:root {
  --bg: #f5f6f3;
  --surface: #ffffff;
  --surface-2: #fbfbf8;
  --ink: #14160f;
  --muted: #616758;
  --dim: #8b9184;
  --line: #e5e7e0;
  --line-strong: #d4d7cc;
  --brand: #16a34a;
  --brand-dark: #0d7a36;
  --brand-soft: #eaf7ef;
  --amber: #a16207;
  --amber-soft: #fdf6e3;
  --red: #b42318;
  --red-soft: #fdecea;
  --blue: #1d4ed8;
  --blue-soft: #eaf0fd;
  --radius: 14px;
  --sans: 'Microsoft YaHei UI', 'Microsoft YaHei', 'PingFang SC', 'Noto Sans SC', 'Segoe UI', sans-serif;
  --mono: 'Cascadia Mono', 'JetBrains Mono', Consolas, 'SFMono-Regular', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }

.page { width: min(1280px, calc(100% - 40px)); margin: 0 auto; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  background: rgba(245, 246, 243, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--brand), #4ade80);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.06);
  position: relative;
}
.brand-mark::after {
  content: '';
  position: absolute;
  inset: 9px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translate(1px, -1px);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 15px; letter-spacing: 0.02em; }
.brand-text small { font-size: 10px; letter-spacing: 0.16em; color: var(--dim); font-family: var(--mono); }

.topnav { display: flex; gap: 6px; flex-wrap: wrap; }
.topnav a {
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 13.5px;
  color: var(--muted);
  transition: background 0.15s, color 0.15s;
}
.topnav a:hover { background: var(--surface); color: var(--ink); }

/* ---------- hero ---------- */
.hero { padding: 56px 0 40px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--brand-dark);
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px var(--brand-soft);
}
.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(30px, 4.6vw, 50px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  font-weight: 700;
  max-width: 20em;
}
.hero h1 em {
  font-style: normal;
  color: var(--brand-dark);
  box-shadow: inset 0 -0.34em 0 var(--brand-soft);
}
.lede { margin: 0 0 30px; max-width: 62ch; color: var(--muted); font-size: 15.5px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat span { font-size: 12px; color: var(--dim); }
.stat strong { font-family: var(--mono); font-size: 22px; font-weight: 600; letter-spacing: -0.01em; }
.hero-note { margin: 0; font-size: 12.5px; color: var(--dim); font-family: var(--mono); }

/* ---------- panel ---------- */
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 26px 22px;
  margin-bottom: 22px;
}
.panel-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.kicker {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--brand-dark);
}
.panel h2 { margin: 0; font-size: 24px; letter-spacing: -0.01em; }
.panel-desc { margin: 0; max-width: 46ch; color: var(--muted); font-size: 13.5px; }

/* ---------- toolbar ---------- */
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 14px;
}
.search-box {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--surface-2);
  color: var(--dim);
  min-width: 240px;
  flex: 1 1 240px;
  max-width: 340px;
}
.search-box input {
  border: 0; outline: 0; background: transparent; width: 100%;
  color: var(--ink); font-size: 13.5px;
}
.select-box {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 38px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--surface-2);
  font-size: 12.5px;
  color: var(--dim);
}
.select-box select { border: 0; background: transparent; outline: 0; color: var(--ink); font-size: 13px; cursor: pointer; }
.ghost-button {
  height: 38px; padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--surface);
  font-size: 13px;
  color: var(--muted);
}
.ghost-button:hover { border-color: var(--brand); color: var(--brand-dark); }

.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 11px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  font-size: 12.5px;
  color: var(--muted);
}
.chip small { font-family: var(--mono); font-size: 10.5px; color: var(--dim); }
.chip:hover { border-color: var(--brand); color: var(--brand-dark); }
.chip.is-active { background: var(--brand); border-color: var(--brand); color: #fff; }
.chip.is-active small { color: rgba(255, 255, 255, 0.8); }

/* ---------- table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 11px; }
.rank-table { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 940px; }
.rank-table thead th {
  position: sticky; top: 0; z-index: 1;
  background: var(--surface-2);
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.02em;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.rank-table tbody td { padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.rank-table tbody tr:last-child td { border-bottom: 0; }
.rank-table tbody tr:hover { background: #fafbf7; }
.rank-table tbody tr.is-unranked { color: var(--muted); }
.sep-row td {
  background: #fbfbf7;
  color: var(--dim);
  font-size: 12px;
  padding: 9px 14px;
  border-top: 1px solid var(--line-strong);
  letter-spacing: 0.01em;
}
.col-rank { width: 44px; font-family: var(--mono); font-size: 12px; color: var(--dim); }
.col-num { text-align: right; font-family: var(--mono); white-space: nowrap; }
th.col-num { text-align: right; }
.station-name { font-weight: 600; color: var(--ink); }
.station-name:hover { color: var(--brand-dark); }
.station-host { display: block; font-family: var(--mono); font-size: 11px; color: var(--dim); }
.group-cell { color: var(--muted); font-size: 13px; }
.model-name { color: var(--ink); }
.mini-tag {
  display: inline-block;
  margin-left: 6px;
  padding: 0 6px;
  border-radius: 5px;
  background: #f1f2ee;
  color: var(--dim);
  font-size: 10.5px;
  vertical-align: 1px;
}
.ratio { font-size: 15px; font-weight: 700; }
.ratio.is-low { color: var(--brand-dark); }
.ratio-muted { color: var(--muted); font-family: var(--mono); }
.ratio-muted em { font-style: normal; font-size: 10px; color: var(--dim); margin-left: 3px; }
.discount { color: var(--brand-dark); font-size: 12.5px; }
.date-cell { font-family: var(--mono); font-size: 11.5px; color: var(--dim); white-space: nowrap; }
.note-cell {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
  font-size: 12px;
}
.raw-cell { font-family: var(--mono); font-size: 12px; color: var(--muted); white-space: nowrap; }
.source-link { color: var(--brand-dark); font-size: 12.5px; }
.source-link:hover { text-decoration: underline; }
.button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 9px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  font-size: 13.5px;
}
.button:hover { border-color: var(--brand); color: var(--brand-dark); }
.button-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.button-primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); color: #fff; }
.score-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid #d9e2d2;
  background: #eef3ea;
  color: #3f6b2f;
  white-space: nowrap;
}
.score-badge.grade-A { background: #e7f2e2; border-color: #cbe0bf; color: #2f6b23; }
.score-badge.grade-B { background: #e8f0f7; border-color: #cbdeee; color: #275a80; }
.score-badge.grade-C { background: #f7f0df; border-color: #eadcb7; color: #7a5a1c; }
.score-badge.grade-D { background: #f1f1ee; border-color: #deded7; color: #6b6b63; }
.site-card-score { display: inline-flex; align-items: center; gap: 8px; }
[data-parts] { cursor: help; }
.score-tip {
  position: fixed;
  z-index: 80;
  width: 232px;
  padding: 12px 12px 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 14px 36px rgba(22, 32, 16, 0.18);
  pointer-events: none;
}
.score-tip-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 4px; }
.score-tip-head strong { font-size: 13px; }
.score-tip-radar { display: block; width: 188px; height: 188px; margin: 2px auto 4px; }
.score-tip-list { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 10px; margin: 0; padding: 0; list-style: none; font-size: 12px; }
.score-tip-list li { display: flex; justify-content: space-between; color: var(--muted); }
.score-tip-list b { font-family: var(--mono); font-weight: 600; color: var(--ink); }
.score-tip-foot { margin: 6px 0 0; font-size: 10.5px; line-height: 1.5; color: var(--muted); }
.guide h2 { margin: 28px 0 10px; font-size: 20px; }
.guide h3 { margin: 18px 0 8px; font-size: 16px; }
.guide p, .guide li { color: var(--muted); line-height: 1.8; }
.guide ul, .guide ol { padding-left: 22px; }
.guide a { color: var(--brand-dark); }
.guide a:hover { text-decoration: underline; }
.guide code { background: #eff1ec; padding: 1px 5px; border-radius: 5px; font-family: var(--mono); font-size: 12.5px; }
.guide table { width: 100%; margin: 12px 0; border-collapse: collapse; }
.guide table th, .guide table td { border-bottom: 1px solid var(--line); padding: 8px 10px; text-align: left; font-size: 13.5px; }
.basis {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 11.5px;
  white-space: nowrap;
}
.basis-computed_absolute { background: var(--brand-soft); color: var(--brand-dark); }
.basis-converted_ratio { background: var(--blue-soft); color: var(--blue); }
.basis-declared { background: #f0ecfb; color: #6d28d9; }
.basis-raw_ratio { background: var(--amber-soft); color: var(--amber); }
.basis-per_request, .basis-free { background: #f1f2ee; color: var(--muted); }
.empty-cell { padding: 34px 14px !important; text-align: center; color: var(--dim); }
.table-note { margin: 12px 0 0; font-size: 12.5px; color: var(--dim); }

/* ---------- model cards ---------- */
.model-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
.model-card {
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 16px;
  background: var(--surface-2);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.model-card header { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.model-card h3 { margin: 0; font-size: 14.5px; }
.model-card .vendor { font-size: 11px; color: var(--dim); font-family: var(--mono); }
.model-card .official { margin: 0; font-size: 12px; color: var(--muted); }
.model-card .official em { font-style: normal; color: var(--dim); }
.model-best {
  display: flex; align-items: baseline; justify-content: space-between; gap: 10px;
  padding: 9px 11px;
  border-radius: 8px;
  background: var(--brand-soft);
  border: 1px solid #cdebd9;
}
.model-best:hover { border-color: var(--brand); }
.model-best-ratio { font-family: var(--mono); font-weight: 700; color: var(--brand-dark); font-size: 16px; }
.model-best-site { font-size: 11.5px; color: var(--brand-dark); text-align: right; }
.model-best.empty { background: #f3f4f0; border-color: var(--line); color: var(--dim); font-size: 12px; margin: 0; justify-content: flex-start; }

/* ---------- site directory ---------- */
.site-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; margin-top: 16px; }
.site-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.site-card:hover { border-color: var(--line-strong); box-shadow: 0 6px 18px rgba(20, 22, 15, 0.05); }
.site-card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.site-card h3 { margin: 0; font-size: 15.5px; }
.site-card-host { font-family: var(--mono); font-size: 11.5px; color: var(--dim); }
.site-card-host:hover { color: var(--brand-dark); }
.site-card-summary {
  margin: 0; font-size: 12.5px; color: var(--muted);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.site-card-tags { display: flex; gap: 5px; flex-wrap: wrap; }
.tag { font-size: 11px; color: var(--muted); background: #f2f3ef; border-radius: 5px; padding: 1px 7px; }
.site-card-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  margin-top: 4px; padding-top: 10px; border-top: 1px solid var(--line);
  font-size: 11.5px; color: var(--dim); font-family: var(--mono);
}
.site-price { color: var(--brand-dark); font-weight: 700; }
.site-price.is-muted { color: var(--dim); font-weight: 400; }
.status { font-size: 11px; padding: 2px 8px; border-radius: 999px; white-space: nowrap; }
.status.is-good { background: var(--brand-soft); color: var(--brand-dark); }
.status.is-review { background: var(--amber-soft); color: var(--amber); }
.status.is-degraded { background: #fdeedc; color: #b45309; }
.status.is-blocked { background: var(--red-soft); color: var(--red); }

.empty-state { padding: 40px; text-align: center; color: var(--dim); }

/* ---------- notes ---------- */
.notes-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.note-card { border: 1px solid var(--line); border-radius: 11px; padding: 16px; background: var(--surface-2); }
.note-card h3 { margin: 0 0 6px; font-size: 14px; }
.note-card p { margin: 0; font-size: 12.5px; color: var(--muted); }
.notes-links { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 18px; }
.notes-links a { font-size: 13px; color: var(--brand-dark); }
.notes-links a:hover { text-decoration: underline; }

/* ---------- footer ---------- */
.footer {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 26px 0 40px; margin-top: 8px;
  border-top: 1px solid var(--line);
  font-size: 12px; color: var(--dim); font-family: var(--mono);
}
.footer a:hover { color: var(--brand-dark); }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .hero-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero { padding: 36px 0 26px; }
  .panel { padding: 18px 16px; }
  .topnav { display: none; }
  .search-box { max-width: none; }
}