:root {
  --bg: #0f1115;
  --panel: #171a21;
  --border: #262b36;
  --text: #e6e9ef;
  --muted: #9aa3b2;
  --accent: #4f8cff;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 18px 20px;
  background: rgba(15, 17, 21, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.brand-logo {
  display: block;
  height: 26px;
  width: auto;
}

.brand-divider {
  width: 1px;
  height: 18px;
  background: var(--border);
  flex: none;
}

.topbar h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

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

#search {
  flex: 1;
  max-width: 520px;
  padding: 10px 14px;
  font-size: 15px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
}

#search:focus { border-color: var(--accent); }

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

main { padding: 20px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  padding: 6px;
}

.card h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  word-break: break-all;
}

.card .meta {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.card .dl {
  margin-top: auto;
  align-self: flex-start;
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 8px;
}

.card .dl:hover { border-color: var(--accent); }

.empty, .error {
  color: var(--muted);
  text-align: center;
  padding: 40px 0;
}

.footer {
  padding: 16px 20px 28px;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--border);
}