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48px,1120px);margin:0 auto;padding-bottom:112px}.help-group+.help-group{margin-top:72px}.help-group-header{max-width:720px;margin-bottom:24px}.help-group-header h2{font-size:2rem}.help-group-header p{color:var(--muted);margin-top:10px;font-size:1.02rem}.help-grid{width:100%;padding-bottom:0}@media (width<=820px){.content-nav-links{display:none}.collection-grid,.download-card{grid-template-columns:1fr}.content-footer{grid-template-columns:1fr 1fr}}@media (width<=560px){.collection-hero,.article-shell,.download-shell,.not-found-shell,.collection-grid,.help-groups{width:min(100% - 32px,880px)}.collection-hero,.article-shell,.download-shell,.not-found-shell{padding-top:76px}.content-footer{grid-template-columns:1fr}}.not-found-localized{border-top:1px solid var(--line);margin-top:40px;padding-top:32px}html[lang=zh-CN] .article-body{line-height:1.9}@media (width<=720px){html[lang=zh-CN] .download-shell h1{font-size:2.25rem}}.case-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;display:grid}.case-card{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface-warm);flex-direction:column;align-items:flex-start;padding:32px;display:flex}.case-card:nth-child(2n){background:var(--paper-deep)}.case-card-family{grid-column:1/-1}.case-card h2,.case-card h3{margin:18px 0 14px;font-size:1.7rem;line-height:1.3}.case-card h2 a,.case-card h3 a{text-decoration:none}.case-card-copy{flex-direction:column;flex:1;align-items:flex-start;min-width:0;display:flex}.case-card-copy>p:not(.eyebrow){color:var(--ink-soft);margin:0 0 24px}.case-card-everyday{grid-column:1/-1;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);align-items:center;gap:36px;display:grid}.case-link{color:var(--brand-primary-strong);text-underline-offset:4px;margin-top:auto;font-weight:650}.case-delivery{border-top:1px solid var(--line);margin:64px 0;padding-top:40px}.case-delivery h2{margin-bottom:28px}.case-delivery h3{margin-bottom:14px}.case-delivery p{color:var(--ink-soft)}.case-next{background:var(--surface-warm);border:1px solid var(--line);border-radius:var(--radius-card);margin-top:40px;padding:28px}.case-next p{margin:16px 0 24px}.featured-cases{background:var(--surface-warm)}@media (width<=720px){.case-grid{grid-template-columns:1fr}.case-card{padding:24px}.case-hero h1{font-size:2.5rem}}.content-main>.case-grid{width:min(100% - 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