:root {
  --bg: #f7f6f3;
  --surface: #ffffff;
  --fg: #1c1c1e;
  --muted: #64646b;
  --line: #e3e0da;
  --accent: #2f5fd0;
  --accent-soft: #e8eefc;
  --ok: #1f7a4d;
  --ok-soft: #e3f3ea;
  --exit: #9a5b00;
  --exit-soft: #fdf0d9;
  --chip: #efede8;
  --shadow: 0 1px 2px rgba(0, 0, 0, .05), 0 4px 16px rgba(0, 0, 0, .04);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121214;
    --surface: #1b1b1f;
    --fg: #ececf0;
    --muted: #a0a0aa;
    --line: #2d2d33;
    --accent: #7ea2ff;
    --accent-soft: #1d2640;
    --ok: #5fd39a;
    --ok-soft: #15301f;
    --exit: #f0b45a;
    --exit-soft: #3a2a10;
    --chip: #26262b;
    --shadow: none;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
html[data-lang="zh"] .en, html[data-lang="en"] .zh { display: none !important; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
header.top {
  position: sticky; top: 0; z-index: 10; background: var(--bg);
  border-bottom: 1px solid var(--line);
}
header.top .wrap { display: flex; align-items: center; gap: 16px; height: 54px; }
.brand { font-weight: 700; letter-spacing: .2px; color: var(--fg); white-space: nowrap; }
.brand small { font-weight: 500; color: var(--muted); margin-left: 6px; }
nav.fams { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; flex: 1; min-width: 0; }
nav.fams::-webkit-scrollbar { display: none; }
nav.fams a { padding: 4px 8px; border-radius: 6px; color: var(--muted); font-size: 13.5px; white-space: nowrap; }
nav.fams a:hover, nav.fams a.on { background: var(--chip); color: var(--fg); text-decoration: none; }
.lang { display: flex; border: 1px solid var(--line); border-radius: 7px; overflow: hidden; flex: none; }
.lang button { border: 0; background: transparent; color: var(--muted); padding: 4px 10px; font: inherit; font-size: 13px; cursor: pointer; }
html[data-lang="zh"] .lang .b-zh, html[data-lang="en"] .lang .b-en { background: var(--fg); color: var(--bg); }
.hero { padding: 44px 0 18px; }
.hero h1 { font-size: 34px; line-height: 1.2; margin: 0 0 12px; letter-spacing: -.3px; }
.hero p { max-width: 840px; color: var(--muted); margin: 0 0 10px; font-size: 16px; }
.stats { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin: 26px 0 8px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; box-shadow: var(--shadow); }
.stat b { display: block; font-size: 26px; line-height: 1.15; font-variant-numeric: tabular-nums; }
.stat span { color: var(--muted); font-size: 13px; }
section { padding: 26px 0; }
h2 { font-size: 22px; margin: 0 0 6px; letter-spacing: -.2px; }
.sub { color: var(--muted); margin: 0 0 18px; max-width: 860px; }
.note { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 10px 14px; border-radius: 0 8px 8px 0; margin: 14px 0; font-size: 14px; max-width: 900px; }
.note p { margin: 4px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); color: var(--fg); display: flex; flex-direction: column; }
a.card:hover { text-decoration: none; border-color: var(--accent); }
.card .thumb { aspect-ratio: 16 / 9; background: #0e0e10 center / cover no-repeat; position: relative; }
.card .body { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.card h3 { margin: 0; font-size: 16px; line-height: 1.35; }
.card .code { color: var(--muted); font-weight: 600; margin-right: 6px; }
.card .meta { color: var(--muted); font-size: 13px; }
.chips { display: flex; flex-wrap: wrap; gap: 5px; }
.chip { background: var(--chip); border-radius: 5px; padding: 1px 7px; font-size: 12.5px; color: var(--fg); }
.badge { display: inline-flex; align-items: center; gap: 4px; border-radius: 5px; padding: 1px 8px; font-size: 12.5px; font-weight: 600; white-space: nowrap; }
.badge.exit { background: var(--exit-soft); color: var(--exit); }
.badge.do { background: var(--ok-soft); color: var(--ok); }
.badge.speed { position: absolute; top: 8px; left: 8px; background: rgba(0, 0, 0, .66); color: #fff; z-index: 2; pointer-events: none; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 12px; align-items: center; }
.filters select, .filters input { font: inherit; font-size: 14px; padding: 6px 9px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface); color: var(--fg); max-width: 100%; }
.filters input { flex: 1; min-width: 160px; }
.filters .count { color: var(--muted); font-size: 13px; }
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; color: var(--muted); background: var(--surface); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.id { white-space: nowrap; font-weight: 600; }
td.small { color: var(--muted); }
#cases td:nth-child(3) { min-width: 220px; }
#cases td:nth-child(5) { min-width: 260px; }
.fam-head { padding: 34px 0 6px; }
.crumb { color: var(--muted); font-size: 13.5px; margin-bottom: 8px; }
.fam-head h1 { font-size: 30px; margin: 0 0 10px; line-height: 1.2; }
.fam-head .lead { max-width: 900px; font-size: 16px; margin: 0; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 18px 0 6px; }
.fact { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.fact h4 { margin: 0 0 4px; font-size: 12.5px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); }
.fact p { margin: 0; }
.fact ul { margin: 0; padding-left: 18px; }
.jump { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0 0; }
.jump a { font-size: 12.5px; padding: 2px 8px; border: 1px solid var(--line); border-radius: 6px; color: var(--fg); background: var(--surface); }
.jump a.exit { border-color: var(--exit); color: var(--exit); }
.case { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); background: var(--surface); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; margin: 0 0 18px; box-shadow: var(--shadow); scroll-margin-top: 70px; }
.case .media { background: #0e0e10; position: relative; display: flex; flex-direction: column; justify-content: center; }
.case video { width: 100%; display: block; aspect-ratio: 16 / 9; background: #0e0e10; }
.case .vcap { color: #b7b7c0; font-size: 12px; padding: 6px 10px; background: #0e0e10; }
.case .novid { color: #b7b7c0; padding: 30px 18px; text-align: center; font-size: 14px; aspect-ratio: 16 / 9; display: flex; align-items: center; justify-content: center; }
.case .info { padding: 14px 18px 16px; min-width: 0; }
.case h3 { margin: 0 0 6px; font-size: 17px; line-height: 1.35; }
.case h3 .cid { color: var(--muted); font-weight: 600; margin-right: 8px; font-size: 14px; }
.case .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
dl.attrs { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 7px 12px; margin: 0; font-size: 14px; }
dl.attrs dt { color: var(--muted); font-size: 13px; padding-top: 1px; }
dl.attrs dd { margin: 0; overflow-wrap: anywhere; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; padding: 22px 0 40px; margin-top: 20px; }
footer p { margin: 4px 0; }
@media (max-width: 900px) {
  .case { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .facts { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .hero h1 { font-size: 27px; }
  .brand small { display: none; }
  dl.attrs { grid-template-columns: 1fr; gap: 2px; }
  dl.attrs dd { margin-bottom: 7px; }
}