:root{--bg:#F5FBFF;--white:#fff;--soft:#EAF7FC;--soft2:#DFF5FB;--cyan:#25C8D1;--sky:#25B6E8;--blue:#1787DB;--navy:#174B78;--deep:#173B60;--ink:#2D4359;--muted:#687F93;--line:#DCEBF3;--foot:#123653;--shadow:0 15px 45px rgba(23,75,120,.075)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--bg);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);line-height:1.8;font-size:16px}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}button{font:inherit;cursor:pointer}img{max-width:100%}.shell{width:min(1160px,calc(100% - 48px));margin:0 auto}.skip-link{position:absolute;top:-80px;left:12px;background:#fff;padding:8px 16px;z-index:100}.skip-link:focus{top:5px}.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.nav-wrap{height:72px;display:flex;align-items:center;gap:26px;justify-content:space-between}.brand{display:inline-flex;align-items:center;flex:none}.brand 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@media(max-width:1080px){.desktop-nav{gap:11px}.desktop-nav a{font-size:13px}.nav-wrap{gap:16px}.brand-fallback{font-size:17px}}
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@media(max-width:380px){.brand-fallback{gap:5px;font-size:13px}.brand-fallback small{font-size:7px}.brand-icon{width:28px;height:28px}.nav-cta{min-width:0;padding:0 10px;font-size:12px}.nav-wrap{gap:3px}}
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