:root {
  --bg: #FAF7F2;
  --bg-elevated: #fff;
  --bg-sunken: #F3EFE6;
  --fg: #1A1916;
  --ink-900: #1A1916;
  --fg-muted: #5C5648;
  --fg-subtle: #8A8374;
  --hairline: #E6E0D2;
  --border: #d8cfc0;
  --accent: #D4140C;
  --accent-text: #D4140C;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --radius-2: 8px;
  --radius-card: 12px;
  --dur-1: .15s;
  --dur-2: .22s;
  --ease: cubic-bezier(.22,1,.36,1);
  --tracking-wide: .08em;
  --shadow-1: 0 1px 2px rgba(26,25,22,.04);
  --shadow-2: 0 10px 28px rgba(26,25,22,.07);
  --shadow-3: 0 16px 40px rgba(26,25,22,.1);
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body {
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.radar-page {
  display: grid;
  margin: 0 auto;
  width: 100%;
  gap: var(--space-4);
  max-width: 1760px;
  padding: clamp(16px,2vw,28px) clamp(14px,2.2vw,36px) clamp(32px,4vw,56px);
}
.radar-page > input[type=radio] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}
.radar-head {
  border-bottom: 1px solid var(--hairline);
  display: grid;
  gap: var(--space-3);
  min-width: 0;
  padding: var(--space-3) 0 var(--space-2);
}
.radar-head-main {
  align-items: end;
  display: grid;
  gap: var(--space-5);
  grid-template-columns: minmax(0,1fr) auto;
  min-width: 0;
}
.radar-head-copy { display: grid; gap: var(--space-1); min-width: 0; }
.radar-kicker {
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: var(--tracking-wide);
  margin: 0;
  text-transform: uppercase;
}
.radar-head h1 {
  color: var(--ink-900);
  font-family: var(--font-serif);
  font-size: clamp(30px,2.8vw,44px);
  font-weight: 600;
  letter-spacing: -.015em;
  line-height: 1.12;
  margin: 0;
}
.radar-head p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.75;
  margin: 0;
}
.radar-head-summary { max-width: 720px; }
.radar-head-meta { display: flex; margin: 0; min-width: max-content; }
.radar-head-meta > div {
  border-left: 1px solid var(--hairline);
  display: grid;
  gap: 2px;
  min-width: 86px;
  padding: 0 var(--space-3);
}
.radar-head-meta > div:first-child { border-left: 0; padding-left: 0; }
.radar-head-meta dt { color: var(--fg-subtle); font-size: 11px; font-weight: 800; }
.radar-head-meta dd {
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
  margin: 0;
}
.radar-channel-tabs {
  align-items: center;
  display: flex;
  gap: var(--space-5);
  min-width: 0;
}
.radar-channel-tabs a {
  align-items: center;
  border-bottom: 2px solid transparent;
  color: var(--fg-muted);
  display: inline-flex;
  font-size: 14px;
  font-weight: 800;
  min-height: 42px;
  padding: 0 2px;
  transition: border-color var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}
.radar-channel-tabs a:hover { color: var(--fg); }
.radar-channel-tabs a.is-active {
  border-bottom-color: var(--accent);
  color: var(--accent-text);
}
.radar-overview {
  border-bottom: 1px solid var(--hairline);
  padding-bottom: var(--space-3);
}
.radar-category-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  min-width: 0;
}
.radar-category-stats label,
.radar-category-stats a {
  align-items: center;
  background: transparent;
  border: 0;
  border-bottom: 1px solid transparent;
  border-radius: 0;
  color: var(--fg-muted);
  cursor: pointer;
  display: inline-flex;
  gap: var(--space-2);
  min-height: 30px;
  min-width: 0;
  padding: 0;
}
.radar-category-stats label:hover,
.radar-category-stats a:hover,
.radar-category-stats a.is-active {
  border-bottom-color: var(--border);
  color: var(--fg);
}
.radar-category-stats span { color: inherit; font-size: 12px; font-weight: 800; }
.radar-category-stats strong {
  background: transparent;
  border: 0;
  color: var(--fg-subtle);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  padding: 0;
}
.radar-layout {
  align-items: start;
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 64px minmax(0,1fr);
  min-width: 0;
}
.radar-category-rail {
  background: var(--bg-elevated);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-1);
  display: grid;
  gap: var(--space-1);
  overflow: hidden;
  padding: var(--space-1);
  position: sticky;
  top: 24px;
  transition: width var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease);
  width: 58px;
  z-index: 3;
}
.radar-category-rail:focus-within,
.radar-category-rail:hover {
  box-shadow: var(--shadow-3);
  width: 232px;
}
.radar-category-rail label,
.radar-category-rail a {
  align-items: center;
  border-radius: var(--radius-2);
  color: var(--fg-muted);
  cursor: pointer;
  display: grid;
  gap: var(--space-2);
  grid-template-columns: 38px minmax(0,1fr) auto;
  min-height: 42px;
  min-width: 218px;
  padding: 0 var(--space-2) 0 0;
  text-decoration: none;
}
.radar-category-rail label:hover,
.radar-category-rail a:hover {
  background: var(--bg-sunken);
  color: var(--fg);
}
.radar-category-rail a.is-active {
  background: var(--bg-sunken);
  box-shadow: inset 3px 0 0 var(--accent);
  color: var(--fg);
}
.radar-category-rail svg {
  height: 18px;
  justify-self: center;
  width: 18px;
}
.radar-category-rail span {
  font-weight: 800;
  min-width: 0;
  opacity: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  transform: translateX(-4px);
  transition: opacity var(--dur-2) var(--ease), transform var(--dur-2) var(--ease);
  white-space: nowrap;
}
.radar-category-rail small {
  background: var(--bg-elevated);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-2);
  color: var(--fg-subtle);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  min-width: 24px;
  opacity: 0;
  padding: 2px 5px;
  text-align: center;
  transition: opacity var(--dur-2) var(--ease);
}
.radar-category-rail:focus-within small,
.radar-category-rail:focus-within span,
.radar-category-rail:hover small,
.radar-category-rail:hover span {
  opacity: 1;
  transform: translateX(0);
}
.radar-results {
  display: grid;
  gap: var(--space-4);
  min-width: 0;
}
.radar-results-head {
  align-items: center;
  border-bottom: 1px solid var(--hairline);
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
  min-width: 0;
  padding-bottom: var(--space-3);
}
.radar-results-heading { min-width: 0; }
.radar-results-head h2 {
  color: var(--fg);
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.25;
  margin: 0;
}
.radar-sort-tabs {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.radar-sort-tabs span,
.radar-sort-tabs a {
  align-items: center;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: var(--fg-muted);
  display: inline-flex;
  font-size: 13px;
  font-weight: 800;
  min-height: 38px;
  padding: 0 2px;
}
.radar-sort-tabs .is-active {
  border-bottom-color: var(--accent);
  color: var(--accent-text);
}
.radar-grid {
  display: grid;
  gap: clamp(16px,1.5vw,22px);
  grid-template-columns: repeat(auto-fit, minmax(min(100%,500px), 1fr));
  align-items: stretch;
  min-width: 0;
}
.radar-card {
  background: var(--bg-elevated);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  display: grid;
  min-width: 0;
  transition: border-color var(--dur-1) var(--ease), box-shadow var(--dur-1) var(--ease);
}
.radar-card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-2);
}
.radar-card > a {
  align-content: start;
  color: inherit;
  display: grid;
  gap: var(--space-4);
  grid-template-columns: minmax(0,1fr);
  min-height: 100%;
  padding: var(--space-4);
}
.radar-card-top {
  align-items: start;
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 48px minmax(0,1fr);
  min-width: 0;
}
.radar-card-rank {
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 900;
  line-height: 1.35;
  padding-top: 3px;
  white-space: nowrap;
}
.radar-card-main { display: grid; gap: var(--space-2); min-width: 0; }
.radar-card h3 {
  color: var(--fg);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  overflow-wrap: anywhere;
}
.radar-card:hover h3 { color: var(--accent-text); }
.radar-card p {
  color: var(--fg-muted);
  font-size: 14px;
  line-height: 1.65;
  margin: 0;
}
.radar-card-why {
  background: var(--bg-sunken);
  border-left: 2px solid var(--accent);
  border-radius: var(--radius-2);
  display: grid;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
}
.radar-card-why span {
  color: var(--fg-subtle);
  font-size: 11px;
  font-weight: 800;
}
.radar-card-why strong {
  color: var(--fg);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.68;
}
.radar-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
}
.radar-chip {
  align-items: center;
  background: var(--bg-sunken);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-2);
  color: var(--fg-muted);
  display: inline-flex;
  font-size: 12px;
  gap: 6px;
  min-height: 24px;
  padding: 0 7px;
}
.radar-chip:before {
  background: currentColor;
  border-radius: 999px;
  content: "";
  flex: 0 0 auto;
  height: 5px;
  opacity: .48;
  width: 5px;
}
.radar-card-footer {
  align-items: center;
  border-top: 1px solid var(--hairline);
  display: flex;
  gap: var(--space-3);
  justify-content: space-between;
  margin-top: auto;
  min-width: 0;
  padding-top: var(--space-3);
}
.radar-card-meta {
  color: var(--fg-muted);
  font-size: 12px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.radar-card-open {
  color: var(--accent-text);
  flex: 0 0 auto;
  font-size: 13px;
  font-weight: 800;
}
.site-foot {
  color: var(--fg-subtle);
  font-size: 12px;
  margin: 8px auto 0;
  max-width: 1760px;
  padding: 0 clamp(14px,2.2vw,36px) 36px;
}
@media (max-width: 980px) {
  .radar-head-main,
  .radar-layout { grid-template-columns: 1fr; }
  .radar-category-rail { display: none; }
  .radar-overview { display: block; padding-bottom: var(--space-4); }
  .radar-category-stats {
    display: grid;
    gap: 8px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .radar-category-stats a,
  .radar-category-stats label {
    background: var(--bg-elevated);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-2);
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    min-height: 52px;
    min-width: 0;
    padding: 8px 10px;
  }
  .radar-category-stats a.is-active,
  .radar-category-stats a:hover {
    border-color: var(--accent);
    color: var(--accent-text);
    border-bottom-color: var(--accent);
  }
  .radar-category-stats span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 100%;
  }
  .radar-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .radar-page { padding: var(--space-5) var(--space-4); }
  .radar-overview { display: block; }
  .radar-category-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .radar-results-head {
    align-items: stretch;
    display: grid;
    gap: var(--space-2);
    padding-bottom: var(--space-2);
  }
  .radar-channel-tabs {
    display: grid;
    gap: 0;
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .radar-channel-tabs a {
    font-size: 12px;
    justify-content: center;
    min-width: 0;
    padding: 0 var(--space-1);
    text-align: center;
    white-space: nowrap;
  }
  .radar-head-meta { min-width: 0; width: 100%; }
  .radar-head-meta > div { flex: 1 1; min-width: 0; padding: 0 var(--space-2); }
  .radar-head-meta dd { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .radar-card > a { gap: var(--space-3); }
  .radar-card-rank { padding-top: 0; }
  .radar-card-top { grid-template-columns: 1fr; }
  .radar-card-footer { align-items: flex-start; display: grid; }
}