* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", sans-serif;
        }

        /* 配色：教育类清爽蓝白 + 温馨橙黄 */
        :root {
            --main: #2d85e0;
            --sub: #ff9c41;
            --light: #f5f9ff;
            --dark: #333;
            --gray: #666;
        }

        body {
            background: #fff;
            color: var(--dark);
            line-height: 1.6;
        }

        /* 头部 */
        .header {
            background: var(--main);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 99;
        }

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

        .logo {
            font-size: 1.5rem;
            font-weight: bold;
        }

        /* 横幅 */
        .banner {
            background: var(--light);
            padding: 3rem 0;
            text-align: center;
        }

        .banner h1 {
            font-size: 1.8rem;
            margin-bottom: 1rem;
            color: var(--main);
        }

        .banner p {
            max-width: 800px;
            margin: 0 auto;
            color: var(--gray);
        }

        /* 城市分布 */
        .city {
            padding: 2rem 0;
            background: #fff;
        }

        .title {
            text-align: center;
            font-size: 1.4rem;
            margin-bottom: 1.5rem;
            color: var(--main);
            position: relative;
        }

        .title::after {
            content: "";
            width: 60px;
            height: 3px;
            background: var(--sub);
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
        }

        .city-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .city-list span {
            padding: 6px 14px;
            background: var(--light);
            border-radius: 20px;
            color: var(--main);
        }

        /* 年级区块 */
        .grade-box {
            padding: 2.5rem 0;
            background: var(--light);
            margin-bottom: 1rem;
        }

        .grade-title {
            font-size: 1.3rem;
            color: var(--main);
            margin-bottom: 1rem;
            border-left: 4px solid var(--sub);
            padding-left: 10px;
        }

        .desc {
            color: var(--gray);
            margin-bottom: 1.2rem;
            text-align: justify;
        }

        /* 课程表格 */
        .course-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1rem 0;
            background: white;
        }

        .course-table th,
        .course-table td {
            border: 1px solid #ddd;
            padding: 10px;
            text-align: center;
        }

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

        /* 辅导模式 */
        .teach-type {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 1rem 0;
        }

        .type-item {
            flex: 1;
            min-width: 200px;
            background: white;
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }

        /* 师资点评 */
        .teacher, .comment {
            padding: 2rem 0;
        }

        .comment-item {
            background: white;
            padding: 15px;
            border-left: 4px solid var(--sub);
            margin-bottom: 10px;
        }

        /* FAQ */
        .faq {
            padding: 2.5rem 0;
            background: var(--light);
        }

        details {
            background: white;
            margin-bottom: 10px;
            padding: 12px 15px;
            border-radius: 6px;
        }

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

        details p {
            margin-top: 10px;
            color: var(--gray);
            line-height: 1.7;
        }

        /* 底部 */
        footer {
            background: var(--main);
            color: white;
            text-align: center;
            padding: 1.5rem 0;
            margin-top: 1rem;
        }

        /* 响应式 */
        @media (max-width:768px) {
            .course-table th, .course-table td {
                padding: 6px;
                font-size: 0.9rem;
            }
        }