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

:root {
  --bg: #0e0f13;
  --bg2: #16181f;
  --card: #1c1f28;
  --text: #e8eaf0;
  --sub: #8a8f9c;
  --accent: #ff5c8a;
  --accent2: #b388ff;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  min-height: 100vh;
}

/* 顶栏 */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 15, 19, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.logo {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.logo span { color: var(--accent); }

.nav { display: flex; gap: 6px; flex-wrap: wrap; }

.nav a {
  color: var(--sub);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 14px;
  transition: all 0.2s;
  cursor: pointer;
}

.nav a:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.nav a.active { color: #fff; background: var(--accent); }

.search-box { margin-left: auto; }

.search-box input {
  background: var(--bg2);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  width: 200px;
  outline: none;
  transition: all 0.2s;
}

.search-box input:focus {
  border-color: var(--accent);
  width: 260px;
}

/* 主区 */
.main { max-width: 1400px; margin: 0 auto; padding: 24px; }

.stats { color: var(--sub); font-size: 13px; margin-bottom: 16px; }
.stats b { color: var(--accent); }

/* 瀑布流 */
.masonry {
  columns: 5 240px;
  column-gap: 16px;
}

.card {
  break-inside: avoid;
  margin-bottom: 16px;
  background: var(--card);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.card img {
  width: 100%;
  display: block;
  background: var(--bg2);
}

.card .card-info {
  padding: 10px 12px;
}

.card .card-title {
  font-size: 13px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card .card-cat {
  font-size: 11px;
  color: var(--accent);
  margin-top: 4px;
}

.card .tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 10px;
  backdrop-filter: blur(4px);
}

/* 加载更多 */
.load-more { text-align: center; padding: 24px 0 40px; }

.btn {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border: none;
  padding: 10px 32px;
  border-radius: 22px;
  font-size: 14px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn:hover { opacity: 0.85; }
.no-more { color: var(--sub); font-size: 13px; }

/* 灯箱 */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(5, 6, 8, 0.94);
  backdrop-filter: blur(6px);
}

.lightbox.open { display: flex; align-items: center; justify-content: center; }

.lightbox img {
  max-width: 88vw;
  max-height: 84vh;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.8);
  object-fit: contain;
}

.lb-topbar {
  position: absolute;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
}

.lb-title { color: var(--text); font-size: 15px; }

.lb-close {
  background: rgba(255,255,255,0.1);
  border: none;
  color: #fff;
  width: 36px; height: 36px;
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
}

.lb-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.08);
  border: none;
  color: #fff;
  font-size: 40px;
  width: 56px; height: 72px;
  cursor: pointer;
  border-radius: 8px;
  transition: background 0.2s;
  line-height: 1;
}

.lb-arrow:hover { background: var(--accent); }
.lb-prev { left: 16px; }
.lb-next { right: 16px; }

.lb-info {
  position: absolute;
  bottom: 18px;
  left: 0; right: 0;
  text-align: center;
  color: var(--sub);
  font-size: 12px;
}

/* 页脚 */
.footer {
  text-align: center;
  color: var(--sub);
  font-size: 12px;
  padding: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* 响应式 */
@media (max-width: 640px) {
  .search-box { margin-left: 0; width: 100%; }
  .search-box input { width: 100%; }
  .masonry { columns: 2 150px; }
}