main{min-height:calc(100vh - 140px)}:root{--bg: #0b0f1a;--card: #0f1629;--muted: #9aa4b2;--text: #e6ebff;--brand: #5b9dff;--brand-2: #7a5bff;--accent: #00e0ff;--radius: 18px}*{box-sizing:border-box}html,body,#app{height:100%}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--text);background:radial-gradient(1200px 600px at 80% -10%,rgba(0,224,255,.18),transparent 60%),radial-gradient(900px 500px at 10% 10%,rgba(91,157,255,.15),transparent 60%),linear-gradient(180deg,#0b0f1a,#0b0f1a)}a{color:inherit;text-decoration:none}.container{max-width:1200px;margin:0 auto;padding:0 20px}.grid{display:grid;gap:24px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:14px;border:1px solid rgba(255,255,255,.08);background:linear-gradient(135deg,#5b9dff33,#00e0ff26);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:var(--text);font-weight:600;transition:.2s transform,.2s box-shadow}.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px #00e0ff26}.btn.primary{background:linear-gradient(135deg,var(--brand),var(--accent));border-color:transparent}.card{background:linear-gradient(180deg,#ffffff08,#ffffff03);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:24px;box-shadow:inset 0 1px #ffffff0d}.nav{position:sticky;top:0;z-index:50;background:#0b0f1a99;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.06)}.nav .bar{display:flex;align-items:center;height:64px}.brand{display:flex;align-items:center;gap:10px;font-weight:700}.brand svg{width:28px;height:28px}.navlinks{display:flex;gap:18px;margin-left:auto}.navlinks a{padding:10px 12px;border-radius:10px}.navlinks a.active,.navlinks a:hover{background:#ffffff0f}.menu-btn{display:none;margin-left:auto;background:none;border:1px solid rgba(255,255,255,.15);border-radius:12px;padding:8px 10px;color:var(--text)}.hero{position:relative;overflow:hidden;padding:80px 0 40px}.hero h1{font-size:clamp(28px,6vw,56px);line-height:1.05;margin:0 0 16px}.hero p{max-width:720px;color:var(--muted);font-size:clamp(14px,2.4vw,18px)}.hero .cta{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap}.section{padding:56px 0}.section h2{font-size:clamp(22px,4.5vw,34px);margin:0 0 12px}.section .muted{color:var(--muted);max-width:800px}.features{grid-template-columns:repeat(3,1fr)}@media (max-width: 960px){.features{grid-template-columns:1fr 1fr}.navlinks{display:none}.menu-btn{display:inline-flex}}@media (max-width: 640px){.features{grid-template-columns:1fr}}.footer{border-top:1px solid rgba(255,255,255,.06);padding:28px 0;color:var(--muted)}.sheet{position:fixed;inset:0 0 auto auto;top:68px;right:12px;width:min(92vw,320px);background:#0f1629fa;border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:12px;display:none;flex-direction:column;gap:6px}.sheet.open{display:flex}.sheet a{padding:12px;border-radius:10px}.sheet a:hover{background:#ffffff0f}.bg-grid{position:absolute;top:-20%;right:-10%;bottom:-10%;left:-10%;pointer-events:none;opacity:.25;background-image:linear-gradient(transparent 23px,#ffffff0f 24px),linear-gradient(90deg,transparent 23px,rgba(255,255,255,.06) 24px);background-size:24px 24px;-webkit-mask-image:radial-gradient(1200px 600px at 80% -10%,black,transparent 70%);mask-image:radial-gradient(1200px 600px at 80% -10%,black,transparent 70%)}.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}@media (max-width: 1024px){.cards-3{grid-template-columns:1fr 1fr}}@media (max-width: 640px){.cards-3{grid-template-columns:1fr}}.card h3{margin:0 0 6px;font-size:clamp(16px,2.4vw,20px)}.card p{margin:8px 0 0}.card,.card *{word-break:break-word}@media (max-width: 640px){.card .btn{width:100%}}