/* roulang page: index */
:root {
            --primary: #0284c7;
            --primary-hover: #0369a1;
            --secondary: #10b981;
            --secondary-dark: #059669;
            --dark-surface: #0f172a;
            --dark-card: #1e293b;
            --bg-light: #f8fafc;
            --bg-alt: #f1f5f9;
            --text-main: #0f172a;
            --text-muted: #64748b;
            --accent-orange: #f59e0b;
            --border-color: #e2e8f0;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-subtle: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
            --shadow-float: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            color: var(--text-main);
            background-color: #ffffff;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        ul {
            list-style: none;
        }

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部导航辅助条 */
        .topbar {
            background-color: #0b1120;
            color: #94a3b8;
            font-size: 13px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            padding: 8px 0;
        }
        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .topbar-meta {
            display: flex;
            gap: 20px;
        }
        .topbar-meta span, .topbar-meta a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topbar-links a {
            color: #94a3b8;
            margin-left: 18px;
        }
        .topbar-links a:hover {
            color: #38bdf8;
        }

        /* 主导航条 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }
        .site-header .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: #0f172a;
            letter-spacing: -0.5px;
        }
        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #ffffff;
            font-weight: bold;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(2, 132, 199, 0.3);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: #334155;
            position: relative;
            padding: 6px 0;
        }
        .main-nav a:hover, .main-nav a.active {
            color: var(--primary);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-main);
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
        }

        /* 基础按钮系统 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: 9999px;
            cursor: pointer;
            border: 1px solid transparent;
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            min-height: 44px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #0284c7);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(2, 132, 199, 0.45);
            background: #0369a1;
        }
        .btn-secondary {
            background: #ffffff;
            color: #0f172a;
            border: 1px solid var(--border-color);
        }
        .btn-secondary:hover {
            background: #f8fafc;
            border-color: #cbd5e1;
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--secondary);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
        }
        .btn-accent:hover {
            background: var(--secondary-dark);
            transform: translateY(-2px);
        }

        /* 徽标与通用版式 */
        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 9999px;
            background: #e0f2fe;
            color: var(--primary);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .badge-dark {
            background: rgba(255,255,255,0.12);
            color: #38bdf8;
            border: 1px solid rgba(255,255,255,0.16);
        }
        .section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 60px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .section-padding {
            padding: 96px 0;
        }

        /* 板块01：Hero 全宽沉浸式轮播与文档服务入口 */
        .hero-section {
            position: relative;
            background-color: #081120;
            background-image: linear-gradient(rgba(8, 17, 32, 0.85), rgba(8, 17, 32, 0.95)), url('/assets/images/06ff71b17a1f1b49.webp');
            background-size: cover;
            background-position: center;
            color: #ffffff;
            padding: 110px 0 130px;
            clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
            overflow: hidden;
        }
        .hero-wrap {
            max-width: 880px;
            margin: 0 auto;
            text-align: center;
        }
        .hero-title {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: -1px;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #ffffff 40%, #bae6fd 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-intro {
            font-size: 18px;
            line-height: 1.8;
            color: #cbd5e1;
            margin-bottom: 40px;
        }
        .hero-search-box {
            position: relative;
            max-width: 660px;
            margin: 0 auto 28px;
            display: flex;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.22);
            border-radius: 9999px;
            padding: 6px;
            box-shadow: 0 12px 30px rgba(0,0,0,0.4);
            backdrop-filter: blur(8px);
        }
        .hero-search-input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 14px 24px;
            color: #ffffff;
            font-size: 16px;
            outline: none;
        }
        .hero-search-input::placeholder {
            color: #94a3b8;
        }
        .hero-search-btn {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0 28px;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .hero-search-btn:hover {
            background: #0369a1;
        }
        .hero-chips {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: #94a3b8;
        }
        .hero-chips a {
            background: rgba(255,255,255,0.1);
            color: #e2e8f0;
            padding: 6px 14px;
            border-radius: 9999px;
            border: 1px solid rgba(255,255,255,0.15);
        }
        .hero-chips a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* 板块02：行业痛点与出行场景剖析 */
        .pain-section {
            background: #ffffff;
        }
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .pain-card {
            background: #fff;
            border: 1px solid #fee2e2;
            border-top: 4px solid #ef4444;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-subtle);
            transition: all 0.3s;
        }
        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-float);
        }
        .pain-tag {
            font-size: 12px;
            font-weight: 700;
            color: #ef4444;
            background: #fef2f2;
            padding: 4px 10px;
            border-radius: 6px;
            display: inline-block;
            margin-bottom: 14px;
        }
        .pain-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 14px;
            color: #1e293b;
        }
        .pain-text {
            font-size: 14px;
            color: #64748b;
            line-height: 1.7;
        }

        /* 板块03：品牌与产品综合技术介绍 */
        .about-section {
            background: var(--bg-alt);
        }
        .about-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .about-content h2 {
            margin-bottom: 20px;
        }
        .about-content p {
            font-size: 15px;
            color: #475569;
            margin-bottom: 20px;
            line-height: 1.8;
        }
        .tech-spec-table {
            background: #ffffff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            margin-top: 24px;
        }
        .tech-spec-row {
            display: flex;
            border-bottom: 1px solid #f1f5f9;
            padding: 14px 20px;
            font-size: 14px;
        }
        .tech-spec-row:last-child {
            border-bottom: none;
        }
        .spec-key {
            width: 140px;
            font-weight: 600;
            color: #334155;
        }
        .spec-val {
            flex: 1;
            color: #0284c7;
            font-family: monospace;
            font-weight: 600;
        }
        .about-media-box {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-float);
        }

        /* 板块04：核心技术与平台优势区 (3×2卡片网格) */
        .features-section {
            background: #ffffff;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 34px 28px;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: opacity 0.3s;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            border-color: #bae6fd;
            box-shadow: var(--shadow-float);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon-box {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: #f0fdf4;
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .feature-card:nth-child(even) .feature-icon-box {
            background: #f0f9ff;
            color: var(--primary);
        }
        .feature-title {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #0f172a;
        }
        .feature-desc {
            font-size: 14px;
            color: #64748b;
            line-height: 1.7;
        }

        /* 板块05：热门解决方案与产品矩阵 (3列大卡片) */
        .solutions-section {
            background: var(--bg-light);
        }
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .solution-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-color);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
        }
        .solution-card:hover {
            box-shadow: var(--shadow-float);
            transform: translateY(-5px);
        }
        .solution-card-img {
            height: 200px;
            width: 100%;
            object-fit: cover;
        }
        .solution-body {
            padding: 30px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .solution-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            background: #e0f2fe;
            padding: 4px 12px;
            border-radius: 6px;
            align-self: flex-start;
            margin-bottom: 14px;
        }
        .solution-title {
            font-size: 21px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .solution-desc {
            font-size: 14px;
            color: #64748b;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .solution-specs {
            margin-top: auto;
            border-top: 1px dashed var(--border-color);
            padding-top: 18px;
            margin-bottom: 24px;
            font-size: 13px;
            color: #475569;
        }
        .solution-specs li {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 板块06：深色全宽案例与绿色出行理念 */
        .philosophy-section {
            background: var(--dark-surface);
            color: #ffffff;
            padding: 100px 0;
            position: relative;
        }
        .philosophy-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
        }
        .philosophy-quote {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.4;
            letter-spacing: -0.5px;
            color: #f8fafc;
            margin-bottom: 24px;
        }
        .philosophy-quote span {
            color: var(--secondary);
        }
        .philosophy-desc {
            font-size: 16px;
            color: #94a3b8;
            line-height: 1.8;
            margin-bottom: 30px;
        }
        .case-board {
            background: var(--dark-card);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-xl);
            padding: 36px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
        }
        .board-tag {
            font-size: 12px;
            background: rgba(16, 185, 129, 0.2);
            color: #34d399;
            padding: 4px 10px;
            border-radius: 6px;
            display: inline-block;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .board-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 14px;
            color: #ffffff;
        }
        .board-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        .board-stat-item .num {
            font-size: 28px;
            font-weight: 800;
            color: #38bdf8;
            font-family: monospace;
        }
        .board-stat-item .lbl {
            font-size: 13px;
            color: #94a3b8;
            margin-top: 4px;
        }

        /* 板块07：落地实施步骤 (4步连线轴) */
        .workflow-section {
            background: #ffffff;
        }
        .workflow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .workflow-step {
            position: relative;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
        }
        .step-badge {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
        }
        .step-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #0f172a;
        }
        .step-desc {
            font-size: 14px;
            color: #64748b;
            line-height: 1.6;
        }

        /* 板块08：用户故事与行业标杆应用 */
        .stories-section {
            background: var(--bg-alt);
        }
        .stories-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
        }
        .story-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-color);
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .story-quote {
            font-size: 16px;
            font-style: italic;
            color: #334155;
            line-height: 1.8;
            margin-bottom: 24px;
            position: relative;
        }
        .story-author {
            display: flex;
            align-items: center;
            gap: 16px;
            border-top: 1px solid #f1f5f9;
            padding-top: 20px;
        }
        .author-avatar {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: #e2e8f0;
            object-fit: cover;
        }
        .author-name {
            font-weight: 700;
            font-size: 16px;
            color: #0f172a;
        }
        .author-title {
            font-size: 13px;
            color: #64748b;
        }

        /* 板块09：关键效能数据统计条 */
        .metrics-section {
            background: linear-gradient(135deg, #0369a1, #0f172a);
            color: #ffffff;
            padding: 70px 0;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }
        .metric-box {
            padding: 10px 20px;
            border-right: 1pxsolid rgba(255, 255, 255, 0.15);
        }
        .metric-box:last-child {
            border-right: none;
        }
        .metric-val {
            font-size: 42px;
            font-weight: 900;
            line-height: 1.1;
            font-family: monospace;
            color: #38bdf8;
            margin-bottom: 8px;
        }
        .metric-val span {
            font-size: 22px;
            font-weight: 600;
            color: #f8fafc;
            margin-left: 4px;
        }
        .metric-title {
            font-size: 15px;
            font-weight: 600;
            color: #f1f5f9;
            margin-bottom: 4px;
        }
        .metric-tag {
            font-size: 12px;
            color: #34d399;
            background: rgba(16, 185, 129, 0.2);
            display: inline-block;
            padding: 2px 8px;
            border-radius: 9999px;
            margin-top: 6px;
        }

        /* 板块10：用户真实评价与口碑 */
        .testimonials-section {
            background: #ffffff;
        }
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .testimonial-card {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .stars-row {
            color: #f59e0b;
            font-size: 16px;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }
        .testimonial-text {
            font-size: 14px;
            color: #475569;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .user-profile {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .user-initials {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: #0284c7;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }
        .user-name {
            font-size: 15px;
            font-weight: 700;
            color: #0f172a;
        }
        .user-meta {
            font-size: 12px;
            color: #64748b;
        }

        /* 板块11：动态资讯与行业前沿洞察 */
        .news-section {
            background: var(--bg-alt);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .news-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-float);
        }
        .news-img {
            height: 180px;
            width: 100%;
            object-fit: cover;
        }
        .news-content {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-meta-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #94a3b8;
            margin-bottom: 12px;
        }
        .news-tag {
            color: var(--primary);
            font-weight: 600;
            background: #e0f2fe;
            padding: 2px 8px;
            border-radius: 4px;
        }
        .news-card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
            color: #0f172a;
        }
        .news-snippet {
            font-size: 14px;
            color: #64748b;
            line-height: 1.6;
            margin-bottom: 18px;
        }
        .news-card a.read-btn {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 板块12：常见问题 FAQ */
        .faq-section {
            background: #ffffff;
        }
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            background: #ffffff;
            transition: border-color 0.2s;
        }
        .faq-item[open] {
            border-color: #38bdf8;
            box-shadow: var(--shadow-subtle);
        }
        .faq-summary {
            padding: 20px 24px;
            font-size: 17px;
            font-weight: 700;
            color: #1e293b;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
        }
        .faq-summary::-webkit-details-marker {
            display: none;
        }
        .faq-summary::after {
            content: '+';
            font-size: 20px;
            font-weight: 400;
            color: var(--primary);
            transition: transform 0.2s;
        }
        .faq-item[open] .faq-summary::after {
            content: '−';
            transform: rotate(180deg);
        }
        .faq-body {
            padding: 0 24px 22px;
            font-size: 14px;
            color: #475569;
            line-height: 1.8;
            border-top: 1px dashed #e2e8f0;
            margin-top: 6px;
            padding-top: 16px;
        }

        /* 板块13：收口行动区与线索表单 */
        .cta-section {
            background: linear-gradient(135deg, #091e3a 0%, #0369a1 100%);
            color: #ffffff;
            padding: 90px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-box {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
            align-items: center;
        }
        .cta-content h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
        }
        .cta-content p {
            font-size: 16px;
            color: #cbd5e1;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .cta-form-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 34px;
            color: var(--text-main);
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }
        .form-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 18px;
            text-align: center;
        }
        .form-group {
            margin-bottom: 14px;
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            transition: border 0.2s;
        }
        .form-control:focus {
            border-color: var(--primary);
        }
        .btn-submit {
            width: 100%;
            background: #0284c7;
            color: #fff;
            border: none;
            padding: 14px;
            font-size: 15px;
            font-weight: 700;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .btn-submit:hover {
            background: #0369a1;
        }

        /* 页脚系统 */
        .site-footer {
            background: #0b1120;
            color: #94a3b8;
            padding: 70px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-brand h3 {
            color: #ffffff;
            font-size: 20px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand p {
            line-height: 1.8;
            color: #64748b;
            margin-bottom: 20px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 15px;
            margin-bottom: 18px;
            font-weight: 700;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: #94a3b8;
        }
        .footer-col ul li a:hover {
            color: #38bdf8;
        }
        .footer-bottom {
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            color: #475569;
            font-size: 13px;
        }
        .footer-bottom a {
            color: #64748b;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .pain-grid, .features-grid, .solutions-grid, .testimonials-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .workflow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .metric-box {
                border-right: none;
                border-bottom: 1px solid rgba(255,255,255,0.1);
                padding-bottom: 20px;
            }
            .about-wrap, .philosophy-grid, .cta-box {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .topbar {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 76px;
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                border-bottom: 1px solid var(--border-color);
            }
            .main-nav.show {
                display: flex;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-intro {
                font-size: 15px;
            }
            .pain-grid, .features-grid, .solutions-grid, .testimonials-grid, .news-grid, .workflow-grid, .stories-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 26px;
            }
            .section-padding {
                padding: 60px 0;
            }
        }