:root{--paper:#f7f7f2;--ink:#30382f;--muted:#909387;--olive:#697859;--line:#e5e6de;--canvas:#e8e6dc}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit}button:disabled{cursor:wait;opacity:.5}button:focus-visible,a:focus-visible{outline:2px solid var(--olive);outline-offset:4px}button{border:0;background:none}header{height:80px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 35px;gap:20px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:inherit}.brand-mark{font-size:35px;line-height:1;color:var(--olive)}.brand strong{font-size:23px;letter-spacing:5px}.brand-en{font-size:10px;letter-spacing:2.5px;margin-left:10px;border-left:1px solid #cccfc4;padding-left:20px}.project-label{display:flex;align-items:center;gap:12px;font-size:12px;letter-spacing:1px;color:#70776b}.status-dot{width:6px;height:6px;display:inline-block;border-radius:50%;background:#849774;flex-shrink:0}.tag{font-size:10px;border:1px solid #dadfd2;border-radius:4px;padding:5px 8px;color:#768469;letter-spacing:0}.text-button{font-size:12px;display:flex;gap:25px}.layout{height:calc(100dvh - 80px);min-height:580px;display:grid;grid-template-columns:280px 1fr}.sidebar{padding:32px 27px 18px;display:flex;flex-direction:column;overflow:auto;border-right:1px solid var(--line)}.eyebrow{font-size:9px;letter-spacing:2.3px;font-weight:600;color:#8b927e}.intro h1{font-size:32px;line-height:1.5;letter-spacing:2px;font-weight:500;margin:15px 0 12px}.intro p{font-size:12px;line-height:1.9;color:#96998e}.specs{display:flex;margin:24px 0 29px;padding-bottom:25px;border-bottom:1px solid var(--line)}.specs>div{flex:1;border-right:1px solid var(--line);padding-left:20px}.specs>div:first-child{padding-left:0}.specs>div:last-child{border:0}.specs strong{font:24px Georgia,serif;display:block}.specs strong span{font:10px sans-serif;margin-left:5px;color:#8d9384}.specs small{display:block;font-size:9px;margin-top:6px;color:#919687}.room-heading{display:flex;justify-content:space-between;font-size:11px;margin:0 4px 14px;letter-spacing:1px}.room-heading small{font-size:10px;color:#9b9f91;letter-spacing:0}.room-list{display:flex;flex-direction:column;gap:4px}.room{width:100%;padding:11px 13px;display:flex;align-items:center;gap:14px;text-align:left;border-radius:7px;transition:background .2s,color .2s}.room>span:nth-child(2){font-size:12px}.room small{display:block;font-size:7px;letter-spacing:1px;margin-top:4px;color:#9ba28f}.room-icon{font-size:22px;width:22px;color:#909b84}.room-arrow{margin-left:auto;font-size:16px;color:#a6ad9d;opacity:0}.room.active{background:#e9eddf;color:#465c38}.room.active .room-arrow,.room:hover .room-arrow{opacity:1}.room:hover{background:#edf0e6}.sidebar-foot{display:flex;gap:12px;border-top:1px solid var(--line);margin-top:auto;padding-top:20px;font-size:9px;color:#7f8874;align-items:center}.sidebar-foot small{display:block;margin-top:5px;font-size:9px;color:#a1a696}.tiny-logo{font-size:10px;letter-spacing:1px;border:1px solid #d8decd;border-radius:5px;padding:9px}.viewer{position:relative;overflow:hidden;background:var(--canvas);min-width:0}canvas{width:100%;height:100%;display:block;outline:0;touch-action:none;cursor:grab}canvas:active{cursor:grabbing}.scene-heading{position:absolute;left:40px;top:32px;pointer-events:none}.scene-heading h2{font-size:25px;letter-spacing:2px;font-weight:500;margin:9px 0}.scene-heading p{font-size:11px;color:#858a7b;letter-spacing:1px}.top-actions{position:absolute;right:28px;top:27px;display:flex;gap:8px}.icon-button{border-radius:7px;background:#fafbf5db;border:1px solid #ffffff70;width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;font-size:20px;box-shadow:0 2px 8px #30382f05}.icon-button:hover{background:#fff}.minimap{position:absolute;right:28px;top:80px;width:174px;padding:14px;background:#fafbf4e8;border:1px solid #ffffffb0;border-radius:10px;box-shadow:0 4px 20px #36402c06;backdrop-filter:blur(8px)}.map-title{display:flex;justify-content:space-between;font-size:10px;color:#828b76;margin-bottom:13px}.map-title span+span{font-size:9px}.minimap svg{display:block;width:100%}.minimap small{display:block;font-size:8px;text-align:center;color:#9bA38f;margin-top:10px}.minimap path[data-room].selected{fill:#bdcba8;stroke:#8d9f78}.minimap svg text{pointer-events:none}.scene-note{position:absolute;left:40px;bottom:28px;display:flex;align-items:center;gap:7px;font-size:10px;color:#8a917e}.zoom-controls{position:absolute;right:28px;bottom:30px;display:flex;flex-direction:column;gap:5px}.bottom-area{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);display:flex;align-items:center;flex-direction:column;gap:15px;width:max-content;max-width:calc(100% - 40px)}.hint{display:flex;align-items:center;gap:12px;color:#8b927e;font-size:10px;white-space:nowrap}.hint i{height:3px;width:3px;border-radius:50%;background:#aab29c}.toolbar{display:flex;align-items:center;gap:12px;padding:7px 12px 7px 7px;background:#fbfcf6f0;border:1px solid #fff;border-radius:12px;box-shadow:0 7px 35px #40512c14;backdrop-filter:blur(15px);white-space:nowrap}.mode-group{display:flex;gap:4px}.mode{padding:12px 16px;border-radius:8px;display:flex;gap:8px;align-items:center;font-size:14px}.mode span,.tool-button span{font-size:11px}.mode.active{background:#6e7d5c;color:white}.tool-button{padding:9px 8px;display:flex;gap:7px;align-items:center;color:#6c7860}.tool-button.active{background:#e5ebda;border-radius:6px}.divider{height:22px;width:1px;background:#e1e5d8}.loading{position:absolute;inset:0;background:#e8e6dc;z-index:5;display:flex;align-items:center;justify-content:center;flex-direction:column;transition:opacity .7s}.loading.done{opacity:0;pointer-events:none}.loading-mark{font-size:65px;color:#788667;margin-bottom:22px}.loading h2{font-size:24px;font-weight:400;letter-spacing:3px}.loading p{color:#909581;font-size:12px}.progress-track{width:210px;height:3px;background:#d8dccc;margin:25px 0 12px;border-radius:10px;overflow:hidden}.progress-track>div{height:100%;background:#738564;width:0;transition:width .2s}#progress-label{font-size:10px;color:#8c967e}#retry{margin-top:20px;padding:12px 20px;border:1px solid #8c967e;border-radius:5px}.room-transition{pointer-events:none;position:absolute;inset:0;background:#e8e6dc;opacity:0;transition:opacity .22s}.room-transition.show{opacity:.85}.touch-pad{position:absolute;bottom:114px;right:20px;text-align:center}.touch-pad button{width:39px;height:39px;background:#fbfcf2e8;border:1px solid #c8d0bd;border-radius:9px;margin:2px;touch-action:none;user-select:none}.touch-pad[hidden]{display:none}dialog{max-width:480px;width:calc(100% - 32px);border:1px solid #e7eadf;border-radius:16px;padding:40px;background:#f9faf4;color:var(--ink);box-shadow:0 20px 120px #29312340}dialog::backdrop{background:#2631226b;backdrop-filter:blur(5px)}.close{position:absolute;top:13px;right:18px;font-size:25px;color:#8a9480}dialog h2{font-size:23px;font-weight:500;line-height:1.6}.guide-row{border-bottom:1px solid #e2e7d9;padding:14px 0}.guide-row strong{font-size:13px}.guide-row p{font-size:12px;color:#818b76;line-height:1.9;margin-bottom:0}.guide-note{font-size:10px;line-height:1.8;color:#9aa28e;margin-top:22px}.primary{padding:13px 24px;border-radius:7px;background:#6e7d5c;color:white;margin-top:12px;font-size:12px}body.walking .scene-heading{background:#f8faf0e8;padding:15px 20px;border-radius:10px;top:20px;left:25px}body.walking .scene-heading h2{font-size:20px}body.walking .scene-heading p{display:none}body.walking .scene-note,body.walking .hint{background:#f8faf0dd;padding:6px 10px;border-radius:5px}body.walking .zoom-controls{display:none}@media(min-width:1500px){.layout{grid-template-columns:310px 1fr}.sidebar{padding-left:34px;padding-right:34px}.intro h1{font-size:38px}.room{padding-top:13px;padding-bottom:13px}}@media(max-height:850px) and (min-width:801px){.sidebar{padding-top:22px}.intro h1{font-size:27px;margin:9px 0}.intro p{display:none}.specs{margin:18px 0;padding-bottom:18px}.room{padding:8px 11px}.sidebar-foot{padding-top:12px;margin-top:15px}}@media(max-width:1050px){.layout{grid-template-columns:235px 1fr}.sidebar{padding-left:20px;padding-right:20px}.scene-heading{left:25px}.minimap{width:135px;right:18px}.scene-note{display:none}.toolbar{gap:5px}.mode{padding:12px}.top-actions{right:18px}.zoom-controls{right:18px;bottom:100px}.project-label{font-size:10px}.brand-en{display:none}}@media(max-width:800px){header{height:62px;padding:0 18px}.brand strong{font-size:20px}.brand-mark{font-size:29px}.project-label{display:none}.layout{height:calc(100dvh - 62px);min-height:550px;display:flex;flex-direction:column-reverse}.viewer{flex:1;min-height:390px}.sidebar{padding:10px 12px;border-top:1px solid var(--line);overflow-x:auto;overflow-y:hidden;flex:none}.intro,.room-heading,.sidebar-foot{display:none}.room-list{flex-direction:row;gap:6px;width:max-content}.room{width:auto;min-width:73px;padding:9px 10px;gap:7px;flex-direction:column;text-align:center}.room small,.room-arrow{display:none}.room-icon{font-size:19px}.room>span:nth-child(2){font-size:10px}.scene-heading{left:20px;top:21px}.scene-heading h2{font-size:21px}.scene-heading p{display:none}.scene-heading .eyebrow{font-size:7px}.top-actions{top:17px;right:15px}.minimap{top:64px;right:15px;width:102px;padding:9px}.map-title{font-size:8px;margin-bottom:6px}.minimap small{display:none}.bottom-area{bottom:15px;gap:10px;max-width:calc(100% - 20px)}.toolbar{padding:5px;gap:3px;border-radius:10px}.mode{padding:10px 8px;gap:4px}.mode span,.tool-button span{font-size:10px}.tool-button{padding:8px 6px;gap:5px}.hint{font-size:8px;gap:8px}.zoom-controls{bottom:112px;right:18px}.scene-heading{max-width:55%}.scene-heading h2{letter-spacing:1px}.touch-pad{bottom:100px}body.walking .scene-heading{left:15px;top:15px;padding:10px 14px}.scene-note{display:none}}