:root{
  --bg:#05060f;
  --bg-2:#090b1c;
  --ink:#e8ecff;
  --muted:#8b93c4;
  --cyan:#35c8ff;
  --magenta:#ff3df0;
  --gold:#ffc233;
  --red:#ff4a63;
  --green:#3ff0a0;
  --line:rgba(120,140,255,.14);
  --card:rgba(255,255,255,.035);
  --maxw:1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font:16px/1.65 "Inter","Helvetica Neue",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0}

#grid{position:fixed;inset:0;width:100%;height:100%;z-index:0;opacity:.85}
.scanlines{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(53,200,255,.14), transparent 60%),
    radial-gradient(90% 60% at 100% 100%, rgba(255,61,240,.10), transparent 60%),
    repeating-linear-gradient(to bottom, rgba(255,255,255,.022) 0 1px, transparent 1px 3px);
  mix-blend-mode:screen;
}
main,.nav,.foot{position:relative;z-index:2}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;
  display:flex;align-items:center;gap:24px;
  padding:14px max(20px,calc(50vw - var(--maxw)/2));
  backdrop-filter:blur(14px);
  background:linear-gradient(to bottom, rgba(5,6,15,.92), rgba(5,6,15,.55));
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.16em;font-size:13px}
.brand img{border-radius:9px;box-shadow:0 0 20px rgba(255,61,240,.45)}
.nav-links{display:flex;gap:26px;margin-left:auto;font-size:14px;color:var(--muted)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--cyan)}
.nav-actions{display:flex;align-items:center;gap:12px}
.lang{
  background:transparent;border:1px solid var(--line);color:var(--muted);
  border-radius:999px;padding:6px 12px;font:600 12px/1 inherit;letter-spacing:.08em;cursor:pointer;
  transition:.2s;
}
.lang:hover{color:var(--cyan);border-color:rgba(53,200,255,.5)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:12px;border-radius:14px;font-weight:600;transition:transform .18s, box-shadow .18s, background .18s}
.btn-sm{padding:8px 16px;font-size:14px;background:linear-gradient(135deg,var(--cyan),#6a7bff);color:#04101c;box-shadow:0 6px 22px rgba(53,200,255,.32)}
.btn-sm:hover{transform:translateY(-2px)}
.btn-play{
  padding:14px 24px;color:#03101d;
  background:linear-gradient(135deg,#7bf0ff,var(--cyan) 45%,#7a6bff);
  box-shadow:0 10px 40px rgba(53,200,255,.35), inset 0 1px 0 rgba(255,255,255,.5);
}
.btn-play:hover{transform:translateY(-3px);box-shadow:0 16px 50px rgba(53,200,255,.5)}
.btn-play span{display:flex;flex-direction:column;line-height:1.2;text-align:left}
.btn-play small{font-size:11px;opacity:.75;letter-spacing:.06em}
.btn-play strong{font-size:16px}
.btn-ghost{padding:14px 22px;border:1px solid var(--line);color:var(--muted)}
.btn-ghost:hover{color:var(--ink);border-color:rgba(53,200,255,.45);transform:translateY(-3px)}

/* ---------- hero ---------- */
.hero{
  max-width:var(--maxw);margin:0 auto;
  padding:72px max(20px,calc(50vw - var(--maxw)/2)) 40px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.eyebrow{display:inline-flex;align-items:center;gap:9px;margin:0 0 22px;
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green);animation:blip 1.8s infinite}
@keyframes blip{0%,100%{opacity:1}50%{opacity:.25}}
h1{font-size:clamp(40px,6.4vw,74px);font-weight:800}
h1 em{
  font-style:normal;display:block;
  background:linear-gradient(100deg,var(--cyan),var(--magenta) 60%,var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 26px rgba(255,61,240,.35));
}
.lede{color:var(--muted);font-size:17px;max-width:52ch;margin:22px 0 32px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px}
.hero-meta{display:flex;flex-wrap:wrap;gap:32px;list-style:none;padding:0;margin:44px 0 0}
.hero-meta li{display:flex;flex-direction:column}
.hero-meta b{font-size:15px}
.hero-meta span{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:3px}

.hero-art{display:flex;justify-content:center}
.phone{position:relative;width:min(300px,72vw);animation:float 7s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.phone-screen{
  position:relative;z-index:2;border-radius:34px;overflow:hidden;
  border:1px solid rgba(140,170,255,.28);
  box-shadow:0 40px 90px rgba(0,0,0,.7), 0 0 0 9px #0a0c18, 0 0 60px rgba(53,200,255,.22);
}
.phone-glow{
  position:absolute;inset:-16% -22%;z-index:1;border-radius:50%;
  background:radial-gradient(circle at 50% 45%, rgba(53,200,255,.4), rgba(255,61,240,.22) 45%, transparent 70%);
  filter:blur(42px);
}

/* ---------- sections ---------- */
.section{max-width:var(--maxw);margin:0 auto;padding:84px max(20px,calc(50vw - var(--maxw)/2))}
.section-title{font-size:clamp(26px,3.6vw,40px);font-weight:800}
.section-title span{border-bottom:2px solid rgba(53,200,255,.45);padding-bottom:6px}
.section-sub{color:var(--muted);margin:20px 0 40px;max-width:56ch}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  padding:28px;border-radius:20px;border:1px solid var(--line);background:var(--card);
  transition:transform .25s, border-color .25s, background .25s;
}
.card:hover{transform:translateY(-6px);background:rgba(255,255,255,.06)}
.card h3{font-size:19px;margin:18px 0 10px}
.card p{color:var(--muted);font-size:15px;margin:0}
.card-icon{width:52px;height:52px;border-radius:15px;display:grid;place-items:center;background:rgba(255,255,255,.05)}
.card-red:hover{border-color:rgba(255,74,99,.5)}
.card-green:hover{border-color:rgba(63,240,160,.5)}
.card-gold:hover{border-color:rgba(255,194,51,.5)}
.chip-red{width:26px;height:20px;border-radius:6px;background:linear-gradient(180deg,#ff6b7e,#c81f3c);box-shadow:0 0 18px rgba(255,74,99,.7)}
.chip-gate{width:26px;height:22px;border:3px solid var(--green);border-radius:5px;border-left-color:transparent;border-right-color:transparent;box-shadow:0 0 18px rgba(63,240,160,.5)}
.chip-shard{width:20px;height:20px;border-radius:50%;background:radial-gradient(circle at 40% 35%,#fff2c4,var(--gold));box-shadow:0 0 20px rgba(255,194,51,.8)}

.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.pu{padding:22px;border-radius:18px;border:1px solid var(--line);background:var(--card);transition:transform .25s,border-color .25s}
.pu:hover{transform:translateY(-5px)}
.pu h3{display:flex;align-items:center;gap:10px;font-size:16px;margin-bottom:10px}
.pu p{color:var(--muted);font-size:14px;margin:0}
.pu-badge{width:14px;height:14px;border-radius:50%;flex:none}
.pu-shield .pu-badge{background:var(--cyan);box-shadow:0 0 16px var(--cyan)}
.pu-shield:hover{border-color:rgba(53,200,255,.5)}
.pu-magnet .pu-badge{background:var(--magenta);box-shadow:0 0 16px var(--magenta)}
.pu-magnet:hover{border-color:rgba(255,61,240,.5)}
.pu-slow .pu-badge{background:#9d7bff;box-shadow:0 0 16px #9d7bff}
.pu-slow:hover{border-color:rgba(157,123,255,.5)}
.pu-x2 .pu-badge{background:var(--gold);box-shadow:0 0 16px var(--gold)}
.pu-x2:hover{border-color:rgba(255,194,51,.5)}

/* pulse blast */
.blast{
  margin-top:28px;padding:40px;border-radius:24px;
  border:1px solid rgba(53,200,255,.22);
  background:linear-gradient(120deg, rgba(53,200,255,.09), rgba(255,61,240,.06) 60%, transparent);
  display:grid;grid-template-columns:200px 1fr;gap:40px;align-items:center;
}
.blast-ring{position:relative;height:180px}
.blast-ring span{
  position:absolute;left:50%;top:50%;width:44px;height:44px;margin:-22px 0 0 -22px;
  border-radius:50%;border:2px solid var(--cyan);
  animation:ring 2.6s cubic-bezier(.2,.6,.3,1) infinite;
}
.blast-ring span:nth-child(2){animation-delay:.85s}
.blast-ring span:nth-child(3){animation-delay:1.7s}
.blast-ring::after{
  content:"";position:absolute;left:50%;top:50%;width:40px;height:40px;margin:-20px 0 0 -20px;
  border-radius:50%;background:radial-gradient(circle at 40% 35%,#fff,var(--cyan));
  box-shadow:0 0 40px rgba(53,200,255,.9);
}
@keyframes ring{0%{transform:scale(1);opacity:.9}100%{transform:scale(3.6);opacity:0}}
.blast-copy h3{font-size:clamp(20px,2.6vw,28px);margin-bottom:14px}
.blast-copy p:last-child{color:var(--muted);margin:0;max-width:60ch}

/* screenshots */
.shots{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.shots figure{margin:0;border-radius:18px;overflow:hidden;border:1px solid var(--line);
  transition:transform .3s, box-shadow .3s;background:#04050c}
.shots figure:hover{transform:translateY(-8px) scale(1.02);box-shadow:0 24px 60px rgba(53,200,255,.22)}

/* how to */
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:s}
.steps li{padding:26px;border-radius:18px;border:1px solid var(--line);background:var(--card)}
.steps b{font-size:12px;letter-spacing:.2em;color:var(--cyan)}
.steps h3{font-size:18px;margin:12px 0 10px}
.steps p{color:var(--muted);font-size:15px;margin:0}

/* faq */
.faq{display:grid;gap:12px}
details{border:1px solid var(--line);border-radius:16px;background:var(--card);padding:18px 22px}
details[open]{border-color:rgba(53,200,255,.35)}
summary{cursor:pointer;font-weight:600;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";float:right;color:var(--cyan);font-weight:400;font-size:20px;line-height:1}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin:12px 0 0;font-size:15px}

/* final */
.final{
  max-width:var(--maxw);margin:0 auto 40px;
  padding:70px max(20px,calc(50vw - var(--maxw)/2));text-align:center;
}
.final h2{font-size:clamp(26px,4vw,44px);margin-bottom:30px;font-weight:800}
.final .btn-play{justify-content:center}

/* footer */
.foot{border-top:1px solid var(--line);background:rgba(4,5,12,.7);padding:40px max(20px,calc(50vw - var(--maxw)/2)) 30px}
.foot-in{max-width:var(--maxw);margin:0 auto;display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center}
.foot-in>div{display:flex;align-items:center;gap:14px}
.foot-in img{border-radius:10px}
.foot-in p{margin:0;font-size:14px;color:var(--muted)}
.foot-in strong{color:var(--ink)}
.foot nav{display:flex;gap:22px;font-size:14px;color:var(--muted);flex-wrap:wrap}
.foot nav a:hover{color:var(--cyan)}
.fine{max-width:var(--maxw);margin:26px auto 0;font-size:12px;color:#5b6394}

/* reveal */
.reveal{opacity:0;transform:translateY(22px)}
.reveal.in{opacity:1;transform:none;transition:opacity .7s ease, transform .7s cubic-bezier(.2,.7,.3,1)}

@media (max-width:960px){
  .hero{grid-template-columns:1fr;padding-top:48px;gap:40px}
  .hero-art{order:-1}
  .cards,.grid-4,.steps{grid-template-columns:1fr 1fr}
  .shots{grid-template-columns:1fr 1fr}
  .blast{grid-template-columns:1fr;gap:16px;padding:28px}
  .blast-ring{height:120px}
  .nav-links{display:none}
}
@media (max-width:600px){
  .cards,.grid-4,.steps,.shots{grid-template-columns:1fr}
  .section{padding-top:60px;padding-bottom:60px}
  .hero-meta{gap:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}