/* 主体配色：教育风 蓝色+白色+浅灰 */
        :root {
            --main: #2d8cf0;
            --sub: #6ac1f0;
            --light: #f5f9ff;
            --dark: #333;
            --gray: #666;
        }

 

        /* 容器 */
        .container {
            width: 92%;
            max-width: 1200px;
            margin: 0 auto;
        }

        /* 头部 */
       
        .header {
            background-color: var(--main-color);
            color: white;
            padding: 20px 0;
            text-align: center;
            border-radius: 0 0 12px 12px;
        }

        .header h1 {
            font-size: 24px;
            margin-bottom: 8px;   color: white;
        }

        .header p {
            font-size: 16px;
   color: white;
        }

        .header-wrap {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

      

 

        /* 移动端导航隐藏 */
        @media (max-width:768px) {
         
            .header-wrap {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /*  banner */
        .banner {
            background: linear-gradient(to right, var(--main), var(--sub));
            color: white;
            padding: 60px 0;
            text-align: center;
        }

        .banner h2 {
            font-size: 28px;
            margin-bottom: 10px;
        }

        .banner p {
            font-size: 16px;
            max-width: 800px;
            margin: 0 auto;
        }

        /* 通用模块 */
        .section {
            padding: 40px 0;
        }

        .title {
            text-align: center;
            color: var(--main);
            margin-bottom: 30px;
            font-size: 24px;
            position: relative;
        }

        .title::after {
            content: "";
            width: 60px;
            height: 3px;
            background: var(--main);
            display: block;
            margin: 8px auto 0;
            border-radius: 3px;
        }

        /* 年级模块 */
        .grade-box {
            background: white;
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

        .grade-box h3 {
            color: var(--main);
            margin-bottom: 10px;
        }

        /* 表格样式 */
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 15px 0;
            background: white;
        }

        table th, table td {
            border: 1px solid #ddd;
            padding: 12px;
            text-align: center;
        }

        table th {
            background: var(--main);
            color: white;
        }

        table tr:nth-child(even) {
            background: #f9f9f9;
        }

        /* 家教类型 */
        .teach-type {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px,1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .type-card {
            background: white;
            padding: 20px;
            border-radius: 10px;
            text-align: center;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }

        .type-card h4 {
            color: var(--main);
            margin-bottom: 8px;
        }
 
 

        /* FAQ */
        .faq-item {
            margin-bottom: 12px;
        }

        details {
            background: white;
            padding: 15px;
            border-radius: 8px;
            cursor: pointer;
        }

        summary {
            font-weight: bold;
            color: var(--main);
        }

        details p {
            margin-top: 10px;
            color: var(--gray);
        }