:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-soft: rgba(249, 250, 251, 0.72);
  --text: #111827;
  --muted: #6b7280;
  --muted-strong: #4b5563;
  --line: #e5e7eb;
  --line-soft: #f3f4f6;
  --brand: #1a73e8;
  --brand-soft: #f8fbff;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #000000;
  --surface: #0d0d0d;
  --surface-soft: rgba(13, 13, 13, 0.72);
  --text: #f3f4f6;
  --muted: #9ca3af;
  --muted-strong: #d1d5db;
  --line: #1f2937;
  --line-soft: rgba(31, 41, 55, 0.6);
  --brand: #8ab4f8;
  --brand-soft: rgba(4, 30, 73, 0.4);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid rgb(107 114 128 / 0.4); outline-offset: 2px; }
.nav-shell { width: min(1280px, calc(100% - 32px)); margin-inline: auto; }
.section-shell { width: min(1024px, calc(100% - 32px)); margin-inline: auto; }
.section-anchor { scroll-margin-top: 5.5rem; }

.neon-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.neon-blob {
  position: absolute;
  width: 48rem;
  height: 48rem;
  border-radius: 999px;
  opacity: 0.05;
  filter: blur(92px);
  will-change: transform, filter;
}
html[data-theme="dark"] .neon-blob { opacity: 0.14; }
.neon-blob-a {
  top: -14rem;
  left: -12rem;
  background: radial-gradient(circle, #4285f4 0%, transparent 67%);
  animation: neon-a 46s ease-in-out infinite alternate;
}
.neon-blob-b {
  top: 26%;
  right: -15rem;
  background: radial-gradient(circle, #0ea5e9 0%, transparent 67%);
  animation: neon-b 58s ease-in-out infinite alternate;
}
.neon-blob-c {
  bottom: -18rem;
  left: 12%;
  background: radial-gradient(circle, #2563eb 0%, transparent 67%);
  animation: neon-c 52s ease-in-out infinite alternate;
}
@keyframes neon-a {
  to { transform: translate3d(44vw, 28vh, 0) scale(1.12); filter: blur(92px) hue-rotate(10deg); }
}
@keyframes neon-b {
  to { transform: translate3d(-48vw, 20vh, 0) scale(1.08); filter: blur(92px) hue-rotate(-8deg); }
}
@keyframes neon-c {
  to { transform: translate3d(34vw, -42vh, 0) scale(0.95); filter: blur(92px) hue-rotate(12deg); }
}
.site-header, main, .footer { position: relative; z-index: 1; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
}

.nav-shell { min-height: 56px; display: flex; align-items: center; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 650; letter-spacing: -0.02em; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.nav-actions { display: flex; margin-left: auto; align-items: center; gap: 4px; }
.locale-control { position: relative; }
.theme-toggle, .locale-toggle, .github-link {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--muted-strong);
  cursor: pointer;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}
.locale-toggle { width: auto; min-width: 0; padding: 0 10px; gap: 6px; font-size: 14px; }
.theme-toggle:hover, .locale-toggle:hover, .github-link:hover { border-color: var(--line); background: var(--surface-soft); color: var(--text); }
.nav-icon { width: 18px; height: 18px; flex: 0 0 auto; }
.chevron-icon { width: 14px; height: 14px; flex: 0 0 auto; }
.theme-icon { display: inline-flex; }
.locale-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  z-index: 40;
  width: 144px;
  padding: 4px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 24px rgb(0 0 0 / 0.22);
  animation: menu-fade 140ms ease-out;
}
.locale-menu[hidden] { display: none; }
.locale-menu button {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  border: 0;
  background: transparent;
  color: var(--muted-strong);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
}
.locale-menu button:hover { background: var(--surface-soft); color: var(--text); }
.check-icon { display: none; width: 14px; height: 14px; color: var(--brand); }
.locale-menu button[aria-checked="true"] .check-icon { display: block; }
html[data-theme="dark"] .locale-menu { border-color: #374151; background: #111827; }
html[data-theme="dark"] .locale-menu button:hover { background: #1f2937; }
@keyframes menu-fade { from { opacity: 0; transform: translateY(-2px); } to { opacity: 1; transform: translateY(0); } }

.hero { position: relative; overflow: hidden; }
.hero-dots {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgb(26 115 232 / 0.14) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 78%);
  -webkit-mask-image: linear-gradient(to bottom, black 0%, transparent 78%);
}
html[data-theme="dark"] .hero-dots { background-image: radial-gradient(rgb(138 180 248 / 0.16) 1px, transparent 1px); }
.hero-inner {
  position: relative;
  width: min(1152px, calc(100% - 32px));
  margin-inline: auto;
  padding: 96px 0 80px;
  text-align: center;
}
.hero-brand { display: flex; align-items: center; justify-content: center; gap: 14px; font-size: clamp(30px, 5vw, 36px); font-weight: 650; letter-spacing: -0.03em; }
.hero-brand img { width: 64px; height: 64px; border-radius: 14px; }
h1 { max-width: 900px; margin: 26px auto 0; font-size: clamp(32px, 5vw, 48px); line-height: 1.1; letter-spacing: -0.04em; }
h1 span { color: var(--brand); }
.hero-copy { margin: 22px auto 0; max-width: 720px; color: var(--muted-strong); font-size: clamp(16px, 2vw, 18px); font-weight: 500; }
.hero-actions, .cta-actions { margin-top: 30px; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 550;
  transition: background-color 160ms ease, border-color 160ms ease;
}
.button-primary { border-color: #111827; background: #111827; color: #ffffff; }
.button-primary:hover { background: #374151; border-color: #374151; }
html[data-theme="dark"] .button-primary { border-color: #f3f4f6; background: #f3f4f6; color: #111827; }
html[data-theme="dark"] .button-primary:hover { border-color: #ffffff; background: #ffffff; }
.button-secondary { background: var(--surface); }
.button-secondary:hover { background: var(--surface-soft); }
.hero-stats { max-width: 900px; margin: 48px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.hero-stats div {
  display: block;
  padding: 0 12px;
  text-align: center;
}
.hero-stats dt { margin-top: 5px; color: var(--muted-strong); font-size: 12px; font-weight: 650; }
.hero-stats dd { margin: 0; font-size: 28px; font-weight: 650; letter-spacing: -0.03em; }
.hero-stats .metric-desc { max-width: 250px; margin: 13px auto 0; color: var(--muted); font-size: 11px; font-weight: 450; line-height: 1.55; letter-spacing: 0; }
.hero-stats .accent dd { color: var(--brand); }

.section { padding: 96px 0; }
.section-heading { max-width: 768px; margin: 0 auto 56px; text-align: center; }
.eyebrow { margin: 0 0 8px; color: var(--brand); font-size: 14px; font-weight: 650; letter-spacing: 0.05em; text-transform: uppercase; }
.section-heading h2, .cta h2 { margin: 0; font-size: clamp(30px, 4vw, 36px); line-height: 1.15; letter-spacing: -0.035em; }
.section-heading > p:last-child, .cta > p { margin: 16px auto 0; max-width: 680px; color: var(--muted); font-size: 16px; line-height: 1.75; }

.table-wrap { border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.table-hint { display: none; }
table { width: 100%; border-collapse: collapse; table-layout: fixed; font-size: 12px; }
th, td { padding: 10px; border-bottom: 1px solid var(--line-soft); text-align: left; }
th { height: 42px; color: var(--muted); font-size: 12px; font-weight: 500; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: var(--surface-soft); }
.rank-column, .rank-cell { width: 54px; text-align: center; }
.rank-badge { color: var(--muted); font-size: 12px; font-weight: 700; font-variant-numeric: tabular-nums; }
.rank-1, .rank-2, .rank-3 { color: var(--brand); }
.setup-cell { display: flex; align-items: center; gap: 9px; font-weight: 650; }
.setup-cell img { width: 15px; height: 15px; flex: none; object-fit: contain; }
html[data-theme="dark"] .vendor-logo { filter: invert(1); }
.config-meta { display: block; margin: 2px 0 0 24px; color: var(--muted); font-size: 11px; }
.numeric { font-variant-numeric: tabular-nums; text-align: right; }
.sortable { padding: 0; }
.sortable button { display: flex; width: 100%; min-height: 42px; align-items: center; justify-content: flex-end; gap: 5px; padding: 0 10px; border: 0; background: transparent; color: inherit; cursor: pointer; font-size: inherit; }
.sortable button:hover { color: var(--text); }
.sort-arrow { width: 12px; color: var(--faint, var(--muted)); text-align: center; }
th.is-active, td.is-active { background: color-mix(in srgb, var(--brand-soft) 72%, transparent); }
th.is-active button { color: var(--brand); }
.accuracy-measure { display: inline-grid; grid-template-columns: 92px 42px; align-items: center; gap: 10px; }
.accuracy-track { height: 8px; overflow: hidden; border-radius: 99px; background: var(--line); }
.accuracy-fill { display: block; width: var(--accuracy); height: 100%; border-radius: inherit; background: var(--brand); transform-origin: left; animation: grow-bar 480ms cubic-bezier(0.22, 1, 0.36, 1) both; }
.accuracy-measure strong { font-size: 12px; }
@keyframes grow-bar { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.loading-cell { height: 104px; color: var(--muted); text-align: center; }

.chart-card { margin-top: 32px; padding: 24px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.chart-heading { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.chart-heading h3 { margin: 0; font-size: 20px; letter-spacing: -0.025em; }
.chart-legend { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 14px; color: var(--muted); font-size: 10px; }
.chart-legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend-dot { width: 8px; height: 8px; border-radius: 99px; }
.legend-deepseek { background: #2563eb; }
.legend-opus { background: #ef4444; }
.legend-gpt { background: #10b981; }
.chart-wrap { margin-top: 20px; overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-soft); }
.html-chart { position: relative; min-width: 720px; height: 340px; }
.chart-plot { position: absolute; inset: 24px 34px 58px 62px; }
.chart-grid { position: absolute; display: block; pointer-events: none; }
.chart-grid-x { top: 0; bottom: 0; left: var(--position); border-left: 1px solid var(--line-soft); }
.chart-grid-y { right: 0; bottom: var(--position); left: 0; border-top: 1px solid var(--line-soft); }
.chart-tick { position: absolute; color: var(--muted); font-size: 10px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.chart-tick-x { top: calc(100% + 10px); left: 0; transform: translateX(-50%); }
.chart-tick-y { top: 0; right: calc(100% + 10px); transform: translateY(-50%); }
.chart-axis-title { position: absolute; color: var(--muted-strong); font-size: 11px; font-weight: 500; white-space: nowrap; }
.chart-axis-x { top: calc(100% + 34px); left: 50%; transform: translateX(-50%); }
.chart-axis-y { top: 50%; right: calc(100% + 40px); transform: translate(50%, -50%) rotate(-90deg); }
.chart-point { position: absolute; z-index: 2; bottom: var(--y); left: var(--x); width: 14px; height: 14px; padding: 0; transform: translate(-50%, 50%); border: 0; background: transparent; color: var(--text); cursor: pointer; }
.chart-point-dot { display: block; width: 14px; height: 14px; border: 2px solid var(--surface); border-radius: 50%; box-shadow: 0 0 0 1px var(--line); background: currentColor; }
.chart-point.model-deepseek { color: #3b82f6; }
.chart-point.model-opus { color: #ef4444; }
.chart-point.model-gpt { color: #10b981; }
.chart-point-tooltip {
  position: absolute;
  top: 50%;
  left: 22px;
  display: none;
  min-width: 170px;
  padding: 9px 10px;
  transform: translateY(-50%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  box-shadow: 0 10px 30px rgb(0 0 0 / 0.2);
  color: var(--text);
  text-align: left;
  pointer-events: none;
  backdrop-filter: blur(10px);
}
.chart-point-tooltip strong { display: block; font-size: 11px; line-height: 1.3; white-space: nowrap; }
.chart-point-tooltip > span { display: block; margin-top: 3px; color: var(--muted); font-size: 10px; line-height: 1.35; white-space: nowrap; }
.chart-point.tooltip-left .chart-point-tooltip { right: 22px; left: auto; }
.chart-point:hover, .chart-point:focus-visible { z-index: 5; }
.chart-point:hover .chart-point-tooltip, .chart-point:focus-visible .chart-point-tooltip { display: block; }
.chart-point:focus-visible { outline: 2px solid var(--brand); outline-offset: 4px; border-radius: 50%; }

.coverage-section { padding-top: 64px; }
.coverage-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.coverage-grid article { padding: 24px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.coverage-grid h3 { margin: 0; font-size: 17px; letter-spacing: -0.02em; }
.coverage-grid p { margin: 8px 0 18px; color: var(--muted); font-size: 13px; line-height: 1.65; }
.bench-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.bench-tags span { padding: 5px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface-soft); color: var(--muted-strong); font-size: 10px; }

.footer-inner { display: grid; min-height: 112px; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 32px; color: var(--muted); font-size: 12px; }
.footer-inner a { justify-self: end; }
.footer a:hover { color: var(--text); }

@media (max-width: 760px) {
  .locale-label { display: none; }
  .hero-inner { padding: 72px 0 64px; }
  .hero-brand { flex-direction: column; gap: 10px; font-size: 28px; }
  .hero-brand img { width: 56px; height: 56px; }
  .hero-stats { grid-template-columns: 1fr; gap: 12px; }
  .hero-stats div { min-height: 0; }
  .section { padding: 72px 0; }
  .section-heading { margin-bottom: 40px; }
  .coverage-grid { grid-template-columns: 1fr; }
  .chart-card { padding: 20px 14px; }
  .chart-heading { display: block; }
  .chart-legend { margin-top: 12px; justify-content: flex-start; }
  .html-chart { height: 320px; }
  .footer-inner { display: flex; padding: 32px 0; flex-direction: column; align-items: flex-start; }
  .footer-inner a { justify-self: auto; }
  .table-hint { display: block; margin: 0 2px 8px; color: var(--muted); font-size: 11px; text-align: right; }
}

@media (max-width: 460px) {
  .brand span { display: none; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
  .neon-blob { animation: none !important; }
  .accuracy-fill { animation: none !important; }
}