:root{
  --bg:#FAF8F3; --card:#FFFFFF; --ink:#211F1B; --ink-soft:#5C574E; --ink-mute:#8B857A;
  --line:#E7E1D4; --accent:#C0552F; --accent-soft:#F6E8DF; --code-bg:#262320; --code-ink:#EDE8DE;
  --maxw:1080px;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#17161A; --card:#1E1D21; --ink:#EDEAE3; --ink-soft:#B4AFA4; --ink-mute:#8A857C;
        --line:#2F2D33; --accent:#E08A5F; --accent-soft:#33241D; --code-bg:#121114; --code-ink:#DDD8CD;}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

header.site{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:.02em}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--accent)}
.nav{display:flex;gap:22px;font-size:14px;color:var(--ink-soft)}
.nav a:hover{color:var(--accent)}

.hero{padding:72px 0 28px}
.eyebrow{font-size:13px;letter-spacing:.18em;color:var(--accent);margin-bottom:18px}
.hero h1{font-size:clamp(34px,5vw,54px);line-height:1.15;margin:0 0 18px;font-weight:700;letter-spacing:-.01em}
.hero p{max-width:560px;color:var(--ink-soft);font-size:17px;margin:0 0 24px}
.hero .stat{font-size:13px;color:var(--ink-mute);letter-spacing:.04em}

.chips{display:flex;flex-wrap:wrap;gap:10px;padding:8px 0 34px}
.chip{font-size:13px;padding:7px 15px;border:1px solid var(--line);border-radius:999px;
  color:var(--ink-soft);background:var(--card);cursor:pointer;transition:.16s}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.chip.on{background:var(--accent);border-color:var(--accent);color:#fff}

.card{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s}
.card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(60,45,25,.09);border-color:#D8CEBB}
.card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--accent-soft)}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .body{padding:20px 22px 22px}
.card .meta{font-size:12.5px;color:var(--ink-mute);letter-spacing:.03em;margin-bottom:10px;
  display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.card h3{margin:0 0 10px;font-size:19px;line-height:1.45;font-weight:600;letter-spacing:-.005em}
.card:hover h3{color:var(--accent)}
.card p{margin:0;color:var(--ink-soft);font-size:14.5px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

.feature{display:grid;grid-template-columns:1.15fr 1fr;gap:0;margin-bottom:26px}
.feature .thumb{aspect-ratio:auto;height:100%}
.feature .body{padding:34px 36px}
.feature h2{font-size:26px;line-height:1.4;margin:0 0 14px;font-weight:650}
.feature p{-webkit-line-clamp:4;font-size:15.5px}

.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;padding-bottom:60px}
.tagline{font-size:12px;color:var(--accent);background:var(--accent-soft);padding:2px 9px;border-radius:6px}
.empty{display:none}

/* ---------- article ---------- */
.article{max-width:760px;margin:0 auto;padding:34px 24px 20px}
.back{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--ink-mute);margin-bottom:26px}
.back:hover{color:var(--accent)}
.article .cover{border-radius:16px;overflow:hidden;margin-bottom:38px;border:1px solid var(--line)}
.article h1{font-size:clamp(27px,3.6vw,38px);line-height:1.35;margin:0 0 18px;font-weight:700;letter-spacing:-.01em}
.article .ameta{display:flex;gap:14px;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--ink-mute);
  padding-bottom:26px;border-bottom:1px solid var(--line);margin-bottom:38px}
.article .ameta .sep{color:var(--line)}
.prose{font-size:17px;line-height:1.98;color:#2B2823}
@media (prefers-color-scheme:dark){.prose{color:#DDD8CF}}
.prose p{margin:0 0 1.5em}
.prose h2{font-size:22px;line-height:1.5;margin:2.4em 0 .9em;padding-left:13px;border-left:4px solid var(--accent);
  font-weight:650;letter-spacing:-.005em}
.prose h3{font-size:18.5px;margin:2em 0 .7em;font-weight:600}
.prose h4{font-size:17px;margin:1.6em 0 .6em;font-weight:600;color:var(--ink-soft)}
.prose ul,.prose ol{margin:0 0 1.5em;padding-left:1.4em}
.prose li{margin:.45em 0}
.prose li::marker{color:var(--accent)}
.prose blockquote{margin:1.8em 0;padding:16px 22px;background:var(--accent-soft);
  border-left:3px solid var(--accent);border-radius:0 10px 10px 0;color:var(--ink-soft);font-size:16px}
.prose blockquote p{margin:0}
.prose blockquote p+p{margin-top:.8em}
.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Cascadia Code",monospace;
  font-size:.88em;background:rgba(192,85,47,.09);color:#A8461F;padding:2px 6px;border-radius:5px}
@media (prefers-color-scheme:dark){.prose code{color:#E9A076;background:rgba(224,138,95,.14)}}
.prose pre{background:var(--code-bg);color:var(--code-ink);padding:20px 22px;border-radius:12px;
  overflow-x:auto;margin:1.8em 0;line-height:1.7;-webkit-overflow-scrolling:touch}
.prose pre code{background:none;color:inherit;padding:0;font-size:13.5px;line-height:1.7}
.prose table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:14.5px;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.prose th{background:var(--accent-soft);font-weight:600;white-space:nowrap}
.prose tr:nth-child(even) td{background:rgba(0,0,0,.012)}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.6em 0}
.prose strong{font-weight:650}
.prose a{color:var(--accent);border-bottom:1px solid rgba(192,85,47,.35)}
.prose img{border-radius:10px;margin:1.6em auto}

.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:760px;margin:20px auto 70px;padding:0 24px}
.pager a{border:1px solid var(--line);border-radius:14px;padding:18px 20px;background:var(--card);transition:.16s}
.pager a:hover{border-color:var(--accent);transform:translateY(-2px)}
.pager .k{font-size:12px;color:var(--ink-mute);margin-bottom:6px;letter-spacing:.05em}
.pager .t{font-size:14.5px;font-weight:600;line-height:1.5}
.pager .next{text-align:right}

footer.site{border-top:1px solid var(--line);padding:34px 0 46px;color:var(--ink-mute);font-size:13px}
footer.site .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer.site .legal{width:100%;display:flex;flex-wrap:wrap;align-items:center;gap:8px 22px;
  margin-top:8px;padding-top:14px;border-top:1px dashed var(--line);font-size:12.5px}
footer.site .legal a{color:var(--ink-mute);display:inline-flex;align-items:center;gap:6px;
  transition:color .16s;border-bottom:1px solid transparent}
footer.site .legal a:hover{color:var(--accent);border-bottom-color:var(--accent)}
footer.site .legal a::before{content:"";width:12px;height:12px;flex:none;border-radius:3px;
  background:var(--accent);opacity:.55}

@media (max-width:820px){
  .feature{grid-template-columns:1fr}
  .feature .thumb{aspect-ratio:16/9;height:auto}
  .feature .body{padding:24px}
  .grid{grid-template-columns:1fr}
  .hero{padding:48px 0 20px}
  .article{padding:24px 20px 10px}
  .prose{font-size:16.5px}
  .pager{padding:0 20px}
}