*{box-sizing:border-box}
:root{--bg:#f3f5f8;--card:#fff;--ink:#172033;--muted:#617089;--line:#dbe2ec;--accent:#1f5fbf;--accent2:#0d8a6a;--warn:#a15c00;--bad:#b3261e;--soft:#eef3fb}
@media(prefers-color-scheme:dark){:root{--bg:#10141b;--card:#171d27;--ink:#e7edf6;--muted:#9aa8bb;--line:#2b3442;--accent:#8bb4ff;--accent2:#61d6b4;--warn:#f0bf73;--bad:#f29b95;--soft:#1a2434}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans CJK SC","Microsoft YaHei",sans-serif}
code{background:var(--soft);padding:.1em .35em;border-radius:4px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em}
.top{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;padding:26px clamp(16px,4vw,56px);background:var(--card);border-bottom:1px solid var(--line)}
h1{margin:0 0 4px;font-size:clamp(1.4rem,3vw,2rem);letter-spacing:-.02em}h1 span{font-weight:500;color:var(--muted)}
.lead{margin:0;color:var(--muted);max-width:760px}
.health{font-size:.82rem;color:var(--muted);text-align:right;max-width:430px;white-space:pre-wrap}
.layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:20px;padding:24px clamp(16px,4vw,56px);align-items:start}
@media(max-width:980px){.layout{grid-template-columns:1fr}.top{flex-direction:column}.health{text-align:left}}
.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:clamp(14px,2.2vw,24px);box-shadow:0 1px 2px rgba(0,0,0,.04)}
.panel-head{display:flex;justify-content:space-between;gap:12px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:14px}
h2{margin:0;font-size:1.12rem}h3{margin:20px 0 8px;font-size:.98rem}
.chip{font-size:.75rem;background:var(--soft);color:var(--muted);border-radius:999px;padding:4px 10px;text-align:right}
.hint,.fine{color:var(--muted);font-size:.84rem}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:680px){.grid2{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:5px;font-size:.84rem;color:var(--muted)}
.field.wide{grid-column:1/-1}
textarea{min-height:76px;resize:vertical;width:100%;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font:13px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;padding:9px 10px}
textarea:focus,input:focus,select:focus{outline:2px solid color-mix(in srgb,var(--accent) 45%,transparent);border-color:var(--accent)}
#q,#l,#u{min-height:58px}
.controls{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px;font-size:.84rem;color:var(--muted)}
.controls label{display:flex;align-items:center;gap:7px}
select,input[type=number]{border:1px solid var(--line);border-radius:7px;background:var(--bg);color:var(--ink);padding:6px 8px;font:inherit}
.buttons{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
button{border:0;border-radius:8px;padding:9px 18px;font:inherit;font-weight:650;cursor:pointer}
button.primary{background:var(--accent);color:#fff}button.secondary{background:var(--soft);color:var(--ink)}button:disabled{opacity:.55;cursor:wait}
.error{color:var(--bad);background:color-mix(in srgb,var(--bad) 10%,transparent);border-left:4px solid var(--bad);border-radius:0 8px 8px 0;padding:9px 12px;font-size:.88rem}
.badge{font-size:.8rem;background:var(--soft);border-radius:999px;padding:4px 12px;font-weight:700;color:var(--muted)}
.badge.ok{background:color-mix(in srgb,var(--accent2) 15%,transparent);color:var(--accent2)}
.badge.fail{background:color-mix(in srgb,var(--bad) 14%,transparent);color:var(--bad)}
.empty{color:var(--muted);padding:28px 8px;text-align:center}
.metrics{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin:6px 0 4px}
.metric{background:var(--soft);border-radius:8px;padding:9px 11px;display:flex;flex-direction:column;gap:2px}
.metric span{color:var(--muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.04em}.metric strong{font-size:.95rem;font-variant-numeric:tabular-nums}
.solution{background:var(--soft);border-radius:8px;padding:10px 12px;overflow-x:auto;font:13px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;margin:0}
details{margin-top:18px}summary{cursor:pointer;color:var(--accent);font-size:.88rem}details pre{max-height:360px;overflow:auto;background:var(--soft);border-radius:8px;padding:10px;font-size:12px}
.bottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);color:var(--muted);font-size:.8rem;padding:14px clamp(16px,4vw,56px) 30px}