:root{font-family:Inter,"Microsoft YaHei",system-ui,sans-serif;background:#f5f5ee;color:#294842;--teal:#236b65;--line:#d3ddd0;--muted:#677a70}*{box-sizing:border-box}body{margin:0}main{max-width:1320px;padding:24px 28px 28px;margin:auto}header{margin-bottom:20px}.eyebrow{color:var(--teal);font-size:11px;letter-spacing:1.5px;font-weight:650;margin:0}h1{font-size:34px;letter-spacing:-.6px;font-weight:650;margin:8px 0 10px}.lead{font-size:13px;color:var(--muted);line-height:1.8;margin:0}.types{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-bottom:14px}button{font:inherit;font-size:12px;border:1px solid #c8d5c7;background:#fffef7;color:#345c52;border-radius:7px;padding:8px 12px;min-height:36px;cursor:pointer}button:hover{background:#edf3e7;border-color:#6a9884}button:focus-visible{outline:3px solid #cba766;outline-offset:2px}button[aria-pressed=true]{background:#286b65;color:#fff;border-color:#286b65}button:disabled{opacity:.4;cursor:default}.types button{padding:11px 14px;text-align:left;background:#eaf0e5}.types button[aria-pressed=true]{background:#286b65}.types b{display:block;font-size:15px;letter-spacing:.5px}.types small{display:block;font-size:11px;margin-top:5px;opacity:.8}.viewer{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fffef8;box-shadow:0 6px 25px #334a3a0a}.bar,.tools{display:flex;align-items:center;justify-content:space-between;padding:11px 16px;gap:12px}.bar{border-bottom:1px solid var(--line)}.bar>span{font-size:11px;color:var(--muted)}.buttons{display:flex;gap:6px;flex-wrap:wrap}#scene{height:490px;background:#e8ede3;position:relative;overflow:hidden;touch-action:none}#scene canvas{display:block;width:100%;height:100%}#labels{position:absolute;inset:0;z-index:2;pointer-events:none}.label{position:absolute;transform:translate(-50%,-50%);font-size:12px;white-space:nowrap;border:1px solid #b8cbb9;border-radius:5px;background:#fffff4f0;padding:4px 8px;color:#315c51;box-shadow:0 2px 6px #40544712}.label.title{background:#2b6962;color:#fff;border:0;font-size:11px}.label.selected{background:#f8e2b7;border-color:#b88b45;color:#6b4b20}#scene-status{position:absolute;top:15px;left:17px;background:#fffff3df;padding:7px 10px;border-radius:6px;color:#5f7867;font-size:11px;max-width:calc(100% - 34px);z-index:2}.scene-guide{position:absolute;left:17px;bottom:16px;font-size:10px;color:#6e8071;pointer-events:none}.scale{position:absolute;right:20px;bottom:15px;display:flex;flex-direction:column;align-items:center;gap:5px;color:#647b6c;font-size:10px}#ruler{display:block;border:solid #698472;border-width:0 1px 2px;height:7px;width:80px}.tools{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.reading{display:grid;grid-template-columns:1fr 1.45fr;gap:25px;padding:19px 23px 20px}.reading h2{font-size:23px;font-weight:650;margin:5px 0 9px}.reading p{font-size:12px;line-height:1.8;color:var(--muted);margin:6px 0}.reading .eyebrow{font-size:10px;color:var(--teal)}.selection{border-left:1px solid var(--line);padding-left:23px}.selection strong{font-size:14px;font-weight:600}.part-chips{display:flex;gap:5px;flex-wrap:wrap;margin-top:10px}.part-chips button{font-size:11px;padding:5px 9px;min-height:28px}.caption{font-size:12px;color:var(--muted);line-height:1.8;margin:13px 3px}details{border-top:1px solid var(--line);padding:13px 3px;font-size:12px;color:#64796b;line-height:1.8}summary{cursor:pointer;font-weight:600}table{border-collapse:collapse;width:100%;margin-top:15px;text-align:left}th,td{border-bottom:1px solid var(--line);padding:8px}a{color:var(--teal)}[hidden]{display:none!important}@media(max-width:650px){main{padding:16px 12px}h1{font-size:27px}.lead{font-size:12px}.types{gap:5px}.types button{padding:9px 6px}.types b{font-size:12px}.types small{font-size:9px}.bar{display:block;padding:9px 10px}.bar>span{display:block;margin:9px 0 0;font-size:10px}.tools{padding:9px 10px;gap:8px;flex-wrap:wrap}button{font-size:11px;padding:7px 9px}#scene{height:390px}.reading{grid-template-columns:1fr;gap:12px;padding:16px}.selection{border-left:0;border-top:1px solid var(--line);padding:13px 0 0}.reading h2{font-size:21px}.label{font-size:10px;padding:3px 5px}.label.title{font-size:9px}#scene-status{left:10px;top:10px;font-size:10px;max-width:calc(100% - 20px)}.scene-guide{left:10px;bottom:14px;font-size:8px}.scale{right:12px}.caption{font-size:11px}}
.tool-note{font-size:11px;color:var(--muted)}.source-heading{margin-top:22px}.source-heading strong{font-size:14px;color:#345c52}.source-dimensions{display:flex;flex-wrap:wrap;gap:8px 26px;padding-left:18px}.source-image{display:block;max-width:100%;max-height:800px;object-fit:contain;margin:18px auto;background:#fff;border:1px solid var(--line)}.source-links{margin-top:18px}#parameters{overflow-wrap:anywhere}#parameters table{font-size:11px}#parameters li{margin:5px 0}@media(max-width:650px){#parameters th,#parameters td{padding:6px 4px;font-size:10px}.tool-note{font-size:10px}.source-dimensions{display:block}}
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