* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        }

        body {
            background-color: #f8fafc;
            color: #0b1a33;
            line-height: 1.5;
        }

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

        /* 头部 / 导航 */
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            flex-wrap: wrap;
            border-bottom: 1px solid rgba(0, 20, 50, 0.06);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 26px;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: #0a1e3c;
        }

        .logo i {
            color: #2563eb;
            font-size: 32px;
        }

        .nav-links {
            display: flex;
            gap: 32px;
            font-weight: 500;
            color: #1e293b;
        }

        .nav-links a {
            text-decoration: none;
            color: #1e293b;
            transition: color 0.2s;
            font-size: 16px;
        }

        .nav-links a:hover {
            color: #2563eb;
        }

        .nav-cta {
            background: #0b1a33;
            color: white !important;
            padding: 8px 20px;
            border-radius: 40px;
            font-weight: 600;
            transition: background 0.2s;
        }

        .nav-cta:hover {
            background: #1e3a6b !important;
            color: white !important;
        }

        /* 手机菜单 (简�? */
        .menu-toggle {
            display: none;
            font-size: 26px;
            color: #0b1a33;
            cursor: pointer;
        }

        /* Hero 主视�?*/
        .hero {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 50px 0 60px;
            gap: 30px;
        }

        .hero-text {
            flex: 1 1 45%;
        }

        .hero-text .badge {
            display: inline-block;
            background: #dbeafe;
            color: #1e4a8a;
            font-weight: 600;
            font-size: 14px;
            padding: 4px 18px;
            border-radius: 40px;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }

        .hero-text h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -1px;
            color: #0a1e3c;
            margin-bottom: 20px;
        }

        .hero-text h1 span {
            color: #2563eb;
        }

        .hero-text p {
            font-size: 18px;
            color: #334155;
            max-width: 500px;
            margin-bottom: 30px;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .btn-primary {
            background: #0b1a33;
            color: white;
            padding: 14px 36px;
            border-radius: 60px;
            font-weight: 600;
            border: none;
            font-size: 16px;
            cursor: pointer;
            transition: 0.2s;
            box-shadow: 0 6px 14px rgba(11, 26, 51, 0.15);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }

        .btn-primary i {
            font-size: 18px;
        }

        .btn-primary:hover {
            background: #1e3a6b;
            transform: scale(1.02);
            box-shadow: 0 10px 20px rgba(11, 26, 51, 0.2);
        }

        .btn-outline {
            background: transparent;
            color: #0b1a33;
            padding: 14px 36px;
            border-radius: 60px;
            font-weight: 600;
            border: 1.5px solid #cbd5e1;
            font-size: 16px;
            cursor: pointer;
            transition: 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }

        .btn-outline i {
            color: #2563eb;
        }

        .btn-outline:hover {
            border-color: #2563eb;
            background: #f1f5f9;
        }

        .hero-image {
            flex: 1 1 45%;
            background: #e2e8f0;
            border-radius: 40px 40px 40px 0;
            min-height: 280px;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 400 300" width="400" height="300"><rect width="400" height="300" fill="%23dbeafe" rx="30"/><circle cx="120" cy="120" r="40" fill="%232563eb" opacity="0.2"/><circle cx="280" cy="100" r="55" fill="%232563eb" opacity="0.15"/><rect x="80" y="190" width="240" height="50" rx="12" fill="%23ffffff" opacity="0.5"/><rect x="110" y="210" width="180" height="12" rx="6" fill="%232563eb" opacity="0.3"/><path d="M40 250 L360 250 L340 280 L60 280 Z" fill="%230b1a33" opacity="0.08"/></svg>');
            background-size: cover;
            background-position: center;
            box-shadow: 0 20px 40px -12px rgba(0,0,0,0.08);
        }

        /* 主营产品 / 核心业务 */
        .section-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            color: #0a1e3c;
        }

        .section-sub {
            color: #475569;
            max-width: 640px;
            font-size: 18px;
            margin-bottom: 40px;
        }

        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
            gap: 30px;
            margin: 30px 0 60px;
        }

        .product-card {
            background: white;
            border-radius: 28px;
            padding: 28px 22px;
            box-shadow: 0 8px 22px rgba(0, 0, 0, 0.04);
            transition: all 0.25s;
            border: 1px solid rgba(0, 0, 0, 0.02);
            text-align: center;
        }

        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 35px -8px rgba(0, 20, 50, 0.10);
            border-color: #dbeafe;
        }

        .product-icon {
            font-size: 44px;
            color: #2563eb;
            background: #eff6ff;
            width: 80px;
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 30px;
            margin: 0 auto 18px;
        }

        .product-card h3 {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .product-card p {
            color: #475569;
            font-size: 15px;
        }

        /* 特色 / 优势 */
        .feature-section {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            background: #ffffff;
            border-radius: 48px;
            padding: 48px 40px;
            margin: 50px 0 60px;
            box-shadow: 0 12px 30px rgba(0,0,0,0.02);
            border: 1px solid #eef2f6;
        }

        .feature-item {
            flex: 1 1 180px;
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .feature-item i {
            font-size: 32px;
            color: #2563eb;
            width: 56px;
            height: 56px;
            background: #eff6ff;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .feature-item div h4 {
            font-size: 18px;
            font-weight: 600;
        }

        .feature-item div p {
            color: #475569;
            font-size: 14px;
        }

        /* 案例 / 场景 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 30px;
            margin: 30px 0 50px;
        }

        .case-card {
            background: white;
            border-radius: 28px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0,0,0,0.02);
            border: 1px solid #f0f4f9;
            transition: 0.2s;
        }

        .case-card:hover {
            border-color: #bdd3ff;
        }

        .case-img {
            height: 140px;
            background: #dbeafe;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 48px;
            color: #2563eb;
        }

        .case-content {
            padding: 22px 20px 28px;
        }

        .case-content h4 {
            font-size: 20px;
            margin-bottom: 8px;
        }

        .case-content p {
            color: #475569;
            font-size: 15px;
        }

        /* 联系 / CTA */
        .cta-section {
            background: #0b1a33;
            border-radius: 48px;
            padding: 50px 40px;
            color: white;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            margin: 50px 0 40px;
        }

        .cta-text h2 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.3px;
            margin-bottom: 10px;
        }

        .cta-text p {
            opacity: 0.75;
            font-size: 18px;
        }

        .cta-btn {
            background: white;
            color: #0b1a33;
            padding: 16px 42px;
            border-radius: 60px;
            font-weight: 700;
            font-size: 16px;
            border: none;
            cursor: pointer;
            transition: 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .cta-btn i {
            color: #2563eb;
        }

        .cta-btn:hover {
            background: #e2e8f0;
            transform: scale(1.02);
        }

        /* 底部 */
        .footer {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 30px 0 40px;
            border-top: 1px solid #e2e8f0;
            color: #475569;
            font-size: 15px;
            gap: 20px;
        }

        .footer-left {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-left .company {
            font-weight: 600;
            color: #0b1a33;
        }

        .footer-left .contact {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 14px;
        }

        .footer-left .contact i {
            margin-right: 6px;
            color: #2563eb;
        }

        .footer-links {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .footer-links a {
            text-decoration: none;
            color: #334155;
        }

        .footer-links a:hover {
            color: #2563eb;
        }

        .footer-icp {
            font-size: 15px;
            color: #334155;
            margin-top: 8px;
            text-align: center;
            width: 100%;
        }

        .social i {
            font-size: 20px;
            margin-left: 16px;
            color: #64748b;
            transition: 0.2s;
        }

        .social i:hover {
            color: #0b1a33;
        }

        /* 响应�?*/
        @media (max-width: 850px) {
            .navbar {
                flex-wrap: wrap;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 16px;
                padding: 20px 0 10px;
            }
            .nav-links.open {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .hero {
                flex-direction: column;
            }
            .hero-text h1 {
                font-size: 36px;
            }
            .feature-section {
                flex-direction: column;
                padding: 32px 24px;
            }
            .cta-section {
                flex-direction: column;
                text-align: center;
                gap: 25px;
            }
            .footer {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 500px) {
            .container {
                padding: 0 16px;
            }
            .hero-text h1 {
                font-size: 30px;
            }
            .product-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ===== 内页通用 ===== */
        .page-banner {
            padding: 60px 0 40px;
        }
        .page-banner h1 {
            font-size: 40px;
            font-weight: 700;
            color: #0a1e3c;
            letter-spacing: -0.5px;
        }
        .page-banner p {
            font-size: 18px;
            color: #475569;
            max-width: 600px;
            margin-top: 10px;
        }
        .page-section {
            padding: 50px 0;
        }
        .page-section:last-of-type {
            padding-bottom: 80px;
        }

        /* ===== 产品详情页 ===== */
        .product-detail-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 30px 0;
        }
        .product-detail-card {
            background: white;
            border-radius: 28px;
            padding: 32px 28px;
            box-shadow: 0 8px 22px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f6;
            transition: all 0.25s;
        }
        .product-detail-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 20px 35px -8px rgba(0, 20, 50, 0.10);
            border-color: #dbeafe;
        }
        .product-detail-card .p-icon {
            font-size: 48px;
            color: #2563eb;
            background: #eff6ff;
            width: 90px;
            height: 90px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 30px;
            margin-bottom: 20px;
        }
        .product-detail-card h3 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .product-detail-card p {
            color: #475569;
            font-size: 15px;
            line-height: 1.7;
        }
        .product-detail-card ul {
            list-style: none;
            margin-top: 16px;
        }
        .product-detail-card ul li {
            padding: 6px 0;
            color: #334155;
            font-size: 15px;
        }
        .product-detail-card ul li i {
            color: #2563eb;
            width: 22px;
            margin-right: 6px;
        }

        /* ===== 解决方案页 ===== */
        .solution-card {
            display: flex;
            flex-wrap: wrap;
            background: white;
            border-radius: 36px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0,0,0,0.03);
            border: 1px solid #eef2f6;
            margin-bottom: 30px;
            transition: 0.25s;
        }
        .solution-card:hover {
            border-color: #bdd3ff;
            box-shadow: 0 16px 32px -8px rgba(0, 20, 50, 0.08);
        }
        .solution-visual {
            flex: 0 0 280px;
            background: #dbeafe;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 72px;
            color: #2563eb;
            min-height: 200px;
        }
        .solution-body {
            flex: 1;
            padding: 36px 32px;
        }
        .solution-body h3 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .solution-body p {
            color: #475569;
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .solution-body .tag {
            display: inline-block;
            background: #eff6ff;
            color: #1e4a8a;
            font-size: 13px;
            font-weight: 500;
            padding: 4px 16px;
            border-radius: 40px;
            margin: 3px 6px 3px 0;
        }

        /* ===== 关于我们 ===== */
        .about-intro {
            display: flex;
            flex-wrap: wrap;
            gap: 50px;
            align-items: center;
            margin: 30px 0 50px;
        }
        .about-intro-text {
            flex: 1 1 55%;
        }
        .about-intro-text h2 {
            font-size: 32px;
            font-weight: 700;
            color: #0a1e3c;
            margin-bottom: 20px;
        }
        .about-intro-text p {
            color: #475569;
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .about-intro-image {
            flex: 1 1 35%;
            background: #e2e8f0;
            border-radius: 40px;
            min-height: 260px;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 400 300" width="400" height="300"><rect width="400" height="300" fill="%23dbeafe" rx="30"/><circle cx="200" cy="130" r="50" fill="%232563eb" opacity="0.15"/><rect x="100" y="200" width="200" height="40" rx="10" fill="%23ffffff" opacity="0.5"/><rect x="130" y="215" width="140" height="10" rx="5" fill="%232563eb" opacity="0.3"/></svg>');
            background-size: cover;
            background-position: center;
        }

        .values-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            margin: 30px 0;
        }
        .value-card {
            background: white;
            border-radius: 28px;
            padding: 28px 22px;
            text-align: center;
            border: 1px solid #eef2f6;
            transition: 0.25s;
        }
        .value-card:hover {
            border-color: #dbeafe;
            transform: translateY(-4px);
        }
        .value-card i {
            font-size: 40px;
            color: #2563eb;
            background: #eff6ff;
            width: 72px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 24px;
            margin: 0 auto 16px;
        }
        .value-card h4 {
            font-size: 20px;
            font-weight: 600;
        }
        .value-card p {
            color: #475569;
            font-size: 14px;
            margin-top: 8px;
        }

        /* 联系方式 */
        .contact-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
            margin: 30px 0 40px;
        }
        .contact-card {
            background: white;
            border-radius: 28px;
            padding: 28px 24px;
            border: 1px solid #eef2f6;
            text-align: center;
            transition: 0.25s;
        }
        .contact-card:hover {
            border-color: #dbeafe;
        }
        .contact-card i {
            font-size: 36px;
            color: #2563eb;
            background: #eff6ff;
            width: 64px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 20px;
            margin: 0 auto 16px;
        }
        .contact-card h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .contact-card p {
            color: #475569;
            font-size: 15px;
        }

        @media (max-width: 850px) {
            .page-banner h1 { font-size: 32px; }
            .solution-visual { flex: 0 0 100%; min-height: 160px; font-size: 56px; }
            .about-intro-image { min-height: 200px; }
        }