:root{--blue:#126fd1;--ink:#152c43;--muted:#5e7387;--line:#dce8f1;--bg:#f6faff;--gold:#c97916}*{box-sizing:border-box}body{margin:0;background:var(--bg);font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink)}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1040px;margin:auto;padding:0 22px}header{background:#fff;border-bottom:1px solid var(--line)}.bar{min-height:72px;display:flex;align-items:center;gap:13px}.logo{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:#dceeff;color:var(--blue);font-size:25px;font-weight:800}.brand{font-weight:800;font-size:19px}.sub{color:var(--muted);font-size:12px}nav{margin-left:auto;display:flex;gap:16px;font-size:14px}main{padding-bottom:44px}.hero{padding:58px 0 35px;max-width:810px}.eyebrow{color:var(--blue);font-weight:700;font-size:14px}.hero h1{font-size:38px;line-height:1.25;letter-spacing:-1px;margin:10px 0 16px}.hero p{color:#456077;font-size:17px}.notice{border:1px solid #f0d8ad;background:#fffaf0;color:#725019;border-radius:12px;padding:13px 16px;font-size:14px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 8px 22px rgba(30,80,120,.05)}.card h2{margin:0 0 8px;font-size:21px}.card p{margin:0 0 12px;color:var(--muted)}section{padding:28px 0}h2{font-size:25px;margin:0 0 9px}h3{font-size:18px;margin:22px 0 5px}.meta{color:var(--muted);font-size:13px}.steps{padding-left:22px}.cta{display:inline-block;background:var(--blue);color:#fff;padding:10px 17px;border-radius:10px;font-weight:700}.cta:hover{text-decoration:none;filter:brightness(1.06)}footer{background:#fff;border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font-size:13px}@media(max-width:720px){nav{display:none}.hero{padding-top:38px}.hero h1{font-size:29px}.grid{grid-template-columns:1fr}}