:root {
            --primary: #1a73e8;
            --secondary: #34a853;
            --accent: #fbbc05;
            --dark: #202124;
            --light: #f8f9fa;
            --gray: #5f6368;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            line-height: 1.6;
            color: var(--dark);
            background-color: #fff;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航栏样式 */
        header {
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo h1 {
            font-size: 24px;
            color: var(--primary);
            margin-left: 10px;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 30px;
        }
        
        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            transition: color 0.3s;
        }
        
        .nav-links a:hover {
            color: var(--primary);
        }
        
        .mobile-menu {
            display: none;
            font-size: 24px;
            cursor: pointer;
        }
        
        /* 页面标题区域 */
        .page-header {
            background: linear-gradient(135deg, #1a73e8 0%, #4285f4 100%);
            color: white;
            padding: 150px 0 80px;
            text-align: center;
        }
        
        .page-header h1 {
            font-size: 42px;
            margin-bottom: 20px;
        }
        
        .page-header p {
            font-size: 18px;
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* 服务流程区域 */
        .process-section {
            padding: 80px 0;
        }
        
        .process-timeline {
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
        }
        
        .process-timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
            transform: translateX(-50%);
        }
        
        .process-step {
            position: relative;
            margin-bottom: 60px;
            width: 100%;
            display: flex;
        }
        
        .process-step:nth-child(odd) {
            justify-content: flex-start;
        }
        
        .process-step:nth-child(even) {
            justify-content: flex-end;
        }
        
        .step-content {
            width: 45%;
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            position: relative;
        }
        
        .process-step:nth-child(odd) .step-content {
            margin-right: auto;
        }
        
        .process-step:nth-child(even) .step-content {
            margin-left: auto;
        }
        
        .step-marker {
            position: absolute;
            top: 50%;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            transform: translateY(-50%);
        }
        
        .process-step:nth-child(odd) .step-marker {
            right: -60px;
        }
        
        .process-step:nth-child(even) .step-marker {
            left: -60px;
        }
        
        .step-icon {
            font-size: 40px;
            color: var(--primary);
            margin-bottom: 15px;
        }
        
        .step-content h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: var(--primary);
        }
        
        .step-content p {
            color: var(--gray);
            margin-bottom: 20px;
        }
        
        .step-details {
            background-color: var(--light);
            padding: 15px;
            border-radius: 5px;
            margin-top: 15px;
        }
        
        .step-details h4 {
            font-size: 16px;
            margin-bottom: 10px;
            color: var(--dark);
        }
        
        .step-details ul {
            list-style-type: none;
            padding-left: 0;
        }
        
        .step-details li {
            margin-bottom: 5px;
            position: relative;
            padding-left: 20px;
        }
        
        .step-details li:before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--secondary);
            font-weight: bold;
        }
        
        /* 服务优势区域 */
        .advantages-section {
            padding: 80px 0;
            background-color: var(--light);
        }
        
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .advantage-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s;
        }
        
        .advantage-card:hover {
            transform: translateY(-10px);
        }
        
        .advantage-icon {
            width: 70px;
            height: 70px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            margin: 0 auto 20px;
        }
        
        .advantage-card h3 {
            font-size: 22px;
            margin-bottom: 15px;
        }
        
        .advantage-card p {
            color: var(--gray);
        }
        
        /* FAQ区域 */
        .faq-section {
            padding: 80px 0;
        }
        
        .faq-item {
            margin-bottom: 20px;
            border: 1px solid #e0e0e0;
            border-radius: 10px;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 20px;
            background-color: var(--light);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        
        .faq-item.active .faq-answer {
            padding: 20px;
            max-height: 500px;
        }
        
        .faq-question i {
            transition: transform 0.3s;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        /* CTA区域 */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #1a73e8 0%, #4285f4 100%);
            color: white;
            text-align: center;
        }
        
        .cta-section h2 {
            font-size: 36px;
            margin-bottom: 20px;
        }
        
        .cta-section p {
            font-size: 18px;
            max-width: 700px;
            margin: 0 auto 30px;
        }
        
        .cta-button {
            display: inline-block;
            background-color: var(--accent);
            color: var(--dark);
            padding: 12px 30px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .cta-button:hover {
            background-color: #e6a900;
            transform: translateY(-3px);
        }
        
        /* 页脚样式 */
        footer {
            background-color: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: flex;
            justify-content: space-between;
            margin-bottom: 40px;
        }
        
        .footer-column {
            flex: 1;
        }
        
        .footer-column h3 {
            font-size: 20px;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--primary);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #bdc1c6;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #3c4043;
            color: #bdc1c6;
            font-size: 14px;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .nav-links li {
                margin: 10px 0;
            }
            
            .mobile-menu {
                display: block;
            }
            
            .page-header h1 {
                font-size: 32px;
            }
            
            .process-timeline::before {
                left: 30px;
            }
            
            .process-step {
                justify-content: flex-start !important;
            }
            
            .step-content {
                width: calc(100% - 70px);
                margin-left: 70px !important;
                margin-right: 0 !important;
            }
            
            .step-marker {
                left: -50px !important;
                right: auto !important;
            }
            
            .footer-content {
                flex-direction: column;
            }
        }