* { margin: 0; padding: 0; box-sizing: border-box; }
    body {
        font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        background-color: #f9fafb; padding: 32px 20px; margin: 0; color: #1f2937;
    }
    .container {
        max-width: 1000px; margin: 0 auto; background: white; border-radius: 28px;
        box-shadow: 0 12px 30px rgba(0,0,0,0.05); padding: 40px 36px 48px;
    }
    p { font-size: 15.5px; line-height: 1.7; color: #2c3e4f; margin-bottom: 1.2em; }
    .section-title {
        font-size: 21px; font-weight: 700; color: #0f172a; margin: 2em 0 0.8em 0;
        padding-left: 14px; border-left: 4px solid #007BFF;
    }
    table {
        width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 15px;
    }
    th {
        background-color: #f1f5f9; color: #0f172a; font-weight: 600;
        padding: 12px 16px; text-align: left; border-bottom: 2px solid #e2e8f0;
    }
    td {
        padding: 11px 16px; border-bottom: 1px solid #e2e8f0; color: #2c3e4f;
    }
    tr:last-child td { border-bottom: none; }
    ul, ol { padding-left: 20px; margin-bottom: 1.2em; }
    ul li, ol li { font-size: 15.5px; line-height: 1.7; color: #2c3e4f; margin-bottom: 0.4em; }
    a { color: #007bff; text-decoration: none; }
    a:hover { text-decoration: underline; }
    strong { color: #0f172a; }

    /* 三列并列卡片 */
    .card-row {
        display: flex; gap: 20px; margin: 20px 0 24px;
    }
    .card-row .card {
        flex: 1; min-width: 0;
        background: #f8fafc; border-radius: 12px; padding: 20px;
        border: 1px solid #e2e8f0;
    }
    .card-row .card p.card-title {
        font-size: 15px; font-weight: 700; color: #0f172a; margin-bottom: 8px;
    }
    .card-row .card p {
        font-size: 14px; line-height: 1.6; color: #475569; margin: 0;
    }

    .cta-box {
        text-align: center; background: #ffffff; border-radius: 28px; margin-top: 28px;
        padding: 24px 20px; border: 1px solid #e5e7eb; box-shadow: 0 8px 20px rgba(0,0,0,0.03);
    }
    .btn {
        display: inline-block; padding: 14px 32px; background-color: #007BFF; color: #fff;
        text-decoration: none; font-size: 16px; font-weight: 600; border-radius: 40px;
        transition: background 0.2s ease; border: none; cursor: pointer; text-align: center;
    }
    .btn:hover { background-color: #0069d9; }

    @media (max-width: 760px) {
        .container { padding: 20px 16px 32px; }
        .card-row { flex-direction: column; }
    }