:root{--b:#1677ff;--c:#00c2ff;--g:#15c78a;--i:#132238;--m:#667085;--l:#e5edf7;--s:#f6f9fd;--d:#071a3b;--sh:0 22px 60px rgba(24,82,160,.14)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--i);background:#fff;font-family:Inter,"Microsoft YaHei",system-ui,sans-serif}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}.container{width:min(1180px,calc(100% - 40px));margin:auto}.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--l)}.nav{height:70px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:850}.logo{display:grid;place-items:center;width:36px;height:36px;border-radius:12px;color:#fff;background:linear-gradient(135deg,var(--b),var(--c))}.links{display:flex;gap:26px;margin-left:auto;color:#536174}.links .active,.links a:hover{color:var(--b)}.menu{display:none;border:0;background:transparent;font-size:25px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border:1px solid transparent;border-radius:13px;font-weight:780;transition:.2s}.btn:hover{transform:translateY(-2px)}.primary{color:#fff;background:linear-gradient(135deg,var(--b),var(--c));box-shadow:0 12px 28px rgba(22,119,255,.24)}.outline{background:#fff;border-color:#cbd8ea;color:#263548}.white{background:#fff;color:var(--b)}
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