.container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 头部区域 - 上海风格 */
        .hero {
            background: linear-gradient(125deg, #0a2b3e 0%, #1d4c6e 100%);
            color: white;
            padding: 3rem 0 2.5rem;
            border-radius: 0 0 2rem 2rem;
            margin-bottom: 2rem;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .hero h1 {
            font-size: 2.2rem;
            margin-bottom: 0.75rem;
            letter-spacing: -0.2px;
 color: white;
        }
        .hero p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 750px;
 color: white;
        }
        .sh-badge {
            display: inline-block;
            background: #ffb347;
            color: #1e2a3e;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.25rem 0.9rem;
            border-radius: 30px;
            margin-top: 0.8rem;
        }

        /* 卡片通用 */
        .card {
            background: white;
            border-radius: 28px;
            padding: 1.8rem 2rem;
            margin-bottom: 2rem;
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
            transition: all 0.2s ease;
            border: 1px solid #eef2f6;
        }
        .card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
        }
        h2 {
            font-size: 1.7rem;
            border-left: 6px solid #ffb347;
            padding-left: 1rem;
            margin-bottom: 1.2rem;
            color: #1b4c6e;
        }
        h3 {
            font-size: 1.25rem;
            margin: 1rem 0 0.6rem 0;
            color: #2c6285;
        }
        .sub {
            color: #4f6f8a;
            margin-bottom: 1rem;
            font-weight: 500;
        }

        /* 网格布局 */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.8rem;
        }
        .strength-card {
            background: #ecf9f0;
            border-radius: 24px;
            padding: 1.3rem;
        }
        .weak-card {
            background: #fff0e8;
            border-radius: 24px;
            padding: 1.3rem;
        }
        .strength-card h4, .weak-card h4 {
            font-size: 1.2rem;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }


         .strength-card ul li,.weak-card ul li ,.grid-2 ul li{ margin: 20px 0;}

        /* 表格区域 */
        .table-wrapper {
            overflow-x: auto;
            margin: 1rem 0 0.5rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            border-radius: 20px;
            overflow: hidden;
            background: #fff;
        }
        th {
            background-color: #eef3fa;
            padding: 12px 8px;
            text-align: center;
            font-weight: 700;
            color: #1e4a6b;
        }
        td {
            border-bottom: 1px solid #e6edf4;
            padding: 10px 8px;
            text-align: center;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .table-caption {
            font-size: 0.8rem;
            color: #5c6f82;
            margin-top: 6px;
            text-align: right;
        }

        /* 标签样式 */
        .tag {
            background: #eef2f9;
            padding: 4px 10px;
            border-radius: 24px;
            font-size: 0.75rem;
            display: inline-block;
            margin: 2px 4px;
        }
        .hot {
            color: #c53a1f;
            font-weight: 600;
        }

        /* 家教课程 */
        .course-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin: 1rem 0;
        }
        .course-pill {
            background: #eef2fa;
            border-radius: 40px;
            padding: 0.5rem 1.2rem;
            font-size: 0.9rem;
            font-weight: 500;
        }

        /* FAQ 使用 details/summary 原生组件，无JS */
        .faq-list {
            margin-top: 0.8rem;
        }
        .faq-item {
            background: #fafcff;
            border: 1px solid #e2ecf5;
            border-radius: 20px;
            margin-bottom: 1rem;
            overflow: hidden;
        }
        .faq-item summary {
            font-weight: 700;
            font-size: 1rem;
            padding: 1rem 1.4rem;
            background: #ffffff;
            cursor: pointer;
            list-style: none;  /* 隐藏默认三角，用自定义 */
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: #1e5a7d;
            border-radius: 20px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: "➕";
            font-size: 1.2rem;
            font-weight: normal;
            transition: transform 0.2s;
        }
        .faq-item[open] summary::after {
            content: "➖";
        }
        .faq-answer {
            padding: 0.2rem 1.4rem 1.2rem 1.4rem;
            border-top: 1px solid #e9f0f5;
            background: #fefef9;
            color: #2b4459;
            line-height: 1.5;
        }
        .faq-answer p {
            margin: 0.5rem 0;
        }

        footer {
            background: #0a2b3e;
            color: #cbdde9;
            text-align: center;
            padding: 1.8rem;
            border-radius: 1.5rem 1.5rem 0 0;
            margin-top: 2rem;
            font-size: 0.85rem;
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .card {
                padding: 1.2rem;
            }
        }
        hr {
            margin: 0.8rem 0;
        }
        .note {
            background: #fef7e0;
            border-radius: 20px;
            padding: 0.8rem 1rem;
            margin-top: 1rem;
        }