:root{--bg:#F4F5F7;--panel:#fff;--soft:#EEF1F5;--line:#DDE2EA;--red:#D60000;--red2:#A90000;--text:#1D222B;--muted:#5B6472;--hint:#87909E;--shadow:0 16px 38px rgba(24,32,46,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;padding-top:118px}body.drawer-open{overflow:hidden}a{text-decoration:none;color:inherit}.container{width:min(1180px,calc(100% - 32px));margin:auto}.site-header{position:fixed;inset:0 0 auto;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(20,28,40,.08)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}.logo{display:flex;align-items:center;flex:0 0 auto}.logo 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