:root{--bg:#f4f0ea;--paper:#fffdf8;--ink:#2a241f;--ink-2:#6b6158;--line:#e2dbd1;--accent:#d9573b;--accent-2:#f08a5d;--valley:#2f6fd6;--mountain:#d64545;--radius:10px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--ink);margin:0}body{-webkit-font-smoothing:antialiased;font:14px/1.6 -apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans CJK SC,sans-serif}h1,h2,h3{margin:0;font-weight:600}button,select,input{font:inherit;color:inherit}.top{border-bottom:1px solid var(--line);background:var(--paper);justify-content:space-between;align-items:center;gap:16px;padding:14px 24px;display:flex}.brand{align-items:center;gap:12px;display:flex}.brand svg{flex:none;width:34px;height:34px}.brand h1{letter-spacing:.02em;font-size:19px}.brand h1 span{color:var(--ink-2);margin-left:6px;font-size:14px;font-weight:400}.brand p{color:var(--ink-2);margin:0;font-size:13px}nav{gap:16px;display:flex}nav a{color:var(--accent);font-size:13px;text-decoration:none}nav a.muted{color:var(--ink-2)}nav a:hover{text-decoration:underline}.layout{grid-template-columns:300px minmax(0,1fr) 320px;align-items:start;gap:16px;padding:16px 24px;display:grid}.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:14px}.panel h2,.manual h2{align-items:center;gap:8px;margin-bottom:12px;font-size:15px;display:flex}.panel h2 b,.manual h2 b{background:var(--accent);color:#fff;border-radius:50%;place-items:center;width:22px;height:22px;font-size:12px;display:inline-grid}.samples{grid-template-columns:repeat(4,1fr);gap:6px;margin-bottom:10px;display:grid}.samples button{border:1px solid var(--line);cursor:pointer;color:var(--ink-2);background:#fff;border-radius:8px;flex-direction:column;align-items:center;padding:3px 3px 2px;font-size:12px;display:flex}.samples button canvas{aspect-ratio:1;border-radius:5px;width:100%;display:block}.samples button.on{border-color:var(--accent);color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}.upload-row{gap:8px;margin-bottom:10px;display:flex}.btn{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:8px;justify-content:center;align-items:center;padding:7px 12px;font-size:13px;display:inline-flex}.btn.ghost:hover{border-color:#cbbfb0}.btn:disabled{opacity:.45;cursor:default}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;width:100%;padding:9px;font-weight:600}.btn.primary:hover{background:#c94b30}.preview{position:relative}.preview canvas{border:1px solid var(--line);cursor:crosshair;touch-action:none;background:#fff;border-radius:8px;width:100%;display:block}.hint{color:var(--ink-2);margin:6px 0 10px;font-size:12px}.controls{gap:8px;margin-bottom:12px;display:grid}.controls label{grid-template-columns:1fr auto;align-items:center;gap:4px 8px;font-size:13px;display:grid}.controls label input[type=range]{accent-color:var(--accent);grid-column:1/-1}.controls select{border:1px solid var(--line);background:#fff;border-radius:6px;padding:3px 6px}.check{cursor:pointer;align-items:center;gap:6px;font-size:13px;display:inline-flex!important}.check input{accent-color:var(--accent)}.status{color:var(--ink-2);min-height:1.6em;margin:8px 0 0;font-size:12px}.stage{flex-direction:column;gap:8px;min-width:0;display:flex}.viewport{border-radius:var(--radius);border:1px solid var(--line);background:var(--bg);height:min(68vh,640px);min-height:380px;position:relative;overflow:hidden}.viewport canvas,.fallback{touch-action:none;cursor:grab;width:100%;height:100%;display:block;position:absolute;inset:0}.viewport canvas:active{cursor:grabbing}.fallback svg{width:100%;height:100%}.caption{pointer-events:none;border:1px solid var(--line);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#fffdf8db;border-radius:8px;max-width:min(440px,70%);padding:8px 12px;position:absolute;top:12px;left:14px}.caption .step-no{color:var(--accent);letter-spacing:.04em;font-size:11px;font-weight:600}.caption h3{font-size:15px}.caption p{color:var(--ink-2);margin:2px 0 0;font-size:13px}.view-toggle{background:var(--paper);border:1px solid var(--line);border-radius:8px;display:flex;position:absolute;top:12px;right:12px;overflow:hidden}.view-toggle button{cursor:pointer;color:var(--ink-2);background:0 0;border:0;padding:6px 12px;font-size:13px}.view-toggle button.on{background:var(--ink);color:#fff}.note{color:var(--ink-2);font-size:12px;position:absolute;bottom:12px;left:14px;right:14px}.timeline{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);align-items:center;gap:8px;padding:8px 12px;display:flex}.timeline .icon{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:50%;flex:none;place-items:center;width:32px;height:32px;font-size:18px;line-height:1;display:grid}.timeline .icon.play{background:var(--ink);color:#fff;border-color:var(--ink);font-size:13px}.timeline input[type=range]{accent-color:var(--accent);flex:1;min-width:60px}.summary{color:var(--ink-2);margin:0 0 8px;font-size:13px}#part-list{gap:6px;max-height:330px;margin:0 0 12px;padding:0;list-style:none;display:grid;overflow:auto}#part-list li{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:8px;grid-template-columns:30px 1fr auto;align-items:center;gap:2px 8px;padding:6px 8px;display:grid}#part-list li.on{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}#part-list input[type=color]{cursor:pointer;background:0 0;border:0;grid-row:span 2;width:28px;height:28px;padding:0}#part-list .name{font-size:13px;font-weight:600}#part-list .meta{color:var(--ink-2);grid-column:2/-1;font-size:12px}#part-list select{border:1px solid var(--line);background:#fff;border-radius:6px;padding:1px 4px;font-size:12px}.iou{background:var(--line);vertical-align:middle;border-radius:2px;width:40px;height:4px;margin-left:4px;display:inline-block;overflow:hidden}.iou i{background:var(--accent-2);height:100%;display:block}.cp-box{border-top:1px solid var(--line);padding-top:10px}.cp-head{justify-content:space-between;align-items:center;margin-bottom:6px;font-size:13px;font-weight:600;display:flex}.legend{color:var(--ink-2);align-items:center;gap:4px;font-size:12px;font-weight:400;display:inline-flex}.legend i{border-top:2px dashed var(--valley);width:18px;margin-left:6px;display:inline-block}.legend i.m{border-top:2px dotted var(--mountain)}#cp svg{width:100%;max-width:280px;margin:0 auto;display:block}#cp-info{grid-template-columns:auto 1fr;gap:2px 10px;margin:8px 0 0;font-size:12px;display:grid}#cp-info dt{color:var(--ink-2)}#cp-info dd{margin:0}.manual{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);margin:0 24px 24px;padding:16px}.part-head{align-items:center;gap:10px;margin:18px 0 10px;font-size:14px;font-weight:600;display:flex}.part-head:first-child{margin-top:0}.part-head .chip{border:1px solid #00000026;border-radius:3px;width:14px;height:14px}.part-head small{color:var(--ink-2);font-weight:400}.cards{grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:10px;display:grid}.card{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:10px;padding:8px 10px 10px;transition:border-color .15s}.card:hover,.card.on{border-color:var(--accent)}.card .num{background:var(--accent);color:#fff;border-radius:11px;place-items:center;min-width:22px;height:22px;margin-right:6px;padding:0 6px;font-size:12px;font-weight:600;display:inline-grid}.card b{font-size:13px}.card p{color:var(--ink-2);min-height:3.2em;margin:4px 0 6px;font-size:12px}.card svg{aspect-ratio:1;background:var(--bg);border-radius:6px;width:100%;height:auto;display:block}footer{color:var(--ink-2);padding:0 24px 28px;font-size:12px}@media (width<=1180px){.layout{grid-template-columns:280px minmax(0,1fr)}.panel.parts{grid-column:1/-1}}@media (width<=760px){.top{flex-wrap:wrap;padding:12px 16px}.layout{grid-template-columns:minmax(0,1fr);padding:12px 16px}.stage{order:-1}.viewport{height:62vh;min-height:320px}.manual{margin:0 16px 16px}footer{padding:0 16px 24px}.caption{max-width:calc(100% - 28px);top:52px;right:14px}}.mode-switch{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);grid-template-columns:1fr 1fr;gap:0;display:grid;overflow:hidden}.mode-switch button{cursor:pointer;color:var(--ink-2);text-align:left;background:0 0;border:0;flex-direction:column;padding:8px 12px;font-size:14px;font-weight:600;display:flex}.mode-switch button small{color:var(--ink-2);font-size:12px;font-weight:400}.mode-switch button.on{background:var(--ink);color:#fff}.mode-switch button.on small{color:#ffffffb3}.meshpanel .stats{grid-template-columns:auto 1fr;gap:3px 10px;margin:4px 0 12px;font-size:12px;display:grid}.meshpanel .stats dt{color:var(--ink-2)}.meshpanel .stats dd{font-variant-numeric:tabular-nums;margin:0}.meshpanel .pipeline{color:var(--ink-2);gap:4px;margin:14px 0 0;padding-left:18px;font-size:12px;display:grid}.meshpanel .pipeline b{color:var(--ink);font-weight:600}.mesh-mode .panel.parts,.mesh-mode .manual,.mesh-mode #timeline,.view-toggle[hidden]{display:none}.controls small.muted{color:var(--ink-2);font-size:11px}