.page-hero { background: var(--navy-deep); padding: 128px 0 64px; position: relative; overflow: hidden; }
.page-hero-grid { position: absolute; inset: 0; opacity: 0.04; background-image: linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px); background-size: 60px 60px; }
.page-hero-glow { position: absolute; width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(21,101,192,0.2) 0%, transparent 70%); top: -200px; right: -100px; pointer-events: none; }
.page-hero-inner { max-width: 1180px; margin: 0 auto; padding: 0 32px; position: relative; z-index: 1; }
.breadcrumb { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; font-size: 13px; color: rgba(255,255,255,0.4); }
.breadcrumb a { color: rgba(255,255,255,0.55); transition: color .2s; }
.breadcrumb a:hover { color: white; }
.breadcrumb-sep { color: rgba(255,255,255,0.25); }
.page-tag { display: inline-block; font-size: 11.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #90CAF9; background: rgba(21,101,192,0.2); border: 1px solid rgba(21,101,192,0.3); border-radius: 100px; padding: 5px 14px; margin-bottom: 16px; }
.page-hero h1 { font-size: clamp(28px, 3.5vw, 44px); font-weight: 800; color: white; letter-spacing: -0.01em; margin-bottom: 14px; }
.page-hero-sub { font-size: 16.5px; color: rgba(255,255,255,0.55); font-weight: 300; max-width: 560px; line-height: 1.65; }
.page-meta { display: flex; gap: 24px; margin-top: 28px; flex-wrap: wrap; }
.page-meta-item { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,0.45); }
.page-meta-item svg { width: 14px; height: 14px; opacity: 0.7; }
.page-body { padding: 72px 0 96px; }
.page-layout { display: grid; grid-template-columns: 260px 1fr; gap: 56px; align-items: start; max-width: 1180px; margin: 0 auto; padding: 0 32px; }
.toc { position: sticky; top: 88px; }
.toc-label { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-soft); margin-bottom: 14px; }
.toc-list { border-left: 2px solid var(--border); }
.toc-list li a { display: block; padding: 7px 16px; font-size: 13.5px; color: var(--text-soft); transition: all .2s; border-left: 2px solid transparent; margin-left: -2px; line-height: 1.4; }
.toc-list li a:hover { color: var(--blue); border-left-color: var(--blue); background: var(--blue-pale); }
.toc-list li a.active { color: var(--blue); border-left-color: var(--blue); font-weight: 600; }
.prose { max-width: 780px; }
.prose-section { margin-bottom: 52px; }
.prose-section:last-child { margin-bottom: 0; }
.prose h2 { font-size: 22px; font-weight: 800; color: var(--navy); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 2px solid var(--blue-light); display: flex; align-items: center; gap: 10px; }
.prose h2 .sec-num { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 50%; background: var(--blue-mid); color: white; font-size: 12px; font-weight: 800; flex-shrink: 0; }
.prose h3 { font-size: 17px; font-weight: 700; color: var(--navy); margin: 28px 0 10px; }
.prose p { font-size: 15.5px; color: var(--text-mid); margin-bottom: 14px; line-height: 1.75; }
.prose ul { margin-bottom: 16px; padding-left: 0; }
.prose ul li { font-size: 15px; color: var(--text-mid); padding: 5px 0 5px 24px; position: relative; line-height: 1.65; }
.prose ul li::before { content: ''; position: absolute; left: 6px; top: 14px; width: 6px; height: 6px; border-radius: 50%; background: var(--blue-mid); opacity: 0.7; }
.prose ol { counter-reset: ol-counter; margin-bottom: 16px; padding-left: 0; }
.prose ol li { font-size: 15px; color: var(--text-mid); padding: 5px 0 5px 32px; position: relative; line-height: 1.65; counter-increment: ol-counter; }
.prose ol li::before { content: counter(ol-counter)"."; position: absolute; left: 4px; top: 5px; font-weight: 700; color: var(--blue); font-size: 13px; }
.prose a { color: var(--blue); text-decoration: underline; text-underline-offset: 2px; }
.prose a:hover { color: #1565C0; }
.prose strong { font-weight: 700; color: var(--navy); }
.info-box { background: var(--blue-pale); border: 1px solid rgba(21,101,192,0.2); border-left: 4px solid var(--blue-mid); border-radius: var(--radius-sm); padding: 18px 20px; margin: 20px 0; }
.info-box p { font-size: 14.5px; color: var(--text-mid); margin: 0; line-height: 1.65; }
.info-box strong { color: var(--navy); }
.warn-box { background: #FFF8E6; border: 1px solid rgba(212,160,23,0.25); border-left: 4px solid #D4A017; border-radius: var(--radius-sm); padding: 18px 20px; margin: 20px 0; }
.warn-box p { font-size: 14.5px; color: #5C4A00; margin: 0; line-height: 1.65; }
.data-table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.data-table th { background: var(--navy); color: white; padding: 11px 16px; text-align: left; font-weight: 700; font-size: 13px; letter-spacing: 0.02em; }
.data-table th:first-child { border-radius: 8px 0 0 0; }
.data-table th:last-child { border-radius: 0 8px 0 0; }
.data-table td { padding: 11px 16px; border-bottom: 1px solid var(--border); color: var(--text-mid); vertical-align: top; line-height: 1.55; }
.data-table tr:nth-child(even) td { background: var(--off-white); }
.data-table tr:last-child td { border-bottom: none; }
.section-tag-inline { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--blue); background: var(--blue-light); border-radius: 100px; padding: 3px 10px; margin-bottom: 8px; }

@media (max-width: 900px) {
  .page-layout { grid-template-columns: 1fr; }
  .toc { display: none; }
}