/* Fifty Stalks · 五十策 (v34) — I Ching. Original design. */
@font-face{font-family:"LXGW WenKai TC";src:url("fonts/LXGWWenKaiTC-subset.woff2") format("woff2");font-display:swap}

:root{
  --bg:#F2EDE3;--surface:#FAF7F1;--surface-2:#EDE6D9;--ink:#1E1C19;--ink-2:#55504A;--ink-3:#8A8277;
  --line:#D9D0C0;--line-2:#E6DFD2;--accent:#B23A2B;--accent-ink:#FFF8F2;--jade:#4F7466;--gold:#9C7A45;
  --wood-board:#EFE6D4;--shadow:0 1px 0 rgba(30,28,25,.04),0 10px 30px -18px rgba(30,28,25,.35);
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Songti TC","Noto Serif TC","Source Han Serif TC","Hiragino Mincho ProN","Yu Mincho","Noto Serif CJK TC",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue","PingFang TC","Hiragino Sans","Noto Sans TC","Noto Sans CJK TC",system-ui,sans-serif;
  --kai:"LXGW WenKai TC","Kaiti TC","STKaiti","BiauKai",var(--serif);
  --radius:14px;--max:1180px;--read:680px;--fs:17px;
  color-scheme:light;
}
:root[data-theme="ink"]{
  --bg:#121211;--surface:#1A1917;--surface-2:#23211E;--ink:#ECE5D8;--ink-2:#B5AC9D;--ink-3:#80786C;
  --line:#33302B;--line-2:#2A2824;--accent:#D45A43;--accent-ink:#1A1513;--jade:#86A898;--gold:#C7A56C;
  --wood-board:#E9DFCB;--shadow:0 1px 0 rgba(0,0,0,.3),0 14px 40px -20px rgba(0,0,0,.8);color-scheme:dark;
}
:root[data-theme="indigo"]{
  --bg:#131A28;--surface:#192236;--surface-2:#202B42;--ink:#EAE5DA;--ink-2:#B3B4BC;--ink-3:#7F8598;
  --line:#2D3852;--line-2:#253049;--accent:#D9774F;--accent-ink:#1A1410;--jade:#8FB3A4;--gold:#D2B272;
  --wood-board:#E9DFCB;--shadow:0 1px 0 rgba(0,0,0,.3),0 14px 40px -20px rgba(0,0,0,.8);color-scheme:dark;
}
@media (prefers-color-scheme:dark){:root:not([data-theme]){
  --bg:#121211;--surface:#1A1917;--surface-2:#23211E;--ink:#ECE5D8;--ink-2:#B5AC9D;--ink-3:#80786C;
  --line:#33302B;--line-2:#2A2824;--accent:#D45A43;--accent-ink:#1A1513;--jade:#86A898;--gold:#C7A56C;color-scheme:dark}}
:root[data-size="large"]{--fs:19px}:root[data-size="extra"]{--fs:21px}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:clip}
body{margin:0;background:var(--bg);color:var(--ink);font:400 var(--fs)/1.7 var(--sans);-webkit-font-smoothing:antialiased;min-height:100vh;overflow-x:hidden;overflow-x:clip}
:lang(ja) body,:root:lang(ja){--serif:"Hiragino Mincho ProN","Yu Mincho","Iowan Old Style","Noto Serif JP","Songti TC",serif;--sans:-apple-system,"Hiragino Sans","Yu Gothic","Noto Sans JP",system-ui,sans-serif}
:root:lang(zh-Hans){--serif:"Iowan Old Style","Songti SC","Noto Serif SC","Source Han Serif SC",serif;--sans:-apple-system,"PingFang SC","Noto Sans SC",system-ui,sans-serif}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
img{max-width:100%;display:block}
::selection{background:color-mix(in srgb,var(--accent) 22%,transparent)}

/* paper grain */
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.35;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .45 0 0 0 0 .38 0 0 0 0 .3 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E")}
:root[data-theme="ink"] body::before,:root[data-theme="indigo"] body::before{mix-blend-mode:screen;opacity:.18}
@media (prefers-color-scheme:dark){:root:not([data-theme]) body::before{mix-blend-mode:screen;opacity:.18}}
#app{position:relative;z-index:1}

/* ---------- header ---------- */
.top{position:sticky;top:0;z-index:30;backdrop-filter:saturate(1.2) blur(14px);-webkit-backdrop-filter:saturate(1.2) blur(14px);
  background:color-mix(in srgb,var(--bg) 82%,transparent);border-bottom:1px solid var(--line-2)}
.top-inner{max-width:var(--max);margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}
.seal{width:34px;height:34px;border-radius:5px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;
  font:600 20px/1 var(--serif);box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--accent-ink) 35%,transparent);transform:rotate(-2deg)}
.brand-words{display:flex;flex-direction:column;line-height:1.1}
.brand-words b{font:600 19px/1.1 var(--serif);letter-spacing:.02em}
.brand-words small{font-size:10.5px;letter-spacing:.24em;color:var(--ink-3);text-transform:uppercase;margin-top:3px}
.nav{display:flex;gap:4px}
.nav a{text-decoration:none;padding:8px 14px;border-radius:999px;color:var(--ink-2);font-size:15px;letter-spacing:.02em;white-space:nowrap}
.nav a:hover{color:var(--ink);background:var(--surface-2)}
.nav a[aria-current="page"]{color:var(--ink);background:var(--surface);box-shadow:inset 0 0 0 1px var(--line)}
.tools{display:flex;align-items:center;gap:6px}
.iconbtn{border:1px solid transparent;background:none;border-radius:999px;height:36px;min-width:36px;padding:0 10px;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;gap:6px;font-size:14px}
.iconbtn:hover{background:var(--surface-2);color:var(--ink)}
.iconbtn svg{width:18px;height:18px}
.tabbar{display:none}
@media (max-width:820px){
  .nav{display:none}
  .top-inner{padding:10px 16px}
  .tabbar{display:grid;grid-template-columns:repeat(3,1fr);position:fixed;bottom:0;left:0;right:0;z-index:40;
    background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-top:1px solid var(--line);padding:6px 6px calc(6px + env(safe-area-inset-bottom))}
  .tabbar a{display:flex;flex-direction:column;align-items:center;gap:2px;text-decoration:none;font-size:11.5px;color:var(--ink-3);padding:4px 0}
  .tabbar a svg{width:24px;height:24px}
  .tabbar a[aria-current="page"]{color:var(--accent)}
  main{padding-bottom:84px}
}

/* ---------- layout ---------- */
main{max-width:var(--max);margin:0 auto;padding:28px 20px 80px}
.read{max-width:var(--read);margin-inline:auto}
.eyebrow{font:500 11.5px/1.4 var(--sans);letter-spacing:.22em;text-transform:uppercase;color:var(--ink-3)}
:lang(zh-Hant) .eyebrow,:lang(zh-Hans) .eyebrow,:lang(ja) .eyebrow{letter-spacing:.18em}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;letter-spacing:.01em;margin:0}
h1{font-size:clamp(34px,5.4vw,60px);line-height:1.12}
h2{font-size:clamp(25px,3.2vw,34px);line-height:1.25}
h3{font-size:21px;line-height:1.35}
p{margin:0 0 1em}
.muted{color:var(--ink-2)}.faint{color:var(--ink-3)}
.rule{height:1px;background:var(--line);border:0;margin:32px 0}
.card{background:var(--surface);border:1px solid var(--line-2);border-radius:var(--radius);box-shadow:var(--shadow)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:999px;padding:13px 24px;border:1px solid var(--ink);
  background:var(--ink);color:var(--bg);font-weight:500;font-size:16px;letter-spacing:.02em;text-decoration:none;transition:transform .15s,background .2s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--ink-3)}
.btn.accent{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.small{padding:8px 16px;font-size:14px}
.btn[disabled]{opacity:.45;pointer-events:none}
.link{background:none;border:0;padding:0;color:var(--ink-2);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--line);font-size:15px}
.link:hover{color:var(--ink);text-decoration-color:var(--ink-3)}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:999px;padding:3px 11px;font-size:13px;color:var(--ink-2);background:var(--surface)}
.chip.accent{border-color:color-mix(in srgb,var(--accent) 40%,var(--line));color:var(--accent)}
.chip.jade{border-color:color-mix(in srgb,var(--jade) 45%,var(--line));color:var(--jade)}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.stack>*+*{margin-top:16px}
.fade-in{animation:fade .5s ease both}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* ---------- classical text ---------- */
.classic{font-family:var(--serif);font-size:1.32em;line-height:1.9;letter-spacing:.06em;color:var(--ink)}
.classic.small{font-size:1.08em}
.classic .lbl{color:var(--accent);margin-right:.4em}
.vertical{writing-mode:vertical-rl;text-orientation:upright;letter-spacing:.18em}
.quote-block{border-left:2px solid var(--accent);padding:4px 0 4px 18px;margin:0 0 14px}
.handwritten{font-family:var(--kai)}

/* ---------- home ---------- */
.home-hero{display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;padding:36px 0 44px}
.home-hero h1 em{font-style:normal;color:var(--accent)}
.home-hero p.lede{font-size:1.12em;color:var(--ink-2);max-width:34em;margin-top:18px}
.hero-actions{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
.hero-art{position:relative;aspect-ratio:3/4;border-radius:18px;overflow:hidden;background:var(--surface-2)}
.hero-art svg{position:absolute;inset:0;width:100%;height:100%}
.home-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tile{padding:24px;text-decoration:none;display:flex;flex-direction:column;gap:10px;min-height:210px;transition:transform .2s,border-color .2s}
.tile:hover{transform:translateY(-2px);border-color:var(--line)}
.tile h3{font-size:22px}
.tile .more{margin-top:auto;font-size:14px;color:var(--accent)}
.today{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:center}
@media (max-width:820px){.home-hero{grid-template-columns:1fr;padding-top:12px;gap:24px}.hero-art{aspect-ratio:16/10}.home-grid{grid-template-columns:1fr}}

/* ---------- hexagram figure ---------- */
.hexfig{display:block}
.hexfig .bar{fill:var(--ink)}
.hexfig .mark{fill:none;stroke:var(--accent);stroke-width:2.2}
.hexfig.light .bar{fill:var(--ink-3)}

/* ---------- cast: steps ---------- */
.steps{display:flex;gap:6px;align-items:center;margin-bottom:26px;flex-wrap:wrap}
.steps span{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px}
.steps span b{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);font-weight:500;font-size:12px}
.steps span.on{color:var(--ink)}
.steps span.on b{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.steps span.done b{background:var(--surface-2)}
.steps i{width:22px;height:1px;background:var(--line)}
.prep{display:grid;grid-template-columns:1.1fr .9fr;gap:36px}
.three-no{display:grid;gap:12px;margin:18px 0 0;padding:0;list-style:none}
.three-no li{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:baseline}
.three-no b{font:500 20px var(--serif);color:var(--accent)}
textarea.q{width:100%;min-height:120px;resize:vertical;border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:14px 16px;line-height:1.6}
textarea.q:focus{outline:none;border-color:var(--ink-3)}
.methods{display:grid;gap:12px;margin-top:8px}
.method{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;padding:18px;border-radius:14px;border:1px solid var(--line);background:var(--surface);text-align:left;cursor:pointer}
.method input{margin-top:6px;accent-color:var(--accent)}
.method:has(input:checked){border-color:var(--ink);box-shadow:0 0 0 1px var(--ink)}
.method b{font:500 18px var(--serif)}
.method small{grid-column:2;color:var(--ink-2);font-size:14px}
.note{font-size:14px;color:var(--ink-2);background:var(--surface-2);border-radius:12px;padding:12px 14px}
@media (max-width:820px){.prep{grid-template-columns:1fr}}

/* invocation */
.invocation{display:grid;place-items:center;text-align:center;padding:30px 0}
.invocation>*{max-width:100%;min-width:0}
.invocation{overflow-x:clip}
/* The columns always fit the screen: font size is capped so (columns × line height) fits the width. */
/* Prayer: right-to-left row of columns, each a stack of characters, centred; always fits the width. */
.invocation .vcols{display:flex;flex-direction:row-reverse;justify-content:center;align-items:center;width:100%;margin:18px 0;color:var(--ink);
  font:400 min(clamp(22px,3vw,30px),calc((100vw - 48px) / (var(--cols,8) * 2)))/1.18 var(--serif)}
.invocation .vcols .ph{display:flex;flex-direction:column;align-items:center;width:1.9em;flex:none;padding:.08em 0;border-radius:6px;transition:color .4s,background-color .4s}
.invocation .vcols i{font-style:normal;display:block;height:1.18em;text-align:center}
/* the column (and, in Japanese, the 書き下し phrase) being read aloud */
.invocation .vcols .ph.speaking{color:var(--accent);background:color-mix(in srgb,var(--accent) 13%,transparent)}
.invocation .kk{border-radius:4px;transition:color .4s,background-color .4s}
.invocation .kk.speaking{color:var(--accent);background:color-mix(in srgb,var(--accent) 13%,transparent)}
.voice-row{margin:6px 0 4px}
.voice-lang button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.voice-row .btn[disabled]{opacity:.4;cursor:not-allowed}
.invocation .breath{width:10px;height:10px;border-radius:50%;background:var(--accent);margin:14px auto;animation:breath 5.5s ease-in-out infinite}
@keyframes breath{0%,100%{transform:scale(.6);opacity:.4}50%{transform:scale(1.6);opacity:1}}

/* ---------- casting table ---------- */
.castwrap{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:22px;align-items:start}
.table{position:relative;border-radius:18px;overflow:hidden;background:var(--wood-board);box-shadow:inset 0 0 0 1px rgba(80,56,30,.12),var(--shadow);
  aspect-ratio:16/11;touch-action:pan-y;user-select:none;-webkit-user-select:none}
.table::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 40%,transparent 55%,rgba(70,48,24,.16)),
  url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.012 .6' numOctaves='3' seed='4'/%3E%3CfeColorMatrix values='0 0 0 0 .42 0 0 0 0 .3 0 0 0 0 .18 0 0 0 .06 0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E")}
.table canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.table .zone{position:absolute;font:400 11.5px/1.3 var(--sans);letter-spacing:.14em;color:rgba(70,52,30,.55);pointer-events:none;text-transform:uppercase}
.table .seam{position:absolute;top:22%;bottom:8%;width:2px;background:linear-gradient(transparent,var(--accent),transparent);opacity:0;transition:opacity .2s;pointer-events:none}
.table.splitting .seam{opacity:.9}
.table .hint{position:absolute;left:0;right:0;bottom:14px;text-align:center;font-size:14px;color:rgba(60,44,26,.75);pointer-events:none;transition:opacity .3s}
.table .tally{position:absolute;font:500 13px var(--sans);color:rgba(60,44,26,.85);background:rgba(255,250,240,.72);border-radius:999px;padding:2px 9px;pointer-events:none;transform:translate(-50%,0);white-space:nowrap;transition:opacity .25s}
.castbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px}
.castbar .status{margin-right:auto;font-size:15px;color:var(--ink-2)}
.castbar .status b{color:var(--ink);font-weight:500}
.speed{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px}
.speed button{border:0;background:none;border-radius:999px;padding:5px 12px;font-size:13px;color:var(--ink-2)}
.speed button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}

/* the paper (稿紙) */
.paper{background:#FBF8F0;color:#2A2622;border-radius:6px;padding:22px 20px 18px;position:relative;
  box-shadow:0 1px 1px rgba(0,0,0,.06),0 18px 30px -22px rgba(40,30,20,.6);transform:rotate(.6deg);
  }
.paper h4{font:500 13px var(--sans);letter-spacing:.2em;color:#8a7f72;text-transform:uppercase;margin-bottom:10px}
.paper .slots{display:flex;flex-direction:column-reverse}
.paper .slot{height:44px;border-bottom:1px solid rgba(178,58,43,.16);display:grid;grid-template-columns:30px 1fr 54px;align-items:center;gap:10px;font-family:var(--kai)}
.paper .slot .pos{font-size:13px;color:#a2968a}
.paper .slot .n{font-size:30px;line-height:1;color:#1f1b17;clip-path:inset(0 100% 0 0);transition:clip-path .9s cubic-bezier(.6,.05,.3,1)}
.paper .slot.written .n{clip-path:inset(0 0 0 0)}
.paper .slot .calc{font-size:12.5px;color:#8b8075;letter-spacing:.02em}
.paper .slot svg{width:54px;height:12px}
.paper .slot.current{background:linear-gradient(90deg,rgba(178,58,43,.07),transparent)}
.paper .foot{margin-top:12px;font-size:12.5px;color:#8b8075;font-family:var(--sans);line-height:1.5}
.paper .rounds{font-family:var(--kai);font-size:16px;color:#5b5148;min-height:24px}
@media (max-width:900px){.castwrap{grid-template-columns:1fr}.table{aspect-ratio:4/5}.paper{transform:none}}

/* ---------- reading ---------- */
.reading-head{display:grid;grid-template-columns:auto 1fr;gap:34px;align-items:center;padding:12px 0 30px}
.pair{display:flex;align-items:center;gap:22px}
.pair .arrow{color:var(--ink-3);font-size:22px}
.figure-name{text-align:center}
.figure-name .nm{font:500 26px/1.2 var(--serif);margin-top:10px}
.figure-name .sub{font-size:13px;color:var(--ink-3)}
.rule-box{border:1px dashed var(--line);border-radius:12px;padding:14px 16px;font-size:15px;color:var(--ink-2)}
.rule-box b{color:var(--ink);font-weight:500}
.key-passage{padding:30px;border-radius:18px;background:var(--surface);border:1px solid var(--line-2);box-shadow:var(--shadow);margin:24px 0}
.key-passage .classic{font-size:1.6em}
.section{padding:34px 0;border-top:1px solid var(--line)}
.section>h2{margin-bottom:6px}
.section>.eyebrow{display:block;margin-bottom:8px}
.twocol{display:grid;grid-template-columns:1fr 1fr;gap:22px}
@media (max-width:820px){.reading-head{grid-template-columns:1fr;gap:18px}.twocol{grid-template-columns:1fr}.key-passage{padding:20px}}
.question-echo{font-style:italic;color:var(--ink-2);border-left:2px solid var(--line);padding-left:14px}
.safety{font-size:13.5px;color:var(--ink-3);margin-top:30px}

/* ---------- gua page ---------- */
.gua-hero{display:grid;grid-template-columns:auto 1fr auto;gap:40px;align-items:center;padding:20px 0 34px;border-bottom:1px solid var(--line)}
.gua-num{font:400 13px var(--sans);letter-spacing:.2em;color:var(--ink-3)}
.gua-title{display:flex;align-items:baseline;gap:18px;flex-wrap:wrap;margin:6px 0 10px}
.gua-title .big{font:500 clamp(54px,8vw,92px)/1 var(--serif)}
.gua-title .full{font:400 22px var(--serif);color:var(--ink-2)}
.gua-theme{font:400 1.25em/1.5 var(--serif);color:var(--ink)}
.gua-seal{writing-mode:vertical-rl;font:500 15px var(--serif);letter-spacing:.3em;color:var(--accent);border:1.5px solid var(--accent);padding:12px 6px;border-radius:4px}
.gua-body{display:grid;grid-template-columns:200px minmax(0,1fr);gap:48px;margin-top:30px}
.toc{position:sticky;top:90px;align-self:start;display:flex;flex-direction:column;gap:2px;font-size:14px}
.toc a{text-decoration:none;color:var(--ink-3);padding:5px 10px;border-left:1px solid var(--line)}
.toc a:hover,.toc a.on{color:var(--ink);border-left-color:var(--accent)}
.gsec{padding:6px 0 34px;scroll-margin-top:90px}
.gsec>h3{display:flex;align-items:baseline;gap:12px;margin-bottom:14px}
.gsec>h3 small{font:400 12px var(--sans);letter-spacing:.2em;color:var(--ink-3);text-transform:uppercase}
.trigram-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:16px}
.tri{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:16/10;background:var(--surface-2)}
.tri img{width:100%;height:100%;object-fit:cover;filter:saturate(.55) contrast(1.02)}
.tri .cap{position:absolute;left:0;right:0;bottom:0;padding:24px 14px 10px;background:linear-gradient(transparent,rgba(0,0,0,.6));color:#fff;display:flex;align-items:baseline;gap:10px}
.tri .cap b{font:500 26px var(--serif)}
.tri .cap span{font-size:13px;opacity:.85}
.seqbridge{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:center;margin-bottom:14px}
.seqbridge a{text-decoration:none;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font-size:14px;color:var(--ink-2)}
.seqbridge a b{display:block;font:500 18px var(--serif);color:var(--ink)}
.seqbridge .here{font:500 24px var(--serif);color:var(--accent)}
.lines{display:flex;flex-direction:column-reverse;gap:12px}
.yao{border:1px solid var(--line-2);border-radius:14px;background:var(--surface);overflow:hidden}
.yao.hl{border-color:color-mix(in srgb,var(--accent) 55%,var(--line));box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 35%,transparent)}
.yao summary{list-style:none;display:grid;grid-template-columns:52px 1fr auto;gap:14px;align-items:center;padding:16px 18px;cursor:pointer}
.yao summary::-webkit-details-marker{display:none}
.yao summary .lab{font:500 15px var(--serif);color:var(--accent)}
.yao summary .txt{font:400 1.08em/1.6 var(--serif)}
.yao summary .txt .tr,.tr-block .tr{display:block;margin-top:6px;font:400 .86em/1.6 var(--serif);color:var(--ink-2)}
.tr-block{margin:4px 0 12px}
.tr-block .tr{font-size:1em}
.backup-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:10px 0 14px}
.variant{font-size:13.5px;color:var(--ink-3);margin:8px 0 4px}
.variant>span:first-child{color:var(--gold);margin-right:6px}
.tr-credit{margin-top:14px;font-size:12.5px;color:var(--ink-3)}
.yao summary .tw{color:var(--ink-3);transition:transform .2s}
.yao[open] summary .tw{transform:rotate(180deg)}
.yao .yb{padding:0 18px 18px 84px}
.yao .tags{display:flex;gap:6px;flex-wrap:wrap;margin:2px 0 12px}
.yao .xiao{font:400 15px var(--serif);color:var(--ink-2);margin-bottom:12px}
.yao h5{margin:14px 0 4px;font:500 12px var(--sans);letter-spacing:.18em;color:var(--ink-3);text-transform:uppercase}
.story{background:var(--surface-2);border-radius:12px;padding:16px 18px;margin-top:12px}
.story h4{font:500 17px var(--serif);margin-bottom:6px}
.story .src{font-size:12.5px;color:var(--ink-3)}
.stories{display:grid;gap:16px}
.stories .story{background:var(--surface);border:1px solid var(--line-2);padding:22px 24px}
.stories .story h4{font-size:21px}
.relations{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.relations a{text-decoration:none;border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;gap:12px;align-items:center}
.relations small{display:block;color:var(--ink-3);font-size:12px}
.relations b{font:500 17px var(--serif)}
.gnav{display:flex;justify-content:space-between;gap:12px;margin-top:30px}
@media (max-width:900px){.gua-hero{grid-template-columns:auto 1fr;gap:22px}.gua-seal{display:none}.gua-body{grid-template-columns:1fr;gap:0}.toc{display:none}.yao .yb{padding:0 16px 16px}.relations{grid-template-columns:1fr 1fr}}

/* ---------- library ---------- */
.libbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:18px 0 22px}
.search{flex:1;min-width:200px;border:1px solid var(--line);border-radius:999px;background:var(--surface);padding:10px 16px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:var(--surface)}
.seg button{border:0;background:none;border-radius:999px;padding:6px 14px;font-size:14px;color:var(--ink-2)}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.libgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.gcard{text-decoration:none;padding:16px 14px 14px;border-radius:14px;background:var(--surface);border:1px solid var(--line-2);display:flex;flex-direction:column;gap:8px;transition:transform .15s,border-color .15s}
.gcard:hover{transform:translateY(-2px);border-color:var(--line)}
.gcard .top2{display:flex;justify-content:space-between;align-items:flex-start}
.gcard .no{font-size:12px;color:var(--ink-3);letter-spacing:.1em}
.gcard .nm{font:500 24px/1.1 var(--serif)}
.gcard .th{font-size:13px;color:var(--ink-2);line-height:1.45}
.parthead{grid-column:1/-1;margin:16px 0 2px;display:flex;align-items:baseline;gap:12px}
.parthead h3{font-size:19px}
.matrix{overflow:auto}
.matrix table{border-collapse:separate;border-spacing:6px;margin:auto}
.matrix th{font:500 14px var(--serif);color:var(--ink-2);padding:4px}
.matrix td a{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 8px;border-radius:10px;background:var(--surface);border:1px solid var(--line-2);text-decoration:none;min-width:74px;font:500 15px var(--serif)}
.matrix td a small{font:400 11px var(--sans);color:var(--ink-3)}
.ring{display:grid;place-items:center}

/* ---------- study ---------- */
.lessons{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;margin-top:20px}
.lesson-card{text-decoration:none;padding:22px;border-radius:16px;background:var(--surface);border:1px solid var(--line-2);display:flex;flex-direction:column;gap:8px;min-height:170px}
.lesson-card .n{font:400 34px/1 var(--serif);color:var(--accent);opacity:.85}
.lesson-card h3{font-size:20px}
.lesson-card p{font-size:14.5px;color:var(--ink-2);margin:0}
.lesson h1{font-size:clamp(32px,4.6vw,48px);margin:8px 0 12px}
.lesson .lede{font:400 1.2em/1.6 var(--serif);color:var(--ink-2)}
.lesson section{margin-top:30px}
.lesson section h2{font-size:24px;margin-bottom:10px}
.keypoints{background:var(--surface);border:1px solid var(--line-2);border-radius:14px;padding:18px 22px;margin-top:30px}
.keypoints li{margin:6px 0}
.lquote{margin:30px 0;text-align:center}
.lquote .classic{font-size:1.5em}
.widget{margin:24px 0;padding:22px;border-radius:16px;background:var(--surface);border:1px solid var(--line-2)}
.widget h4{font:500 13px var(--sans);letter-spacing:.18em;color:var(--ink-3);text-transform:uppercase;margin-bottom:14px}
.trigram-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.trigram-grid button{border:1px solid var(--line);background:var(--bg);border-radius:12px;padding:12px 6px;display:flex;flex-direction:column;align-items:center;gap:6px}
.trigram-grid button[aria-pressed="true"]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.trigram-grid b{font:500 20px var(--serif)}
.sim{display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:start}
.simlines{display:flex;flex-direction:column-reverse;gap:6px}
.simlines button{border:1px solid var(--line);background:var(--bg);border-radius:8px;width:150px;height:34px;display:grid;grid-template-columns:28px 1fr;align-items:center;padding:0 8px;font-family:var(--kai);font-size:18px}
@media (max-width:820px){.sim{grid-template-columns:1fr}.trigram-grid{grid-template-columns:repeat(4,1fr)}}

/* ---------- journal ---------- */
.entries{display:grid;gap:12px;margin-top:20px}
.entry{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;padding:16px 18px;border-radius:14px;background:var(--surface);border:1px solid var(--line-2)}
.entry .d{font-size:13px;color:var(--ink-3)}
.entry b{font:500 18px var(--serif)}

/* ---------- dialog / sheet ---------- */
dialog{border:0;padding:0;background:transparent;color:var(--ink);max-width:min(560px,calc(100vw - 24px));width:100%}
dialog::backdrop{background:rgba(15,12,10,.45);backdrop-filter:blur(3px)}
.sheet{background:var(--surface);border-radius:20px;padding:22px;box-shadow:0 30px 80px -30px rgba(0,0,0,.6);max-height:calc(100vh - 40px);overflow:auto}
.sheet header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.sheet h3{font-size:20px}
.share-preview{border-radius:12px;overflow:hidden;background:var(--surface-2);display:grid;place-items:center}
.share-preview canvas{width:100%;height:auto;max-height:46vh;object-fit:contain;display:block}
.share-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:14px}
.share-grid button,.share-grid a{border:1px solid var(--line);background:var(--bg);border-radius:12px;padding:10px 4px;display:flex;flex-direction:column;align-items:center;gap:6px;font-size:12.5px;text-decoration:none;color:var(--ink)}
.share-grid svg{width:22px;height:22px}
.share-hint{font-size:13.5px;color:var(--ink-2);margin-top:12px;min-height:1.4em}
.qr{display:grid;place-items:center;padding:14px;background:#fff;border-radius:12px;margin-top:12px}
.settings label{display:grid;gap:6px;margin-bottom:16px;font-size:14px;color:var(--ink-2)}
.settings select{border:1px solid var(--line);border-radius:10px;padding:10px;background:var(--bg)}
.swatches{display:flex;gap:10px}
.swatches button{flex:1;border:1px solid var(--line);border-radius:12px;padding:10px;background:var(--bg);display:flex;flex-direction:column;gap:8px;align-items:flex-start;font-size:13px}
.swatches button[aria-pressed="true"]{border-color:var(--ink);box-shadow:0 0 0 1px var(--ink)}
.swatches i{display:flex;gap:3px}
.swatches i span{width:16px;height:16px;border-radius:50%;box-shadow:inset 0 0 0 1px rgba(0,0,0,.12)}

/* ---------- AI ---------- */
.ai{border:1px solid var(--line);border-radius:18px;padding:24px;background:linear-gradient(180deg,var(--surface),var(--bg))}
.ai .consent{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);margin:12px 0}
.ai .consent input{margin-top:5px;accent-color:var(--accent)}
.ai .answer{font:400 1.02em/1.85 var(--serif);white-space:pre-wrap;margin-top:16px}
.ai .answer .h{display:block;font:500 13px var(--sans);letter-spacing:.16em;color:var(--accent);margin-top:14px}
.inkwait{display:flex;gap:8px;align-items:center;color:var(--ink-3);font-size:14px;margin-top:16px}
.inkwait i{width:7px;height:7px;border-radius:50%;background:var(--ink-3);animation:dot 1.4s infinite}
.inkwait i:nth-child(2){animation-delay:.2s}.inkwait i:nth-child(3){animation-delay:.4s}
@keyframes dot{0%,80%,100%{opacity:.2}40%{opacity:1}}

footer.foot{max-width:var(--max);margin:0 auto;padding:30px 20px 110px;font-size:13px;color:var(--ink-3);display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between;border-top:1px solid var(--line-2)}
.toast{position:fixed;left:50%;bottom:96px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:999px;font-size:14px;z-index:60;opacity:0;transition:opacity .25s;pointer-events:none}
.toast.on{opacity:1}

/* the hidden attribute must win over component display rules */
[hidden] { display: none !important; }
@media (max-width:820px){.table .hint{bottom:auto;top:8px;left:10px;right:10px;font-size:13px;padding:6px 12px;z-index:3;border-radius:12px;background:rgba(244,236,222,.92)}.table .hint:empty{display:none}}
.layer{border-left:2px solid var(--line);padding:2px 0 2px 14px;margin:12px 0}
.layer .chip{margin-bottom:4px}
.layer p{margin:6px 0 0}