:root{--bg:#F1F6FE;--surface:#fff;--soft:#F5F8FE;--blue:#4A9FF2;--blue2:#3F94EC;--text:#66769F;--muted:#8794B5;--line:#E4EAF5;--shadow:0 10px 28px rgba(65,115,180,.10);--radius:16px;--header:72px}*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;overflow-x:hidden;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input,textarea{font:inherit}.site-header{position:sticky;top:0;z-index:9999;height:var(--header);background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(228,234,245,.9)}.header-inner{max-width:1220px;height:100%;margin:auto;padding:0 20px;display:flex;align-items:center;gap:28px}.brand-logo,.drawer-logo{display:flex;align-items:center;flex:0 0 auto}.brand-logo 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@media(max-width:420px){.quick-grid,.info-strip,.footer-grid{grid-template-columns:1fr}.info-strip>div{border-right:0}.footer-brand{grid-column:auto}.footer-grid>div:last-child{grid-column:auto}.brand-logo img{width:104px}.header-cta{padding:0 12px}}
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