:root{--bg:#080a0d;--panel:#111419;--panel2:#171a1f;--line:#303640;--text:#f5f7fa;--muted:#9aa4b3;--green:#adff3f;--blue:#4d9bff;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}.site-header{height:76px;max-width:var(--max);margin:auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px;font-weight:700;letter-spacing:.04em}.brand-mark{width:30px;height:30px;display:grid;place-items:center;border:1px solid var(--green);color:var(--green);font:700 15px/1 ui-monospace,monospace;transform:rotate(-4deg)}nav{display:flex;gap:34px;color:var(--muted);font-size:14px}nav a:hover,nav a.active{color:var(--green)}.menu{display:none;background:none;border:1px solid var(--line);color:var(--text);padding:8px 12px}.hero{max-width:var(--max);margin:auto;padding:110px 24px 80px;position:relative;min-height:720px}.eyebrow{color:var(--muted);font:600 12px/1 ui-monospace,monospace;letter-spacing:.18em}.eyebrow span{display:inline-block;width:20px;height:2px;background:var(--green);vertical-align:middle;margin-right:10px}.hero h1{font-size:clamp(48px,7vw,92px);line-height:1.04;letter-spacing:-.055em;margin:28px 0 26px;max-width:900px}.hero h1 em{font-style:normal;color:var(--green)}.lead{font-size:18px;color:var(--muted);max-width:620px;margin:0 0 34px}.hero-actions{display:flex;gap:14px}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;font-weight:700;font-size:14px}.primary{background:var(--green);color:#080a0d}.primary:hover{box-shadow:0 0 32px #adff3f44}.secondary{border:1px solid var(--line)}.depth-stage{height:300px;margin-top:72px;border:1px solid var(--line);position:relative;overflow:hidden;background:linear-gradient(135deg,#0e1115,#171c22)}.stage-label{position:absolute;inset:18px 20px auto;display:flex;justify-content:space-between;color:#77818f;font:10px/1 ui-monospace,monospace;letter-spacing:.15em}.plane{position:absolute;border:1px solid #6f7a88;transform:skewY(-8deg) rotate(-4deg)}.p1{width:65%;height:48%;left:-7%;top:42%;background:#232831}.p2{width:50%;height:54%;right:5%;top:20%;background:#9098a2}.p3{width:28%;height:72%;right:-2%;top:34%;background:#dce1e5}.focus-ring{position:absolute;left:53%;top:50%;width:132px;height:132px;border:1px solid var(--green);border-radius:50%;transform:translate(-50%,-50%);display:grid;place-items:center;box-shadow:0 0 50px #adff3f19}.focus-ring:before{content:"";position:absolute;width:6px;height:6px;background:var(--green);border-radius:50%}.focus-ring span{margin-top:165px;color:var(--green);font:10px/1.4 ui-monospace,monospace;letter-spacing:.12em;text-align:center}.scale{position:absolute;left:20px;bottom:20px;display:flex;gap:5px}.scale i{display:block;width:26px;height:3px;background:#39414b}.scale i:nth-child(2){background:#66717d}.scale i:nth-child(3){background:#969fa8}.scale i:nth-child(4){background:#c3c9ce}.scale i:nth-child(5){background:#edf0f2}.stats{max-width:var(--max);margin:auto;padding:0 24px 90px;display:grid;grid-template-columns:repeat(4,1fr)}.stats div{padding:26px;border:1px solid var(--line);border-right:0}.stats div:last-child{border-right:1px solid var(--line)}.stats strong,.stats span{display:block}.stats strong{color:var(--green);font:700 14px/1 ui-monospace,monospace;letter-spacing:.1em}.stats span{color:var(--muted);font-size:13px;margin-top:10px}.section{max-width:var(--max);margin:auto;padding:110px 24px}.section-head{display:grid;grid-template-columns:1fr 2fr;align-items:start;margin-bottom:60px}.section-head span{color:var(--green);font:12px/1 ui-monospace,monospace;letter-spacing:.14em}.section-head h2{font-size:clamp(38px,5vw,64px);line-height:1.12;margin:0;letter-spacing:-.04em}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr)}.feature-grid article{min-height:250px;padding:28px;border:1px solid var(--line);border-right:0;background:var(--panel)}.feature-grid article:last-child{border-right:1px solid var(--line)}.feature-grid b{font:12px/1 ui-monospace,monospace;color:var(--green)}.feature-grid h3{font-size:22px;margin:80px 0 10px}.feature-grid p{color:var(--muted);font-size:14px;margin:0}.privacy-callout{max-width:calc(var(--max) - 48px);margin:0 auto 110px;background:var(--green);color:#0a0c0e;padding:46px;display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center}.lock-dot{width:12px;height:12px;border-radius:50%;background:#080a0d;box-shadow:0 0 0 7px #080a0d20}.privacy-callout small{font:700 11px/1 ui-monospace,monospace;letter-spacing:.16em}.privacy-callout h2{font-size:32px;line-height:1.2;margin:10px 0}.privacy-callout p{margin:0;max-width:700px}.privacy-callout a{font-weight:700;white-space:nowrap;border-bottom:1px solid}footer{max-width:var(--max);margin:auto;padding:42px 24px 60px;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr auto auto;gap:35px;align-items:center;color:var(--muted);font-size:12px}footer .brand{color:var(--text)}
@media(max-width:800px){.site-header{height:68px;position:relative}nav{display:none;position:absolute;top:67px;left:16px;right:16px;background:var(--panel2);padding:18px;z-index:20;flex-direction:column;gap:14px;border:1px solid var(--line)}nav.open{display:flex}.menu{display:block}.hero{padding-top:74px;min-height:auto}.hero h1{font-size:47px}.depth-stage{height:240px}.stats{grid-template-columns:1fr 1fr}.stats div:nth-child(2){border-right:1px solid var(--line)}.section{padding-top:80px}.section-head{grid-template-columns:1fr;gap:30px}.feature-grid{grid-template-columns:1fr 1fr}.feature-grid article:nth-child(2){border-right:1px solid var(--line)}.privacy-callout{margin:0 16px 80px;padding:32px 24px;grid-template-columns:1fr}.lock-dot{display:none}footer{grid-template-columns:1fr;gap:12px}}@media(max-width:520px){.hero{padding-left:18px;padding-right:18px}.hero h1{font-size:40px}.lead{font-size:16px}.hero-actions{align-items:stretch}.primary,.secondary{flex:1;padding:0 14px}.depth-stage{margin-top:52px}.stats{padding:0 18px 60px}.stats div{padding:18px}.section{padding:70px 18px}.feature-grid{grid-template-columns:1fr}.feature-grid article,.feature-grid article:nth-child(2){border-right:1px solid var(--line);min-height:190px}.feature-grid h3{margin-top:50px}.privacy-callout h2{font-size:27px}}