/* ============================================================
   Game Research Archive — Editorial Design System
   Warm paper · Serif headings · Refined reading experience
   ============================================================ */

/* === Design Tokens === */
:root {
  --font-display: "Noto Serif SC", "Source Han Serif SC", serif;
  --font-body:    "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
  --font-mono:    "DM Mono", "Fira Code", monospace;

  --sx:    4px;
  --sm:    10px;
  --sd:    22px;
  --sl:    36px;
  --sxl:   52px;
  --sxxl:  80px;
  --radius: 5px;
  --ease:   cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* === Light Theme === */
[data-theme="light"] {
  --bg:             #f6f3ed;
  --bg-card:        #fefcf8;
  --bg-raised:      #f0ece4;
  --bg-hover:       #fbf9f4;
  --border:         #e2dbcf;
  --border-focus:   #c7bda8;
  --text:           #1b1713;
  --text-sec:       #5a5349;
  --text-dim:       #9a9183;
  --text-muted:     #bfb8ab;
  --accent:         #b64e34;
  --accent-soft:    #f4e4dd;
  --accent-text:    #8e3922;
  --pipe-wx:        #2d8040;
  --pipe-wx-bg:     #e9f2ea;
  --pipe-sc:        #3568a8;
  --pipe-sc-bg:     #e8eef6;
  --pipe-tr:        #b36d2a;
  --pipe-tr-bg:     #f4ede2;
  --pipe-ai:        #6b3fa0;
  --pipe-ai-bg:     #f0eaf6;
  --shadow-sm:      0 1px 2px rgba(0,0,0,0.03);
  --shadow-md:      0 4px 24px rgba(0,0,0,0.06);
  --shadow-lg:      0 12px 48px rgba(0,0,0,0.08);
  --grain-opacity:  0.025;
}

/* === Dark Theme === */
[data-theme="dark"] {
  --bg:             #161411;
  --bg-card:        #1e1c19;
  --bg-raised:      #282521;
  --bg-hover:       #24211e;
  --border:         #34302a;
  --border-focus:   #4a4439;
  --text:           #e8e3da;
  --text-sec:       #b5ad9f;
  --text-dim:       #7a7366;
  --text-muted:     #5b554a;
  --accent:         #d4765a;
  --accent-soft:    #3a251c;
  --accent-text:    #e08d74;
  --pipe-wx:        #53b56e;
  --pipe-wx-bg:     #1a261d;
  --pipe-sc:        #5f8fd4;
  --pipe-sc-bg:     #171f2a;
  --pipe-tr:        #d49440;
  --pipe-tr-bg:     #261f14;
  --pipe-ai:        #9b6ecf;
  --pipe-ai-bg:     #1f1729;
  --shadow-sm:      0 1px 2px rgba(0,0,0,0.2);
  --shadow-md:      0 4px 24px rgba(0,0,0,0.3);
  --shadow-lg:      0 12px 48px rgba(0,0,0,0.4);
  --grain-opacity:  0.035;
}

/* === Grain Texture Overlay === */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* === Reset & Base === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  transition: background 0.5s var(--ease), color 0.5s var(--ease);
}

/* === Header / Masthead === */
.site-head {
  position: relative;
  z-index: 100;
  background: var(--bg);
  border-bottom: 3px double var(--text);
  padding: var(--sl) var(--sl) var(--sm);
  text-align: center;
  transition: background 0.5s var(--ease), border-color 0.5s var(--ease);
}

.head-inner {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

/* Brand */
.brand {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  user-select: none;
}
.brand-cn {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.12em;
}
.brand-en {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  font-weight: 400;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.brand:hover .brand-en { color: var(--accent-text); transition: color 0.3s; }

.masthead-meta {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  margin-top: 2px;
}

/* Toolbar row (below masthead) */
.toolbar {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--sm) var(--sl) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sd);
}

/* Search */
.search-wrap { position: relative; }
.search-field {
  width: 260px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.88rem;
  outline: none;
  transition: all 0.25s var(--ease);
}
.search-field::placeholder { color: var(--text-dim); opacity: 0.7; }
.search-field:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  width: 300px;
}

/* Search dropdown */
.search-drop {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  max-height: 380px;
  overflow-y: auto;
  z-index: 200;
}
.search-drop.show { display: block; animation: dropIn 0.18s var(--ease); }

@keyframes dropIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.search-drop-item {
  padding: var(--sm) var(--sd);
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.search-drop-item:last-child { border-bottom: none; }
.search-drop-item:hover { background: var(--bg-raised); }
.sdi-title {
  font-size: 0.92rem;
  color: var(--text);
  font-weight: 500;
  line-height: 1.3;
}
.sdi-meta {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 3px;
  font-family: var(--font-mono);
}

/* Theme toggle */
.tool-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text-sec);
  cursor: pointer;
  transition: all 0.25s var(--ease);
}
.tool-btn:hover { color: var(--accent-text); border-color: var(--accent); }

/* === Today Strip === */
.today-strip {
  margin-bottom: var(--sl);
  padding: var(--sd);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.today-head {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--sm);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}
.today-icon { color: var(--accent); }
.today-count {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-dim);
  margin-left: auto;
}
.today-row {
  display: flex;
  gap: var(--sm);
  overflow-x: auto;
  padding-bottom: 4px;
}
.today-card {
  flex: 0 0 200px;
  padding: var(--sm);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s var(--ease);
  background: var(--bg);
}
.today-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}
.today-card-tag {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  padding: 1px 5px;
  border-radius: 2px;
  background: var(--bg-raised);
  color: var(--text-dim);
}
.today-card-tag.pipe-wx { background: var(--pipe-wx-bg); color: var(--pipe-wx); }
.today-card-tag.pipe-sc { background: var(--pipe-sc-bg); color: var(--pipe-sc); }
.today-card-tag.pipe-tr { background: var(--pipe-tr-bg); color: var(--pipe-tr); }
.today-card-tag.pipe-ai { background: var(--pipe-ai-bg); color: var(--pipe-ai); }
.today-card-title {
  display: block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  margin: 6px 0 2px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.today-card-src {
  font-size: 0.64rem;
  color: var(--text-dim);
}

/* === Filter Bar — Tab style === */
.filter-strip {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 var(--sl);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.filter-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
}
.filter-label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-right: 12px;
  min-width: 38px;
}

.f-chip {
  padding: 6px 14px;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  white-space: nowrap;
}
.f-chip:hover { color: var(--text); border-bottom-color: var(--border); }
.f-chip.active {
  color: var(--accent-text);
  border-bottom-color: var(--accent);
  background: transparent;
  font-weight: 500;
}

/* === Main Content === */
.main-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--sl);
}

/* View switching */
.view { display: none; }
.view.active {
  display: block;
  animation: fadeUp 0.4s var(--ease);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* === Feed Meta === */
.feed-meta {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--sd);
  padding-bottom: var(--sm);
  border-bottom: 1px solid var(--border);
}
.feed-meta .stats-link {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.feed-meta .stats-link:hover { color: var(--accent-text); }

/* === Card Grid — 12-column newspaper layout === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 28px 24px;
  max-width: 860px;
}

/* === Article Card — base === */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: none;
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: var(--sd);
  cursor: pointer;
  transition: all 0.3s var(--ease);
  display: flex;
  flex-direction: column;
  position: relative;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* === Hero Card === */
.card.hero {
  grid-column: 1 / -1;
  border-top: 5px solid var(--accent);
  padding: var(--sd) var(--sd);
  flex-direction: column;
}
.card.hero .card-title {
  font-size: 1.55rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card.hero .card-source {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.card.hero .card-desc {
  -webkit-line-clamp: 4;
}

/* === Standard Card === */
.card.standard {
  grid-column: span 4;
  border-top: 4px solid var(--accent);
}
.card.standard .card-title {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* === Compact Card === */
.card.compact {
  grid-column: span 4;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-left: none;
  border-top: none;
}
.card.compact .card-badge {
  flex-shrink: 0;
  font-size: 0.58rem;
  padding: 3px 10px;
  white-space: nowrap;
}
.card.compact .card-title {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  line-height: 1.4;
  color: var(--text);
  flex: 1;
  margin-bottom: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Pipeline accent colors on card top border */
.card.hero[data-pipeline="微信资讯"],
.card.standard[data-pipeline="微信资讯"] { border-top-color: var(--pipe-wx); }
.card.hero[data-pipeline="自主采集"],
.card.standard[data-pipeline="自主采集"] { border-top-color: var(--pipe-sc); }
.card.hero[data-pipeline="游戏跟踪"],
.card.standard[data-pipeline="游戏跟踪"] { border-top-color: var(--pipe-tr); }
.card.hero[data-pipeline="AI资讯"],
.card.standard[data-pipeline="AI资讯"] { border-top-color: var(--pipe-ai); }

.card-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.card-badge {
  font-family: var(--font-mono);
  font-size: 0.56rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 3px;
  letter-spacing: 0.05em;
  background: var(--bg-raised);
  color: var(--text-dim);
}
/* Pipeline badge colors */
.card-badge.pipe-wx { background: var(--pipe-wx-bg); color: var(--pipe-wx); }
.card-badge.pipe-sc { background: var(--pipe-sc-bg); color: var(--pipe-sc); }
.card-badge.pipe-tr { background: var(--pipe-tr-bg); color: var(--pipe-tr); }
.card-badge.pipe-ai { background: var(--pipe-ai-bg); color: var(--pipe-ai); }

.card-date {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  margin-left: auto;
}

.card-source {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-sec);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.57rem;
  padding: 2px 8px;
  border-radius: 3px;
  background: var(--bg-raised);
  color: var(--text-dim);
}

/* === Section Header (with em-dash decoration) === */
.section-header {
  grid-column: 1 / -1;
  text-align: center;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  padding: var(--sl) 0 var(--sm);
}
.section-header::before { content: '\2014\2014 '; }
.section-header::after  { content: ' \2014\2014'; }

/* Section rule divider */
.section-rule {
  grid-column: 1 / -1;
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* === Month Separator — em-dash format === */
.month-sep {
  grid-column: 1 / -1;
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dim);
  padding: var(--sd) 0;
  letter-spacing: 0.04em;
  border-bottom: none;
  margin-top: 0;
}

/* === Load More === */
.load-more-wrap {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--sl) 0 var(--sxl);
}
.load-more-btn {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 12px 48px;
  border: 1.5px solid var(--accent);
  border-radius: 24px;
  background: transparent;
  color: var(--accent-text);
  cursor: pointer;
  transition: all 0.3s var(--ease);
}
.load-more-btn:hover {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  transform: translateY(-1px);
}

/* === Empty State === */
.blank-slate {
  text-align: center;
  padding: var(--sxxl) var(--sl);
  display: none;
  color: var(--text-dim);
}
.blank-icon {
  font-size: 2.5rem;
  margin-bottom: var(--sd);
  font-family: var(--font-display);
  color: var(--text-muted);
}
.blank-msg {
  font-size: 1.05rem;
  color: var(--text-sec);
  margin-bottom: 6px;
}
.blank-sub {
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* === Back Navigation === */
.nav-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  cursor: pointer;
  padding: 8px 0;
  margin-bottom: var(--sl);
  transition: color 0.25s;
}
.nav-back:hover { color: var(--accent-text); }

/* === Detail View === */
.detail-wrap { max-width: 740px; position: relative; }

.detail-head {
  margin-bottom: var(--sl);
  padding-bottom: var(--sd);
  border-bottom: 2px solid var(--text);
}

.detail-title {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 900;
  line-height: 1.22;
  color: var(--text);
  margin-bottom: var(--sm);
  letter-spacing: -0.01em;
}

.detail-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sm);
  font-size: 0.84rem;
  color: var(--text-sec);
  margin-bottom: var(--sm);
}
.detail-meta-row a {
  color: var(--accent-text);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-soft);
  transition: border-color 0.2s;
}
.detail-meta-row a:hover { border-bottom-color: var(--accent); }

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}
.detail-tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  padding: 3px 10px;
  border-radius: 3px;
  background: var(--bg-raised);
  color: var(--text-dim);
}

/* === Prose / Article Content === */
.prose {
  font-size: 0.98rem;
  line-height: 1.9;
  color: var(--text);
  word-break: break-word;
}

.prose > *:first-child { margin-top: 0; }

.prose h1 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  margin: 2.2em 0 0.5em;
  color: var(--text);
  line-height: 1.3;
}
.prose h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 2em 0 0.5em;
  color: var(--text);
  padding-bottom: 0.4em;
  border-bottom: 1px solid var(--border);
  line-height: 1.3;
}
.prose h3 {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
  margin: 1.6em 0 0.4em;
  color: var(--text-sec);
}
.prose h4, .prose h5, .prose h6 {
  font-size: 0.92rem;
  font-weight: 500;
  margin: 1.3em 0 0.3em;
  color: var(--text-dim);
}

.prose p { margin: 0.9em 0; }

.prose ul, .prose ol {
  margin: 0.7em 0;
  padding-left: 1.5em;
}
.prose li { margin: 0.35em 0; }
.prose li::marker { color: var(--text-dim); }

.prose blockquote {
  border-left: 3px solid var(--accent);
  margin: 1.2em 0;
  padding: 0.7em 1.2em;
  background: var(--bg-raised);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text-sec);
}
.prose blockquote p { margin: 0.35em 0; }
.prose blockquote p:first-child { margin-top: 0; }
.prose blockquote p:last-child { margin-bottom: 0; }

.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-raised);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--accent-text);
}
.prose pre {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sm) var(--sd);
  overflow-x: auto;
  margin: 1.2em 0;
  font-size: 0.83rem;
  line-height: 1.55;
}
.prose pre code {
  background: none;
  padding: 0;
  color: var(--text);
}
.prose pre.mermaid {
  background: var(--bg);
  text-align: center;
  padding: var(--sd);
  cursor: zoom-in;
  transition: transform 0.2s;
}
.prose pre.mermaid:hover {
  transform: scale(1.01);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2em 0;
  font-size: 0.86rem;
}
.prose th, .prose td {
  border: 1px solid var(--border);
  padding: 8px 14px;
  text-align: left;
}
.prose th {
  background: var(--bg-raised);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: var(--text-sec);
}

.prose img {
  max-width: 100%;
  border-radius: var(--radius);
  margin: 0.8em 0;
}
.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.2em 0;
}
.prose a {
  color: var(--accent-text);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-soft);
  transition: border-color 0.2s;
}
.prose a:hover { border-bottom-color: var(--accent); }
/* Wiki Card — compact inline preview, same style as related cards */
.prose a.wiki-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sm) var(--sd);
  margin: 0.6em 0;
  transition: all 0.25s var(--ease);
}
.prose a.wiki-card:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
  border-color: var(--border-focus);
}
.prose a.wiki-card .card-top { margin-bottom: 4px; gap: 4px; }
.prose a.wiki-card .card-badge { font-size: 0.5rem; padding: 0 5px; }
.prose a.wiki-card .card-date { font-size: 0.54rem; }
.prose a.wiki-card .card-title { font-size: 0.78rem; font-weight: 600; -webkit-line-clamp: 2; }
.prose a.wiki-card .card-source { font-size: 0.68rem; }
.prose a.wiki-card .card-desc { font-size: 0.72rem; -webkit-line-clamp: 2; margin-top: 2px; }
.prose a.wiki-card .card-tags { margin-top: 6px; padding-top: 6px; gap: 3px; }
.prose a.wiki-card .card-tag { font-size: 0.5rem; padding: 1px 5px; }
.prose li:has(a.wiki-card) { list-style: none; margin-left: -1.5em; }

.prose strong { color: var(--text); font-weight: 700; }
.prose em { font-style: italic; }

/* === Stats === */
.stats-wrap { max-width: 680px; }

.stat-hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--sm);
  margin-bottom: var(--sl);
}
.stat-hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sd);
  text-align: center;
  transition: box-shadow 0.3s;
}
.stat-hero-card:hover { box-shadow: var(--shadow-sm); }

.stat-hero-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-text);
  line-height: 1;
}
.stat-hero-label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: var(--text-dim);
  margin-top: 8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stats-section {
  margin-bottom: var(--sl);
}
.stats-section h3 {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: var(--sm);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
}

.stat-row {
  display: flex;
  align-items: center;
  gap: var(--sm);
  padding: 4px 0;
  font-size: 0.86rem;
}
.stat-row-name {
  min-width: 180px;
  color: var(--text-sec);
}
.stat-row-bar {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.stat-row-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent);
  transition: width 0.8s var(--ease);
}
.stat-row-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-text);
  min-width: 30px;
  text-align: right;
}

.stats-footnote {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--text-dim);
  margin-top: var(--sm);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag-pill {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.tag-pill:hover {
  color: var(--accent-text);
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* === Toast === */
.snack {
  position: fixed;
  bottom: var(--sd);
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 24px;
  background: var(--text);
  color: var(--bg);
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
  z-index: 9999;
}
.snack.show { opacity: 1; }

/* === Stats Navigation === */
.stats-nav {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px 0;
  margin-bottom: var(--sl);
  transition: color 0.2s;
}
.stats-nav:hover { color: var(--accent-text); }

/* === TOC Sidebar === */
.toc-sidebar {
  position: fixed;
  right: max(calc((100vw - 1240px) / 2), var(--sl));
  top: 94px;
  width: 230px;
  max-height: calc(100vh - 130px);
  overflow-y: auto;
  padding: var(--sd) var(--sd);
  border-left: 2px solid var(--border);
  background: color-mix(in srgb, var(--bg) 96%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 50;
}
.toc-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--sm);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.toc-item {
  display: block;
  font-size: 0.82rem;
  color: var(--text-sec);
  text-decoration: none;
  padding: 5px 0 5px 10px;
  line-height: 1.45;
  transition: color 0.2s, border-color 0.2s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  border-left: 2px solid transparent;
}
.toc-item:hover { color: var(--accent-text); }
.toc-l3 { padding-left: 22px; font-size: 0.78rem; }
.toc-active {
  color: var(--accent-text);
  border-left-color: var(--accent);
  font-weight: 500;
}

/* === Mermaid Lightbox === */
.mermaid-lb {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0,0,0,0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  justify-content: center;
  align-items: center;
  cursor: zoom-out;
  animation: lbFadeIn 0.2s ease;
}
.mermaid-lb.show { display: flex; }

@keyframes lbFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.mermaid-lb-inner {
  position: relative;
  width: 90vw;
  height: 88vh;
  background: #fff;
  border-radius: 6px;
  padding: 24px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  overflow: auto;
  cursor: default;
  display: flex;
  justify-content: center;
  align-items: center;
}

.mermaid-lb-inner svg {
  width: 100% !important;
  height: auto !important;
  max-width: 100%;
  min-width: 60vw;
}
.mermaid-lb-close {
  position: absolute;
  top: 8px;
  right: 14px;
  background: none;
  border: none;
  font-size: 28px;
  color: #666;
  cursor: pointer;
  line-height: 1;
  padding: 0 6px;
  transition: color 0.2s;
  z-index: 1;
}
.mermaid-lb-close:hover { color: #111; }

/* === Responsive === */
@media (max-width: 860px) {
  html { font-size: 15px; }
  .site-head { padding-left: var(--sd); padding-right: var(--sd); }
  .main-wrap { padding: var(--sd); }
  .toolbar { padding-left: var(--sd); padding-right: var(--sd); }
  .filter-strip { padding-left: var(--sd); padding-right: var(--sd); }
  .search-field { width: 180px; }
  .search-field:focus { width: 200px; }
  .card-grid { grid-template-columns: 1fr; max-width: 100%; }
  .card.standard { grid-column: 1 / -1; }
  .card.compact {
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: flex-start;
  }
  .card.compact .card-title { -webkit-line-clamp: 2; }
  .detail-title { font-size: 1.35rem; }
  .detail-wrap { max-width: 100%; }
  .stat-hero { grid-template-columns: repeat(2, 1fr); }
  .stat-row-name { min-width: 110px; font-size: 0.78rem; }
  .toc-sidebar { display: none; }
}

@media (max-width: 480px) {
  .search-field { width: 130px; }
  .search-field:focus { width: 150px; }
  .brand-cn { font-size: 1.35rem; }
  .brand-en { display: none; }
}