/* 全局样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
        }

        :root {
            --primary: #0056b3;
            --primary-dark: #003d7a;
            --secondary: #ff7b00;
            --secondary-dark: #e56a00;
            --light: #f8f9fa;
            --dark: #333;
            --gray: #6c757d;
            --light-gray: #e9ecef;
        }

        body {
            background-color: #fff;
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        section {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 60px;
            position: relative;
        }

        .section-title h2 {
            font-size: 36px;
            color: var(--primary);
            font-weight: 700;
            display: inline-block;
            position: relative;
            padding-bottom: 15px;
        }

        .section-title h2:after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .pagination a{
            color: #333;
        }

        .btn {
            display: inline-block;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            text-align: center;
        }

        .btn-primary {
            background: var(--secondary);
            color: white;
            box-shadow: 0 4px 12px rgba(255, 123, 0, 0.25);
        }

        .btn-primary:hover {
            background: var(--secondary-dark);
            transform: translateY(-3px);
            box-shadow: 0 7px 20px rgba(255, 123, 0, 0.35);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: white;
        }

        /* 顶部导航 */
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }

        .logo {
            display: flex;
            align-items: center;
        }

        .logo h1 {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin-left: 10px;
        }
        .logo img{
            max-width: 100%;
            height:60px;
        }

        .logo span {
            color: var(--secondary);
        }

        .nav-links {
            display: flex;
            list-style: none;
        }

        .nav-links li {
            margin: 0 15px;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s;
            position: relative;
            padding: 5px 0;
        }

        .nav-links a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width 0.3s ease;
        }

        .nav-links a:hover:after {
            width: 100%;
        }

        .nav-links a:hover {
            color: var(--secondary);
        }

        .nav-contact {
            display: flex;
            align-items: center;
        }

        .nav-contact a {
            margin-left: 20px;
            white-space: nowrap;
        }

        .mobile-toggle {
            display: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--primary);
        }


        /* 底部 */
        footer {
            background: #002752;
            color: white;
            padding: 80px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h3 {
            font-size: 22px;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-col h3:after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--secondary);
        }

        .footer-contact li {
            display: flex;
            margin-bottom: 18px;
            align-items: flex-start;
        }
        .footer-contact li a{
            color:#fff;
            text-decoration: none;
        }
        .copyright a{
            text-decoration: none;
            color: #fff;
        }

        .footer-contact li i {
            margin-right: 12px;
            color: var(--secondary);
            min-width: 20px;
            font-size: 18px;
            margin-top: 4px;
        }

        .social-icons {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }

        .social-icons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            font-size: 18px;
            transition: all 0.3s ease;
        }

        .social-icons a:hover {
            background: var(--secondary);
            transform: translateY(-3px);
        }

        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 14px;
            opacity: 0.7;
        }

        /* 响应式设计 */
        @media (max-width: 1100px) {
            .process:before {
                width: 75%;
                left: 12.5%;
            }
        }

        @media (max-width: 992px) {
            .about-content {
                flex-direction: column;
            }
            
            .hero h1 {
                font-size: 42px;
            }
            
            .hero h1 span {
                font-size: 48px;
            }
            
            .process:before {
                display: none;
            }
            
            .process {
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .process-step {
                width: 33.333%;
                margin-bottom: 40px;
            }
        }

        @media (max-width: 768px) {
            .nav-links, .nav-contact {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
                display: none;
                z-index: 999;
            }

            .advantage-grid {
                grid-template-columns: repeat(2, 1fr); /* 手机端一排2个 */
            }

            .product-grid,.scenario-grid{
                grid-template-columns: repeat(2, 1fr); /* 手机端一排2个 */
            }
            
            .nav-links.active, .nav-contact.active {
                display: flex;
            }
            .nav-contact{
                display: none!important;
            }
            
            .nav-links li {
                margin: 12px 0;
            }
            
            .mobile-toggle {
                display: block;
            }
            
            .hero {
                padding: 160px 0 70px;
            }
            
            .hero h1 {
                font-size: 36px;
            }
            
            .hero h1 span {
                font-size: 42px;
            }
            
            .hero p {
                font-size: 18px;
            }
            
            .section-title h2 {
                font-size: 32px;
            }
            
            .hero-btns {
                flex-direction: column;
                align-items: center;
                gap: 15px;
            }
            
            .process-step {
                width: 50%;
            }
            
            .chart {
                height: 250px;
            }
        }

        @media (max-width: 576px) {
            .hero {
                padding: 140px 0 60px;
            }
            
            .hero h1 {
                font-size: 32px;
            }
            
            .hero h1 span {
                font-size: 36px;
            }
            
            .section-title h2 {
                font-size: 28px;
            }
            
            .process-step {
                width: 100%;
                max-width: 300px;
            }
            
            .policy-grid {
                grid-template-columns: 1fr;
            }
        }