/* ===== 基础 ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0c0c12;
  --bg-2: #14141c;
  --card: #1c1c26;
  --card-hover: #25253a;
  --border: #2a2a3a;
  --text: #f0f0f5;
  --text-2: #b2b2be;
  --text-3: #7a7a8a;
  --accent: #6c8cff;
  --accent-2: #a78bfa;
  --radius: 14px;
  --gap: 18px;
}

html, body {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Roboto, sans-serif;
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(12, 12, 18, 0.7);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font-size: 14px;
}
.nav { display: flex; gap: 6px; flex: 1; }
.nav a {
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--text-2);
  transition: background 0.15s, color 0.15s;
}
.nav a:hover { background: var(--card); color: var(--text); }
.nav a.active { background: var(--card-hover); color: var(--text); }
.repo-link { color: var(--text-2); font-size: 14px; }
.repo-link:hover { color: var(--accent); }

/* ===== 容器 ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 36px 24px 64px;
}

/* ===== Hero ===== */
.hero h1 {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 0%, #b2b2be 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p {
  margin-top: 10px;
  color: var(--text-2);
  font-size: 16px;
  max-width: 720px;
}
.stat-bar {
  margin-top: 16px;
  display: flex;
  gap: 12px;
  font-size: 13px;
  color: var(--text-3);
}
.stat-divider { opacity: 0.5; }

/* ===== 工具栏 ===== */
.toolbar {
  margin: 28px 0 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
}
.filter { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--card);
  color: var(--text-2);
  font-size: 13px;
  border: 1px solid var(--border);
  transition: all 0.15s;
}
.chip:hover { color: var(--text); border-color: var(--accent); }
.chip.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border-color: transparent;
}
.search input {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  width: 240px;
  transition: border-color 0.15s, width 0.2s;
}
.search input:focus { outline: none; border-color: var(--accent); width: 280px; }

/* ===== 网格 ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--gap);
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 8px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: transform 0.18s, background 0.18s, border-color 0.18s;
  position: relative;
}
.card:hover {
  transform: translateY(-3px);
  background: var(--card-hover);
  border-color: var(--accent);
}
.card-thumb {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 10px;
  overflow: hidden;
}
.card-thumb img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.card-name {
  font-size: 12px;
  color: var(--text-2);
  text-align: center;
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}
.card-cat {
  position: absolute;
  top: 6px;
  right: 6px;
  font-size: 10px;
  color: var(--text-3);
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: 6px;
}

/* ===== 空状态 ===== */
.empty {
  text-align: center;
  padding: 64px 0;
  color: var(--text-3);
}
.hidden { display: none; }

/* ===== 预览弹窗 ===== */
.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 100;
}
.modal.hidden {
  display: none;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
}
.modal-panel {
  position: relative;
  z-index: 2;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 32px;
  width: min(420px, calc(100vw - 32px));
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: pop 0.2s ease-out;
}
@keyframes pop {
  from { transform: scale(0.94); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.modal-close {
  position: absolute;
  top: 10px;
  right: 14px;
  font-size: 26px;
  color: var(--text-3);
  width: 32px;
  height: 32px;
  border-radius: 50%;
}
.modal-close:hover { background: var(--card); color: var(--text); }
.modal-icon {
  width: 180px;
  height: 180px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 16px;
  padding: 16px;
}
.modal-icon img { max-width: 100%; max-height: 100%; }
.modal-title { font-size: 18px; font-weight: 600; }
.modal-meta { font-size: 13px; color: var(--text-3); }
.modal-actions { display: flex; gap: 10px; }
.btn {
  padding: 8px 18px;
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  font-size: 13px;
  border: 1px solid var(--border);
  transition: all 0.15s;
}
.btn:hover { border-color: var(--accent); }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
}

/* ===== 页脚 ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
}

/* ===== 响应式 ===== */
@media (max-width: 640px) {
  .hero h1 { font-size: 28px; }
  .nav { display: none; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .search input { width: 100%; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); }
}