:root{color-scheme:light;--bg:#f4eee2;--paper:#fffaf1;--ink:#20303b;--muted:#827564;--line:#e4d5c2;--accent:#b6543b;--wash:#f0ded0;--green:#30674a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;font-size:15px;line-height:1.65}.shell{width:min(1120px,100%);margin:auto;padding:32px 32px 24px}header{display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{font:bold 38px/1 Georgia,serif;letter-spacing:-2px;color:var(--ink);text-decoration:none}.brand b{color:var(--accent)}.chip{font-size:12px;border:1px solid var(--line);padding:6px 12px;border-radius:100px;color:var(--muted)}.intro{margin:44px 0 24px;max-width:760px}.kicker{color:var(--accent);font-size:13px;letter-spacing:1px}.intro h1{font-family:"Songti SC",Georgia,serif;font-weight:600;line-height:1.35;font-size:clamp(28px,3.4vw,42px);margin:12px 0 16px}.intro>p:last-child{color:var(--muted)}.status-banner{border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:12px;padding:15px 18px;background:var(--wash);margin:0 0 24px;overflow-wrap:anywhere}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.panel{min-width:0;background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:24px}.panel-heading{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}.panel-heading h2{font-size:18px;margin:0}.number{color:var(--accent);font-family:Georgia,serif;font-size:18px}.help{font-size:13px;color:var(--muted);margin:10px 0 16px}label{display:block;font-size:13px;color:var(--muted);margin:14px 0}input,select{width:100%;display:block;margin-top:7px;padding:11px 12px;min-height:44px;border:1px solid var(--line);border-radius:10px;background:var(--paper);font:inherit;color:var(--ink)}button{cursor:pointer;border:1px solid var(--line);border-radius:11px;padding:11px 15px;min-height:44px;font:inherit;font-weight:600;background:transparent;color:var(--ink);transition:background .16s,transform .16s}.primary{background:var(--accent);color:white;border-color:var(--accent)}.secondary{background:var(--paper);color:var(--accent)}.text-button{border-color:transparent;color:var(--muted);font-size:13px}button:disabled{opacity:.48;cursor:not-allowed}.buttons{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}.buttons>*{flex:1;min-width:135px}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #bd7458;outline-offset:3px}button:not(:disabled):hover{transform:translateY(-1px);box-shadow:0 3px 12px #50311b10}.secondary:not(:disabled):hover{background:var(--wash)}.result{margin:14px 0;padding:12px 14px;border-radius:10px;border:1px solid var(--line);font-size:13px;overflow-wrap:anywhere;white-space:pre-wrap}.evidence{margin-top:20px}.evidence .panel-heading button{margin-left:auto}#events{margin:0;padding:0;list-style:none}#events li{border-top:1px solid var(--line);padding:12px 0;font-size:13px;overflow-wrap:anywhere}footer{text-align:center;color:var(--muted);font-size:12px;margin:28px 0 8px}form[hidden],button[hidden]{display:none}@media(max-width:700px){.shell{padding:22px 18px}.intro{margin-top:30px}.grid{grid-template-columns:1fr}.panel{padding:20px}.brand{font-size:32px}.chip{font-size:11px;padding:5px 9px}.buttons>*{min-width:115px;font-size:14px}}@media(prefers-reduced-motion:reduce){button{transition:none}}