:root{--navy:#102e41;--ink:#193342;--muted:#63727d;--orange:#f58a38;--soft:#f3f6f7;--line:#dde4e8;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;color:var(--ink);background:#fff;font:16px/1.8 "Microsoft YaHei","PingFang SC",system-ui,sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:4px}button{cursor:pointer}img{max-width:100%;display:block}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{line-height:1.4}h2{font-size:34px;letter-spacing:-1px}h3{font-size:22px}p{color:var(--muted)}.container{width:min(1200px,calc(100% - 80px));margin-inline:auto}.skip-link{position:absolute;top:-100px;background:var(--navy);color:#fff;padding:10px;z-index:20}.skip-link:focus{top:0}.topbar{background:var(--navy);font-size:12px;color:#c5d2d9}.topbar .container{display:flex;justify-content:space-between;padding-block:9px}.site-header{position:sticky;top:0;z-index:10;background:#fff;border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:90px;gap:20px}.brand{display:flex;gap:12px;align-items:center;flex-shrink:0}.brand-symbol{background:var(--navy);color:var(--orange);width:44px;height:44px;display:grid;place-items:center;font-size:44px;line-height:1}.brand strong{display:block;font-size:24px;letter-spacing:3px}.brand small{display:block;font-size:10px;letter-spacing:.3px;color:var(--muted)}nav#navigation{display:flex;gap:26px;font-size:14px;align-items:center}nav#navigation a{padding-block:32px;position:relative;white-space:nowrap}nav#navigation 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/* Publisher v1.1: all published cards remain visible, including without JavaScript. */
.publisher-legal{padding-top:12px;padding-bottom:24px;font-size:12px;color:#c5d2d9}
.publisher-legal a{overflow-wrap:anywhere;text-decoration:underline;text-underline-offset:3px}
.empty-articles{display:none;margin-top:20px;font-size:14px}
.article-grid:empty+.empty-articles{display:block}
.article-grid>*{min-width:0;overflow-wrap:anywhere}
.article-content{min-width:0;overflow-wrap:anywhere}
.article-content img,.article-content video{height:auto!important}
.article-content iframe{height:revert!important;aspect-ratio:16/9}
.article-content table{display:block;max-width:100%;overflow-x:auto}
.article-content pre{max-width:100%;overflow-x:auto}
.hero h1{max-width:12em;overflow-wrap:anywhere}
.hero-description,.hero-desc{max-width:36em;overflow-wrap:anywhere}
.brand{min-width:0}.brand small{overflow-wrap:anywhere}
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.hero h1{text-wrap:balance;max-width:9em}
@media(max-width:700px){
  html:not(.has-js) .nav,html:not(.has-js) .header-inner{flex-wrap:wrap;padding-block:14px}
  html:not(.has-js) .nav nav,html:not(.has-js) nav#navigation{display:flex;flex-wrap:wrap;position:static;width:100%;padding:8px 0;gap:12px;box-shadow:none}
  html:not(.has-js) nav#navigation a{padding:4px 0}
  html:not(.has-js) .menu-toggle{display:none}
}

.hero h1{max-width:7em}
.article-layout>*{min-width:0}