* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
        }
        
        body {
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部样式 */
        header {
            background: linear-gradient(135deg, #2c6fd1 0%, #1a4a9e 100%);
            color: white;
            padding: 20px 0;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo-icon {
            font-size: 2.5rem;
            margin-right: 10px;
        }
        
        .logo-text h1 {
            font-size: 1.8rem;
            line-height: 1.2;
        }
        
        .logo-text p {
            font-size: 0.9rem;
            opacity: 0.9;
        }
        
        .contact-info {
            text-align: right;
        }
        
        .contact-info p {
            margin-bottom: 5px;
        }
        
        .cta-button {
            display: inline-block;
            background-color: #ff6b35;
            color: white;
            padding: 12px 28px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            margin-top: 10px;
            transition: all 0.3s;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        
        .cta-button:hover {
            background-color: #ff5722;
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.25);
        }
        
        /* 热门套餐部分 */
        .section-title {
            text-align: center;
            margin: 40px 0 30px;
            color: #2c6fd1;
            position: relative;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background-color: #ff6b35;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }
        
        .plans-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin-bottom: 50px;
        }
        
        .plan-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .plan-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 25px rgba(0, 0, 0, 0.12);
        }
        
        .plan-header {
            background: linear-gradient(to right, #2c6fd1, #4285f4);
            color: white;
            padding: 20px;
            text-align: center;
        }
        
        .plan-popular {
            background: linear-gradient(to right, #ff6b35, #ff9800);
        }
        
        .plan-price {
            font-size: 2.5rem;
            font-weight: bold;
        }
        
        .plan-price span {
            font-size: 1rem;
        }
        
        .plan-details {
            padding: 20px;
        }
        
        .plan-details ul {
            list-style: none;
        }
        
        .plan-details li {
            padding: 8px 0;
            border-bottom: 1px solid #f0f0f0;
        }
        
        .plan-details li:last-child {
            border-bottom: none;
        }
        
        .plan-details i {
            color: #2c6fd1;
            margin-right: 10px;
        }
        
        .plan-button {
            display: block;
            text-align: center;
            background-color: #2c6fd1;
            color: white;
            padding: 12px;
            text-decoration: none;
            border-radius: 6px;
            margin-top: 20px;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        
        .plan-button:hover {
            background-color: #1a4a9e;
        }
        
        /* 办理流程部分 */
        .process-steps {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }
        
        .step {
            flex: 1;
            min-width: 200px;
            text-align: center;
            padding: 20px;
            margin: 10px;
        }
        
        .step-number {
            display: inline-block;
            width: 50px;
            height: 50px;
            background-color: #2c6fd1;
            color: white;
            border-radius: 50%;
            line-height: 50px;
            font-size: 1.5rem;
            font-weight: bold;
            margin-bottom: 15px;
        }
        
        /* 信号覆盖部分 */
        .coverage-map {
            background-color: white;
            border-radius: 12px;
            padding: 30px;
            margin-bottom: 50px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
        }
        
        .map-placeholder {
            background: linear-gradient(to bottom, #e3f2fd, #bbdefb);
            border-radius: 8px;
            height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 20px;
            position: relative;
            overflow: hidden;
        }
        
        .map-placeholder:before {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="20" cy="30" r="5" fill="%232c6fd1" opacity="0.7"/><circle cx="50" cy="50" r="8" fill="%23ff6b35" opacity="0.7"/><circle cx="70" cy="20" r="6" fill="%232c6fd1" opacity="0.7"/><circle cx="40" cy="70" r="7" fill="%232c6fd1" opacity="0.7"/><circle cx="80" cy="60" r="5" fill="%23ff6b35" opacity="0.7"/></svg>');
            background-size: 200px 200px;
        }
        
        .coverage-areas {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-top: 20px;
        }
        
        .area {
            flex: 1;
            min-width: 200px;
            padding: 15px;
            background-color: #f5f9ff;
            border-radius: 8px;
            margin: 10px;
        }
        
        /* 教程和技巧部分 */
        .tutorials-container, .tips-container, .faq-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin-bottom: 50px;
        }
        
        .tutorial-card, .tip-card, .faq-item {
            background: white;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
        }
        
        .tip-card.warning {
            border-left: 5px solid #ff6b35;
        }
        
        .tip-card.success {
            border-left: 5px solid #4caf50;
        }
        
        .faq-question {
            font-weight: bold;
            color: #2c6fd1;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
        }
        
        .faq-question i {
            margin-right: 10px;
        }
        
        /* 页脚部分 */
        footer {
            background-color: #1a1a2e;
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        
        .footer-section {
            flex: 1;
            min-width: 250px;
            padding: 20px;
        }
        
        .footer-section h3 {
            color: #ff6b35;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: #ff6b35;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            margin-top: 20px;
            border-top: 1px solid #333;
            font-size: 0.9rem;
            color: #aaa;
        }
        
        /* 移动端适配 */
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                text-align: center;
            }
            
            .logo {
                margin-bottom: 20px;
            }
            
            .contact-info {
                text-align: center;
            }
            
            .process-steps {
                flex-direction: column;
            }
            
            .step {
                margin-bottom: 30px;
            }
            
            .plans-container, .tutorials-container, .tips-container, .faq-container {
                grid-template-columns: 1fr;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
        }
        
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            
            .logo-text h1 {
                font-size: 1.5rem;
            }
            
            .cta-button {
                padding: 10px 20px;
                font-size: 1rem;
            }
            
            .plan-price {
                font-size: 2rem;
            }
            
            .coverage-map, .tutorial-card, .tip-card, .faq-item {
                padding: 20px 15px;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .fade-in {
            animation: fadeIn 0.8s ease-out;
        }