:root{--bg:#121212;--bg2:#0b0b0f;--primary:#0052cc;--accent1:#00C6FF;--accent2:#0072FF;--text:#e6e6e6;--muted:#9aa0a6;--card:#1a1a1f;--border:#2a2a32}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:radial-gradient(1200px 800px at 20% 10%,#0a0f1f 0%,var(--bg) 40%,var(--bg2) 100%);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Montserrat","Roboto",system-ui,Arial,sans-serif;-webkit-font-smoothing:antialiased}
#bg{position:fixed;inset:0;z-index:-1}
#particles,#frp-flow{position:absolute;inset:0}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.site-header{position:fixed;top:0;left:0;right:0;background:linear-gradient(180deg,rgba(18,18,18,.9),rgba(18,18,18,.6));backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid rgba(255,255,255,.06);z-index:100}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:48px;height:24px}
.brand-name{font-weight:700;letter-spacing:.08em}
.links{display:flex;gap:20px}
.links a{color:var(--muted);text-decoration:none;font-size:14px}
.links a:hover{color:var(--text)}
.actions{display:flex;gap:12px}
.btn{appearance:none;border:none;border-radius:8px;padding:10px 20px;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(0.4, 0, 0.2, 1);letter-spacing:.02em;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-family:inherit}
.btn.primary{background:linear-gradient(135deg, #00C6FF 0%, #0072FF 100%);color:#fff;box-shadow:0 4px 12px rgba(0,114,255,.25), inset 0 1px 0 rgba(255,255,255,0.2);position:relative;overflow:hidden}
.btn.primary::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);transition:0.5s}
.btn.primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,114,255,.4), inset 0 1px 0 rgba(255,255,255,0.3)}
.btn.primary:hover::before{left:100%}
.btn.primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(0,114,255,.2)}
.btn.ghost{background:rgba(255,255,255,0.03);color:var(--text);border:1px solid rgba(255,255,255,0.1);backdrop-filter:blur(4px)}
.btn.ghost:hover{border-color:var(--accent1);color:#fff;background:rgba(255,255,255,0.08);box-shadow:0 0 12px rgba(0,198,255,0.15)}
.btn.huge{padding:16px 32px;font-size:18px;border-radius:12px;font-weight:700;letter-spacing:0.04em}
.hero{padding:140px 0 80px;position:relative}
.hero-content{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero h1{display:flex;flex-direction:column;gap:8px;font-size:48px;line-height:1.1;margin:0}
.hero .accent{background:linear-gradient(90deg,var(--accent1),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.subtitle{margin-top:14px;color:var(--muted);font-size:16px}
.metrics{display:flex;gap:24px;margin-top:18px}
.metric{display:flex;flex-direction:column;gap:6px;padding:10px 14px;background:linear-gradient(180deg,rgba(58,65,86,.35),rgba(26,26,31,.35));border:1px solid rgba(255,255,255,.06);border-radius:12px}
.metric .label{font-size:12px;color:var(--muted)}
.metric .value{font-size:20px;font-weight:700}
.cta{margin-top:26px}
.cta .note{margin-top:10px;color:var(--muted);font-size:12px}
.visual{position:relative;display:flex;justify-content:center;perspective:1000px}
.dashboard-preview{width:100%;height:auto;border-radius:12px;box-shadow:0 20px 50px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.1);transform:rotateY(-5deg) rotateX(2deg);transition:transform 0.5s ease}
.dashboard-preview:hover{transform:rotateY(0) rotateX(0) scale(1.02);box-shadow:0 30px 60px rgba(0,114,255,0.2), 0 0 0 1px rgba(0,198,255,0.3)}
.section{padding:80px 0}
.section h2{margin:0 0 24px;font-size:28px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:linear-gradient(180deg,rgba(58,65,86,.26),rgba(26,26,31,.26));border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:22px;transition:.25s ease;position:relative}
.card:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(0,114,255,.18)}
.card .icon{font-size:24px}
.card .title{margin-top:10px;font-weight:700}
.card .desc{margin-top:8px;color:var(--muted);font-size:14px}
.card .tag{position:absolute;top:16px;right:16px;font-size:12px;color:#fff;background:linear-gradient(90deg,var(--accent1),var(--accent2));padding:4px 10px;border-radius:999px}
.section.alt{background:radial-gradient(1200px 800px at 80% 20%,#0b1120 0%,transparent 50%)}
.usecases{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.usecase{background:linear-gradient(180deg,rgba(58,65,86,.26),rgba(26,26,31,.26));border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:22px;transition:.25s ease}
.usecase:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(0,198,255,.18)}
.u-title{font-weight:700}
.u-desc{margin-top:8px;color:var(--muted)}
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.plan{background:linear-gradient(180deg,rgba(58,65,86,.26),rgba(26,26,31,.26));border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:24px;position:relative}
.plan.popular{border-color:rgba(0,114,255,.5);box-shadow:0 0 28px rgba(0,114,255,.18)}
.popular-badge{position:absolute;top:-10px;right:16px;background:linear-gradient(90deg,var(--accent1),var(--accent2));color:#fff;font-size:12px;padding:6px 10px;border-radius:999px}
.p-name{font-size:20px;font-weight:700}
.p-feat{margin-top:10px;color:var(--muted)}
.cta-footer{padding:60px 0;background:linear-gradient(180deg,rgba(0,114,255,.08),rgba(0,198,255,.06))}
.cta-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px}
.cta-text{font-size:22px;font-weight:700}
.stack{margin-top:18px;display:flex;gap:12px;flex-wrap:wrap}
.stack span{font-size:12px;color:#fff;background:linear-gradient(90deg,var(--accent1),var(--accent2));padding:6px 10px;border-radius:999px}
.site-footer{border-top:1px solid rgba(255,255,255,.06);padding:30px 0}
.foot{display:flex;align-items:center;justify-content:space-between}
.foot .links,.foot .social{display:flex;gap:16px}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:#fff}
@media (max-width:1024px){.hero-content{grid-template-columns:1fr}.visual{height:220px}.cards{grid-template-columns:repeat(2,1fr)}.usecases{grid-template-columns:repeat(2,1fr)}.pricing{grid-template-columns:repeat(2,1fr)}.cta-wrap{flex-direction:column;align-items:flex-start}}
@media (max-width:640px){.nav{height:56px}.links{display:none}.hero{padding:72px 0 56px}.hero h1{font-size:32px}.metrics{gap:12px}.cards,.usecases,.pricing{grid-template-columns:1fr}.btn.huge{width:100%}.foot{flex-direction:column;gap:12px}}