:root{--primary:rgb(176,219,245);--blue:#0f3b63;--blue2:#155b8a;--light:#f3f9fd;--line:#d8edf8;--text:#10243a;--muted:#657589;--white:#fff;--gray:#f5f7fa;--shadow:0 14px 35px rgba(15,59,99,.08);--radius:20px}*{box-sizing:border-box}html,body{margin:0;padding:0;overflow-x:hidden}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.75}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(1200px,calc(100% - 32px));margin:0 auto}.site-header{background:#fff;border-bottom:1px solid #edf3f8;position:sticky;top:0;z-index:50}.mobile-header{height:62px;display:grid;grid-template-columns:56px 1fr auto;align-items:center;padding:0 14px;background:#fff}.menu-button{width:42px;height:42px;border:0;background:#fff;display:flex;flex-direction:column;gap:5px;justify-content:center;align-items:center}.menu-button 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