.article-wrap{max-width:900px}.article-hero{padding-bottom:42px}.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--muted);font-size:.85rem;margin-bottom:24px}.breadcrumb a{color:var(--green)}.article-meta{color:var(--muted);font-size:.9rem;margin:18px 0 24px}.article-layout{display:grid;grid-template-columns:240px minmax(0,760px);gap:54px;align-items:start;margin-top:54px;margin-bottom:80px}.toc{position:sticky;top:96px;display:grid;gap:10px;border:1px solid var(--line);background:#fff;border-radius:16px;padding:18px}.toc strong{margin-bottom:4px}.toc a{color:var(--muted);text-decoration:none;font-size:.9rem}.toc a:hover{color:var(--green)}.article-body{min-width:0}.article-body section{scroll-margin-top:100px;margin-bottom:52px}.article-body h2{font-size:clamp(1.7rem,3vw,2.35rem);margin-bottom:18px}.article-body h3{font-size:1.2rem;margin:28px 0 10px}.article-body p,.article-body li{color:#45544e}.article-body a{color:var(--green)}.article-body li+li{margin-top:9px}.callout{border-left:4px solid var(--gold);background:#fff7e5;border-radius:0 14px 14px 0;padding:18px 20px;margin:26px 0}.formula{background:#123c31;color:#fff;border-radius:14px;padding:16px 18px;font-weight:800;margin:12px 0}.check-list{padding-left:22px}.example-box{border:1px solid var(--line);background:#fff;border-radius:18px;padding:10px 20px;margin:22px 0}.example-box div{display:flex;justify-content:space-between;gap:20px;padding:12px 0;border-bottom:1px solid var(--line)}.example-box div:last-child{border-bottom:0}.example-total{font-size:1.1rem;color:var(--green)}.sources{border-top:1px solid var(--line);padding-top:36px}@media(max-width:800px){.article-layout{grid-template-columns:1fr;gap:28px;margin-top:34px}.toc{position:relative;top:auto}}@media(max-width:520px){.example-box div{align-items:flex-start;flex-direction:column;gap:3px}.article-hero h1{font-size:2.2rem}}