:root{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:#223546;background:#edf2f5;font-synthesis:none;--blue:#234763;--line:#dfe5e8;--muted:#657681}*{box-sizing:border-box}body{margin:0}button,a,input{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #2482bf;outline-offset:4px}button{transition:background .15s,color .15s}button:hover{filter:brightness(.96)}.header{height:84px;padding:0 30px;display:flex;align-items:center;gap:24px;background:white;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:inherit;font-size:20px;font-weight:650}.brand-mark{width:40px;height:40px;border:1px solid var(--blue);border-radius:10px;color:var(--blue);display:grid;place-items:center;font-size:32px;line-height:1}.brand-sub{font-size:12px;font-weight:400;color:var(--muted);display:block;letter-spacing:.06em;margin-top:3px}.header-meta{display:flex;gap:18px;align-items:center;margin-left:auto;font-size:13px;color:var(--muted)}.draft{padding:5px 9px;border-radius:4px;background:#eaf1f6;color:#375c76}.plain{background:white;border:1px solid var(--line);padding:10px 14px;border-radius:6px;font-size:14px;color:var(--blue)}.plain span{margin-left:15px}.workspace{display:grid;grid-template-columns:310px minmax(0,1fr);height:calc(100dvh - 84px);min-height:680px}.sidebar{background:#fff;overflow:auto;padding:29px 26px 20px;border-right:1px solid var(--line);z-index:2}.eyebrow{font-size:14px;color:#6c7c88}.intro h1{font-size:24px;font-weight:600;letter-spacing:-.05em;margin:12px 0}.intro p{font-size:14px;color:var(--muted);line-height:1.8;margin:0}.numbers{display:grid;grid-template-columns:1fr 1fr;margin:25px 0 27px;padding:0 0 23px;border-bottom:1px solid var(--line)}.numbers>div{display:flex;flex-direction:column;gap:6px}.numbers>div+div{padding-left:23px;border-left:1px solid var(--line)}.numbers strong{font-family:"Avenir Next",system-ui,sans-serif;font-size:42px;line-height:1.15;font-weight:500;letter-spacing:-2px}.numbers strong span{font-size:14px;font-family:inherit;font-weight:400;margin-left:7px;letter-spacing:0}.numbers>div>span{font-size:13px;color:var(--muted)}.section{margin-top:23px}.section-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.section-title h2{font-size:15px;font-weight:600;margin:0}.text-button{font-size:13px;background:none;border:0;color:#476e89;padding:4px}.zone-list{display:flex;flex-direction:column;gap:5px}.zone{display:flex;align-items:center;gap:10px;padding:11px 10px;width:100%;border:1px solid transparent;border-radius:6px;background:#fff;text-align:left;color:inherit;font-size:14px}.zone:hover,.zone.active{background:#f1f5f8;border-color:#e0e8ed}.zone-dot{width:9px;height:9px;border-radius:2px;flex-shrink:0}.zone small{margin-left:auto;font-size:13px;color:var(--muted)}.selection{border-top:1px solid var(--line);padding-top:21px}.small{font-size:12px;color:var(--muted)}.selection p{font-size:14px;line-height:1.7;margin:0 0 15px;color:var(--muted)}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px 10px}.detail-grid span{font-size:12px;color:var(--muted)}.detail-grid b{display:block;font-size:14px;color:#344b5b;font-weight:500;margin-top:5px}.primary{display:flex;align-items:center;justify-content:space-between;background:var(--blue);color:#fff;width:100%;border:0;border-radius:6px;padding:12px 14px;margin-top:20px;font-size:14px}.note{font-size:12px;line-height:1.8;color:#788792;margin:24px 0 0}.viewer{position:relative;min-width:0;overflow:hidden;background:#eaf0f4}.viewer-top{position:absolute;z-index:3;top:24px;left:27px;right:24px;display:flex;justify-content:space-between;align-items:center;pointer-events:none}.viewer-top>*{pointer-events:auto}.view-tabs{display:flex;padding:4px;gap:3px;background:rgba(255,255,255,.94);border:1px solid #d8e1e7;border-radius:8px;box-shadow:0 3px 14px #314c6007}.view-tabs button{border:0;background:transparent;color:#667d8d;padding:10px 17px;border-radius:5px;font-size:14px;white-space:nowrap}.view-tabs button.active{background:var(--blue);color:white}.icon-button{width:40px;height:40px;border:1px solid #d9e2e8;border-radius:7px;background:#fff;color:var(--blue);font-size:24px}.view-caption{position:absolute;left:30px;top:99px;display:flex;gap:12px;pointer-events:none}.caption-line{width:3px;background:#7899ae}.view-caption strong{display:block;font-size:16px;font-weight:550}.view-caption div>span{display:block;font-size:12px;color:#778e9e;margin-top:6px}.layer-panel{position:absolute;left:28px;bottom:65px;display:flex;gap:18px;flex-wrap:wrap;padding:13px 16px;background:#ffffffee;border:1px solid #dbe3e8;border-radius:7px}.layer-panel label{font-size:13px;display:flex;gap:6px;align-items:center;color:#486174}.layer-panel input{accent-color:var(--blue);width:15px;height:15px;margin:0}.zoom-controls{position:absolute;right:25px;bottom:65px;display:flex;flex-direction:column;border:1px solid #d9e2e8;border-radius:7px;overflow:hidden}.zoom-controls button{background:white;width:40px;height:40px;border:0;color:var(--blue);font-size:22px}.zoom-controls button+button{border-top:1px solid #d9e2e8}.viewer-bottom{position:absolute;bottom:24px;left:30px;right:27px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#748a9a;pointer-events:none}#canvas-wrap{position:absolute;inset:0;touch-action:none}#canvas-wrap canvas{display:block;width:100%;height:100%}#loading{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:15px;color:#45657b}dialog{width:min(1250px,95vw);max-height:94dvh;border:0;border-radius:12px;padding:0;box-shadow:0 25px 100px #152a4c45}dialog::backdrop{background:#152b4260;backdrop-filter:blur(4px)}.dialog-heading{padding:20px 25px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.dialog-heading h2{font-size:18px;margin:0}.dialog-heading p{font-size:13px;color:var(--muted);margin:5px 0 0}.source-scroll{overflow:auto;max-height:calc(94dvh - 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