:root {
  --bg-color: #faf5ff;
  --card-bg: #ffffff;
  --text-color: #1f2937;
  --text-secondary: #6b7280;
  --accent: #7c3aed;
  --accent2: #8b5cf6;
  --border-color: #e5e7eb;
  --shadow: 0 4px 12px rgba(0,0,0,0.05);
  --shadow-hover: 0 10px 30px rgba(0,0,0,0.1);
}
[data-theme="dark"] {
  --bg-color: #1a0a2e;
  --card-bg: #2d1b4e;
  --text-color: #f9fafb;
  --text-secondary: #9ca3af;
  --border-color: #374151;
  --shadow: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-hover: 0 10px 30px rgba(0,0,0,0.6);
}
* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* Header */
.site-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  position: sticky; top:0; z-index:100;
  backdrop-filter: blur(10px);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 16px; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.logo { font-size: 28px; }
.site-title {
  font-size: 18px; font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.header-actions { display: flex; align-items: center; gap: 10px; flex:1; max-width: 480px; }
.search-box {
  flex:1;
  padding: 8px 14px;
  border: 1px solid var(--border-color);
  border-radius: 22px;
  background: var(--bg-color);
  color: var(--text-color);
  outline: none;
  transition: all 0.2s;
  font-size: 14px;
}
.search-box:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
.theme-btn {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  cursor: pointer;
  font-size: 18px;
  transition: transform 0.2s;
  flex-shrink: 0;
}
.theme-btn:hover { transform: rotate(20deg); }

/* Category Nav */
.category-nav {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cat-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}
.cat-scroll::-webkit-scrollbar { height: 4px; }
.cat-btn {
  flex-shrink: 0;
  padding: 6px 16px;
  border-radius: 18px;
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  color: var(--text-color);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
  white-space: nowrap;
}
.cat-btn:hover { border-color: var(--accent); color: var(--accent); }
.cat-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border-color: transparent;
}
.header-stats {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: right;
}
.header-stats b { color: var(--accent); }

/* Main */
.main-area { padding: 20px 16px 40px; }
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 18px;
  cursor: pointer;
  transition: all 0.25s;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  opacity: 0;
  transition: opacity 0.25s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent);
}
.card:hover::before { opacity: 1; }
.card-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-color);
}
.card-cat {
  display: inline-block;
  font-size: 11px;
  padding: 2px 10px;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--accent);
  border-radius: 10px;
  width: fit-content;
}
.card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  font-size: 11px;
  padding: 2px 8px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-secondary);
}
.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px dashed var(--border-color);
}
.rating {
  display: flex;
  align-items: center;
  gap: 4px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 700;
}
.views { display: flex; align-items: center; gap: 4px; }

/* Empty */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-secondary);
}
.empty-icon { font-size: 64px; margin-bottom: 16px; }
.empty-title { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--text-color); }

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
}
.modal-content {
  position: relative;
  background: var(--card-bg);
  border-radius: 20px;
  max-width: 800px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 30px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  animation: popin 0.25s ease;
}
@keyframes popin {
  from { opacity:0; transform: scale(0.95) translateY(20px); }
  to { opacity:1; transform: scale(1) translateY(0); }
}
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: none;
  background: var(--bg-color);
  color: var(--text-color);
  font-size: 16px;
  cursor: pointer;
  z-index: 2;
}
.modal-close:hover { background: color-mix(in srgb, var(--accent) 15%, transparent); }
.modal-content::-webkit-scrollbar { width: 6px; }
.modal-content::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

.detail-header {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}
.detail-title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.3;
}
.detail-rating-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin: 12px 0;
}
.detail-rating-big {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  padding: 8px 20px;
  border-radius: 14px;
  font-size: 22px;
  font-weight: 800;
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
}
.detail-rating-big small { font-size: 12px; opacity: 0.8; }
.detail-kv {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px 20px;
  padding: 16px 0;
}
.kv-item {
  display: flex;
  gap: 8px;
  font-size: 13px;
  align-items: baseline;
}
.kv-key {
  color: var(--text-secondary);
  font-weight: 500;
  flex-shrink: 0;
  min-width: 70px;
}
.kv-value {
  color: var(--text-color);
  font-weight: 600;
  word-break: break-word;
}
.detail-section {
  margin: 18px 0;
}
.section-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 10px;
  padding-left: 10px;
  border-left: 4px solid var(--accent);
  color: var(--text-color);
}
.section-content {
  font-size: 14px;
  line-height: 1.8;
  padding: 12px 16px;
  background: var(--bg-color);
  border-radius: 10px;
  white-space: pre-wrap;
  word-break: break-word;
}
.code-block {
  background: #0f172a;
  color: #e2e8f0;
  padding: 16px;
  border-radius: 10px;
  font-family: "SF Mono", "Consolas", monospace;
  font-size: 13px;
  line-height: 1.6;
  overflow-x: auto;
  margin: 10px 0;
}
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.pros, .cons {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.8;
}
.pros { background: rgba(16,185,129,0.08); border: 1px solid rgba(16,185,129,0.2); }
.cons { background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.2); }
.pros-title { color: #059669; font-weight: 700; margin-bottom: 6px; }
.cons-title { color: #dc2626; font-weight: 700; margin-bottom: 6px; }

/* Responsive */
@media (max-width: 768px) {
  .header-inner { flex-direction: column; gap: 12px; align-items: stretch; }
  .header-actions { max-width: none; }
  .site-title { font-size: 16px; }
  .card-grid { grid-template-columns: 1fr; gap: 14px; }
  .modal-content { padding: 20px; max-height: 92vh; }
  .detail-title { font-size: 20px; }
  .pros-cons { grid-template-columns: 1fr; }
}
@media (min-width: 769px) and (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}