:root {
  --bg: #0a1520;
  --bg-elev: #0f1c2a;
  --card: #132333;
  --card-hover: #183046;
  --text: #e8f4fc;
  --muted: #8eabc0;
  --faint: #5f7d93;
  --accent: #2AABEE;
  --accent-2: #229ED9;
  --accent-soft: rgba(42, 171, 238, 0.15);
  --border: #1e3548;
  --ok: #34d399;
  --channel: #38bdf8;
  --bot: #a78bfa;
  --group: #34d399;
  --app: #fbbf24;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background:
    radial-gradient(1100px 560px at 8% -12%, rgba(42,171,238,.20), transparent 58%),
    radial-gradient(900px 500px at 100% 0%, rgba(34,158,217,.10), transparent 50%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}
a { color: var(--accent); }
img { max-width: 100%; }

.wrap { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(12px);
  background: rgba(10,21,32,.78);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .9rem 0;
}
.brand { display: flex; align-items: center; gap: .7rem; text-decoration: none; color: inherit; }
.logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, #2AABEE, #1a8bc4);
  display: grid; place-items: center; font-weight: 800; color: #041018;
  box-shadow: 0 0 0 3px rgba(42,171,238,.22);
  font-size: .85rem; letter-spacing: .02em;
}
.brand-text strong { display: block; font-size: 1rem; letter-spacing: .2px; }
.brand-text span { display: block; font-size: .75rem; color: var(--muted); }
.nav-links { display: flex; gap: .9rem; flex-wrap: wrap; font-size: .9rem; }
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: var(--text); }

.hero { padding: 2.4rem 0 1.2rem; }
.hero h1 {
  margin: 0 0 .55rem;
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  letter-spacing: -.02em;
}
.hero .lead { margin: 0; color: var(--muted); max-width: 62ch; }
.hero .zh { margin: .4rem 0 0; color: var(--faint); font-size: .95rem; }
.stats {
  display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.1rem;
}
.stat {
  background: var(--accent-soft);
  border: 1px solid rgba(42,171,238,.28);
  color: #b8e7ff;
  padding: .35rem .7rem;
  border-radius: 999px;
  font-size: .82rem;
}

.toolbar {
  display: grid; gap: .85rem;
  margin: 1rem 0 1.25rem;
  position: sticky; top: 64px; z-index: 30;
  padding: .85rem 0 .4rem;
  background: linear-gradient(var(--bg) 70%, transparent);
}
.search-row { display: flex; gap: .65rem; flex-wrap: wrap; }
.search-box {
  flex: 1 1 280px;
  display: flex; align-items: center; gap: .5rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .7rem .9rem;
}
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(42,171,238,.15); }
.search-box input {
  width: 100%; border: 0; outline: 0; background: transparent;
  color: var(--text); font-size: 1rem;
}
.ghost-btn {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  border-radius: 12px;
  padding: .7rem .95rem;
  cursor: pointer;
  font: inherit;
}
.ghost-btn:hover { border-color: var(--accent); }
.chips {
  display: flex; flex-wrap: wrap; gap: .45rem;
}
.chip {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  border-radius: 999px;
  padding: .38rem .75rem;
  font-size: .82rem;
  cursor: pointer;
}
.chip:hover { color: var(--text); border-color: #2d4a61; }
.chip.active {
  background: var(--accent-soft);
  border-color: rgba(42,171,238,.5);
  color: #b8e7ff;
}
.meta-row {
  display: flex; justify-content: space-between; align-items: center;
  gap: .75rem; flex-wrap: wrap;
  color: var(--muted); font-size: .85rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: .9rem;
  margin-bottom: 2rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.05rem 1.05rem;
  display: flex; flex-direction: column; gap: .55rem;
  min-height: 168px;
  transition: border-color .15s, transform .15s, background .15s;
  position: relative;
}
.card:hover {
  border-color: rgba(42,171,238,.5);
  background: var(--card-hover);
  transform: translateY(-1px);
}
.card-top { display: flex; justify-content: space-between; gap: .5rem; align-items: flex-start; }
.card h2 {
  margin: 0; font-size: 1.02rem; letter-spacing: -.01em;
  padding-right: 1.6rem;
}
.card p {
  margin: 0; color: var(--muted); font-size: .88rem; flex: 1;
}
.badges { display: flex; flex-wrap: wrap; gap: .3rem; }
.badge {
  font-size: .7rem; font-weight: 600; letter-spacing: .02em;
  padding: .18rem .45rem; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted);
}
.badge.channel { color: var(--channel); border-color: rgba(56,189,248,.35); background: rgba(56,189,248,.08); }
.badge.bot { color: var(--bot); border-color: rgba(167,139,250,.35); background: rgba(167,139,250,.08); }
.badge.group { color: var(--group); border-color: rgba(52,211,153,.35); background: rgba(52,211,153,.08); }
.badge.app { color: var(--app); border-color: rgba(251,191,36,.35); background: rgba(251,191,36,.08); }
.tags { display: flex; flex-wrap: wrap; gap: .3rem; }
.tag {
  font-size: .72rem; color: var(--faint);
  background: rgba(142,171,192,.08);
  border-radius: 6px; padding: .12rem .4rem;
}
.card-actions {
  display: flex; justify-content: space-between; align-items: center; gap: .5rem; margin-top: .2rem;
}
.visit {
  display: inline-flex; align-items: center; gap: .35rem;
  text-decoration: none; color: #b8e7ff; font-size: .88rem; font-weight: 600;
}
.visit:hover { color: #fff; }
.star {
  border: 0; background: transparent; color: var(--faint);
  cursor: pointer; font-size: 1.15rem; line-height: 1; padding: .15rem;
}
.star.on { color: #fbbf24; }
.star:hover { color: #fde68a; }

.empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.callout {
  background: linear-gradient(180deg, rgba(42,171,238,.12), rgba(19,35,51,.6));
  border: 1px solid rgba(42,171,238,.32);
  border-radius: var(--radius);
  padding: 1.15rem 1.2rem;
  margin: 0 0 1.75rem;
}
.callout h2 { margin: 0 0 .35rem; font-size: 1.1rem; }
.callout p { margin: 0; color: var(--muted); font-size: .9rem; }
.callout .disc { margin-top: .55rem; font-size: .78rem; color: var(--faint); }
.aff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: .75rem;
  margin-top: .9rem;
}
.aff-card {
  display: block; text-decoration: none; color: inherit;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: .9rem 1rem;
}
.aff-card:hover { border-color: var(--accent); }
.aff-card strong { display: block; color: var(--accent); margin-bottom: .25rem; }
.aff-card span { color: var(--muted); font-size: .85rem; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2.2rem;
  color: var(--muted); font-size: .85rem;
}
.site-footer a { color: var(--accent); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-row { display: flex; flex-wrap: wrap; gap: .75rem 1.1rem; justify-content: space-between; }

.page { padding: 2rem 0 3rem; max-width: 720px; }
.page h1 { margin-top: 0; }
.page p, .page li { color: var(--muted); }

.policy-note {
  margin: 0 0 1.25rem;
  padding: .85rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(42,171,238,.25);
  background: rgba(42,171,238,.06);
  color: var(--muted);
  font-size: .88rem;
}

@media (max-width: 560px) {
  .nav-links { display: none; }
  .card { min-height: 0; }
  .toolbar { top: 58px; }
}