h1 {
    margin: 0 0 30px;
    text-align: center;
    font-size: 32px;
    letter-spacing: 1px;
}

.card {
    background: #fff;
    border-radius: 18px;
    padding: 36px 44px;
    box-shadow: 0 24px 60px rgba(39, 57, 87, 0.08);
    margin-bottom: 32px;
}

    .card h2 {
        margin-top: 0;
        font-size: 22px;
    }

    .card section + section {
        margin-top: 30px;
    }

.list {
    line-height: 1.8;
    color: #4f5563;
}

    .list strong {
        color: #222;
    }

.tips {
    background: #fff7f1;
    border-radius: 12px;
    padding: 18px 24px;
    color: #f57c00;
    margin-top: 18px;
}

.wechat-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.wechat-card {
    border: 1px solid #f2f2f2;
    border-radius: 14px;
    text-align: center;
    padding: 24px 18px 30px;
    box-shadow: 0 12px 30px rgba(31, 45, 61, 0.08);
    background: #fff;
}

    .wechat-card img {
        width: 180px;
        height: 180px;
        object-fit: cover;
        border-radius: 12px;
        border: 6px solid #f7f7f7;
        margin-bottom: 12px;
    }

.section-title {
    font-size: 20px;
    margin-bottom: 12px;
    border-left: 4px solid #ff8346;
    padding-left: 12px;
}

footer {
    text-align: center;
    padding: 40px 0 60px;
    color: #98a0b3;
    font-size: 13px;
}

@media (max-width: 768px) {   
    .card {
        padding: 26px 22px;
    }
}