:root{--vault-blue:#2f6bff;--vault-blue-strong:#1e40ff;--bg:#0b1220;--bg-dark:#0f172a;--panel:#111b2e;--panel-soft:#162235;--card:#1a2333;--text:#fff;--muted:#ffffffb3;--faint:#ffffff75;--line:#ffffff1a;--line-strong:#ffffff2e;--success:#22c55e;--danger:#ef4444;--news-bg:#fff;--news-soft:#f8fafc;--news-text:#0f172a;--news-muted:#64748b;--radius:12px;--shadow-blue:0 18px 50px #2f6bff57}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:radial-gradient(circle at 50% 0,#2f6bff2e,transparent 34rem),var(--bg);color:var(--text);margin:0;font-family:Inter,PingFang SC,Microsoft YaHei,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}.site-shell{min-height:100vh}.nav{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);z-index:20;background:#0b1220d1;justify-content:space-between;align-items:center;padding:16px min(5vw,64px);display:flex;position:sticky;top:0}.brand{letter-spacing:0;align-items:center;gap:10px;font-size:19px;font-weight:850;display:inline-flex}.brand-mark{background:linear-gradient(135deg,var(--vault-blue),var(--vault-blue-strong));box-shadow:var(--shadow-blue);border-radius:10px;justify-content:center;align-items:center;width:34px;height:34px;display:inline-flex}.nav-links{color:var(--muted);gap:28px;font-size:14px;display:flex}.nav-links a:hover{color:var(--text)}.nav-cta,.button{background:var(--vault-blue);border-radius:var(--radius);color:#fff;border:1px solid #0000;justify-content:center;align-items:center;min-height:44px;padding:0 18px;font-size:14px;font-weight:750;transition:background .16s,border-color .16s,transform .16s;display:inline-flex}.nav-cta:hover,.button:hover{background:var(--vault-blue-strong);transform:translateY(-1px)}.button.secondary{background:var(--panel-soft);border-color:var(--line)}.button.secondary:hover{background:#202d43}.hero-stage{grid-template-columns:minmax(320px,.86fr) minmax(520px,1.14fr);gap:52px;min-height:calc(100vh - 68px);padding:86px min(5vw,64px) 74px;display:grid;overflow:hidden}.hero-copy{align-self:center;max-width:690px}.hero-copy h1{color:#0000;letter-spacing:0;background:linear-gradient(#fff 0%,#cbd5e1 100%);-webkit-background-clip:text;background-clip:text;margin:0 0 24px;font-size:clamp(58px,9vw,112px);font-weight:900;line-height:.96}.hero-lede{color:var(--muted);max-width:640px;margin:0;font-size:clamp(18px,2vw,22px);line-height:1.75}.hero-actions{flex-wrap:wrap;gap:14px;margin-top:34px;display:flex}.trust-row{color:var(--faint);flex-wrap:wrap;gap:18px;margin-top:28px;font-size:13px;display:flex}.trust-row span{border-left:2px solid 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p{color:var(--faint);margin:4px 0 0;font-size:13px}.lock-dot{background:var(--success);border-radius:999px;width:10px;height:10px;margin-top:10px;box-shadow:0 0 14px #22c55ead}.chat-row{border:1px solid var(--line);background:#ffffff0a;border-radius:14px;align-items:center;gap:12px;margin-bottom:11px;padding:12px;display:flex}.avatar{background:linear-gradient(135deg,var(--vault-blue),var(--success));border-radius:15px;width:42px;height:42px}.chat-row h3,.chat-row p{margin:0}.chat-row h3{font-size:15px}.chat-row p{color:var(--faint);margin-top:4px;font-size:12px}.pin-lock{flex-direction:column;justify-content:center;align-items:center;height:100%;min-height:372px;display:flex}.lock-mark{color:var(--vault-blue);background:#2f6bff24;border:1px solid #2f6bff47;border-radius:999px;justify-content:center;align-items:center;width:58px;height:58px;margin-bottom:18px;font-size:24px;font-weight:850;display:inline-flex}.pin-lock strong{font-size:17px}.pin-dots{gap:9px;margin:20px 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