/* 活色生香 · 共生文库 — 黑底雅黑主题 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@300;400;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
  --bg: #000000;
  --bg-warm: #080706;
  --bg-card: #15120f;
  --bg-hover: #1c1814;
  --text: #f7efe8;
  --text2: #d8cfc7;
  --text3: #b9aa9c;
  --muted: #a09589;
  --gold: #b8943e;
  --gold-light: #d4a853;
  --gold-soft: rgba(216,184,141,0.13);
  --gold-border: rgba(216,184,141,0.34);
  --accent-cn: #c9704a;
  --accent-jp: #c9607a;
  --accent-west: #4a7ac9;
  --accent-theory: #4a9a70;
  --accent-modern: #9a60c9;
  --border: rgba(243, 236, 228, 0.16);
  --border-light: rgba(243, 236, 228, 0.10);
  --shadow: 0 16px 42px rgba(0,0,0,0.42);
  --shadow-hover: 0 22px 56px rgba(0,0,0,0.58);
  --radius: 12px;
  --max-w: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans SC', -apple-system, 'PingFang SC', sans-serif;
  font-size: 15px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(184,148,62,0.15); }

/* === Typography === */
h1, h2, h3, h4 { font-family: 'Noto Serif SC', serif; color: var(--text); line-height: 1.5; }
h1 { font-size: 28px; font-weight: 700; letter-spacing: 2px; }
h2 { font-size: 22px; font-weight: 600; letter-spacing: 1px; margin: 32px 0 16px; }
h3 { font-size: 17px; font-weight: 600; margin: 24px 0 12px; }
p { margin-bottom: 14px; color: var(--text2); }
strong { color: var(--text); font-weight: 600; }
em { font-style: italic; color: var(--text3); }

a { color: var(--gold); text-decoration: none; transition: color .2s; }
a:hover { color: var(--gold-light); }

blockquote {
  border-left: 3px solid var(--gold);
  background: var(--gold-soft);
  padding: 14px 20px;
  margin: 16px 0;
  border-radius: 0 8px 8px 0;
  font-family: 'Noto Serif SC', serif;
  font-style: italic;
  color: var(--text2);
  line-height: 2;
}

code {
  background: var(--gold-soft);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--gold);
}

hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 32px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}
th {
  background: var(--gold-soft);
  color: var(--gold);
  font-weight: 600;
  padding: 10px 14px;
  border: 1px solid var(--border);
  text-align: left;
  font-family: 'Noto Serif SC', serif;
}
td {
  padding: 10px 14px;
  border: 1px solid var(--border-light);
  color: var(--text2);
}
tr:hover td { background: var(--bg-warm); }

ul, ol { padding-left: 24px; margin: 12px 0; }
li { margin: 6px 0; color: var(--text2); }

/* === Navigation === */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  padding: 0 24px;
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 56px;
  gap: 24px;
}
.nav-brand {
  font-family: 'Noto Serif SC', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 3px;
  white-space: nowrap;
}
.nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.nav-link {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text3);
  white-space: nowrap;
  transition: all .2s;
  letter-spacing: 1px;
}
.nav-link:hover { background: var(--bg-warm); color: var(--text); }
.nav-link.active { background: var(--gold-soft); color: var(--gold); font-weight: 500; }

.nav-home {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 16px;
  color: var(--text3);
  transition: all .2s;
}
.nav-home:hover { background: var(--bg-warm); color: var(--gold); }

/* === Banner === */
.banner {
  position: relative;
  padding: 60px 24px 48px;
  text-align: center;
  overflow: hidden;
  background: var(--bg-warm);
}
.banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 100%;
  background: radial-gradient(ellipse at center top, rgba(184,148,62,0.06) 0%, transparent 70%);
}
.banner-c { position: relative; z-index: 1; max-width: var(--max-w); margin: 0 auto; }
.banner .icon { font-size: 36px; margin-bottom: 12px; display: inline-block; }
.banner h1 { margin-bottom: 6px; }
.banner .sub {
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 4px;
  font-weight: 300;
}
.banner .desc {
  max-width: 600px;
  margin: 16px auto 0;
  font-size: 14px;
  color: var(--text3);
  line-height: 2;
}

/* === Content Container === */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* === Search === */
.search-wrap {
  max-width: 560px;
  margin: 0 auto 24px;
  position: relative;
}
.search-wrap input {
  width: 100%;
  padding: 12px 18px 12px 44px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: border-color .3s, box-shadow .3s;
}
.search-wrap input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(184,148,62,0.08);
}
.search-wrap input::placeholder { color: var(--muted); }
.search-wrap .icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 15px;
  pointer-events: none;
}

/* === Tag Filter === */
.tags-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
  padding: 0 24px;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
}
.tag-btn {
  padding: 5px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text3);
  font-size: 12px;
  cursor: pointer;
  transition: all .2s;
  font-family: inherit;
  letter-spacing: 0.5px;
}
.tag-btn:hover { border-color: var(--gold-border); color: var(--gold); background: var(--gold-soft); }
.tag-btn.active { border-color: var(--gold); color: var(--gold); background: var(--gold-soft); font-weight: 500; }

/* === Stats === */
.stats-row {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin: 20px 0 0;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-item .n {
  font-family: 'Noto Serif SC', serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--gold);
  display: block;
}
.stat-item .l {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 2px;
  margin-top: 2px;
}

/* === Card Grid === */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

/* === Card === */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .35s;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--gold-border);
}
.card-accent { height: 3px; }
.card-accent.cn { background: var(--accent-cn); }
.card-accent.jp { background: var(--accent-jp); }
.card-accent.west { background: var(--accent-west); }
.card-accent.theory { background: var(--accent-theory); }
.card-accent.modern { background: var(--accent-modern); }

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.card-body { padding: 18px 20px 16px; }
.card-title {
  font-family: 'Noto Serif SC', serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  line-height: 1.5;
}
.card-author {
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.card-desc {
  font-size: 13px;
  color: var(--text3);
  line-height: 1.9;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-tags {
  display: flex;
  gap: 5px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.card-tag {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--gold-soft);
  color: var(--gold);
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all .2s;
  border: none;
  font-family: inherit;
}
.card-tag:hover { background: var(--gold-border); }
.card-meta {
  display: flex;
  gap: 14px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
}
.card-meta span {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 1px;
}

/* === Category Hub === */
.hub-intro {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 32px;
  box-shadow: var(--shadow);
}
.hub-intro h2 { margin-top: 0; color: var(--gold); }
.hub-intro p { font-size: 14px; line-height: 2; }
.hub-gallery {
  display: flex;
  gap: 12px;
  margin: 20px 0;
  overflow-x: auto;
  padding-bottom: 8px;
}
.hub-gallery img {
  height: 160px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
}

/* === Detail Page === */
.detail-header {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}
.detail-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 16px 0;
}
.detail-meta .badge {
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12px;
  letter-spacing: 1px;
  font-weight: 500;
}
.badge-author { background: var(--gold-soft); color: var(--gold); }
.badge-era { background: var(--bg-hover); color: var(--text3); }
.badge-cat { background: var(--bg-warm); color: var(--text2); }

.detail-img {
  max-width: 480px;
  margin: 24px auto;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.detail-img img {
  width: 100%;
  display: block;
}

.detail-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px 80px;
  font-family: 'Noto Serif SC', serif;
  font-size: 15.5px;
  line-height: 2.1;
  color: var(--text2);
}
.detail-content h1 {
  font-size: 26px;
  margin: 32px 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}
.detail-content h2 {
  font-size: 20px;
  color: var(--gold);
  margin: 36px 0 16px;
}
.detail-content h3 { font-size: 16px; color: var(--text2); margin: 28px 0 12px; }
.detail-content p { margin-bottom: 16px; text-indent: 0; }
.detail-content blockquote {
  font-size: 15px;
  line-height: 2.2;
  margin: 20px 0;
  padding: 16px 24px;
}
.detail-content ul, .detail-content ol { padding-left: 28px; }
.detail-content table { font-size: 13px; }

/* === Breadcrumb === */
.breadcrumb {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px 12px;
  font-size: 12px;
  color: var(--muted);
}
.breadcrumb a { color: var(--gold); }
.breadcrumb span { margin: 0 6px; color: var(--border); }

/* === Back Link === */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--text3);
  margin: 24px 0;
  transition: all .2s;
}
.back-link:hover { background: var(--bg-warm); color: var(--gold); }

/* === Footer === */
.footer {
  text-align: center;
  padding: 40px 24px 60px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-warm);
}
.footer .quote {
  font-family: 'Noto Serif SC', serif;
  font-size: 15px;
  color: var(--text3);
  font-style: italic;
  line-height: 2.2;
  max-width: 480px;
  margin: 0 auto;
  letter-spacing: 1px;
}
.footer .credit {
  font-size: 11px;
  color: var(--muted);
  margin-top: 16px;
  letter-spacing: 3px;
}

/* === Empty State === */
.empty {
  text-align: center;
  padding: 60px 24px;
  color: var(--muted);
}
.empty .icon { font-size: 48px; margin-bottom: 16px; opacity: 0.4; }
.empty p { font-size: 14px; }

/* === Responsive === */
@media (max-width: 768px) {
  .nav-links { gap: 2px; }
  .nav-link { padding: 6px 10px; font-size: 12px; }
  .banner { padding: 40px 16px 32px; }
  .banner h1 { font-size: 22px; }
  .grid { grid-template-columns: 1fr; }
  .container { padding: 24px 16px 60px; }
  .detail-content { padding: 0 16px 60px; font-size: 14.5px; }
  .hub-intro { padding: 20px; }
  .stats-row { gap: 24px; }
}

/* === Print === */
@media print {
  .nav, .search-wrap, .tags-bar, .back-link { display: none; }
  .detail-content { max-width: 100%; }
  body { font-size: 12pt; }
}