/* roulang page: index */
:root {
            --primary: #0C3B37;
            --primary-dark: #072A26;
            --accent: #14B8A6;
            --accent-light: #2DD4BF;
            --accent-bg: rgba(20, 184, 166, 0.10);
            --orange: #F97316;
            --orange-light: #FB923C;
            --orange-bg: rgba(249, 115, 22, 0.10);
            --bg: #F5F9F7;
            --text: #1F2937;
            --text-secondary: #6B7280;
            --text-on-dark: #F0FDFA;
            --border: rgba(12, 59, 55, 0.08);
            --border-dark: rgba(255, 255, 255, 0.14);
            --radius-card: 20px;
            --radius-hero: 28px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 30px rgba(7, 42, 38, 0.08);
            --shadow-hover: 0 16px 40px rgba(7, 42, 38, 0.14);
            --shadow-nav: 0 6px 24px rgba(7, 42, 38, 0.10);
            --container: 1200px;
            --gutter: 24px;
            --space-section: 96px;
            --space-section-mobile: 56px;
            --transition: all 0.3s ease;
            --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: var(--gutter);
            padding-right: var(--gutter);
        }
        .section {
            padding-top: var(--space-section);
            padding-bottom: var(--space-section);
        }
        .section-alt {
            background: #FFFFFF;
        }
        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--primary);
            margin-bottom: 12px;
            text-align: center;
        }
        .section-subtitle {
            font-size: 1.0625rem;
            color: var(--text-secondary);
            text-align: center;
            max-width: 600px;
            margin: 0 auto 48px;
            line-height: 1.6;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.9375rem;
            transition: var(--transition);
            border: 2px solid transparent;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--orange), var(--orange-light));
            color: #fff;
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.30);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(249, 115, 22, 0.40);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.70);
            color: #fff;
        }
        .btn-outline:hover {
            background: var(--accent-bg);
            border-color: var(--accent-light);
            color: var(--accent-light);
        }
        .btn-outline-dark {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline-dark:hover {
            background: var(--accent-bg);
            border-color: var(--accent);
            color: var(--accent);
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 0.875rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1rem;
        }
        .btn-block {
            width: 100%;
            text-align: center;
        }
        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.8125rem;
            font-weight: 600;
            background: var(--accent-bg);
            color: var(--primary);
        }
        .tag-orange {
            background: var(--orange-bg);
            color: var(--orange);
        }
        .tag-white {
            background: rgba(255, 255, 255, 0.16);
            color: #fff;
        }
        .data-num {
            font-weight: 900;
            color: var(--orange);
            font-size: 2.5rem;
            line-height: 1.1;
            font-variant-numeric: tabular-nums;
        }
        .data-unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
        }
        .data-label {
            font-size: 0.875rem;
            color: var(--text-secondary);
        }
        .empty-tip {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-secondary);
            background: var(--bg);
            border-radius: var(--radius-card);
            border: 1px dashed var(--border);
            font-size: 0.9375rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 32px);
            max-width: calc(var(--container) + 48px);
        }
        .nav-container {
            background: rgba(255, 255, 255, 0.86);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-nav);
            padding: 10px 12px 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border: 1px solid rgba(255, 255, 255, 0.50);
            transition: var(--transition);
        }
        .site-header.scrolled .nav-container {
            box-shadow: 0 8px 32px rgba(7, 42, 38, 0.14);
            background: rgba(255, 255, 255, 0.95);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 0.9375rem;
            letter-spacing: -0.5px;
        }
        .logo-text {
            font-size: 1.125rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
        }
        .logo-text span {
            color: var(--accent);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            padding: 9px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            background: var(--accent-bg);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--accent);
            color: #fff;
        }
        .nav-btn {
            margin-left: 8px;
            background: linear-gradient(135deg, var(--orange), var(--orange-light));
            color: #fff;
            padding: 9px 22px;
            border-radius: var(--radius-pill);
            font-size: 0.875rem;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.30);
        }
        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.38);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--accent-bg);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            transition: var(--transition);
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 76px;
            left: 16px;
            right: 16px;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(16px);
            border-radius: 20px;
            box-shadow: var(--shadow-hover);
            padding: 16px;
            z-index: 999;
            border: 1px solid var(--border);
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav .nav-link {
            padding: 14px 16px;
            font-size: 1rem;
        }
        .mobile-nav .nav-btn {
            margin: 8px 0 0;
            text-align: center;
            justify-content: center;
            display: flex;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 720px;
            display: flex;
            align-items: center;
            padding: 160px 0 96px;
            background: linear-gradient(115deg, rgba(7, 42, 38, 0.95) 20%, rgba(12, 59, 55, 0.78) 50%, rgba(20, 184, 166, 0.35) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            color: var(--text-on-dark);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 56px;
            align-items: center;
            width: 100%;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.20);
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--text-on-dark);
            margin-bottom: 24px;
        }
        .hero-tag i {
            font-style: normal;
            color: var(--accent-light);
        }
        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.75rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: #FFFFFF;
        }
        .hero-sub {
            font-size: 1.125rem;
            line-height: 1.7;
            color: rgba(240, 253, 250, 0.88);
            max-width: 520px;
            margin-bottom: 32px;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .hero-trust {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.16);
        }
        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: rgba(240, 253, 250, 0.80);
        }
        .hero-trust-item strong {
            font-size: 1.125rem;
            font-weight: 800;
            color: var(--orange-light);
            font-variant-numeric: tabular-nums;
        }
        .hero-badges {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .badge-card {
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: var(--transition);
        }
        .badge-card:hover {
            background: rgba(255, 255, 255, 0.16);
            transform: translateY(-4px);
            border-color: rgba(255, 255, 255, 0.25);
        }
        .badge-card .data-num {
            font-size: 2.75rem;
        }
        .badge-card .data-label {
            color: rgba(240, 253, 250, 0.75);
            margin-top: 6px;
        }
        .badge-card .data-unit {
            color: var(--accent-light);
        }

        /* ===== Features (分舱) ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }
        .feature-card-large {
            grid-column: span 7;
            background: linear-gradient(145deg, var(--primary) 0%, #0F4A45 100%);
            border-radius: var(--radius-hero);
            padding: 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 340px;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .feature-card-large::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(20, 184, 166, 0.28) 0%, transparent 70%);
            border-radius: 50%;
        }
        .feature-card-large:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card-large .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        .feature-card-large h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .feature-card-large p {
            color: rgba(240, 253, 250, 0.80);
            line-height: 1.65;
            max-width: 400px;
            margin-bottom: 24px;
        }
        .feature-card-large .feature-points {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 28px;
        }
        .feature-card-large .feature-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9375rem;
            color: rgba(240, 253, 250, 0.90);
        }
        .feature-card-large .feature-points li::before {
            content: '✓';
            display: inline-flex;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .feature-link {
            color: var(--accent-light);
            font-weight: 600;
            font-size: 0.9375rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .feature-link:hover {
            gap: 10px;
            color: #fff;
        }
        .feature-stack {
            grid-column: span 5;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .feature-card-small {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 30px;
            flex: 1;
            transition: var(--transition);
        }
        .feature-card-small:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .feature-card-small .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--accent-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 16px;
        }
        .feature-card-small h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .feature-card-small p {
            font-size: 0.9375rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        .feature-mini-row {
            grid-column: span 12;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 24px;
        }
        .feature-card-mini {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .feature-card-mini:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--accent);
        }
        .feature-card-mini .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--orange-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
            flex-shrink: 0;
        }
        .feature-card-mini h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 2px;
        }
        .feature-card-mini p {
            font-size: 0.8125rem;
            color: var(--text-secondary);
        }

        /* ===== Scenarios ===== */
        .scenarios {
            background: #FFFFFF;
        }
        .scene-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            margin-bottom: 72px;
            position: relative;
        }
        .scene-row:last-child {
            margin-bottom: 0;
        }
        .scene-row.reverse .scene-img {
            order: 2;
        }
        .scene-row.reverse .scene-text {
            order: 1;
        }
        .scene-num {
            font-size: 6rem;
            font-weight: 900;
            color: rgba(12, 59, 55, 0.06);
            line-height: 1;
            position: absolute;
            top: -30px;
            left: -10px;
            z-index: 0;
            user-select: none;
            letter-spacing: -0.03em;
        }
        .scene-row.reverse .scene-num {
            left: auto;
            right: -10px;
        }
        .scene-img {
            position: relative;
            z-index: 1;
            border-radius: 24px;
            overflow: hidden;
            height: 360px;
            box-shadow: var(--shadow-card);
        }
        .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .scene-img:hover img {
            transform: scale(1.03);
        }
        .scene-text {
            position: relative;
            z-index: 1;
        }
        .scene-text h3 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .scene-text p {
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
            font-size: 1rem;
        }
        .scene-points {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .scene-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9375rem;
            color: var(--text);
        }
        .scene-points li::before {
            content: '✓';
            display: inline-flex;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* ===== Cases ===== */
        .cases {
            background: var(--bg);
        }
        .data-bar {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-hero);
            padding: 48px 48px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 56px;
            position: relative;
            overflow: hidden;
        }
        .data-bar::before {
            content: '';
            position: absolute;
            right: -40px;
            top: -40px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(20, 184, 166, 0.20) 0%, transparent 70%);
            border-radius: 50%;
        }
        .data-bar-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .data-bar-item .data-num {
            font-size: 3rem;
            color: var(--orange);
            display: block;
        }
        .data-bar-item .data-label {
            color: rgba(240, 253, 250, 0.80);
            font-size: 0.875rem;
            margin-top: 8px;
            display: block;
        }
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
        }
        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .case-cover {
            height: 180px;
            overflow: hidden;
        }
        .case-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .case-card:hover .case-cover img {
            transform: scale(1.04);
        }
        .case-body {
            padding: 24px;
        }
        .case-body h3 {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .case-body p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .case-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }
        .case-stat {
            text-align: center;
        }
        .case-stat .data-num {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
        }
        .case-stat .data-label {
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        /* ===== Pricing ===== */
        .pricing {
            background: #FFFFFF;
        }
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: center;
            max-width: 1020px;
            margin: 0 auto;
        }
        .price-card {
            background: #fff;
            border-radius: var(--radius-hero);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 36px 32px;
            transition: var(--transition);
            position: relative;
        }
        .price-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .price-card.recommended {
            background: linear-gradient(160deg, var(--primary-dark), var(--primary));
            color: #fff;
            padding: 44px 36px;
            box-shadow: 0 16px 40px rgba(7, 42, 38, 0.30);
            transform: scale(1.04);
            z-index: 2;
        }
        .price-card.recommended:hover {
            transform: scale(1.04) translateY(-4px);
        }
        .price-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, var(--orange), var(--orange-light));
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 18px;
            border-radius: var(--radius-pill);
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
            white-space: nowrap;
        }
        .price-name {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .price-card.recommended .price-name {
            color: #fff;
        }
        .price-desc {
            font-size: 0.875rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.5;
        }
        .price-card.recommended .price-desc {
            color: rgba(240, 253, 250, 0.80);
        }
        .price-zero {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary);
            margin-bottom: 20px;
            font-variant-numeric: tabular-nums;
        }
        .price-card.recommended .price-zero {
            color: var(--orange-light);
        }
        .price-features {
            list-style: none;
            margin-bottom: 28px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .price-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9375rem;
            line-height: 1.4;
        }
        .price-features li::before {
            content: '✓';
            display: inline-flex;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--accent-bg);
            color: var(--accent);
            font-size: 0.75rem;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
            font-weight: 700;
        }
        .price-card.recommended .price-features li::before {
            background: rgba(255, 255, 255, 0.16);
            color: var(--accent-light);
        }

        /* ===== News ===== */
        .news {
            background: var(--bg);
        }
        .news-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 36px;
            gap: 16px;
        }
        .news-header .section-title {
            margin-bottom: 0;
            text-align: left;
        }
        .news-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9375rem;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border);
            background: #fff;
            transition: var(--transition);
            white-space: nowrap;
        }
        .news-more:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-bg);
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 24px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 20px;
            transition: var(--transition);
        }
        .news-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .news-thumb {
            width: 96px;
            height: 96px;
            border-radius: 14px;
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
            background-color: var(--accent-bg);
        }
        .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-info h3 {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: var(--transition);
        }
        .news-item:hover .news-info h3 {
            color: var(--accent);
        }
        .news-info p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .news-meta time {
            font-size: 0.8125rem;
            color: var(--text-secondary);
        }
        .news-read {
            margin-left: auto;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent);
            white-space: nowrap;
        }
        .news-read:hover {
            color: var(--primary);
        }

        /* ===== FAQ ===== */
        .faq {
            background: #FFFFFF;
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 24px 28px;
            transition: var(--transition);
        }
        .faq-item.open {
            border-color: var(--accent);
            background: #fff;
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            user-select: none;
        }
        .faq-q {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.9375rem;
            flex-shrink: 0;
        }
        .faq-q-text {
            flex: 1;
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--primary);
        }
        .faq-arrow {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            transition: var(--transition);
            font-size: 0.9375rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            background: var(--accent);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, margin 0.35s ease, padding 0.35s ease;
            font-size: 0.9375rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-left: 50px;
            margin-top: 0;
            padding-top: 0;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }

        /* ===== Final CTA ===== */
        .cta-final {
            background: var(--bg);
        }
        .cta-panel {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary) 55%, var(--accent));
            border-radius: 32px;
            padding: 72px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.10) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-panel::after {
            content: '';
            position: absolute;
            left: -60px;
            bottom: -80px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.18) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-panel h2 {
            font-size: clamp(1.75rem, 3.2vw, 2.5rem);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .cta-panel p {
            font-size: 1.0625rem;
            color: rgba(240, 253, 250, 0.85);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.6;
            position: relative;
            z-index: 1;
        }
        .cta-panel .btn {
            position: relative;
            z-index: 1;
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
        }
        .cta-panel .btn:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(240, 253, 250, 0.80);
            padding-top: 60px;
            padding-bottom: 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 48px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 1.25rem;
            margin-bottom: 14px;
        }
        .footer-brand .logo-text span {
            color: var(--accent-light);
        }
        .footer-brand p {
            font-size: 0.9375rem;
            line-height: 1.6;
            color: rgba(240, 253, 250, 0.70);
            max-width: 320px;
            margin-bottom: 20px;
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 0.875rem;
            color: rgba(240, 253, 250, 0.65);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .footer-links h4 {
            font-size: 0.875rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 0.875rem;
            color: rgba(240, 253, 250, 0.70);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            flex-wrap: wrap;
            font-size: 0.8125rem;
            color: rgba(240, 253, 250, 0.50);
        }
        .footer-bottom a {
            color: rgba(240, 253, 250, 0.65);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero {
                min-height: auto;
                padding: 140px 0 72px;
            }
            .hero-badges {
                max-width: 520px;
            }
            .features-grid {
                gap: 20px;
            }
            .feature-card-large {
                grid-column: span 12;
                min-height: auto;
            }
            .feature-stack {
                grid-column: span 12;
                flex-direction: row;
                gap: 20px;
            }
            .feature-card-small {
                flex: 1;
            }
            .feature-mini-row {
                grid-column: span 12;
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
            .scene-row {
                gap: 36px;
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-card:last-child {
                grid-column: span 2;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 520px;
            }
            .price-card.recommended {
                transform: none;
            }
            .price-card.recommended:hover {
                transform: translateY(-4px);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding-top: var(--space-section-mobile);
                padding-bottom: var(--space-section-mobile);
            }
            .hero {
                padding: 120px 0 56px;
            }
            .hero h1 {
                font-size: clamp(1.9rem, 6vw, 2.6rem);
            }
            .hero-sub {
                font-size: 1rem;
            }
            .hero-badges {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .badge-card {
                padding: 20px 16px;
            }
            .badge-card .data-num {
                font-size: 2rem;
            }
            .feature-card-large {
                padding: 28px 24px;
            }
            .feature-stack {
                flex-direction: column;
            }
            .feature-mini-row {
                grid-template-columns: 1fr;
            }
            .scene-row {
                grid-template-columns: 1fr;
                gap: 24px;
                margin-bottom: 56px;
            }
            .scene-row.reverse .scene-img {
                order: 0;
            }
            .scene-row.reverse .scene-text {
                order: 1;
            }
            .scene-img {
                height: 260px;
            }
            .scene-num {
                font-size: 4rem;
                top: -16px;
            }
            .data-bar {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
                padding: 32px 24px;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .case-card:last-child {
                grid-column: auto;
            }
            .news-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .news-item {
                flex-direction: row;
                gap: 14px;
                padding: 14px;
            }
            .news-thumb {
                width: 72px;
                height: 72px;
                border-radius: 10px;
            }
            .news-info h3 {
                font-size: 0.9375rem;
            }
            .news-info p {
                font-size: 0.8125rem;
                -webkit-line-clamp: 1;
            }
            .news-read {
                display: none;
            }
            .faq-item {
                padding: 18px 16px;
            }
            .faq-answer {
                padding-left: 0;
            }
            .cta-panel {
                padding: 48px 24px;
                border-radius: 24px;
            }
            .footer-links {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
            .data-bar-item .data-num {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 520px) {
            .hero-trust {
                gap: 16px;
            }
            .hero-btns .btn {
                width: 100%;
            }
            .hero-badges {
                grid-template-columns: 1fr 1fr;
            }
            .feature-card-large h3 {
                font-size: 1.25rem;
            }
            .feature-card-large .feature-points li {
                font-size: 0.875rem;
            }
            .feature-mini-row {
                grid-template-columns: 1fr;
            }
            .scene-text h3 {
                font-size: 1.375rem;
            }
            .data-bar {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
                padding: 24px 16px;
            }
            .data-bar-item .data-num {
                font-size: 1.9rem;
            }
            .case-card {
                border-radius: 16px;
            }
            .case-cover {
                height: 150px;
            }
            .price-card {
                padding: 28px 20px;
                border-radius: 20px;
            }
            .price-card.recommended {
                padding: 36px 24px;
            }
            .footer-links {
                grid-template-columns: 1fr 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: article */
:root {
            --primary: #0C3B37;
            --primary-dark: #072A26;
            --secondary: #14B8A6;
            --secondary-dark: #0D9488;
            --accent: #F97316;
            --accent-light: #FB923C;
            --bg: #F5F9F7;
            --text: #1F2937;
            --text-secondary: #6B7280;
            --text-on-dark: #F0FDFA;
            --border: rgba(12, 59, 55, .08);
            --border-on-dark: rgba(255, 255, 255, .12);
            --radius: 20px;
            --radius-sm: 12px;
            --radius-lg: 28px;
            --radius-pill: 999px;
            --shadow: 0 8px 30px rgba(7, 42, 38, .08);
            --shadow-hover: 0 16px 40px rgba(7, 42, 38, .14);
            --container: 1200px;
            --transition: all .3s ease;
            --section-pad: 96px;
            --section-pad-mobile: 56px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 100;
            transition: var(--transition);
        }
        .site-header.scrolled {
            top: 0;
        }
        .site-header.scrolled .nav-container {
            box-shadow: var(--shadow-hover);
            background: rgba(255, 255, 255, .96);
        }
        .nav-container {
            max-width: calc(var(--container) - 40px);
            margin: 0 auto;
            background: rgba(255, 255, 255, .9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-pill);
            border: 1px solid rgba(12, 59, 55, .06);
            box-shadow: var(--shadow);
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: var(--transition);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: .85rem;
            font-weight: 800;
            letter-spacing: .5px;
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -.5px;
        }
        .logo-text span {
            color: var(--secondary);
            font-weight: 600;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: .95rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            background: rgba(20, 184, 166, .08);
            color: var(--primary);
        }
        .nav-link.active {
            background: rgba(20, 184, 166, .12);
            color: var(--primary);
            font-weight: 600;
        }
        .nav-btn {
            display: inline-flex;
            align-items: center;
            padding: 9px 22px;
            border-radius: var(--radius-pill);
            background: var(--accent);
            color: #fff;
            font-size: .95rem;
            font-weight: 600;
            transition: var(--transition);
            margin-left: 8px;
        }
        .nav-btn:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(249, 115, 22, .3);
        }
        .nav-btn:active {
            transform: translateY(0);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 10px;
            transition: var(--transition);
        }
        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(12, 59, 55, .05);
        }
        .nav-toggle:focus-visible,
        .nav-link:focus-visible,
        .nav-btn:focus-visible {
            outline: 3px solid rgba(20, 184, 166, .4);
            outline-offset: 2px;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            padding: 120px 0 0;
            background: var(--bg);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: .875rem;
            color: var(--text-secondary);
            padding: 14px 20px;
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(7, 42, 38, .04);
        }
        .breadcrumb a {
            color: var(--secondary-dark);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #ccc;
            font-size: .8rem;
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            max-width: 260px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 32px 0 0;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            max-width: 860px;
            margin: 0 auto;
            padding: 48px 56px;
            position: relative;
            overflow: hidden;
        }
        .article-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
        }
        .article-card h1 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--primary);
            margin-bottom: 20px;
            letter-spacing: -.5px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 24px;
            padding-bottom: 24px;
            margin-bottom: 32px;
            border-bottom: 1px solid var(--border);
            font-size: .875rem;
            color: var(--text-secondary);
        }
        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-icon {
            width: 16px;
            height: 16px;
            opacity: .7;
        }
        .article-cat-badge {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(20, 184, 166, .1);
            color: var(--secondary-dark);
            border-radius: var(--radius-pill);
            font-size: .8rem;
            font-weight: 600;
        }
        .article-content {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text);
            word-break: break-word;
        }
        .article-content p {
            margin-bottom: 1rem;
        }
        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin: 2rem 0 1rem;
            padding-top: 1rem;
            border-top: 1px solid rgba(12, 59, 55, .04);
        }
        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--primary);
            margin: 1.5rem 0 .75rem;
        }
        .article-content h4 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text);
            margin: 1.25rem 0 .5rem;
        }
        .article-content blockquote {
            border-left: 4px solid var(--secondary);
            background: rgba(20, 184, 166, .07);
            padding: 1rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content img {
            border-radius: 16px;
            margin: 1.5rem 0;
            box-shadow: 0 4px 16px rgba(7, 42, 38, .08);
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: .95rem;
            border-radius: var(--radius-sm);
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(7, 42, 38, .03);
        }
        .article-content table th,
        .article-content table td {
            padding: .75rem 1rem;
            border: 1px solid var(--border);
            text-align: left;
        }
        .article-content table th {
            background: rgba(12, 59, 55, .05);
            font-weight: 600;
            color: var(--primary);
        }
        .article-content table tr:nth-child(even) {
            background: rgba(245, 249, 247, .5);
        }
        .article-content pre {
            background: var(--primary-dark);
            color: var(--text-on-dark);
            padding: 1.25rem 1.5rem;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 1.5rem 0;
            font-size: .9rem;
            line-height: 1.6;
        }
        .article-content code {
            font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
            font-size: .9em;
            background: rgba(20, 184, 166, .08);
            padding: 2px 6px;
            border-radius: 4px;
            color: var(--primary);
        }
        .article-content pre code {
            background: none;
            padding: 0;
            color: inherit;
        }
        .article-content ul,
        .article-content ol {
            margin: 1rem 0 1rem 1.5rem;
        }
        .article-content ul li,
        .article-content ol li {
            margin-bottom: .5rem;
            line-height: 1.7;
        }
        .article-content ul li {
            position: relative;
        }
        .article-content a {
            color: var(--secondary-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: var(--transition);
        }
        .article-content a:hover {
            color: var(--primary);
        }

        /* Article Footer */
        .article-footer {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            background: rgba(20, 184, 166, .08);
            color: var(--secondary-dark);
            font-size: .8rem;
            font-weight: 500;
        }
        .article-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 20px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--primary);
            color: var(--primary);
            font-size: .875rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-back:hover {
            background: rgba(12, 59, 55, .05);
            border-color: var(--secondary-dark);
            color: var(--secondary-dark);
            transform: translateY(-2px);
        }
        .article-back:active {
            transform: translateY(0);
        }

        /* Article Not Found */
        .article-not-found {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            max-width: 720px;
            margin: 0 auto;
            padding: 64px 48px;
            text-align: center;
        }
        .article-not-found h1 {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: 28px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: var(--accent);
            color: #fff;
            font-size: .95rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(249, 115, 22, .3);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(249, 115, 22, .3);
            outline-offset: 2px;
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: var(--section-pad) 0;
            background: #fff;
            margin-top: 24px;
        }
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-head h2 {
            font-size: clamp(1.75rem, 3vw, 2.25rem);
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -.3px;
            margin-bottom: 8px;
        }
        .section-head p {
            color: var(--text-secondary);
            max-width: 500px;
            margin: 0 auto;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            display: block;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(20, 184, 166, .3);
        }
        .related-card:focus-visible {
            outline: 3px solid rgba(20, 184, 166, .4);
            outline-offset: 2px;
        }
        .related-cover {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .related-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(7, 42, 38, .2));
        }
        .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .related-card:hover .related-cover img {
            transform: scale(1.04);
        }
        .related-body {
            padding: 20px 24px 24px;
        }
        .related-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-body p {
            font-size: .875rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-body .related-link {
            font-size: .875rem;
            font-weight: 600;
            color: var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .related-body .related-link::after {
            content: "→";
            transition: transform .3s ease;
        }
        .related-card:hover .related-link::after {
            transform: translateX(4px);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: var(--section-pad) 0;
            background: var(--bg);
        }
        .cta-panel {
            background: linear-gradient(120deg, var(--primary) 0%, var(--primary-dark) 60%, var(--secondary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, .05);
            border-radius: 50%;
        }
        .cta-panel::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 180px;
            height: 180px;
            background: rgba(20, 184, 166, .08);
            border-radius: 50%;
        }
        .cta-panel h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-panel p {
            color: rgba(240, 253, 250, .8);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: .95rem;
            position: relative;
            z-index: 1;
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .btn-light {
            display: inline-flex;
            align-items: center;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: #fff;
            color: var(--primary);
            font-size: .95rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, .2);
            color: var(--secondary-dark);
        }
        .btn-light:active {
            transform: translateY(0);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(255, 255, 255, .5);
            color: #fff;
            font-size: .95rem;
            font-weight: 600;
            transition: var(--transition);
            background: transparent;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-light:active {
            transform: translateY(0);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(240, 253, 250, .8);
            padding: 60px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-on-dark);
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 1.5rem;
            margin-bottom: 12px;
            display: block;
        }
        .footer-brand p {
            font-size: .9rem;
            line-height: 1.6;
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: .85rem;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .footer-links h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-links ul {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: .875rem;
            color: rgba(240, 253, 250, .7);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 24px;
            font-size: .8rem;
            color: rgba(240, 253, 250, .45);
        }
        .footer-bottom a {
            color: rgba(240, 253, 250, .6);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-card:last-child {
                grid-column: span 2;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .nav-container {
                padding: 8px 16px;
            }
            .nav-toggle {
                display: flex;
            }
            .desktop-nav {
                position: fixed;
                top: 72px;
                left: 16px;
                right: 16px;
                background: rgba(255, 255, 255, .98);
                backdrop-filter: blur(12px);
                border-radius: 20px;
                box-shadow: var(--shadow-hover);
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                display: none;
                z-index: 100;
                border: 1px solid var(--border);
            }
            .desktop-nav.nav-open {
                display: flex;
            }
            .nav-link {
                text-align: center;
                padding: 12px;
                border-radius: 12px;
            }
            .nav-btn {
                margin: 8px 0 0;
                justify-content: center;
                text-align: center;
            }
            .breadcrumb-wrap {
                padding-top: 96px;
            }
            .article-card {
                padding: 32px 24px;
                border-radius: 18px;
            }
            .article-footer {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-card:last-child {
                grid-column: auto;
            }
            .cta-panel {
                padding: 40px 24px;
                border-radius: 20px;
            }
            .cta-btns {
                flex-direction: column;
                gap: 12px;
            }
            .cta-btns .btn-light,
            .cta-btns .btn-outline-light {
                justify-content: center;
                width: 100%;
            }
            .footer-links {
                grid-template-columns: 1fr 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .logo-text {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: .75rem;
            }
            .article-card h1 {
                font-size: 1.5rem;
            }
            .article-card {
                padding: 24px 18px;
            }
            .breadcrumb {
                padding: 12px 14px;
                font-size: .8rem;
            }
            .breadcrumb .current {
                max-width: 180px;
            }
            .related-cover {
                height: 160px;
            }
            .cta-panel h2 {
                font-size: 1.25rem;
            }
            .cta-panel p {
                font-size: .875rem;
            }
            .footer-links {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 400px) {
            .section-head h2 {
                font-size: 1.5rem;
            }
            .related-body {
                padding: 16px;
            }
        }

/* roulang page: category1 */
/* ===== Design Tokens ===== */
        :root {
            --primary: #0C3B37;
            --primary-dark: #072A26;
            --secondary: #14B8A6;
            --secondary-light: #5EEAD4;
            --accent: #F97316;
            --accent-light: #FB923C;
            --bg-light: #F5F9F7;
            --bg-white: #FFFFFF;
            --text-main: #1F2937;
            --text-sub: #6B7280;
            --text-light: #F0FDFA;
            --border-color: rgba(12, 59, 55, .08);
            --border-dark: rgba(255, 255, 255, .12);
            --radius-sm: 12px;
            --radius-md: 20px;
            --radius-lg: 28px;
            --shadow-card: 0 8px 30px rgba(7, 42, 38, .08);
            --shadow-hover: 0 16px 40px rgba(7, 42, 38, .14);
            --shadow-nav: 0 6px 24px rgba(7, 42, 38, .10);
            --gradient-main: linear-gradient(135deg, #0C3B37, #14B8A6);
            --gradient-cta: linear-gradient(135deg, #F97316, #FB923C);
            --transition: all .3s ease;
            --container: 1200px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        input,
        textarea {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 96px 0;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            font-weight: 700;
        }
        h1 {
            font-size: clamp(2.2rem, 5vw, 3.75rem);
            line-height: 1.15;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            margin-bottom: 16px;
        }
        h3 {
            font-size: 1.25rem;
        }
        p {
            color: var(--text-sub);
        }

        /* ===== Section Headers ===== */
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-head h2 {
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 1rem;
            line-height: 1.7;
        }
        .section-tag {
            display: inline-block;
            background: rgba(20, 184, 166, .12);
            color: #0B8A7A;
            font-size: .75rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            letter-spacing: .5px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .section-tag.dark {
            background: rgba(255, 255, 255, .15);
            color: var(--text-light);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: 999px;
            font-size: .95rem;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid transparent;
            line-height: 1.2;
            white-space: nowrap;
        }
        .btn i {
            font-size: .85rem;
        }
        .btn-primary {
            background: var(--gradient-cta);
            color: #fff;
            box-shadow: 0 8px 20px rgba(249, 115, 22, .25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(249, 115, 22, .35);
            background: var(--gradient-cta);
            filter: brightness(1.05);
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-outline {
            border-color: rgba(20, 184, 166, .6);
            color: var(--secondary);
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(20, 184, 166, .1);
            border-color: var(--secondary);
        }
        .btn-outline-light {
            border-color: rgba(255, 255, 255, .7);
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .18);
            border-color: #fff;
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
        }
        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, .2);
        }
        .btn:focus-visible {
            outline: 3px solid rgba(20, 184, 166, .4);
            outline-offset: 2px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 16px 0 0;
            transition: var(--transition);
        }
        .site-header.scrolled {
            padding-top: 8px;
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, .85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 10px 24px;
            border-radius: 999px;
            box-shadow: var(--shadow-nav);
            border: 1px solid rgba(255, 255, 255, .6);
            max-width: calc(var(--container) - 60px);
            transition: var(--transition);
        }
        .site-header.scrolled .nav-container {
            box-shadow: 0 10px 30px rgba(7, 42, 38, .15);
            padding-top: 8px;
            padding-bottom: 8px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--gradient-main);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: .85rem;
            letter-spacing: -.5px;
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .logo-text span {
            color: var(--secondary);
            font-weight: 600;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 10px 18px;
            border-radius: 999px;
            font-size: .9rem;
            font-weight: 500;
            color: var(--text-main);
            transition: var(--transition);
        }
        .nav-link:hover {
            background: rgba(20, 184, 166, .08);
            color: var(--primary);
        }
        .nav-link.active {
            background: rgba(20, 184, 166, .14);
            color: #0B8A7A;
            font-weight: 600;
        }
        .nav-btn {
            padding: 10px 22px;
            border-radius: 999px;
            background: var(--gradient-cta);
            color: #fff;
            font-size: .85rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-left: 8px;
            box-shadow: 0 6px 18px rgba(249, 115, 22, .25);
            transition: var(--transition);
        }
        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(249, 115, 22, .35);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            border-radius: 8px;
        }
        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            padding: 20px 0 0;
            background: transparent;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: .85rem;
            color: var(--text-sub);
        }
        .breadcrumb a {
            color: var(--secondary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: #9CA3AF;
        }
        .breadcrumb .current {
            color: var(--text-main);
            font-weight: 500;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 96px 0 80px;
            background: linear-gradient(100deg, rgba(7, 42, 38, .93), rgba(12, 59, 55, .72)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            color: #fff;
            border-bottom: 4px solid var(--secondary);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .15);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, .2);
            color: #D1FAE5;
            font-size: .75rem;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 999px;
            margin-bottom: 24px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .hero-tag i {
            color: var(--accent-light);
        }
        .page-hero h1 {
            color: #fff;
            margin-bottom: 20px;
            max-width: 720px;
        }
        .page-hero p {
            color: rgba(255, 255, 255, .85);
            font-size: 1.1rem;
            max-width: 640px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, .15);
        }
        .hero-stat {
            background: rgba(255, 255, 255, .08);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            text-align: center;
            transition: var(--transition);
        }
        .hero-stat:hover {
            background: rgba(255, 255, 255, .14);
            transform: translateY(-4px);
        }
        .hero-stat .num {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-light);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .hero-stat .label {
            color: rgba(255, 255, 255, .8);
            font-size: .8rem;
            margin-top: 6px;
        }

        /* ===== Core Play ===== */
        .play-layout {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 24px;
            align-items: stretch;
        }
        .play-feature {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .play-feature:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .play-feature-img {
            height: 220px;
            width: 100%;
            overflow: hidden;
        }
        .play-feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .play-feature:hover .play-feature-img img {
            transform: scale(1.05);
        }
        .play-feature-body {
            padding: 32px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .play-feature-body h3 {
            font-size: 1.375rem;
            margin-bottom: 12px;
        }
        .play-feature-body p {
            color: var(--text-sub);
            margin-bottom: 20px;
        }
        .play-feature-points {
            margin-top: auto;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .play-feature-points li {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(20, 184, 166, .08);
            border-radius: 999px;
            padding: 6px 14px;
            font-size: .8rem;
            color: #0B8A7A;
            font-weight: 500;
        }
        .play-feature-points li i {
            font-size: .7rem;
        }
        .play-cards {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .play-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 28px;
            transition: var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .play-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .play-card-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .play-card-icon.ic-green {
            background: rgba(20, 184, 166, .12);
            color: #0B8A7A;
        }
        .play-card-icon.ic-orange {
            background: rgba(249, 115, 22, .12);
            color: var(--accent);
        }
        .play-card-icon.ic-dark {
            background: rgba(12, 59, 55, .1);
            color: var(--primary);
        }
        .play-card-body h3 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .play-card-body p {
            font-size: .875rem;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* ===== Scenarios ===== */
        .section-dark {
            background: var(--primary-dark);
            color: var(--text-light);
        }
        .section-dark .section-head h2 {
            color: #fff;
        }
        .section-dark .section-head p {
            color: rgba(255, 255, 255, .75);
        }
        .scenario-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            margin-bottom: 80px;
            position: relative;
        }
        .scenario-row:last-child {
            margin-bottom: 0;
        }
        .scenario-row.reverse .scenario-image {
            order: 2;
        }
        .scenario-row.reverse .scenario-text {
            order: 1;
        }
        .scenario-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 340px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, .3);
        }
        .scenario-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .scenario-image:hover img {
            transform: scale(1.05);
        }
        .scenario-num {
            position: absolute;
            font-size: 120px;
            font-weight: 900;
            color: rgba(255, 255, 255, .12);
            right: 10px;
            top: -20px;
            line-height: 1;
            z-index: 2;
            pointer-events: none;
            font-variant-numeric: tabular-nums;
        }
        .scenario-text h3 {
            font-size: 1.5rem;
            margin-bottom: 14px;
            color: #fff;
        }
        .scenario-text p {
            color: rgba(255, 255, 255, .75);
            margin-bottom: 24px;
            line-height: 1.8;
        }
        .scenario-text ul {
            display: grid;
            gap: 12px;
        }
        .scenario-text ul li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, .85);
            font-size: .9rem;
        }
        .scenario-text ul li i {
            color: var(--secondary);
            font-size: .75rem;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: rgba(20, 184, 166, .15);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== Rule Detail ===== */
        .rule-detail {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .rule-text h2 {
            margin-bottom: 12px;
        }
        .rule-text>p {
            margin-bottom: 32px;
        }
        .rule-sub {
            margin-bottom: 28px;
        }
        .rule-sub h3 {
            font-size: 1.15rem;
            color: var(--primary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rule-sub h3 i {
            color: var(--secondary);
            font-size: .9rem;
            width: 22px;
        }
        .rule-sub p {
            color: var(--text-sub);
            font-size: .9rem;
            line-height: 1.7;
            padding-left: 32px;
        }
        .rule-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            height: 400px;
        }
        .rule-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .rule-image:hover img {
            transform: scale(1.04);
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 36px 28px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--gradient-main);
            color: #fff;
            font-size: 1.35rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-variant-numeric: tabular-nums;
        }
        .step-item h3 {
            font-size: 1.05rem;
            margin-bottom: 10px;
        }
        .step-item p {
            font-size: .875rem;
            color: var(--text-sub);
            line-height: 1.6;
        }
        .step-arrow {
            position: absolute;
            top: 50%;
            right: -14px;
            transform: translateY(-50%);
            color: var(--secondary);
            font-size: 1rem;
            z-index: 2;
        }
        .step-item:last-child .step-arrow {
            display: none;
        }

        /* ===== Notice Bar ===== */
        .notice-bar {
            background: linear-gradient(90deg, #FFF7ED, #FEF3C7);
            border-top: 1px solid #FCD34D;
            border-bottom: 1px solid #FCD34D;
            padding: 28px 0;
        }
        .notice-bar .container {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .notice-bar .notice-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(249, 115, 22, .12);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .notice-bar p {
            color: #92400E;
            font-size: .9rem;
            flex: 1;
            min-width: 260px;
            line-height: 1.6;
        }
        .notice-bar a {
            color: #B45309;
            font-weight: 600;
            border-bottom: 1px solid #B45309;
            white-space: nowrap;
        }
        .notice-bar a:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-item[open] {
            border-color: rgba(20, 184, 166, .5);
        }
        .faq-item summary {
            padding: 24px 28px;
            display: flex;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            list-style: none;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-main);
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-q-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: rgba(20, 184, 166, .12);
            color: #0B8A7A;
            font-size: .8rem;
            font-weight: 800;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .faq-arrow {
            margin-left: auto;
            color: var(--text-sub);
            transition: var(--transition);
            font-size: .9rem;
        }
        .faq-item[open] .faq-arrow {
            transform: rotate(180deg);
            color: var(--secondary);
        }
        .faq-a {
            padding: 0 28px 28px 74px;
        }
        .faq-a p {
            color: var(--text-sub);
            line-height: 1.7;
            font-size: .9rem;
        }

        /* ===== CTA ===== */
        .cta-panel {
            background: var(--gradient-main);
            border-radius: var(--radius-lg);
            padding: 72px 64px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
        }
        .cta-panel::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
        }
        .cta-panel>* {
            position: relative;
            z-index: 2;
        }
        .cta-panel h2 {
            color: #fff;
            margin-bottom: 16px;
            font-size: clamp(1.6rem, 3vw, 2.3rem);
        }
        .cta-panel p {
            color: rgba(255, 255, 255, .85);
            max-width: 560px;
            margin: 0 auto 36px;
            font-size: 1rem;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .8);
            padding: 60px 0 24px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .logo-text {
            font-size: 1.5rem;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .footer-brand p {
            color: rgba(255, 255, 255, .7);
            font-size: .85rem;
            max-width: 320px;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .footer-contact {
            display: grid;
            gap: 6px;
            font-size: .8rem;
            color: rgba(255, 255, 255, .6);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .footer-links h4 {
            color: #fff;
            font-size: .9rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-links ul {
            display: grid;
            gap: 10px;
        }
        .footer-links li {
            font-size: .85rem;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .7);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: .8rem;
            color: rgba(255, 255, 255, .55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .7);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .play-layout {
                grid-template-columns: 1fr;
            }
            .play-cards {
                grid-template-columns: repeat(3, 1fr);
            }
            .scenario-row {
                gap: 40px;
            }
            .rule-detail {
                gap: 40px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .step-arrow {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .container {
                padding: 0 16px;
            }
            .nav-container {
                border-radius: 24px;
                flex-wrap: wrap;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding: 12px 0 8px;
                border-top: 1px solid rgba(12, 59, 55, .06);
                margin-top: 10px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-link,
            .nav-btn {
                width: 100%;
                justify-content: center;
                padding: 12px 16px;
                border-radius: 12px;
            }
            .nav-btn {
                margin-left: 0;
                margin-top: 4px;
            }
            .nav-toggle {
                display: flex;
            }
            .breadcrumb-wrap {
                padding: 12px 16px 0;
            }
            .page-hero {
                padding: 72px 0 56px;
            }
            .page-hero h1 {
                font-size: clamp(1.7rem, 7vw, 2.4rem);
            }
            .page-hero p {
                font-size: .95rem;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
                margin-top: 40px;
                padding-top: 32px;
            }
            .play-cards {
                grid-template-columns: 1fr;
            }
            .scenario-row {
                grid-template-columns: 1fr;
                gap: 32px;
                margin-bottom: 56px;
            }
            .scenario-row.reverse .scenario-image {
                order: 0;
            }
            .scenario-row.reverse .scenario-text {
                order: 0;
            }
            .scenario-image {
                height: 260px;
            }
            .rule-detail {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .rule-image {
                height: 280px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr !important;
                gap: 32px !important;
            }
            .footer-links {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-panel {
                padding: 48px 28px;
            }
            .cta-panel h2 {
                font-size: 1.5rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
        }
        @media (max-width: 520px) {
            .footer-links {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .play-feature-body {
                padding: 24px;
            }
            .step-item {
                padding: 28px 20px;
            }
            .faq-item summary {
                padding: 20px;
                gap: 12px;
            }
            .faq-a {
                padding: 0 20px 20px 52px;
            }
            .notice-bar .container {
                flex-direction: column;
                text-align: center;
                padding: 20px 16px;
            }
            .notice-bar .notice-icon {
                margin: 0 auto;
            }
            .notice-bar p {
                min-width: 0;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0C3B37;
            --primary-deep: #072A26;
            --secondary: #14B8A6;
            --secondary-light: rgba(20, 184, 166, .12);
            --accent: #F97316;
            --accent-light: rgba(249, 115, 22, .1);
            --bg: #F5F9F7;
            --card-bg: #FFFFFF;
            --text: #1F2937;
            --text-muted: #6B7280;
            --text-on-dark: #F0FDFA;
            --border: rgba(12, 59, 55, .08);
            --border-on-dark: rgba(255, 255, 255, .12);
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-pill: 999px;
            --shadow: 0 8px 30px rgba(7, 42, 38, .08);
            --shadow-hover: 0 16px 40px rgba(7, 42, 38, .14);
            --grad-main: linear-gradient(135deg, #0C3B37 0%, #14B8A6 100%);
            --grad-cta: linear-gradient(135deg, #F97316 0%, #FDBA74 100%);
            --transition: all .3s ease;
            --container: 1200px;
            --space: 96px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }
        h1,h2,h3,h4,h5,h6 {
            font-weight: 700;
            line-height: 1.3;
            margin: 0;
            color: var(--text);
        }
        h1 { font-size: clamp(2.2rem, 5vw, 3.75rem); font-weight: 800; line-height: 1.15; }
        h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 700; }
        h3 { font-size: 1.25rem; font-weight: 600; }
        h4 { font-size: 1.0625rem; font-weight: 600; }
        p { margin: 0; }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        section {
            padding: var(--space) 0;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            font-size: .9375rem;
            font-weight: 600;
            border: 1px solid transparent;
            transition: var(--transition);
            line-height: 1.4;
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(20, 184, 166, .4);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--grad-cta);
            color: #fff;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(249, 115, 22, .3);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            background: transparent;
            color: var(--text-on-dark);
            border-color: rgba(255, 255, 255, .6);
        }
        .btn-secondary:hover {
            background: var(--secondary-light);
            border-color: var(--secondary);
            color: var(--secondary);
        }
        .btn-dark {
            background: var(--primary-deep);
            color: var(--text-on-dark);
        }
        .btn-dark:hover {
            background: var(--primary);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: .875rem;
        }

        /* ===== 悬浮胶囊导航 ===== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1000;
            display: flex;
            justify-content: center;
            padding: 0 20px;
            pointer-events: none;
        }
        .site-header .container {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, .82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-pill);
            padding: 10px 24px;
            box-shadow: 0 4px 20px rgba(7, 42, 38, .08);
            border: 1px solid rgba(255, 255, 255, .5);
            max-width: 1100px;
            transition: var(--transition);
        }
        .site-header.scrolled .container {
            box-shadow: 0 8px 30px rgba(7, 42, 38, .14);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--grad-main);
            color: #fff;
            font-weight: 800;
            font-size: .8125rem;
            letter-spacing: -.5px;
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -.5px;
        }
        .logo-text span {
            color: var(--accent);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: .9375rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }
        .nav-link:hover {
            background: var(--secondary-light);
            color: var(--secondary);
        }
        .nav-link.active {
            background: var(--secondary-light);
            color: var(--secondary);
            font-weight: 600;
        }
        .nav-btn {
            padding: 8px 20px;
            background: var(--grad-cta);
            color: #fff;
            font-size: .875rem;
            font-weight: 600;
            border-radius: var(--radius-pill);
            margin-left: 8px;
            transition: var(--transition);
        }
        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(249, 115, 22, .3);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
        }
        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== 移动端抽屉 ===== */
        .mobile-dropdown {
            display: none;
            position: fixed;
            top: 76px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 420px;
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            box-shadow: var(--shadow-hover);
            padding: 16px 20px;
            z-index: 999;
            border: 1px solid var(--border);
            flex-direction: column;
            gap: 8px;
        }
        .mobile-dropdown.open {
            display: flex;
        }
        .mobile-dropdown a {
            padding: 10px 16px;
            border-radius: 12px;
            font-size: .9375rem;
            color: var(--text);
            transition: var(--transition);
        }
        .mobile-dropdown a:hover,
        .mobile-dropdown a.active {
            background: var(--secondary-light);
            color: var(--secondary);
        }
        .mobile-dropdown .nav-btn {
            margin: 8px 0 0;
            text-align: center;
        }

        /* ===== 压缩版 Hero ===== */
        .page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 100px 0 64px;
            color: var(--text-on-dark);
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(7, 42, 38, .94) 0%, rgba(12, 59, 55, .82) 45%, rgba(12, 59, 55, .45) 100%);
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
            max-width: 900px;
            text-align: center;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: .8125rem;
            color: var(--text-on-dark);
            margin-bottom: 20px;
            backdrop-filter: blur(6px);
        }
        .page-hero h1 {
            color: #fff;
            margin-bottom: 16px;
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
        }
        .page-hero p {
            font-size: 1.0625rem;
            max-width: 700px;
            margin: 0 auto 28px;
            color: rgba(240, 253, 250, .85);
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 分类卡片组 ===== */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: var(--secondary-light);
            color: var(--secondary);
            border-radius: var(--radius-pill);
            font-size: .8125rem;
            font-weight: 600;
            margin-bottom: 16px;
            text-transform: none;
            letter-spacing: .5px;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 48px;
        }
        .section-header h2 {
            color: var(--primary);
        }
        .section-header p {
            color: var(--text-muted);
            max-width: 480px;
            font-size: .9375rem;
        }
        .info-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .info-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .info-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--grad-main);
            opacity: 0;
            transition: var(--transition);
        }
        .info-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .info-card:hover::after {
            opacity: 1;
        }
        .info-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--secondary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--secondary);
            margin-bottom: 20px;
        }
        .info-card h3 {
            margin-bottom: 10px;
            color: var(--text);
        }
        .info-card p {
            font-size: .9375rem;
            color: var(--text-muted);
            margin-bottom: 14px;
        }
        .info-card .card-link {
            color: var(--secondary);
            font-size: .875rem;
            font-weight: 600;
        }
        .info-card .card-link i {
            margin-left: 4px;
            transition: var(--transition);
        }
        .info-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 信息提示条 ===== */
        .notice-bar {
            background: var(--secondary-light);
            border: 1px solid rgba(20, 184, 166, .25);
            border-radius: 16px;
            padding: 16px 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            margin: 40px 0 0;
            flex-wrap: wrap;
        }
        .notice-bar i {
            color: var(--secondary);
            font-size: 1.25rem;
        }
        .notice-bar span {
            font-size: .9375rem;
            color: var(--primary);
            flex: 1;
        }
        .notice-bar a {
            font-size: .875rem;
            font-weight: 600;
            color: var(--accent);
        }

        /* ===== 深色数据条 ===== */
        .data-strip {
            background: var(--primary);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-top: var(--space);
        }
        .data-item {
            text-align: center;
        }
        .data-item .number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: -1px;
            font-variant-numeric: tabular-nums;
        }
        .data-item .unit {
            font-size: 1rem;
            color: rgba(240, 253, 250, .7);
            display: block;
            margin-top: 4px;
        }
        .data-item .label {
            font-size: .875rem;
            color: rgba(240, 253, 250, .85);
            margin-top: 8px;
            display: block;
        }

        /* ===== 长文讲解模块 ===== */
        .content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 64px;
        }
        .content-block.reverse {
            direction: rtl;
        }
        .content-block.reverse>* {
            direction: ltr;
        }
        .content-visual {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow);
            height: 360px;
        }
        .content-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .content-visual:hover img {
            transform: scale(1.03);
        }
        .content-text .step-num {
            font-size: 4.5rem;
            font-weight: 900;
            color: rgba(12, 59, 55, .1);
            line-height: 1;
            display: block;
            margin-bottom: 16px;
            font-variant-numeric: tabular-nums;
        }
        .content-text h3 {
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .content-text p {
            color: var(--text-muted);
            font-size: .9375rem;
            margin-bottom: 16px;
        }
        .content-text ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .content-text ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text);
            font-size: .9375rem;
        }
        .content-text ul li i {
            color: var(--secondary);
            margin-top: 4px;
            font-size: .875rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.active {
            border-color: var(--secondary);
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 28px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            gap: 16px;
            user-select: none;
        }
        .faq-question .q-badge {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--secondary-light);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .8125rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .faq-question .q-text {
            flex: 1;
        }
        .faq-question .faq-icon {
            color: var(--text-muted);
            transition: transform .3s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            color: var(--secondary);
        }
        .faq-answer {
            display: none;
            padding: 0 28px 20px;
            color: var(--text-muted);
            font-size: .9375rem;
            line-height: 1.7;
        }
        .faq-answer p {
            margin-bottom: 8px;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-panel {
            background: var(--grad-main);
            border-radius: var(--radius-xl);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            pointer-events: none;
        }
        .cta-panel h2 {
            color: #fff;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-panel p {
            color: rgba(240, 253, 250, .85);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 1rem;
            position: relative;
        }
        .cta-panel .btn-white {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            position: relative;
            transition: var(--transition);
        }
        .cta-panel .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
        }
        .cta-panel .cta-note {
            font-size: .8125rem;
            color: rgba(240, 253, 250, .6);
            margin-top: 16px;
            position: relative;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-deep);
            color: rgba(240, 253, 250, .75);
            padding: 60px 0 24px;
            margin-top: var(--space);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 1.375rem;
            margin-bottom: 16px;
        }
        .footer-brand .logo-text span {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: .875rem;
            line-height: 1.8;
            color: rgba(240, 253, 250, .6);
            max-width: 320px;
            margin-bottom: 20px;
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: .8125rem;
            color: rgba(240, 253, 250, .55);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .footer-links h4 {
            color: rgba(240, 253, 250, .9);
            font-size: .9375rem;
            margin-bottom: 16px;
        }
        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: .875rem;
            color: rgba(240, 253, 250, .55);
        }
        .footer-links a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-on-dark);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: .8125rem;
            color: rgba(240, 253, 250, .45);
        }
        .footer-bottom a {
            color: rgba(240, 253, 250, .45);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .info-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-block {
                gap: 32px;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                padding: 40px 24px;
            }
        }

        @media (max-width: 768px) {
            section {
                --space: 56px;
            }
            .nav-menu.desktop-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .page-hero {
                padding: 80px 0 48px;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                margin-bottom: 32px;
            }
            .info-card-grid {
                grid-template-columns: 1fr;
            }
            .content-block {
                grid-template-columns: 1fr;
                margin-bottom: 48px;
            }
            .content-visual {
                height: 260px;
            }
            .content-block.reverse {
                direction: ltr;
            }
            .content-block.reverse>* {
                direction: ltr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-links {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-panel {
                padding: 48px 24px;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .notice-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .footer-links {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                max-width: 320px;
            }
        }

        /* ===== 通用 section ===== */
        .section-white {
            background: #fff;
        }
        .section-dark {
            background: var(--primary-deep);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-dark p {
            color: rgba(240, 253, 250, .7);
        }

        /* 面包屑 */
        .breadcrumb {
            padding: 16px 0;
            font-size: .8125rem;
            color: var(--text-muted);
            background: transparent;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb a {
            color: var(--secondary);
        }
        .breadcrumb i {
            font-size: .625rem;
            color: var(--text-muted);
        }

        /* 列表页链接 */
        .page-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--secondary);
            font-weight: 600;
            font-size: .875rem;
        }
        .page-link:hover i {
            transform: translateX(4px);
        }
        .page-link i {
            transition: var(--transition);
        }