/* Shared visual language from aiketi /models: paper, seal red, gold markers. */
:root{--seal:#a81f1c;--seal-deep:#7d1512;--seal-soft:#f8ede9;--gold:#a8874a;--ink:#20242b;--sub:#726b64;--paper:#faf8f4;--card:#fff;--line:#e9e2d9;--serif:"Songti SC","STSong","Noto Serif SC",serif;--sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;--shadow:0 1px 2px rgba(40,25,20,.04),0 2px 8px rgba(40,25,20,.05)}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-padding-top:20px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.8 var(--sans);-webkit-font-smoothing:antialiased}a{color:var(--seal);text-decoration:none;overflow-wrap:anywhere}a:hover{color:var(--seal-deep);text-decoration:underline}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--seal);outline-offset:4px}.wrap{max-width:980px;margin:auto;padding:0 18px}.site-head{background:var(--card);border-bottom:1px solid var(--line);padding-top:18px}.masthead{display:flex;align-items:center;justify-content:space-between;gap:18px}.brand-main{font:700 clamp(21px,4vw,27px)/1.4 var(--serif);color:var(--seal);letter-spacing:.04em}.brand-sub{display:block;font-size:12px;color:var(--sub);letter-spacing:.08em}.rule{border:0;border-top:3px solid var(--seal);margin:13px 0 3px}.rule2{border:0;border-top:1px solid var(--gold);margin:0;opacity:.75}.nav{display:flex;gap:6px;flex-wrap:wrap;padding:10px 0;font-size:14px}.nav a{padding:6px 12px;border-radius:6px;color:var(--ink)}.nav a.on{background:var(--seal-soft);color:var(--seal)}main{max-width:796px;margin:30px auto 48px;padding:0 18px}h1,h2{font-family:var(--serif);font-weight:700;line-height:1.4;position:relative;padding-left:14px;letter-spacing:.02em}h1{font-size:27px;margin:26px 0 12px}h2{font-size:23px;margin:0 0 20px}h1:before,h2:before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;background:var(--seal);border-radius:2px}h3{font-size:17px;margin:28px 0 10px;line-height:1.5}p{margin:10px 0}.note,.hint{color:var(--sub);font-size:14px}.draft-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px 24px;margin:22px 0;box-shadow:var(--shadow)}.draft-card h4{font-size:15px;color:var(--seal);margin:0 0 12px}.guide-toc{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0}.guide-toc a{display:inline-flex;gap:8px;padding:7px 13px;border:1px solid var(--line);border-radius:6px;background:var(--card);font-size:13px;color:var(--ink)}.guide-toc b{font-family:var(--serif);color:var(--gold)}.guide-toc a:hover{border-color:var(--seal);color:var(--seal)}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.btn,.primary{display:inline-block;padding:9px 18px;border-radius:8px;border:1px solid var(--line);background:var(--card);font:600 14px/1.6 var(--sans);color:var(--seal);cursor:pointer;text-align:center}.primary{background:var(--seal);color:#fff;border-color:var(--seal)}.primary:hover{background:var(--seal-deep);color:#fff;text-decoration:none}.kv-line{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin:10px 0;font-size:14px}.kv-k{color:var(--sub);min-width:75px;font-size:13px}.guide-warn{font-size:13px;color:var(--sub);border-left:3px solid var(--seal);padding-left:12px;margin-top:18px}code{font:13px/1.75 ui-monospace,Menlo,Consolas,monospace;overflow-wrap:anywhere}pre{background:var(--paper);border:1px solid var(--line);border-radius:9px;padding:14px 16px;white-space:pre-wrap;overflow-wrap:anywhere;overflow-x:auto;font:13px/1.75 ui-monospace,Menlo,Consolas,monospace;max-width:100%}.copy-button,#copy{border:1px solid var(--line);background:var(--card);color:var(--sub);border-radius:5px;padding:7px 12px;font:13px var(--sans);cursor:pointer}.copy-button{display:block;margin:8px 0 18px auto}.copy-button:hover,#copy:hover{color:var(--seal);border-color:var(--seal)}figure{margin:20px 0 30px}figure img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:8px}figcaption{font-size:12px;color:var(--sub);margin-top:7px}ul{padding-left:21px}li{margin:10px 0;font-size:14px}details{border-bottom:1px solid var(--line);padding:10px 0}summary{cursor:pointer;font-size:14px;font-weight:600}details p{font-size:14px;color:var(--sub)}footer{display:flex;gap:18px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:30px;padding:22px 0;font-size:13px}.skip{position:absolute;top:-100px;left:16px}.skip:focus{top:0;background:white;z-index:9}.toast{position:fixed;bottom:12px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;border-radius:6px;padding:4px 14px;max-width:90vw;font-size:13px}.toast:empty{display:none}#copy-status:not(.toast){font-size:13px;color:var(--sub);margin-left:8px}@media(max-width:600px){main{margin-top:22px;padding:0 14px}.masthead{align-items:flex-start}.brand-main{font-size:22px}.nav{gap:2px}.nav a{padding:6px 9px;font-size:13px}h1{font-size:24px}h2{font-size:22px}.draft-card{padding:18px 15px;border-radius:10px}.kv-line{display:block}.kv-k{display:block;margin-bottom:4px}.actions>.btn,.actions>.primary{flex:1;min-width:140px}.guide-toc a{padding:7px 10px}pre{padding:12px;font-size:12px}}@media print{.site-head,.guide-toc,.copy-button,#copy,.toast{display:none}main{max-width:none}.draft-card{box-shadow:none}figure{break-inside:avoid}}