/* 英雄区域 */
        .hero {
            background: linear-gradient(rgba(10, 36, 99, 0.8), rgba(10, 36, 99, 0.8)), url('/template/jia/images/1.jpg');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI2MCIgaGVpZ2h0PSI2MCI+PHBhdGggZD0iTTAgMGg2MHY2MEgweiIgZmlsbD0ibm9uZSIvPjxwYXRoIGQ9Ik0zMCAzMG0tMjggMGEyOCwyOCAwIDEsMSA1NiwwYTI4LDI4IDAgMSwxIC01NiwwIiBzdHJva2U9IiNkNGFmMzciIHN0cm9rZS13aWR0aD0iMiIgZmlsbD0ibm9uZSIgZmlsbC1ydWxlPSJldmVub2RkIiBvcGFjaXR5PSIwLjEiLz48L3N2Zz4=');
            opacity: 0.3;
        }
        
        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            color: var(--secondary);
            animation: fadeInUp 1s ease-out;
        }
        
        .hero p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            opacity: 0.9;
            animation: fadeInUp 1s ease-out 0.2s forwards;
            opacity: 0;
        }
        
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            animation: fadeInUp 1s ease-out 0.4s forwards;
            opacity: 0;
        }
        
        /* ODI服务概览 */
        .odi-overview {
            padding: 80px 0;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
        }
        
        .odi-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .odi-card {
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .odi-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(to right, var(--secondary), var(--accent));
        }
        
        .odi-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }
        
        .odi-card-icon {
            font-size: 3rem;
            color: var(--secondary);
            margin-bottom: 20px;
            display: inline-block;
            width: 80px;
            height: 80px;
            line-height: 80px;
            background: rgba(10, 36, 99, 0.05);
            border-radius: 50%;
        }
        
        .odi-card h3 {
            color: var(--primary);
            margin-bottom: 15px;
            font-size: 1.5rem;
        }
        
        .odi-card p {
            color: #555;
            line-height: 1.6;
        }
        
        /* 办理流程 */
        .process-section {
            padding: 80px 0;
            background-color: white;
        }
        
        .process-timeline {
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
            padding: 40px 0;
        }
        
        .process-timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 4px;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
            transform: translateX(-50%);
        }
        
        .process-step {
            display: flex;
            margin-bottom: 60px;
            position: relative;
            width: 100%;
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s ease;
        }
        
        .process-step.animated {
            opacity: 1;
            transform: translateY(0);
        }
        
        .process-step:nth-child(even) {
            flex-direction: row-reverse;
        }
        
        .step-content {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
            width: calc(50% - 50px);
            position: relative;
            transition: var(--transition);
            border-left: 4px solid var(--secondary);
        }
        
        .process-step:nth-child(even) .step-content {
            border-left: none;
            border-right: 4px solid var(--secondary);
        }
        
        .step-content:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        }
        
        .step-icon {
            position: absolute;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            top: 30px;
            z-index: 2;
            box-shadow: 0 5px 15px rgba(10, 36, 99, 0.3);
        }
        
        .process-step:nth-child(odd) .step-icon {
            right: -80px;
        }
        
        .process-step:nth-child(even) .step-icon {
            left: -80px;
        }
        
        .step-content h3 {
            color: var(--primary);
            margin-bottom: 15px;
            font-size: 1.4rem;
        }
        
        .step-content p {
            color: #666;
            line-height: 1.6;
        }
        
        /* 所需材料 */
        .materials-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
        }
        
        .materials-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .material-item {
            background: white;
            border-radius: 10px;
            margin-bottom: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            overflow: hidden;
            transition: var(--transition);
        }
        
        .material-item:hover {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .material-header {
            padding: 20px 25px;
            background: linear-gradient(135deg, var(--primary) 0%, #1a3a8f 100%);
            color: white;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        
        .material-header:hover {
            background: linear-gradient(135deg, #0c2c7a 0%, #1e42a8 100%);
        }
        
        .material-header h3 {
            font-size: 1.2rem;
            margin: 0;
        }
        
        .material-header i {
            transition: var(--transition);
        }
        
        .material-item.active .material-header i {
            transform: rotate(180deg);
        }
        
        .material-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease;
        }
        
        .material-item.active .material-content {
            max-height: 1000px;
        }
        
        .material-list {
            padding: 25px;
        }
        
        .material-list li {
            margin-bottom: 12px;
            padding-left: 30px;
            position: relative;
            color: #555;
        }
        
        .material-list li:before {
            content: '•';
            color: var(--secondary);
            font-weight: bold;
            font-size: 1.2rem;
            position: absolute;
            left: 0;
        }
        
        /* 服务优势 */
        .advantages {
            padding: 80px 0;
            background-color: white;
        }
        
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        
        .advantage-card {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .advantage-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(to right, var(--secondary), var(--accent));
            transform: translateX(-100%);
            transition: transform 0.6s ease;
        }
        
        .advantage-card:hover::after {
            transform: translateX(0);
        }
        
        .advantage-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .advantage-icon {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 20px;
            display: inline-block;
            width: 70px;
            height: 70px;
            line-height: 70px;
            background: rgba(10, 36, 99, 0.05);
            border-radius: 50%;
        }
        
        .advantage-card h3 {
            color: var(--primary);
            margin-bottom: 15px;
        }
        
        /* 常见问题 */
        .faq-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
        }
        
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: white;
            border-radius: 10px;
            margin-bottom: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            overflow: hidden;
            transition: var(--transition);
        }
        
        .faq-item:hover {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .faq-question {
            padding: 20px 25px;
            background: white;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            transition: var(--transition);
        }
        
        .faq-question:hover {
            background: #f9f9f9;
        }
        
        .faq-question i {
            transition: var(--transition);
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease;
        }
        
        .faq-item.active .faq-answer {
            max-height: 1000px;
        }
        
        .faq-answer-content {
            padding: 25px;
            border-top: 1px solid #eee;
            color: #555;
        }
        
        /* 联系我们 */
        .contact-section {
            padding: 80px 0;
            background: linear-gradient(rgba(10, 36, 99, 0.9), rgba(10, 36, 99, 0.9)), url('/template/jia/images/28.jpg');
            background-size: cover;
            background-position: center;
            color: white;
            text-align: center;
        }
        
        .contact-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .contact-info {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 50px;
        }
        
        .contact-card {
            background: rgba(255, 255, 255, 0.1);
            padding: 30px;
            border-radius: 10px;
            backdrop-filter: blur(5px);
            transition: var(--transition);
        }
        
        .contact-card:hover {
            transform: translateY(-5px);
            background: rgba(255, 255, 255, 0.15);
        }
        
        .contact-icon {
            font-size: 2rem;
            color: var(--secondary);
            margin-bottom: 15px;
        }
        
        .contact-card h3 {
            margin-bottom: 10px;
        }
        
        .contact-form {
            background: rgba(255, 255, 255, 0.1);
            padding: 40px;
            border-radius: 15px;
            backdrop-filter: blur(5px);
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-control {
            width: 100%;
            padding: 15px;
            border: none;
            border-radius: 5px;
            background: rgba(255, 255, 255, 0.9);
            color: var(--dark);
            font-size: 1rem;
        }
        
        .form-control:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.3);
        }
        
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        
     
        
        /* 动画 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .process-timeline::before {
                left: 30px;
            }
            
            .process-step {
                flex-direction: row !important;
            }
            
            .step-content {
                width: calc(100% - 80px);
                margin-left: 80px;
            }
            
            .process-step:nth-child(even) .step-content {
                border-left: 4px solid var(--secondary);
                border-right: none;
            }
            
            .process-step:nth-child(odd) .step-icon {
                right: auto;
                left: -80px;
            }
            
            .process-step:nth-child(even) .step-icon {
                left: -80px;
            }
        }
        
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                text-align: center;
            }
            
            .logo {
                margin-bottom: 15px;
            }
            
            nav ul {
                flex-direction: column;
                width: 100%;
            }
            
            nav ul li {
                margin: 10px 0;
            }
            
            .mobile-menu-btn {
                display: block;
                position: absolute;
                top: 15px;
                right: 15px;
            }
            
            .nav-menu {
                display: none;
                width: 100%;
            }
            
            .nav-menu.active {
                display: block;
            }
            
            .hero h1 {
                font-size: 2rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .step-content {
                padding: 20px;
            }
        }
        
        @media (max-width: 576px) {
            .odi-card, .advantage-card, .contact-card {
                padding: 20px;
            }
            
            .contact-form {
                padding: 20px;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
        }