@charset "UTF-8";
:root{--bg:#f0f1ed;--paper:#fafbf8;--ink:#263532;--muted:#65736d;--line:#dce2db;--accent:#2c6556;--accent-soft:#e4ede5;--warm:#bd744f;--radius:12px;--font:"Segoe UI","Microsoft YaHei",system-ui,sans-serif}
*{box-sizing:border-box}body{margin:0;font:14px/1.5 var(--font);color:var(--ink);background:var(--bg)}button,input,select{font:inherit}button{cursor:pointer;color:inherit}button:disabled{opacity:.5;cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button{border:0;background:none}button,select{touch-action:manipulation}svg{width:22px;height:22px}button svg{pointer-events:none}button:active{transform:translateY(1px)}[hidden]{display:none!important}.header{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 32px;background:var(--paper);border-bottom:1px solid var(--line);position:relative;z-index:2}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-size:17px;font-weight:650;letter-spacing:1px}.brand-icon{width:37px;height:40px;color:var(--accent);display:flex;align-items:center;justify-content:center}.brand-icon svg{width:31px;height:31px}.brand-en{display:block;font-size:8px;font-weight:600;letter-spacing:1.7px;color:var(--muted);margin-top:1px}.header-center{position:absolute;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}.live-dot{width:5px;height:5px;border-radius:50%;background:var(--accent)}.reference-button{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:7px;padding:8px 12px;font-size:12px;transition:.2s}.reference-button svg{width:18px;height:18px}.reference-button:hover{background:var(--accent-soft);border-color:#b8cbbb}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 340px;height:calc(100svh - 108px);min-height:700px}.viewer{position:relative;min-width:0;overflow:hidden;background:radial-gradient(ellipse at 48% 40%,#fafbf8 0%,#eef0ea 70%,#e9ece6 100%)}#scene{position:absolute;inset:0;outline:none}#scene canvas{display:block;touch-action:none;width:100%;height:100%}.scene-heading{position:absolute;top:28px;left:32px;pointer-events:none}.eyebrow{font-size:9px;font-weight:600;letter-spacing:1.7px;margin:0;color:var(--muted)}.eyebrow span{color:#9ea9a2;margin-left:12px}h1{font-size:31px;line-height:1.35;letter-spacing:1px;font-weight:550;margin:11px 0 13px}h1 span{display:block;font-size:12px;letter-spacing:.8px;font-weight:400;color:var(--muted);margin-top:8px}.model-tags{display:flex;gap:6px}.model-tags span{font-size:10px;border:1px solid #d4ddd3;border-radius:4px;padding:3px 7px;color:var(--muted);background:#f5f7f1aa}.scene-tools{position:absolute;right:22px;top:28px;display:flex;flex-direction:column;background:#fafbf8d9;backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:9px;padding:5px;box-shadow:0 4px 16px #354d3c05}.tool{display:flex;align-items:center;justify-content:center;width:34px;height:35px;border-radius:5px;transition:.2s}.tool:hover,.tool.active{background:var(--accent-soft);color:var(--accent)}.tool svg{fill:none;stroke:currentColor;stroke-width:1.4;width:19px;height:19px}.tool-divider{margin:4px 3px;height:1px;background:var(--line)}#labels{position:absolute;inset:0;pointer-events:none;overflow:hidden}.model-label{position:absolute;padding:5px 10px;border:1px solid #c9d3c8;background:#fafbf8e8;border-radius:5px;font-size:10px;box-shadow:0 3px 10px #223b2c07;white-space:nowrap;transition:opacity .15s;transform:translate(-50%,-100%);color:#485b50}.model-label::after{content:"";position:absolute;height:13px;width:1px;background:#b3c2b2;left:50%;top:100%}.model-label b{font-size:9px;color:var(--accent);margin-right:6px;font-weight:600;font-family:monospace}.selected-chip{position:absolute;left:32px;top:174px;background:var(--accent);border-radius:6px;display:flex;align-items:center;gap:14px;padding:6px 8px 6px 12px;color:white;font-size:11px;max-width:calc(100% - 110px)}.selected-chip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.selected-chip button{color:white;font-size:20px;line-height:20px;padding:0 3px}.interaction-hint{position:absolute;left:32px;bottom:177px;display:flex;align-items:center;gap:7px;color:#728074;font-size:10px;pointer-events:none}.interaction-hint svg{fill:none;stroke:currentColor;stroke-width:1; width:15px;height:15px}.hint-dot{margin:0 8px;color:#a8b1a4}.transport{position:absolute;bottom:24px;left:28px;right:28px;background:#fafbf8ed;border:1px solid #d6ded4;border-radius:12px;padding:16px 20px 12px;backdrop-filter:blur(20px);box-shadow:0 6px 26px #263e2b08}.transport-top{display:flex;align-items:center;gap:15px}.play-button{padding:10px 14px;display:flex;align-items:center;gap:8px;background:var(--accent);color:#fff;border-radius:6px;font-size:12px;min-width:120px;justify-content:center}.play-button:hover{background:#245343}.play-button svg{width:13px;height:13px;fill:currentColor}.pause-icon{display:none}.playing .play-icon{display:none}.playing .pause-icon{display:block}.transport-caption{display:flex;flex-direction:column;gap:2px;min-width:0}.transport-caption strong{font-size:12px;font-weight:600}.transport-caption span{font-size:10px;color:var(--muted)}.speed-label{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:10px;color:var(--muted)}select{color:var(--ink);background:#f3f5f0;border:1px solid var(--line);padding:5px 4px;border-radius:5px;font-size:11px}.timeline{display:flex;align-items:center;gap:9px;margin-top:15px;color:var(--muted);font-size:9px}.timeline output{font-size:11px;font-family:Consolas,monospace;color:var(--accent);width:38px;text-align:right}.timeline input{--progress:100%;appearance:none;min-width:0;flex:1;height:3px;border-radius:4px;background:linear-gradient(to right,var(--accent) var(--progress),#dbe1d8 var(--progress));margin:0 3px;cursor:ew-resize}.timeline input::-webkit-slider-thumb{appearance:none;width:13px;height:13px;border-radius:50%;background:var(--accent);border:3px solid #fafbf8;box-shadow:0 0 0 1px var(--accent)}.timeline input::-moz-range-thumb{width:9px;height:9px;border-radius:50%;background:var(--accent);border:2px solid #fafbf8}.chapter-markers{display:flex;justify-content:space-between;margin:10px 42px 0 27px}.chapter-markers button{font-size:9px;color:#6e7b70;padding:4px 2px}.chapter-markers button.active{color:var(--accent);font-weight:650}.sidebar{border-left:1px solid var(--line);background:var(--paper);padding:30px 25px 20px;overflow-y:auto;display:flex;flex-direction:column}.panel-title{display:flex;align-items:center;justify-content:space-between}.panel-title .eyebrow{font-size:8px;letter-spacing:1.3px}.small-index{font-size:10px;font-family:Consolas,monospace;color:#8e9c90}.sidebar h2{font-size:20px;font-weight:550;letter-spacing:.3px;margin:16px 0 7px}.panel-intro{color:var(--muted);font-size:11px;line-height:1.9;margin:0;max-width:260px}.mode-switch{display:flex;background:#edf0e9;border-radius:7px;padding:4px;margin:22px 0 27px}.mode-switch button{flex:1;padding:9px 4px;border-radius:5px;font-size:11px;color:var(--muted);transition:.2s}.mode-switch button.active{color:var(--accent);background:var(--paper);box-shadow:0 1px 5px #30493912;font-weight:600}.inventory-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:7px}h3{font-size:11px;margin:0;font-weight:600}.inventory-heading>span{font-size:9px;color:#839081}.part-row{width:100%;display:flex;align-items:center;gap:10px;padding:14px 5px;border-bottom:1px solid #e5e9e0;text-align:left;border-radius:0;transition:background .2s}.part-row:hover{background:#f0f4ec}.part-row[aria-pressed=true]{background:var(--accent-soft);border-radius:6px;border-color:transparent}.part-number{font-size:9px;font-family:Consolas,monospace;color:#8d9a8e;min-width:13px}.part-icon{display:flex;align-items:center;justify-content:center;width:31px;height:34px;color:#718979;flex-shrink:0}.part-icon svg{width:30px;height:30px;fill:#e1e8dd;stroke:currentColor;stroke-width:1.1;stroke-linejoin:round;stroke-linecap:round}.wheel-icon svg{fill:#dce0eb;stroke:#74829b}.part-info{display:flex;flex-direction:column;gap:3px}.part-info strong{font-size:12px;font-weight:550}.part-info small{color:var(--muted);font-size:9px}.part-count{margin-left:auto;font-size:11px;font-family:Consolas,monospace;color:#728473;padding-right:2px}.part-description{display:flex;gap:9px;align-items:flex-start;padding:15px 0;min-height:68px}.description-line{width:2px;height:27px;background:#bacdbc;flex-shrink:0;margin-top:2px}.part-description p{margin:0;color:var(--muted);font-size:10px;line-height:1.9}.display-settings{border-top:1px solid var(--line);padding-top:16px;margin-top:6px}.display-settings h3{margin-bottom:6px}.setting{display:flex;align-items:center;justify-content:space-between;padding:9px 0;font-size:11px;cursor:pointer;position:relative}.setting input{position:absolute;right:0;width:29px;height:17px;opacity:0}.switch{width:29px;height:17px;border-radius:15px;background:#d9dfd5;position:relative;pointer-events:none}.switch::after{content:"";position:absolute;left:3px;top:3px;width:11px;height:11px;border-radius:50%;background:white;box-shadow:0 1px 3px #0002;transition:.2s}.setting input:checked+.switch{background:var(--accent)}.setting input:checked+.switch::after{transform:translateX(12px)}.setting input:focus-visible+.switch{outline:2px solid var(--accent);outline-offset:3px}.source-note{border-top:1px solid var(--line);padding-top:17px;margin-top:auto;display:flex;gap:10px;align-items:center}.source-symbol{display:flex;align-items:center;justify-content:center;background:#eaf0e7;width:28px;height:28px;border-radius:6px;color:#6b886c;font-size:18px}.source-note strong,.source-note div>span{display:block;font-size:9px;font-weight:400}.source-note div>span{font-size:8px;color:var(--muted);margin-top:3px}.statusbar{height:32px;display:flex;align-items:center;justify-content:space-between;padding:0 30px;background:var(--paper);border-top:1px solid var(--line);font-size:9px;color:var(--muted);letter-spacing:.2px}.statusbar>span{display:flex;align-items:center;gap:6px}.statusbar i{width:4px;height:4px;background:#728773;border-radius:50%}.footer-separator{color:#b8c2b5;margin:0 9px}kbd{font:8px var(--font);border:1px solid #d7dfd2;border-radius:3px;padding:0 5px}.loading{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:12px;background:#f1f3edee;z-index:3;font-size:12px}.loading>span:last-child{font-size:10px;color:var(--muted)}.loader{width:27px;height:27px;border:2px solid #d8e1d3;border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}.scene-error{position:absolute;top:42%;left:50%;transform:translate(-50%,-50%);text-align:center;width:min(80%,380px);background:var(--paper);padding:24px;border:1px solid var(--line);border-radius:12px;z-index:4}.scene-error p{font-size:12px;color:var(--muted)}.scene-error button{border:1px solid var(--line);padding:7px 12px;border-radius:5px;margin:4px}.scene-error button:first-of-type{background:var(--accent);color:white}dialog{max-width:min(1100px,92vw);width:1100px;border:1px solid var(--line);border-radius:16px;background:var(--paper);padding:23px;color:var(--ink);box-shadow:0 30px 100px #13291a33}dialog::backdrop{background:#182920aa;backdrop-filter:blur(7px)}.dialog-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.dialog-heading h2{font-size:21px;margin:6px 0 0;font-weight:500}.dialog-heading button{font-size:29px;line-height:1;padding:6px 12px;color:var(--muted)}dialog video{width:100%;display:block;background:#e8eae5;border-radius:7px}dialog>p{margin:14px 0 0;font-size:11px;color:var(--muted)}@keyframes spin{to{transform:rotate(360deg)}}@media(min-width:1600px){.workspace{grid-template-columns:minmax(0,1fr) 370px}.sidebar{padding:34px 30px}.part-row{padding-top:17px;padding-bottom:17px}.sidebar h2{font-size:23px}.part-info strong{font-size:13px}.part-info small{font-size:10px}.scene-heading{left:44px;top:36px}.transport{left:40px;right:40px;bottom:30px}.interaction-hint{left:44px;bottom:185px}}@media(max-width:1000px){.workspace{grid-template-columns:minmax(0,1fr) 300px}.sidebar{padding:25px 19px}.scene-heading{left:22px}.transport{left:18px;right:18px;padding:14px}.interaction-hint{left:22px}.transport-caption span{display:none}.chapter-markers{margin-right:35px;margin-left:16px}.chapter-markers button{font-size:8px}.header-center{display:none}}@media(max-width:740px){.header{height:64px;padding:0 18px}.brand{font-size:15px;gap:7px}.brand-icon{width:29px}.brand-en{font-size:7px;letter-spacing:1.2px}.reference-button{font-size:11px;padding:7px 10px}.workspace{display:block;height:auto;min-height:0}.viewer{height:calc(100svh - 64px);min-height:570px;max-height:830px}.scene-heading{top:23px;left:21px}h1{font-size:27px;margin-top:8px}h1 span{font-size:11px}.scene-tools{right:13px;top:24px}.tool{width:30px;height:32px}.transport{bottom:22px;left:15px;right:15px;padding:13px 14px 10px}.transport-caption{gap:0}.transport-caption strong{font-size:11px}.play-button{min-width:108px;font-size:11px;padding:9px 12px}.transport-top{gap:10px}.speed-label>span{display:none}.speed-label select{font-size:10px}.chapter-markers{margin:9px 33px 0 0}.chapter-markers button{font-size:8px;white-space:nowrap}.interaction-hint{left:20px;bottom:168px;font-size:9px}.hint-dot{margin:0 5px}.sidebar{border-left:0;border-top:1px solid var(--line);padding:26px 24px 24px;overflow:visible}.sidebar h2{margin-top:13px;font-size:22px}.panel-intro{max-width:none;font-size:12px}.mode-switch{margin-top:19px;margin-bottom:23px}.inventory-heading{margin-bottom:5px}.part-row{padding:14px 7px;gap:15px}.part-info strong{font-size:13px}.part-info small{font-size:10px}.part-count{font-size:12px}.part-description{min-height:55px}.display-settings{margin-top:0}.setting{font-size:12px;padding:12px 0}.source-note{margin-top:20px}.source-note strong{font-size:10px}.source-note div>span{font-size:9px}.statusbar{padding:0 18px;font-size:8px;height:35px}.statusbar>span:last-child{display:none}.model-label{font-size:9px;padding:4px 6px}.selected-chip{left:20px;top:164px;font-size:10px}dialog{padding:15px;border-radius:12px}.dialog-heading h2{font-size:18px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}.loader{animation:none}}
.panel-intro{font-size:12px}.part-info strong{font-size:13px}.part-info small{font-size:11px}.part-description p{font-size:11px}.setting{font-size:12px}.inventory-heading>span{font-size:10px}.model-label{font-size:11px}.source-note strong{font-size:10px}.source-note div>span{font-size:10px}.transport-caption strong{font-size:13px}.transport-caption span{font-size:11px}.chapter-markers button{font-size:10px}.interaction-hint{font-size:11px}.statusbar{font-size:10px}@media(max-width:740px){.model-label{font-size:10px}.interaction-hint{font-size:10px}.chapter-markers button{font-size:9px}.statusbar{font-size:9px}}

@media (min-width:741px) {
  .sidebar .part-row { padding-block: 7px; }
  .sidebar .part-description { min-height: 49px; padding-block: 12px; }
}