.article-page { padding-bottom: 0; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 1000; background: #fff; color: #3730a3; padding: 12px 18px; border-radius: 10px; }
.skip-link:focus { top: 10px; }
.reading-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.95); backdrop-filter: blur(12px); border-bottom: 1px solid #e0e7ff; }
.reading-header-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-top: 14px; padding-bottom: 14px; }
.reading-brand { display: flex; align-items: center; color: #4338ca; font-weight: 800; font-size: 1.25rem; text-decoration: none; gap: 10px; }
.reading-brand img { width: 72px; height: auto; }
.reading-header nav { display: flex; gap: 22px; flex-shrink: 0; }
.reading-header nav a, .reading-footer a { color: #4338ca; text-decoration: none; font-size: .9rem; }
.reading-shell { max-width: 1220px; }
.breadcrumbs { padding: 28px 0 14px; color: #64748b; font-size: .82rem; overflow-wrap: anywhere; }
.breadcrumbs a { color: #4f46e5; }
.article-intro { padding: 24px 0 38px; max-width: 940px; }
.article-kicker { display: inline-block; border: 1px solid #c7d2fe; background: #eef2ff; color: #4338ca; font-size: .8rem; font-weight: 700; letter-spacing: .06em; padding: 6px 14px; border-radius: 40px; }
.article-intro h1 { margin: 22px 0 20px; font-size: clamp(2rem,4vw,3.2rem); line-height: 1.25; letter-spacing: -.03em; }
.article-summary { color: #475569; font-size: 1.12rem; line-height: 1.9; max-width: 860px; }
.reading-meta { color: #64748b; margin-top: 18px; font-size: .82rem; }
.reading-layout { display: grid; grid-template-columns: 238px minmax(0,1fr); gap: 38px; align-items: start; }
.reading-sidebar { position: sticky; top: 106px; background: #fff; padding: 24px; border-radius: 20px; border: 1px solid #e2e8f0; }
.reading-sidebar h2 { font-size: 1rem; margin-bottom: 16px; }
.reading-sidebar ol { padding-left: 20px; color: #a5b4fc; }
.reading-sidebar li { margin: 11px 0; padding-left: 4px; }
.reading-sidebar a { color: #475569; text-decoration: none; font-size: .85rem; line-height: 1.6; }
.reading-sidebar .sidebar-back { color: #4f46e5; display: block; border-top: 1px solid #e2e8f0; padding-top: 18px; margin-top: 20px; font-weight: 700; }
.article-content { min-width: 0; background: #fff; border: 1px solid #e2e8f0; border-radius: 28px; padding: 32px 40px; box-shadow: 0 12px 40px rgba(79,70,229,.045); }
.article-figure { margin: 0 0 24px; }
.article-figure img { display: block; width: 100%; height: auto; border-radius: 18px; background: #eef2ff; }
.article-figure figcaption { color: #64748b; margin-top: 10px; font-size: .78rem; line-height: 1.6; }
.answer-panel { padding: 22px 24px; border-left: 4px solid #6366f1; background: linear-gradient(110deg,#eef2ff,#f5f3ff); border-radius: 0 18px 18px 0; }
.answer-panel span { font-size: .8rem; letter-spacing: .08em; color: #4f46e5; font-weight: 800; }
.answer-panel p { color: #312e81; line-height: 1.9; margin: 8px 0 0; }
.article-content section { margin-top: 38px; scroll-margin-top: 104px; }
.article-content h2 { font-size: 1.45rem; line-height: 1.45; margin-bottom: 16px; }
.article-content p { line-height: 1.95; color: #475569; margin-bottom: 15px; }
.article-content ul, .article-content ol { padding-left: 24px; color: #475569; }
.article-content li { margin: 10px 0; line-height: 1.85; overflow-wrap: anywhere; }
.article-content a { color: #4338ca; text-underline-offset: 3px; overflow-wrap: anywhere; }
.article-table-wrap { overflow-x: auto; margin: 22px 0; border: 1px solid #e0e7ff; border-radius: 14px; }
.article-table { width: 100%; min-width: 480px; border-collapse: collapse; font-size: .88rem; }
.article-table th, .article-table td { text-align: left; padding: 14px 16px; vertical-align: top; border-bottom: 1px solid #e0e7ff; line-height: 1.75; }
.article-table th { background: #eef2ff; color: #312e81; font-weight: 700; }
.article-table tr:last-child td { border-bottom: 0; }
.article-table td { color: #475569; }
.article-takeaways { padding: 24px; background: #f5f3ff; border-radius: 18px; }
.source-panel { border-top: 1px solid #e0e7ff; padding-top: 28px; }
.source-panel p, .source-panel li { font-size: .88rem; }
.source-panel li small { display: block; color: #64748b; overflow-wrap: anywhere; }
.reading-related { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.reading-related a { text-decoration: none; border: 1px solid #e0e7ff; background: #f8faff; padding: 18px; border-radius: 16px; font-weight: 700; }
.reading-related small { display: block; font-size: .75rem; color: #64748b; margin-bottom: 8px; font-weight: 500; }
.reading-footer { padding-top: 38px; padding-bottom: 38px; max-width: 1220px; color: #64748b; font-size: .82rem; }
.reading-footer p { margin-bottom: 8px; }
.reading-footer a { display: inline-block; margin: 10px 22px 0 0; }
.article-page :focus-visible { outline: 3px solid #a5b4fc; outline-offset: 4px; border-radius: 4px; }
@media (max-width: 900px) { .reading-layout { grid-template-columns: 190px minmax(0,1fr); gap: 20px; } .reading-sidebar { padding: 18px; } .article-content { padding: 26px; } }
@media (max-width: 768px) {
  .article-page { padding-bottom: 0; }
  .reading-header-inner { flex-wrap: wrap; gap: 10px; padding-top: 10px; padding-bottom: 12px; }
  .reading-brand { font-size: 1.04rem; }
  .reading-brand img { width: 57px; }
  .reading-header nav { width: 100%; gap: 25px; padding-left: 2px; }
  .reading-header nav a { font-size: .79rem; }
  .reading-shell { padding: 0 16px; }
  .breadcrumbs { padding-top: 22px; }
  .article-intro { padding: 12px 0 24px; }
  .article-intro h1 { font-size: 1.85rem; margin: 18px 0; }
  .article-summary { font-size: 1rem; }
  .reading-layout { display: block; }
  .reading-sidebar { position: static; margin-bottom: 20px; padding: 20px; scroll-margin-top: 120px; }
  .reading-sidebar ol { columns: 1; }
  .reading-sidebar li { margin: 6px 0; }
  .article-content { padding: 20px 18px; border-radius: 20px; }
  .article-content h2 { font-size: 1.25rem; }
  .article-content p, .article-content li { font-size: .95rem; }
  .article-content section { scroll-margin-top: 120px; margin-top: 30px; }
  .answer-panel, .article-takeaways { padding: 18px; }
  .reading-related { grid-template-columns: 1fr; }
}