.hero{padding:40px 0 24px;max-width:800px}.hero h1{font-size:44px;margin:12px 0 14px}.hero p{font-size:17px;max-width:630px}.search-panel{position:sticky;top:0;z-index:10;background:var(--bg);padding:16px 0;border-bottom:1px solid var(--line);margin-bottom:28px}.search-panel form{display:flex;gap:10px}.search-panel input{flex:1;min-width:0;padding:15px 18px;font-size:16px}.search-panel select{max-width:220px}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:baseline}.category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.category-card{display:flex;flex-direction:column;gap:9px;padding:22px;border:1px solid var(--line);border-radius:12px;background:white;transition:border-color .15s}.category-card:hover{border-color:#88a8dc;text-decoration:none}.category-card strong{font-size:17px;color:var(--ink)}.category-card small{color:var(--muted)}.category-icon{display:flex;justify-content:center;align-items:center;width:36px;height:36px;border-radius:9px;background:#ecf2fe;color:#2563eb;font-size:16px;font-weight:700}.result-list{display:grid;gap:12px}.result-card{display:block;background:white;border:1px solid var(--line);border-radius:12px;padding:20px 24px;color:var(--ink)}.result-card:hover{border-color:#88a8dc;text-decoration:none}.result-card h3{color:#224c96;margin:6px 0 9px}.result-card p{font-size:14px;color:var(--muted);margin:0}.result-card small{color:var(--muted)}.support-callout{margin-top:32px;background:#eaf1fd;border:1px solid #d1dff7;padding:26px;border-radius:14px;display:flex;justify-content:space-between;align-items:center;gap:20px}.support-callout h2{font-size:21px;margin:0 0 8px}.support-callout p{margin:0}.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin:16px 0 24px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:30px;align-items:start}.article-panel{padding:38px;overflow:hidden}.article-panel h1{font-size:34px;margin:10px 0 15px}.article-body{line-height:1.85;font-size:16px;overflow-wrap:anywhere}.article-body h2{font-size:23px;margin:32px 0 14px;scroll-margin-top:140px}.article-body h3{font-size:18px;scroll-margin-top:140px}.article-body p{margin:0 0 16px}.article-body li{margin-bottom:9px}.article-body img{max-width:100%;height:auto;border-radius:9px}.article-body pre{overflow:auto;background:#f1f5fa;border-radius:8px;padding:16px}.article-body code{background:#f1f5fa;padding:2px 5px;font-size:14px}.article-body table{display:block;overflow:auto;border-collapse:collapse;max-width:100%;margin-bottom:20px}.article-body th,.article-body td{border:1px solid var(--line);padding:10px;text-align:left}.article-body th{background:#f1f5fa}.article-body .tip,.article-body blockquote{border-left:3px solid #3b82f6;background:#eff6ff;padding:16px;margin:18px 0}.article-body .warn{border-left:3px solid #d69b19;background:#fff9e9;padding:16px;margin:18px 0}.article-aside{position:sticky;top:110px}.article-aside a{display:block;font-size:14px;padding:7px 0}.article-aside h2{font-size:16px;margin-top:0}.article-meta{font-size:13px;color:var(--muted);padding-bottom:24px;border-bottom:1px solid var(--line);margin-bottom:26px}.video{position:relative;aspect-ratio:16/9;margin-bottom:24px}.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0;border-radius:10px}.quick-links{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.quick-links a{background:white;border:1px solid var(--line);padding:7px 13px;border-radius:24px;font-size:13px}.footer{padding:24px;text-align:center;border-top:1px solid var(--line);color:var(--muted);font-size:13px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(max-width:850px){.hero{padding-top:18px}.hero h1{font-size:34px}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{display:flex;flex-direction:column}.article-panel{padding:24px;width:100%}.article-panel h1{font-size:28px}.article-aside{position:static;width:100%}.search-panel form{flex-wrap:wrap}.search-panel select{max-width:none;flex:1}.support-callout{align-items:flex-start;flex-direction:column}}@media(max-width:480px){.category-grid{grid-template-columns:1fr}.hero h1{font-size:30px}.category-card{padding:18px}.search-panel button{padding:10px}.article-panel{padding:20px}}

@media(max-width:480px){.search-panel input{flex-basis:100%;width:100%}}