#aike-site-header{--gi-blue:#1769d4;--gi-ink:#1b2f46;--gi-line:#e3ebf2;--gi-max:1280px;--gi-gutter:28px;position:relative;z-index:30;font:15px/1.75 "Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--gi-ink);background:#fff;color-scheme:light;text-align:left;isolation:isolate}
#aike-site-header *,#aike-site-header *:before,#aike-site-header *:after{box-sizing:border-box}
#aike-site-header a{color:inherit;text-decoration:none}
#aike-site-header button,#aike-site-header input{font:inherit}
#aike-site-header button{cursor:pointer}
#aike-site-header button,#aike-site-header input[type=search]{appearance:none}
#aike-site-header a:hover{color:var(--gi-blue)}
#aike-site-header a:focus-visible,#aike-site-header button:focus-visible,#aike-site-header summary:focus-visible,#aike-site-header input:focus-visible{outline:3px solid #8ebbf5;outline-offset:4px}
#aike-site-header .gi-container{width:min(var(--gi-max),calc(100% - var(--gi-gutter) - var(--gi-gutter)));margin-inline:auto}
#aike-site-header .gi-topbar{background:#f5f8fb;color:#586e82;font-size:12px}
#aike-site-header .gi-topbar>.gi-container{display:flex;align-items:center;justify-content:space-between;min-height:32px;gap:16px}
#aike-site-header .gi-topbar a{letter-spacing:.5px;color:#586e82}
#aike-site-header .gi-header{background:#fff;border-bottom:1px solid #edf2f7;position:relative;z-index:20}
#aike-site-header .gi-header-row{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:90px}
#aike-site-header .gi-brand{display:flex;flex-direction:column;flex-shrink:0}
#aike-site-header .gi-brand img{width:122px;height:45px;object-fit:contain}
#aike-site-header .gi-brand>span{font-size:12px;color:#586e82;letter-spacing:.5px;margin-top:2px}
#aike-site-header .gi-desktop-nav{display:flex;align-items:center;gap:30px;font-size:14px}
#aike-site-header .gi-desktop-nav>a{white-space:nowrap}
#aike-site-header details>summary{list-style:none;cursor:pointer}
#aike-site-header details>summary::-webkit-details-marker{display:none}
#aike-site-header .gi-products-menu{position:relative}
#aike-site-header .gi-products-menu>summary{padding:22px 0}
#aike-site-header .gi-products-menu>summary>span{color:#586e82;margin-left:6px}
#aike-site-header .gi-megamenu{position:absolute;top:100%;left:50%;transform:translateX(-36%);width:760px;max-width:calc(100vw - 64px);display:grid;grid-template-columns:1fr 1fr 1fr;background:#fff;border:1px solid #dfe8f0;box-shadow:0 18px 50px #244b7421;padding:25px;gap:24px;border-radius:10px}
#aike-site-header .gi-menu-heading{display:block;color:var(--gi-blue);font-size:15px;padding-bottom:13px;border-bottom:1px solid var(--gi-line);margin-bottom:12px}
#aike-site-header .gi-megamenu section>div{display:flex;flex-direction:column;gap:9px;font-size:14px;color:#586e82}
#aike-site-header .gi-header-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
#aike-site-header .gi-icon{display:grid;place-items:center;width:34px;height:36px;padding:6px;border:0;background:transparent;color:var(--gi-ink)}
#aike-site-header .gi-icon svg{width:19px;height:19px}
#aike-site-header .gi-button{display:inline-flex;align-items:center;justify-content:center;gap:30px;padding:13px 22px;background:var(--gi-blue);color:#fff;border:1px solid var(--gi-blue);border-radius:6px;font-size:13px;white-space:nowrap;line-height:1.5}
#aike-site-header .gi-button:hover{background:#125ebf;color:#fff}
#aike-site-header .gi-button-small{padding:10px 16px;gap:20px;font-size:13px}
#aike-site-header .gi-mobile-menu{display:none;position:relative}
#aike-site-header .gi-mobile-menu>summary{font-size:22px;padding:5px 7px}
#aike-site-header .gi-mobile-menu>nav{position:absolute;right:0;top:45px;background:#fff;box-shadow:0 16px 40px #193f6425;border:1px solid #dbe6f0;border-radius:10px;width:215px;padding:18px;display:flex;flex-direction:column;gap:15px;font-size:14px}
#aike-site-header .gi-search{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid #dce7f0;padding:7px;border-radius:6px;min-width:0}
#aike-site-header .gi-search input{border:0;background:transparent;min-width:0;flex:1;color:var(--gi-ink);font-size:14px;padding:8px 10px;outline-offset:1px}
#aike-site-header .gi-search input::placeholder{color:#586e82}
#aike-site-header .gi-search button{background:var(--gi-blue);color:#fff;border:0;border-radius:4px;font-size:12px;padding:10px 16px;white-space:nowrap}
#aike-site-header .sh-dialog{box-sizing:border-box;border:1px solid #dce7f1;background:#fff;color:var(--gi-ink);width:450px;max-width:calc(100% - 32px);border-radius:10px;padding:28px;box-shadow:0 20px 70px #234b7521}
#aike-site-header .sh-dialog::backdrop{background:#16395566}
#aike-site-header .sh-dialog-top{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:18px;color:#586e82;font-size:12px;letter-spacing:1px}
#aike-site-header .sh-dialog-top .gi-icon{font-size:27px;color:#586e82}
#aike-site-header .sh-dialog h2{font-size:23px;font-weight:400;line-height:1.6;margin:0 0 16px}
#aike-site-header .sh-dialog>p{font-size:14px;line-height:1.95;color:#586e82;margin:0}
#aike-site-header .sh-dialog dl{display:grid;grid-template-columns:auto 1fr;gap:14px 22px;font-size:14px;margin:25px 0}
#aike-site-header .sh-dialog dt{color:#586e82}
#aike-site-header .sh-dialog dd{margin:0}
#aike-site-header .sh-dialog a{color:var(--gi-blue)}
#aike-site-header .sh-dialog .gi-search{margin-bottom:18px}
#aike-site-header .sh-sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
@media(max-width:1050px){#aike-site-header{--gi-gutter:24px}#aike-site-header .gi-desktop-nav{gap:20px;font-size:14px}#aike-site-header .gi-header-actions{gap:9px}#aike-site-header .gi-brand img{width:111px;height:41px}#aike-site-header .gi-brand>span{font-size:12px}}
@media(max-width:800px){#aike-site-header .gi-desktop-nav{display:none}#aike-site-header .gi-mobile-menu{display:block}#aike-site-header .gi-header-row{min-height:80px}}
@media(max-width:600px){#aike-site-header{--gi-gutter:16px;font-size:14px}#aike-site-header .gi-topbar{font-size:12px}#aike-site-header .gi-topbar>.gi-container{min-height:27px;gap:8px}#aike-site-header .gi-topbar a{letter-spacing:0}#aike-site-header .gi-header-row{gap:10px;min-height:76px}#aike-site-header .gi-brand img{width:101px;height:37px}#aike-site-header .gi-brand>span{font-size:12px}#aike-site-header .gi-header-actions{gap:7px}#aike-site-header .gi-icon{width:28px}#aike-site-header .gi-header-actions>.gi-button{font-size:13px;padding:9px 10px;gap:9px}#aike-site-header .gi-mobile-menu>summary{font-size:21px;padding-inline:5px}#aike-site-header .gi-search input{font-size:16px;padding:8px 5px}#aike-site-header .gi-search button{font-size:12px;padding:10px 12px}#aike-site-header .sh-dialog{padding:22px}#aike-site-header .sh-dialog h2{font-size:21px}#aike-site-header .sh-dialog dl{font-size:13px;gap:12px 15px}}
@media(pointer:coarse){#aike-site-header .gi-search button,#aike-site-header .gi-button,#aike-site-header .gi-mobile-menu>summary,#aike-site-header .gi-icon{min-height:44px}#aike-site-header .gi-search input{font-size:16px}}


/* Shared header: readable navigation and compact layouts without tiny type. */
#aike-site-header .gi-desktop-nav{font-size:14px;font-weight:500}
#aike-site-header .gi-menu-heading{font-weight:400}
#aike-site-header .gi-brand>span{line-height:1.6;letter-spacing:0}
#aike-site-header .gi-search input::placeholder{color:#586e82;opacity:1}
#aike-site-header .sh-dialog dt{color:#586e82}
#aike-site-header .gi-topbar>.gi-container{flex-wrap:wrap;column-gap:12px;row-gap:2px;padding-block:5px}
#aike-site-header .gi-mobile-menu>nav{max-height:calc(100dvh - 150px);overflow-y:auto;overscroll-behavior:contain}
@media(max-width:960px){#aike-site-header .gi-desktop-nav{display:none}#aike-site-header .gi-mobile-menu{display:block}}
@media(max-width:600px){
#aike-site-header .gi-brand{width:116px}
#aike-site-header .gi-brand>span{font-size:12px}
#aike-site-header .gi-topbar{font-size:12px}
#aike-site-header .gi-topbar a{letter-spacing:0}
#aike-site-header .gi-header-actions>.gi-button{font-size:12px;padding-inline:8px;gap:8px}
#aike-site-header .gi-mobile-menu>nav{font-size:15px}
}


/* Dialog brand captions are decorative, independent of form labels. */
#aike-site-header .sh-dialog-top>span{font-size:10px;font-weight:400;color:#9aafc0;letter-spacing:1.2px;line-height:1.8}