.article-page {
  background: #fbfcfe;
  color: #202938;
  line-height: 1.72;
  margin: 0;
}

.article-nav {
  box-sizing: border-box;
  margin: 0 auto;
  max-width: 860px;
  padding: 30px 28px 8px;
}

.article-nav a {
  font-weight: 700;
}

.article-shell {
  box-sizing: border-box;
  margin: 0 auto;
  max-width: 860px;
  padding: 42px 28px 70px;
}

.article-header {
  border-bottom: 1px solid #dfe6ef;
  margin-bottom: 42px;
  padding-bottom: 34px;
}

.article-header h1 {
  color: #152235;
  font-size: clamp(34px, 6vw, 52px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin: 10px 0 18px;
}

.article-meta {
  color: #1772d0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin: 0;
  text-transform: uppercase;
}

.article-deck {
  color: #536174;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 19px;
  line-height: 1.55;
  margin: 0;
  max-width: 720px;
}

.article-note {
  background: #fff8e8;
  border: 1px solid #f1dfb5;
  border-left: 4px solid #d99a22;
  border-radius: 8px;
  color: #5a4826;
  margin: 0 0 32px;
  padding: 14px 18px;
}

.article-note p,
.article-note strong {
  font-size: 14px;
}

.article-note p:last-child {
  margin-bottom: 0;
}

.article-content,
.article-content p,
.article-content li,
.article-content a,
.article-content strong {
  font-size: 16px;
}

.article-content > h1:first-child {
  display: none;
}

.article-content h2 {
  color: #172438;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.24;
  margin: 54px 0 18px;
}

.article-content h3 {
  color: #25354b;
  font-size: 20px;
  line-height: 1.35;
  margin: 34px 0 12px;
}

.article-content p {
  margin: 0 0 20px;
}

.article-content ul,
.article-content ol {
  margin: 0 0 22px;
  padding-left: 28px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  background: #f1f6fb;
  border-left: 4px solid #1772d0;
  color: #31445d;
  margin: 28px 0;
  padding: 16px 22px;
}

.article-content blockquote p:last-child {
  margin-bottom: 0;
}

.article-content pre {
  background: #142033;
  border-radius: 10px;
  color: #e6edf7;
  font-size: 13px;
  line-height: 1.6;
  margin: 24px 0;
  overflow-x: auto;
  padding: 20px;
}

.article-content code {
  background: #edf2f7;
  border-radius: 4px;
  font-family: SFMono-Regular, Consolas, 'Liberation Mono', monospace;
  font-size: 0.88em;
  padding: 2px 5px;
}

.article-content pre code {
  background: transparent;
  font-size: inherit;
  padding: 0;
}

.article-content hr {
  border: 0;
  border-top: 1px solid #dfe6ef;
  margin: 46px 0;
}

.article-content mjx-container[display="true"] {
  box-sizing: border-box;
  display: block !important;
  margin: 28px 0 !important;
  max-width: 100%;
  min-width: 0 !important;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 4px 0;
  width: 100%;
}

.article-footer {
  border-top: 1px solid #dfe6ef;
  margin-top: 58px;
  padding-top: 24px;
}

.article-footer a {
  font-size: 14px;
  font-weight: 700;
}

@media (max-width: 600px) {
  .article-nav {
    padding: 22px 20px 4px;
  }

  .article-shell {
    padding: 32px 20px 52px;
  }

  .article-header {
    margin-bottom: 32px;
    padding-bottom: 28px;
  }

  .article-header h1 {
    font-size: 34px;
  }

  .article-deck {
    font-size: 17px;
  }

  .article-content,
  .article-content p,
  .article-content li,
  .article-content a,
  .article-content strong {
    font-size: 15px;
  }

  .article-content h2 {
    font-size: 24px;
    margin-top: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}