/* CSS Document */

        :root {
            --primary-color: #1a73e8;
            --secondary-color: #0d47a1;
            --accent-color: #e8f0fe;
            --text-color: #333;
            --light-text: #666;
            --border-color: #e0e0e0;
            --background-color: #f8f9fa;
            --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --hover-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
        }
        
        body {
            background-color: var(--background-color);
            color: var(--text-color);
            line-height: 1.6;
            padding: 0;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        
        .section {
            background: white;
            border-radius: 10px;
            padding: 30px;
            margin-bottom: 30px;
            box-shadow: var(--card-shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .section:hover {
            box-shadow: var(--hover-shadow);
            transform: translateY(-3px);
        }
        
        h1 {
            color: var(--secondary-color);
            text-align: center;
            margin-bottom: 40px;
            font-size: 36px;
            position: relative;
            padding-bottom: 15px;
        }
        
        h1:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 4px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border-radius: 2px;
        }
        
        h2 {
            color: var(--secondary-color);
            margin-bottom: 25px;
            font-size: 28px;
            border-left: 5px solid var(--primary-color);
            padding-left: 15px;
        }
        
        h3 {
            color: var(--secondary-color);
            margin: 20px 0 15px;
            font-size: 22px;
        }
        
        h4 {
            color: var(--text-color);
            margin: 15px 0 10px;
            font-size: 18px;
        }
        
        p {
            margin-bottom: 15px;
            text-align: justify;
        }
        
        .highlight-box {
            background-color: var(--accent-color);
            border-left: 4px solid var(--primary-color);
            padding: 20px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        
        .row {
            display: flex;
            flex-wrap: wrap;
            margin: 0 -15px;
        }
        
        .col {
            flex: 1;
            min-width: 300px;
            padding: 0 15px;
            margin-bottom: 20px;
        }
        
        .service-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 25px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .service-card:before {
            content: '-';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
        }
        
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--hover-shadow);
        }
        
        .price-tag {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 20px;
            font-weight: bold;
            display: inline-block;
            margin: 10px 0;
        }
        
        .btn {
            display: inline-block;
            background: var(--primary-color);
            color: white;
            padding: 12px 25px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: bold;
            margin: 15px 10px 5px 0;
            transition: all 0.3s;
            text-align: center;
            border: none;
            cursor: pointer;
        }
        
        .btn:hover {
            background: var(--secondary-color);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        
        .btn-secondary {
            background: #5f6368;
        }
        
        .btn-secondary:hover {
            background: #3c4043;
        }
        
        .list-item {
            margin-bottom: 10px;
            padding-left: 25px;
            position: relative;
        }
        
        .list-item:before {
            color: var(--primary-color);
            position: absolute;
            left: 0;
            font-weight: bold;
        }
        
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }
        
        .faq-item {
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 20px;
        }
        
        .faq-question {
            font-weight: bold;
            color: var(--secondary-color);
            margin-bottom: 10px;
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
        }
        
        .faq-question:before {
            margin-right: 10px;
            font-size: 12px;
            transition: transform 0.3s;
        }
        
        .faq-item.active .faq-question:before {
            transform: rotate(90deg);
        }
        
        .faq-answer {
            display: none;
            padding-left: 22px;
        }
        
        .faq-item.active .faq-answer {
            display: block;
        }
        
        .tag {
            display: inline-block;
            background: #e8f0fe;
            color: var(--primary-color);
            padding: 8px 15px;
            border-radius: 20px;
            margin: 5px;
            font-size: 14px;
            transition: all 0.3s;
        }
        
        .tag:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }
        
        .team-member {
            text-align: center;
            padding: 20px;
            border-radius: 10px;
            background: white;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
            transition: all 0.3s;
        }
        
        .team-member:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        .team-avatar {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            margin: 0 auto 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 40px;
            font-weight: bold;
        }
        
        .guarantee-box {
            background: #f0f7ff;
            border: 1px solid #c2dfff;
            border-radius: 8px;
            padding: 20px;
            margin: 15px 0;
            display: flex;
            align-items: flex-start;
        }
        
        .guarantee-box:before {
            color: var(--primary-color);
            font-weight: bold;
            font-size: 20px;
            margin-right: 15px;
        }
        
        .feature-list {
            display: flex;
            flex-wrap: wrap;
            margin: 20px 0;
        }
        
        .feature-item {
            flex: 1 0 45%;
            margin: 10px;
            padding: 15px;
            background: #f8f9fa;
            border-radius: 8px;
            border-left: 4px solid var(--primary-color);
        }
        
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
            border-radius: 8px;
            overflow: hidden;
        }
        
        .comparison-table th, .comparison-table td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        
        .comparison-table th {
            background: var(--primary-color);
            color: white;
            font-weight: bold;
        }
        
        .comparison-table tr:nth-child(even) {
            background-color: #f8f9fa;
        }
        
        .comparison-table tr:hover {
            background-color: var(--accent-color);
        }
        
        .contact-info {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-top: 20px;
        }
        
        .contact-method {
            flex: 1;
            min-width: 200px;
            text-align: center;
            padding: 20px;
            background: #f8f9fa;
            border-radius: 8px;
            margin: 10px;
        }
        
        footer {
            background: var(--secondary-color);
            color: white;
            text-align: center;
            padding: 20px;
            margin-top: 30px;
            border-radius: 10px;
        }
        
        @media (max-width: 768px) {
            .col {
                min-width: 100%;
            }
            
            .grid-3 {
                grid-template-columns: 1fr;
            }
            
            .feature-item {
                flex: 1 0 100%;
            }
            
            h1 {
                font-size: 28px;
            }
            
            h2 {
                font-size: 24px;
            }
        }