/* roulang page: index */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #DCE6F8;
            --primary-bg: #EFF4FF;
            --green: #16A34A;
            --orange: #F97316;
            --red: #DC2626;
            --bg: #F8FAFC;
            --white: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 4px 16px rgba(2, 6, 23, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(2, 6, 23, 0.10);
            --shadow-emphasis: 0 0 0 1px rgba(37, 99, 235, 0.25), 0 8px 28px rgba(37, 99, 235, 0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }

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

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

        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            padding-bottom: 72px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
            position: relative;
            padding-left: 1rem;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.25em;
            bottom: 0.25em;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 2rem;
            padding-left: 1rem;
            max-width: 680px;
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            min-height: 68px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-desktop::-webkit-scrollbar {
            display: none;
        }

        .nav-desktop a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.7rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .nav-desktop a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

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

        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            left: 0.7rem;
            right: 0.7rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* Mobile Bottom Tab */
        .mobile-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 0.4rem 0.5rem calc(0.4rem + var(--safe-bottom));
            display: flex;
            justify-content: space-around;
            align-items: center;
            gap: 0.25rem;
            box-shadow: 0 -4px 16px rgba(2, 6, 23, 0.06);
        }

        .mobile-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.15rem;
            font-size: 0.65rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 0.35rem 0.4rem;
            border-radius: 8px;
            transition: var(--transition);
            flex: 1;
            text-align: center;
            min-width: 0;
        }

        .mobile-tab a i {
            font-size: 1.1rem;
            line-height: 1;
        }

        .mobile-tab a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-tab a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.72rem 1.6rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            line-height: 1.5;
            white-space: nowrap;
        }

        .btn:active {
            transform: scale(0.98);
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background: var(--primary-bg);
            color: var(--primary);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.08);
        }

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

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

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

        .btn-lg {
            padding: 0.9rem 2.2rem;
            font-size: 1.05rem;
            border-radius: 12px;
        }

        .btn-sm {
            padding: 0.5rem 1.1rem;
            font-size: 0.85rem;
            border-radius: 8px;
        }

        /* Cards */
        .card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }

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

        .card-emphasis {
            box-shadow: var(--shadow-emphasis);
            border: 1px solid rgba(37, 99, 235, 0.3);
        }

        .card-emphasis:hover {
            box-shadow: 0 12px 32px rgba(37, 99, 235, 0.18);
            border-color: var(--primary);
        }

        /* Badges */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            line-height: 1.6;
            background: var(--primary-bg);
            color: var(--primary);
            white-space: nowrap;
        }

        .badge-green {
            background: #ECFDF5;
            color: var(--green);
        }

        .badge-orange {
            background: #FFF7ED;
            color: var(--orange);
        }

        .badge-red {
            background: #FEF2F2;
            color: var(--red);
        }

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

        /* Hero KPI Cards - MOBA style with angled corners */
        .kpi-card {
            background: var(--white);
            border-radius: 10px;
            padding: 1.25rem 1.15rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            position: relative;
            clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
        }

        .kpi-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(37, 99, 235, 0.3);
            transform: translateY(-2px);
        }

        .kpi-card .kpi-value {
            font-size: 2.3rem;
            font-weight: 800;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.02em;
            line-height: 1.2;
            color: var(--text);
        }

        .kpi-card .kpi-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .kpi-card .kpi-trend {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--green);
        }

        .kpi-card .kpi-trend.down {
            color: var(--red);
        }

        /* Service Matrix */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            grid-template-rows: auto;
            gap: 1.25rem;
            align-items: stretch;
        }

        .matrix-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 1.5rem 1.35rem;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            min-height: 100%;
        }

        .matrix-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(37, 99, 235, 0.25);
            transform: translateY(-2px);
        }

        .matrix-card .matrix-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            background: var(--primary-bg);
            color: var(--primary);
            flex-shrink: 0;
        }

        .matrix-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.45;
        }

        .matrix-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .matrix-card .mini-chart {
            display: flex;
            align-items: flex-end;
            gap: 0.25rem;
            height: 48px;
            margin-top: 0.4rem;
        }

        .mini-chart span {
            flex: 1;
            background: var(--primary-light);
            border-radius: 3px 3px 0 0;
            min-height: 8px;
            transition: var(--transition);
        }

        .mini-chart span:nth-child(1) {
            height: 28%;
        }
        .mini-chart span:nth-child(2) {
            height: 45%;
        }
        .mini-chart span:nth-child(3) {
            height: 38%;
        }
        .mini-chart span:nth-child(4) {
            height: 62%;
        }
        .mini-chart span:nth-child(5) {
            height: 55%;
        }
        .mini-chart span:nth-child(6) {
            height: 78%;
        }
        .mini-chart span:nth-child(7) {
            height: 90%;
            background: var(--primary);
        }

        .matrix-card .vs-block {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--primary-bg);
            border-radius: 8px;
            padding: 0.7rem 0.85rem;
            margin-top: 0.3rem;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text);
        }

        .vs-block .vs-tag {
            background: var(--primary);
            color: #fff;
            padding: 0.15rem 0.5rem;
            border-radius: 5px;
            font-size: 0.7rem;
            font-weight: 700;
        }

        .highlight-badge {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 0.3rem 0.75rem;
            border-radius: 6px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.02em;
        }

        /* Comparison */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            align-items: stretch;
        }

        .compare-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 1.75rem 1.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .compare-card.weak {
            opacity: 0.75;
            border-color: var(--border);
            background: #FBFCFE;
        }

        .compare-card.strong {
            border: 1.5px solid var(--primary);
            box-shadow: var(--shadow-emphasis);
            background: #F0F6FF;
            position: relative;
        }

        .compare-card.strong::before {
            content: '推荐';
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--primary);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }

        .compare-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .compare-card ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

        .compare-card ul li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .compare-card ul li i {
            flex-shrink: 0;
            margin-top: 0.2rem;
            font-size: 0.85rem;
        }

        .compare-card.strong ul li i {
            color: var(--primary);
        }

        .compare-card.weak ul li i {
            color: var(--text-muted);
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }

        .step-item {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }

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

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 1rem;
        }

        .step-item h3 {
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .step-item p {
            font-size: 0.87rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* News */
        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 1.5rem;
            align-items: start;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .news-item {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 1.1rem 1.25rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            gap: 1rem;
            align-items: flex-start;
        }

        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(37, 99, 235, 0.25);
        }

        .news-item .news-icon {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.95rem;
        }

        .news-item h4 {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 0.3rem;
        }

        .news-item p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .news-side {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            position: sticky;
            top: 88px;
        }

        .news-side h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .news-side ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

        .news-side ul li {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
            padding: 0.5rem 0.7rem;
            border-radius: 8px;
            transition: var(--transition);
            cursor: pointer;
        }

        .news-side ul li:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .news-side ul li i {
            font-size: 0.8rem;
            color: var(--primary);
        }

        /* Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }

        .review-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 1.4rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

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

        .review-stars {
            color: #F59E0B;
            font-size: 0.8rem;
            letter-spacing: 0.1em;
        }

        .review-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex-grow: 1;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text);
        }

        .review-author span {
            font-weight: 400;
            color: var(--text-muted);
            font-size: 0.75rem;
        }

        /* Plans Comparison */
        .plans-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
            align-items: stretch;
        }

        .plan-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 1.75rem 1.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
            position: relative;
        }

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

        .plan-card.featured {
            border: 1.5px solid var(--primary);
            box-shadow: var(--shadow-emphasis);
            background: #F7FAFF;
        }

        .plan-card.featured::before {
            content: '最多选择';
            position: absolute;
            top: -10px;
            right: 16px;
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.2rem 0.65rem;
            border-radius: 999px;
        }

        .plan-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
        }

        .plan-card .plan-price {
            font-size: 1.7rem;
            font-weight: 800;
            font-variant-numeric: tabular-nums;
            color: var(--primary);
        }

        .plan-card ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            margin: 0.5rem 0 0.7rem;
        }

        .plan-card ul li {
            font-size: 0.83rem;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
            line-height: 1.6;
        }

        .plan-card ul li i {
            color: var(--green);
            font-size: 0.8rem;
            margin-top: 0.25rem;
            flex-shrink: 0;
        }

        /* Security */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .security-item {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 1.3rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
        }

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

        .security-item i {
            font-size: 1.5rem;
            color: var(--primary);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .security-item h3 {
            font-size: 0.92rem;
            font-weight: 700;
        }

        .security-item p {
            font-size: 0.78rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Brand */
        .brand-section {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 2rem 1.75rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }

        .brand-section p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        /* Partners */
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 0.9rem;
        }

        .partner-item {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 0.9rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
            align-items: center;
        }

        .partner-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(37, 99, 235, 0.25);
        }

        .partner-item span {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text);
        }

        .partner-item small {
            font-size: 0.68rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-item.active {
            background: var(--primary-bg);
            border-radius: 8px;
            border-bottom-color: transparent;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 1rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            transition: var(--transition);
            user-select: none;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 1rem;
            font-size: 0.87rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 1rem 1.1rem;
        }

        /* CTA Form */
        .cta-section {
            background: #0F172A;
            border-radius: 16px;
            padding: 2.5rem 2rem;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(22, 163, 74, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: center;
        }

        .cta-content h2 {
            color: #fff;
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

        .cta-content p {
            color: #94A3B8;
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 0.9rem;
        }

        .cta-form .form-row {
            display: flex;
            gap: 0.9rem;
            flex-wrap: wrap;
        }

        .cta-form input,
        .cta-form select {
            flex: 1;
            min-width: 140px;
            padding: 0.7rem 1rem;
            border-radius: 8px;
            border: 1px solid #334155;
            background: #1E293B;
            color: #E2E8F0;
            font-size: 0.9rem;
            transition: var(--transition);
            appearance: none;
            -webkit-appearance: none;
        }

        .cta-form input:focus,
        .cta-form select:focus {
            outline: 2px solid var(--primary);
            outline-offset: 0;
            border-color: var(--primary);
            background: #1E293B;
        }

        .cta-form input::placeholder {
            color: #64748B;
        }

        .cta-form select option {
            background: #fff;
            color: var(--text);
        }

        .cta-form .btn {
            background: #fff;
            color: var(--text);
            font-weight: 700;
            border: none;
        }

        .cta-form .btn:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        /* Footer */
        .site-footer {
            background: #FFFFFF;
            border-top: 1px solid var(--border);
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-brand .logo-link {
            color: var(--text);
            margin-bottom: 0.8rem;
            display: inline-flex;
        }

        .footer-brand p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 0.9rem;
            color: var(--text);
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul li a {
            font-size: 0.82rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 1.25rem;
            text-align: center;
            font-size: 0.75rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .footer-bottom a {
            color: var(--text-secondary);
            font-weight: 500;
        }

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

        .footer-bottom .sep {
            margin: 0 0.4rem;
            color: var(--border);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .plans-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .mobile-tab {
                display: flex;
            }
            body {
                padding-bottom: calc(72px + var(--safe-bottom));
            }
            .nav-desktop {
                display: none;
            }
            .site-header {
                min-height: 58px;
            }
            .logo-link {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.85rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .section-subtitle {
                font-size: 0.85rem;
                margin-bottom: 1.5rem;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-side {
                position: static;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .plans-grid {
                grid-template-columns: 1fr;
            }
            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
            .cta-content {
                grid-template-columns: 1fr;
            }
            .cta-form .form-row {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .kpi-card .kpi-value {
                font-size: 1.8rem;
            }
            .hero-kpis {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.7rem;
            }
            .btn-lg {
                padding: 0.7rem 1.5rem;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .kpi-card {
                padding: 0.9rem 0.8rem;
            }
            .kpi-card .kpi-value {
                font-size: 1.5rem;
            }
            .kpi-card .kpi-label {
                font-size: 0.68rem;
            }
            .comparison-grid {
                gap: 1rem;
            }
            .compare-card {
                padding: 1.2rem 1rem;
            }
            .matrix-card {
                padding: 1.2rem 1rem;
            }
            .cta-section {
                padding: 1.75rem 1.25rem;
            }
        }

        @media (min-width: 769px) {
            .mobile-tab {
                display: none;
            }
        }

        /* Hero specific */
        .hero-section {
            position: relative;
            background: linear-gradient(180deg, #F0F6FF 0%, #F8FAFC 100%);
            padding: 3rem 0 3.5rem;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.webp') no-repeat right center;
            background-size: cover;
            opacity: 0.09;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 2.5rem;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-kpis {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .hero-kpis .kpi-card:nth-child(1) {
            grid-column: span 2;
        }

        /* Utility classes */
        .text-primary {
            color: var(--primary);
        }
        .text-green {
            color: var(--green);
        }
        .text-orange {
            color: var(--orange);
        }
        .text-red {
            color: var(--red);
        }
        .font-tabular {
            font-variant-numeric: tabular-nums;
        }
        .mt-sm {
            margin-top: 0.5rem;
        }
        .mt-md {
            margin-top: 1rem;
        }
        .mt-lg {
            margin-top: 1.5rem;
        }
        .mb-sm {
            margin-bottom: 0.5rem;
        }
        .mb-md {
            margin-bottom: 1rem;
        }
        .mb-lg {
            margin-bottom: 1.5rem;
        }
        .gap-md {
            gap: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .w-full {
            width: 100%;
        }

/* roulang page: category2 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #DCE6F8;
            --primary-bg: #EFF4FF;
            --green: #16A34A;
            --orange: #F97316;
            --red: #DC2626;
            --bg: #F8FAFC;
            --white: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 4px 16px rgba(2, 6, 23, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(2, 6, 23, 0.10);
            --shadow-emphasis: 0 0 0 1px rgba(37, 99, 235, 0.25), 0 8px 28px rgba(37, 99, 235, 0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            padding-bottom: 72px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
            position: relative;
            padding-left: 1rem;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.25em;
            bottom: 0.25em;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 2rem;
            padding-left: 1rem;
            max-width: 680px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            min-height: 68px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-desktop::-webkit-scrollbar {
            display: none;
        }
        .nav-desktop a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.7rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .nav-desktop a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-desktop a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            left: 0.7rem;
            right: 0.7rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .mobile-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 0.4rem 0.5rem calc(0.4rem + var(--safe-bottom));
            justify-content: space-around;
            align-items: center;
            box-shadow: 0 -4px 16px rgba(2, 6, 23, 0.06);
        }
        .mobile-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.2rem;
            font-size: 0.65rem;
            color: var(--text-muted);
            font-weight: 500;
            padding: 0.3rem 0.5rem;
            border-radius: 8px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .mobile-tab a i {
            font-size: 1.15rem;
            line-height: 1;
        }
        .mobile-tab a.active {
            color: var(--primary);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.65rem 1.5rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.92rem;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            background: var(--primary-bg);
            color: var(--primary);
            border: 1px solid var(--primary-light);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 500;
            line-height: 1.4;
        }
        .badge-green {
            background: #F0FDF4;
            color: var(--green);
        }
        .badge-red {
            background: #FEF2F2;
            color: var(--red);
        }
        .badge-orange {
            background: #FFF7ED;
            color: var(--orange);
        }
        .badge-blue {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .badge-gray {
            background: #F1F5F9;
            color: var(--text-muted);
        }
        .progress-bar {
            height: 8px;
            background: #E2E8F0;
            border-radius: 999px;
            overflow: hidden;
            margin-top: 0.5rem;
        }
        .progress-fill {
            height: 100%;
            border-radius: 999px;
            transition: width 0.6s ease;
        }
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer .footer-brand .logo-link {
            color: #fff;
            margin-bottom: 1rem;
        }
        .site-footer .footer-brand .logo-link .logo-icon {
            background: var(--primary);
        }
        .site-footer .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: #94A3B8;
            max-width: 360px;
        }
        .site-footer .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 0.8rem;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .site-footer .footer-col ul li a {
            font-size: 0.85rem;
            color: #94A3B8;
            transition: var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 1.5rem;
            font-size: 0.8rem;
            color: #64748B;
            text-align: center;
        }
        .site-footer .footer-bottom .sep {
            margin: 0 0.5rem;
        }
        .site-footer .footer-bottom a {
            color: #94A3B8;
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        .vs-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 1.25rem;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .vs-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-light);
        }
        .vs-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            border-radius: 2px;
        }
        .vs-card.high-confidence::before {
            background: var(--green);
        }
        .vs-card.medium-confidence::before {
            background: var(--orange);
        }
        .vs-card.low-confidence::before {
            background: var(--red);
        }
        .team-block {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 0.5rem 0;
        }
        .team-name {
            font-weight: 600;
            font-size: 0.95rem;
        }
        .team-strength {
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .vs-divider {
            text-align: center;
            font-weight: 700;
            color: var(--text-muted);
            font-size: 0.85rem;
            padding: 0.25rem 0;
            letter-spacing: 0.15em;
        }
        .confidence-meter {
            margin-top: 0.75rem;
        }
        .confidence-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 0.25rem;
        }
        .stat-num {
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--text);
            line-height: 1.2;
        }
        .fan-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 1rem;
        }
        .prediction-hero {
            background: linear-gradient(135deg, var(--primary-bg) 0%, #F8FAFC 60%, #FFFFFF 100%);
            border-bottom: 1px solid var(--border-light);
            padding: 3rem 0 2rem;
            position: relative;
            overflow: hidden;
        }
        .prediction-hero::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        @media (max-width: 768px) {
            .mobile-tab {
                display: flex;
            }
            .nav-desktop {
                display: none;
            }
            body {
                padding-bottom: 100px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .site-footer .footer-brand {
                grid-column: span 2;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .fan-grid {
                grid-template-columns: 1fr;
            }
            .prediction-hero {
                padding: 2rem 0 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-brand {
                grid-column: span 1;
            }
            .container {
                padding: 0 14px;
            }
            .team-block {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.25rem;
            }
            .team-name {
                font-size: 0.9rem;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .nav-desktop a {
                padding: 0.4rem 0.55rem;
                font-size: 0.82rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #DCE6F8;
            --primary-bg: #EFF4FF;
            --green: #16A34A;
            --orange: #F97316;
            --red: #DC2626;
            --bg: #F8FAFC;
            --white: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 4px 16px rgba(2, 6, 23, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(2, 6, 23, 0.10);
            --shadow-emphasis: 0 0 0 1px rgba(37, 99, 235, 0.25), 0 8px 28px rgba(37, 99, 235, 0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }

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

        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            padding-bottom: 72px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
            position: relative;
            padding-left: 1rem;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.25em;
            bottom: 0.25em;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 2rem;
            padding-left: 1rem;
            max-width: 680px;
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            min-height: 68px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-desktop::-webkit-scrollbar {
            display: none;
        }

        .nav-desktop a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.7rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .nav-desktop a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

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

        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            left: 0.7rem;
            right: 0.7rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* Mobile Bottom Tab */
        .mobile-tab {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 0.4rem 0.5rem calc(0.4rem + var(--safe-bottom));
            display: none;
            justify-content: space-around;
            align-items: center;
            gap: 0.25rem;
            box-shadow: 0 -4px 16px rgba(2, 6, 23, 0.06);
        }

        .mobile-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 0.65rem;
            color: var(--text-muted);
            gap: 0.15rem;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            transition: var(--transition);
            min-width: 48px;
        }

        .mobile-tab a i {
            font-size: 1.1rem;
        }

        .mobile-tab a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-tab a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

        /* Hero Dashboard Banner */
        .dashboard-hero {
            position: relative;
            background: linear-gradient(135deg, #0F172A 0%, #1E3A5F 40%, #1D4ED8 100%);
            border-radius: 0 0 24px 24px;
            overflow: hidden;
            padding: 4rem 0 3rem;
            color: #fff;
            margin-bottom: 2.5rem;
        }

        .dashboard-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }

        .dashboard-hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.3) 0%, rgba(15, 23, 42, 0.6) 100%);
            pointer-events: none;
        }

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

        .dashboard-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(37, 99, 235, 0.35);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 0.4rem 1rem;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            margin-bottom: 1.2rem;
            backdrop-filter: blur(4px);
        }

        .dashboard-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }

        .dashboard-hero-sub {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 2rem;
        }

        .dashboard-hero-metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .dashboard-metric-card {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 12px;
            padding: 1.2rem 1.5rem;
            backdrop-filter: blur(8px);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .dashboard-metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, #60A5FA, #2563EB);
        }

        .dashboard-metric-card:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.35);
            transform: translateY(-2px);
        }

        .dashboard-metric-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .dashboard-metric-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.25rem;
        }

        /* Layered Data Cards */
        .data-layer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .data-layer-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 1.5rem;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }

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

        .data-layer-card--featured {
            border: 1px solid var(--primary-light);
            box-shadow: var(--shadow-emphasis);
            background: linear-gradient(180deg, #FFFFFF 0%, #F0F6FF 100%);
        }

        .data-layer-card--featured .data-layer-card-badge {
            background: var(--primary);
            color: #fff;
        }

        .data-layer-card-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 0.3rem 0.8rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 0.8rem;
        }

        .data-layer-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.5rem;
        }

        .data-layer-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1rem;
        }

        .data-mini-chart {
            display: flex;
            align-items: flex-end;
            gap: 0.3rem;
            height: 48px;
            margin: 0.8rem 0;
        }

        .data-mini-chart span {
            flex: 1;
            background: var(--primary-light);
            border-radius: 3px 3px 0 0;
            min-height: 6px;
            transition: var(--transition);
        }

        .data-mini-chart span:hover {
            background: var(--primary);
        }

        .data-mini-chart span:nth-child(odd) {
            background: #BFD6F5;
        }

        .data-mini-chart span:nth-child(odd):hover {
            background: var(--primary-dark);
        }

        .data-mini-chart span.highlight {
            background: var(--primary);
        }

        .data-mini-chart span.low {
            background: var(--red);
            opacity: 0.5;
        }

        .data-mini-chart span.green {
            background: var(--green);
        }

        .data-mini-chart span.orange {
            background: var(--orange);
        }

        /* Data Interpretation List */
        .data-interp-section {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 2rem;
            margin-bottom: 2.5rem;
        }

        .data-interp-list {
            display: grid;
            gap: 0;
            margin-top: 1rem;
        }

        .data-interp-item {
            display: flex;
            align-items: flex-start;
            gap: 1.2rem;
            padding: 1rem 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .data-interp-item:hover {
            background: var(--primary-bg);
            border-radius: 8px;
            padding-left: 0.8rem;
            padding-right: 0.8rem;
        }

        .data-interp-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-bg);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
            margin-top: 0.2rem;
        }

        .data-interp-content h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.3rem;
        }

        .data-interp-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .data-interp-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.2rem;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            margin-left: 0.5rem;
        }

        .data-interp-tag--green {
            background: #DCFCE7;
            color: #16A34A;
        }

        .data-interp-tag--orange {
            background: #FEF3C7;
            color: #D97706;
        }

        .data-interp-tag--red {
            background: #FEE2E2;
            color: #DC2626;
        }

        .data-interp-tag--blue {
            background: #DBEAFE;
            color: #2563EB;
        }

        /* Team Comparison Block */
        .team-compare-block {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 1rem;
            align-items: center;
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 1.5rem;
            margin-bottom: 2.5rem;
        }

        .team-compare-side {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem;
            border-radius: 10px;
            transition: var(--transition);
        }

        .team-compare-side--home {
            background: var(--primary-bg);
        }

        .team-compare-side--home:hover {
            background: var(--primary-light);
        }

        .team-compare-side--away {
            background: #FEF2F2;
        }

        .team-compare-side--away:hover {
            background: #FEE2E2;
        }

        .team-compare-name {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            margin-bottom: 0.3rem;
        }

        .team-compare-stat {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .team-compare-vs {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-muted);
            text-align: center;
            min-width: 60px;
        }

        .team-strength-bar {
            height: 6px;
            background: var(--border-light);
            border-radius: 999px;
            margin-top: 0.6rem;
            overflow: hidden;
        }

        .team-strength-bar-fill {
            height: 100%;
            border-radius: 999px;
            transition: var(--transition);
        }

        .team-strength-bar-fill--home {
            background: var(--primary);
            width: 68%;
        }

        .team-strength-bar-fill--away {
            background: var(--red);
            width: 47%;
        }

        /* FAQ Custom */
        .faq-section {
            margin-bottom: 2.5rem;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 1rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            transition: var(--transition);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary);
            background: var(--primary-bg);
            border-radius: 8px;
        }

        .faq-icon {
            color: var(--text-muted);
            transition: var(--transition);
            font-size: 0.9rem;
            flex-shrink: 0;
            margin-left: 1rem;
        }

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

        .faq-item.open .faq-question {
            color: var(--primary);
            background: var(--primary-bg);
            border-radius: 8px;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 1rem;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding-bottom: 1.2rem;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.8;
            padding-left: 0.5rem;
        }

        /* CTA Form */
        .cta-form-section {
            background: linear-gradient(135deg, #0F172A 0%, #1E3A5F 60%, #1D4ED8 100%);
            border-radius: 20px;
            padding: 3rem 2rem;
            color: #fff;
            position: relative;
            overflow: hidden;
            margin-bottom: 2rem;
        }

        .cta-form-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            pointer-events: none;
        }

        .cta-form-section .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: center;
        }

        .cta-form-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.8rem;
            line-height: 1.4;
        }

        .cta-form-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 1.2rem;
        }

        .cta-form-highlight {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(22, 163, 74, 0.3);
            border: 1px solid rgba(22, 163, 74, 0.5);
            color: #fff;
            padding: 0.3rem 0.9rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 1.2rem;
        }

        .cta-form-wrapper {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 16px;
            padding: 1.8rem;
        }

        .cta-form-group {
            margin-bottom: 1rem;
        }

        .cta-form-group label {
            display: block;
            font-size: 0.8rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 0.4rem;
        }

        .cta-form-wrapper input,
        .cta-form-wrapper select {
            width: 100%;
            padding: 0.7rem 1rem;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 8px;
            color: #fff;
            font-size: 0.9rem;
            transition: var(--transition);
            -webkit-appearance: none;
            appearance: none;
        }

        .cta-form-wrapper input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form-wrapper input:focus,
        .cta-form-wrapper select:focus {
            border-color: #60A5FA;
            background: rgba(255, 255, 255, 0.2);
        }

        .cta-form-wrapper select option {
            background: #1E3A5F;
            color: #fff;
        }

        .btn-primary-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            font-size: 0.9rem;
            padding: 0.8rem 1.8rem;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
            text-align: center;
        }

        .btn-primary-cta:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(255, 255, 255, 0.25);
        }

        .btn-primary-cta:active {
            transform: scale(0.98);
        }

        /* Footer */
        .site-footer {
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 3rem 0 1.5rem;
            margin-top: 1rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-brand p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-top: 0.8rem;
            margin-bottom: 0;
        }

        .footer-brand .logo-link {
            font-size: 1.1rem;
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.8rem;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }

        .footer-col a {
            font-size: 0.82rem;
            color: var(--text-muted);
            transition: var(--transition);
            display: inline-block;
        }

        .footer-col a:hover {
            color: var(--primary);
            transform: translateX(2px);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 1.2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
        }

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

        .footer-bottom .sep {
            margin: 0 0.5rem;
            color: var(--border);
        }

        /* Button variants */
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-1px);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .dashboard-hero-metrics {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-layer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-form-section .container {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
            .team-compare-block {
                grid-template-columns: 1fr auto 1fr;
                gap: 0.5rem;
            }
            .team-compare-side {
                flex-direction: column;
                text-align: center;
                gap: 0.5rem;
                padding: 0.8rem;
            }
            .team-compare-vs {
                font-size: 1.1rem;
                min-width: 40px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: 80px;
            }
            .nav-desktop {
                display: none;
            }
            .mobile-tab {
                display: flex;
            }
            .dashboard-hero {
                padding: 2.5rem 0 2rem;
                border-radius: 0 0 16px 16px;
            }
            .dashboard-hero-metrics {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.7rem;
            }
            .dashboard-metric-number {
                font-size: 1.6rem;
            }
            .dashboard-metric-card {
                padding: 0.9rem 1rem;
            }
            .data-layer-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .data-interp-section {
                padding: 1.2rem;
            }
            .team-compare-block {
                grid-template-columns: 1fr;
                gap: 0.8rem;
            }
            .team-compare-side {
                flex-direction: row;
                text-align: left;
                gap: 0.8rem;
                padding: 0.8rem;
            }
            .team-compare-vs {
                font-size: 1rem;
            }
            .cta-form-section {
                padding: 2rem 1.2rem;
            }
            .cta-form-wrapper {
                padding: 1.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .section-title {
                font-size: 1.35rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .dashboard-hero h1 {
                font-size: 1.5rem;
            }
            .dashboard-metric-number {
                font-size: 1.3rem;
            }
            .dashboard-metric-label {
                font-size: 0.7rem;
            }
            .data-interp-item {
                flex-direction: column;
                gap: 0.6rem;
            }
            .cta-form-title {
                font-size: 1.3rem;
            }
            .btn-primary-cta {
                font-size: 0.82rem;
                padding: 0.7rem 1.2rem;
            }
            .mobile-tab a {
                font-size: 0.58rem;
                min-width: 40px;
                padding: 0.2rem 0.3rem;
            }
            .mobile-tab a i {
                font-size: 0.95rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #DCE6F8;
            --primary-bg: #EFF4FF;
            --green: #16A34A;
            --orange: #F97316;
            --red: #DC2626;
            --bg: #F8FAFC;
            --white: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 4px 16px rgba(2, 6, 23, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(2, 6, 23, 0.10);
            --shadow-emphasis: 0 0 0 1px rgba(37, 99, 235, 0.25), 0 8px 28px rgba(37, 99, 235, 0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }

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

        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            padding-bottom: 72px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
            position: relative;
            padding-left: 1rem;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.25em;
            bottom: 0.25em;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 2rem;
            padding-left: 1rem;
            max-width: 680px;
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            min-height: 68px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-desktop::-webkit-scrollbar {
            display: none;
        }

        .nav-desktop a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.7rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .nav-desktop a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

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

        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            left: 0.7rem;
            right: 0.7rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* Mobile Bottom Tab */
        .mobile-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 0.4rem 0.5rem calc(0.4rem + var(--safe-bottom));
            justify-content: space-around;
            align-items: center;
            gap: 0.25rem;
            box-shadow: 0 -4px 16px rgba(2, 6, 23, 0.06);
        }

        .mobile-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            font-size: 0.65rem;
            color: var(--text-muted);
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            transition: var(--transition);
            min-width: 48px;
        }

        .mobile-tab a i {
            font-size: 1.1rem;
        }

        .mobile-tab a.active {
            color: var(--primary);
            font-weight: 600;
        }

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

        /* Hero - Lead Capture Question-Based */
        .hero-lead {
            padding: 4rem 0 3.5rem;
            background: linear-gradient(135deg, #EFF4FF 0%, #F8FAFC 40%, #FFFFFF 100%);
            border-bottom: 1px solid var(--border-light);
        }

        .hero-lead .container {
            display: grid;
            grid-template-columns: 1.15fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .hero-lead-content {
            padding-right: 1rem;
        }

        .hero-pain {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #FEF2F2;
            color: var(--red);
            padding: 0.4rem 1rem;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
            border: 1px solid #FECACA;
        }

        .hero-lead h1 {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

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

        .hero-lead-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 540px;
            margin-bottom: 2rem;
        }

        .hero-lead-stats {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

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

        .hero-stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.02em;
        }

        .hero-stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-lead-form {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 2rem;
            box-shadow: var(--shadow-emphasis);
            border: 1px solid var(--primary-light);
        }

        .hero-lead-form h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.5rem;
        }

        .hero-lead-form p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.25rem;
        }

        .hero-form-row {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            margin-bottom: 1rem;
        }

        .hero-form-row input {
            padding: 0.8rem 1rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            background: var(--bg);
            color: var(--text);
            font-size: 0.95rem;
            transition: var(--transition);
            width: 100%;
        }

        .hero-form-row input::placeholder {
            color: var(--text-muted);
        }

        .hero-form-row input:focus {
            outline: none;
            border-color: var(--primary);
            background: var(--white);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--primary);
            color: #fff;
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(37, 99, 235, 0.2);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--white);
            color: var(--primary);
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid var(--primary-light);
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background: var(--primary-bg);
            border-color: var(--primary);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        /* Expert Cards - Asymmetric Grid */
        .experts-section {
            padding: 4rem 0;
        }

        .experts-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.9fr 1.1fr 0.8fr;
            gap: 1.25rem;
            align-items: start;
        }

        .expert-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 1.5rem;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .expert-card.featured {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-emphasis);
        }

        .expert-card.featured .expert-badge-top {
            position: absolute;
            top: 0;
            right: 0;
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.3rem 0.8rem;
            border-radius: 0 var(--radius-card) 0 var(--radius-card);
            letter-spacing: 0.02em;
        }

        .expert-avatar {
            width: 64px;
            height: 64px;
            border-radius: 12px;
            object-fit: cover;
            margin-bottom: 0.75rem;
            border: 2px solid var(--primary-light);
        }

        .expert-name {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.25rem;
        }

        .expert-role {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 0.75rem;
        }

        .expert-rating {
            display: flex;
            align-items: center;
            gap: 0.35rem;
            margin-bottom: 0.5rem;
        }

        .expert-rating i {
            color: #F59E0B;
            font-size: 0.85rem;
        }

        .expert-rating span {
            font-size: 0.8rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .expert-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.3rem 0.7rem;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.01em;
            transition: var(--transition);
        }

        .badge-green {
            background: #F0FDF4;
            color: var(--green);
            border: 1px solid #BBF7D0;
        }

        .badge-blue {
            background: var(--primary-bg);
            color: var(--primary);
            border: 1px solid var(--primary-light);
        }

        .badge-orange {
            background: #FFF7ED;
            color: var(--orange);
            border: 1px solid #FED7AA;
        }

        .expert-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1rem;
        }

        .expert-stats-row {
            display: flex;
            justify-content: space-between;
            gap: 0.5rem;
            padding-top: 0.75rem;
            border-top: 1px solid var(--border-light);
        }

        .expert-stat {
            text-align: center;
        }

        .expert-stat-number {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            font-variant-numeric: tabular-nums;
        }

        .expert-stat-label {
            font-size: 0.68rem;
            color: var(--text-muted);
        }

        /* Hit Rate Badge Section */
        .rating-section {
            padding: 4rem 0;
            background: var(--white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .rating-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .rating-card {
            background: var(--bg);
            border-radius: var(--radius-card);
            padding: 1.75rem;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .rating-ring {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: conic-gradient(var(--primary) 0% 68.4%, var(--border-light) 68.4% 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            position: relative;
        }

        .rating-ring-inner {
            width: 76px;
            height: 76px;
            border-radius: 50%;
            background: var(--white);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .rating-ring-number {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1;
        }

        .rating-ring-label {
            font-size: 0.62rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .rating-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.5rem;
        }

        .rating-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .rating-card .stars {
            display: flex;
            justify-content: center;
            gap: 0.3rem;
            margin-bottom: 0.5rem;
        }

        .rating-card .stars i {
            color: #F59E0B;
            font-size: 0.95rem;
        }

        /* Recent Performance List */
        .performance-section {
            padding: 4rem 0;
        }

        .performance-list {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
        }

        .performance-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 1.5rem;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .performance-item:hover {
            background: var(--primary-bg);
        }

        .performance-left {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex: 1;
        }

        .performance-match {
            font-weight: 600;
            color: var(--text);
            font-size: 0.92rem;
            white-space: nowrap;
        }

        .performance-result {
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            white-space: nowrap;
        }

        .result-hit {
            background: #F0FDF4;
            color: var(--green);
            border: 1px solid #BBF7D0;
        }

        .result-miss {
            background: #FEF2F2;
            color: var(--red);
            border: 1px solid #FECACA;
        }

        .result-pending {
            background: #FFF7ED;
            color: var(--orange);
            border: 1px solid #FED7AA;
        }

        .performance-expert {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .performance-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        /* Subscribe CTA Section */
        .subscribe-section {
            padding: 4rem 0;
            background: linear-gradient(135deg, #1E3A8A 0%, #1D4ED8 50%, #2563EB 100%);
            border-radius: 20px;
            margin: 0 20px 4rem;
            position: relative;
            overflow: hidden;
        }

        .subscribe-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }

        .subscribe-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }

        .subscribe-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 3rem 2rem;
            position: relative;
            z-index: 1;
        }

        .subscribe-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .subscribe-text h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            line-height: 1.4;
        }

        .subscribe-text p {
            font-size: 0.98rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
        }

        .subscribe-form-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 2rem;
            box-shadow: 0 12px 40px rgba(2, 6, 23, 0.15);
        }

        .subscribe-form-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.5rem;
        }

        .subscribe-form-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1.25rem;
        }

        .subscribe-form-row {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            margin-bottom: 1rem;
        }

        .subscribe-form-row input,
        .subscribe-form-row select {
            padding: 0.8rem 1rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            background: var(--bg);
            color: var(--text);
            font-size: 0.95rem;
            transition: var(--transition);
            width: 100%;
        }

        .subscribe-form-row input:focus,
        .subscribe-form-row select:focus {
            outline: none;
            border-color: var(--primary);
            background: var(--white);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }

        .subscribe-form-row select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748B' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 1rem center;
            padding-right: 2.5rem;
        }

        /* FAQ Section */
        .faq-section {
            padding: 4rem 0;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 1.25rem 0;
            transition: var(--transition);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            cursor: pointer;
            padding: 0.25rem 0;
            font-weight: 600;
            color: var(--text);
            font-size: 1rem;
            transition: var(--transition);
            user-select: none;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: var(--transition);
        }

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease-out;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-top: 1rem;
        }

        /* Footer */
        .site-footer {
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 3rem 0 2rem;
            margin-top: 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand .logo-link {
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 1rem;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            align-items: center;
            text-align: center;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-bottom a {
            color: var(--text-secondary);
            font-size: 0.78rem;
        }

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

        .footer-bottom .sep {
            margin: 0 0.5rem;
            color: var(--border);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-lead .container {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .hero-lead-content {
                padding-right: 0;
                text-align: left;
            }

            .hero-lead h1 {
                font-size: 2.2rem;
            }

            .experts-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.25rem;
            }

            .rating-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 1rem;
            }

            .subscribe-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: 80px;
            }

            .site-header {
                min-height: 60px;
            }

            .nav-desktop {
                display: none;
            }

            .mobile-tab {
                display: flex;
            }

            .hero-lead {
                padding: 2.5rem 0 2rem;
            }

            .hero-lead h1 {
                font-size: 1.8rem;
                line-height: 1.35;
            }

            .hero-lead-desc {
                font-size: 0.95rem;
            }

            .hero-lead-stats {
                gap: 1.5rem;
            }

            .hero-stat-number {
                font-size: 1.6rem;
            }

            .hero-lead-form {
                padding: 1.5rem;
            }

            .experts-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .rating-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .performance-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
                padding: 1rem;
            }

            .performance-left {
                flex-wrap: wrap;
            }

            .subscribe-section {
                margin: 0 12px 3rem;
                border-radius: 14px;
            }

            .subscribe-container {
                padding: 2rem 1.25rem;
            }

            .subscribe-text h2 {
                font-size: 1.4rem;
            }

            .subscribe-form-card {
                padding: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 0.35rem;
                align-items: center;
            }

            .section-title {
                font-size: 1.35rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

            .hero-lead h1 {
                font-size: 1.55rem;
            }

            .hero-lead-stats {
                gap: 1rem;
                flex-wrap: wrap;
            }

            .hero-stat-number {
                font-size: 1.35rem;
            }

            .expert-card {
                padding: 1.25rem;
            }

            .rating-ring {
                width: 84px;
                height: 84px;
            }

            .rating-ring-inner {
                width: 64px;
                height: 64px;
            }

            .rating-ring-number {
                font-size: 1.25rem;
            }

            .btn-primary,
            .btn-secondary {
                padding: 0.7rem 1.2rem;
                font-size: 0.88rem;
                width: 100%;
                justify-content: center;
            }

            .hero-form-row .btn-primary {
                width: 100%;
            }

            .faq-question {
                font-size: 0.92rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #DCE6F8;
            --primary-bg: #EFF4FF;
            --green: #16A34A;
            --orange: #F97316;
            --red: #DC2626;
            --bg: #F8FAFC;
            --white: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 4px 16px rgba(2, 6, 23, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(2, 6, 23, 0.10);
            --shadow-emphasis: 0 0 0 1px rgba(37, 99, 235, 0.25), 0 8px 28px rgba(37, 99, 235, 0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }

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

        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            padding-bottom: 72px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
            position: relative;
            padding-left: 1rem;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.25em;
            bottom: 0.25em;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 2rem;
            padding-left: 1rem;
            max-width: 680px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            min-height: 68px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-desktop::-webkit-scrollbar {
            display: none;
        }

        .nav-desktop a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.7rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .nav-desktop a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

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

        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            left: 0.7rem;
            right: 0.7rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .mobile-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 0.4rem 0.5rem calc(0.4rem + var(--safe-bottom));
            display: flex;
            justify-content: space-around;
            align-items: center;
            gap: 0.25rem;
            box-shadow: 0 -4px 16px rgba(2, 6, 23, 0.06);
        }

        .mobile-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            color: var(--text-muted);
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            min-width: 56px;
            transition: var(--transition);
        }

        .mobile-tab a i {
            font-size: 18px;
            margin-bottom: 2px;
        }

        .mobile-tab a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-tab a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(37, 99, 235, 0.25);
        }

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

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

        .btn:active {
            transform: scale(0.98);
        }

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

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

        .card-emphasis {
            border: 1px solid rgba(37, 99, 235, 0.25);
            box-shadow: var(--shadow-emphasis);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }

        .badge-green {
            background: rgba(22, 163, 74, 0.12);
            color: var(--green);
        }

        .badge-orange {
            background: rgba(249, 115, 22, 0.12);
            color: var(--orange);
        }

        .badge-red {
            background: rgba(220, 38, 38, 0.12);
            color: var(--red);
        }

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

        .badge-gray {
            background: rgba(100, 116, 139, 0.12);
            color: var(--text-muted);
        }

        .site-footer {
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 3rem 0 2rem;
            margin-top: 3rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-top: 1rem;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 1rem;
        }

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

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-light);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom .sep {
            margin: 0 0.5rem;
            color: var(--border);
        }

        .hero-mini {
            background: var(--primary-bg);
            border-bottom: 1px solid var(--border-light);
            padding: 2rem 0 1.5rem;
        }

        .hero-mini h1 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 0.5rem;
            position: relative;
            padding-left: 1rem;
        }

        .hero-mini h1::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.2em;
            bottom: 0.2em;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        .hero-mini p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.75;
            max-width: 720px;
            padding-left: 1rem;
        }

        .trend-card {
            position: relative;
            overflow: hidden;
        }

        .trend-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            border-radius: 0 2px 2px 0;
        }

        .trend-bar {
            display: flex;
            align-items: flex-end;
            gap: 6px;
            height: 80px;
            margin-top: 1rem;
        }

        .trend-bar .bar {
            flex: 1;
            border-radius: 4px 4px 0 0;
            min-width: 12px;
            transition: var(--transition);
            cursor: pointer;
            position: relative;
        }

        .trend-bar .bar:hover {
            opacity: 0.8;
            transform: scaleY(1.05);
            transform-origin: bottom;
        }

        .trend-bar .bar.up {
            background: var(--green);
        }

        .trend-bar .bar.down {
            background: var(--red);
        }

        .trend-bar .bar.flat {
            background: var(--primary-light);
        }

        .risk-strip {
            background: rgba(249, 115, 22, 0.08);
            border-left: 4px solid var(--orange);
            border-radius: 8px;
            padding: 1rem 1.25rem;
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
        }

        .risk-strip i {
            color: var(--orange);
            font-size: 1.25rem;
            margin-top: 0.25rem;
            flex-shrink: 0;
        }

        .risk-strip p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }

        .faq-item.active {
            background: var(--primary-bg);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.25rem 1rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            background: transparent;
            border: none;
            text-align: left;
            transition: var(--transition);
        }

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

        .faq-question .faq-icon {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
            margin-left: 1rem;
        }

        .faq-item.active .faq-question .faq-icon {
            color: var(--primary);
            transform: rotate(45deg);
        }

        .faq-answer {
            display: none;
            padding: 0 1rem 1.25rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

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

        .form-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-emphasis);
            border: 1px solid rgba(37, 99, 235, 0.2);
            padding: 2rem;
        }

        .form-input {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            color: var(--text);
            background: var(--white);
            transition: var(--transition);
        }

        .form-input:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
        }

        .form-select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            color: var(--text);
            background: var(--white);
            transition: var(--transition);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 1rem center;
            cursor: pointer;
        }

        .form-select:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
        }

        @media (min-width: 769px) {
            .mobile-tab {
                display: none !important;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: 88px;
            }

            .site-header {
                min-height: 60px;
            }

            .site-header .container {
                gap: 0.5rem;
            }

            .nav-desktop {
                gap: 0.1rem;
            }

            .nav-desktop a {
                padding: 0.4rem 0.5rem;
                font-size: 0.78rem;
            }

            .mobile-tab {
                display: flex;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .hero-mini {
                padding: 1.5rem 0 1rem;
            }

            .hero-mini h1 {
                font-size: 1.5rem;
            }

            .form-card {
                padding: 1.25rem;
            }

            .section-title {
                font-size: 1.35rem;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }

            .footer-bottom .sep {
                display: none;
            }

            .btn {
                padding: 0.6rem 1rem;
                font-size: 0.9rem;
            }
        }

        @media (min-width: 769px) and (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 1.5rem;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #DCE6F8;
            --primary-bg: #EFF4FF;
            --green: #16A34A;
            --orange: #F97316;
            --red: #DC2626;
            --bg: #F8FAFC;
            --white: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 4px 16px rgba(2, 6, 23, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(2, 6, 23, 0.10);
            --shadow-emphasis: 0 0 0 1px rgba(37, 99, 235, 0.25), 0 8px 28px rgba(37, 99, 235, 0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }

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

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

        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            padding-bottom: 72px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
            position: relative;
            padding-left: 1rem;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.25em;
            bottom: 0.25em;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 2rem;
            padding-left: 1rem;
            max-width: 680px;
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            min-height: 68px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-desktop::-webkit-scrollbar {
            display: none;
        }

        .nav-desktop a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.7rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .nav-desktop a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

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

        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            left: 0.7rem;
            right: 0.7rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* Mobile Bottom Tab */
        .mobile-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 0.4rem 0.5rem calc(0.4rem + var(--safe-bottom));
            display: flex;
            justify-content: space-around;
            align-items: center;
            gap: 0.25rem;
            box-shadow: 0 -4px 16px rgba(2, 6, 23, 0.06);
        }

        .mobile-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.2rem;
            font-size: 0.68rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 0.2rem 0.5rem;
            border-radius: 8px;
            transition: var(--transition);
            min-width: 56px;
            text-align: center;
        }

        .mobile-tab a i {
            font-size: 1.1rem;
        }

        .mobile-tab a:hover,
        .mobile-tab a.active {
            color: var(--primary);
            background: var(--primary-bg);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.7rem 1.6rem;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.5;
            white-space: nowrap;
            text-align: center;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: 0 1px 4px rgba(37, 99, 235, 0.2);
        }

        .btn-secondary {
            background: var(--white);
            color: var(--primary);
            border: 1px solid var(--primary);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.08);
        }

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

        .btn-secondary:active {
            transform: scale(0.98);
        }

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

        /* Cards */
        .strategy-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 1.5rem;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .strategy-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .strategy-card .card-badge {
            position: absolute;
            top: 0.8rem;
            right: 0.8rem;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.25rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }
        .strategy-card .card-icon {
            width: 42px;
            height: 42px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            flex-shrink: 0;
        }
        .strategy-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text);
        }
        .strategy-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Step indicator */
        .step-indicator {
            display: flex;
            align-items: flex-start;
            gap: 0;
            counter-reset: step;
            flex-wrap: wrap;
        }
        .step-item {
            flex: 1;
            min-width: 180px;
            position: relative;
            padding: 0 0.5rem;
            counter-increment: step;
        }
        .step-item::before {
            content: counter(step);
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.8rem;
            position: relative;
            z-index: 2;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
        }
        .step-item::after {
            content: '';
            position: absolute;
            top: 19px;
            left: calc(50% + 19px);
            width: calc(100% - 19px);
            height: 2px;
            background: var(--border);
            z-index: 1;
        }
        .step-item:last-child::after {
            display: none;
        }
        .step-item .step-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text);
            margin-bottom: 0.25rem;
        }
        .step-item .step-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Comparison table */
        .comparison-list {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .comparison-item {
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
            padding: 0.8rem 1rem;
            border-radius: 10px;
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .comparison-item i {
            margin-top: 0.2rem;
            flex-shrink: 0;
        }
        .comparison-item.weak {
            background: #F8FAFC;
            color: var(--text-muted);
            border: 1px solid var(--border-light);
        }
        .comparison-item.weak i {
            color: var(--red);
        }
        .comparison-item.strong {
            background: var(--primary-bg);
            color: var(--text);
            border: 1px solid var(--primary-light);
        }
        .comparison-item.strong i {
            color: var(--green);
        }

        /* Form */
        .form-input {
            width: 100%;
            padding: 0.7rem 1rem;
            font-size: 0.9rem;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text);
            transition: var(--transition);
        }
        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
            outline: none;
        }
        .form-select {
            width: 100%;
            padding: 0.7rem 1rem;
            font-size: 0.9rem;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text);
            transition: var(--transition);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%2364748B'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 0.8rem center;
            padding-right: 2.2rem;
        }
        .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
            outline: none;
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            width: 100%;
            padding: 1rem 0.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: var(--transition);
            line-height: 1.5;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            transition: transform 0.3s ease;
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 0.5rem;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 0 0.5rem 1rem;
        }

        /* Footer */
        .site-footer {
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 2.5rem 0 2rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 2rem;
            margin-bottom: 1.5rem;
        }
        .footer-brand .logo-link {
            font-size: 1.15rem;
            margin-bottom: 0.8rem;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.8rem;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.4rem;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 1.2rem;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .footer-bottom .sep {
            margin: 0 0.5rem;
            color: var(--border);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .step-indicator {
                gap: 1rem;
            }
            .step-item {
                min-width: 140px;
                flex: 0 0 calc(50% - 0.5rem);
            }
            .step-item::after {
                display: none;
            }
        }

        @media (max-width: 768px) {
            body {
                font-size: 15px;
                padding-bottom: 80px;
            }
            .nav-desktop {
                display: none;
            }
            .mobile-tab {
                display: flex;
            }
            .site-header {
                min-height: 60px;
            }
            .site-header .container {
                justify-content: center;
            }
            .logo-link {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .section-subtitle {
                font-size: 0.88rem;
                margin-bottom: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .strategies-grid {
                grid-template-columns: 1fr !important;
            }
            .step-item {
                flex: 0 0 100%;
                min-width: 100%;
            }
            .comparison-card {
                grid-template-columns: 1fr !important;
                gap: 1rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .mobile-tab a {
                font-size: 0.62rem;
                min-width: 48px;
                padding: 0.15rem 0.3rem;
            }
            .mobile-tab a i {
                font-size: 0.95rem;
            }
            .btn {
                padding: 0.6rem 1.2rem;
                font-size: 0.88rem;
            }
        }

/* roulang page: category6 */
/* ===== 设计系统变量 ===== */
        :root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #DCE6F8;
            --primary-bg: #EFF4FF;
            --green: #16A34A;
            --orange: #F97316;
            --red: #DC2626;
            --bg: #F8FAFC;
            --white: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 4px 16px rgba(2, 6, 23, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(2, 6, 23, 0.10);
            --shadow-emphasis: 0 0 0 1px rgba(37, 99, 235, 0.25), 0 8px 28px rgba(37, 99, 235, 0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            padding-bottom: 72px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
            position: relative;
            padding-left: 1rem;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.25em;
            bottom: 0.25em;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 2rem;
            padding-left: 1rem;
            max-width: 680px;
        }

        /* ===== Header Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            min-height: 68px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-desktop::-webkit-scrollbar {
            display: none;
        }
        .nav-desktop a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.7rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .nav-desktop a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-desktop a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            left: 0.7rem;
            right: 0.7rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* ===== Mobile Bottom Tab ===== */
        .mobile-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 0.35rem 0.5rem calc(0.35rem + var(--safe-bottom));
            display: flex;
            justify-content: space-around;
            align-items: center;
            gap: 0.25rem;
            box-shadow: 0 -4px 16px rgba(2, 6, 23, 0.06);
        }
        .mobile-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.15rem;
            font-size: 0.65rem;
            color: var(--text-muted);
            font-weight: 500;
            padding: 0.2rem 0.45rem;
            border-radius: 6px;
            transition: var(--transition);
            white-space: nowrap;
            flex: 1;
            text-align: center;
        }
        .mobile-tab a i {
            font-size: 1.1rem;
        }
        .mobile-tab a:hover {
            color: var(--primary);
        }
        .mobile-tab a.active {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.6rem 1.5rem;
            font-size: 0.92rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.5;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            background: var(--white);
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-bg);
            border-color: var(--primary);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--border);
        }
        .btn-outline:hover {
            background: var(--primary-bg);
            border-color: var(--primary);
        }

        /* ===== Cards ===== */
        .card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-light);
        }
        .card-emphasis {
            box-shadow: var(--shadow-emphasis);
            border-color: var(--primary-light);
        }
        .card-left-accent {
            border-left: 4px solid var(--primary);
        }

        /* ===== Badges & Tags ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.2rem 0.7rem;
            font-size: 0.72rem;
            font-weight: 600;
            border-radius: 999px;
            line-height: 1.5;
            white-space: nowrap;
        }
        .badge-green {
            background: #DCFCE7;
            color: #166534;
        }
        .badge-orange {
            background: #FFEDD5;
            color: #9A3412;
        }
        .badge-red {
            background: #FEE2E2;
            color: #991B1B;
        }
        .badge-blue {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .badge-gray {
            background: #F1F5F9;
            color: #475569;
        }
        .tag-filter {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.4rem 1rem;
            font-size: 0.82rem;
            font-weight: 500;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--white);
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            user-select: none;
        }
        .tag-filter:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-bg);
        }
        .tag-filter.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* ===== Timeline ===== */
        .timeline {
            position: relative;
            padding-left: 2rem;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 0.75rem;
            top: 0.5rem;
            bottom: 0.5rem;
            width: 2px;
            background: var(--border);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 1.5rem;
            padding-left: 1rem;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2rem;
            top: 0.6rem;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--white);
            border: 3px solid var(--primary);
            z-index: 1;
        }
        .timeline-item.high-priority::before {
            border-color: var(--red);
        }
        .timeline-item.medium-priority::before {
            border-color: var(--orange);
        }
        .timeline-item.low-priority::before {
            border-color: var(--green);
        }

        /* ===== Filter Interactive ===== */
        .filter-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }
        .filter-panel {
            transition: var(--transition);
        }
        .filter-panel.filtering .intel-card {
            opacity: 0.35;
            transform: scale(0.97);
            pointer-events: none;
        }
        .filter-panel.filtering .intel-card.match-filter {
            opacity: 1;
            transform: scale(1);
            pointer-events: auto;
        }

        /* ===== Intel Cards ===== */
        .intel-card {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: default;
        }
        .intel-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-light);
        }
        .intel-card .intel-meta {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .intel-card .intel-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 0.4rem;
        }
        .intel-card .intel-desc {
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== Detail Preview ===== */
        .detail-preview {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .detail-preview:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .detail-preview .preview-header {
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .detail-preview .preview-body {
            padding: 1.25rem 1.5rem;
        }
        .preview-stat {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.6rem 0;
            border-bottom: 1px dashed var(--border-light);
        }
        .preview-stat:last-child {
            border-bottom: none;
        }
        .preview-stat .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            min-width: 5rem;
            flex-shrink: 0;
        }
        .preview-stat .stat-value {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text);
        }
        .progress-bar {
            height: 6px;
            border-radius: 3px;
            background: var(--border-light);
            overflow: hidden;
            flex: 1;
        }
        .progress-bar .progress-fill {
            height: 100%;
            border-radius: 3px;
            background: var(--primary);
            transition: width 0.4s ease;
        }
        .progress-fill.green {
            background: var(--green);
        }
        .progress-fill.orange {
            background: var(--orange);
        }
        .progress-fill.red {
            background: var(--red);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, #1E40AF 0%, #2563EB 50%, #3B82F6 100%);
            border-radius: var(--radius-card);
            padding: 3rem 2rem;
            color: #fff;
            position: relative;
            overflow: hidden;
            margin-top: 2rem;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.25rem;
            cursor: pointer;
            user-select: none;
            transition: var(--transition);
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text);
        }
        .faq-question:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 6px;
            font-size: 0.8rem;
            transition: var(--transition);
        }
        .faq-item.active .faq-question .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 1.25rem;
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 0 1.25rem 1.15rem 1.25rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-brand .logo-link {
            margin-bottom: 0.75rem;
        }
        .footer-brand p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.85rem;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul a {
            font-size: 0.82rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 1.25rem;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }
        .footer-bottom p {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin: 0;
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        .sep {
            margin: 0 0.4rem;
            color: var(--border);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
            .footer-grid .footer-col:last-child {
                grid-column: span 2;
            }
        }
        @media (max-width: 768px) {
            body {
                padding-bottom: 90px;
            }
            .nav-desktop {
                gap: 0.1rem;
            }
            .nav-desktop a {
                padding: 0.4rem 0.5rem;
                font-size: 0.8rem;
            }
            .mobile-tab {
                display: flex;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-grid .footer-col:last-child {
                grid-column: span 1;
            }
            .cta-section {
                padding: 2rem 1.25rem;
            }
            .timeline {
                padding-left: 1.5rem;
            }
            .timeline::before {
                left: 0.5rem;
            }
            .timeline-item::before {
                left: -1.5rem;
            }
            .detail-preview .preview-header {
                padding: 1rem;
            }
            .detail-preview .preview-body {
                padding: 1rem;
            }
        }
        @media (max-width: 520px) {
            .nav-desktop a {
                font-size: 0.75rem;
                padding: 0.35rem 0.4rem;
            }
            .section-title {
                font-size: 1.2rem;
                padding-left: 0.75rem;
            }
            .section-title::before {
                width: 3px;
            }
            .section-subtitle {
                font-size: 0.85rem;
                padding-left: 0.75rem;
            }
            .btn {
                padding: 0.5rem 1rem;
                font-size: 0.85rem;
            }
            .filter-group {
                gap: 0.35rem;
            }
            .tag-filter {
                font-size: 0.72rem;
                padding: 0.35rem 0.7rem;
            }
            .intel-card .intel-title {
                font-size: 0.92rem;
            }
            .preview-stat {
                flex-wrap: wrap;
                gap: 0.4rem;
            }
            .preview-stat .stat-label {
                min-width: 4rem;
                font-size: 0.75rem;
            }
            .preview-stat .stat-value {
                font-size: 0.8rem;
            }
        }
        @media (min-width: 769px) {
            .mobile-tab {
                display: none;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #DCE6F8;
            --primary-bg: #EFF4FF;
            --green: #16A34A;
            --orange: #F97316;
            --red: #DC2626;
            --bg: #F8FAFC;
            --white: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 4px 16px rgba(2, 6, 23, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(2, 6, 23, 0.10);
            --shadow-emphasis: 0 0 0 1px rgba(37, 99, 235, 0.25), 0 8px 28px rgba(37, 99, 235, 0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }

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

        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            padding-bottom: 72px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            min-height: 68px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-link:hover {
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .logo-link:hover .logo-icon {
            background: var(--primary-dark);
            transform: rotate(-5deg);
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.15rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 0 0.25rem;
        }

        .nav-desktop::-webkit-scrollbar {
            display: none;
        }

        .nav-desktop a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.72rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .nav-desktop a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

        .nav-desktop a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            left: 0.7rem;
            right: 0.7rem;
            bottom: 0.12rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* Mobile Bottom Tab */
        .mobile-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 0.4rem 0.5rem calc(0.4rem + var(--safe-bottom));
            display: flex;
            justify-content: space-around;
            align-items: center;
            gap: 0.25rem;
            box-shadow: 0 -4px 16px rgba(2, 6, 23, 0.06);
        }

        .mobile-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.2rem;
            font-size: 0.68rem;
            color: var(--text-muted);
            padding: 0.2rem 0.35rem;
            border-radius: 6px;
            line-height: 1.2;
            transition: var(--transition);
            min-width: 52px;
        }

        .mobile-tab a i {
            font-size: 1.1rem;
            line-height: 1;
        }

        .mobile-tab a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

        .mobile-tab a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-tab a.active i {
            color: var(--primary);
        }

        /* Hero Section - Category Page */
        .cat-hero {
            background-color: var(--white);
            border-bottom: 1px solid var(--border-light);
            padding: 3.5rem 0 3rem;
            position: relative;
            overflow: hidden;
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: var(--primary-bg);
            z-index: 0;
            opacity: 0.6;
        }

        .cat-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -50px;
            width: 250px;
            height: 250px;
            border-radius: 50%;
            background: var(--primary-light);
            z-index: 0;
            opacity: 0.4;
        }

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

        .cat-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 600;
            padding: 0.4rem 0.9rem;
            border-radius: 999px;
            margin-bottom: 1rem;
            border: 1px solid var(--primary-light);
        }

        .cat-hero-badge i {
            font-size: 0.85rem;
        }

        .cat-hero h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.35;
            letter-spacing: -0.01em;
            margin-bottom: 1rem;
            position: relative;
            padding-left: 1rem;
        }

        .cat-hero h1::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.15em;
            bottom: 0.15em;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        .cat-hero-sub {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 1.5rem;
        }

        .cat-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-bottom: 1.5rem;
        }

        .cat-hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            background: var(--bg);
            padding: 0.3rem 0.7rem;
            border-radius: 999px;
            border: 1px solid var(--border-light);
        }

        .cat-hero-meta i {
            color: var(--primary);
            font-size: 0.8rem;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.18);
            line-height: 1.4;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.28);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--white);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            border: 1.5px solid var(--primary);
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
        }

        .btn-secondary:hover {
            background: var(--primary-bg);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        /* Service Matrix Section */
        .service-matrix-section {
            padding: 3.5rem 0;
        }

        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .matrix-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 1.5rem;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

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

        .matrix-card.featured {
            grid-column: span 2;
            background: linear-gradient(135deg, #F8FAFC 0%, #EFF4FF 100%);
            border-color: var(--primary-light);
            box-shadow: var(--shadow-emphasis);
        }

        .matrix-card-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            font-weight: 600;
        }

        .matrix-card-icon.blue {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .matrix-card-icon.green {
            background: #F0FDF4;
            color: var(--green);
        }
        .matrix-card-icon.orange {
            background: #FFF7ED;
            color: var(--orange);
        }
        .matrix-card-icon.red {
            background: #FEF2F2;
            color: var(--red);
        }
        .matrix-card-icon.purple {
            background: #F5F3FF;
            color: #7C3AED;
        }
        .matrix-card-icon.cyan {
            background: #ECFEFF;
            color: #0891B2;
        }

        .matrix-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .matrix-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0.8rem;
        }

        .matrix-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.45rem;
        }

        .matrix-tags span {
            font-size: 0.78rem;
            background: var(--bg);
            color: var(--text-secondary);
            padding: 0.25rem 0.6rem;
            border-radius: 999px;
            border: 1px solid var(--border-light);
        }

        .matrix-tags span.hl {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-light);
            font-weight: 500;
        }

        .mini-chart {
            display: flex;
            align-items: flex-end;
            gap: 4px;
            height: 54px;
            margin-top: 0.6rem;
            opacity: 0.85;
        }

        .mini-chart .bar {
            width: 12px;
            border-radius: 3px 3px 0 0;
            transition: var(--transition);
        }

        .mini-chart .bar:hover {
            opacity: 0.75;
        }

        /* Featured Content / Headline */
        .headline-section {
            padding: 3rem 0;
            background: var(--white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .headline-card {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 0;
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .headline-img {
            min-height: 280px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .headline-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.15) 0%, rgba(15, 23, 42, 0.35) 100%);
        }

        .headline-body {
            padding: 1.8rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .headline-body .tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
            margin-bottom: 0.8rem;
            align-self: flex-start;
            letter-spacing: 0.02em;
        }

        .headline-body h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.6rem;
            line-height: 1.45;
        }

        .headline-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0.8rem;
        }

        .headline-body .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .headline-body .meta i {
            margin-right: 0.3rem;
            color: var(--primary);
            font-size: 0.75rem;
        }

        /* Scenario / User Fit Section */
        .scenario-section {
            padding: 3.5rem 0;
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .scenario-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 1.5rem;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .scenario-card .icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }

        .scenario-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.5rem;
        }

        .scenario-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
            flex: 1;
        }

        /* Process / Steps Section */
        .process-section {
            padding: 3.5rem 0;
            background: var(--white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            margin-top: 2rem;
            counter-reset: step;
        }

        .step-card {
            background: var(--bg);
            border-radius: var(--radius-card);
            padding: 1.5rem 1.25rem;
            text-align: center;
            position: relative;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            counter-increment: step;
        }

        .step-card:hover {
            background: var(--primary-bg);
            border-color: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }

        .step-card .step-num {
            display: inline-flex;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.8rem;
        }

        .step-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.5rem;
        }

        .step-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* FAQ Section */
        .faq-section {
            padding: 3.5rem 0;
        }

        .faq-list {
            max-width: 800px;
            margin: 1.5rem auto 0;
            border-top: 1px solid var(--border);
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 0.5rem;
            cursor: pointer;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            line-height: 1.5;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 0.5rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .faq-answer.open {
            max-height: 300px;
            padding: 0 0.5rem 1.1rem;
        }

        /* CTA Form Section */
        .cta-form-section {
            padding: 3.5rem 0;
            background: linear-gradient(135deg, #1E3A5F 0%, #2563EB 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-form-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            z-index: 0;
        }

        .cta-form-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -30px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            z-index: 0;
        }

        .cta-form-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-form-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: 0 16px 48px rgba(2, 6, 23, 0.2);
            padding: 2rem;
            max-width: 620px;
            margin: 0 auto;
        }

        .cta-form-card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .cta-form-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }

        .form-group {
            margin-bottom: 1rem;
        }

        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.4rem;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 0.7rem 0.9rem;
            border: 1.5px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            color: var(--text);
            background: var(--white);
            transition: var(--transition);
            line-height: 1.4;
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }

        .form-submit-btn {
            width: 100%;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.98rem;
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            margin-top: 0.5rem;
        }

        .form-submit-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
        }

        .form-submit-btn:active {
            transform: scale(0.98);
        }

        /* Footer Section */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }

        .footer-brand .logo-link {
            color: #fff;
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
            display: inline-flex;
        }

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

        .footer-brand p {
            font-size: 0.85rem;
            color: #94A3B8;
            line-height: 1.75;
            margin-top: 0.8rem;
        }

        .footer-col h4 {
            color: #F1F5F9;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

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

        .footer-col ul li {
            margin-bottom: 0.55rem;
        }

        .footer-col ul li a {
            color: #94A3B8;
            font-size: 0.85rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .footer-col ul li a:hover {
            color: #fff;
            transform: translateX(3px);
        }

        .footer-col ul li a i {
            font-size: 0.7rem;
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
            font-size: 0.78rem;
            color: #64748B;
        }

        .footer-bottom a {
            color: #94A3B8;
            transition: var(--transition);
        }

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

        .footer-bottom .sep {
            margin: 0 0.4rem;
            color: #475569;
        }

        /* Section Title */
        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
            position: relative;
            padding-left: 1rem;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.25em;
            bottom: 0.25em;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 2rem;
            padding-left: 1rem;
            max-width: 680px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 2rem;
            }
            .footer-brand {
                grid-column: span 3;
            }
            .headline-card {
                grid-template-columns: 1fr;
            }
            .headline-img {
                min-height: 220px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: 76px;
            }
            .mobile-tab {
                display: flex;
            }
            .nav-desktop {
                display: none;
            }
            .site-header {
                min-height: 60px;
            }
            .cat-hero {
                padding: 2.5rem 0 2rem;
            }
            .cat-hero h1 {
                font-size: 1.6rem;
                padding-left: 0.7rem;
            }
            .cat-hero h1::before {
                left: 0;
            }
            .cat-hero-sub {
                font-size: 0.92rem;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .matrix-card.featured {
                grid-column: span 1;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .headline-card {
                grid-template-columns: 1fr;
            }
            .headline-img {
                min-height: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-brand {
                grid-column: span 1;
            }
            .section-title {
                font-size: 1.35rem;
                padding-left: 0.7rem;
            }
            .section-title::before {
                left: 0;
            }
            .section-subtitle {
                font-size: 0.88rem;
                padding-left: 0.7rem;
            }
            .cta-form-card {
                padding: 1.5rem;
            }
            .cta-form-card h2 {
                font-size: 1.25rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .cat-hero h1 {
                font-size: 1.4rem;
            }
            .cat-hero-sub {
                font-size: 0.88rem;
            }
            .cat-hero-meta {
                gap: 0.5rem;
            }
            .cat-hero-meta span {
                font-size: 0.78rem;
                padding: 0.2rem 0.55rem;
            }
            .btn-primary,
            .btn-secondary {
                font-size: 0.88rem;
                padding: 0.6rem 1.2rem;
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-secondary {
                width: 100%;
            }
            .matrix-card {
                padding: 1.2rem;
            }
            .matrix-card h3 {
                font-size: 1.05rem;
            }
            .headline-body {
                padding: 1.2rem;
            }
            .headline-body h2 {
                font-size: 1.15rem;
            }
            .step-card {
                padding: 1.2rem 1rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 0.9rem 0.3rem;
            }
            .minichart .bar {
                width: 8px;
            }
        }