/* ============================================================
   default 主题 · 下载资源站版块样式（dl-site.css v1）
   覆盖：栏目下载列表卡片 / 详情页资源头部与下载卡 / 相关资源 / 热门排行
   在 front.css / content-models.css / front-theme.css 之后加载；
   配色一律引用主题变量，深浅色自动跟随 <html data-theme>。
   ============================================================ */

/* ============================================================
   1. 列表页筛选条（全部 / 编辑推荐 / 置顶精选）
   ============================================================ */
.dl-filter{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin:-8px 0 22px;}
.dl-fitem{display:inline-flex;align-items:center;padding:6px 16px;font-size:13px;color:#5b6577;
  background:#fff;border:1px solid var(--line);border-radius:999px;text-decoration:none;transition:.18s;}
.dl-fitem:hover{color:var(--blue-700);border-color:rgba(59,130,246,.55);background:rgba(59,130,246,.05);}
.dl-fitem.on{color:#fff;font-weight:600;background:linear-gradient(90deg,#2563eb,#06b6d4);
  border-color:transparent;box-shadow:0 4px 12px rgba(37,99,235,.24);}
.dl-total{margin-left:auto;font-size:12.5px;color:#9aa3b2;}
.dl-total b{color:var(--blue-700);font-size:15px;margin:0 2px;}
html[data-theme="dark"] .dl-fitem{background:var(--tt-card);border-color:var(--tt-line-2);color:var(--tt-ink-2);}
html[data-theme="dark"] .dl-fitem:hover{background:var(--tt-blue-soft);color:var(--tt-blue);border-color:#4c86f6;}
html[data-theme="dark"] .dl-fitem.on{background:linear-gradient(90deg,#2563eb,#0ea5e9);color:#fff;border-color:transparent;
  box-shadow:0 4px 12px rgba(37,99,235,.28);}
html[data-theme="dark"] .dl-total{color:#7183a3;}
html[data-theme="dark"] .dl-total b{color:var(--tt-blue);}

/* ============================================================
   2. 列表资源卡片增强（叠加在 content-models 的 .dl-* 基础之上）
   ============================================================ */
.dl-os{position:absolute;left:10px;bottom:10px;z-index:2;display:inline-flex;align-items:center;gap:5px;
  max-width:70%;padding:3px 10px;font-size:12px;line-height:1.6;color:#fff;white-space:nowrap;overflow:hidden;
  text-overflow:ellipsis;background:rgba(9,20,42,.55);border:1px solid rgba(255,255,255,.24);
  border-radius:999px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);}
.dl-desc{margin:0;font-size:12.5px;line-height:1.7;color:#8a93a6;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;}
.dl-media-ph svg{width:38px;height:38px;color:#b9c4d6;}
html[data-theme="dark"] .dl-desc{color:var(--tt-muted);}

.dl-card .dl-foot{flex-wrap:wrap;gap:10px;}
.dl-count{display:inline-flex;align-items:center;flex:1;min-width:0;gap:12px;font-size:12px;color:#9aa3b2;}
.dl-count .dl-num{display:inline-flex;align-items:center;gap:4px;}
.dl-count .dl-date{color:#b2b9c6;font-size:12px;}
.dl-count svg{width:14px;height:14px;opacity:.7;}
.dl-godl{display:inline-flex;align-items:center;gap:5px;flex:none;padding:5px 13px;font-size:12.5px;font-weight:600;
  color:#fff;background:linear-gradient(90deg,#2563eb,#06b6d4);border-radius:7px;text-decoration:none;
  box-shadow:0 4px 10px rgba(37,99,235,.22);transition:.18s;}
.dl-godl:hover{color:#fff;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 6px 14px rgba(37,99,235,.3);}
.dl-godl svg{width:13px;height:13px;}
html[data-theme="dark"] .dl-count{color:var(--tt-muted);}
html[data-theme="dark"] .dl-count .dl-date{color:var(--tt-faint);}
html[data-theme="dark"] .dl-godl{color:#fff;}

/* ============================================================
   3. 侧栏热门资源排行
   ============================================================ */
.side-body-nopad{padding:6px 0 !important;}
.hotlist{display:flex;flex-direction:column;}
.hotitem{display:flex;align-items:center;gap:10px;padding:9px 16px;text-decoration:none;color:inherit;transition:.16s;}
.hotitem:hover{background:rgba(59,130,246,.06);}
.hotrank{flex:none;width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:#9aa3b2;background:#eef1f6;border-radius:6px;line-height:1;}
.hotrank.top{color:#fff;background:linear-gradient(135deg,#ff6a5e,#feb47b);box-shadow:0 3px 8px rgba(255,106,94,.35);}
.hotname{flex:1;min-width:0;font-size:13px;line-height:1.5;color:#374151;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.hotmeta{flex:none;display:inline-flex;align-items:center;gap:4px;font-size:11.5px;color:#b2b9c6;}
.hotmeta svg{width:13px;height:13px;opacity:.75;}
html[data-theme="dark"] .hotitem:hover{background:var(--tt-blue-softer);}
html[data-theme="dark"] .hotrank{background:#1a2742;color:var(--tt-muted);}
html[data-theme="dark"] .hotname{color:var(--tt-ink-2);}
html[data-theme="dark"] .hotmeta{color:var(--tt-faint);}

/* ============================================================
   4. 详情页 · 资源头部信息卡（.dl-hero）
   ============================================================ */
.dl-detail .article-body{margin-top:20px;}
.dl-detail .tag-list{margin-top:16px;}
.dl-hero{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:26px;padding:26px 28px;
  border:1px solid #e2ecfb;border-radius:14px;
  background:linear-gradient(135deg,#f7faff,#eff4ff 52%,#eaf2ff);
  box-shadow:0 6px 22px rgba(30,64,175,.06);overflow:hidden;}
.dl-hero::after{content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;pointer-events:none;
  background:radial-gradient(circle,rgba(59,130,246,.14) 0%,rgba(255,255,255,0) 70%);}

.dl-hero-main{position:relative;min-width:0;}
.dl-kicker{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.dl-kcat{display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:var(--blue-700);
  padding:3px 11px;border:1px solid rgba(59,130,246,.4);border-radius:999px;text-decoration:none;
  background:rgba(255,255,255,.7);transition:.18s;}
.dl-kcat:hover{background:var(--blue-700);color:#fff;}
.dl-ktag{font-size:12px;line-height:1;font-weight:500;padding:5px 9px;border-radius:999px;}
.dl-ktag.rec{color:#b45309;background:#fef3c7;border:1px solid #fcd34d;}
.dl-ktag.top{color:#b91c1c;background:#fee2e2;border:1px solid #fca5a5;}
.dl-h1{font-size:clamp(23px,3vw,32px);line-height:1.32;margin:0 0 10px;letter-spacing:.2px;}
.dl-lead{margin:0;font-size:14px;line-height:1.85;color:#6b7688;display:-webkit-box;-webkit-line-clamp:3;
  -webkit-box-orient:vertical;overflow:hidden;}
.dl-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.dl-hero .dl-chip{font-size:12.5px;padding:4px 12px;}
.dl-stat{display:flex;align-items:center;flex-wrap:wrap;gap:8px 18px;margin-top:18px;padding-top:14px;
  border-top:1px dashed rgba(59,130,246,.25);font-size:12.5px;color:#7c8799;}
.dl-stat span{display:inline-flex;align-items:center;}
.dl-stat svg{width:13px;height:13px;margin-right:4px;opacity:.75;}

.dl-hero-aside{position:relative;min-width:0;padding:14px;background:rgba(255,255,255,.92);
  border:1px solid #e3ecfb;border-radius:14px;box-shadow:0 16px 40px rgba(30,60,130,.10);}
.dl-cover{position:relative;aspect-ratio:16/5;margin-bottom:14px;border-radius:10px;overflow:hidden;
  border:1px solid var(--line);background:#eef2f9;}
.dl-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;}
.dl-act{text-align:center;}
.dl-act-btn .download-btn{width:100%;padding:12px 16px;font-size:15px;font-weight:600;box-sizing:border-box;}
.dl-act-tip{margin:10px 0 0;font-size:11.5px;line-height:1.7;color:#a0a9ba;}
.dl-none{margin:0;padding:12px;font-size:13px;color:#9aa3b2;background:#f5f7fb;border-radius:8px;line-height:1.7;}
html[data-theme="dark"] .dl-hero{background:linear-gradient(135deg,#16233f,#101d36 55%,#0d1a31);border-color:#2c4272;
  box-shadow:0 6px 22px rgba(0,0,0,.3);}
html[data-theme="dark"] .dl-kcat{color:var(--tt-blue);background:rgba(20,35,70,.5);border-color:rgba(99,147,247,.5);}
html[data-theme="dark"] .dl-kcat:hover{background:#4c86f6;color:#fff;}
html[data-theme="dark"] .dl-ktag.rec{color:#fde68a;background:rgba(245,158,11,.16);border-color:rgba(245,158,11,.4);}
html[data-theme="dark"] .dl-ktag.top{color:#fecaca;background:rgba(239,68,68,.16);border-color:rgba(239,68,68,.4);}
html[data-theme="dark"] .dl-lead{color:var(--tt-ink-2);}
html[data-theme="dark"] .dl-stat{color:var(--tt-muted);border-top-color:var(--tt-line-2);}
html[data-theme="dark"] .dl-hero-aside{background:var(--tt-card);border-color:var(--tt-line-2);box-shadow:0 16px 40px rgba(0,0,0,.4);}
html[data-theme="dark"] .dl-cover{background:var(--tt-card-3);border-color:var(--tt-line);}
html[data-theme="dark"] .dl-act-tip{color:var(--tt-faint);}
html[data-theme="dark"] .dl-none{color:var(--tt-muted);background:var(--tt-card-3);}

/* ============================================================
   5. 详情页 · 相关资源
   ============================================================ */
.dl-related-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:28px 0 16px;}
.dl-related-head h2{font-size:20px;line-height:1.3;margin:0;padding-left:12px;color:var(--blue-900);
  position:relative;font-weight:700;}
.dl-related-head h2::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,#3b9ef5,#5d6df5);}
.dl-related-more{font-size:13px;color:#9aa3b2;text-decoration:none;transition:.18s;}
.dl-related-more:hover{color:var(--blue-700);}
.dl-related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(258px,1fr));gap:16px;margin-bottom:6px;}
.dl-ritem{display:flex;flex-direction:column;background:#fff;border:1px solid #eef1f6;border-radius:12px;
  overflow:hidden;text-decoration:none;transition:.18s;}
.dl-ritem:hover{border-color:rgba(59,130,246,.4);box-shadow:0 8px 24px rgba(0,0,0,.08);transform:translateY(-2px);}
.dl-ritem-media{position:relative;width:100%;aspect-ratio:16/5;display:flex;align-items:center;justify-content:center;
  background:#eef2f9;overflow:hidden;}
.dl-ritem-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.dl-ritem:hover .dl-ritem-media img{transform:scale(1.05);}
.dl-ritem-media>svg{width:30px;height:30px;color:#b9c4d6;}
.dl-ritem-top{position:absolute;left:8px;top:8px;z-index:2;font-size:11px;line-height:1;color:#fff;font-weight:600;
  padding:4px 8px;border-radius:6px;background:linear-gradient(135deg,#f56c6c,#f6a821);}
.dl-ritem-info{display:flex;flex-direction:column;gap:8px;padding:12px 14px 13px;}
.dl-ritem-title{font-size:14.5px;line-height:1.5;font-weight:600;color:#111827;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;}
.dl-ritem-meta{display:flex;align-items:center;flex-wrap:wrap;gap:6px;}
.dl-ritem-meta .dl-chip{font-size:11.5px;padding:2px 8px;line-height:1.7;}
.dl-ritem-count{margin-left:auto;display:inline-flex;align-items:center;gap:4px;font-size:11.5px;color:#b2b9c6;}
.dl-ritem-count svg{width:12px;height:12px;opacity:.75;}
html[data-theme="dark"] .dl-related-head h2{color:var(--tt-ink);}
html[data-theme="dark"] .dl-related-more{color:var(--tt-muted);}
html[data-theme="dark"] .dl-related-more:hover{color:var(--tt-blue);}
html[data-theme="dark"] .dl-ritem{background:var(--tt-card);border-color:var(--tt-line);}
html[data-theme="dark"] .dl-ritem:hover{border-color:#3a4a6e;box-shadow:0 10px 26px rgba(0,0,0,.4);}
html[data-theme="dark"] .dl-ritem-media{background:var(--tt-card-3);}
html[data-theme="dark"] .dl-ritem-media>svg{color:var(--tt-faint);}
html[data-theme="dark"] .dl-ritem-title{color:var(--tt-ink);}
html[data-theme="dark"] .dl-ritem-count{color:var(--tt-faint);}

/* ============================================================
   6. 响应式
   ============================================================ */
@media (max-width:1100px){
  .dl-hero{grid-template-columns:minmax(0,1fr) 300px;gap:20px;padding:22px;}
}
@media (max-width:900px){
  .dl-hero{grid-template-columns:1fr;}
  .dl-hero-aside{max-width:none;}
}
@media (max-width:640px){
  .dl-hero{padding:20px 16px;}
  .dl-hero-aside{padding:12px;}
  .dl-filter{gap:8px;margin-bottom:16px;}
  .dl-total{margin-left:0;width:100%;}
  .dl-related-grid{grid-template-columns:1fr;}
  .dl-list{grid-template-columns:1fr;}
  .dl-count{gap:8px;font-size:11.5px;}
}
@media (max-width:480px){
  .dl-count .dl-date{display:none;}
  .dl-godl{padding:5px 10px;font-size:12px;}
  .dl-hero .detail-title.dl-h1{font-size:21px;}
}
@media (prefers-reduced-motion:reduce){
  .dl-fitem,.dl-godl,.dl-ritem,.dl-ritem-media img,.dl-media img{transition:none;}
}
