.spec-wrapper {
    background-color: #f9fafb;
    padding: 40px 20px;
    border-radius: 24px;
    margin: 40px 0;
}
.section-title {
    font-family: 'Open Sans', sans-serif;
    font-weight: 700;
    font-size: 35px;
    color: #333333;
    text-align: center;
    margin-bottom: 16px;
}
.section-sub {
    font-family: 'Open Sans', sans-serif;
    font-weight: 400;
    font-size: 16px;
    color: #555555;
    text-align: center;
    margin-bottom: 32px;
}
.spec-table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    border: 2px solid #cbd5e1;
    font-family: 'Open Sans', sans-serif;
    font-size: 15px;
    color: #555555;
}
.spec-table td {
    padding: 10px 16px;
    border-bottom: 1px solid #cbd5e1;
    vertical-align: top;
    text-align: left;
}
.spec-table tr:last-child td {
    border-bottom: none;
}
.spec-feature {
    font-weight: 600;
    color: #0047AB;
    width: 30%;
    background-color: #ffffff;
}
/* 移动端：卡片式布局，字段在上，值在下，左对齐 */
@media (max-width: 768px) {
    .section-title { font-size: 28px; }
    .spec-wrapper { padding: 30px 16px; }
    .spec-table tr {
        display: block;
        margin-bottom: 20px;
        border: 2px solid #cbd5e1;
        border-radius: 16px;
        overflow: hidden;
    }
    .spec-table td {
        display: block;
        width: 100%;
        padding: 10px 16px;
        text-align: left;
    }
    .spec-table .spec-feature {
        background-color: #f8fafc;
        border-bottom: 1px solid #e2e8f0;
    }
}