }

        .bg-soft-pattern {
            background-color: var(--surface-soft);
            position: relative;
        }

        .tick-label {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.025em;
        }

        .step-indicator {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .step-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--border);
            transition: all 0.2s ease;
        }

        .step-dot.active {
            background-color: var(--primary);
            width: 12px;
            height: 12px;
        }

        .step-dot.done {
            background-color: var(--accent-green);
        }

        .step-line {
            width: 36px;
            height: 2px;
            background-color: var(--border);
            border-radius: 9999px;
            transition: background-color 0.2s ease;
        }

        .step-line.active {
            background-color: var(--primary);
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.4rem 1rem;
            border-radius: 9999px;
            background-color: var(--surface);
            border: 1px solid var(--border);
            font-size: 0.8125rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.2s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: rgba(11, 107, 168, 0.04);
        }

        .filter-chip.active {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .form-input {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid var(--border);
            border-radius: 10px;
            background-color: var(--surface);
            font-size: 0.875rem;
            color: var(--text-main);
            transition: all 0.2s ease;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(11, 107, 168, 0.15);
        }

        .form-input::placeholder {
            color: var(--text-muted);
            opacity: 0.7;
        }

        .hero-bg-overlay {
            background: linear-gradient(135deg, rgba(246, 249, 252, 0.92) 0%, rgba(238, 246, 252, 0.88) 50%, rgba(246, 249, 252, 0.94) 100%);
            position: absolute;
            inset: 0;
            z-index: 1;
        }

        .hero-bg-image {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-size: cover;
            background-position: center;
        }

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

        .tabular {
            font-variant-numeric: tabular-nums;
        }

        .num-display {
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            letter-spacing: -0.01em;
        }

/* roulang page: category2 */
:root {
            --bg: #F6F9FC;
            --surface: #FFFFFF;
            --surface-soft: #EEF6FC;
            --primary: #0B6BA8;
            --primary-hover: #085A8A;
            --accent-cyan: #0FA3B1;
            --accent-green: #2E9E5B;
            --accent-orange: #F59E0B;
            --text-main: #0F172A;
            --text-secondary: #1E293B;
            --text-muted: #64748B;
            --border: #DCE5F0;
            --radius: 16px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(15, 23, 42, 0.12);
            --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 15px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, opacity 0.2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            color: inherit;
            transition: all 0.25s ease;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section-pad {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }
        @media (min-width: 768px) {
            .section-pad {
                padding-top: 4.5rem;
                padding-bottom: 4.5rem;
            }
        }
        @media (min-width: 1024px) {
            .section-pad {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }
        .nav-link {
            position: relative;
            padding: 0.375rem 0.75rem;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all 0.2s ease;
        }
        .nav-link:hover {
            color: var(--primary);
            background-color: rgba(11, 107, 168, 0.06);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background-color: rgba(11, 107, 168, 0.08);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 9999px;
            background-color: var(--primary);
        }
        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(11, 107, 168, 0.35);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            line-height: 1.4;
            letter-spacing: 0.025em;
        }
        .badge-blue {
            background-color: rgba(11, 107, 168, 0.1);
            color: var(--primary);
        }
        .badge-green {
            background-color: rgba(46, 158, 91, 0.12);
            color: var(--accent-green);
        }
        .badge-orange {
            background-color: rgba(245, 158, 11, 0.14);
            color: #B45309;
        }
        .badge-cyan {
            background-color: rgba(15, 163, 177, 0.12);
            color: var(--accent-cyan);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.75rem;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.9375rem;
            line-height: 1.5;
            white-space: nowrap;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }
        .btn:active {
            transform: scale(0.97);
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 107, 168, 0.25);
            color: #fff;
        }
        .btn-orange {
            background-color: var(--accent-orange);
            color: #1E293B;
            border-color: var(--accent-orange);
        }
        .btn-orange:hover {
            background-color: #D97706;
            border-color: #D97706;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
        }
        .btn-outline {
            background-color: var(--surface);
            color: var(--primary);
            border-color: var(--border);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            background-color: rgba(11, 107, 168, 0.04);
            color: var(--primary-hover);
            transform: translateY(-1px);
        }
        .btn-ghost {
            background: transparent;
            color: var(--text-secondary);
            border-color: transparent;
        }
        .btn-ghost:hover {
            background: rgba(11, 107, 168, 0.06);
            color: var(--primary);
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.875rem;
            transition: color 0.2s ease;
        }
        .footer-link:hover {
            color: #fff;
        }
        .filter-chip {
            padding: 0.4rem 1rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 500;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-secondary);
            transition: all 0.2s ease;
        }
        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(11, 107, 168, 0.04);
        }
        .filter-chip.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .article-card {
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .article-card .card-body {
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .article-card h3 {
            font-weight: 600;
            font-size: 1.125rem;
            color: var(--text-main);
        }
        .article-card p {
            flex-grow: 1;
            font-size: 0.875rem;
            color: var(--text-muted);
        }
        .hot-card {
            position: relative;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
            transition: all 0.25s ease;
        }
        .hot-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .rank-num {
            font-size: 2.5rem;
            font-weight: 700;
            color: rgba(11, 107, 168, 0.15);
            position: absolute;
            top: 0.5rem;
            right: 1rem;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            box-shadow: 0 2px 8px rgba(15, 23, 42, 0.03);
            padding: 1rem 1.25rem;
        }
        .faq-item summary {
            cursor: pointer;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: space-between;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .fa-chevron-down {
            transition: transform 0.2s ease;
            color: var(--text-muted);
        }
        .faq-item[open] summary .fa-chevron-down {
            transform: rotate(180deg);
        }
        .faq-item p {
            margin-top: 0.75rem;
            color: var(--text-muted);
            font-size: 0.9375rem;
            line-height: 1.7;
        }
        .step-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 1.5rem 1.25rem;
            height: 100%;
            transition: all 0.25s ease;
            box-shadow: 0 4px 12px rgba(15, 23, 42, 0.03);
        }
        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(11, 107, 168, 0.3);
        }
        .stat-label {
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--text-muted);
        }
        .stat-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.2;
        }

/* roulang page: category1 */
:root {
      --bg: #F6F9FC;
      --surface: #FFFFFF;
      --surface-soft: #EEF6FC;
      --primary: #0B6BA8;
      --primary-hover: #085A8A;
      --accent-cyan: #0FA3B1;
      --accent-green: #2E9E5B;
      --accent-orange: #F59E0B;
      --text-main: #0F172A;
      --text-secondary: #1E293B;
      --text-muted: #64748B;
      --border: #DCE5F0;
      --radius: 16px;
      --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
      --shadow-card-hover: 0 12px 32px rgba(15, 23, 42, 0.12);
      --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: var(--font-family);
      background-color: var(--bg);
      color: var(--text-main);
      line-height: 1.7;
      font-size: 15px;
      min-height: 100vh;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, opacity 0.2s ease;
    }

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

    button {
      font-family: inherit;
      cursor: pointer;
      border: none;
      background: none;
      font-size: inherit;
      color: inherit;
      transition: all 0.25s ease;
    }

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

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }

    @media (min-width: 768px) {
      .container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
      }
    }

    @media (min-width: 1024px) {
      .container {
        padding-left: 2rem;
        padding-right: 2rem;
      }
    }

    .section-pad {
      padding-top: 3rem;
      padding-bottom: 3rem;
    }

    @media (min-width: 768px) {
      .section-pad {
        padding-top: 4.5rem;
        padding-bottom: 4.5rem;
      }
    }

    @media (min-width: 1024px) {
      .section-pad {
        padding-top: 6rem;
        padding-bottom: 6rem;
      }
    }

    .site-header {
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      z-index: 50;
    }

    .logo-mark {
      width: 36px;
      height: 36px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
      font-size: 13px;
      letter-spacing: -0.03em;
    }

    .nav-link {
      position: relative;
      padding: 0.375rem 0.75rem;
      font-size: 0.875rem;
      font-weight: 500;
      color: var(--text-secondary);
      border-radius: 8px;
      transition: all 0.2s ease;
    }

    .nav-link:hover {
      color: var(--primary);
      background-color: rgba(11, 107, 168, 0.06);
    }

    .nav-link.active {
      color: var(--primary);
      font-weight: 600;
      background-color: rgba(11, 107, 168, 0.08);
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 50%;
      transform: translateX(-50%);
      width: 20px;
      height: 3px;
      border-radius: 9999px;
      background-color: var(--primary);
    }

    .nav-link-mobile {
      display: block;
      padding: 0.7rem 0.85rem;
      border-radius: 12px;
      font-weight: 500;
      color: var(--text-secondary);
      transition: all 0.2s ease;
    }

    .nav-link-mobile:hover {
      color: var(--primary);
      background-color: rgba(11, 107, 168, 0.06);
    }

    .nav-link-mobile.active {
      color: var(--primary);
      font-weight: 700;
      background-color: rgba(11, 107, 168, 0.08);
    }

    .card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow-card);
      transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
      overflow: hidden;
    }

    .card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-2px);
      border-color: rgba(11, 107, 168, 0.35);
    }

    .card-cover {
      position: relative;
    }

    .card-cover img {
      aspect-ratio: 16 / 10;
      object-fit: cover;
      width: 100%;
    }

    .card-body {
      padding: 1rem 1.15rem 1.15rem;
    }

    .card-title {
      font-size: 1.05rem;
      line-height: 1.5;
      font-weight: 700;
      color: var(--text-main);
      margin: 0.65rem 0 0.35rem;
    }

    .card-summary {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 0.25rem;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-size: 0.75rem;
      font-weight: 600;
      line-height: 1.4;
      letter-spacing: 0.025em;
    }

    .badge-blue {
      background-color: rgba(11, 107, 168, 0.1);
      color: var(--primary);
    }

    .badge-green {
      background-color: rgba(46, 158, 91, 0.12);
      color: var(--accent-green);
    }

    .badge-orange {
      background-color: rgba(245, 158, 11, 0.14);
      color: #B45309;
    }

    .badge-cyan {
      background-color: rgba(15, 163, 177, 0.12);
      color: var(--accent-cyan);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.75rem 1.65rem;
      border-radius: 12px;
      font-weight: 600;
      font-size: 0.9375rem;
      line-height: 1.5;
      white-space: nowrap;
      transition: all 0.25s ease;
      border: 1px solid transparent;
    }

    .btn:active {
      transform: scale(0.97);
    }

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

    .btn-primary:hover {
      background-color: var(--primary-hover);
      border-color: var(--primary-hover);
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(11, 107, 168, 0.25);
      color: #fff;
    }

    .btn-orange {
      background-color: var(--accent-orange);
      color: #1E293B;
      border-color: var(--accent-orange);
    }

    .btn-orange:hover {
      background-color: #D97706;
      border-color: #D97706;
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
    }

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

    .btn-outline:hover {
      border-color: var(--primary);
      background-color: rgba(11, 107, 168, 0.04);
      color: var(--primary-hover);
      transform: translateY(-1px);
    }

    .btn-ghost {
      background-color: transparent;
      color: var(--text-secondary);
      border-color: transparent;
    }

    .btn-ghost:hover {
      background-color: rgba(11, 107, 168, 0.06);
      color: var(--primary);
    }

    .filter-btn {
      padding: 0.45rem 0.85rem;
      border-radius: 10px;
      border: 1px solid var(--border);
      background: var(--surface);
      color: var(--text-secondary);
      font-size: 0.8125rem;
      font-weight: 500;
      white-space: nowrap;
      transition: all 0.2s ease;
    }

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

    .filter-btn.active {
      background: var(--primary);
      border-color: var(--primary);
      color: #fff;
    }

    .form-input,
    .form-select {
      padding: 0.65rem 1rem;
      border-radius: 12px;
      border: 1px solid var(--border);
      background: var(--surface);
      color: var(--text-main);
      outline: none;
      width: 100%;
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .form-input:focus,
    .form-select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(11, 107, 168, 0.12);
    }

    .input-icon {
      position: relative;
      display: block;
    }

    .input-icon i {
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-muted);
      font-size: 0.875rem;
      pointer-events: none;
    }

    .input-icon .form-input {
      padding-left: 2.25rem;
    }

    .section-kicker {
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--primary);
      margin-bottom: 0.5rem;
    }

    .section-title {
      font-size: 1.65rem;
      line-height: 1.3;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.02em;
    }

    @media (min-width: 768px) {
      .section-title {
        font-size: 1.9rem;
      }
    }

    .stat-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 1.25rem;
      box-shadow: var(--shadow-card);
      transition: all 0.25s ease;
    }

    .stat-card:hover {
      border-color: rgba(11, 107, 168, 0.35);
      transform: translateY(-2px);
    }

    .stat-label {
      font-size: 0.75rem;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }

    .stat-value {
      display: block;
      font-size: 2rem;
      line-height: 1.2;
      font-weight: 800;
      color: var(--primary);
      font-variant-numeric: tabular-nums;
      margin-top: 0.2rem;
    }

    .stat-note {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-top: 0.25rem;
      display: block;
    }

    .hot-item {
      display: flex;
      gap: 1rem;
      padding: 1.15rem;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
    }

    .hot-item:hover {
      border-color: rgba(11, 107, 168, 0.35);
      transform: translateY(-2px);
      box-shadow: var(--shadow-card-hover);
    }

    .hot-num {
      font-size: 2rem;
      line-height: 1;
      font-weight: 800;
      color: rgba(11, 107, 168, 0.25);
      min-width: 3rem;
      font-variant-numeric: tabular-nums;
    }

    .topic-card {
      display: flex;
      align-items: flex-start;
      gap: 0.9rem;
      padding: 1.1rem 1.2rem;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 14px;
      transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
    }

    .topic-card:hover {
      border-color: rgba(11, 107, 168, 0.35);
      transform: translateY(-2px);
      box-shadow: var(--shadow-card-hover);
    }

    .faq-item {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 14px;
      overflow: hidden;
      box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
    }

    .faq-item summary {
      padding: 1rem 1.25rem;
      cursor: pointer;
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-weight: 600;
      color: var(--text-main);
      gap: 1rem;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: "\f078";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      color: var(--primary);
      transition: transform 0.25s ease;
      font-size: 0.875rem;
    }

    .faq-item[open] summary::after {
      transform: rotate(180deg);
    }

    .faq-content {
      padding: 0 1.25rem 1.25rem;
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.75;
    }

    .data-status {
      display: inline-flex;
      align-items: center;
      gap: 0.3rem;
      font-size: 0.75rem;
      font-weight: 600;
    }

    .status-confirmed {
      color: var(--accent-green);
    }

    .status-live {
      color: var(--accent-orange);
    }

    .status-pending {
      color: var(--text-muted);
    }

    .footer-link {
      color: rgba(255, 255, 255, 0.65);
      font-size: 0.875rem;
      transition: color 0.2s ease;
    }

    .footer-link:hover {
      color: #ffffff;
    }

/* roulang page: category3 */
:root {
            --bg: #F6F9FC;
            --surface: #FFFFFF;
            --surface-soft: #EEF6FC;
            --primary: #0B6BA8;
            --primary-hover: #085A8A;
            --accent-cyan: #0FA3B1;
            --accent-green: #2E9E5B;
            --accent-orange: #F59E0B;
            --text-main: #0F172A;
            --text-secondary: #1E293B;
            --text-muted: #64748B;
            --border: #DCE5F0;
            --radius: 16px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(15, 23, 42, 0.12);
            --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 15px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease, opacity .2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            color: inherit;
            transition: all .25s ease;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        .section-pad {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }
        @media (min-width: 768px) {
            .section-pad {
                padding-top: 4.5rem;
                padding-bottom: 4.5rem;
            }
        }
        @media (min-width: 1024px) {
            .section-pad {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }
        .nav-link {
            position: relative;
            padding: .375rem .75rem;
            font-size: .875rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all .2s ease;
        }
        .nav-link:hover {
            color: var(--primary);
            background-color: rgba(11, 107, 168, .06);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background-color: rgba(11, 107, 168, .08);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 9999px;
            background-color: var(--primary);
        }
        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(11, 107, 168, .35);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: .25rem;
            padding: .25rem .75rem;
            border-radius: 9999px;
            font-size: .75rem;
            font-weight: 600;
            line-height: 1.4;
            letter-spacing: .025em;
        }
        .badge-blue {
            background-color: rgba(11, 107, 168, .1);
            color: var(--primary);
        }
        .badge-green {
            background-color: rgba(46, 158, 91, .12);
            color: var(--accent-green);
        }
        .badge-orange {
            background-color: rgba(245, 158, 11, .14);
            color: #B45309;
        }
        .badge-cyan {
            background-color: rgba(15, 163, 177, .12);
            color: var(--accent-cyan);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            padding: .75rem 1.75rem;
            border-radius: 12px;
            font-weight: 600;
            font-size: .9375rem;
            line-height: 1.5;
            white-space: nowrap;
            transition: all .25s ease;
            border: 1px solid transparent;
        }
        .btn:active {
            transform: scale(.97);
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 107, 168, .25);
            color: #fff;
        }
        .btn-orange {
            background-color: var(--accent-orange);
            color: #1E293B;
            border-color: var(--accent-orange);
        }
        .btn-orange:hover {
            background-color: #D97706;
            border-color: #D97706;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, .3);
        }
        .btn-outline {
            background-color: var(--surface);
            color: var(--primary);
            border-color: var(--border);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            background-color: rgba(11, 107, 168, .04);
            color: var(--primary-hover);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: .5rem 1.1rem;
            font-size: .8125rem;
            border-radius: 10px;
        }
        .footer-link {
            color: rgba(255, 255, 255, .55);
            font-size: .875rem;
            transition: color .2s ease;
        }
        .footer-link:hover {
            color: #fff;
        }
        .breadcrumb-link {
            color: rgba(255, 255, 255, .7);
            font-size: .875rem;
            transition: color .2s ease;
        }
        .breadcrumb-link:hover {
            color: #fff;
        }
        .breadcrumb-current {
            color: rgba(255, 255, 255, .95);
            font-size: .875rem;
            font-weight: 500;
        }
        .breadcrumb-sep {
            color: rgba(255, 255, 255, .4);
            margin: 0 .5rem;
            font-size: .8125rem;
        }
        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: .375rem;
            padding: .4rem 1rem;
            border-radius: 9999px;
            font-size: .8125rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--surface);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all .2s ease;
            white-space: nowrap;
        }
        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-chip.active {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: var(--surface);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all .3s ease;
        }
        .faq-item + .faq-item {
            margin-top: .75rem;
        }
        .faq-item[open] {
            border-color: rgba(11, 107, 168, .35);
            box-shadow: var(--shadow-card-hover);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 1.25rem;
            font-weight: 600;
            font-size: .9375rem;
            color: var(--text-secondary);
            cursor: pointer;
            list-style: none;
            user-select: none;
            transition: color .2s ease;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--primary);
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            color: var(--text-muted);
            transition: transform .3s ease, color .3s ease;
            font-size: .875rem;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-body {
            padding: 0 1.25rem 1.25rem;
            color: var(--text-muted);
            font-size: .875rem;
            line-height: 1.8;
        }
        .version-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
        }
        .version-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(11, 107, 168, .35);
        }
        .version-item .version-cover {
            position: relative;
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--surface-soft);
        }
        .version-item .version-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .version-item:hover .version-cover img {
            transform: scale(1.03);
        }
        .version-item .version-tag {
            position: absolute;
            top: .75rem;
            left: .75rem;
        }
        .version-item .version-body {
            padding: 1.15rem 1.25rem 1.25rem;
        }
        .version-item .version-title {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: .5rem;
            transition: color .2s ease;
        }
        .version-item .version-title:hover {
            color: var(--primary);
        }
        .version-item .version-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: .75rem;
            font-size: .8125rem;
            color: var(--text-muted);
        }
        .version-item .version-meta i {
            color: var(--primary);
            font-size: .75rem;
        }
        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: .75rem;
        }
        .section-subtitle {
            font-size: .9375rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 2rem;
            max-width: 720px;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
        }
        .divider {
            height: 1px;
            background: var(--border);
            margin: 2rem 0;
        }
        .scroll-top-btn {
            position: fixed;
            bottom: 1.5rem;
            right: 1.5rem;
            width: 2.75rem;
            height: 2.75rem;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 20px rgba(11, 107, 168, .3);
            z-index: 40;
            opacity: 0;
            pointer-events: none;
            transition: all .3s ease;
        }
        .scroll-top-btn.visible {
            opacity: 1;
            pointer-events: auto;
        }
        .scroll-top-btn:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: 280px;
            max-width: 85vw;
            background: var(--surface);
            z-index: 100;
            box-shadow: -8px 0 32px rgba(15, 23, 42, .12);
            padding: 1.25rem 1.5rem;
            flex-direction: column;
            gap: .5rem;
            transition: transform .3s ease;
            transform: translateX(100%);
        }
        .mobile-menu-panel.open {
            transform: translateX(0);
        }
        .mobile-menu-panel .mobile-nav-link {
            padding: .7rem 1rem;
            border-radius: 10px;
            font-weight: 500;
            font-size: .9375rem;
            color: var(--text-secondary);
            transition: all .2s ease;
        }
        .mobile-menu-panel .mobile-nav-link:hover {
            background: rgba(11, 107, 168, .06);
            color: var(--primary);
        }
        .mobile-menu-panel .mobile-nav-link.active {
            background: rgba(11, 107, 168, .08);
            color: var(--primary);
            font-weight: 600;
        }
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, .5);
            z-index: 99;
            opacity: 0;
            transition: opacity .3s ease;
            pointer-events: none;
        }
        .mobile-menu-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }
        @media (max-width: 1023px) {
            .mobile-menu-panel { display: flex; }
            .mobile-menu-overlay { display: block; }
        }

/* roulang page: category4 */
:root {
            --bg: #F6F9FC;
            --surface: #FFFFFF;
            --surface-soft: #EEF6FC;
            --primary: #0B6BA8;
            --primary-hover: #085A8A;
            --accent-cyan: #0FA3B1;
            --accent-green: #2E9E5B;
            --accent-orange: #F59E0B;
            --text-main: #0F172A;
            --text-secondary: #1E293B;
            --text-muted: #64748B;
            --border: #DCE5F0;
            --radius: 16px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(15, 23, 42, 0.12);
            --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        body {
            font-family: var(--font-family);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 15px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, opacity 0.2s ease;
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            color: inherit;
            transition: all 0.25s ease;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 640px) {
            .container {
                padding-left: 1.75rem;
                padding-right: 1.75rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .section-pad {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }

        @media (min-width: 768px) {
            .section-pad {
                padding-top: 4.5rem;
                padding-bottom: 4.5rem;
            }
        }

        @media (min-width: 1024px) {
            .section-pad {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }

        .nav-link {
            position: relative;
            padding: 0.375rem 0.75rem;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all 0.2s ease;
        }

        .nav-link:hover {
            color: var(--primary);
            background-color: rgba(11, 107, 168, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background-color: rgba(11, 107, 168, 0.08);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 9999px;
            background-color: var(--primary);
        }

        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(11, 107, 168, 0.35);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            line-height: 1.4;
            letter-spacing: 0.025em;
        }

        .badge-blue {
            background-color: rgba(11, 107, 168, 0.1);
            color: var(--primary);
        }

        .badge-green {
            background-color: rgba(46, 158, 91, 0.12);
            color: var(--accent-green);
        }

        .badge-orange {
            background-color: rgba(245, 158, 11, 0.14);
            color: #B45309;
        }

        .badge-cyan {
            background-color: rgba(15, 163, 177, 0.12);
            color: var(--accent-cyan);
        }

        .badge-amber {
            background-color: rgba(245, 158, 11, 0.15);
            color: #B45309;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.75rem;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.9375rem;
            line-height: 1.5;
            white-space: nowrap;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }

        .btn:active {
            transform: scale(0.97);
        }

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 107, 168, 0.25);
            color: #fff;
        }

        .btn-orange {
            background-color: var(--accent-orange);
            color: #1E293B;
            border-color: var(--accent-orange);
        }

        .btn-orange:hover {
            background-color: #D97706;
            border-color: #D97706;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
        }

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

        .btn-outline:hover {
            border-color: var(--primary);
            background-color: rgba(11, 107, 168, 0.04);
            color: var(--primary-hover);
            transform: translateY(-1px);
        }

        .btn-ghost {
            background-color: transparent;
            color: var(--text-muted);
            border-color: transparent;
            padding: 0.5rem 1rem;
        }

        .btn-ghost:hover {
            background-color: rgba(100, 116, 139, 0.08);
            color: var(--text-secondary);
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.01em;
            line-height: 1.3;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 1.75rem;
            }
        }

        .section-subtitle {
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-top: 0.5rem;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8125rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

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

        .breadcrumb .separator {
            color: #94A3B8;
            font-size: 0.75rem;
        }

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

        .filter-toolbar {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 1rem 1.25rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.75rem;
            justify-content: space-between;
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .filter-btn {
            padding: 0.45rem 1rem;
            border-radius: 10px;
            font-size: 0.8125rem;
            font-weight: 500;
            color: var(--text-muted);
            background: transparent;
            border: 1px solid var(--border);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: rgba(11, 107, 168, 0.04);
        }

        .filter-btn.active {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .search-input-wrapper {
            display: flex;
            align-items: center;
            background: var(--surface-soft);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 0.45rem 0.75rem;
            gap: 0.5rem;
            min-width: 200px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .search-input-wrapper:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(11, 107, 168, 0.1);
        }

        .search-input-wrapper input {
            border: none;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: 0.875rem;
            color: var(--text-main);
        }

        .search-input-wrapper input::placeholder {
            color: #94A3B8;
        }

        .search-input-wrapper i {
            color: var(--text-muted);
            font-size: 0.875rem;
        }

        .list-item-card {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            align-items: flex-start;
        }

        .list-item-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(11, 107, 168, 0.35);
            transform: translateY(-2px);
        }

        .list-item-card .thumb {
            flex-shrink: 0;
            width: 96px;
            height: 96px;
            border-radius: 12px;
            overflow: hidden;
            background: var(--surface-soft);
            position: relative;
        }

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

        .list-item-card .content {
            flex: 1;
            min-width: 0;
        }

        .list-item-card .content h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.35rem;
            line-height: 1.4;
        }

        .list-item-card .content p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0.5rem;
        }

        .list-item-card .meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.75rem;
            color: #94A3B8;
        }

        .list-item-card .meta i {
            font-size: 0.7rem;
        }

        .featured-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(11, 107, 168, 0.35);
        }

        .featured-card .featured-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

        .featured-card .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .featured-card .featured-body {
            padding: 1.25rem;
        }

        .featured-card .featured-body h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }

        .featured-card .featured-body p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        .faq-item {
            border: 1px solid var(--border);
            background: var(--surface);
            border-radius: 14px;
            overflow: hidden;
            transition: all 0.25s ease;
            margin-bottom: 0.75rem;
        }

        .faq-item summary {
            padding: 1rem 1.25rem;
            font-weight: 600;
            font-size: 0.9375rem;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            list-style: none;
            transition: color 0.2s ease;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.75rem;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item[open] summary {
            color: var(--primary);
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item .faq-answer {
            padding: 0 1.25rem 1.1rem;
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
            font-size: 0.875rem;
        }

        .footer-link:hover {
            color: #fff;
        }

        .section-divider {
            border-top: 1px solid var(--border);
            margin: 0;
        }

        .safety-ribbon {
            background: linear-gradient(135deg, rgba(11, 107, 168, 0.05), rgba(15, 163, 177, 0.05));
            border: 1px solid rgba(11, 107, 168, 0.15);
            border-radius: var(--radius);
            padding: 1.5rem;
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            transition: all 0.3s ease;
        }

        .safety-ribbon:hover {
            border-color: rgba(11, 107, 168, 0.35);
            background: linear-gradient(135deg, rgba(11, 107, 168, 0.08), rgba(15, 163, 177, 0.08));
        }

        .safety-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            background: rgba(11, 107, 168, 0.12);
            color: var(--primary);
        }

        .safety-icon.green {
            background: rgba(46, 158, 91, 0.12);
            color: var(--accent-green);
        }

        .safety-icon.cyan {
            background: rgba(15, 163, 177, 0.12);
            color: var(--accent-cyan);
        }

        .safety-icon.orange {
            background: rgba(245, 158, 11, 0.15);
            color: #B45309;
        }

        .safety-stat {
            text-align: center;
            padding: 1.5rem 1rem;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

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

        .safety-stat .number {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.02em;
        }

        .safety-stat .label {
            font-size: 0.8125rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        @media (max-width: 768px) {
            .list-item-card {
                flex-direction: column;
                gap: 0.75rem;
            }

            .list-item-card .thumb {
                width: 100%;
                height: 140px;
            }

            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
            }

            .filter-group {
                overflow-x: auto;
                flex-wrap: nowrap;
                padding-bottom: 0.25rem;
            }

            .search-input-wrapper {
                min-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .section-title {
                font-size: 1.35rem;
            }

            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .safety-ribbon {
                flex-direction: column;
                gap: 0.75rem;
            }
        }