/* Pulucat · video / article pages · quiet-editorial system */

@font-face {
  font-family: "Glow Sans SC";
  src: url("fonts/GlowSansSC-Normal-Medium-subset.woff2") format("woff2");
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Schibsted Grotesk";
  src: url("fonts/SchibstedGrotesk-subset.woff2") format("woff2");
  font-weight: 400 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "LXGW WenKai";
  src: url("fonts/LXGWWenKai-Regular-subset.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}

:root {
  --paper:   #F4F1E9;
  --surface: #FAF8F2;
  --ink:     #191E1B;
  --ink-2:   #4C554E;
  --muted:   #8C918A;
  --forest:  #123128;
  --signal:  #1F5D4E;
  --mark:    rgba(31,93,78,.16);
  --line:    rgba(25,30,27,.13);
  --line-2:  rgba(25,30,27,.07);
  --disp: "Glow Sans SC","Schibsted Grotesk","PingFang SC","Hiragino Sans GB","Noto Sans SC",-apple-system,sans-serif;
  --body: "PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --hand: "LXGW WenKai","STKaiti","Kaiti SC","KaiTi",Georgia,serif;
  --mono: ui-monospace,SFMono-Regular,Menlo,"SF Mono",monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:#12130F; --surface:#191B15; --ink:#ECEADD; --ink-2:#B0B5AA;
    --muted:#828779; --forest:#0C1F19; --signal:#8FC7B5; --mark:rgba(143,199,181,.20);
    --line:rgba(236,234,221,.14); --line-2:rgba(236,234,221,.07);
  }
}
:root[data-theme="dark"] {
  --paper:#12130F; --surface:#191B15; --ink:#ECEADD; --ink-2:#B0B5AA;
  --muted:#828779; --forest:#0C1F19; --signal:#8FC7B5; --mark:rgba(143,199,181,.20);
  --line:rgba(236,234,221,.14); --line-2:rgba(236,234,221,.07);
}
html[lang="en"] {
  --disp: "Schibsted Grotesk","Glow Sans SC",-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  --body: "Schibsted Grotesk",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --hand: Georgia,"Times New Roman",serif;
}
html[lang="zh-Hant"] {
  --disp: "PingFang TC","Noto Sans TC","Microsoft JhengHei","Glow Sans SC",sans-serif;
  --body: "PingFang TC","Noto Sans TC","Microsoft JhengHei",sans-serif;
  --hand: "LXGW WenKai","BiauKai","DFKai-SB",serif;
}
html[lang="en"] blockquote.pull { font-style: italic; }
html[lang="en"] .mono { letter-spacing: .14em; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--body); font-size: 17px; line-height: 1.95;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
a { color: inherit; }
img, video { display: block; max-width: 100%; }
.shell { width: min(680px, calc(100% - 48px)); margin-inline: auto; }
.shell-wide { width: min(1080px, calc(100% - 48px)); margin-inline: auto; }
.mono { font-family: var(--mono); letter-spacing: .12em; text-transform: uppercase; }

/* header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px); position: sticky; top: 0; z-index: 20;
}
.site-header .bar { height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.wordmark { font-family: Georgia,"Songti SC",serif; font-weight: 700; letter-spacing: .2em; font-size: 15px; text-decoration: none; }
.header-links { display: flex; align-items: center; gap: 22px; }
.header-links a { font-size: 12.5px; text-decoration: none; color: var(--ink-2); }
.header-links a:hover { color: var(--ink); }
.header-links .language { padding-left: 20px; border-left: 1px solid var(--line); color: var(--signal); font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; }
.header-links .language + .language { padding-left: 0; border-left: 0; }

/* title block */
main { padding-bottom: 30px; }
.crumb { padding: 34px 0 0; font-size: 12px; color: var(--muted); letter-spacing: .08em; }
.crumb a { text-decoration: none; }
.eyebrow { margin: 56px 0 26px; font-size: 12.5px; color: var(--signal); letter-spacing: .1em; }
h1.title { margin: 0; font-family: var(--disp); font-weight: 600; letter-spacing: -.01em; font-size: clamp(30px, 4.7vw, 44px); line-height: 1.2; }
h1.title br.brk { display: none; }
p.dek { margin: 28px 0 0; font-size: 20px; line-height: 1.7; color: var(--ink-2); }
.meta {
  margin: 40px 0 0; padding: 20px 0; display: flex; flex-wrap: wrap; gap: 10px 34px;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  font-size: 12.5px; color: var(--muted); font-variant-numeric: tabular-nums; letter-spacing: .04em;
}
.meta b { color: var(--ink); font-weight: 600; }

/* hero + inline figures */
figure.hero { margin: 48px 0 0; border-radius: 4px; overflow: hidden; }
figure.fig { margin: 44px 0; }
figure.fig img { border-radius: 4px; }
figure figcaption { margin-top: 12px; font-size: 12.5px; color: var(--muted); line-height: 1.6; }

/* article */
article { margin-top: 8px; }
article > section { padding: 60px 0 0; }
article > section:first-child { padding-top: 52px; }
article p { margin: 0 0 28px; color: var(--ink); }
article p.lede { font-size: 19px; line-height: 1.85; }
article p strong { font-weight: 600; }
article .mark { font-weight: 600; background: linear-gradient(var(--mark),var(--mark)) 0 82% / 100% .52em no-repeat; padding: 0 .04em; }

.sec-head { margin: 0 0 30px; }
.sec-head .kicker { display: block; margin-bottom: 18px; font-size: 12.5px; color: var(--muted); letter-spacing: .1em; }
.sec-head .kicker em { font-style: normal; color: var(--signal); }
h2.h { margin: 0; font-family: var(--disp); font-weight: 600; font-size: clamp(25px, 3.4vw, 31px); line-height: 1.32; letter-spacing: -.01em; }
h3.h { margin: 36px 0 12px; font-weight: 600; font-size: 18px; color: var(--ink); }

.answer { margin: 0 0 8px; padding: 34px 36px; background: var(--forest); color: #EDEADD; border-radius: 6px; }
.answer .tag { display: block; margin-bottom: 14px; font-size: 13px; letter-spacing: .1em; color: #8FBBAD; }
.answer p { margin: 0; color: #EDEADD; font-size: 18px; line-height: 1.78; }

.keyline { margin: 40px 0; padding: 26px 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.keyline .tag { display: block; margin-bottom: 12px; font-size: 13px; letter-spacing: .1em; color: var(--muted); }
.keyline p { margin: 0; font-weight: 600; font-size: 21px; line-height: 1.55; letter-spacing: -.01em; }

/* stat row (for the mistake page numbers) */
.stats { margin: 4px 0 12px; display: grid; grid-template-columns: repeat(auto-fit,minmax(150px,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.stats .cell { padding: 20px 18px; background: var(--surface); }
.stats .cell .n { font-family: var(--mono); font-size: 20px; font-variant-numeric: tabular-nums; color: var(--ink); }
.stats .cell .l { margin-top: 6px; font-size: 12.5px; color: var(--muted); line-height: 1.5; }

/* ledger */
.ledger-wrap { overflow-x: auto; margin: 4px 0 20px; }
table.ledger { width: 100%; border-collapse: collapse; font-size: 15px; }
table.ledger caption { text-align: left; margin-bottom: 16px; font-size: 12px; color: var(--muted); letter-spacing: .06em; }
table.ledger th, table.ledger td { text-align: left; padding: 15px 8px; border-bottom: 1px solid var(--line); }
table.ledger th { font-family: var(--mono); font-size: 12px; color: var(--muted); font-weight: 600; letter-spacing: .04em; }
table.ledger td.amount { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; white-space: nowrap; }
table.ledger tfoot td { border-bottom: 0; border-top: 1.5px solid var(--ink); font-weight: 700; padding-top: 16px; }
.calculation-note { margin: 18px 0 0; padding: 16px 18px; border-left: 3px solid var(--signal); background: var(--surface); color: var(--ink-2); font-size: 13.5px; line-height: 1.75; }

/* pull quote */
blockquote.pull { margin: 52px 0; padding: 0; text-align: left; font-family: var(--hand); font-size: clamp(26px, 4vw, 34px); line-height: 1.5; letter-spacing: .01em; color: var(--ink); font-weight: 400; }
blockquote.pull::before { content: ""; display: block; width: 40px; height: 1px; background: var(--ink); margin-bottom: 28px; }

/* lessons */
ol.lessons { margin: 4px 0 8px; padding: 0; list-style: none; counter-reset: l; }
ol.lessons li { position: relative; padding: 26px 0; border-top: 1px solid var(--line); }
ol.lessons li:last-child { border-bottom: 1px solid var(--line); }
ol.lessons li .n { display: block; margin-bottom: 10px; font-family: var(--mono); font-size: 11px; letter-spacing: .1em; color: var(--muted); }
ol.lessons li strong { display: block; margin-bottom: 6px; font-weight: 600; }
ol.lessons li span { color: var(--ink-2); }

/* timeline (creator bio) */
.tl { margin: 8px 0 12px; }
.tl .row { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 16px 0; border-top: 1px solid var(--line); }
.tl .row:last-child { border-bottom: 1px solid var(--line); }
.tl .row b { font-family: var(--mono); font-size: 13px; color: var(--signal); font-weight: 600; letter-spacing: .04em; }
.tl .row span { color: var(--ink-2); }

/* cta + footer */
.cta { margin: 64px 0 0; padding-top: 40px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 14px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 52px; padding: 15px 24px; border-radius: 2px; font-size: 13.5px; font-weight: 600; line-height: 1.35; text-align: center; text-decoration: none; }
.cta .btn { flex: 1 1 210px; }
.btn.primary { background: var(--ink); color: var(--paper); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }
.follow-card { margin: 64px 0 0; padding: 32px 0 0; border-top: 1px solid var(--line); }
.follow-card h2 { display:flex;align-items:center;gap:13px;margin:0;font-family:var(--disp);font-size:clamp(21px,2.8vw,26px);line-height:1.35; }
.follow-card h2::before { content:"";width:42px;height:42px;flex:0 0 42px;border-radius:50%;background:url("laoliu-avatar.jpg") center/cover;border:1px solid var(--line); }
.follow-card p { margin: 13px 0 24px; color: var(--ink-2); font-size: 14.5px; line-height: 1.75; }
.follow-links { display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line); }
.follow-links a,.follow-links .follow-item { display:grid;grid-template-columns:34px minmax(0,1fr);gap:10px;align-items:center;min-height:70px;padding:12px 14px;color:var(--ink);text-decoration:none; }
.follow-links > * + * { border-left:1px solid var(--line); }
.platform-icon { width:32px;height:32px;display:block;object-fit:contain;padding:7px;border-radius:9px;background:var(--surface);border:1px solid var(--line); }
.platform-copy { min-width:0; }
.platform-copy strong,.platform-copy small { display:block; }
.platform-copy strong { font-size:13.5px;line-height:1.35;font-weight:600; }
.platform-copy small { margin-top:3px;color:var(--muted);font-size:10.5px;line-height:1.4;white-space:normal; }
.follow-links a:hover .platform-copy strong { color:var(--signal); }
@media(max-width:620px){.follow-links{grid-template-columns:1fr;}.follow-links > * + *{border-left:0;border-top:1px solid var(--line);}}
.article-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:48px 0 30px;}
.article-nav a{display:flex;min-height:76px;align-items:center;justify-content:center;padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);text-align:center;text-decoration:none;font-weight:600;line-height:1.45;}
.article-nav a:hover{border-color:var(--signal);color:var(--signal);}
@media(max-width:620px){.article-nav{grid-template-columns:1fr;}.article-nav a{min-height:58px;}}
.wechat-note { margin: 38px 0 0; padding: 24px 26px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); }
.wechat-note h2 { margin: 0 0 10px; font-size: 21px; font-weight: 600; }
.wechat-note p { margin: 6px 0; color: var(--ink-2); font-size: 14px; line-height: 1.75; }
.wechat-id { font-family: var(--mono); color: var(--signal); letter-spacing: .06em; }
.player-embed { margin: 60px 0 0; padding-top: 44px; border-top: 1px solid var(--line); }
.player-embed.player-embed-top { margin-top: 40px; padding-top: 0; border-top: 0; }
.player-embed h2 { margin: 0 0 20px; font-family: var(--disp); font-weight: 600; font-size: 22px; letter-spacing: -.005em; }
.player-embed video { width: 100%; border-radius: 6px; background: #0e1512; aspect-ratio: 16 / 9; }
.video-shell video[hidden], .video-shell .video-placeholder[hidden] { display: none; }
.video-placeholder { position: relative; overflow: hidden; width: 100%; border-radius: 6px; background: #0e1512; aspect-ratio: 16 / 9; }
.video-placeholder img { width: 100%; height: 100%; object-fit: cover; opacity: .74; }
.video-placeholder span { position: absolute; left: 20px; bottom: 18px; padding: 8px 12px; border: 1px solid rgba(255,255,255,.45); border-radius: 999px; background: rgba(14,21,18,.76); color: #fff; font-family: var(--mono); font-size: 11px; letter-spacing: .08em; backdrop-filter: blur(10px); }
.site-footer { margin-top: 90px; padding: 44px 0; border-top: 1px solid var(--line); }
.site-footer .row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; align-items: center; }
.site-footer .row span, .site-footer .row a { font-family: var(--mono); font-size: 10.5px; color: var(--muted); text-decoration: none; letter-spacing: .1em; text-transform: uppercase; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer nav a:hover { color: var(--ink); }

/* archive listing */
.archive-hero { padding: 64px 0 10px; }
.archive-hero h1 { margin: 22px 0 0; width:100%; max-width:none; font-family: var(--disp); font-weight: 600; font-size: clamp(30px,3.8vw,42px); line-height: 1.22; letter-spacing: -.01em; text-wrap:pretty; }
.archive-hero .dek { width:100%; max-width:none; }
.archive-grid { padding: 48px 0 40px; display: grid; grid-template-columns: repeat(3,1fr); gap: 30px; }
.video-card { display: flex; flex-direction: column; text-decoration: none; }
.video-card .thumb { border-radius: 4px; overflow: hidden; aspect-ratio: 16/9; }
.video-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.video-card:hover .thumb img { transform: scale(1.03); }
.video-card time { margin: 18px 0 10px; font-family: var(--mono); font-size: 11px; letter-spacing: .08em; color: var(--signal); }
.video-card h2 { margin: 0 0 10px; font-family: var(--disp); font-size: 22px; font-weight: 600; line-height: 1.3; letter-spacing: -.005em; }
.video-card p { margin: 0; font-size: 14px; color: var(--ink-2); line-height: 1.7; }

@media (max-width: 820px) {
  .archive-grid { grid-template-columns: 1fr; gap: 40px; }
  .header-links a:not(.language) { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  h1.title { font-size: 32px; }
  h1.title br.brk { display: initial; }
  .answer { padding: 26px 24px; }
  .tl .row { grid-template-columns: 1fr; gap: 4px; }
  .player-embed.player-embed-top { margin-top: 32px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .video-card:hover .thumb img { transform: none; }
}