:root {
  --primary: #0046fc;
  --primary-hover: #528bfa;
  --primary-dark: #003bc9;
  --primary-soft: #eaf0fe;
  --accent: #f89524;
  --accent-dark: #d67a0e;
  --accent-soft: #fef1e0;
  --n0: #fff;
  --n25: #fcfcfd;
  --n50: #f8fafd;
  --n100: #eef1f5;
  --n150: #e2e6ea;
  --n200: #d5dce4;
  --n300: #b4bdc9;
  --n400: #8b95a7;
  --n500: #6b7280;
  --n600: #4b5563;
  --n700: #374151;
  --n800: #1f2937;
  --n900: #0f172a;
  --success: #10b981;
  --success-soft: #dcfce7;
  --success-dark: #047857;
  --warning: #f59e0b;
  --warning-soft: #fef3c7;
  --font-display: "Mulish", sans-serif;
  --font-body: "Roboto", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --r: 8px;
  --rl: 12px;
  --rxl: 16px;
  --sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --md: 0 4px 16px rgba(15, 23, 42, 0.06);
  --lg: 0 12px 32px rgba(0, 70, 252, 0.1);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: var(--lg);
  transform: translateY(-1px);
}
.btn-gh {
  border-color: var(--n150);
}
.btn-gh:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
}

.mention .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--primary);
  color: var(--primary-dark);
  padding: 6px 14px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
  box-shadow: var(--sm);
}
.mention .hero-tag i {
  color: var(--primary);
}
  .mention h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 4vw, 46px)!important;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--n900);
  margin-bottom: 16px;
}
.mention  h1 .ac {
  color: var(--primary);
}
.mention  p {
  font-size: 17px;
  color: var(--n600);
  line-height: 1.65;
  margin-bottom: 14px;
}
.mention .hero-meta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.hm {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--n500);
  font-family: var(--font-display);
  font-weight: 600;
}
.hm i {
  color: var(--primary);
  font-size: 14px;
}
.lay {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 40px 80px;
}
.toc {
  position: sticky;
  top: 160px;
  align-self: start;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
}
.toc-t {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  color: var(--n500);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--n150);
}
.toc-l {
  list-style: none!important;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.toc-l a {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--n600);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 0 var(--r) var(--r) 0;
  transition: all 0.2s;
  line-height: 1.4;
}
.toc-l a:hover {
  background: var(--primary-soft);
  color: var(--primary);
}
.toc-l a.active {
  background: var(--primary-soft);
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 600;
}
.content {
  max-width: 780px;
}

.secm h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.5vw, 28px)!important;
  font-weight: 900;
  letter-spacing: -0.025em;
  color: var(--n900);
  margin-bottom: 16px;
  line-height: 1.25;
}
.secm h2 .num {
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.7em;
  margin-right: 10px;
}
.secm h3 {
  font-family: var(--font-display);
  font-size: 17px!important;
  font-weight: 800;
  color: var(--n900);
  margin: 20px 0 8px;
  letter-spacing: -0.01em;
}
.secm p {
  margin-bottom: 14px;
  color: var(--n700);
  font-size: 15px;
  line-height: 1.75;
}
.secm p strong {
  color: var(--n900);
  font-weight: 600;
}
.secm a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: var(--primary-soft);
  text-underline-offset: 3px;
  font-weight: 500;
}
.secm a:hover {
  text-decoration-color: var(--primary);
}
.secm ul {
  margin-bottom: 14px;
  padding-left: 22px;
}
.secm ul li {
  margin-bottom: 6px;
  color: var(--n700);
  line-height: 1.7;
}
.secm ul li strong {
  color: var(--n900);
  font-weight: 600;
}
.info-tbl {
  background: #fff;
  border: 1px solid var(--n100);
  border-radius: var(--rl);
  overflow: hidden;
  margin: 18px 0;
  box-shadow: var(--sm);
}
.info-r {
  display: grid;
  grid-template-columns: 200px 1fr;
  border-bottom: 1px solid var(--n100);
}
.info-r:last-child {
  border-bottom: none;
}
.info-l {
  padding: 12px 18px;
  background: var(--n25);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  color: var(--n700);
  display: flex;
  align-items: center;
}
.info-v {
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--n900);
}
.cb {
  background: var(--primary-soft);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--r) var(--r) 0;
  padding: 14px 20px;
  margin: 18px 0;
}
.cb-l {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.cb-tx {
  font-size: 14px;
  color: var(--n700);
  line-height: 1.65;
}
.cb-tx strong {
  color: var(--n900);
  font-weight: 600;
}
.cb.warn {
  background: var(--warning-soft);
  border-left-color: var(--warning);
}
.cb.warn .cb-l {
  color: #92400e;
}
.cta-end {
  margin-top: 48px;
  padding: 32px;
  background: linear-gradient(135deg, var(--primary-soft), #fff);
  border: 1px solid var(--primary-soft);
  border-radius: var(--rxl);
}
.cta-end h3 {
  font-family: var(--font-display);
  font-size: 20px!important;
  font-weight: 800;
  color: var(--n900);
  margin-bottom: 8px;
}
.cta-end p {
  font-size: 14px;
  color: var(--n600);
  margin-bottom: 16px;
}
.cta-end .cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
footer {
  background: var(--n900);
  color: #fff;
  padding: 60px 40px 32px;
}
.f-i {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}
.f-b {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
}
.f-l {
  display: flex;
  gap: 28px;
  font-size: 13px;
  flex-wrap: wrap;
}
.f-l a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color 0.2s;
}
.f-l a:hover {
  color: var(--accent);
}
.f-c {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
}
@media (max-width: 1024px) {
  .lay {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px 20px 60px;
  }
  .toc {
    position: relative;
    top: auto;
    max-height: none;
    padding: 20px;
    background: var(--n25);
    border-radius: var(--rxl);
  }
  .toc-l a {
    padding: 10px 14px;
  }
}
@media (max-width: 768px) {
  .nav {
    padding: 12px 20px;
  }
  .nav-bc {
    display: none;
  }
  .hero {
    padding: 90px 20px 40px;
  }
  .info-r {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .info-l {
    padding: 8px 14px 4px;
  }
  .info-v {
    padding: 0 14px 8px;
  }
  .f-i {
    flex-direction: column;
    text-align: center;
  }
}