*{box-sizing:border-box}body{margin:0;background:#e9e7dc;color:#35453c;font-family:"Microsoft YaHei",sans-serif}header{height:92px;padding:18px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #cbd0bf}header span,.section-label{font-size:11px;letter-spacing:2px;color:#7c8675}h1{font-family:SimSun,serif;font-size:27px;font-weight:500;margin:8px 0 0}header a{color:#506651;font-size:13px;text-decoration:none;border:1px solid #b4bea9;padding:10px 16px;border-radius:5px}main{display:grid;grid-template-columns:minmax(0,1fr) 320px;height:calc(100vh - 92px)}.viewer{position:relative;min-width:0;background:radial-gradient(ellipse at 50% 40%,#e6ebdf,#ccd3c1)}canvas{width:100%;height:100%;display:block;touch-action:none}.view-label{position:absolute;bottom:28px;left:30px;pointer-events:none}.view-label strong{display:block;font-size:19px;font-weight:500}.view-label span{display:block;font-size:11px;color:#78846f;margin-top:8px}aside{padding:28px 22px;overflow-y:auto;background:#f3f1e7;border-left:1px solid #ccd1c0}.choices{display:grid;grid-template-columns:repeat(2,1fr);gap:7px;margin:14px 0 24px}button,select{font:inherit;color:#485d4b;background:#ecefe1;border:1px solid #c6ceba;border-radius:5px;cursor:pointer}button{padding:10px;font-size:12px}button[aria-pressed=true]{background:#4e6855;color:#f1f0df;border-color:#4e6855}label{display:block;font-size:12px;margin-bottom:9px}select{width:100%;padding:11px;font-size:12px}.play-controls{display:flex;gap:7px;margin:12px 0 28px}.play-controls button{flex:1}p{font-size:11px;line-height:1.9;color:#86907d}output{display:block;font-size:10px;line-height:1.8;color:#6c7b65}@media(max-width:700px){header{height:76px;padding:14px 18px}h1{font-size:22px}main{height:auto;display:block}.viewer{height:58vh;min-height:320px}aside{padding:20px;border-left:0;border-top:1px solid #cbd0bf}.choices{grid-template-columns:repeat(4,1fr);gap:5px}button{padding:9px 4px;font-size:11px}.view-label{bottom:18px;left:18px}.play-controls{margin-bottom:22px}}