/* ===== CLW 列表页 SEO 专题模块（类目/栏目定制内容）· 2026-09-14 =====
   字体沿用全站体系：标题 Oswald，正文 Poppins；品牌蓝 #0b75be。 */
.seo-mod {
    clear: both; margin: 34px 0 12px; background: #fff;
    border: 1px solid #e4ebf2; border-radius: 10px;
    box-shadow: 0 2px 12px rgba(16,42,67,.05);
    padding: 26px 28px 20px;
    font-family: 'Poppins', 'Microsoft YaHei', Arial, sans-serif;
    color: #4a5b6c; font-size: 14px; line-height: 1.85;
}
.seo-mod svg {
    width: 20px; height: 20px; flex: 0 0 auto; vertical-align: middle;
    fill: none; stroke: currentColor; stroke-width: 1.6;
    stroke-linecap: round; stroke-linejoin: round;
}
.seo-mod h2, .seo-mod h3 { font-family: 'Oswald', Arial, sans-serif; margin: 0; }

/* 头部：渐变蓝图标盒 + 标题 */
.seo-mod-head { display: flex; gap: 16px; align-items: center; margin-bottom: 14px; }
.seo-mod-ico {
    width: 54px; height: 54px; border-radius: 12px;
    background: linear-gradient(135deg, #0b75be, #0a4f86);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 10px rgba(11,117,190,.28);
}
.seo-mod-ico svg { width: 30px; height: 30px; color: #fff; stroke-width: 1.5; }
.seo-mod-head h2 { font-size: 21px; color: #152233; letter-spacing: .3px; line-height: 1.3; }
.seo-mod-kicker {
    margin: 3px 0 0; font-size: 11.5px; color: #8a98a8;
    letter-spacing: 1.2px; text-transform: uppercase; font-family: 'Oswald', Arial, sans-serif;
}
.seo-mod-intro { margin: 0 0 18px; color: #5b6b7b; }
.seo-mod-intro b, .seo-mod p b { color: #33475b; }

/* 双栏：What We Build / FAQ */
.seo-mod-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; margin-bottom: 16px; }
.seo-mod-grid section > h3 {
    display: flex; align-items: center; gap: 8px; margin-bottom: 12px;
    font-size: 15.5px; color: #01215c; letter-spacing: .4px; text-transform: uppercase;
}
.seo-mod-grid section > h3 svg { width: 18px; height: 18px; color: #0b75be; }

ul.seo-mod-feats { list-style: none; margin: 0; padding: 0; }
.seo-mod-feats li {
    display: flex; gap: 11px; align-items: flex-start;
    padding: 10px 12px; margin-bottom: 8px;
    background: #f6f9fc; border: 1px solid #eef3f8; border-radius: 8px;
}
.seo-mod-feats li:last-child { margin-bottom: 0; }
.seo-mod-feats li svg { width: 20px; height: 20px; color: #0b75be; margin-top: 3px; }
.seo-mod-feats li span { color: #4a5b6c; font-size: 13.5px; }

/* FAQ 折叠（原生 details，DOM 存在即可被索引） */
.seo-mod-faq details { border: 1px solid #e7eef5; border-radius: 8px; margin-bottom: 8px; background: #fff; }
.seo-mod-faq details:last-child { margin-bottom: 0; }
.seo-mod-faq summary {
    cursor: pointer; padding: 11px 13px; list-style: none;
    font-weight: 600; font-size: 13.5px; color: #152233;
    display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.seo-mod-faq summary::-webkit-details-marker { display: none; }
.seo-mod-faq summary::after {
    content: ""; width: 8px; height: 8px; flex: 0 0 auto;
    border-right: 2px solid #0b75be; border-bottom: 2px solid #0b75be;
    transform: rotate(45deg) translateY(-2px); transition: transform .18s ease;
}
.seo-mod-faq details[open] summary::after { transform: rotate(225deg) translateY(-2px); }
.seo-mod-faq details p { margin: 0; padding: 0 13px 12px; color: #5b6b7b; font-size: 13.5px; }

/* 内链区 */
.seo-mod-links { border-top: 1px dashed #dbe4ee; padding-top: 14px; }
.seo-mod-links p { margin: 6px 0; }
.seo-mod-lbl { color: #01215c; font-weight: 600; margin-right: 4px; }
.seo-mod .chip {
    display: inline-block; margin: 3px 8px 3px 0; padding: 3px 13px;
    border: 1px solid #cfe0ef; border-radius: 999px;
    color: #0b75be; font-size: 12.5px; text-decoration: none;
    background: #fff; transition: background .15s, color .15s;
}
.seo-mod .chip:hover { background: #0b75be; border-color: #0b75be; color: #fff; }

/* 信任条 */
.seo-mod-trust {
    display: flex; flex-wrap: wrap; gap: 8px 28px;
    margin-top: 14px; padding-top: 13px; border-top: 1px solid #eef3f8;
}
.seo-mod-trust span {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 12.5px; color: #5b6b7b; letter-spacing: .2px;
}
.seo-mod-trust svg { width: 17px; height: 17px; color: #0b75be; }

@media (max-width: 860px) {
    .seo-mod { padding: 18px 14px 14px; }
    .seo-mod-grid { grid-template-columns: 1fr; gap: 16px; }
    .seo-mod-head { gap: 12px; }
    .seo-mod-head h2 { font-size: 18px; }
    .seo-mod-ico { width: 44px; height: 44px; }
    .seo-mod-ico svg { width: 25px; height: 25px; }
}