/* Desktop values retain the supplied v7 reference; additions cover real content and smaller screens. */
*{box-sizing:border-box}
body{margin:0;background:#f3f3f1;color:#111;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
.container{max-width:1200px;margin:auto;background:#fff;min-height:100vh}
.site-header{padding:34px 56px;border-bottom:1px solid #eee;display:flex;justify-content:space-between;align-items:center;gap:24px}
.logo{font-size:34px;font-weight:800;text-decoration:none;color:#111;line-height:1.2}
.subtitle{margin-top:8px;color:#777;font-size:14px}
nav{display:flex;flex-shrink:0;gap:26px}
nav a{text-decoration:none;color:#333;white-space:nowrap}
nav a[aria-current="page"]{color:#111;font-weight:600}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:40px;padding:40px 56px}
main{min-width:0}
.card{display:flex;gap:24px;padding:24px 0;border-bottom:1px solid #eee;text-decoration:none;color:inherit}
.thumb{width:220px;aspect-ratio:16/9;background:#ddd;flex-shrink:0;align-self:flex-start;overflow:hidden}
.thumb img{display:block;width:100%;height:100%;object-fit:contain}
.card-text{min-width:0;overflow-wrap:anywhere}
.meta,.category{font-size:14px;color:#888}
.category a{color:inherit;text-decoration:none}
.card h3{font-size:28px;margin:10px 0;line-height:1.35}
.card p{color:#555;line-height:1.8}
.sidebar{border-left:1px solid #eee;padding-left:28px;min-width:0}
.random-list{list-style:none;margin:0;padding:0}
.sidebar a{display:block;color:#333;text-decoration:none;padding:12px 0;border-bottom:1px solid #eee;line-height:1.6;overflow-wrap:anywhere}
.article{max-width:850px;margin:auto;padding:50px 56px}
.article-title{font-size:48px;line-height:1.3;overflow-wrap:anywhere}
.article-content{margin-top:34px;overflow-wrap:anywhere;font-size:18px;line-height:2;color:#333}
.article-content p{font-size:18px;line-height:2;color:#333;margin:1.25em 0}
.article-content h1,.article-content h2,.article-content h3{color:#111;line-height:1.5;margin:1.8em 0 .65em}
.article-content h1{font-size:34px}
.article-content h2{font-size:28px}
.article-content h3{font-size:22px}
.article-content ul,.article-content ol{padding-left:1.6em}
.article-content li{margin:.35em 0}
.article-content blockquote{margin:1.4em 0;padding:2px 24px;border-left:3px solid #ddd;background:#f8f8f7;color:#666}
.article-content blockquote p{color:inherit}
.article-content a{color:#333;text-decoration-color:#bbb;text-underline-offset:4px}
.article-content img{display:block;max-width:100%;height:auto;margin:32px auto}
.article-content img.portrait{max-width:min(100%,500px)}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.85em}
:not(pre)>code{background:#f3f3f1;padding:2px 5px;overflow-wrap:anywhere}
.article-content pre{max-width:100%;overflow-x:auto;background:#f5f5f3;padding:20px 24px;line-height:1.7;white-space:pre;overflow-wrap:normal}
pre code{font-size:14px}
.table-scroll{max-width:100%;overflow-x:auto;margin:1.6em 0}
.article-content table{border-collapse:collapse;font-size:15px;line-height:1.7;min-width:100%}
.article-content th,.article-content td{padding:12px 16px;border:1px solid #e5e5e5;text-align:left;white-space:nowrap}
.article-content th{background:#f5f5f3;font-weight:600}
.article-content hr{border:0;border-top:1px solid #eee;margin:40px 0}
.article-return{margin-top:50px;padding-top:24px;border-top:1px solid #eee;font-size:14px}
.article-return a{color:#777;text-decoration:none}
.version{font-size:12px;color:#aaa;text-align:right;padding:10px 56px 20px}
footer{padding:30px 56px;border-top:1px solid #eee;color:#777;font-size:16px}
.demo-note{display:block;font-size:12px;color:#999;margin-top:8px}
a:hover{color:#111}
.card:hover h3,.sidebar a:hover,nav a:hover{text-decoration:underline;text-decoration-color:#bbb;text-underline-offset:5px}
:focus-visible{outline:2px solid #555;outline-offset:4px}
.skip-link{position:absolute;left:16px;top:-80px;color:#111;background:#fff;padding:12px;z-index:1}
.skip-link:focus{top:8px}
@media(max-width:1100px){
  .site-header{padding:30px 40px}
  .layout{padding:36px 40px;grid-template-columns:minmax(0,1fr) 220px;gap:32px}
  .sidebar{padding-left:24px}
  footer{padding:30px 40px}
  .version{padding-right:40px}
}
@media(max-width:900px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .sidebar{border-left:0;border-top:1px solid #eee;padding:24px 0 0}
  .random-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px}
  .article{padding:44px 40px}
  .article-title{font-size:40px}
}
@media(max-width:600px){
  .site-header{padding:26px 24px;flex-direction:column;align-items:flex-start;gap:24px}
  .logo{font-size:30px}
  .subtitle{line-height:1.6}
  nav{gap:28px}
  .layout{padding:24px;gap:32px}
  .layout h2{font-size:22px}
  .card{flex-direction:column;gap:18px;padding:24px 0}
  .thumb{width:100%}
  .card h3{font-size:25px}
  .card p{margin-bottom:0;font-size:16px}
  .random-list{grid-template-columns:minmax(0,1fr)}
  .article{padding:32px 24px}
  .article-title{font-size:34px;margin:20px 0}
  .article-content{margin-top:30px;font-size:17px}
  .article-content p{font-size:17px}
  .article-content h1{font-size:30px}
  .article-content h2{font-size:25px}
  .article-content h3{font-size:21px}
  .article-content blockquote{padding:2px 18px}
  .article-content pre{padding:18px 16px}
  footer{padding:28px 24px}
  .version{padding:10px 24px 20px}
}