:root {
  --bg: #eef6ff;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-strong: #ffffff;
  --line: rgba(39, 97, 177, 0.16);
  --text: #12345d;
  --muted: #5d79a1;
  --blue: #1f6ed4;
  --blue-strong: #0d4ea6;
  --blue-soft: #dcecff;
  --gold: #f3b637;
  --green: #17945f;
  --red: #ca4b52;
  --shadow: 0 20px 50px rgba(28, 81, 153, 0.12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Noto Sans SC", "Helvetica Neue", sans-serif;
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.9), transparent 36%), linear-gradient(180deg, #f7fbff 0%, var(--bg) 100%);
  color: var(--text);
  letter-spacing: 0;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 12px clamp(20px, 4vw, 56px);
  border-bottom: 1px solid rgba(31, 110, 212, 0.16);
  background: rgba(250, 253, 255, 0.88);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  position: relative;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  overflow: hidden;
  border: 1px solid rgba(31, 110, 212, 0.18);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 28px rgba(0, 87, 232, 0.16);
}
.brand-mark img { width: 100%; height: 100%; object-fit: contain; border-radius: inherit; }
.brand strong, .brand small { display: block; line-height: 1.15; }
.brand small { color: var(--muted); font-size: 12px; }
.nav {
  display: flex;
  gap: 6px;
  padding: 5px;
  border: 1px solid rgba(31, 110, 212, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}
.nav a {
  min-width: 54px;
  padding: 9px 13px;
  color: var(--blue-strong);
  font-size: 14px;
  font-weight: 800;
  text-align: center;
  border-radius: 999px;
}
.nav a:hover, .nav a:focus-visible { background: var(--blue-soft); outline: none; }
.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: end;
  padding: clamp(76px, 10vw, 132px) clamp(20px, 5vw, 72px) clamp(30px, 6vw, 60px);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero-media { position: absolute; inset: 0; z-index: -2; opacity: 0.48; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; filter: saturate(1.05); }
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(255,255,255,0.52), rgba(255,255,255,0.76) 48%, rgba(255,255,255,0.94));
}
.hero-copy { max-width: 940px; }
.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}
.hero h1 {
  margin: 0;
  color: #061f55;
  font-size: clamp(40px, 6.6vw, 76px);
  line-height: 1.04;
  letter-spacing: 0;
  text-shadow: 0 2px 0 rgba(255, 255, 255, 0.76);
}
.hero-title-main, .hero-title-sub { display: block; }
.hero-title-sub { color: var(--blue); }
.lead {
  max-width: 760px;
  margin: 22px 0 0;
  color: #172657;
  font-size: clamp(18px, 2.2vw, 25px);
  line-height: 1.65;
  font-weight: 650;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}
.primary-action, .secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
}
.primary-action { color: white; background: linear-gradient(135deg, var(--blue), #2288ff); box-shadow: 0 14px 28px rgba(11, 112, 255, 0.24); }
.secondary-action { color: var(--blue-strong); background: rgba(255,255,255,0.78); border: 1px solid rgba(31, 110, 212, 0.18); }
.race-facts, .hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  max-width: 980px;
  margin-top: 24px;
}
.race-facts article, .stat-card {
  border: 1px solid rgba(31, 110, 212, 0.12);
  border-radius: 12px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}
.race-facts span, .stat-card span { display: block; color: var(--muted); font-size: 13px; font-weight: 800; }
.race-facts strong, .stat-card strong { display: block; margin-top: 6px; color: var(--blue-strong); font-size: 26px; }
.content { max-width: 1180px; margin: 0 auto; padding: 28px; }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  box-shadow: var(--shadow);
}
.panel + .panel, .two-column, .content > .panel { margin-top: 20px; }
.panel-header { display: flex; justify-content: space-between; align-items: flex-end; gap: 18px; margin-bottom: 18px; }
.panel-header h2 { margin: 0; font-size: 22px; }
.panel-header p { margin: 0; max-width: 520px; color: var(--muted); line-height: 1.6; }
.fusion-showcase {
  display: grid;
  grid-template-columns: minmax(260px, 0.82fr) minmax(0, 1.18fr);
  gap: 16px;
}
.stage-visual {
  display: grid;
  align-content: end;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid rgba(31, 110, 212, 0.14);
  border-radius: 14px;
  background: #0e2f5d;
}
.stage-visual img { width: 100%; height: 100%; min-height: 260px; object-fit: cover; opacity: 0.88; }
.stage-caption { padding: 16px; color: #dcecff; background: linear-gradient(180deg, rgba(14,47,93,0.1), rgba(14,47,93,0.96)); }
.stage-caption strong { display: block; color: white; font-size: 22px; }
.stage-caption span { display: block; margin-top: 8px; line-height: 1.6; }
.stage-stack { display: grid; gap: 14px; }
.metric-grid, .gate-grid, .front-runner-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.metric-card, .gate-card, .front-runner-card, .grade-card {
  border: 1px solid rgba(31, 110, 212, 0.12);
  border-radius: 12px;
  padding: 16px;
  background: var(--panel-strong);
}
.metric-card span, .gate-card span, .grade-card span { color: var(--muted); font-size: 13px; font-weight: 800; }
.metric-card strong, .gate-card strong { display: block; margin-top: 7px; color: var(--blue-strong); font-size: 34px; line-height: 1; }
.grade-strip { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; }
.grade-card { min-height: 96px; overflow: hidden; position: relative; }
.grade-card i { position: absolute; inset: auto 0 0; height: var(--bar); background: linear-gradient(180deg, #74b4ff, var(--blue)); opacity: 0.22; }
.grade-card strong { position: relative; display: block; color: var(--blue-strong); font-size: 28px; }
.meter { height: 8px; margin-top: 12px; overflow: hidden; border-radius: 999px; background: var(--blue-soft); }
.meter span { display: block; height: 100%; background: linear-gradient(90deg, var(--blue), var(--green)); }
.gate-card p { margin: 10px 0 0; color: var(--muted); line-height: 1.55; }
.two-column { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.filters { display: flex; gap: 12px; margin-bottom: 18px; }
.filters input, .filters select {
  border: 1px solid rgba(31, 110, 212, 0.2);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 14px;
  background: #fff;
  color: var(--text);
}
.filters input { flex: 1; }
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 14px; }
.project-card {
  position: relative;
  overflow: hidden;
  background: var(--panel-strong);
  border: 1px solid rgba(31, 110, 212, 0.12);
  border-radius: 14px;
  padding: 18px;
}
.project-card::before, .front-runner-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--blue), #76b2ff, var(--gold));
}
.project-card h3, .front-runner-card h3 { margin: 0; color: var(--text); font-size: 20px; }
.meta-row { margin-top: 6px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.chip-row, .status-rail { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.score-chip, .mode-chip, .status-rail span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 13px;
  font-weight: 800;
}
.score-chip { background: var(--blue-soft); color: var(--blue-strong); }
.mode-chip, .status-rail span.pass { background: #dff7ea; color: #086c42; border: 1px solid rgba(23, 148, 95, 0.22); }
.status-rail span.fail { background: #fde8e8; color: #9b2f2f; border: 1px solid rgba(202, 75, 82, 0.22); }
.card-copy, .review-comment { margin: 14px 0 0; color: var(--text); font-size: 14px; line-height: 1.7; }
.review-comment { color: var(--muted); }
.card-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.card-links a, .legacy-card {
  border: 1px solid rgba(31, 110, 212, 0.15);
  border-radius: 10px;
  padding: 9px 12px;
  background: #fff;
  color: var(--blue-strong);
  font-size: 13px;
  font-weight: 800;
}
.innovation-panel {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(8, 45, 95, 0.96), rgba(18, 72, 137, 0.92)), repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 36px);
  color: #fff;
}
.innovation-panel .panel-header h2, .innovation-panel .panel-header p, .innovation-panel .eyebrow { color: #fff; }
.front-runner-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.front-runner-card { position: relative; min-height: 280px; color: var(--text); }
.front-runner-card .score-chip { font-size: 18px; }
.issue-list { display: grid; gap: 10px; }
.issue-item {
  border: 1px solid rgba(31, 110, 212, 0.12);
  border-radius: 12px;
  background: var(--panel-strong);
  padding: 14px 16px;
  color: var(--muted);
  line-height: 1.65;
}
.legacy-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.legacy-card { display: block; padding: 16px; }
.legacy-card strong, .legacy-card span { display: block; }
.legacy-card span { margin-top: 7px; color: var(--muted); line-height: 1.6; }
@media (max-width: 980px) {
  .site-header, .panel-header { align-items: flex-start; flex-direction: column; }
  .nav { width: 100%; overflow-x: auto; }
  .hero { min-height: auto; }
  .race-facts, .hero-stats, .fusion-showcase, .two-column, .legacy-grid { grid-template-columns: 1fr; }
  .front-runner-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .site-header { padding: 12px 16px; }
  .hero { padding: 50px 18px 32px; }
  .content { padding: 18px; }
  .panel { padding: 18px; }
  .filters { flex-direction: column; }
  .metric-grid, .gate-grid, .front-runner-grid, .grade-strip { grid-template-columns: 1fr; }
}