:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-2: #edf3f8;
  --text: #17202a;
  --muted: #62717f;
  --line: #dce5ec;
  --primary: #2e7194;
  --primary-strong: #194d68;
  --aqua: #77bbdd;
  --green: #77dd77;
  --rose: #ff8899;
  --amber: #ffdd88;
  --indigo: #7777aa;
  --magenta: #ff3377;
  --shadow: 0 14px 40px rgba(22, 44, 60, 0.10);
  --radius: 8px;
  --container: 1180px;
  --font-body: "Inter", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(180deg, rgba(119, 187, 221, 0.24), transparent 360px),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px max(20px, calc((100vw - var(--container)) / 2));
  background: rgba(246, 248, 251, 0.86);
  border-bottom: 1px solid rgba(220, 229, 236, 0.78);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  color: #fff;
  background: var(--primary);
  border-radius: var(--radius);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.topnav {
  display: flex;
  gap: 8px;
}

.topnav a,
.button,
.filter-chip {
  min-height: 44px;
  border-radius: var(--radius);
}

.topnav a {
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  color: var(--muted);
  font-weight: 700;
}

.topnav a:hover {
  background: var(--surface-2);
  color: var(--text);
}

main {
  overflow: hidden;
}

.hero,
.section,
.footer {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 32px;
  align-items: end;
  min-height: 560px;
  padding: 88px 0 56px;
}

.hero__content h1 {
  max-width: 780px;
  margin: 10px 0 18px;
  font-size: clamp(42px, 8vw, 92px);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero__lead {
  max-width: 660px;
  margin: 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.65;
}

.eyebrow {
  margin: 0;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover,
.filter-chip:hover,
.archive-item:hover,
.member-card:hover,
.category-card:hover {
  transform: translateY(-2px);
}

.button:active,
.filter-chip:active {
  transform: translateY(0) scale(0.98);
}

.button--primary {
  background: var(--primary);
  color: #fff;
}

.button--ghost {
  background: var(--surface);
  color: var(--primary-strong);
  border: 1px solid var(--line);
}

.hero__panel {
  padding: 22px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(220, 229, 236, 0.88);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  background: var(--green);
  border-radius: 50%;
}

.hero__panel p {
  margin: 8px 0 18px;
  color: var(--muted);
  line-height: 1.5;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 0;
}

.metric-grid div {
  padding: 14px;
  background: var(--surface-2);
  border-radius: var(--radius);
}

.metric-grid dt {
  color: var(--muted);
  font-size: 12px;
}

.metric-grid dd {
  margin: 4px 0 0;
  font-size: 22px;
  font-weight: 900;
}

.section {
  padding: 48px 0;
}

.section--tight {
  padding-top: 10px;
}

.section__head {
  margin-bottom: 22px;
}

.section__head h2 {
  margin: 6px 0 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.12;
}

.section__head--split {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.category-grid,
.member-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
}

.category-card,
.member-card,
.archive-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 1px 0 rgba(22, 44, 60, 0.03);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.category-card {
  min-height: 142px;
  padding: 18px;
}

.category-card:hover,
.member-card:hover,
.archive-item:hover {
  border-color: rgba(46, 113, 148, 0.36);
  box-shadow: var(--shadow);
}

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

.category-card h3,
.member-card h3,
.archive-item h3 {
  margin: 0;
}

.category-card p,
.member-card p,
.archive-item p {
  color: var(--muted);
  line-height: 1.55;
}

.category-card p {
  margin: 12px 0 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  color: var(--primary-strong);
  background: #e8f3f9;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.member-card {
  padding: 18px;
}

.member-card__head {
  display: flex;
  gap: 13px;
  align-items: center;
}

.member-avatar {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  color: #fff;
  font-weight: 900;
}

.member-card dl {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 8px 12px;
  margin: 18px 0 0;
  font-size: 14px;
}

.member-card dt {
  color: var(--muted);
}

.member-card dd {
  margin: 0;
  font-weight: 700;
}

.search {
  display: grid;
  gap: 8px;
  min-width: min(360px, 100%);
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.search input {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: inherit;
  font-weight: 600;
  outline: none;
}

.search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(46, 113, 148, 0.14);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.filter-chip {
  padding: 0 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.filter-chip[aria-pressed="true"] {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.result-meta {
  min-height: 22px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.archive-list {
  display: grid;
  gap: 12px;
}

.archive-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 16px;
}

.archive-item__type {
  font-weight: 900;
}

.archive-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.archive-item__meta span {
  padding: 4px 8px;
  background: var(--surface-2);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.archive-item__link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  color: var(--primary-strong);
  background: #e8f3f9;
  border-radius: var(--radius);
  font-weight: 900;
  white-space: nowrap;
}

.sync-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.sync-flow div {
  min-height: 132px;
  padding: 18px;
  background: var(--primary-strong);
  color: #fff;
  border-radius: var(--radius);
}

.sync-flow strong,
.sync-flow span {
  display: block;
}

.sync-flow strong {
  font-size: 20px;
}

.sync-flow span {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.55;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 34px 0 46px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer p {
  margin: 0;
}

.footer a {
  font-weight: 900;
  color: var(--primary-strong);
}

@media (max-width: 820px) {
  .topnav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 58px;
  }

  .section__head--split {
    align-items: stretch;
    flex-direction: column;
  }

  .archive-item {
    grid-template-columns: 1fr;
  }

  .sync-flow {
    grid-template-columns: 1fr;
  }

  .footer {
    flex-direction: column;
  }
}