*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,Helvetica,STHeiTi,sans-serif;color:var(--text);background:var(--page);line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
.topbar{font-size:12px;color:var(--muted);padding:8px 0}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.nav .logo img{height:32px;display:block}
.nav .links{display:flex;gap:26px;font-size:14px;flex-wrap:wrap}
.nav .links a:hover{color:var(--accent)}
.hero{padding:56px 0 64px}
.hero h1{font-size:44px;font-weight:700;letter-spacing:1px;line-height:1.25}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p{margin-top:12px;font-size:17px;opacity:.85}
.search{margin-top:28px;display:flex;max-width:620px;background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:0 10px 30px rgba(20,24,60,.12)}
.search input{flex:1;border:0;outline:0;padding:15px 18px;font-size:16px;color:#222;min-width:0;font-family:inherit}
.search button{border:0;background:var(--btn);color:#fff;padding:0 26px;font-size:15px;cursor:pointer;font-family:inherit}
.results{max-width:620px;background:#fff;border-radius:var(--r);margin-top:8px;box-shadow:0 10px 30px rgba(20,24,60,.12);display:none;color:#222}
.results a{display:block;padding:11px 18px;border-top:1px solid #f0f0f3;font-size:14px}
.results a:first-child{border-top:0}
.results a:hover{background:#f6f7fb;color:var(--accent)}
.results small{display:block;color:#888;font-size:12px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.section{padding:56px 0}
.section h2{font-size:26px;text-align:center;font-weight:600}
.section .sub{text-align:center;color:var(--muted);font-size:13px;margin-top:6px}
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;margin-top:34px}
.cat{background:#fff;border-radius:var(--r);padding:26px 24px;border:1px solid var(--line);transition:.2s;display:block}
.cat:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(20,24,60,.10);border-color:transparent}
.cat svg{width:34px;height:34px;stroke:var(--accent);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.cat h3{font-size:18px;margin-top:12px;font-weight:600}
.cat p{color:var(--muted);font-size:13px;margin-top:4px}
.cat .n{display:inline-block;margin-top:12px;font-size:12px;color:var(--accent)}
.hot{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:0 40px;margin-top:30px}
.hot a{display:flex;gap:10px;padding:13px 0;border-bottom:1px dashed var(--line);font-size:15px}
.hot a:hover{color:var(--accent)}
.hot a span{color:var(--accent);font-weight:600;min-width:22px}
.cta{background:var(--cta-bg);color:var(--cta-text);text-align:center;padding:46px 16px}
.cta h3{font-size:24px;font-weight:600}
.cta p{opacity:.8;margin-top:8px;font-size:14px}
.cta a{display:inline-block;margin-top:20px;background:var(--btn);color:#fff;padding:11px 30px;border-radius:var(--r);font-size:15px}
footer{background:var(--foot);color:rgba(255,255,255,.55);font-size:13px;padding:40px 0 30px}
footer .cols{display:flex;flex-wrap:wrap;gap:40px 70px}
footer h4{color:rgba(255,255,255,.85);font-size:14px;font-weight:500;margin-bottom:12px}
footer li{list-style:none;margin:6px 0}
footer a:hover{color:#fff}
footer .copy{border-top:1px solid rgba(255,255,255,.08);margin-top:30px;padding-top:18px;text-align:center;font-size:12px}
.crumb{font-size:13px;color:var(--muted);padding:20px 0 0}
.crumb a:hover{color:var(--accent)}
.layout{display:grid;grid-template-columns:240px 1fr;gap:28px;padding:20px 0 60px;align-items:start}
.side{background:#fff;border-radius:var(--r);border:1px solid var(--line);padding:10px 0;position:sticky;top:16px}
.side a{display:block;padding:10px 22px;font-size:14px;border-left:3px solid transparent}
.side a.on,.side a:hover{color:var(--accent);border-left-color:var(--accent);background:var(--soft)}
.main{background:#fff;border-radius:var(--r);border:1px solid var(--line);padding:34px 40px;min-width:0}
.main h1{font-size:26px;line-height:1.4;font-weight:600}
.meta{color:var(--muted);font-size:12px;margin:10px 0 24px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.meta a{color:var(--accent)}
.content{font-size:15px;color:#333;overflow-wrap:anywhere}
.content p{margin:0 0 12px}
.content h2,.content h3{margin:22px 0 10px;font-size:18px}
.content img{display:block;margin:12px 0;border-radius:6px;border:1px solid var(--line)}
.content a{color:var(--link);text-decoration:underline}
.content ol,.content ul{padding-left:22px;margin-bottom:12px}
.content table{border-collapse:collapse;margin:10px 0;display:block;overflow-x:auto}
.content td,.content th{border:1px solid var(--line);padding:6px 10px}
.list a{display:flex;justify-content:space-between;gap:16px;padding:15px 0;border-bottom:1px solid var(--line);font-size:15px}
.list a:hover{color:var(--accent)}
.list small{color:var(--muted);white-space:nowrap}
.pn{display:flex;justify-content:space-between;gap:16px;margin-top:34px;padding-top:18px;border-top:1px solid var(--line);font-size:14px}
.pn a{color:var(--accent)}
.help-box{margin-top:30px;background:var(--soft);border-radius:var(--r);padding:18px 22px;font-size:14px}
@media (max-width:820px){
 .hero{padding:36px 0 44px}.hero h1{font-size:32px}.hero p{font-size:15px}
 .nav{flex-direction:column;align-items:flex-start;gap:10px}.nav .links{gap:16px}
 .layout{grid-template-columns:1fr}.side{position:static;display:flex;overflow-x:auto;padding:0}
 .side a{white-space:nowrap;border-left:0;border-bottom:3px solid transparent}
 .side a.on{border-bottom-color:var(--accent)}
 .main{padding:22px 18px}.main h1{font-size:21px}
 .hot{grid-template-columns:1fr}.topbar .wrap span:last-child{display:none}
}

:root{--text:#2e3037;--muted:#8a8e9c;--page:#f8f8fa;--line:#ececf1;--accent:#d63253;--link:#c2185b;--btn:#111214;
--soft:#f4f2fb;--foot:#2e3037;--cta-bg:linear-gradient(120deg,#dbe2fb,#ece4fb);--cta-text:#2e3037;--r:4px}
.head{background:linear-gradient(115deg,#dbe2fb 0%,#e2e3fc 55%,#ede6fb 100%);position:relative;overflow:hidden}
.head:after{content:"";position:absolute;right:-120px;top:-60px;width:520px;height:520px;border-radius:50%;
 background:radial-gradient(circle,rgba(214,50,83,.16),rgba(150,90,230,.10) 45%,transparent 70%);pointer-events:none}
.head .wrap{position:relative;z-index:1}
.topbar{color:#6b6f7c}
.search button{border-radius:0}
.page-head{background:linear-gradient(115deg,#dbe2fb,#ede6fb)}
.page-head .hero{padding:28px 0 32px}.page-head .hero h1{font-size:30px}