:root {
  --bg: #f6f7f9; --fg: #1a1d23; --muted: #646b78; --card: #fff; --line: #e2e5ea;
  --accent: #2563eb; --ok: #15803d; --warn: #b45309; --bad: #b91c1c;
  --measured-bg: #dcfce7; --measured-fg: #166534; --est-bg: #fef3c7; --est-fg: #92400e;
  --code-bg: #f1f3f6;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", "Segoe UI", Roboto, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115; --fg: #e6e8eb; --muted: #9aa2ae; --card: #171a20; --line: #2a2f38;
    --accent: #60a5fa; --ok: #4ade80; --warn: #fbbf24; --bad: #f87171;
    --measured-bg: #14532d; --measured-fg: #bbf7d0; --est-bg: #451a03; --est-fg: #fde68a;
    --code-bg: #0b0d11;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--fg); line-height: 1.6; font-size: 15px; }
a { color: var(--accent); }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }
code { background: var(--code-bg); padding: 1px 4px; border-radius: 4px; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.site-head { padding: 28px 0 12px; }
.site-head h1 { margin: 0 0 4px; font-size: 26px; }
.lead { margin: 0 0 6px; }
.legend { margin: 0 0 10px; font-size: 13px; color: var(--muted); }
.toc { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px; margin: 16px 0; }
.card h2 { margin: 0 0 12px; font-size: 20px; }
h3 { font-size: 16px; margin: 18px 0 8px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.tag { display: inline-block; font-size: 12px; line-height: 1.4; padding: 1px 7px; border-radius: 999px; font-weight: 600; vertical-align: middle; }
.tag-measured { background: var(--measured-bg); color: var(--measured-fg); }
.tag-est { background: var(--est-bg); color: var(--est-fg); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
label small { font-size: 11px; }
select, input { font: inherit; font-size: 15px; color: var(--fg); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; min-width: 0; width: 100%; }
button { font: inherit; cursor: pointer; }
.btn-ghost, .copy { background: transparent; border: 1px solid var(--line); color: var(--fg); border-radius: 8px; padding: 4px 10px; font-size: 13px; }
.result { margin-top: 14px; display: grid; gap: 12px; }
.res-block { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.res-block h3 { margin: 0 0 8px; font-size: 15px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.verdict { font-size: 18px; font-weight: 700; }
.verdict.ok { color: var(--ok); } .verdict.warn { color: var(--warn); } .verdict.bad { color: var(--bad); }
.kv { width: 100%; border-collapse: collapse; font-size: 14px; }
.kv td { padding: 4px 0; border-bottom: 1px dashed var(--line); }
.kv td:last-child { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.kv tr.total td { font-weight: 700; border-bottom: 0; }
ul.plain { margin: 0; padding-left: 18px; }
.warn-list li { color: var(--warn); }
.cmd { position: relative; margin: 6px 0; }
.cmd pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin: 0; overflow-x: auto; white-space: pre-wrap; word-break: break-all; }
.cmd .copy { position: absolute; top: 6px; right: 6px; background: var(--card); }
.speed { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.calc-out { margin-top: 14px; }
.filters { display: grid; grid-template-columns: 2fr repeat(5, 1fr); gap: 8px; margin-bottom: 8px; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table#t-table { width: 100%; border-collapse: collapse; font-size: 14px; }
#t-table th, #t-table td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
#t-table th { font-size: 13px; color: var(--muted); white-space: nowrap; }
#t-table td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
#t-table details summary { cursor: pointer; color: var(--accent); font-size: 13px; }
#t-table details p { margin: 4px 0 0; font-size: 13px; max-width: 360px; }
.sort { background: none; border: 0; color: var(--accent); padding: 0; font-size: 13px; font-weight: 600; }
.prose li { margin: 4px 0; }
#sources { padding-left: 22px; font-size: 14px; }
.support { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.qr-box { width: 160px; height: 160px; border: 2px dashed var(--line); border-radius: 12px; display: grid; place-items: center; color: var(--muted); font-size: 14px; }
.site-foot { padding: 20px 0 40px; }

@media (max-width: 720px) {
  .filters { grid-template-columns: 1fr 1fr; }
  .filters input { grid-column: 1 / -1; }
  .support { grid-template-columns: 1fr; }
  .card { padding: 14px; border-radius: 10px; }
  /* 手机上表格改为卡片 */
  #t-table thead { display: none; }
  #t-table, #t-table tbody, #t-table tr, #t-table td { display: block; width: 100%; }
  #t-table tr { border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; margin-bottom: 10px; }
  #t-table td { border: 0; padding: 3px 0; display: flex; gap: 8px; }
  #t-table td::before { content: attr(data-label); color: var(--muted); font-size: 12px; min-width: 76px; flex: none; }
}