:root {
  --bg: #eef3f7;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-strong: #ffffff;
  --surface-tint: rgba(13, 71, 161, 0.06);
  --ink: #102033;
  --muted: #5c6e80;
  --line: rgba(16, 32, 51, 0.12);
  --line-strong: rgba(16, 32, 51, 0.2);
  --accent: #0f5fa8;
  --accent-strong: #0a3f72;
  --accent-soft: rgba(15, 95, 168, 0.1);
  --warm: #c67a19;
  --warm-soft: rgba(198, 122, 25, 0.12);
  --shadow: 0 18px 50px rgba(15, 32, 51, 0.08);
  --shadow-soft: 0 10px 24px rgba(15, 32, 51, 0.06);
  --font-sans: "IBM Plex Sans", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", monospace;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at top left, rgba(15, 95, 168, 0.18), transparent 30rem),
    radial-gradient(circle at right 15%, rgba(198, 122, 25, 0.12), transparent 18rem),
    linear-gradient(180deg, #f7fafc 0%, var(--bg) 100%);
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  font-family: var(--font-mono);
}

.shell {
  width: min(1180px, calc(100vw - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 250, 252, 0.88);
  backdrop-filter: blur(20px);
}

.header-bar,
.nav-row,
.footer-grid,
.hero,
.content-columns,
.home-columns {
  display: grid;
  gap: 1rem;
}

.header-bar {
  grid-template-columns: auto 1fr;
  align-items: center;
  padding: 0.95rem 0;
}

.brand-lockup,
.footer-brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
}

.brand-lockup:hover,
.footer-brand-lockup:hover {
  text-decoration: none;
}

.brand-mark,
.hero-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.95rem;
  background:
    linear-gradient(135deg, rgba(15, 95, 168, 0.16), rgba(15, 95, 168, 0.94)),
    linear-gradient(135deg, rgba(198, 122, 25, 0.2), transparent);
  color: white;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.brand-text,
.hero-lockup > div {
  display: grid;
  gap: 0.12rem;
  min-width: 0;
}

.brand-text strong {
  color: var(--ink);
  font-size: 1.1rem;
}

.brand-text span {
  color: var(--muted);
  font-size: 0.88rem;
}

.header-nav-group {
  display: grid;
  justify-items: end;
  gap: 0.55rem;
}

.main-nav,
.utility-nav,
.family-nav,
.footer-links,
.search-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.main-nav a,
.utility-nav a,
.family-nav a,
.search-tags a,
.footer-links a,
.search-link {
  padding: 0.48rem 0.8rem;
  border-radius: 999px;
  transition:
    background-color 140ms ease,
    color 140ms ease,
    border-color 140ms ease;
}

.main-nav a,
.utility-nav a,
.family-nav a,
.footer-links a {
  color: var(--ink);
}

.main-nav a.active,
.main-nav a:hover,
.utility-nav a.active,
.utility-nav a:hover,
.family-nav a:hover,
.footer-links a:hover {
  background: var(--accent-soft);
  text-decoration: none;
}

.utility-nav {
  font-size: 0.92rem;
}

.header-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.55rem;
}

.search-link {
  border: 1px solid rgba(15, 95, 168, 0.18);
  background: white;
  color: var(--accent-strong);
}

.search-link:hover {
  background: var(--accent-soft);
  text-decoration: none;
}

.nav-row {
  grid-template-columns: auto 1fr;
  align-items: center;
  padding: 0 0 0.9rem;
}

.family-strip {
  font-size: 0.95rem;
}

.family-strip-label {
  color: var(--muted);
  font-weight: 600;
}

.page {
  padding: 1.6rem 0 3.5rem;
}

.hero,
.panel,
.article,
.content-section,
.card {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel,
.article {
  padding: 1.35rem;
}

.hero {
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.85fr);
  align-items: stretch;
  padding: 1.6rem;
}

.hero-copy-block {
  display: grid;
  align-content: start;
  gap: 1rem;
}

.hero-lockup {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
}

.hero-mark {
  width: 4.25rem;
  height: 4.25rem;
  border-radius: 1.3rem;
  font-size: 1.2rem;
}

.page-intro {
  margin-bottom: 1.15rem;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.breadcrumbs a {
  color: var(--muted);
}

.breadcrumb-sep {
  opacity: 0.7;
}

.eyebrow,
.card-kicker {
  margin: 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
}

h1,
h2,
h3 {
  margin: 0 0 0.7rem;
  line-height: 1.14;
}

h1 {
  font-size: clamp(2rem, 4.7vw, 3.35rem);
}

h2 {
  font-size: 1.24rem;
}

h3 {
  font-size: 1.05rem;
}

p,
li {
  line-height: 1.68;
}

.hero-copy,
.page-intro p,
.section-heading p,
.local-nav p {
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.8rem 1rem;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  cursor: pointer;
}

.button:hover {
  background: var(--accent-strong);
  text-decoration: none;
}

.button-secondary {
  background: white;
  color: var(--accent-strong);
  border: 1px solid rgba(15, 95, 168, 0.18);
}

.button-secondary:hover {
  background: var(--accent-soft);
}

.section-heading {
  margin-bottom: 1rem;
}

.home-panel {
  margin-top: 1rem;
}

.card-grid,
.compact-grid,
.family-entry-grid,
.chip-sections-stack,
.content-stack,
.split-grid {
  display: grid;
  gap: 1rem;
}

.card-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.compact-grid {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.home-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1rem;
}

.split-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.card {
  padding: 1rem;
  box-shadow: var(--shadow-soft);
}

.card p,
.card-meta,
.chip-meta,
.empty-state {
  color: var(--muted);
}

.card-kicker {
  margin-bottom: 0.55rem;
}

.content-columns {
  grid-template-columns: 280px minmax(0, 1fr);
  align-items: start;
}

.content-stack {
  min-width: 0;
}

.family-entry-grid {
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.content-section {
  padding: 1.15rem 1.2rem;
}

.content-section-placeholder {
  border-style: dashed;
  background: rgba(255, 255, 255, 0.74);
}

.section-status {
  display: inline-flex;
  align-items: center;
  margin-bottom: 0.65rem;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  background: var(--warm-soft);
  color: var(--warm);
  font-size: 0.82rem;
  font-weight: 600;
}

.local-nav {
  position: sticky;
  top: 6.8rem;
}

.local-nav-compact {
  padding: 1.15rem;
}

.local-nav-links {
  display: grid;
  gap: 0.55rem;
}

.local-nav-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.72rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--ink);
}

.local-nav-links a:hover {
  background: var(--surface-tint);
  text-decoration: none;
}

.local-nav-links a.muted {
  color: var(--muted);
}

.local-nav-badge {
  flex: none;
  padding: 0.18rem 0.5rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.76rem;
  font-weight: 600;
}

.search-panel {
  display: grid;
  gap: 0.95rem;
  padding: 1.25rem;
  border-radius: 24px;
  border: 1px solid rgba(15, 95, 168, 0.12);
  background:
    linear-gradient(180deg, rgba(15, 95, 168, 0.08), rgba(255, 255, 255, 0.9)),
    white;
}

.search-panel-compact {
  margin-bottom: 1.25rem;
}

.search-panel-head p,
.search-panel-head h2 {
  margin-bottom: 0.45rem;
}

.search-panel-head p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.search-label {
  font-size: 0.92rem;
  font-weight: 600;
}

.search-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem;
}

.search-row input {
  width: 100%;
  min-height: 2.95rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--surface-strong);
  color: var(--ink);
  font: inherit;
}

.search-row input:focus {
  outline: 2px solid rgba(15, 95, 168, 0.18);
  outline-offset: 2px;
}

.search-results {
  display: grid;
  gap: 0.7rem;
}

.search-hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.search-result {
  display: grid;
  gap: 0.18rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(15, 95, 168, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
}

.search-result:hover {
  background: white;
  text-decoration: none;
}

.search-result-meta {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
}

.search-result span:last-child {
  color: var(--muted);
  font-size: 0.92rem;
}

.search-tags a {
  border: 1px solid rgba(15, 95, 168, 0.16);
  background: rgba(255, 255, 255, 0.82);
}

.search-tags a:hover {
  background: white;
  text-decoration: none;
}

.site-footer {
  padding: 0 0 2.5rem;
}

.footer-grid {
  grid-template-columns: 1.3fr 1fr 1fr;
  align-items: start;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.78);
}

.footer-brand p {
  color: var(--muted);
  margin: 0.35rem 0 0;
}

.panel-nested {
  box-shadow: none;
  background: rgba(255, 255, 255, 0.78);
}

@media (max-width: 980px) {
  .hero,
  .content-columns,
  .home-columns,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .local-nav {
    position: static;
  }

  .header-bar {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .header-nav-group {
    justify-items: start;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100vw - 1rem, 100%);
  }

  .page {
    padding-top: 1.1rem;
  }

  .hero,
  .panel,
  .article,
  .content-section,
  .card {
    border-radius: 22px;
  }

  .hero {
    padding: 1.2rem;
  }

  .hero-lockup {
    grid-template-columns: 1fr;
  }

  .hero-mark {
    width: 3.4rem;
    height: 3.4rem;
  }

  .nav-row,
  .search-row {
    grid-template-columns: 1fr;
  }

  .button,
  .search-link {
    width: 100%;
  }

  .header-tools {
    width: 100%;
    justify-content: flex-start;
  }
}