:root{--bg:#f6f8fb;--ink:#111827;--muted:#657087;--line:#e2e8f0;--panel:#fff;--accent:#1769ff;--accent2:#0d4fd1;--dark:#0a1020;--ok:#0a8f55}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif}.topbar{height:72px;max-width:1180px;margin:auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:750}.brand b{font-size:12px;color:var(--accent);background:#eaf1ff;padding:4px 7px;border-radius:999px}.brand-mark{width:34px;height:34px;display:grid;place-items:center;background:var(--dark);color:#fff;border-radius:10px;font-weight:900}.topbar nav{display:flex;gap:24px}.topbar nav a{color:#596579;text-decoration:none;font-size:14px}.topbar nav a:hover{color:var(--ink)}main{max-width:1180px;margin:auto;padding:0 24px}.hero{min-height:620px;display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:64px;padding:70px 0 90px}.eyebrow{font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}h1{font-size:58px;line-height:1.08;letter-spacing:-.045em;margin:16px 0 24px}h1 span{color:#657087}.lead{font-size:18px;line-height:1.8;color:var(--muted);max-width:700px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}.btn{min-height:48px;padding:0 20px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-weight:750;border:1px solid transparent;transition:.18s ease}.btn.primary{background:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent2);transform:translateY(-1px)}.btn.secondary{background:#fff;color:var(--ink);border-color:#d9e0ea}.btn.secondary:hover{border-color:#aeb9c8}.btn.disabled{background:#eef1f5;color:#9aa3b2;cursor:not-allowed}.install-note{font-size:13px;color:#7a8495;margin-top:14px}.vault-card{background:linear-gradient(145deg,#111827,#080c16);border-radius:26px;padding:22px;color:#fff;box-shadow:0 30px 70px rgba(15,23,42,.22);transform:rotate(1deg)}.vault-head{display:flex;justify-content:space-between;align-items:center;padding:4px 4px 18px;font-size:14px}.status-dot{font-size:12px;color:#7ee2af}.entry{display:grid;grid-template-columns:44px 1fr auto;gap:12px;align-items:center;padding:16px 10px;border-top:1px solid rgba(255,255,255,.09)}.entry>span:last-child{font-size:11px;color:#9da8bc}.site-dot{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;background:#1e293b;font-weight:800}.entry strong{display:block;font-size:14px}.entry small{display:block;margin-top:6px;color:#77839a;letter-spacing:.1em}.vault-footer{display:flex;gap:8px;padding-top:18px}.vault-footer span{font-size:10px;color:#9eabc0;border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:5px 8px}.section{padding:88px 0;border-top:1px solid var(--line)}.section-title span{font-size:13px;color:var(--accent);font-weight:800}.section-title h2{font-size:38px;letter-spacing:-.03em;margin:10px 0 36px}.grid{display:grid;gap:18px}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.two{grid-template-columns:repeat(2,1fr)}.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:28px}.card .num{font-size:12px;font-weight:850;color:var(--accent)}.card h3{font-size:20px;margin:24px 0 10px}.card p{color:var(--muted);line-height:1.75;margin:0}.security{background:#fff;margin:0 -24px;padding-left:24px;padding-right:24px;border-radius:28px}.security-flow{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:28px;background:#f8fafc;border-radius:18px;border:1px solid var(--line)}.security-flow div{text-align:center;min-width:120px}.security-flow b{display:block;font-size:14px}.security-flow small{display:block;color:var(--muted);font-size:11px;margin-top:5px}.security-flow i{font-style:normal;color:#b3bdca}.security-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.security-list span{padding:9px 12px;background:#eefbf5;color:#14714a;border-radius:999px;font-size:12px;font-weight:700}.muted{margin-top:12px!important;font-size:13px}.text-link{display:inline-block;margin-top:18px;color:var(--accent);font-weight:800;text-decoration:none}.cta{margin:30px 0 88px;background:var(--dark);color:#fff;border-radius:26px;padding:44px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:34px;margin:8px 0}.cta p{color:#aab4c7;margin:0}.btn.light{background:#fff;color:#101827;border-color:#fff}footer{max-width:1180px;margin:auto;padding:30px 24px 50px;display:flex;justify-content:space-between;color:#8993a4;font-size:12px}@media(max-width:900px){.topbar nav{display:none}.hero{grid-template-columns:1fr;padding:44px 0 70px;gap:42px}h1{font-size:44px}.grid.three,.grid.two{grid-template-columns:1fr}.security-flow{overflow-x:auto;justify-content:flex-start}.cta{align-items:flex-start;flex-direction:column}}@media(max-width:560px){main{padding:0 16px}.topbar{padding:0 16px}.hero{padding-top:24px}h1{font-size:38px}.lead{font-size:16px}.hero-actions .btn{width:100%}.vault-card{transform:none}.section-title h2{font-size:30px}.security{margin:0 -16px;padding-left:16px;padding-right:16px}.cta{padding:30px}.cta h2{font-size:28px}footer{padding-left:16px;padding-right:16px;flex-direction:column;gap:7px}}