:root{
  --bg:#f6f7f9; --card:#fff; --text:#1a1d21; --muted:#6b7280;
  --accent:#e63e2e; --border:#e9ebef; --tag:#eef2ff;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
.wrap{max-width:860px;margin:0 auto;padding:0 16px}
.topbar{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;padding:14px 16px}
.logo{font-size:20px;font-weight:800}
.meta{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:8px}
.dot{width:4px;height:4px;border-radius:50%;background:#d1d5db}
.live{display:flex;align-items:center;gap:6px}
.live i{width:8px;height:8px;border-radius:50%;background:#22c55e;display:inline-block;animation:blink 1.6s infinite}
@keyframes blink{50%{opacity:.35}}
.tabs{display:flex;gap:8px;padding:0 16px 12px;overflow-x:auto}
.tab{border:1px solid var(--border);background:#fff;padding:8px 16px;border-radius:999px;font-size:14px;cursor:pointer;white-space:nowrap}
.tab.active{background:var(--text);color:#fff;border-color:var(--text)}
.hot-list{display:flex;flex-direction:column;gap:12px;margin:18px 0}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;cursor:pointer;transition:.15s}
.card:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,0,0,.06)}
.card-top{display:flex;gap:12px;align-items:flex-start}
.rank{font-size:22px;font-weight:800;color:var(--accent);min-width:34px;text-align:center;font-style:italic}
.rank.n4{color:#9ca3af}
.card h2{margin:0 0 8px;font-size:17px;line-height:1.45}
.card p{margin:0 0 10px;color:var(--muted);font-size:14px;line-height:1.6}
.card-foot{display:flex;gap:10px;align-items:center;font-size:12px;color:var(--muted)}
.heat{background:#fef2f2;color:var(--accent);padding:3px 10px;border-radius:999px;font-weight:700}
.tag{background:var(--tag);padding:3px 10px;border-radius:999px}
.srcs{margin-left:auto}
.footnote{text-align:center;color:var(--muted);font-size:12px;padding:20px 0 40px;line-height:1.8}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;justify-content:center;align-items:flex-start;padding:24px 12px;z-index:50;overflow-y:auto}
.overlay.hidden{display:none}
.detail{background:#fff;border-radius:18px;max-width:720px;width:100%;padding:28px;position:relative;animation:up .2s ease}
@keyframes up{from{transform:translateY(12px);opacity:0}}
.close{position:absolute;right:16px;top:16px;border:none;background:#f3f4f6;width:32px;height:32px;border-radius:50%;cursor:pointer;font-size:14px}
.detail h1{font-size:22px;line-height:1.5;margin:0 0 12px;padding-right:36px}
.detail .dmeta{color:var(--muted);font-size:13px;margin-bottom:16px;display:flex;gap:12px;flex-wrap:wrap}
.timeline{border-left:2px solid var(--border);margin:18px 0 18px 6px;padding-left:18px;display:flex;flex-direction:column;gap:14px}
.tl-item{position:relative}
.tl-item::before{content:"";position:absolute;left:-24px;top:4px;width:10px;height:10px;border-radius:50%;background:var(--accent)}
.tl-time{font-size:12px;color:var(--muted)}
.tl-text{font-size:14px;margin-top:4px;line-height:1.6}
.rel{margin-top:8px}
.rel h3{font-size:15px;margin:18px 0 10px}
.rel a{display:block;padding:10px 12px;border:1px solid var(--border);border-radius:10px;margin-bottom:8px;text-decoration:none;color:var(--text);font-size:14px}
.rel a span{display:block;color:var(--muted);font-size:12px;margin-top:4px}
.loading{text-align:center;padding:60px;color:var(--muted)}
@media(max-width:600px){.detail{padding:20px}.card h2{font-size:16px}}