:root{font-family:Inter,Arial,"Microsoft YaHei",sans-serif;color:#e9fbff;background:#06111c}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;min-width:320px;background:radial-gradient(ellipse at 70% 20%,#0a3457 0,#071522 38%,#050d16 76%);color:#e9fbff}
a{color:inherit;text-decoration:none}
.site-shell{max-width:1480px;min-height:100vh;margin:auto;padding:0 clamp(20px,4vw,64px);display:flex;flex-direction:column}
.site-header{height:90px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid #7bdfff27}
.brand{display:inline-flex;align-items:center;gap:12px;font-size:clamp(17px,1.8vw,23px);font-weight:1000;letter-spacing:-.04em;white-space:nowrap}
.brand img{border-radius:50%;box-shadow:0 0 18px #19d8ff75}
.header-link{font-size:14px;font-weight:800;color:#aaf8ff;white-space:nowrap}
.header-link:hover{text-decoration:underline}
.hero{padding:clamp(40px,6vw,86px) 0 clamp(38px,5vw,68px);display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);align-items:center;gap:clamp(30px,4vw,68px)}
.eyebrow{display:flex;align-items:center;gap:9px;margin-bottom:24px;color:#62e5ef;font-size:12px;font-weight:900;letter-spacing:.18em}
.live-dot{width:8px;height:8px;border-radius:50%;background:#3affca;box-shadow:0 0 14px #3affca}
h1{margin:0;font-size:clamp(44px,5.2vw,78px);line-height:1.08;font-weight:1000;letter-spacing:-.06em;white-space:nowrap}
h1 em{font-style:normal;color:#4af4de;text-shadow:0 0 28px #13d2e566}
.hero-copy>p{max-width:510px;margin:30px 0 0;color:#bdd2da;font-size:clamp(15px,1.35vw,18px);line-height:1.8}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:18px 22px;margin-top:36px}
.play-button{display:inline-flex;align-items:center;justify-content:center;gap:27px;min-height:55px;padding:0 25px;border-radius:12px;background:#4cf4da;color:#071923;font-size:16px;font-weight:1000;box-shadow:0 10px 35px #24dac745;transition:transform .16s,box-shadow .16s}
.play-button:hover{transform:translateY(-2px);box-shadow:0 15px 40px #24dac765}
.play-button:focus-visible,.header-link:focus-visible,.brand:focus-visible{outline:2px solid #fff;outline-offset:4px}
.demo-note{color:#9ab6c3;font-size:12px}
.hero-art{overflow:hidden;border:1px solid #55ebff55;border-radius:22px;background:#09233b;box-shadow:0 28px 80px #0009,0 0 60px #0dbbe320}
.hero-art img{display:block;width:100%;height:auto}
.details{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding-bottom:56px}
.details>div{min-height:128px;padding:23px;border:1px solid #56ecf929;border-radius:16px;background:#0e2430a8}
.details strong{display:block;margin-bottom:12px;color:#54e7ea;font-size:12px;letter-spacing:.14em}
.details span{font-size:18px;font-weight:900}
.details p{margin:7px 0 0;color:#96b7c1;font-size:13px;line-height:1.6}
footer{margin-top:auto;padding:24px 0 30px;border-top:1px solid #7bdfff20;color:#86a6b1;font-size:12px}
@media(max-width:900px){.hero{grid-template-columns:1fr;gap:30px}.hero-art{order:-1}h1{white-space:normal}.details{gap:10px}}
@media(max-width:600px){.site-header{height:75px}.brand img{width:38px;height:38px}.header-link{font-size:12px}.hero{padding:29px 0 36px}.hero-art{border-radius:15px}.eyebrow{font-size:10px;margin-bottom:18px}h1{font-size:clamp(39px,11vw,59px)}.hero-copy>p{margin-top:20px}.hero-actions{margin-top:26px}.details{grid-template-columns:1fr;padding-bottom:34px}.details>div{min-height:auto;padding:18px}}