:root{font-family:"Segoe UI","Microsoft YaHei",sans-serif;color:#172b3e;background:#f5f6f8}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}header{max-width:1160px;margin:auto;padding:32px 40px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #dce2e7}.brand{font-size:19px;font-weight:700}.brand span{font-size:12px;font-weight:400;color:#67798b;margin-left:14px}.admin{font-size:13px;color:#536777}main{max-width:1160px;margin:auto;padding:72px 40px 32px}.eyebrow{letter-spacing:3px;font-size:12px;font-weight:700;color:#2457c5}h1{font-size:clamp(35px,4.8vw,61px);line-height:1.3;letter-spacing:-2px;margin:24px 0}.intro{max-width:650px;font-size:17px;color:#536777;line-height:1.9}.download{display:inline-flex;gap:44px;align-items:center;background:#2457c5;color:white;padding:18px 24px;border-radius:6px;font-weight:600;margin-top:18px}.download:hover{background:#1c47a4}.hint{font-size:12px;color:#67798b;margin-top:15px}section{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;border-top:1px solid #dce2e7;margin-top:62px;padding-top:32px}article b{color:#2457c5;font-size:14px}h2{font-size:19px;margin:15px 0 10px}article p{font-size:14px;line-height:1.9;color:#536777}footer{font-size:12px;color:#67798b;border-top:1px solid #dce2e7;margin-top:34px;padding-top:22px;line-height:1.8}@media(max-width:650px){header{padding:22px}.brand span{display:none}main{padding:45px 22px 26px}section{grid-template-columns:1fr;gap:18px;margin-top:40px}.intro{font-size:16px}}