/* ============================================================
   鸡蛋升学 · 门户扩展样式
   依赖 styles.css 中的设计变量（--ink / --blue-dark / --line 等）
   仅在 styles.css 之上做扩展与少量覆盖，不改变后台样式
   ============================================================ */

/* ---------- 顶部栏目条 ---------- */
.catbar { border-bottom: 1px solid var(--line); background: #fff; }
.catbar-inner { display: flex; gap: 8px; overflow-x: auto; padding: 10px 0; scrollbar-width: none; }
.catbar-inner::-webkit-scrollbar { display: none; }
.cat-pill { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; padding: 7px 15px; border: 1px solid var(--line); border-radius: 99px; font-size: 14px; transition: .18s; }
.cat-pill span { display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: #e9f7f8; color: var(--blue-dark); font-size: 11px; font-weight: 800; }
.cat-pill:hover { border-color: var(--blue); color: var(--blue-dark); }
.cat-pill.active { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }
.cat-pill.active span { background: rgba(255, 255, 255, .25); color: #fff; }

/* ---------- 顶部搜索 ---------- */
.nav-wrap .nav-search { display: flex; align-items: center; }
.nav-wrap .nav-search input { width: 158px; border: 1px solid var(--line); border-right: 0; border-radius: 99px 0 0 99px; padding: 8px 14px; font-size: 13px; outline: none; }
.nav-wrap .nav-search input:focus { border-color: var(--blue-dark); }
.nav-wrap .nav-search button { border: 0; background: var(--ink); color: #fff; padding: 9px 15px; border-radius: 0 99px 99px 0; font-size: 13px; cursor: pointer; }

/* ---------- 栏目卡（首页 9 宫格） ---------- */
.topic-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
.topic-grid a { display: block; border: 1px solid var(--line); background: #fff; padding: 26px 22px; transition: .2s; }
.topic-grid a:hover { transform: translateY(-5px); border-color: var(--blue); box-shadow: var(--shadow); }
.topic-grid a small { color: var(--muted); font-size: 13px; }

/* ---------- 页头 / 内容区 ---------- */
.page-head { background: linear-gradient(120deg, #eefbfc, #fff9ef); padding: 42px 0 30px; }
.page-head h1 { font-size: 36px; margin: 12px 0 10px; letter-spacing: -.02em; }
.page-intro { color: var(--muted); line-height: 1.95; max-width: 860px; margin: 0 0 8px; }
.page-meta { color: var(--muted); font-size: 14px; margin: 0; }
.page-body { padding: 38px 0; }
.page-search { display: flex; gap: 10px; margin: 18px 0 12px; max-width: 620px; }
.page-search input { border: 1px solid var(--line); padding: 12px 14px; outline: none; }
.page-search input:focus { border-color: var(--blue-dark); }

/* ---------- 资料库入口横幅 ---------- */
.library-band { background: var(--ink); color: #fff; padding: 54px 0; }
.library-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.library-band-inner span { color: var(--blue); font-size: 12px; letter-spacing: .22em; font-weight: 700; }
.library-band-inner h2 { font-size: 30px; margin: 10px 0 12px; }
.library-band-inner p { color: #b9cacc; line-height: 1.9; max-width: 700px; margin: 0; }
.library-band .button { background: var(--yellow); color: var(--ink); white-space: nowrap; }

/* ---------- 学校 / 项目标签 ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { display: inline-block; padding: 9px 15px; border: 1px solid var(--line); background: #fff; font-size: 14px; transition: .18s; }
.chip:hover { border-color: var(--blue); color: var(--blue-dark); }
.chip.muted { color: var(--muted); border-style: dashed; }
.school { display: flex; justify-content: space-between; align-items: center; gap: 14px; }
.school small { color: var(--muted); font-size: 12px; }

/* ---------- 资料库分组 ---------- */
.lib-group { margin-bottom: 34px; }
.lib-group-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); padding-bottom: 12px; margin-bottom: 18px; }
.lib-group-head a { display: flex; align-items: center; gap: 10px; }
.lib-group-head span { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: #e9f7f8; color: var(--blue-dark); font-weight: 800; font-size: 13px; }
.lib-group-head h2 { font-size: 21px; margin: 0; }
.lib-group-head small { color: var(--muted); white-space: nowrap; }

/* ---------- 分页 ---------- */
.pagination { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; align-items: center; margin: 44px 0 10px; }
.pagination a, .pagination span { padding: 9px 15px; border: 1px solid var(--line); background: #fff; font-size: 14px; }
.pagination a:hover { border-color: var(--blue); color: var(--blue-dark); }
.pagination a.active { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }
.pagination .disabled { color: #b9c6c6; }
.pagination .gap { border: 0; background: none; }

/* ---------- 文章详情 ---------- */
.article-detail { padding: 34px 0 10px; }
.article-detail h1 { font-size: 32px; line-height: 1.45; margin: 14px 0 12px; }
.article-meta { color: var(--muted); font-size: 14px; margin: 0 0 6px; }
.article-school { font-size: 14px; margin: 0 0 18px; }
.article-school a { color: var(--blue-dark); font-weight: 700; }
.article-cover { max-width: 100%; height: auto; display: block; margin: 22px auto; border-radius: 4px; }
.article-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; max-width: 820px; margin: 32px auto 0; }
.article-actions .ghost { display: inline-flex; align-items: center; }
.article-follow { display: flex; align-items: center; gap: 20px; max-width: 820px; margin: 34px auto 0; padding: 22px; background: var(--cream); border: 1px solid var(--line); }
.article-follow img { width: 92px; height: 92px; object-fit: contain; background: #fff; }
.article-follow b { font-size: 17px; }
.article-follow p { color: var(--muted); margin: 8px 0 0; line-height: 1.8; }
.disclaimer { max-width: 820px; margin: 30px auto; padding: 16px 20px; background: #f5f9f8; color: var(--muted); font-size: 13px; line-height: 1.9; }

/* ---------- 关于页 ---------- */
.about-body { max-width: 900px; }
.about-list { line-height: 2.1; padding-left: 20px; }

/* ---------- 关注区块补充 ---------- */
.follow-note { font-size: 14px; }
.qr-list { grid-template-columns: repeat(3, 1fr); gap: 18px; }
.qr-list figure { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 12px; padding: 22px 14px; }
.qr-list img { width: 132px; height: 132px; object-fit: contain; }
.qr-list figcaption { display: flex; flex-direction: column; gap: 6px; align-items: center; }
.about-qr { max-width: 760px; }

/* ---------- 页脚（三列 + 二维码） ---------- */
footer .foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr auto; gap: 40px; align-items: start; }
footer .foot-brand b { font-size: 20px; letter-spacing: .08em; }
footer .foot-brand p { margin: 8px 0 0; color: #b9cacc; font-size: 13px; line-height: 1.8; text-align: left; }
footer .foot-addr { color: #8fa3a5; }
footer .foot-col { display: flex; flex-direction: column; gap: 10px; }
footer .foot-col b { font-size: 14px; letter-spacing: .1em; margin-bottom: 4px; }
footer .foot-col a { color: #b9cacc; font-size: 13px; }
footer .foot-col a:hover { color: #fff; }
footer .foot-qr { text-align: center; }
footer .foot-qr img { width: 108px; height: 108px; object-fit: contain; background: #fff; padding: 6px; border-radius: 4px; }
footer .foot-qr small { display: block; color: #b9cacc; font-size: 12px; margin-top: 8px; }
footer .foot-bottom { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 34px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .14); color: #8fa3a5; font-size: 13px; }
footer .foot-bottom a { color: #b9cacc; }
footer .foot-beian { display: flex; align-items: center; gap: 14px; }
footer .foot-beian a { display: inline-flex; align-items: center; gap: 5px; text-decoration: none; }
footer .foot-beian a:hover { text-decoration: underline; }
footer .foot-beian img { width: 16px; height: 18px; display: block; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  footer .foot-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .library-band-inner { flex-direction: column; align-items: flex-start; gap: 22px; }
}
@media (max-width: 900px) {
  .topic-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-wrap .nav-search { grid-column: 1 / -1; }
  .page-head h1 { font-size: 28px; }
  .article-detail h1 { font-size: 25px; }
}
@media (max-width: 620px) {
  .topic-grid { grid-template-columns: 1fr; }
  footer .foot-grid { grid-template-columns: 1fr; text-align: left; }
  footer .foot-qr { text-align: left; }
  footer .foot-bottom { flex-direction: column; align-items: flex-start; }
  .page-search { flex-direction: column; }
  .article-follow { flex-direction: column; align-items: flex-start; }
  .lib-group-head { flex-direction: column; align-items: flex-start; gap: 8px; }
}