:root {
  --bg: #f6f7f8;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #0f766e;
  --accent-soft: #ecfdf5;
  --ok: #047857;
  --soon: #b45309;
  --dl: #0369a1;
  --radius: 12px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.top {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.brand-kicker {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-weight: 700;
}

h1 {
  margin: 2px 0 0;
  font-size: 22px;
  font-weight: 650;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 8px 24px 56px;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin: 16px 0 8px;
}

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

.chip {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--muted);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 13px;
}
.chip:hover { color: var(--text); }
.chip.is-on {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: #99f6e4;
}

.search input {
  width: min(280px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  outline: none;
}
.search input:focus { border-color: var(--accent); }

.count {
  color: var(--muted);
  font-size: 13px;
  min-height: 1.2em;
  margin: 8px 0 12px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 196px;
}
.card:hover { border-color: #cbd5e1; }

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}

.card h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 650;
}

.badge {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  white-space: nowrap;
  font-weight: 600;
  background: #f3f4f6;
  color: var(--muted);
}
.badge.online { background: #ecfdf5; color: var(--ok); }
.badge.soon { background: #fffbeb; color: var(--soon); }
.badge.download { background: #f0f9ff; color: var(--dl); }

.desc {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
  flex: 1;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  font-size: 11px;
  color: var(--muted);
  background: #f3f4f6;
  border-radius: 4px;
  padding: 2px 7px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
}
.btn:hover { filter: brightness(1.05); }
.btn.is-off {
  background: #f3f4f6;
  border-color: var(--line);
  color: #9ca3af;
  cursor: not-allowed;
  pointer-events: none;
}
.btn.ghost {
  background: #fff;
  color: var(--dl);
  border-color: #bae6fd;
}

.empty, .error {
  text-align: center;
  color: var(--muted);
  padding: 40px 12px;
}
.error { color: #b91c1c; }
.hidden { display: none; }

footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px 32px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

@media (max-width: 640px) {
  .search input { width: 100%; }
}