body{margin:0;background:#f4f6f8;color:#202124;font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}main{max-width:960px;margin:32px auto;padding:42px 54px;background:#fff;box-shadow:0 2px 12px #0001}h1{font-size:32px;border-bottom:2px solid #1677ff;padding-bottom:14px}h2{margin-top:42px;color:#125ab0;border-bottom:1px solid #e5e7eb;padding-bottom:8px}h3{margin-top:30px;color:#1f4b7a}h4{margin-top:24px}p{margin:10px 0}ul{padding-left:26px}blockquote{margin:18px 0;padding:12px 16px;border-left:4px solid #f0ad4e;background:#fff8e6;color:#765000}pre{padding:16px;overflow:auto;background:#1f2937;color:#e5e7eb;border-radius:6px;white-space:pre-wrap}code{font-family:Consolas,"Courier New",monospace;background:#f1f3f5;padding:1px 5px;border-radius:3px}pre code{padding:0;background:transparent}img{display:block;max-width:100%;height:auto;margin:20px auto;border:1px solid #ddd;border-radius:5px}strong{font-weight:700}footer{margin-top:48px;padding-top:16px;border-top:1px solid #ddd;color:#6b7280;font-size:13px}@media print{body{background:#fff}main{margin:0;box-shadow:none;max-width:none}}

.guide-toolbar{position:sticky;top:0;z-index:5;background:#172436;color:#edf2f7;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px max(20px,calc((100vw - 960px)/2));border-bottom:1px solid #34465b}.guide-toolbar span{font-size:13px}.guide-controls{display:flex;gap:14px;align-items:center}.guide-controls select{font:14px/1.5 Arial,sans-serif;color:inherit;background:#22374e;border:1px solid #58728f;border-radius:4px;padding:8px 12px;text-decoration:none}.guide-controls option{background:#172436}.guide-controls select:focus-visible{outline:2px solid #b5d1ed;outline-offset:3px}.guide-controls label{display:flex;align-items:center;gap:8px;font-size:13px}main{overflow-wrap:anywhere}img{min-width:0}h1,h2,h3,h4{scroll-margin-top:100px}@media(max-width:600px){.guide-toolbar{position:static;flex-wrap:wrap;padding:12px 16px}.guide-controls{flex-wrap:wrap;gap:10px}main{margin:16px 0;padding:25px 20px}h1{font-size:27px}.guide-toolbar>span{width:100%}}@media print{.guide-toolbar{display:none}}