
:root{--primary:rgb(176,219,245);--primary-dark:#2f7fa8;--deep:#0f2f45;--text:#1b2430;--muted:#667085;--line:#d9edf8;--soft:#f3fbff;--gray:#f6f7f9;--white:#fff;--shadow:0 14px 40px rgba(16,49,70,.08)}*{box-sizing:border-box}html,body{margin:0;padding:0;overflow-x:hidden}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.7}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(1180px,92vw);margin:0 auto}.site-header{background:#fff;border-bottom:1px solid #eef2f6;position:sticky;top:0;z-index:50}.mobile-header{height:62px;display:grid;grid-template-columns:84px 1fr 84px;align-items:center;padding:0 14px;background:#fff}.menu-btn{width:42px;height:42px;border:0;background:#fff;display:flex;flex-direction:column;gap:5px;justify-content:center;align-items:center;border-radius:14px}.menu-btn 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