:root{--text:var(--ink);--text-2:var(--body);--text-3:var(--muted);--text-mono:oklch(.55 .01 264);--border:var(--line);--accent:var(--blue);--accent-strong:var(--blue-strong);--accent-deep:oklch(.34 .06 262);--accent-border:oklch(.8 .08 262);--danger:oklch(.55 .16 28);--radius:4px;--radius-lg:6px;--font-mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;--band-bg:oklch(.205 .012 264);--band-surface:oklch(.235 .012 264);--band-border:oklch(.32 .012 264);--band-text-2:oklch(.72 .012 264);--band-accent:oklch(.7 .15 262)}
[data-theme=dark]{--text-mono:oklch(.58 .012 264);--accent-deep:oklch(.84 .08 262);--accent-border:oklch(.48 .13 262);--danger:oklch(.64 .14 28);--band-bg:oklch(.155 .012 264);--band-surface:oklch(.195 .012 264);--band-border:oklch(.3 .012 264)}
.ds-page{width:var(--content);margin:auto;padding-top:clamp(112px,15vw,168px)}.mono-label{font:11px/1.4 var(--font-mono);letter-spacing:.18em;text-transform:uppercase;color:var(--text-mono)}.mono-sm{font:12px/1.5 var(--font-mono)}.display{font-size:clamp(38px,6.6vw,64px);font-weight:700;line-height:1.12;letter-spacing:-.02em}.h-section{font-size:clamp(28px,4.4vw,44px);font-weight:700;line-height:1.24;letter-spacing:-.01em}.lead{font-size:clamp(16.5px,2vw,19px);line-height:1.7;color:var(--text-2)}
.ds-head{margin-bottom:clamp(40px,6vw,64px)}.ds-head .mono-label{display:block;margin-bottom:22px}.ds-head h1{margin-bottom:22px}.ds-head h1 span{color:var(--accent-strong)}.ds-head .lead{max-width:58ch}.ds-head code{font-family:var(--font-mono);font-size:.85em;background:var(--surface-2);border:1px solid var(--border-subtle);border-radius:3px;padding:.1em .4em}
.ds-section{padding:clamp(40px,6vw,72px) 0 0}.section-head{display:flex;align-items:baseline;gap:18px;margin-bottom:clamp(36px,6vw,56px);padding-bottom:20px;border-bottom:1px solid var(--border)}.section-head .num{color:var(--accent-strong);font:13px/1 var(--font-mono)}.section-head .zh{font-size:15px;font-weight:600}.section-head .en{font:11px/1 var(--font-mono);letter-spacing:.18em;text-transform:uppercase;color:var(--text-mono)}.section-head .side{margin-left:auto;color:var(--text-3);letter-spacing:.04em}.token-group{margin-bottom:36px}.group-title{display:flex;align-items:baseline;gap:12px;margin-bottom:16px}.g-zh{font-size:16px;font-weight:600}.swatches{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(215px,100%),1fr));gap:12px}.swatch{display:flex;gap:14px;align-items:flex-start;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:14px}.sw-color{flex:0 0 52px;width:52px;height:52px;border-radius:var(--radius);border:1px solid var(--border)}.sw-meta{display:flex;flex-direction:column;gap:3px;min-width:0}.sw-name{font-weight:600;color:var(--text);overflow-wrap:anywhere}.sw-vals{color:var(--text-3);font-size:10.5px}.sw-vals b{color:var(--accent-strong)}.sw-note{font-size:12px;color:var(--text-3);margin-top:3px}
.type-stacks{display:flex;gap:clamp(24px,5vw,64px);flex-wrap:wrap;margin-bottom:34px}.stack{display:flex;gap:14px;align-items:baseline;font-size:14.5px;color:var(--text-2)}.specimens{border-top:1px solid var(--border)}.specimen{display:grid;grid-template-columns:240px minmax(0,1fr);gap:clamp(16px,3vw,40px);padding:22px 0;border-bottom:1px solid var(--border-subtle);align-items:baseline}.spec-meta{display:flex;flex-direction:column;gap:5px}.spec-name{color:var(--accent-strong);font-weight:600;letter-spacing:.06em}.spec-spec{color:var(--text-3);font-size:11px}.spec-h3{font-size:21px;font-weight:700;letter-spacing:-.02em}.spec-body{font-size:16px;line-height:1.74}.spec-monosm{color:var(--text-2)}
.space-grid,.motion-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:clamp(28px,5vw,64px);align-items:start}.radius-row{display:flex;gap:20px;flex-wrap:wrap}.radius-demo{display:flex;flex-direction:column;align-items:center;gap:7px}.radius-demo i{width:64px;height:64px;border:1px solid var(--border-strong);background:var(--surface)}.radius-demo b{font:12px/1.5 var(--font-mono);color:var(--accent-strong)}.radius-demo span{font-size:11.5px;color:var(--text-3)}.rhythm-list{list-style:none}.rhythm-list li{display:flex;gap:16px;align-items:baseline;padding:12px 2px;border-bottom:1px solid var(--border-subtle);font-size:14.5px;color:var(--text-2)}.rhythm-list li:first-child{border-top:1px solid var(--border)}.rhythm-list li span{color:var(--accent-strong);font:12px/1.5 var(--font-mono);flex:0 0 clamp(96px,16vw,150px)}
.demo-stage{border:1px dashed var(--border-strong);border-radius:var(--radius-lg);padding:clamp(24px,4vw,40px);display:grid;place-items:center;margin-bottom:14px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);transition:border-color .3s,transform .35s var(--ease),box-shadow .35s var(--ease)}a.card:hover,.demo-card:hover{border-color:var(--text-3);transform:translateY(-4px);box-shadow:var(--shadow)}.demo-card{display:flex;gap:16px;align-items:flex-start;padding:24px 26px;max-width:380px;cursor:pointer}.demo-card>span{color:var(--accent-strong);font-family:var(--font-mono)}.demo-card b{display:block;margin-bottom:6px}.demo-card p{font-size:13.5px;color:var(--text-2)}.btn{display:inline-flex;align-items:center;gap:12px;padding:15px 26px;border:1px solid transparent;border-radius:5px;background:var(--btn-bg);color:var(--btn-text);font-size:15.5px;font-weight:600;cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s}.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.btn:active{transform:scale(.98)}.btn-ghost{border-color:var(--border-strong);background:transparent;color:var(--text)}#replayMotion{font-size:13.5px;padding:11px 18px}
.comp-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(340px,100%),1fr));gap:18px}.comp{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:24px 26px 22px;display:flex;flex-direction:column}.comp>header{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:18px}.comp>header b{font-size:16.5px}.comp>header code{color:var(--text-mono);font:12px/1.5 var(--font-mono)}.stage{display:flex;gap:12px;align-items:center;flex-wrap:wrap;padding:22px;border:1px dashed var(--border-strong);border-radius:var(--radius-lg);margin-bottom:16px;flex:1}.stage.block{display:block}.comp>p{font-size:13px;color:var(--text-3)}.badge{display:inline-flex;padding:5px 11px;border:1px solid var(--border-strong);border-radius:3px;color:var(--text-2);font:11px/1.4 var(--font-mono);letter-spacing:.1em}.badge-solid{background:var(--accent);border-color:var(--accent);color:#fff}.chip{display:inline-flex;padding:5px 14px;border:1px solid var(--border);border-radius:100px;color:var(--text-2);font-size:13px}.sample-card{display:flex;flex-direction:column;gap:8px;padding:20px 22px;max-width:320px}.sample-card small{font:11px/1.4 var(--font-mono);letter-spacing:.18em;color:var(--text-mono)}.sample-card strong{font-size:15.5px}.sample-card span{font-size:13px;color:var(--text-2)}.sample-head{margin:0;padding-bottom:14px}.media-slot{aspect-ratio:21/9;display:grid;place-items:center;background:repeating-linear-gradient(135deg,var(--surface-2),var(--surface-2) 11px,var(--surface-accent) 11px,var(--surface-accent) 22px);border:1px solid var(--border);border-radius:var(--radius)}.media-slot>span{padding:8px 14px;border:1px solid var(--border);border-radius:3px;background:var(--surface);text-align:center;font:12px/1.5 var(--font-mono)}.media-slot small{display:block;color:var(--text-3);font-size:10px}.sample-band{padding:22px 24px;border-radius:var(--radius);background:var(--band-bg);color:oklch(.95 .003 264)}.sample-band>small{display:block;margin-bottom:14px;color:oklch(.56 .012 264);font-family:var(--font-mono)}.sample-band>div{display:flex;gap:14px;align-items:baseline;border:1px solid var(--band-border);background:var(--band-surface);border-radius:var(--radius);padding:16px 18px}.sample-band b{color:var(--band-accent);font-family:var(--font-mono)}.sample-band p{color:var(--band-text-2);font-size:13.5px}.copy-demo{display:inline-flex;align-items:center;gap:12px;background:none;border:0;padding:0;color:var(--text);font-size:15px;cursor:pointer}.copy-demo small{color:var(--text-mono);border:1px solid var(--border-strong);border-radius:3px;padding:3px 8px}.copy-demo:hover{color:var(--accent-strong)}.prose{font-size:16px;line-height:1.9}.prose h3{font-size:20px}.prose p{margin:12px 0}.prose code{padding:.12em .4em;border:1px solid var(--border-subtle);border-radius:3px;background:var(--surface-2)}.prose a{color:var(--accent-strong);text-decoration:underline}.prose blockquote{margin:16px 0;padding:14px 22px;border-left:2px solid var(--accent);background:var(--surface-2);color:var(--text-2)}.prose ul{padding-left:20px;list-style:disc;color:var(--text-2)}
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .65s var(--ease),transform .65s var(--ease);transition-delay:var(--d,0s)}.js .reveal.in{opacity:1;transform:none}.motion-replay{animation:replay .65s var(--ease)}@keyframes replay{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@media(max-width:680px){.specimen{grid-template-columns:1fr;gap:10px}.section-head .side{display:none}.comp-grid{grid-template-columns:1fr}.comp{padding:20px}.radius-row{gap:16px}.radius-demo i{width:54px;height:54px}}
@media(prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}.motion-replay{animation:none}}

/* Motion specimen: match reference typography and interaction states. */
@font-face{font-family:MotionMono;src:url("assets/fonts/jetbrains-mono-regular.woff2") format("woff2");font-display:swap}
.demo-card>span{font-family:MotionMono,"JetBrains Mono",monospace}
.demo-card b{font-weight:600}
.demo-card:active{transform:translateY(-1px) scale(.995)}
#replayMotion{line-height:normal;gap:12px}
@media(prefers-reduced-motion:reduce){.demo-card,.motion-demo .btn{transition:none}.demo-card:hover,.demo-card:active{transform:none}}