:root{color-scheme:light dark;--bg:#f5f6f4;--card:#fff;--text:#1d2422;--muted:#5d6a66;--line:#d9dfdc;--accent:#1f6f5c;--accent-text:#fff;--soft:#e7f2ee;--err:#b3261e;--warn-bg:#fff6df;--warn:#6b4e00}
@media (prefers-color-scheme:dark){:root{--bg:#141817;--card:#1d2321;--text:#e8edeb;--muted:#a0ada8;--line:#343d3a;--accent:#5cc4a8;--accent-text:#0c1f1a;--soft:#22332e;--err:#ff8a80;--warn-bg:#352c12;--warn:#f0d88a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.6 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}
.top,main{max-width:1040px;margin:0 auto;padding:0 16px}
.top{padding-top:28px;padding-bottom:12px}
h1{margin:0;font-size:26px}
.top p{margin:4px 0 0;color:var(--muted)}
h2{margin:0 0 12px;font-size:17px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px;margin-bottom:14px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
button,select,input{font:inherit;color:inherit}
button{background:transparent;border:1px solid var(--line);border-radius:7px;padding:6px 12px;cursor:pointer}
button:hover:not(:disabled){border-color:var(--accent)}
button:disabled{opacity:.5;cursor:not-allowed}
button.primary,button[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:var(--accent-text)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
input,select{background:var(--card);border:1px solid var(--line);border-radius:7px;padding:6px 9px}
.tabs{display:flex;flex-wrap:wrap;gap:6px}
.tabs.small button{padding:2px 9px;font-size:13px}
.note{color:var(--muted);font-size:13.5px;margin:8px 0}
.expr{width:100%;font:600 24px/1.3 ui-monospace,Consolas,monospace;padding:10px 12px}
.expr.bad{border-color:var(--err)}
.legend{display:flex;flex-wrap:wrap;gap:4px 14px;color:var(--muted);font-size:12.5px;margin:6px 0 0}
.legend b{font:600 12.5px ui-monospace,Consolas,monospace;color:var(--text)}
.error{color:var(--err);margin:8px 0 0}
.desc-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px;background:var(--soft);border-radius:8px;padding:10px 12px}
.desc{font-size:18px;font-weight:600;overflow-wrap:anywhere}
.warnings{list-style:none;margin:8px 0 0;padding:0}
.warnings li{background:var(--warn-bg);color:var(--warn);border-radius:7px;padding:6px 10px;font-size:13.5px;margin-top:6px}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.nl{display:flex;gap:8px}.nl input{flex:1;min-width:0}
.builder{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}
.field{border:1px solid var(--line);border-radius:8px;padding:10px}
.field h3{margin:0 0 8px;font-size:14px;display:flex;justify-content:space-between;gap:8px}
.field h3 code{color:var(--accent);overflow-wrap:anywhere}
.field .row{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13.5px}
.field .row input[type=number]{width:68px}
.field .inputs{margin-top:8px}
.chips{display:flex;flex-wrap:wrap;gap:3px;max-height:150px;overflow:auto}
.chips button{padding:1px 0;min-width:34px;font-size:12.5px;border-radius:5px}
.templates{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:8px}
.templates button{text-align:left;display:flex;flex-direction:column;gap:2px}
.templates code{opacity:.75;font-size:13px}
.head-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px}
.controls{display:flex;flex-wrap:wrap;gap:12px;font-size:13.5px}
.table-wrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:13.5px}
th,td{text-align:left;padding:6px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--muted);font-weight:600}
td.time{font-family:ui-monospace,Consolas,monospace;font-variant-numeric:tabular-nums}
td.wrap{white-space:normal;min-width:220px;color:var(--muted)}
.hl{background:var(--soft)}
.alert{background:var(--warn-bg);color:var(--warn);border-radius:7px;padding:8px 12px;margin:0 0 10px;font-size:14px}
tr.current td:first-child{font-weight:700}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--text);color:var(--bg);padding:7px 16px;border-radius:8px}
@media (max-width:560px){.expr{font-size:19px}.desc-row{flex-direction:column;align-items:flex-start}.builder{grid-template-columns:1fr}}