.site-header[data-aike-header]{--blue:#0789c5;--ink:#173448;--line:#dbe7ee;box-sizing:border-box;position:sticky;top:0;z-index:40;height:auto;margin:0;padding:0;background:#fffffff2;backdrop-filter:blur(18px);border:0;border-bottom:1px solid #dbe7ee;color:#173448;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:14px;font-weight:400;line-height:1.7;letter-spacing:normal;text-align:left}
.site-header[data-aike-header] *{box-sizing:border-box}
.site-header[data-aike-header] a{color:inherit;text-decoration:none}
.site-header[data-aike-header] button,.site-header[data-aike-header] input{font:inherit;color:inherit}
.site-header[data-aike-header] button{cursor:pointer}
.site-header[data-aike-header] a:focus-visible,.site-header[data-aike-header] button:focus-visible,.site-header[data-aike-header] input:focus-visible{outline:3px solid #70bedf;outline-offset:5px}
.site-header[data-aike-header] .wrap{width:min(1280px,calc(100% - 112px));max-width:none;margin:0 auto;padding:0}
.site-header[data-aike-header] .site-nav{height:88px;display:flex;align-items:center;gap:28px}
.site-header[data-aike-header] .site-brand{display:flex;align-items:center;gap:23px;flex-shrink:0}
.site-header[data-aike-header] .site-brand img{display:inline-block;width:135px;height:50px;max-width:100%;object-fit:contain;vertical-align:baseline}
.site-header[data-aike-header] .site-brand small{font-size:9px;line-height:1.9;color:#93a6b3;letter-spacing:1px}
.site-header[data-aike-header] .nav-links{display:flex;align-items:center;gap:26px;margin:0 0 0 auto;padding:0;position:static;font-size:12px;line-height:1.7}
.site-header[data-aike-header] .nav-links a{white-space:nowrap;transition:.2s}
.site-header[data-aike-header] .nav-links a:hover,.site-header[data-aike-header] .nav-links a.active{color:#0789c5}
.site-header[data-aike-header] .nav-ask{padding:11px 20px;background:#173448;color:#fff;border:0;border-radius:25px;display:inline-flex;align-items:center;justify-content:center;gap:25px;margin:0;font-size:11px;line-height:1.7;white-space:nowrap;transition:.2s}
.site-header[data-aike-header] .nav-ask:hover{background:#0789c5}
.site-header[data-aike-header] .nav-ask span{font:19px Arial}
.site-header[data-aike-header] .icon-button{background:none;border:0;width:30px;height:34px;margin:0;padding:6px;display:grid;place-items:center;flex-shrink:0}
.site-header[data-aike-header] .icon-button svg{display:block;width:20px;height:20px}
.site-header[data-aike-header] .nav-menu{display:none;font:22px Arial;padding:0}
.site-header[data-aike-header] .header-search{background:#f5fafc;border-top:1px solid #e5eff4;padding:19px 0}
.site-header[data-aike-header] [hidden]{display:none!important}
.site-header[data-aike-header] .header-search form{display:flex;align-items:center;gap:20px}
.site-header[data-aike-header] .header-search input[type=search]{border:0;border-bottom:1px solid #bad4e3;border-radius:0;flex:1;min-width:0;padding:9px 0;background:none;font-size:13px;line-height:1.7}
.site-header[data-aike-header] .header-search button{border:0;background:#0789c5;color:#fff;padding:10px 23px;border-radius:23px;font-size:12px;line-height:1.7;white-space:nowrap}
@media(max-width:1200px){.site-header[data-aike-header] .wrap{width:calc(100% - 80px)}.site-header[data-aike-header] .site-brand small{display:none}.site-header[data-aike-header] .site-nav{gap:23px}.site-header[data-aike-header] .nav-links{gap:23px}}
@media(max-width:950px){.site-header[data-aike-header] .wrap{width:calc(100% - 56px)}.site-header[data-aike-header] .site-nav{height:78px;gap:19px}.site-header[data-aike-header] .site-brand img{width:120px}.site-header[data-aike-header] .nav-links{gap:17px;font-size:11px}.site-header[data-aike-header] .nav-ask{font-size:10px;gap:16px;padding:11px 16px}.site-header[data-aike-header] .header-search-toggle{display:none}}
@media(max-width:800px){.site-header[data-aike-header] .nav-links{display:none;position:absolute;top:78px;left:0;right:0;margin:0;background:#fff;padding:24px 28px;border-bottom:1px solid #dbe7ee;box-shadow:0 12px 18px #153b5510;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px}.site-header[data-aike-header] .nav-links.open{display:grid}.site-header[data-aike-header] .nav-ask{margin-left:auto}.site-header[data-aike-header] .nav-menu{display:grid}.site-header[data-aike-header] .header-search-toggle{display:grid}}
@media(max-width:600px){.site-header[data-aike-header] .wrap{width:calc(100% - 40px)}.site-header[data-aike-header] .site-nav{height:72px;gap:13px}.site-header[data-aike-header] .site-brand img{width:110px;height:44px}.site-header[data-aike-header] .nav-links{top:72px;padding:24px 21px;font-size:11px;gap:20px}.site-header[data-aike-header] .nav-ask{padding:10px 14px;font-size:10px;gap:14px}.site-header[data-aike-header] .nav-ask span{font-size:16px}.site-header[data-aike-header] .icon-button{width:25px;height:32px;padding:3px}.site-header[data-aike-header] .icon-button svg{width:18px;height:18px}.site-header[data-aike-header] .nav-menu{font-size:21px}.site-header[data-aike-header] .header-search{padding:13px 0}.site-header[data-aike-header] .header-search form{gap:13px}.site-header[data-aike-header] .header-search input[type=search]{font-size:11px}.site-header[data-aike-header] .header-search button{padding:9px 17px;font-size:10px}}
@media(max-width:370px){.site-header[data-aike-header] .site-nav{gap:10px}.site-header[data-aike-header] .site-brand img{width:103px}.site-header[data-aike-header] .nav-ask{font-size:9px;padding:10px 12px;gap:10px}}
@media(prefers-reduced-motion:reduce){.site-header[data-aike-header] *{transition:none!important}}