:root {
            --primary: #e63946;
            --secondary: #457b9d;
            --accent: #2a9d8f;
            --light: #f8f9fa;
            --dark: #1d3557;
            --gray: #6c757d;
            --light-gray: #e9ecef;
            --success: #2a9d8f;
            --warning: #e9c46a;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 10px;
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', 'Segoe UI', 'PingFang SC', sans-serif;
        }
        
        body {
            color: #333;
            background-color: #f9fbfd;
            line-height: 1.6;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 顶部栏 */
        .top-bar {
            background: var(--dark);
            color: white;
            padding: 8px 0;
            font-size: 14px;
        }
        
        .top-bar-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .contact-info span {
            margin-right: 20px;
        }
        
        .contact-info i {
            margin-right: 6px;
            color: var(--accent);
        }
        
        /* 导航栏 */
        header {
            background: white;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
        }
        
        .logo i {
            font-size: 28px;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
            gap: 28px;
        }
        
        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            position: relative;
        }
        
        .nav-links a:hover {
            color: var(--primary);
        }
        
        .nav-links a.active {
            color: var(--primary);
        }
        
        .nav-links a.active:after {
            content: '';
            position: absolute;
            width: 100%;
            height: 3px;
            background: var(--primary);
            bottom: -8px;
            left: 0;
            border-radius: 2px;
        }
        
        .apply-btn {
            background: linear-gradient(135deg, var(--primary), #f4a261);
            color: white;
            padding: 10px 24px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.2);
        }
        
        .apply-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(230, 57, 70, 0.3);
        }
        
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--dark);
            cursor: pointer;
        }
        
        /* 英雄区域 */
        .hero {
            background: linear-gradient(135deg, #1d3557 0%, var(--secondary) 100%);
            color: white;
            padding: 90px 0 70px;
            position: relative;
            overflow: hidden;
        }
        
        .hero-content {
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        
        .hero h1 {
            font-size: 44px;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .hero p {
            font-size: 20px;
            margin-bottom: 40px;
            opacity: 0.9;
        }
        
        .hero-btns {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }
        
        .btn-primary {
            background: var(--accent);
            color: white;
            padding: 16px 36px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            transition: var(--transition);
            box-shadow: 0 6px 20px rgba(42, 157, 143, 0.3);
        }
        
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(42, 157, 143, 0.4);
        }
        
        .btn-secondary {
            background: rgba(255, 255, 255, 0.15);
            color: white;
            padding: 16px 36px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
        }
        
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.5);
        }
        
        /* 套餐部分 */
        .section {
            padding: 30px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 36px;
            color: var(--dark);
            margin-bottom: 15px;
        }
        
        .section-title p {
            color: var(--gray);
            max-width: 700px;
            margin: 0 auto;
            font-size: 18px;
        }
        
        .plans-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 30px;
            margin-bottom: 60px;
        }
        
        .plan-card {
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
        }
        
        .plan-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
        }
        
        .plan-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--primary);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
        }
        
        .plan-header {
            padding: 30px;
            background: linear-gradient(135deg, #f8f9fa, #e9ecef);
            text-align: center;
        }
        
        .plan-name {
            font-size: 24px;
            color: var(--dark);
            margin-bottom: 10px;
        }
        
        .plan-price {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }
        
        .plan-price span {
            font-size: 18px;
            font-weight: 400;
            color: var(--gray);
        }
        
        .plan-desc {
            color: var(--gray);
            font-size: 16px;
        }
        
        .plan-features {
            padding: 30px;
        }
        
        .feature {
            display: flex;
            align-items: center;
            margin-bottom: 18px;
        }
        
        .feature i {
            color: var(--success);
            margin-right: 12px;
            font-size: 18px;
        }
        
        .feature span {
            font-size: 16px;
        }
        
        .feature.highlight {
            color: var(--primary);
            font-weight: 600;
        }
        
        .plan-footer {
            padding: 0 30px 30px;
        }
        
        .plan-btn {
            display: block;
            width: 100%;
            background: linear-gradient(135deg, var(--primary), #f4a261);
            color: white;
            padding: 15px;
            border-radius: 8px;
            text-decoration: none;
            text-align: center;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
        }
        
        .plan-btn:hover {
            background: linear-gradient(135deg, #d32f2f, #e76f51);
            box-shadow: 0 5px 15px rgba(230, 57, 70, 0.3);
        }
        
        /* 办理流程 */
        .process-steps {
            display: flex;
            justify-content: space-between;
            margin-bottom: 60px;
        }
        
        .step {
            flex: 1;
            text-align: center;
            padding: 0 15px;
        }
        
        .step-icon {
            width: 80px;
            height: 80px;
            background: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            color: var(--primary);
            margin: 0 auto 20px;
            box-shadow: var(--shadow);
            border: 2px solid #ffe5e7;
            transition: var(--transition);
        }
        
        .step:hover .step-icon {
            background: var(--primary);
            color: white;
            transform: scale(1.1);
        }
        
        .step h4 {
            font-size: 20px;
            margin-bottom: 10px;
            color: var(--dark);
        }
        
        /* 覆盖区域 */
        .coverage-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 25px;
            margin-bottom: 60px;
        }
        
        .coverage-card {
            background: white;
            border-radius: var(--radius);
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .coverage-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .coverage-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, #ffe5e7, #ffccd5);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            color: var(--primary);
            margin: 0 auto 20px;
        }
        
        .coverage-card h4 {
            font-size: 20px;
            margin-bottom: 10px;
            color: var(--dark);
        }
        
        /* 教程与技巧 */
        .tutorials-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
            margin-bottom: 60px;
        }
        
        .tutorial-card {
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        
        .tutorial-header {
            background: linear-gradient(135deg, var(--primary), #f4a261);
            color: white;
            padding: 20px;
            font-size: 20px;
            font-weight: 600;
        }
        
        .tutorial-content {
            padding: 25px;
        }
        
        .tutorial-content ul {
            list-style-position: inside;
        }
        
        .tutorial-content li {
            margin-bottom: 10px;
        }
        
        /* FAQ */
        .faq-container {
            max-width: 800px;
            margin: 0 auto 60px;
        }
        
        .faq-item {
            background: white;
            border-radius: var(--radius);
            margin-bottom: 15px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
        }
        
        .faq-question {
            padding: 20px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        
        .faq-question:hover {
            background: #f8f9fa;
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        
        .faq-answer.active {
            padding: 0 20px 20px;
            max-height: 500px;
        }
        
        /* 底部 */
        footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-section h4 {
            font-size: 20px;
            margin-bottom: 20px;
            color: white;
        }
        
        .footer-links a {
            display: block;
            color: #b0b7c3;
            text-decoration: none;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #8a94a6;
            font-size: 14px;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 36px;
            }
            
            .plans-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
            
            .process-steps {
                flex-direction: column;
                gap: 40px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
                border-radius: 0 0 var(--radius) var(--radius);
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .hero h1 {
                font-size: 32px;
            }
            
            .hero p {
                font-size: 18px;
            }
            
            .section-title h2 {
                font-size: 30px;
            }
            
            .hero-btns {
                flex-direction: column;
                align-items: center;
            }
            
            .btn-primary, .btn-secondary {
                width: 100%;
                max-width: 300px;
            }
            
            .top-bar-content {
                flex-direction: column;
                gap: 10px;
                text-align: center;
            }
            
            .contact-info span {
                margin-right: 10px;
                margin-bottom: 5px;
                display: inline-block;
            }
        }
        
        @media (max-width: 480px) {
            .plans-grid, .tutorials-container, .coverage-container {
                grid-template-columns: 1fr;
            }
            
            .hero {
                padding: 70px 0 50px;
            }
            
            .section {
                padding: 60px 0;
            }
            
            .plan-price {
                font-size: 40px;
            }
            
            .step-icon {
                width: 60px;
                height: 60px;
                font-size: 24px;
            }
        }