:root {
  color-scheme: light;
  --bg: #fcfcfb;
  --surface: #ffffff;
  --sunken: #f3f2ee;
  --line: #e0ded7;
  --line-strong: #bdbbb3;
  --ink: #0b0b0b;
  --ink2: #52514e;
  --accent: #2a78d6;
  --accent-ink: #1c5fb0;
  --accent-bg: #e3eefb;
  --good: #0f7a4a;
  --good-bg: #e2f4ea;
  --bad: #b3361b;
  --bad-bg: #fbe7e1;
  --warm: #eb6834;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #161615;
    --surface: #1f1f1e;
    --sunken: #262625;
    --line: #363634;
    --line-strong: #55544f;
    --ink: #f0efec;
    --ink2: #b6b5ab;
    --accent: #3987e5;
    --accent-ink: #8dbbf3;
    --accent-bg: #1c2d42;
    --good: #5fcf98;
    --good-bg: #17332a;
    --bad: #f39079;
    --bad-bg: #3d2019;
    --warm: #d95926;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
h1 { font-size: 26px; line-height: 1.2; margin: 0; letter-spacing: -0.01em; }
h2 { font-size: 18px; margin: 28px 0 10px; }
.top { background: var(--surface); border-bottom: 1px solid var(--line); }
.top-row { display: flex; gap: 20px; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; padding-top: 20px; }
.brand p { margin: 4px 0 0; color: var(--ink2); max-width: 640px; }
.top-side { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.link { color: var(--accent-ink); text-decoration: none; }
.link:hover { text-decoration: underline; }
.note { margin: 12px 0 6px; padding: 10px 14px; background: var(--accent-bg); border-radius: var(--radius); }
button {
  font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid var(--line-strong); border-radius: 8px; padding: 7px 14px; cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .5; cursor: default; }
button:focus-visible, textarea:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button.primary:hover:not(:disabled) { filter: brightness(1.08); }
.seg { display: inline-flex; border: 1px solid var(--line-strong); border-radius: 8px; overflow: hidden; }
.seg button { border: 0; border-radius: 0; padding: 5px 12px; background: transparent; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button.on { background: var(--accent-bg); color: var(--accent-ink); font-weight: 600; }
.tabs { display: flex; gap: 4px; margin-top: 8px; overflow-x: auto; }
.tabs button { border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: transparent; padding: 10px 14px; color: var(--ink2); white-space: nowrap; }
.tabs button.on { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }
.panel { padding: 22px 0 8px; }
.muted { color: var(--ink2); }
.foot { font-size: 13px; }
footer.foot { padding: 18px 20px 30px; }
.banner { display: flex; gap: 10px; align-items: center; margin-top: 16px; padding: 10px 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--sunken); }
.spin { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--line-strong); border-top-color: var(--accent); animation: spin 1s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spin { animation: none; } }

.toolbar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.grow { flex: 1; }
.progress { width: 200px; height: 8px; background: var(--sunken); border-radius: 4px; overflow: hidden; }
.progress div { height: 100%; width: 0; background: var(--accent); transition: width .2s; }
.sets { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-top: 16px; }
.set {
  text-align: left; padding: 14px; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); display: flex; flex-direction: column; gap: 6px; min-height: 150px;
}
.set:hover { border-color: var(--line-strong); }
.set.on { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.set h3 { margin: 0; font-size: 15px; }
.set p { margin: 0; color: var(--ink2); font-size: 13px; flex: 1; }
.set .score { font-size: 24px; font-weight: 700; font-variant-numeric: tabular-nums; }
.set .score small { font-size: 13px; font-weight: 400; color: var(--ink2); }
.meter { height: 6px; background: var(--sunken); border-radius: 3px; overflow: hidden; }
.meter div { height: 100%; background: var(--accent); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-top: 16px; }
.stat { padding: 12px 14px; background: var(--sunken); border-radius: var(--radius); }
.stat b { display: block; font-size: 22px; font-variant-numeric: tabular-nums; }
.stat span { color: var(--ink2); font-size: 13px; }
.results-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.results-head h2 { margin: 0; }
.rows { margin-top: 10px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.row { border-top: 1px solid var(--line); }
.row:first-child { border-top: 0; }
.row-head {
  width: 100%; display: grid; grid-template-columns: 74px minmax(0, 1.1fr) minmax(0, 1.5fr) 118px 62px; gap: 12px; align-items: center;
  padding: 9px 14px; text-align: left; background: transparent; border: 0; border-radius: 0;
}
.row-head:hover { background: var(--sunken); }
.row .q { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row .a { color: var(--ink2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row .t { text-align: right; font-variant-numeric: tabular-nums; color: var(--ink2); font-size: 13px; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.badge.ok { background: var(--good-bg); color: var(--good); }
.badge.miss { background: var(--bad-bg); color: var(--bad); }
.badge.info { background: var(--sunken); color: var(--ink2); }
.chip { display: inline-block; padding: 1px 8px; border-radius: 6px; font-size: 12px; background: var(--sunken); color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
.chip.rec { background: var(--accent-bg); color: var(--accent-ink); }
.detail { padding: 4px 14px 16px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; }
.detail .turn { margin: 8px 0; }
.detail .who { font-size: 12px; color: var(--ink2); }
.detail .say { white-space: pre-wrap; overflow-wrap: anywhere; }
.why { background: var(--sunken); border-radius: 8px; padding: 12px 14px; font-size: 13px; align-self: start; }
.why h4 { margin: 0 0 8px; font-size: 13px; }
.bar { display: grid; grid-template-columns: 96px minmax(0, 1fr) 52px; gap: 8px; align-items: center; margin: 4px 0; }
.bar i { display: block; height: 10px; border-radius: 0 3px 3px 0; background: var(--line-strong); }
.bar i.win { background: var(--accent); }
.bar b { font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
.kv { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 2px 10px; margin-top: 10px; }
.kv dt { color: var(--ink2); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.reason { margin: 10px 0 0; color: var(--ink2); overflow-wrap: anywhere; }

.examples { display: flex; flex-wrap: wrap; gap: 8px; }
.examples button { font-size: 13px; padding: 4px 11px; border-radius: 999px; }
.log { margin-top: 16px; display: flex; flex-direction: column; gap: 12px; min-height: 120px; }
.msg { max-width: 82%; padding: 10px 14px; border-radius: 12px; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg.user { align-self: flex-end; background: var(--accent); color: #fff; }
.msg.bot { align-self: flex-start; background: var(--surface); border: 1px solid var(--line); }
.msg .meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 8px; font-size: 12px; color: var(--ink2); white-space: normal; }
.msg .meta button { font-size: 12px; padding: 1px 8px; }
.msg .why { margin-top: 10px; white-space: normal; }
.empty { color: var(--ink2); padding: 22px; text-align: center; border: 1px dashed var(--line-strong); border-radius: var(--radius); }
.ask { display: flex; gap: 10px; margin-top: 16px; align-items: stretch; }
.ask textarea { flex: 1; min-width: 0; font: inherit; color: inherit; background: var(--surface); border: 1px solid var(--line-strong); border-radius: 10px; padding: 10px 12px; resize: vertical; }
.ask-side { display: flex; flex-direction: column; gap: 6px; }

figure { margin: 0 0 26px; }
figure img { width: 100%; height: auto; display: block; border-radius: var(--radius); border: 1px solid var(--line); background: #fcfcfb; }
figcaption { margin-top: 8px; color: var(--ink2); }
.scroll { overflow-x: auto; }
table.data { border-collapse: collapse; width: 100%; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
table.data th, table.data td { padding: 8px 14px; border-top: 1px solid var(--line); text-align: left; vertical-align: top; }
table.data thead th { border-top: 0; color: var(--ink2); font-weight: 500; font-size: 13px; }
.num { text-align: right !important; font-variant-numeric: tabular-nums; white-space: nowrap; }

@media (max-width: 760px) {
  .row-head { grid-template-columns: 68px minmax(0, 1fr) 54px; }
  .row-head .a, .row-head .src { display: none; }
  .detail { grid-template-columns: minmax(0, 1fr); }
  .msg { max-width: 94%; }
  .ask { flex-direction: column; }
  .ask-side { flex-direction: row; }
}