/* roulang page: index */
:root {
            --primary-dark: #0A192F;
            --primary-slate: #0F172A;
            --accent-emerald: #10B981;
            --accent-cyan: #0284C7;
            --accent-indigo: #6366F1;
            --bg-canvas: #F8FAFC;
            --bg-card: #FFFFFF;
            --bg-dark-section: #0B1120;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border-light: #E2E8F0;
            --border-dark: #1E293B;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --shadow-subtle: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
            --transition-smooth: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
            background-color: var(--bg-canvas);
            color: var(--text-body);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 顶部通告辅助栏 */
        .top-bar {
            background-color: #F1F5F9;
            border-bottom: 1px solid var(--border-light);
            font-size: 13px;
            color: var(--text-muted);
            height: 38px;
            display: flex;
            align-items: center;
        }

        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .top-bar-notice {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .badge-hot {
            background-color: var(--accent-cyan);
            color: #FFFFFF;
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 12px;
            font-weight: 600;
        }

        .top-bar-links {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        /* 主导航栏 */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
            transition: var(--transition-smooth);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }

        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-indigo));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
        }

        .brand-logo-icon svg {
            width: 22px;
            height: 22px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-heading);
            position: relative;
            padding: 6px 0;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--accent-cyan);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-cyan);
            transition: var(--transition-smooth);
        }

        .nav-link:hover::after, .nav-link.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-smooth);
            border: 1px solid transparent;
            text-align: center;
        }

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

        .btn-ghost:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background-color: #F0F9FF;
        }

        .btn-primary {
            background-color: var(--accent-cyan);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
        }

        .btn-primary:hover {
            background-color: #0369A1;
            box-shadow: 0 6px 20px rgba(2, 132, 199, 0.4);
            transform: translateY(-2px);
        }

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

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

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--primary-dark);
        }

        /* 通用板块与排版 */
        .section-padding {
            padding: 96px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 60px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            background-color: #E0F2FE;
            color: var(--accent-cyan);
            font-size: 13px;
            font-weight: 700;
            border-radius: 20px;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-heading);
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }

        .section-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* 1. Bento Hero 首屏 */
        .hero-section {
            padding: 60px 0 80px;
            background: radial-gradient(circle at 10% 20%, rgba(2, 132, 199, 0.05) 0%, transparent 60%);
        }

        .bento-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            grid-template-rows: auto auto;
            gap: 24px;
        }

        .bento-main {
            grid-column: 1 / 2;
            grid-row: 1 / 3;
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 52px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .bento-main-bg {
            position: absolute;
            right: 0;
            bottom: 0;
            width: 48%;
            height: 100%;
            opacity: 0.12;
            pointer-events: none;
            object-fit: cover;
        }

        .hero-h1 {
            font-size: 44px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .hero-desc {
            font-size: 17px;
            color: var(--text-body);
            line-height: 1.85;
            margin-bottom: 32px;
            max-width: 620px;
        }

        .hero-btn-group {
            display: flex;
            gap: 16px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .hero-badges {
            display: flex;
            align-items: center;
            gap: 24px;
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .hero-badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
        }

        .bento-side-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-subtle);
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .bento-side-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-cyan);
        }

        .card-icon-wrapper {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }

        .card-icon-cyan {
            background-color: #E0F2FE;
            color: var(--accent-cyan);
        }

        .card-icon-emerald {
            background-color: #D1FAE5;
            color: var(--accent-emerald);
        }

        .side-card-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
        }

        .side-card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }

        .bento-cta-bar {
            grid-column: 1 / -1;
            background: linear-gradient(90deg, var(--primary-dark) 0%, #1E293B 100%);
            border-radius: var(--radius-md);
            padding: 24px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: #FFFFFF;
        }

        .bento-cta-text {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 16px;
            font-weight: 600;
        }

        .bento-cta-sparkle {
            background-color: var(--accent-indigo);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 700;
        }

        /* 2. 底层架构区 */
        .engine-section {
            background-color: #FFFFFF;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .engine-grid {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 60px;
            align-items: center;
        }

        .engine-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border-light);
        }

        .engine-visual img {
            width: 100%;
            height: 440px;
            object-fit: cover;
        }

        .engine-specs {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 28px;
        }

        .spec-box {
            background-color: var(--bg-canvas);
            border: 1px solid var(--border-light);
            padding: 16px;
            border-radius: var(--radius-sm);
        }

        .spec-box-title {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        .spec-box-value {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
        }

        /* 3. 核心优势 6卡片网格 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-subtle);
            transition: var(--transition-smooth);
        }

        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-hover);
        }

        .feature-card-icon {
            width: 48px;
            height: 48px;
            background-color: #F0F9FF;
            color: var(--accent-cyan);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .feature-card-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
        }

        .feature-card-text {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
        }

        /* 4. 场景方案 3展台 */
        .products-section {
            background-color: #F1F5F9;
        }

        .products-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            align-items: stretch;
        }

        .product-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            position: relative;
            box-shadow: var(--shadow-subtle);
            transition: var(--transition-smooth);
        }

        .product-card.featured {
            border: 2px solid var(--accent-cyan);
            box-shadow: 0 16px 36px -6px rgba(2, 132, 199, 0.16);
            transform: scale(1.02);
        }

        .popular-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--accent-cyan);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }

        .product-card-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
        }

        .product-card-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
            min-height: 48px;
        }

        .product-feature-list {
            list-style: none;
            margin-bottom: 32px;
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
        }

        .product-feature-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 14px;
        }

        .product-feature-item svg {
            color: var(--accent-emerald);
            flex-shrink: 0;
        }

        /* 5. 深色哲学区 */
        .philosophy-section {
            background-color: var(--bg-dark-section);
            color: #FFFFFF;
        }

        .philosophy-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .philosophy-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-dark);
        }

        .philosophy-visual img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .philosophy-content .section-title {
            color: #FFFFFF;
        }

        .philosophy-content .section-subtitle {
            color: #94A3B8;
        }

        .philosophy-points {
            margin-top: 28px;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .philosophy-point-item {
            display: flex;
            gap: 16px;
        }

        .philosophy-point-bullet {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent-cyan);
            margin-top: 8px;
            flex-shrink: 0;
        }

        .philosophy-point-text h4 {
            font-size: 16px;
            font-weight: 600;
            color: #F8FAFC;
            margin-bottom: 4px;
        }

        .philosophy-point-text p {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
        }

        /* 6. 企业实战故事 */
        .cases-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

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

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

        .case-img-box {
            height: 220px;
            overflow: hidden;
        }

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

        .case-card:hover .case-img-box img {
            transform: scale(1.05);
        }

        .case-content {
            padding: 32px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .case-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-cyan);
            background-color: #E0F2FE;
            padding: 4px 10px;
            border-radius: 4px;
            align-self: flex-start;
            margin-bottom: 14px;
        }

        .case-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .case-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .case-stat-strip {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 16px;
            border-top: 1px solid var(--border-light);
        }

        .case-stat-item {
            display: flex;
            flex-direction: column;
        }

        .case-stat-val {
            font-size: 20px;
            font-weight: 800;
            color: var(--accent-emerald);
        }

        .case-stat-lbl {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 7. 关键效能数据 */
        .metrics-section {
            background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 64px 0;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .metric-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-subtle);
        }

        .metric-number {
            font-size: 38px;
            font-weight: 900;
            color: var(--primary-dark);
            margin-bottom: 8px;
            letter-spacing: -1px;
            font-family: system-ui, -apple-system, sans-serif;
        }

        .metric-number span {
            color: var(--accent-cyan);
            font-size: 28px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 8. 客户好评反馈 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .stars-row {
            display: flex;
            gap: 4px;
            color: #F59E0B;
            margin-bottom: 16px;
        }

        .testimonial-text {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 24px;
            font-style: normal;
        }

        .user-profile {
            display: flex;
            align-items: center;
            gap: 14px;
            border-top: 1px solid var(--border-light);
            padding-top: 18px;
        }

        .user-avatar-badge {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background-color: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary-dark);
            font-size: 14px;
        }

        .user-info h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-heading);
        }

        .user-info p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 9. 新闻资讯区 */
        .insights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .insight-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

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

        .insight-thumb {
            height: 190px;
            overflow: hidden;
        }

        .insight-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

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

        .insight-body {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .insight-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .insight-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
            line-height: 1.45;
        }

        .insight-desc {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .insight-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-cyan);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* 10. 权威认证与生态伙伴 */
        .partners-section {
            background-color: #FFFFFF;
            border-top: 1px solid var(--border-light);
        }

        .partners-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
            margin-bottom: 40px;
        }

        .partner-box {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 18px 12px;
            text-align: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            background-color: #F8FAFC;
            transition: var(--transition-smooth);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 64px;
        }

        .partner-box:hover {
            color: var(--primary-dark);
            border-color: var(--accent-cyan);
            background-color: #FFFFFF;
            box-shadow: var(--shadow-subtle);
        }

        .cert-strip {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
            padding-top: 30px;
            border-top: 1px dashed var(--border-light);
            font-size: 13px;
            color: var(--text-muted);
        }

        .cert-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 11. FAQ 手风琴 */
        .faq-container {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
        }

        .faq-question {
            padding: 22px 28px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text-heading);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            list-style: none;
        }

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

        .faq-question svg {
            transition: transform 0.25s ease;
            color: var(--accent-cyan);
            flex-shrink: 0;
        }

        details[open] .faq-question svg {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 28px 24px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            border-top: 1px solid #F1F5F9;
            margin-top: 8px;
            padding-top: 16px;
        }

        /* 12. 总 CTA 区 */
        .cta-box {
            background: radial-gradient(circle at 80% 20%, #1E293B 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            color: #FFFFFF;
            text-align: center;
            box-shadow: var(--shadow-hover);
            position: relative;
            overflow: hidden;
        }

        .cta-box h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .cta-box p {
            font-size: 16px;
            color: #94A3B8;
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .cta-form {
            display: flex;
            max-width: 520px;
            margin: 0 auto 24px;
            gap: 12px;
        }

        .cta-input {
            flex-grow: 1;
            padding: 14px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-dark);
            background-color: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 15px;
            outline: none;
            transition: var(--transition-smooth);
        }

        .cta-input:focus {
            border-color: var(--accent-cyan);
            background-color: rgba(255, 255, 255, 0.12);
        }

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

        .cta-trust-bar {
            font-size: 13px;
            color: #94A3B8;
            display: flex;
            justify-content: center;
            gap: 24px;
        }

        /* 页脚规范 */
        .site-footer {
            background-color: #060D19;
            color: #94A3B8;
            padding: 72px 0 32px;
            border-top: 1px solid #1E293B;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 56px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a:hover {
            color: #FFFFFF;
            padding-left: 4px;
        }

        .footer-brand-p {
            line-height: 1.8;
            margin-top: 14px;
            font-size: 13px;
            color: #64748B;
        }

        .footer-contact-item {
            margin-bottom: 12px;
            display: flex;
            gap: 10px;
            font-size: 13px;
        }

        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #64748B;
        }

        .footer-legal-links {
            display: flex;
            gap: 20px;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .bento-grid {
                grid-template-columns: 1fr;
            }
            .bento-main {
                grid-column: 1 / -1;
                grid-row: auto;
            }
            .engine-grid, .philosophy-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .features-grid, .products-grid, .testimonials-grid, .insights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                display: none;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 76px;
                left: 0;
                width: 100%;
                background-color: #FFFFFF;
                flex-direction: column;
                padding: 24px;
                gap: 18px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
            }
            .nav-menu.open {
                display: flex;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-actions .btn-ghost {
                display: none;
            }
            .hero-h1 {
                font-size: 32px;
            }
            .section-title {
                font-size: 28px;
            }
            .features-grid, .products-grid, .cases-grid, .testimonials-grid, .insights-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-form {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 16px;
                text-align: center;
            }
        }