/* 基础样式与重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: 50px 0;
        }
        .section-title {
            text-align: center;
            font-size: 2rem;
            margin-bottom: 40px;
            color: #1a56db;
            position: relative;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: #1a56db;
            margin: 10px auto 0;
            border-radius: 2px;
        }

        /* 头部导航 */
        .header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: #1a56db;
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        .nav-desktop a {
            font-weight: 500;
            transition: color 0.3s;
        }
        .nav-desktop a:hover {
            color: #1a56db;
        }
        .nav-mobile-toggle {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            cursor: pointer;
        }

        /* Banner */
        .banner {
            background: linear-gradient(135deg, #1a56db, #3b82f6);
            color: white;
            padding: 80px 0;
            text-align: center;
        }
        .banner h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
        }
        .banner p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            opacity: 0.9;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        .banner .btn-primary {
            display: inline-block;
            background-color: #ff6b35;
            color: white;
            padding: 15px 40px;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
        }
        .banner .btn-primary:hover {
            background-color: #e55a2b;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(255, 107, 53, 0.3);
        }

        /* 热门套餐 */
        .plans-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
        }
        .plan-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .plan-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .plan-img {
            /*height: 180px;*/
            width: 100%;
            object-fit: cover;
        }
        .plan-content {
            padding: 25px;
        }
        .plan-title {
            font-size: 1.4rem;
            margin-bottom: 10px;
            color: #1e3a8a;
        }
        .plan-features {
            list-style: none;
            margin-bottom: 20px;
        }
        .plan-features li {
            padding: 8px 0;
            border-bottom: 1px dashed #eee;
        }
        .plan-price {
            font-size: 1.8rem;
            color: #ff6b35;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .plan-btn {
            display: block;
            text-align: center;
            background-color: #1a56db;
            color: white;
            padding: 12px;
            border-radius: 8px;
            font-weight: 600;
            transition: background-color 0.3s;
        }
        .plan-btn:hover {
            background-color: #1649c0;
        }

        /* 办理流程 */
        .process-steps {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-top: 40px;
        }
        .step {
            text-align: center;
            flex: 1;
            min-width: 200px;
            padding: 20px;
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            background-color: #1a56db;
            color: white;
            font-size: 1.8rem;
            border-radius: 50%;
            margin-bottom: 20px;
        }
        .step h3 {
            margin-bottom: 10px;
        }

        /* 信息区块通用样式 */
        .info-block {
            background: white;
            border-radius: 12px;
            padding: 30px;
            margin-bottom: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .info-block h3 {
            color: #1a56db;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eef2ff;
        }

        /* 底部导航 (M端浮动) */
        .mobile-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background-color: white;
            box-shadow: 0 -2px 15px rgba(0,0,0,0.1);
            z-index: 1001;
        }
        .mobile-nav ul {
            display: flex;
            list-style: none;
        }
        .mobile-nav li {
            flex: 1;
            text-align: center;
        }
        .mobile-nav a {
            display: block;
            padding: 15px 10px;
            font-size: 0.9rem;
            color: #666;
        }
        .mobile-nav a.active {
            color: #1a56db;
        }
        .mobile-nav i {
            display: block;
            font-size: 1.2rem;
            margin-bottom: 5px;
        }

        /* 页脚 */
        .footer {
            background-color: #1e293b;
            color: #cbd5e1;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-links {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-bottom: 30px;
        }
        .footer-col h4 {
            color: white;
            margin-bottom: 20px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            color: #94a3b8;
            transition: color 0.3s;
        }
        .footer-col a:hover {
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #334155;
            font-size: 0.9rem;
            color: #94a3b8;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .header .container {
                padding: 12px 20px;
            }
            .nav-desktop {
                display: none;
            }
            .nav-mobile-toggle {
                display: block;
            }
            .banner h1 {
                font-size: 2rem;
            }
            .banner p {
                font-size: 1rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .process-steps {
                flex-direction: column;
                align-items: center;
            }
            .step {
                width: 100%;
                max-width: 400px;
                margin-bottom: 30px;
            }
            .mobile-nav {
                display: block;
            }
            .footer-links {
                flex-direction: column;
                gap: 30px;
            }
            /* 为移动端底部导航留出空间 */
            body {
                padding-bottom: 70px;
            }
        }