/* roulang page: index */
:root {
            --primary: #0EA5E9;
            --secondary: #10B981;
            --accent: #F59E0B;
            --bg-light: #F0F9FF;
            --bg-mint: #ECFDF5;
            --white: #FFFFFF;
            --title: #0F172A;
            --body: #334155;
            --muted: #64748B;
            --border: #E2E8F0;
            --radius: 1rem;
            --radius-lg: 1.5rem;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 16px 50px -12px rgba(14, 165, 233, 0.12);
            --shadow-lg: 0 24px 60px -20px rgba(14, 165, 233, 0.25);
            --gradient: linear-gradient(135deg, #0EA5E9 0%, #10B981 100%);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            background-color: #FFFFFF;
            color: var(--body);
            line-height: 1.75;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        .gradient-text {
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 6px rgba(15, 23, 42, 0.04);
            height: 84px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.15rem;
            box-shadow: 0 6px 16px rgba(14, 165, 233, 0.3);
        }

        .logo-text {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--title);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .nav-link {
            position: relative;
            padding: 0.5rem 1rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--body);
            border-radius: 0.5rem;
            transition: all 0.25s ease;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(14, 165, 233, 0.06);
        }

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

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 1rem;
            right: 1rem;
            bottom: 0;
            height: 2px;
            background: var(--gradient);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .search-box {
            position: relative;
            width: 200px;
        }

        .search-box input {
            width: 100%;
            padding: 0.55rem 1rem 0.55rem 2.5rem;
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 0.875rem;
            background: #F8FAFC;
            transition: all 0.25s ease;
        }

        .search-box input:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.15);
        }

        .search-box .search-icon {
            position: absolute;
            left: 0.9rem;
            top: 50%;
            transform: translateY(-50%);
            width: 16px;
            height: 16px;
            color: var(--muted);
            pointer-events: none;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            background: var(--gradient);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.6rem 1.4rem;
            border-radius: 0.75rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 14px rgba(14, 165, 233, 0.25);
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }

        .btn-primary:hover {
            box-shadow: 0 8px 20px rgba(14, 165, 233, 0.35);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 8px rgba(14, 165, 233, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.6rem 1.4rem;
            border: 1px solid var(--primary);
            border-radius: 0.75rem;
            transition: all 0.3s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: var(--bg-light);
            border-color: #0284C7;
            color: #0284C7;
        }

        .btn-lg {
            padding: 0.85rem 2rem;
            font-size: 1.05rem;
            border-radius: 0.85rem;
        }

        .hamburger {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: 1px solid var(--border);
            background: #fff;
            transition: all 0.2s;
        }

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

        .hamburger svg {
            width: 22px;
            height: 22px;
            color: var(--title);
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: 280px;
            background: #fff;
            z-index: 200;
            padding: 2rem 1.5rem;
            box-shadow: -20px 0 50px rgba(0, 0, 0, 0.1);
            flex-direction: column;
            gap: 0.5rem;
            overflow-y: auto;
        }

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

        .mobile-nav .close-btn {
            align-self: flex-end;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            cursor: pointer;
            color: var(--muted);
            margin-bottom: 1rem;
        }

        .mobile-nav .close-btn:hover {
            background: #F1F5F9;
        }

        .mobile-nav a {
            padding: 0.75rem 1rem;
            border-radius: 0.75rem;
            font-weight: 500;
            color: var(--body);
            font-size: 1rem;
        }

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

        .mobile-nav .btn-primary {
            margin-top: 1rem;
            text-align: center;
        }

        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.4);
            z-index: 150;
        }

        .nav-overlay.open {
            display: block;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 5rem 0 4rem;
            background: linear-gradient(180deg, #F0F9FF 0%, #FFFFFF 100%);
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            top: -120px;
            left: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(14, 165, 233, 0.08);
            pointer-events: none;
        }

        .hero::after {
            content: "";
            position: absolute;
            bottom: -60px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(16, 185, 129, 0.08);
            pointer-events: none;
        }

        .hero .container {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 3rem;
            align-items: center;
            position: relative;
        }

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

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(14, 165, 233, 0.08);
            color: #0284C7;
            font-size: 0.85rem;
            font-weight: 600;
            padding: 0.4rem 1rem;
            border-radius: 999px;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(14, 165, 233, 0.15);
        }

        .hero h1 {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--title);
            letter-spacing: -0.02em;
            margin-bottom: 1.25rem;
        }

        .hero h1 .dot {
            display: inline-block;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--gradient);
            margin: 0 4px;
            vertical-align: middle;
        }

        .hero-desc {
            font-size: 1.125rem;
            color: var(--body);
            line-height: 1.8;
            margin-bottom: 2rem;
            max-width: 520px;
        }

        .hero-ctas {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
        }

        .hero-trust {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            font-size: 0.875rem;
            color: var(--muted);
        }

        .hero-trust .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
            display: inline-block;
            margin-right: 0.35rem;
            vertical-align: middle;
        }

        .hero-visual {
            position: relative;
            padding: 1rem;
        }

        .hero-visual .main-screen {
            background: #fff;
            border-radius: 1.5rem;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            position: relative;
        }

        .hero-visual .main-screen img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        .hero-badge {
            position: absolute;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border-radius: 1rem;
            padding: 0.9rem 1.2rem;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 0.75rem;
            border: 1px solid rgba(255, 255, 255, 0.6);
        }

        .hero-badge-top {
            top: 1.5rem;
            right: -0.5rem;
        }

        .hero-badge-bottom {
            bottom: 1.5rem;
            left: -0.5rem;
        }

        .badge-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .badge-icon.warn {
            background: linear-gradient(135deg, #F59E0B, #F97316);
        }

        .badge-icon.green {
            background: linear-gradient(135deg, #10B981, #0EA5E9);
        }

        .hero-badge .badge-label {
            font-size: 0.75rem;
            color: var(--muted);
            display: block;
            line-height: 1.3;
        }

        .hero-badge .badge-value {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--title);
            line-height: 1.3;
            display: block;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 3.5rem;
            padding-top: 2rem;
            border-top: 1px solid var(--border);
        }

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

        .hero-stat .stat-num {
            font-size: clamp(1.5rem, 2.5vw, 2.2rem);
            font-weight: 800;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .hero-stat .stat-label {
            font-size: 0.875rem;
            color: var(--muted);
            margin-top: 0.25rem;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 5rem 0;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-mint {
            background: linear-gradient(180deg, var(--bg-mint) 0%, #FFFFFF 100%);
        }

        .section-head {
            text-align: center;
            margin-bottom: 3rem;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            background: rgba(14, 165, 233, 0.08);
            color: #0284C7;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 0.35rem 0.9rem;
            border-radius: 999px;
            margin-bottom: 1rem;
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .section-title {
            font-size: clamp(1.4rem, 2.5vw, 2.2rem);
            font-weight: 700;
            color: var(--title);
            line-height: 1.3;
            margin-bottom: 0.75rem;
        }

        .section-desc {
            color: var(--muted);
            font-size: 1rem;
            line-height: 1.7;
        }

        /* ===== 卖点 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 1.5rem;
        }

        .feature-card {
            background: #fff;
            border-radius: 1rem;
            border: 1px solid var(--border);
            padding: 2rem;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            grid-column: span 4;
        }

        .feature-card.large {
            grid-column: span 6;
            display: flex;
            align-items: flex-start;
            gap: 1.25rem;
        }

        .feature-card.large .feature-icon-wrap {
            flex-shrink: 0;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(14, 165, 233, 0.3);
        }

        .feature-icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 1rem;
            transition: all 0.35s ease;
        }

        .feature-icon-wrap.tint-sky {
            background: linear-gradient(135deg, #0EA5E9, #38BDF8);
        }

        .feature-icon-wrap.tint-green {
            background: linear-gradient(135deg, #10B981, #34D399);
        }

        .feature-icon-wrap.tint-orange {
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
        }

        .feature-card:hover .feature-icon-wrap {
            transform: rotate(-6deg) scale(1.05);
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 0.5rem;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 0.75rem;
        }

        .feature-card .learn-more {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }

        .feature-card .learn-more:hover {
            gap: 0.5rem;
        }

        /* ===== 演示 ===== */
        .demo-wrap {
            background: #fff;
            border-radius: 1.5rem;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            max-width: 960px;
            margin: 0 auto;
        }

        .browser-bar {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1rem;
            background: #F8FAFC;
            border-bottom: 1px solid var(--border);
        }

        .browser-dots {
            display: flex;
            gap: 0.35rem;
        }

        .browser-dots span {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            display: block;
        }

        .browser-dots span:nth-child(1) {
            background: #EF4444;
        }

        .browser-dots span:nth-child(2) {
            background: #F59E0B;
        }

        .browser-dots span:nth-child(3) {
            background: #10B981;
        }

        .browser-address {
            flex: 1;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 0.8rem;
            padding: 0.3rem 1rem;
            color: var(--muted);
            text-align: center;
        }

        .demo-slider {
            position: relative;
        }

        .demo-slider .demo-img {
            width: 100%;
            height: 520px;
            object-fit: cover;
            transition: opacity 0.4s ease;
        }

        .demo-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--title);
            transition: all 0.25s;
            z-index: 5;
        }

        .demo-arrow:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .demo-arrow.prev {
            left: 1rem;
        }

        .demo-arrow.next {
            right: 1rem;
        }

        .demo-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            padding: 2.5rem 2rem;
            background: #fff;
            border-top: 1px solid var(--border);
        }

        .demo-step {
            text-align: center;
            position: relative;
        }

        .demo-step::before {
            content: "";
            position: absolute;
            top: 28px;
            right: -25%;
            width: 50%;
            border-top: 2px dashed var(--border);
            z-index: 1;
        }

        .demo-step:last-child::before {
            display: none;
        }

        .demo-step-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--gradient);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin: 0 auto 1rem;
            position: relative;
            z-index: 2;
            box-shadow: 0 8px 20px rgba(14, 165, 233, 0.25);
        }

        .demo-step h4 {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--title);
            margin-bottom: 0.25rem;
        }

        .demo-step p {
            font-size: 0.875rem;
            color: var(--muted);
        }

        /* ===== 证据 ===== */
        .evidence-badges {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-bottom: 3rem;
        }

        .evidence-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #F8FAFC;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0.5rem 1.1rem;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--title);
            transition: all 0.25s;
        }

        .evidence-badge:hover {
            border-color: var(--primary);
            background: var(--bg-light);
        }

        .evidence-badge svg {
            width: 16px;
            height: 16px;
            color: var(--primary);
        }

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

        .testimonial-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 1rem;
            padding: 1.75rem;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .testimonial-stars {
            display: flex;
            gap: 0.2rem;
            color: var(--accent);
            margin-bottom: 0.75rem;
        }

        .testimonial-stars svg {
            width: 16px;
            height: 16px;
            fill: currentColor;
        }

        .testimonial-card blockquote {
            font-size: 0.9rem;
            color: var(--body);
            line-height: 1.8;
            margin-bottom: 1.25rem;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
        }

        .avatar-sky {
            background: linear-gradient(135deg, #0EA5E9, #38BDF8);
        }

        .avatar-green {
            background: linear-gradient(135deg, #10B981, #34D399);
        }

        .avatar-orange {
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
        }

        .testimonial-author .author-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--title);
        }

        .testimonial-author .author-role {
            font-size: 0.8rem;
            color: var(--muted);
        }

        .data-report {
            background: #fff;
            border-radius: 1rem;
            border: 1px solid var(--border);
            padding: 2rem;
        }

        .report-item {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            padding: 1rem 0;
            border-bottom: 1px solid var(--border);
        }

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

        .report-label {
            font-size: 0.9rem;
            color: var(--title);
            font-weight: 600;
            min-width: 120px;
        }

        .report-bar {
            flex: 1;
            height: 8px;
            background: #F1F5F9;
            border-radius: 4px;
            overflow: hidden;
        }

        .report-fill {
            height: 100%;
            background: var(--gradient);
            border-radius: 4px;
        }

        .report-num {
            font-size: 1rem;
            font-weight: 700;
            color: var(--title);
            min-width: 60px;
            text-align: right;
        }

        /* ===== 新闻/资讯 ===== */
        .news-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }

        .news-tabs {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .news-tab {
            padding: 0.4rem 1.1rem;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            background: #F1F5F9;
            color: var(--body);
            cursor: pointer;
            border: 1px solid transparent;
            transition: all 0.25s;
        }

        .news-tab:hover {
            background: var(--bg-light);
            color: var(--primary);
        }

        .news-tab.active {
            background: var(--primary);
            color: #fff;
        }

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

        .news-card {
            display: block;
            background: #fff;
            border-radius: 1rem;
            border: 1px solid var(--border);
            padding: 1.5rem;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
            height: 100%;
        }

        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(14, 165, 233, 0.3);
        }

        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 0.75rem;
        }

        .news-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--bg-light);
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--muted);
        }

        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--title);
            line-height: 1.6;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card p {
            font-size: 0.875rem;
            color: var(--muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 1rem;
        }

        .news-more {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }

        .news-more:hover {
            gap: 0.5rem;
        }

        .empty-state {
            border: 2px dashed var(--border);
            border-radius: 1rem;
            padding: 3rem 2rem;
            text-align: center;
            color: var(--muted);
            font-size: 0.95rem;
            max-width: 500px;
            margin: 0 auto;
        }

        /* ===== 价格 ===== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            align-items: stretch;
        }

        .price-card {
            background: #fff;
            border-radius: 1rem;
            border: 1px solid var(--border);
            padding: 2rem;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            position: relative;
            transition: all 0.3s;
        }

        .price-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .price-card.popular {
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-md);
            transform: scale(1.03);
        }

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

        .popular-tag {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--gradient);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.25rem 1rem;
            border-radius: 999px;
            white-space: nowrap;
        }

        .price-name {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 0.25rem;
        }

        .price-desc {
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 1.25rem;
        }

        .price-amount {
            font-size: 2.2rem;
            font-weight: 800;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1.5rem;
        }

        .price-amount .currency {
            font-size: 1rem;
            font-weight: 600;
            margin-right: 0.2rem;
        }

        .price-features {
            margin-bottom: 1.5rem;
            flex: 1;
        }

        .price-features li {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.9rem;
            color: var(--body);
            padding: 0.4rem 0;
        }

        .feature-yes {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(16, 185, 129, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 0.7rem;
            flex-shrink: 0;
        }

        .feature-no {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: #F1F5F9;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--muted);
            font-size: 0.7rem;
            flex-shrink: 0;
        }

        .price-card .btn-primary,
        .price-card .btn-secondary {
            width: 100%;
            margin-top: auto;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 1rem;
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: all 0.3s;
        }

        .faq-item:hover {
            border-color: rgba(14, 165, 233, 0.3);
        }

        .faq-item.open {
            border-color: rgba(14, 165, 233, 0.4);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--title);
            user-select: none;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #F1F5F9;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--muted);
            font-size: 1rem;
            flex-shrink: 0;
            transition: all 0.35s;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer p {
            padding: 0 1.5rem 1.25rem;
            font-size: 0.9rem;
            color: var(--body);
            line-height: 1.8;
        }

        /* ===== CTA 表单 ===== */
        .cta-wrap {
            background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-mint) 100%);
            border-radius: 1.5rem;
            padding: 3.5rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            border: 1px solid var(--border);
        }

        .cta-content h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 0.75rem;
        }

        .cta-content p {
            color: var(--body);
            line-height: 1.8;
            font-size: 1rem;
        }

        .contact-list {
            margin-top: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .contact-list li {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.9rem;
            color: var(--body);
        }

        .contact-list li svg {
            width: 18px;
            height: 18px;
            color: var(--primary);
        }

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

        .contact-form label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 0.35rem;
        }

        .contact-form input,
        .contact-form select,
        .contact-form textarea {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #CBD5E1;
            border-radius: 0.75rem;
            background: #fff;
            font-size: 0.9rem;
            color: var(--title);
            transition: all 0.25s;
        }

        .contact-form input:focus,
        .contact-form select:focus,
        .contact-form textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.12);
        }

        .contact-form textarea {
            min-height: 80px;
            resize: vertical;
        }

        .contact-form .btn-primary {
            width: 100%;
            padding: 0.8rem;
            margin-top: 0.5rem;
        }

        .form-agree {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--muted);
            margin-top: 0.75rem;
        }

        .form-agree input {
            width: auto;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0F172A;
            color: rgba(255, 255, 255, 0.9);
            padding: 4rem 0 2rem;
            margin-top: 5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }

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

        .footer-brand p {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin-top: 1rem;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col a {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            transition: all 0.2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== 浮动 CTA ===== */
        .floating-cta {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 90;
            background: var(--gradient);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.75rem 1.5rem;
            border-radius: 999px;
            box-shadow: 0 8px 24px rgba(14, 165, 233, 0.35);
            display: flex;
            align-items: center;
            gap: 0.4rem;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all 0.4s;
        }

        .floating-cta.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .floating-cta:hover {
            box-shadow: 0 12px 30px rgba(14, 165, 233, 0.5);
            transform: translateY(-2px);
        }

        .floating-cta:focus-visible {
            outline: 3px solid rgba(14, 165, 233, 0.5);
            outline-offset: 2px;
        }

        @keyframes floatGlow {
            0% {
                box-shadow: 0 8px 24px rgba(14, 165, 233, 0.35);
            }
            50% {
                box-shadow: 0 8px 32px rgba(14, 165, 233, 0.55), 0 0 20px rgba(14, 165, 233, 0.3);
            }
            100% {
                box-shadow: 0 8px 24px rgba(14, 165, 233, 0.35);
            }
        }

        .floating-cta.visible {
            animation: floatGlow 3s ease-in-out infinite;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }
            .search-box {
                width: 150px;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-card,
            .feature-card.large {
                grid-column: span 1;
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: 70px;
            }
            .header-actions .btn-primary {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .search-box {
                display: none;
            }
            .hero {
                padding: 3rem 0 3rem;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-content {
                padding-right: 0;
                text-align: center;
            }
            .hero-desc {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-ctas {
                justify-content: center;
            }
            .hero-trust {
                justify-content: center;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
                margin-top: 2rem;
            }
            .hero-visual .main-screen img {
                height: 250px;
            }
            .hero-badge {
                padding: 0.6rem 0.8rem;
            }
            .demo-steps {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .demo-step::before {
                display: none;
            }
            .demo-slider .demo-img {
                height: 260px;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
                max-width: 400px;
                margin: 0 auto;
            }
            .price-card.popular {
                transform: scale(1);
            }
            .cta-wrap {
                grid-template-columns: 1fr;
                padding: 2rem 1.5rem;
                gap: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .logo-text {
                font-size: 1rem;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .btn-lg {
                padding: 0.7rem 1.5rem;
                font-size: 0.95rem;
            }
            .section {
                padding: 3rem 0;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .floating-cta {
                bottom: 16px;
                right: 16px;
                padding: 0.6rem 1rem;
                font-size: 0.85rem;
            }
        }

        /* 焦点可见性 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(14, 165, 233, 0.4);
            outline-offset: 2px;
        }

/* roulang page: article */
:root {
    --primary: #0EA5E9;
    --primary-dark: #0284C7;
    --primary-active: #0369A1;
    --secondary: #10B981;
    --accent: #F59E0B;
    --ink: #0F172A;
    --body: #334155;
    --muted: #64748B;
    --line: #E2E8F0;
    --bg-light: #F0F9FF;
    --bg-mint: #ECFDF5;
    --gradient: linear-gradient(135deg, #0EA5E9 0%, #10B981 100%);
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --shadow-card: 0 16px 50px -12px rgba(14,165,233,0.12);
    --shadow-hover: 0 24px 60px -20px rgba(14,165,233,0.25);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
    color: var(--body);
    background: #FFFFFF;
    line-height: 1.75;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease, box-shadow .25s ease, transform .25s ease; }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    height: 80px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--gradient);
    color: #fff;
    font-size: 1.25rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(14,165,233,0.28);
}
.logo-text {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: -0.01em;
    white-space: nowrap;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 36px;
    margin-left: 12px;
}
.nav-link {
    position: relative;
    font-size: 0.96rem;
    font-weight: 500;
    color: var(--body);
    padding: 8px 0;
    transition: color .25s ease;
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .3s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { transform: scaleX(1); }

.header-tools {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}
.search-box {
    position: relative;
    display: flex;
    align-items: center;
}
.search-box i {
    position: absolute;
    left: 14px;
    color: var(--muted);
    font-size: 0.9rem;
    pointer-events: none;
}
.search-box input {
    width: 180px;
    height: 40px;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 0 16px 0 40px;
    font-size: 0.875rem;
    color: var(--ink);
    background: #F8FAFC;
    transition: border-color .25s ease, box-shadow .25s ease, background .25s ease;
}
.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(14,165,233,0.12);
    background: #fff;
}
.search-box input::placeholder { color: #94A3B8; }

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--gradient);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    cursor: pointer;
    transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
    box-shadow: 0 6px 18px rgba(14,165,233,0.25);
}
.btn-primary:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(14,165,233,0.32);
    filter: brightness(1.04);
}
.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(14,165,233,0.22);
}
.btn-primary.btn-sm { padding: 9px 18px; font-size: 0.875rem; border-radius: 10px; }
.btn-primary.btn-lg { padding: 16px 34px; font-size: 1.05rem; }

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: #fff;
    color: var(--primary);
    font-size: 0.95rem;
    font-weight: 600;
    border: 1px solid var(--primary);
    border-radius: 12px;
    padding: 10px 22px;
    cursor: pointer;
    transition: background .25s ease, border-color .25s ease, transform .25s ease;
}
.btn-outline:hover {
    background: var(--bg-light);
    border-color: var(--primary-dark);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

.mobile-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    color: var(--ink);
    font-size: 1.1rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: border-color .25s ease;
}
.mobile-toggle:hover { border-color: var(--primary); color: var(--primary); }

.mobile-menu {
    display: none;
    padding: 16px 24px 28px;
    border-top: 1px solid var(--line);
    background: #fff;
}
.mobile-menu.open { display: block; }
.mobile-link {
    display: block;
    padding: 12px 0;
    font-size: 1rem;
    font-weight: 500;
    color: var(--body);
    border-bottom: 1px solid #F1F5F9;
}
.mobile-link:hover { color: var(--primary); }
.mobile-search {
    margin: 16px 0;
    position: relative;
}
.mobile-search input {
    width: 100%;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 0 16px;
    font-size: 0.95rem;
}
.mobile-search input:focus { outline: none; border-color: var(--primary); }
.btn-block { width: 100%; }

/* ---------- Page Hero ---------- */
.page-hero {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 64px 0 72px;
    overflow: hidden;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.94), rgba(240,249,255,0.88));
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}
.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.86rem;
    color: var(--muted);
    margin-bottom: 20px;
}
.breadcrumb a { color: var(--muted); transition: color .2s ease; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #CBD5E1; }
.breadcrumb .current { color: var(--primary); font-weight: 500; }

.page-hero h1 {
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 800;
    color: var(--ink);
    line-height: 1.3;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}
.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 4px;
    font-size: 0.875rem;
    color: var(--muted);
}
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-meta i { color: var(--primary); font-size: 0.85rem; }

/* ---------- Article Body ---------- */
.article-section {
    padding: 56px 0 0;
}
.article-layout {
    max-width: 720px;
    margin: 0 auto;
}
.article-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    padding: 48px;
}
.article-body { font-size: 1rem; line-height: 1.85; color: var(--body); }
.article-body > * + * { margin-top: 1.25em; }
.article-body p { margin: 1.25em 0; }
.article-body h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--ink);
    border-left: 4px solid var(--primary);
    padding-left: 14px;
    margin: 2em 0 1em;
    line-height: 1.4;
}
.article-body h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--ink);
    margin: 1.8em 0 0.8em;
}
.article-body h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--ink);
    margin: 1.5em 0 0.6em;
}
.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--primary-dark); text-decoration-thickness: 2px; }
.article-body img { border-radius: var(--radius-lg); margin: 1.8em 0; box-shadow: var(--shadow-card); }
.article-body blockquote {
    border-left: 4px solid var(--secondary);
    background: var(--bg-mint);
    padding: 16px 24px;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    color: #14532D;
    margin: 1.6em 0;
}
.article-body ul, .article-body ol { margin: 1.2em 0; padding-left: 1.5em; }
.article-body ul li { list-style: disc; margin: 0.5em 0; }
.article-body ol li { list-style: decimal; margin: 0.5em 0; }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.6em 0; font-size: 0.92rem; }
.article-body th { background: var(--bg-light); font-weight: 600; color: var(--ink); text-align: left; }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 10px 14px; }
.article-body code {
    background: #F1F5F9;
    color: #0F766E;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.9em;
}
.article-body pre {
    background: #0F172A;
    color: #E2E8F0;
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    overflow-x: auto;
    margin: 1.6em 0;
}
.article-body pre code { background: transparent; color: inherit; padding: 0; }

/* ---------- Tags ---------- */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
}
.article-tags .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-light);
    border: 1px solid #BAE6FD;
    color: var(--primary-dark);
    font-size: 0.82rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 999px;
    transition: background .2s ease, transform .2s ease;
}
.article-tags .tag:hover { background: #E0F2FE; transform: translateY(-1px); }
.article-tags .tag i { font-size: 0.75rem; }

/* ---------- End CTA ---------- */
.end-cta {
    margin: 40px 0 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #ECFDF5 100%);
    border-radius: var(--radius-xl);
    padding: 28px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    border: 1px solid #BAE6FD;
}
.end-cta h3 { font-size: 1.15rem; font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.end-cta p { font-size: 0.9rem; color: var(--muted); }

/* ---------- Related ---------- */
.related-section {
    padding: 64px 0 24px;
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 32px;
}
.section-head h2 {
    font-size: clamp(1.35rem, 2.5vw, 1.9rem);
    font-weight: 700;
    color: var(--ink);
    line-height: 1.3;
}
.section-head .head-sub {
    color: var(--muted);
    font-size: 0.9rem;
    margin-top: 6px;
}
.section-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}
.section-link:hover { color: var(--primary-dark); gap: 10px; }

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.related-card {
    display: block;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
    box-shadow: 0 4px 16px rgba(15,23,42,0.04);
}
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(14,165,233,0.35);
    color: var(--ink);
}
.related-thumb {
    height: 160px;
    overflow: hidden;
    position: relative;
}
.related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.related-card:hover .related-thumb img { transform: scale(1.05); }
.related-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15,23,42,0.08), transparent 50%);
}
.related-info { padding: 18px 20px 20px; }
.related-info h4 {
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.9em;
    margin-bottom: 10px;
    transition: color .25s ease;
}
.related-card:hover .related-info h4 { color: var(--primary); }
.related-date {
    font-size: 0.8rem;
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.empty-box {
    border: 2px dashed #CBD5E1;
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    color: var(--muted);
    background: #F8FAFC;
}
.empty-box i { font-size: 2.2rem; color: #CBD5E1; margin-bottom: 12px; display: block; }
.empty-box p { font-size: 0.95rem; }

/* ---------- CTA Section ---------- */
.cta-section {
    padding: 64px 0 80px;
}
.cta-card {
    background: linear-gradient(135deg, #F0F9FF 0%, #ECFDF5 100%);
    border: 1px solid #BAE6FD;
    border-radius: 24px;
    padding: 48px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.cta-left h2 {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 12px;
    line-height: 1.3;
}
.cta-left p { color: var(--body); font-size: 0.98rem; }
.cta-features {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}
.cta-features span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,255,255,0.75);
    border: 1px solid #BAE6FD;
    color: var(--primary-dark);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 999px;
}
.cta-form {
    background: #fff;
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--shadow-card);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-input, .form-textarea {
    width: 100%;
    border: 1px solid #CBD5E1;
    border-radius: 10px;
    padding: 12px 14px;
    font-size: 0.9rem;
    color: var(--ink);
    background: #F8FAFC;
    transition: border-color .25s ease, box-shadow .25s ease;
}
.form-textarea { resize: vertical; margin-top: 12px; }
.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(14,165,233,0.12);
    background: #fff;
}
.cta-form .btn-primary { width: 100%; margin-top: 16px; }

/* ---------- Footer ---------- */
.site-footer {
    background: #0F172A;
    color: rgba(255,255,255,0.9);
    padding: 64px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
}
.footer-brand .logo {
    margin-bottom: 14px;
}
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.65); line-height: 1.7; max-width: 280px; }
.footer-col h4 {
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 18px;
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a {
    color: rgba(255,255,255,0.65);
    font-size: 0.9rem;
    transition: color .25s ease, padding-left .25s ease;
}
.footer-col ul li a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 22px 0;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

/* ---------- Empty state ---------- */
.empty-state {
    border: 2px dashed #CBD5E1;
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    color: var(--muted);
    background: #F8FAFC;
}
.empty-state i { font-size: 2.2rem; color: #CBD5E1; margin-bottom: 12px; display: block; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .main-nav { gap: 24px; }
    .header-tools .search-box { display: none; }
}
@media (max-width: 900px) {
    .main-nav { display: none; }
    .header-tools .btn-primary { display: none; }
    .mobile-toggle { display: flex; }
    .header-inner { height: 72px; }
    .related-grid { grid-template-columns: 1fr; gap: 20px; }
    .cta-card { grid-template-columns: 1fr; gap: 24px; padding: 32px 24px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 640px) {
    .container { padding: 0 16px; }
    .page-hero { padding: 44px 0 52px; }
    .article-card { padding: 24px 20px; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .cta-card { padding: 28px 20px; }
    .end-cta { flex-direction: column; align-items: flex-start; }
    .page-hero h1 { font-size: 1.5rem; }
    .article-meta { gap: 12px; font-size: 0.82rem; }
    .related-thumb { height: 140px; }
    .logo-text { font-size: 0.95rem; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 10px; }
}

/* roulang page: category1 */
:root {
            --primary: #0EA5E9;
            --secondary: #10B981;
            --accent: #F59E0B;
            --bg-default: #FFFFFF;
            --bg-sky: #F0F9FF;
            --bg-mint: #ECFDF5;
            --text-title: #0F172A;
            --text-body: #334155;
            --text-dim: #64748B;
            --border: #E2E8F0;
            --primary-hover: #0284C7;
            --primary-active: #0369A1;
            --radius-card: 1rem;
            --radius-image: 1.5rem;
            --shadow-card: 0 16px 50px -12px rgba(14, 165, 233, 0.12);
            --shadow-card-hover: 0 24px 60px -20px rgba(14, 165, 233, 0.25);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-family);
            background: var(--bg-default);
            color: var(--text-body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(15, 23, 42, .04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            gap: 32px;
            height: 84px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 20px -6px rgba(14, 165, 233, .4);
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-title);
            letter-spacing: -.2px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }

        .nav-link {
            position: relative;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 10px;
            transition: color .2s ease, background .2s ease;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(14, 165, 233, .06);
        }

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

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: -2px;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-box .search-icon {
            position: absolute;
            left: 14px;
            font-size: 14px;
            color: var(--text-dim);
            pointer-events: none;
        }

        .search-box input {
            width: 180px;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 16px 0 40px;
            font-size: 14px;
            background: #F8FAFC;
            color: var(--text-body);
            outline: none;
            transition: border-color .2s, box-shadow .2s, width .3s;
        }

        .search-box input:focus {
            border-color: var(--primary);
            width: 220px;
            box-shadow: 0 0 0 4px rgba(14, 165, 233, .12);
            background: #fff;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border-radius: 12px;
            cursor: pointer;
            border: none;
            transition: all .2s ease;
            padding: 0 20px;
            height: 42px;
            font-size: 14px;
            line-height: 1;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: #fff;
            box-shadow: 0 8px 20px -8px rgba(14, 165, 233, .5);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px -8px rgba(14, 165, 233, .6);
            filter: brightness(1.05);
        }

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

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

        .btn-outline:hover {
            background: var(--bg-sky);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px -10px rgba(14, 165, 233, .3);
        }

        .btn-lg {
            height: 54px;
            padding: 0 32px;
            font-size: 16px;
            border-radius: 14px;
        }

        .btn-sm {
            height: 38px;
            padding: 0 16px;
            font-size: 13px;
            border-radius: 10px;
        }

        .mobile-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: 12px;
            font-size: 18px;
            color: var(--text-title);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all .2s;
        }

        .mobile-toggle:hover {
            background: var(--bg-sky);
            color: var(--primary);
        }

        .mobile-menu {
            display: none;
            padding: 16px 24px 24px;
            border-top: 1px solid var(--border);
            background: #fff;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-link {
            display: block;
            padding: 12px 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-bottom: 1px solid #F1F5F9;
        }

        .mobile-link:hover,
        .mobile-link.active {
            color: var(--primary);
        }

        .mobile-search {
            margin: 16px 0;
        }

        .mobile-search input {
            width: 100%;
            height: 44px;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 0 16px;
            font-size: 14px;
            background: #F8FAFC;
            outline: none;
        }

        .mobile-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(14, 165, 233, .1);
        }

        .btn-block {
            width: 100%;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: linear-gradient(180deg, #F0F9FF 0%, #FFFFFF 100%);
            padding: 80px 0 72px;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: .18;
            pointer-events: none;
        }

        .hero-shape {
            position: absolute;
            border-radius: 50%;
            background: rgba(14, 165, 233, .12);
            pointer-events: none;
        }

        .hero-shape-1 {
            width: 300px;
            height: 300px;
            top: -80px;
            right: -60px;
        }

        .hero-shape-2 {
            width: 160px;
            height: 160px;
            bottom: 40px;
            left: -40px;
            background: rgba(16, 185, 129, .1);
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 6fr 5fr;
            gap: 48px;
            align-items: center;
        }

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

        .breadcrumb a {
            color: var(--text-dim);
        }

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

        .breadcrumb i {
            font-size: 12px;
            color: #94A3B8;
        }

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

        .hero h1 {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-title);
            margin: 0 0 20px;
            letter-spacing: -1px;
        }

        .hero h1 .dot {
            display: inline-block;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            margin: 0 4px;
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-body);
            max-width: 520px;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .hero-trust {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-dim);
            flex-wrap: wrap;
        }

        .hero-trust span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-trust .dot-sep {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
        }

        .hero-visual {
            position: relative;
        }

        .hero-card-main {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 32px 70px -20px rgba(14, 165, 233, .35);
            border: 1px solid rgba(255, 255, 255, .6);
        }

        .hero-card-main img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        .hero-badge {
            position: absolute;
            background: rgba(255, 255, 255, .85);
            backdrop-filter: blur(8px);
            border-radius: 16px;
            padding: 12px 16px;
            box-shadow: 0 12px 30px -8px rgba(15, 23, 42, .15);
            border: 1px solid rgba(255, 255, 255, .9);
        }

        .hero-badge-top {
            top: 16px;
            right: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hero-badge-bottom {
            bottom: 16px;
            left: 16px;
        }

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

        .badge-label {
            font-size: 12px;
            color: var(--text-dim);
            line-height: 1.3;
        }

        .badge-num {
            font-size: 22px;
            font-weight: 800;
            line-height: 1.2;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-stats {
            margin-top: 56px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            border-top: 1px solid #E2E8F0;
            padding-top: 32px;
        }

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

        .hero-stat .stat-icon {
            font-size: 18px;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .hero-stat .stat-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-title);
            line-height: 1.2;
        }

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

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--bg-sky);
        }

        .section-mint {
            background: var(--bg-mint);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(14, 165, 233, .08);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 800;
            color: var(--text-title);
            line-height: 1.3;
            margin: 0 0 16px;
            letter-spacing: -.5px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-dim);
            max-width: 640px;
            line-height: 1.75;
        }

        .section-header {
            margin-bottom: 48px;
        }

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

        .section-header.center .section-desc {
            margin: 0 auto;
        }

        /* ===== Cards ===== */
        .card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(14, 165, 233, .3);
        }

        .card-pad {
            padding: 32px;
        }

        .card-icon {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: #fff;
            margin-bottom: 20px;
            transition: transform .3s ease;
        }

        .card:hover .card-icon {
            transform: scale(1.06) rotate(-3deg);
        }

        .card-icon-blue {
            background: linear-gradient(135deg, #0EA5E9, #38BDF8);
        }

        .card-icon-green {
            background: linear-gradient(135deg, #10B981, #34D399);
        }

        .card-icon-amber {
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
        }

        .card-icon-soft-blue {
            background: rgba(14, 165, 233, .15);
            color: var(--primary);
        }

        .card-icon-soft-green {
            background: rgba(16, 185, 129, .15);
            color: var(--secondary);
        }

        .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-title);
            margin: 0 0 8px;
        }

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

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 12px;
            transition: gap .2s;
        }

        .card-link:hover {
            gap: 10px;
            color: var(--primary-hover);
        }

        /* Feature cards layout */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card-large {
            grid-column: span 3;
            display: grid;
            grid-template-columns: 96px 1fr auto;
            align-items: center;
            gap: 32px;
            padding: 40px;
        }

        .feature-card-medium {
            grid-column: span 2;
        }

        /* ===== Entry ways ===== */
        .entry-way {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
            margin-bottom: 24px;
        }

        .entry-way-reverse {
            grid-template-columns: 1fr 2fr;
        }

        .entry-card {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s, transform .3s;
            background: #fff;
        }

        .entry-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .entry-card-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: .12;
        }

        .entry-card-content {
            position: relative;
            z-index: 1;
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 180px;
        }

        .entry-step-num {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(14, 165, 233, .1);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            align-self: flex-start;
            margin-bottom: 12px;
        }

        .entry-card-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .entry-card-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            max-width: 320px;
        }

        /* ===== Trust / Evidence ===== */
        .trust-wrap {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 40px;
            align-items: start;
        }

        .trust-badges {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 28px;
            box-shadow: var(--shadow-card);
        }

        .trust-badge-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid #F1F5F9;
        }

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

        .trust-badge-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(14, 165, 233, .12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 17px;
            flex-shrink: 0;
        }

        .trust-badge-item .label {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-title);
        }

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

        .testimonial-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .testimonial-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: transform .3s, box-shadow .3s;
        }

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

        .testimonial-stars {
            color: var(--accent);
            font-size: 14px;
            margin-bottom: 8px;
            letter-spacing: 2px;
        }

        .testimonial-text {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .testimonial-user .name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-title);
        }

        .testimonial-user .role {
            font-size: 12px;
            color: var(--text-dim);
        }

        .data-report {
            margin-top: 24px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 24px 28px;
            box-shadow: var(--shadow-card);
        }

        .data-bar-item {
            margin-bottom: 16px;
        }

        .data-bar-head {
            display: flex;
            justify-content: space-between;
            font-size: 14px;
            margin-bottom: 8px;
        }

        .data-bar-head .k {
            color: var(--text-body);
            font-weight: 500;
        }

        .data-bar-head .v {
            font-weight: 700;
            color: var(--text-title);
        }

        .data-bar {
            height: 8px;
            border-radius: 99px;
            background: #F1F5F9;
            overflow: hidden;
        }

        .data-bar-fill {
            height: 100%;
            border-radius: 99px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }

        /* ===== Steps ===== */
        .steps-wrap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }

        .steps-wrap::before {
            content: "";
            position: absolute;
            top: 52px;
            left: 16%;
            right: 16%;
            border-top: 2px dashed #CBD5E1;
            z-index: 0;
        }

        .step-item {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 24px 16px 0;
        }

        .step-circle {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            box-shadow: 0 10px 28px -8px rgba(14, 165, 233, .5);
        }

        .step-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .step-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            max-width: 260px;
            margin: 0 auto;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 18px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color .3s, box-shadow .3s;
        }

        .faq-item:hover {
            border-color: rgba(14, 165, 233, .3);
            box-shadow: 0 8px 30px -12px rgba(14, 165, 233, .15);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            transition: background .2s;
        }

        .faq-question:hover {
            background: #F8FAFC;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(14, 165, 233, .1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
            transition: transform .3s ease, background .3s;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
            padding: 0 24px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 24px;
        }

        /* ===== CTA / Contact ===== */
        .cta-box {
            background: linear-gradient(135deg, #F0F9FF 0%, #ECFDF5 100%);
            border-radius: 32px;
            padding: 48px;
            display: grid;
            grid-template-columns: 5fr 5fr;
            gap: 48px;
            border: 1px solid rgba(14, 165, 233, .15);
            box-shadow: 0 20px 60px -24px rgba(14, 165, 233, .25);
        }

        .cta-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-title);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-desc {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .cta-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .cta-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text-body);
        }

        .cta-list li i {
            color: var(--secondary);
            font-size: 14px;
        }

        .contact-form {
            background: #fff;
            border-radius: 24px;
            padding: 32px;
            box-shadow: 0 20px 50px -20px rgba(14, 165, 233, .25);
            border: 1px solid var(--border);
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 6px;
        }

        .form-input {
            width: 100%;
            height: 44px;
            border: 1px solid #CBD5E1;
            border-radius: 12px;
            padding: 0 16px;
            font-size: 14px;
            color: var(--text-body);
            background: #F8FAFC;
            outline: none;
            transition: border-color .2s, box-shadow .2s;
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(14, 165, 233, .12);
            background: #fff;
        }

        .form-textarea {
            width: 100%;
            min-height: 88px;
            border: 1px solid #CBD5E1;
            border-radius: 12px;
            padding: 12px 16px;
            font-size: 14px;
            color: var(--text-body);
            background: #F8FAFC;
            outline: none;
            resize: vertical;
            font-family: inherit;
            transition: border-color .2s, box-shadow .2s;
        }

        .form-textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(14, 165, 233, .12);
            background: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0F172A;
            color: rgba(255, 255, 255, .9);
            padding: 64px 0 0;
        }

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

        .footer-brand .logo {
            margin-bottom: 16px;
        }

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

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .7);
            max-width: 280px;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 16px;
        }

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

        .footer-col li {
            margin-bottom: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            transition: color .2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }
            .header-actions .search-box {
                display: none;
            }
            .header-actions .btn {
                display: none;
            }
            .mobile-toggle {
                display: flex;
                margin-left: auto;
            }
            .hero-inner {
                grid-template-columns: 1fr;
            }
            .hero-visual {
                max-width: 600px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-card-large {
                grid-column: span 2;
            }
            .feature-card-medium {
                grid-column: span 1;
            }
            .entry-way,
            .entry-way-reverse {
                grid-template-columns: 1fr;
            }
            .trust-wrap {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-box {
                grid-template-columns: 1fr;
                padding: 32px;
            }
            .steps-wrap {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 72px;
                gap: 12px;
            }
            .logo-text {
                font-size: 15px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            .hero {
                padding: 48px 0 48px;
            }
            .hero h1 {
                font-size: 1.75rem;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-card-large {
                grid-column: span 1;
                grid-template-columns: 1fr;
                padding: 28px;
                gap: 16px;
            }
            .feature-card-medium {
                grid-column: span 1;
            }
            .entry-card-content {
                padding: 24px;
                min-height: 150px;
            }
            .steps-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .steps-wrap::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-box {
                padding: 24px;
                border-radius: 24px;
            }
            .contact-form {
                padding: 24px;
            }
            .hero-card-main img {
                height: 240px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-stats {
                grid-template-columns: 1fr 1fr;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .section-title {
                font-size: 1.375rem;
            }
            .testimonial-card {
                padding: 20px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0EA5E9;
            --primary-dark: #0284C7;
            --primary-active: #0369A1;
            --secondary: #10B981;
            --accent: #F59E0B;
            --bg-white: #FFFFFF;
            --bg-sky: #F0F9FF;
            --bg-mint: #ECFDF5;
            --text-title: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --radius: 1rem;
            --radius-lg: 1.5rem;
            --shadow-card: 0 16px 50px -12px rgba(14, 165, 233, 0.12);
            --shadow-hover: 0 24px 60px -20px rgba(14, 165, 233, 0.25);
            --gradient: linear-gradient(135deg, #0EA5E9 0%, #10B981 100%);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-white);
            color: var(--text-body);
            line-height: 1.75;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 6px rgba(15, 23, 42, 0.04);
            height: 80px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--gradient);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.15rem;
            font-weight: 800;
            box-shadow: 0 8px 20px -6px rgba(14, 165, 233, 0.4);
        }

        .logo-text {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-title);
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .nav-link {
            position: relative;
            padding: 0.5rem 0.9rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 8px;
            transition: color 0.25s ease;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(14, 165, 233, 0.05);
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0.9rem;
            right: 0.9rem;
            bottom: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: #F8FAFC;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 0.45rem 0.8rem;
            width: 200px;
            transition: box-shadow 0.2s, border-color 0.2s;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.12);
        }

        .search-box i {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

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

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

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.25rem;
            color: var(--text-title);
            cursor: pointer;
            padding: 0.4rem;
            border-radius: 8px;
        }

        .mobile-toggle:hover {
            background: #F1F5F9;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.45rem;
            border-radius: 12px;
            font-weight: 600;
            line-height: 1;
            cursor: pointer;
            border: 1px solid transparent;
            transition: all 0.25s ease;
        }

        .btn-primary {
            background: var(--gradient);
            color: #fff;
            padding: 0.8rem 1.6rem;
            box-shadow: 0 10px 25px -8px rgba(14, 165, 233, 0.45);
        }

        .btn-primary:hover {
            filter: brightness(1.05);
            box-shadow: 0 14px 30px -8px rgba(14, 165, 233, 0.55);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 6px 16px -6px rgba(14, 165, 233, 0.4);
        }

        .btn-outline {
            background: #fff;
            border-color: var(--primary);
            color: var(--primary);
            padding: 0.8rem 1.6rem;
        }

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

        .btn-sm {
            padding: 0.55rem 1.1rem;
            font-size: 0.875rem;
        }

        .btn-lg {
            padding: 1rem 2.2rem;
            font-size: 1rem;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(14, 165, 233, 0.4);
            outline-offset: 2px;
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, #F8FAFC 0%, #F0F9FF 50%, #ECFDF5 100%);
            padding: 4.5rem 0 3.5rem;
            overflow: hidden;
        }

        .page-hero .bg-decor {
            position: absolute;
            border-radius: 50%;
            opacity: 0.3;
            filter: blur(30px);
        }

        .bg-decor-1 {
            width: 420px;
            height: 420px;
            background: rgba(14, 165, 233, 0.2);
            top: -150px;
            right: -80px;
        }

        .bg-decor-2 {
            width: 280px;
            height: 280px;
            background: rgba(16, 185, 129, 0.18);
            bottom: -80px;
            left: -60px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .sep {
            color: #CBD5E1;
        }

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

        .page-hero h1 {
            font-size: clamp(1.8rem, 3.5vw, 2.75rem);
            font-weight: 800;
            color: var(--text-title);
            line-height: 1.3;
            margin-bottom: 1rem;
        }

        .page-hero .hero-desc {
            font-size: 1.05rem;
            color: var(--text-body);
            max-width: 620px;
            margin-bottom: 1.75rem;
            line-height: 1.75;
        }

        /* Section spacing */
        .section-block {
            padding: 4.5rem 0;
        }

        .section-block-alt {
            background: var(--bg-sky);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(14, 165, 233, 0.08);
            color: var(--primary-active);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.8rem;
            border-radius: 999px;
            margin-bottom: 1rem;
        }

        .section-title {
            font-size: clamp(1.4rem, 2.5vw, 2rem);
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.35;
            margin-bottom: 0.75rem;
        }

        .section-subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 560px;
            line-height: 1.7;
        }

        /* Feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-top: 2.5rem;
        }

        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(14, 165, 233, 0.3);
        }

        .feature-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            color: #fff;
            margin-bottom: 1.25rem;
            transition: transform 0.3s ease;
        }

        .feature-card:hover .icon-wrap {
            transform: rotate(-4deg) scale(1.04);
        }

        .icon-sky {
            background: linear-gradient(135deg, #38BDF8, #0EA5E9);
        }

        .icon-mint {
            background: linear-gradient(135deg, #34D399, #10B981);
        }

        .icon-amber {
            background: linear-gradient(135deg, #FBBF24, #F59E0B);
        }

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

        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* Process */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-top: 2.5rem;
            counter-reset: step;
        }

        .process-step {
            position: relative;
            text-align: center;
            padding: 0 0.5rem;
        }

        .process-step .step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--gradient);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: 0 10px 22px -8px rgba(14, 165, 233, 0.5);
        }

        .process-step h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 0.35rem;
        }

        .process-step p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 26px;
            right: -1.5rem;
            width: 3rem;
            height: 2px;
            border-top: 2px dashed #CBD5E1;
        }

        /* Scenario cards */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin-top: 2.5rem;
        }

        .scenario-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.75rem;
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            transition: all 0.3s ease;
        }

        .scenario-card:hover {
            border-color: rgba(14, 165, 233, 0.3);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .scenario-card .sc-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(14, 165, 233, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .scenario-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 0.35rem;
        }

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

        /* Articles */
        .article-list {
            margin-top: 2.5rem;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .article-item {
            display: flex;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .article-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(14, 165, 233, 0.3);
            transform: translateY(-3px);
        }

        .article-item .thumb {
            width: 260px;
            flex-shrink: 0;
            min-height: 170px;
            background: #F8FAFC;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .article-item .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .article-item:hover .thumb img {
            transform: scale(1.04);
        }

        .article-item .body {
            padding: 1.5rem 1.75rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .article-item .meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }

        .article-item .meta .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
        }

        .article-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 0.5rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.75rem;
        }

        .article-item .more {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .article-item .more i {
            transition: transform 0.2s;
        }

        .article-item .more:hover i {
            transform: translateX(4px);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 2.5rem auto 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(14, 165, 233, 0.3);
        }

        .faq-item.open {
            border-color: rgba(14, 165, 233, 0.45);
            box-shadow: 0 8px 30px -12px rgba(14, 165, 233, 0.15);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.975rem;
            color: var(--text-title);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color 0.2s;
        }

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

        .faq-toggle {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(14, 165, 233, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
            transition: transform 0.3s ease, background 0.3s;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 1.5rem 1.25rem;
            font-size: 0.925rem;
            color: var(--text-body);
            line-height: 1.75;
            border-top: 1px solid #F1F5F9;
            padding-top: 1rem;
        }

        /* CTA block */
        .cta-card {
            background: linear-gradient(135deg, #F0F9FF 0%, #ECFDF5 100%);
            border-radius: var(--radius-lg);
            padding: 3rem;
            position: relative;
            overflow: hidden;
        }

        .cta-card h2 {
            font-size: clamp(1.3rem, 2.5vw, 1.9rem);
            font-weight: 800;
            color: var(--text-title);
            margin-bottom: 0.75rem;
        }

        .cta-card p {
            color: var(--text-body);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
            max-width: 480px;
        }

        .contact-form {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 1.75rem;
            box-shadow: 0 20px 50px -20px rgba(14, 165, 233, 0.2);
            display: grid;
            gap: 1rem;
        }

        .form-group label {
            display: block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 0.35rem;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            border: 1px solid #CBD5E1;
            border-radius: 12px;
            padding: 0.65rem 1rem;
            font-size: 0.9rem;
            outline: none;
            transition: border-color 0.2s, box-shadow 0.2s;
            background: #fff;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.12);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 80px;
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: rgba(255, 255, 255, 0.9);
            padding: 3.5rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
        }

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

        .footer-brand p {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin-top: 1rem;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }

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

        .footer-col ul li a {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.2s;
        }

        .footer-col ul li a:hover {
            color: #38BDF8;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 1.25rem 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* Mobile menu */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 80px;
            right: 0;
            left: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 20px 40px -12px rgba(15, 23, 42, 0.15);
            padding: 1.25rem;
            flex-direction: column;
            gap: 0.5rem;
            z-index: 99;
        }

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

        .mobile-drawer a {
            padding: 0.7rem 1rem;
            border-radius: 10px;
            font-weight: 500;
            color: var(--text-body);
        }

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

        .mobile-drawer a.active {
            color: var(--primary);
            background: rgba(14, 165, 233, 0.08);
        }

        .mobile-drawer .btn {
            margin-top: 0.75rem;
            text-align: center;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }

            .header-actions .search-box {
                display: none;
            }

            .mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

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

            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }

            .process-step:nth-child(2)::after {
                display: none;
            }

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

        @media (max-width: 768px) {
            .site-header {
                height: 70px;
            }

            .logo-text {
                font-size: 0.95rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }

            .mobile-drawer {
                top: 70px;
            }

            .page-hero {
                padding: 3rem 0 2.5rem;
            }

            .section-block {
                padding: 3rem 0;
            }

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

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

            .article-item {
                flex-direction: column;
            }

            .article-item .thumb {
                width: 100%;
                min-height: 180px;
            }

            .cta-card {
                padding: 1.75rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.75rem;
            }

            .header-actions .btn {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }
        }

        @media (max-width: 520px) {
            .process-steps {
                grid-template-columns: 1fr;
            }

            .process-step::after {
                display: none !important;
            }

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

            .hero-desc {
                font-size: 0.925rem !important;
            }

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

            .cta-card h2 {
                font-size: 1.25rem;
            }

            .btn-lg {
                padding: 0.85rem 1.6rem;
                font-size: 0.925rem;
            }
        }