:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --paper: #ffffff;
  --ink: #162231;
  --muted: #667386;
  --line: #dce3ec;
  --navy: #12304a;
  --blue: #1668c7;
  --green: #2e7d55;
  --amber: #b66a19;
  --shadow: 0 10px 28px rgba(18, 48, 74, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

a { color: inherit; }

#app {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 18px 14px 40px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: end;
  padding: 22px 0 16px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.1;
  letter-spacing: 0;
}

.summary {
  max-width: 760px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.heroStats {
  display: grid;
  grid-template-columns: repeat(2, 92px);
  gap: 10px;
}

.heroStats div,
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.heroStats div {
  padding: 12px;
}

.heroStats strong {
  display: block;
  color: var(--navy);
  font-size: 24px;
  line-height: 1;
}

.heroStats span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

.toolbar {
  position: sticky;
  top: 0;
  z-index: 2;
  padding: 14px 0;
  background: rgba(244, 246, 248, 0.94);
  backdrop-filter: blur(12px);
}

.search {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.search span {
  color: var(--muted);
  font-size: 13px;
}

input {
  min-width: 0;
  border: 0;
  outline: 0;
  font: inherit;
  color: var(--ink);
  background: transparent;
}

.filters {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 0 2px;
}

.filter {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--muted);
  min-height: 34px;
  padding: 0 12px;
  font: inherit;
  font-size: 13px;
}

.filter.active {
  border-color: var(--navy);
  background: var(--navy);
  color: white;
}

.groups {
  display: grid;
  gap: 18px;
}

.groupHead {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 12px;
  margin: 4px 0 10px;
}

.groupHead h2 {
  margin: 0;
  color: var(--navy);
  font-size: 20px;
}

.groupHead span {
  color: var(--muted);
  font-size: 12px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}

.card {
  display: grid;
  gap: 12px;
  padding: 14px;
}

.cardTop {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: start;
}

.version {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 9px;
  border-radius: 999px;
  color: white;
  background: var(--blue);
  font-size: 12px;
  white-space: nowrap;
}

.version.detail { background: var(--green); }
.version.single { background: var(--amber); }

.title {
  margin: 0;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.45;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  color: var(--blue);
  background: #fff;
  font-size: 13px;
  font-weight: 700;
}

.btn.primary {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.empty {
  padding: 22px;
  color: var(--muted);
  text-align: center;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

@media (max-width: 680px) {
  #app { padding-inline: 12px; }
  .hero { grid-template-columns: 1fr; }
  .heroStats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .toolbar { top: 0; }
}