.page-main { max-width: 1060px; margin: 0 auto; padding: 64px 24px 88px; }
.page-hero { max-width: 820px; margin-bottom: 46px; }
.page-hero h1 { font: 600 clamp(2.6rem, 6vw, 4.9rem)/1 var(--serif); letter-spacing: -.045em; color: var(--forest-950); margin: 14px 0 16px; }
.page-hero p { color: #56635b; font-size: 1.08rem; max-width: 760px; }
.prose-grid { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 40px; align-items: start; }
.prose { min-width: 0; }
.prose section { padding: 30px 0; border-top: 1px solid var(--border); }
.prose section:first-child { border-top: 0; padding-top: 0; }
.prose h2 { font: 600 clamp(1.7rem, 3vw, 2.35rem)/1.12 var(--serif); color: var(--forest-950); margin: 0 0 12px; letter-spacing: -.025em; }
.prose h3 { color: var(--forest-950); margin: 24px 0 8px; font-size: 1.02rem; }
.prose p, .prose li { color: #566159; }
.prose li + li { margin-top: 8px; }
.prose code { padding: 2px 6px; border-radius: 6px; background: #eef2ed; color: var(--forest-900); font-size: .9em; }
.method-card { background: var(--paper); border: 1px solid var(--border); border-radius: 16px; padding: 18px; box-shadow: var(--shadow-sm); margin: 18px 0; }
.method-card strong { color: var(--forest-950); }
.formula { display: block; padding: 14px 16px; margin: 10px 0; border-radius: 12px; background: var(--forest-950); color: #f6f4ed; overflow-x: auto; white-space: nowrap; font-size: .84rem; }
.source-directory { display: grid; gap: 12px; margin-top: 18px; }
.source-directory article { padding: 16px; border: 1px solid var(--border); border-radius: 14px; background: #fff; }
.source-directory strong { display: block; color: var(--forest-950); }
.source-directory span { color: var(--muted); font-size: .76rem; }
.source-directory p { margin: 7px 0 9px; font-size: .86rem; }
.source-directory a { font-weight: 750; font-size: .83rem; }
.page-aside { position: sticky; top: 98px; display: grid; gap: 12px; }
.aside-card { background: var(--forest-950); color: #fff; border-radius: 17px; padding: 20px; }
.aside-card h2 { font: 600 1.35rem var(--serif); margin: 0 0 8px; }
.aside-card p { color: #c8d2cc; font-size: .85rem; margin: 0 0 14px; }
.aside-card .button { width: 100%; }
.aside-card.light { background: var(--paper); color: var(--ink); border: 1px solid var(--border); }
.aside-card.light p { color: var(--muted); }
.mini-list { list-style: none; padding: 0; margin: 0; }
.mini-list li { padding: 8px 0; border-top: 1px solid rgba(255,255,255,.12); font-size: .8rem; }
.mini-list li:first-child { border-top: 0; }
@media (max-width: 820px) { .prose-grid { grid-template-columns: 1fr; } .page-aside { position: static; grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (max-width: 560px) { .page-main { padding: 44px 17px 70px; } .page-aside { grid-template-columns: 1fr; } }