/* TikTok Matrix Page Styles */
@font-face { font-family: 'Bricolage'; src: url('./_shared/fonts/BricolageGrotesque-Regular.ttf') format('truetype'); font-display: swap; }
@font-face { font-family: 'Bricolage'; font-weight: 700; src: url('./_shared/fonts/BricolageGrotesque-Bold.ttf') format('truetype'); font-display: swap; }
@font-face { font-family: 'Instrument'; src: url('./_shared/fonts/InstrumentSans-Regular.ttf') format('truetype'); font-display: swap; }
@font-face { font-family: 'Instrument'; font-weight: 700; src: url('./_shared/fonts/InstrumentSans-Bold.ttf') format('truetype'); font-display: swap; }
@font-face { font-family: 'JetBrains'; src: url('./_shared/fonts/JetBrainsMono-Regular.ttf') format('truetype'); font-display: swap; }
@font-face { font-family: 'JetBrains'; font-weight: 700; src: url('./_shared/fonts/JetBrainsMono-Bold.ttf') format('truetype'); font-display: swap; }
:root {
  --bg: #0B0B0F;
  --bg2: #16181D;
  --bg3: #1E2128;
  --ink: #F5F5F7;
  --muted: #9AA0A6;
  --rule: #2A2D34;
  --accent: #FE2C55;     /* TikTok 粉红 */
  --accent2: #25F4EE;    /* TikTok 青蓝 */
  --warn: #FFCC00;
}
body.matrix-page {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Instrument', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  padding-top: 52px;
}
.matrix-page a { color: var(--accent2); text-decoration: none; }
.matrix-page a:hover { text-decoration: underline; }
.matrix-page code, .matrix-page .mono { font-family: 'JetBrains', 'JetBrains Mono', 'Courier New', monospace; font-size: 0.92em; }
/* ============== HERO ============== */
.matrix-page .hero {
  position: relative;
  padding: 7rem 1.5rem 5rem;
  background:
    radial-gradient(ellipse at 80% 0%, rgba(254,44,85,0.18), transparent 50%),
    radial-gradient(ellipse at 10% 100%, rgba(37,244,238,0.12), transparent 50%),
    var(--bg);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}
.matrix-page .hero::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent2) 100%);
}
.matrix-page .hero-inner { max-width: 1400px; margin: 0 auto; position: relative; }
/* ============== BREADCRUMB ============== */
.matrix-page .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1rem;
}
.matrix-page .breadcrumb a {
  color: var(--accent2);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: color 0.2s;
}
.matrix-page .breadcrumb a:hover {
  color: var(--accent);
}
.matrix-page .breadcrumb .sep {
  color: var(--rule);
}
.matrix-page .breadcrumb .current {
  color: var(--ink);
  font-weight: 500;
}
.matrix-page .eyebrow {
  display: inline-block; font-family: 'JetBrains', monospace;
  font-size: 0.78rem; color: var(--accent2);
  border: 1px solid var(--accent2); padding: 0.25rem 0.7rem;
  border-radius: 99px; letter-spacing: 0.06em; margin-bottom: 1.5rem;
}
.matrix-page h1 {
  font-family: 'Bricolage', sans-serif;
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  line-height: 1.1; margin: 0 0 1rem;
  font-weight: 700; letter-spacing: -0.02em;
}
.matrix-page h1 .accent { color: var(--accent); }
.matrix-page h1 .accent2 { color: var(--accent2); }
.matrix-page .hero p.lede {
  font-size: 1.2rem; color: var(--muted); max-width: 780px; margin: 0 0 2.5rem;
}
.matrix-page .meta-row {
  display: flex; flex-wrap: wrap; gap: 1.5rem;
  font-family: 'JetBrains', monospace; font-size: 0.85rem; color: var(--muted);
}
.matrix-page .meta-row span strong { color: var(--ink); font-weight: 700; }
/* ============== TOC ============== */
.matrix-page .toc-wrap { 
  position: fixed; left: 0; top: 180px; bottom: 2rem;
  width: 260px; padding: 0 1rem;
  overflow-y: auto; overflow-x: hidden;
  z-index: 100;
}
.matrix-page .toc-wrap::-webkit-scrollbar { width: 4px; }
.matrix-page .toc-wrap::-webkit-scrollbar-track { background: transparent; }
.matrix-page .toc-wrap::-webkit-scrollbar-thumb { background: var(--rule); border-radius: 2px; }
.matrix-page .toc {
  background: var(--bg2); border: 1px solid var(--rule); border-radius: 14px;
  padding: 1.2rem 1.5rem;
  position: sticky; top: 0;
}
.matrix-page .toc h2 {
  font-family: 'JetBrains', monospace; font-size: 0.8rem;
  color: var(--accent2); margin: 0 0 1rem; letter-spacing: 0.1em;
  padding-bottom: 0.5rem; border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.matrix-page .toc h2 i {
  font-size: 0.9rem;
}
.matrix-page .toc ol {
  list-style: none; padding: 0; margin: 0;
  columns: 1;
}
.matrix-page .toc li { margin-bottom: 0.35rem; }
.matrix-page .toc a { 
  color: var(--muted); font-size: 0.85rem; 
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.25rem 0.5rem; border-radius: 6px;
  transition: all 0.2s;
}
.matrix-page .toc a:hover { color: var(--accent2); background: rgba(37,244,238,0.1); text-decoration: none; }
.matrix-page .toc a.active { color: var(--accent2); background: rgba(37,244,238,0.15); font-weight: 600; }
.matrix-page .toc .num { color: var(--accent); font-family: 'JetBrains', monospace; font-size: 0.75rem; }
/* ============== MAIN ============== */
.matrix-page main { max-width: 100%; margin: 0 0 0 280px; padding: 0 2rem 4rem; }
.matrix-page h2 {
  font-family: 'Bricolage', sans-serif;
  font-size: 2rem; line-height: 1.2; margin: 4rem 0 1rem;
  padding-bottom: 0.6rem; border-bottom: 2px solid var(--accent);
  letter-spacing: -0.01em;
}
.matrix-page h2 .badge {
  display: inline-block; font-family: 'JetBrains', monospace;
  font-size: 0.7rem; color: var(--accent2);
  background: rgba(37,244,238,0.1); padding: 0.2rem 0.6rem;
  border-radius: 99px; margin-left: 0.8rem; vertical-align: middle;
}
.matrix-page h3 {
  font-family: 'Bricolage', sans-serif;
  font-size: 1.35rem; color: var(--ink);
  margin: 2.5rem 0 0.8rem; padding-left: 1rem;
  border-left: 4px solid var(--accent2);
}
.matrix-page h4 {
  font-family: 'Bricolage', sans-serif;
  font-size: 1.05rem; color: var(--accent2);
  margin: 1.5rem 0 0.5rem; text-transform: uppercase; letter-spacing: 0.06em;
}
.matrix-page p { margin: 0.8rem 0; }
.matrix-page ul, .matrix-page ol { padding-left: 1.4rem; margin: 0.8rem 0; }
.matrix-page li { margin-bottom: 0.4rem; }
.matrix-page mark.key { background: rgba(254,44,85,0.15); color: var(--accent); font-weight: 600; padding: 0 0.2rem; border-radius: 3px; }
.matrix-page blockquote {
  margin: 1.5rem 0; padding: 1rem 1.2rem;
  background: var(--bg2); border-left: 4px solid var(--accent);
  border-radius: 0 8px 8px 0; color: var(--muted);
  font-style: italic;
}
.matrix-page blockquote strong { color: var(--ink); font-style: normal; }
/* ============== CARDS ============== */
.matrix-page .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; margin: 1.5rem 0; }
.matrix-page .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; margin: 1.5rem 0; }
.matrix-page .card {
  background: var(--bg2); border: 1px solid var(--rule);
  border-radius: 12px; padding: 1.2rem;
  transition: transform 0.2s, border-color 0.2s;
}
.matrix-page .card:hover { transform: translateY(-2px); border-color: var(--accent2); }
.matrix-page .card h4 { margin-top: 0; color: var(--accent2); }
.matrix-page .card .tag {
  display: inline-block; font-family: 'JetBrains', monospace;
  font-size: 0.7rem; color: var(--bg); background: var(--accent);
  padding: 0.15rem 0.5rem; border-radius: 4px; margin-bottom: 0.6rem;
}
/* ============== TABLE ============== */
.matrix-page .table-wrap { overflow-x: auto; overflow-y: auto; max-height: 600px; margin: 1.5rem 0; border: 1px solid var(--rule); border-radius: 8px; }
.matrix-page table { width: 100%; min-width: 600px; border-collapse: collapse; font-size: 0.88rem; }
.matrix-page thead { background: var(--bg3); position: sticky; top: 0; }
.matrix-page th {
  text-align: left; padding: 0.8rem 1rem; color: var(--accent2);
  font-family: 'JetBrains', monospace; font-size: 0.75rem;
  letter-spacing: 0.06em; text-transform: uppercase;
  border-bottom: 2px solid var(--accent);
}
.matrix-page td { padding: 0.7rem 1rem; border-bottom: 1px solid var(--rule); vertical-align: top; color: var(--ink); }
.matrix-page tbody tr:hover { background: var(--bg2); }
.matrix-page td.mono, .matrix-page th.mono { font-family: 'JetBrains', monospace; font-size: 0.85rem; }
.matrix-page td .hl { color: var(--accent); font-weight: 600; }
/* ============== FIGURES ============== */
.matrix-page figure { margin: 2rem 0; text-align: center; }
.matrix-page figure img, .matrix-page figure .mermaid { max-width: 100%; height: auto; }
.matrix-page .mermaid { background: var(--bg2); padding: 1.5rem; border-radius: 8px; }
.matrix-page figcaption { font-size: 0.82rem; color: var(--muted); margin-top: 0.6rem; font-style: italic; }
.matrix-page .chart-figure figcaption { font-size: 0.9rem; color: var(--ink); font-weight: 600; font-style: normal; margin-bottom: 0.75rem; }
/* ============== CALLOUTS ============== */
.matrix-page .callout {
  background: linear-gradient(135deg, rgba(254,44,85,0.08), rgba(37,244,238,0.06));
  border: 1px solid var(--rule); border-radius: 10px;
  padding: 1rem 1.2rem; margin: 1.5rem 0;
}
.matrix-page .callout .label {
  display: inline-block; font-family: 'JetBrains', monospace;
  font-size: 0.7rem; color: var(--bg); background: var(--accent2);
  padding: 0.2rem 0.6rem; border-radius: 4px; margin-bottom: 0.5rem;
  letter-spacing: 0.08em;
}
.matrix-page .callout strong { color: var(--accent2); }
/* ============== STEPS ============== */
.matrix-page .steps { counter-reset: step; list-style: none; padding: 0; }
.matrix-page .steps li {
  counter-increment: step;
  position: relative; padding: 0.8rem 0 0.8rem 3.2rem;
  border-left: 2px solid var(--rule);
  margin-left: 0.8rem;
}
.matrix-page .steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: -1.3rem; top: 0.8rem;
  width: 2.2rem; height: 2.2rem; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent);
  color: var(--accent); font-family: 'JetBrains', monospace;
  font-weight: 700; font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
}
.matrix-page .steps li strong { display: block; color: var(--accent2); margin-bottom: 0.2rem; }
/* ============== CHECKLIST ============== */
.matrix-page .checklist { list-style: none; padding-left: 0; }
.matrix-page .checklist li {
  padding: 0.5rem 0 0.5rem 2rem; position: relative;
  border-bottom: 1px dashed var(--rule);
}
.matrix-page .checklist li::before {
  content: '☐'; position: absolute; left: 0; color: var(--accent2);
  font-size: 1.1rem; line-height: 1;
}
.matrix-page .checklist li:last-child { border-bottom: none; }
/* ============== FOOTER SOURCES ============== */
.matrix-page .sources-footer { background: var(--bg2); border-top: 1px solid var(--rule); padding: 3rem 2rem 4rem; margin-top: 4rem; margin-left: 280px; }
.matrix-page .sources-footer .sources-wrap { max-width: 100%; margin: 0 auto; }
.matrix-page .sources-footer h2 {
  font-family: 'Bricolage', sans-serif; font-size: 1.4rem;
  color: var(--accent2); margin: 0 0 1.5rem; border-bottom: 2px solid var(--accent);
  padding-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.matrix-page .sources-footer h2 i {
  font-size: 1.2rem;
}
.matrix-page .sources-footer .sources ol {
  padding-left: 1.2rem; font-size: 0.85rem; color: var(--muted);
}
.matrix-page .sources-footer .sources li { margin-bottom: 0.6rem; line-height: 1.5; }
.matrix-page .sources-footer .sources .src-title { color: var(--ink); display: block; margin-bottom: 0.15rem; }
.matrix-page .sources-footer .sources .src-url {
  display: block; font-size: 0.78rem; color: var(--accent2);
  word-break: break-all; font-family: 'JetBrains', monospace;
}
.matrix-page .sources-footer .copyright {
  text-align: center; 
  font-size: 0.85rem; font-family: 'JetBrains', monospace;
}
/* ============== RESPONSIVE ============== */
@media (max-width: 1024px) {
  .matrix-page .toc-wrap { display: none; }
  .matrix-page main { margin-left: 0; padding: 0 1.5rem 4rem; max-width: 900px; }
  .matrix-page .sources-footer { margin-left: 0; padding: 3rem 1.5rem 4rem; }
}
@media (max-width: 768px) {
  .matrix-page .hero { padding: 4rem 1rem 3rem; }
  .matrix-page h1 { font-size: 2rem; }
  .matrix-page .grid-2, .matrix-page .grid-3 { grid-template-columns: 1fr; }
  .matrix-page h2 { font-size: 1.5rem; }
  .matrix-page main { padding: 0 1rem 3rem; }
}
/* ============== SITE HEADER & FOOTER INTEGRATION ============== */
.matrix-page .topbar {
  background: rgba(11, 11, 15, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--rule);
}
.matrix-page .topbar-search {
  background: var(--bg3);
  border-color: var(--rule);
}
.matrix-page .topbar-search:focus-within {
  border-color: rgba(37, 244, 238, 0.5);
  box-shadow: 0 0 0 3px rgba(37, 244, 238, 0.1);
}
.matrix-page .topbar-right a:hover {
  background: rgba(255, 255, 255, 0.05);
}
.matrix-page .topbar-right a.active {
  background: rgba(254, 44, 85, 0.15);
  color: var(--accent);
}
.matrix-page .topbar-right .btn-reg {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}
.matrix-page .topbar-right .btn-reg:hover {
  box-shadow: 0 4px 16px rgba(254, 44, 85, 0.4);
}
.matrix-page .topbar-right .avatar {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}
.matrix-page .topbar-right .avatar:hover {
  box-shadow: 0 0 0 3px rgba(254, 44, 85, 0.3);
}
.matrix-page .footer {
  background: var(--bg2);
  border-top-color: var(--rule);
  margin-top: 0;
  padding-top: 2.5rem;
}
.matrix-page .footer-section h4 {
  color: var(--accent2);
  font-family: 'Bricolage', sans-serif;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.85rem;
}
.matrix-page .footer-section ul li a {
  color: var(--muted);
  font-size: 0.85rem;
}
.matrix-page .footer-section ul li a:hover {
  color: var(--accent2);
}
.matrix-page .footer-logo .dot {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.matrix-page .footer-desc {
  color: var(--muted);
}
.matrix-page .footer-desc a {
  color: var(--accent2);
}