/* ============================================================
 * 葬AI Web4 — 全站样式
 * 调性：独立、尖锐、有态度；黑白主调 + 红色强调
 * 风格：印刷品 / 打字机 / 报刊 / 标号
 * ============================================================ */

:root {
  --bg: #0b0b0b;
  --bg-elev: #131313;
  --bg-card: #161616;
  --paper: #ededed;
  --ink: #f1f1ee;
  --ink-dim: #a8a8a3;
  --ink-faint: #5a5a55;
  --line: #1f1f1f;
  --line-strong: #2a2a2a;
  --accent: #ff2d2d;
  --accent-dim: #c42525;
  --amber: #f5b800;
  --green: #3ecf6c;

  --type-product: #ff7a59;
  --type-founder: #ffd23f;
  --type-vc: #6ee7ff;
  --type-company: #b69cff;

  --mono: "JetBrains Mono", "Fira Code", "SF Mono", "Menlo", "Consolas", ui-monospace, monospace;
  --serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", "Source Han Serif CN", serif;
  --sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(255,45,45,0.04), transparent 60%),
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(255,255,255,0.012) 39px 40px);
}

a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color .15s, border-color .15s, background .15s;
}
a:hover { color: var(--accent); border-color: var(--accent); }

::selection { background: var(--accent); color: #000; }

img { max-width: 100%; display: block; }

/* ============ 顶栏 ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,11,11,0.86);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.04em;
  border: 1px solid var(--ink);
  padding: 4px 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.brand .dot {
  width: 8px; height: 8px; background: var(--accent);
  display: inline-block;
  animation: pulse 1.6s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }
.brand .ver { color: var(--ink-dim); font-weight: 400; }

.nav { display: flex; gap: 4px; font-family: var(--mono); font-size: 13px; }
.nav a {
  border: 1px solid transparent;
  padding: 6px 12px;
  border-bottom: none;
  color: var(--ink-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.nav a:hover { color: var(--ink); border-color: var(--line-strong); background: var(--bg-elev); }
.nav a.active { color: var(--ink); border-color: var(--ink); background: var(--bg-elev); }

.nav-meta {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ============ 布局容器 ============ */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
}
.container-narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ============ 首页 ============ */
.hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, transparent 0 159px, rgba(255,255,255,0.02) 159px 160px),
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(255,255,255,0.018) 39px 40px);
  pointer-events: none;
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.5fr 1fr; gap: 60px; align-items: end; }
@media (max-width: 900px) { .hero-inner { grid-template-columns: 1fr; gap: 32px; } }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.eyebrow::before {
  content: ""; width: 28px; height: 1px; background: var(--accent);
}

h1.headline {
  font-family: var(--mono);
  font-weight: 800;
  font-size: clamp(40px, 7vw, 96px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}
h1.headline .red { color: var(--accent); }
h1.headline .strike { text-decoration: line-through; text-decoration-color: var(--accent); text-decoration-thickness: 4px; }

.lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-dim);
  max-width: 540px;
}
.lede strong { color: var(--ink); }

.hero-side {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-dim);
  border-left: 1px solid var(--line-strong);
  padding: 6px 0 6px 18px;
}
.hero-side dt { color: var(--ink-faint); letter-spacing: 0.18em; text-transform: uppercase; margin-top: 12px; }
.hero-side dt:first-child { margin-top: 0; }
.hero-side dd { margin: 4px 0 0; color: var(--ink); font-size: 13px; }
.hero-side .big { font-size: 28px; color: var(--ink); font-weight: 700; letter-spacing: -0.01em; }

/* 统计带 */
.statbar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-elev);
}
@media (max-width: 700px) { .statbar { grid-template-columns: repeat(2, 1fr); } }
.stat {
  padding: 22px 28px;
  border-right: 1px solid var(--line);
  font-family: var(--mono);
}
.stat:last-child { border-right: none; }
.stat .k { font-size: 11px; color: var(--ink-faint); letter-spacing: 0.18em; text-transform: uppercase; }
.stat .v { font-size: 30px; font-weight: 700; color: var(--ink); margin-top: 4px; }
.stat .v .u { font-size: 14px; color: var(--ink-faint); font-weight: 400; margin-left: 6px; }

/* 板块标题 */
.section {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}
.section:last-of-type { border-bottom: none; }

.section-title {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin: 0 0 28px;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.section-title .num {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0;
  font-size: 13px;
}
.section-title h2 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.16em;
}
.section-title .rule {
  flex: 1; height: 1px; background: var(--line-strong);
}
.section-title .right { color: var(--ink-faint); font-size: 12px; }

/* 入口卡片 */
.entry-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 0;
  border: 1px solid var(--line-strong);
}
@media (max-width: 900px) { .entry-grid { grid-template-columns: 1fr; } }

.entry {
  padding: 32px 28px;
  border-right: 1px solid var(--line-strong);
  display: flex;
  flex-direction: column;
  min-height: 240px;
  background: var(--bg-elev);
  transition: background .2s;
}
.entry:last-child { border-right: none; }
.entry:hover { background: #1c1c1c; }
.entry.featured { background: linear-gradient(180deg, #1a0a0a 0%, #131313 100%); }
.entry.featured:hover { background: linear-gradient(180deg, #220d0d 0%, #181818 100%); }
.entry .label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.entry .label::before {
  content: ""; width: 6px; height: 6px; background: var(--accent);
}
.entry h3 {
  font-family: var(--mono);
  font-weight: 800;
  font-size: 32px;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 18px 0 12px;
  color: var(--ink);
}
.entry p {
  margin: 0 0 16px;
  color: var(--ink-dim);
  font-size: 14px;
  line-height: 1.55;
  flex: 1;
}
.entry .cta {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 8px 14px;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.entry .cta::after { content: "→"; }
.entry:hover .cta { background: var(--ink); color: #000; border-color: var(--ink); }
.entry.featured .cta { background: var(--accent); color: #000; border-color: var(--accent); }
.entry.featured:hover .cta { background: var(--ink); border-color: var(--ink); }

/* 文章列表（首页最近）*/
.recent-list { display: grid; gap: 0; }
.recent-row {
  display: grid;
  grid-template-columns: 80px 1fr 160px 100px;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  align-items: center;
  font-family: var(--mono);
  font-size: 14px;
}
.recent-row:first-of-type { border-top: 1px solid var(--line-strong); }
.recent-row:hover { background: var(--bg-elev); }
.recent-row .id { color: var(--ink-faint); font-size: 12px; }
.recent-row .title { color: var(--ink); font-weight: 600; font-size: 15px; }
.recent-row .title a { border: none; }
.recent-row .title a:hover { color: var(--accent); }
.recent-row .author { color: var(--ink-dim); font-size: 12px; text-align: right; }
.recent-row .date { color: var(--ink-faint); font-size: 12px; text-align: right; }
@media (max-width: 700px) {
  .recent-row { grid-template-columns: 60px 1fr; }
  .recent-row .author, .recent-row .date { display: none; }
}

/* 排行榜 */
.lb-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 1100px) { .lb-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .lb-grid { grid-template-columns: 1fr; } }
.lb-card {
  border: 1px solid var(--line-strong);
  background: var(--bg-elev);
  padding: 18px 20px;
}
.lb-card h4 {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: flex;
  align-items: center;
  gap: 8px;
}
.lb-card h4 .dot {
  width: 8px; height: 8px; display: inline-block; border-radius: 50%;
}
.lb-card.products h4 .dot { background: var(--type-product); }
.lb-card.founders h4 .dot { background: var(--type-founder); }
.lb-card.vcs h4 .dot { background: var(--type-vc); }
.lb-card.companies h4 .dot { background: var(--type-company); }

.lb-list { display: grid; gap: 8px; }
.lb-row {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  gap: 10px;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 13px;
  padding: 4px 0;
  border-bottom: 1px dotted var(--line);
}
.lb-row:last-child { border-bottom: none; }
.lb-row .rk { color: var(--ink-faint); font-size: 11px; }
.lb-row .rk.top { color: var(--accent); font-weight: 700; }
.lb-row .nm { color: var(--ink); font-weight: 600; }
.lb-row .nm:hover { color: var(--accent); }
.lb-row .mt { color: var(--ink-faint); font-size: 11px; }

/* 脚标 */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  margin-top: 64px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
}
.site-footer .row { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; }
.site-footer .right { margin-left: auto; color: var(--ink-faint); }
.site-footer a { border: none; }
.site-footer a:hover { color: var(--accent); }

/* ============ 知识图谱页 ============ */
.graph-page { display: grid; grid-template-rows: auto 1fr; height: calc(100vh - 50px); }
.graph-top {
  border-bottom: 1px solid var(--line);
  padding: 18px 28px;
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--bg-elev);
  flex-wrap: wrap;
}
.graph-top h1 {
  margin: 0;
  font-family: var(--mono);
  font-size: 18px;
  letter-spacing: 0.04em;
  font-weight: 700;
}
.graph-top .stat {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0 14px;
  border-left: 1px solid var(--line-strong);
}
.graph-top .stat b { color: var(--ink); font-weight: 700; font-size: 13px; margin-right: 6px; }

.filter-chips { display: flex; gap: 6px; }
.chip {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink-dim);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.chip:hover { color: var(--ink); border-color: var(--ink); }
.chip.active { color: #000; background: var(--ink); border-color: var(--ink); }
.chip .dot { width: 8px; height: 8px; border-radius: 50%; }
.chip.product .dot { background: var(--type-product); }
.chip.founder .dot { background: var(--type-founder); }
.chip.vc .dot { background: var(--type-vc); }
.chip.company .dot { background: var(--type-company); }

.graph-canvas-wrap {
  position: relative;
  height: 100%;
  min-height: 0;
  background:
    radial-gradient(ellipse at center, #111 0%, #070707 100%);
  overflow: hidden;
}
#graph-canvas { display: block; width: 100%; height: 100%; cursor: grab; position: absolute; inset: 0; }
#graph-canvas:active { cursor: grabbing; }

.graph-side {
  position: absolute;
  top: 18px; right: 18px;
  width: 340px;
  max-height: calc(100% - 36px);
  background: rgba(20,20,20,0.94);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 18px 20px;
  overflow-y: auto;
  font-size: 13px;
  z-index: 10;
  transition: opacity .15s, transform .15s;
}
.graph-side.hidden { opacity: 0; pointer-events: none; transform: translateX(20px); }
.graph-side .close {
  position: absolute; top: 8px; right: 12px;
  font-family: var(--mono); font-size: 18px;
  color: var(--ink-faint); cursor: pointer; border: none; background: transparent;
}
.graph-side .close:hover { color: var(--accent); }
.graph-side h3 {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.graph-side .type-pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 2px 8px;
  border: 1px solid currentColor;
  margin-bottom: 12px;
}
.graph-side .type-pill.product { color: var(--type-product); }
.graph-side .type-pill.person { color: var(--type-founder); }
.graph-side .type-pill.vc_firm { color: var(--type-vc); }
.graph-side .type-pill.company { color: var(--type-company); }
.graph-side .desc {
  color: var(--ink-dim);
  line-height: 1.55;
  margin: 8px 0 14px;
  font-size: 13px;
}
.graph-side .meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.1em;
  display: flex;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  margin-bottom: 12px;
}
.graph-side .meta b { color: var(--ink); font-weight: 700; font-size: 13px; display: block; }
.graph-side .sect {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 16px 0 6px;
}
.graph-side .link-row {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
  border-top: 1px dotted var(--line);
  padding: 6px 0;
  display: flex;
  gap: 8px;
  align-items: baseline;
}
.graph-side .link-row .arrow { color: var(--ink-faint); }
.graph-side .link-row .rel { color: var(--accent); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; }
.graph-side .link-row .nm { color: var(--ink); }
.graph-side .link-row .nm:hover { color: var(--accent); }

.graph-side .tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--ink-dim);
  border: 1px solid var(--line-strong);
  padding: 1px 6px;
  margin: 2px 4px 2px 0;
}
.graph-side .src-art {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-dim);
  border-top: 1px dotted var(--line);
  padding: 6px 0;
}
.graph-side .src-art:hover { color: var(--accent); }

.graph-help {
  position: absolute;
  bottom: 14px; left: 14px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  background: rgba(0,0,0,0.6);
  border: 1px solid var(--line);
  padding: 8px 12px;
  letter-spacing: 0.04em;
}
.graph-help b { color: var(--ink); }

.graph-search {
  position: relative;
}
.graph-search input {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  background: #0a0a0a;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  padding: 6px 10px 6px 28px;
  width: 200px;
  outline: none;
}
.graph-search input:focus { border-color: var(--accent); }
.graph-search::before {
  content: "▸";
  position: absolute;
  left: 10px; top: 50%;
  transform: translateY(-50%);
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 11px;
  pointer-events: none;
}

/* ============ 文章列表页 ============ */
.articles-page { padding: 56px 0 80px; }

.articles-head { display: flex; align-items: baseline; gap: 24px; margin-bottom: 28px; flex-wrap: wrap; }
.articles-head h1 {
  font-family: var(--mono);
  font-size: 40px;
  margin: 0;
  letter-spacing: -0.02em;
  font-weight: 800;
}
.articles-head h1 .red { color: var(--accent); }
.articles-head .count {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-faint);
  letter-spacing: 0.1em;
}

.articles-toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  border: 1px solid var(--line-strong);
  padding: 10px 14px;
  background: var(--bg-elev);
  margin-bottom: 0;
}
.articles-toolbar .spacer { flex: 1; }

.search-box { position: relative; }
.search-box input {
  font-family: var(--mono);
  font-size: 13px;
  background: #0a0a0a;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  padding: 6px 10px 6px 28px;
  width: 280px;
  outline: none;
}
.search-box input:focus { border-color: var(--accent); }
.search-box::before {
  content: "⌕";
  position: absolute;
  left: 8px; top: 50%;
  transform: translateY(-50%);
  color: var(--ink-faint);
  pointer-events: none;
  font-size: 14px;
}

.author-filter { display: flex; gap: 6px; flex-wrap: wrap; }
.author-chip {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink-dim);
  cursor: pointer;
}
.author-chip:hover { color: var(--ink); border-color: var(--ink); }
.author-chip.active { color: #000; background: var(--ink); border-color: var(--ink); }
.author-chip .ct { color: var(--ink-faint); margin-left: 4px; }
.author-chip.active .ct { color: #555; }

.sort-btn {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: transparent;
  color: var(--ink-dim);
  border: 1px solid var(--line-strong);
  padding: 5px 10px;
  cursor: pointer;
}
.sort-btn:hover { color: var(--ink); border-color: var(--ink); }
.sort-btn.active { color: #000; background: var(--ink); border-color: var(--ink); }

.articles-table { width: 100%; border-collapse: collapse; font-family: var(--mono); margin-top: 0; }
.articles-table thead th {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  text-align: left;
  padding: 12px 10px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: var(--bg-elev);
  font-weight: 500;
}
.articles-table tbody td {
  padding: 14px 10px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  vertical-align: top;
}
.articles-table tbody tr:hover td { background: var(--bg-elev); }
.articles-table .col-id { color: var(--ink-faint); width: 50px; font-size: 12px; }
.articles-table .col-date { color: var(--ink-faint); width: 100px; font-size: 12px; }
.articles-table .col-author { color: var(--ink-dim); width: 100px; font-size: 12px; }
.articles-table .col-meta { color: var(--ink-faint); width: 100px; font-size: 11px; text-align: right; }
.articles-table .col-title a { color: var(--ink); font-weight: 600; font-size: 15px; border: none; }
.articles-table .col-title a:hover { color: var(--accent); }
.articles-table .col-title .ex { display: block; color: var(--ink-faint); font-size: 12px; margin-top: 4px; font-family: var(--sans); line-height: 1.5; }
.articles-table .col-meta span { display: inline-block; margin-left: 10px; }

.no-results {
  padding: 60px 20px;
  text-align: center;
  font-family: var(--mono);
  color: var(--ink-faint);
  font-size: 13px;
  letter-spacing: 0.1em;
}

/* ============ 文章详情页 ============ */
.article-page { padding: 56px 0 80px; }
.article-meta {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}
.article-meta .dot { width: 4px; height: 4px; background: var(--ink-faint); display: inline-block; border-radius: 50%; }
.article-meta a { border: none; color: var(--ink-dim); }
.article-meta a:hover { color: var(--accent); }

.article-title {
  font-family: var(--mono);
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  color: var(--ink);
}
.article-dek {
  font-size: 16px;
  color: var(--ink-dim);
  border-left: 2px solid var(--accent);
  padding-left: 14px;
  margin: 0 0 28px;
  line-height: 1.55;
}

.article-toolbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  margin-bottom: 32px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
}
.article-toolbar .src { color: var(--ink-dim); }
.article-toolbar .right { margin-left: auto; display: flex; gap: 12px; }
.article-toolbar a { border: none; color: var(--ink-dim); }
.article-toolbar a:hover { color: var(--accent); }

/* 文章正文（markdown 渲染）*/
.article-body {
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
  font-family: var(--serif);
}
.article-body > *:first-child { margin-top: 0; }
.article-body p { margin: 0 0 1.4em; }
.article-body h1, .article-body h2, .article-body h3, .article-body h4 {
  font-family: var(--mono);
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 2em 0 0.6em;
  color: var(--ink);
}
.article-body h1 { font-size: 28px; font-weight: 800; }
.article-body h2 { font-size: 24px; font-weight: 700; border-top: 1px solid var(--line-strong); padding-top: 0.6em; }
.article-body h3 { font-size: 20px; font-weight: 700; }
.article-body h4 { font-size: 16px; font-weight: 700; color: var(--ink-dim); text-transform: uppercase; letter-spacing: 0.08em; }
.article-body a { color: var(--ink); border-bottom: 1px solid var(--accent-dim); }
.article-body a:hover { color: var(--accent); border-color: var(--accent); }
.article-body strong { color: var(--ink); font-weight: 700; }
.article-body em { color: var(--ink); font-style: italic; }
.article-body blockquote {
  margin: 1.6em 0;
  padding: 14px 20px;
  border-left: 3px solid var(--accent);
  background: rgba(255,45,45,0.04);
  color: var(--ink);
  font-style: italic;
}
.article-body blockquote p { margin: 0.4em 0; }
.article-body ul, .article-body ol { margin: 0 0 1.4em; padding-left: 1.6em; }
.article-body li { margin: 0.3em 0; }
.article-body hr {
  border: none;
  text-align: center;
  margin: 2.4em 0;
  color: var(--ink-faint);
}
.article-body hr::before { content: "✦ ✦ ✦"; letter-spacing: 0.6em; font-size: 12px; }
.article-body code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg-elev);
  padding: 1px 6px;
  border: 1px solid var(--line);
}
.article-body pre {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.55;
}
.article-body pre code { background: transparent; border: none; padding: 0; }
.article-body img { margin: 1.2em auto; border: 1px solid var(--line-strong); }
.article-body table { border-collapse: collapse; width: 100%; font-family: var(--mono); font-size: 13px; margin: 1.2em 0; }
.article-body table th, .article-body table td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; }
.article-body table th { background: var(--bg-elev); color: var(--ink-dim); }

/* 引用块（首行特殊处理） */
.article-body > blockquote:first-of-type {
  background: linear-gradient(180deg, rgba(255,45,45,0.07) 0%, transparent 100%);
  border-left-color: var(--accent);
  font-size: 18px;
  font-style: normal;
  color: var(--ink);
}

/* 文章底部：实体关系图 */
.article-bottom {
  margin-top: 56px;
  border-top: 1px solid var(--line-strong);
  padding-top: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
@media (max-width: 800px) { .article-bottom { grid-template-columns: 1fr; } }
.article-bottom h3 {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 600;
}
.ent-card {
  border: 1px solid var(--line);
  padding: 10px 12px;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.ent-card .nm { color: var(--ink); font-weight: 600; }
.ent-card .nm .tp { color: var(--ink-faint); font-size: 10px; letter-spacing: 0.1em; margin-left: 8px; text-transform: uppercase; }
.ent-card .ds { color: var(--ink-dim); font-size: 12px; line-height: 1.45; font-family: var(--sans); }
.ent-card .ct { color: var(--ink-faint); font-size: 11px; }
.rel-row {
  font-family: var(--mono);
  font-size: 12px;
  border-top: 1px dotted var(--line);
  padding: 6px 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 8px;
  color: var(--ink-dim);
  align-items: baseline;
}
.rel-row .a { color: var(--ink); font-weight: 600; }
.rel-row .rel { color: var(--accent); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; padding: 1px 6px; border: 1px solid var(--accent-dim); }

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 56px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
  font-family: var(--mono);
  font-size: 13px;
}
.article-nav a { border: 1px solid var(--line-strong); padding: 14px 18px; flex: 1; }
.article-nav a:hover { border-color: var(--accent); color: var(--accent); }
.article-nav a.next { text-align: right; }
.article-nav .lab { color: var(--ink-faint); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; display: block; margin-bottom: 4px; }
.article-nav .ti { color: var(--ink); font-weight: 600; }
.article-nav a:hover .ti { color: var(--accent); }

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--line-strong); }
::-webkit-scrollbar-thumb:hover { background: var(--ink-faint); }

/* 响应式微调 */
@media (max-width: 600px) {
  .site-header-inner { padding: 12px 16px; gap: 12px; flex-wrap: wrap; }
  .container, .container-narrow { padding: 0 16px; }
  .hero { padding: 48px 0 40px; }
  .stat { padding: 16px 12px; }
  .stat .v { font-size: 22px; }
  .article-body { font-size: 16px; }
  .article-title { font-size: 26px; }
  .nav-meta { display: none; }
  .search-box input { width: 100%; min-width: 180px; }
}