*{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#0d0a1f;
  --bg-2:#120e28;
  --panel:#171234;
  --panel-2:#1c1440;
  --line:#2a2352;
  --line-2:#221c46;
  --ink:#f0edff;
  --ink-2:#a99fda;
  --ink-3:#6f66a0;
  --purple:#7c5cff;
  --purple-2:#5f35e0;
  --purple-soft:rgba(124,92,255,.14);
  --violet:#b8a6ff;
  --green:#4ade80;
  --red:#f87171;
  --grad:linear-gradient(135deg,#8b6bff,#5f35e0);
  --radius:16px;
  --wrap:1180px;
  --head-h:68px;
}

html{scroll-behavior:smooth}

body{
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body.nav-open{overflow:hidden}

a{color:inherit;text-decoration:none}
ul{list-style:none}
img,svg{display:block;max-width:100%}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
i,em{font-style:normal}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ===== header ===== */
.site-head{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(13,10,31,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .25s,box-shadow .25s;
}
.site-head.scrolled{
  border-color:var(--line-2);
  box-shadow:0 14px 40px rgba(0,0,0,.45);
}
.head-inner{display:flex;align-items:center;gap:28px;min-height:var(--head-h)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:30px;height:30px}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
.brand-divider{width:1px;height:18px;background:var(--line)}
.brand-sub{
  font-size:12.5px;
  font-weight:700;
  color:var(--violet);
  background:var(--purple-soft);
  border-radius:999px;
  padding:3px 11px;
}

.nav-menu{display:flex;align-items:center;gap:4px;flex:1}
.nav-menu a{
  padding:8px 14px;
  font-size:14.5px;
  color:var(--ink-2);
  border-radius:9px;
  transition:color .2s,background .2s;
}
.nav-menu a:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.nav-menu a.active{color:var(--violet);background:var(--purple-soft)}

.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.ghost-link{font-size:14px;color:var(--ink-2);transition:color .2s}
.ghost-link:hover{color:var(--violet)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:12px;
  font-size:14.5px;
  font-weight:700;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn-purple{
  background:var(--grad);
  color:#fff;
  box-shadow:0 12px 30px rgba(95,53,224,.4);
}
.btn-purple:hover{box-shadow:0 16px 38px rgba(95,53,224,.5)}
.btn-line{
  border:1.5px solid var(--line);
  color:var(--ink);
  background:transparent;
}
.btn-line:hover{border-color:var(--purple);color:var(--violet)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-lg{padding:16px 36px;font-size:16px}
.btn-block{width:100%}

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:42px;height:42px;
  border:1.5px solid var(--line);
  border-radius:11px;
  padding:0 10px;
}
.nav-toggle span{
  display:block;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .25s,opacity .25s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-nav{
  display:none;
  flex-direction:column;
  gap:2px;
  padding:10px 24px 24px;
  background:var(--bg-2);
  border-bottom:1px solid var(--line-2);
}
.mobile-nav.open{display:flex}
.mobile-nav a{
  padding:13px 14px;
  border-radius:11px;
  font-size:15px;
  color:var(--ink-2);
}
.mobile-nav a:hover{background:rgba(255,255,255,.05);color:var(--ink)}
.mobile-nav .btn{margin-top:12px}

/* ===== hero ===== */
.hero{
  position:relative;
  padding:84px 0 72px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  top:-260px;right:-180px;
  width:720px;height:720px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.28),transparent 65%);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  bottom:-300px;left:-200px;
  width:620px;height:620px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(95,53,224,.18),transparent 65%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--violet);
  background:var(--purple-soft);
  border:1px solid rgba(124,92,255,.3);
  border-radius:999px;
  padding:6px 15px;
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(32px,4vw,48px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.22;
  margin-bottom:20px;
}
.hero h1 .grad{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{color:var(--ink-2);max-width:520px;margin-bottom:32px;font-size:16px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap}
.hero-stats .hs b{display:block;font-size:22px;font-weight:900;letter-spacing:-.01em}
.hero-stats .hs span{font-size:12.5px;color:var(--ink-3)}

/* ===== phone mockup ===== */
.phone{
  position:relative;
  width:min(302px,100%);
  margin:0 auto;
}
.phone-frame{
  position:relative;
  background:linear-gradient(180deg,#221a4c,#0e0a22);
  border:1px solid #362a6e;
  border-radius:46px;
  padding:13px;
  box-shadow:
    0 46px 100px rgba(60,30,180,.42),
    0 0 0 1px rgba(255,255,255,.04) inset,
    0 0 70px rgba(124,92,255,.2);
}
.phone-frame::before{
  content:"";
  position:absolute;
  top:24px;left:50%;
  transform:translateX(-50%);
  width:96px;height:22px;
  background:#0a0718;
  border-radius:999px;
  z-index:3;
}
.phone-screen{
  position:relative;
  height:552px;
  background:#110c26;
  border-radius:34px;
  overflow:hidden;
}
.p-screen{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  gap:11px;
  padding:52px 18px 16px;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .45s ease,transform .45s ease,visibility .45s;
}
.p-screen.active{
  opacity:1;
  visibility:visible;
  transform:none;
}
.p-top{
  position:absolute;
  top:18px;left:20px;right:20px;
  display:flex;
  justify-content:space-between;
  font-size:11.5px;
  color:var(--ink-3);
}
.p-title{font-size:16px;font-weight:800;margin-bottom:3px}
.p-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  background:var(--panel-2);
  border:1px solid var(--line-2);
  border-radius:13px;
  padding:12px 14px;
}
.p-card b{display:block;font-size:13.5px}
.p-card span{font-size:11.5px;color:var(--ink-3)}
.p-card em{font-size:13px;font-weight:700}
.p-card em.up{color:var(--green)}
.p-card em.down{color:var(--red)}
.p-seg{
  display:grid;
  grid-template-columns:1fr 1fr;
  background:var(--panel-2);
  border:1px solid var(--line-2);
  border-radius:11px;
  padding:4px;
  font-size:13px;
  text-align:center;
}
.p-seg span{padding:7px 0;border-radius:8px;color:var(--ink-3)}
.p-seg span.on{background:var(--grad);color:#fff;font-weight:700}
.p-field{
  display:flex;
  justify-content:space-between;
  align-items:center;
  background:var(--panel-2);
  border:1px solid var(--line-2);
  border-radius:11px;
  padding:12px 14px;
  font-size:12.5px;
}
.p-field span{color:var(--ink-3)}
.p-field b{font-weight:700}
.p-btn{
  margin-top:auto;
  text-align:center;
  background:var(--grad);
  border-radius:12px;
  padding:13px 0;
  font-size:14px;
  font-weight:800;
  color:#fff;
  box-shadow:0 10px 24px rgba(95,53,224,.4);
}
.p-total{
  background:linear-gradient(135deg,rgba(124,92,255,.22),rgba(95,53,224,.08));
  border:1px solid rgba(124,92,255,.32);
  border-radius:15px;
  padding:16px;
}
.p-total span{font-size:11.5px;color:var(--ink-2)}
.p-total b{display:block;font-size:21px;font-weight:900;letter-spacing:-.01em;margin-top:4px}
.p-bar{height:7px;border-radius:999px;background:var(--line-2);overflow:hidden}
.p-bar i{display:block;height:100%;border-radius:999px;background:var(--grad)}
.p-bar i.alt{background:linear-gradient(90deg,#4ade80,#22c55e)}
.p-nav{
  margin-top:auto;
  display:flex;
  justify-content:space-around;
  padding-top:12px;
  border-top:1px solid var(--line-2);
}
.p-nav i{
  width:26px;height:5px;
  border-radius:999px;
  background:var(--line);
}
.p-nav i.on{background:var(--purple)}

/* ===== feature tabs under hero ===== */
.ft-row{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-top:56px;
}
.ft-item{
  text-align:left;
  background:var(--panel);
  border:1px solid var(--line-2);
  border-radius:var(--radius);
  padding:22px 24px;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.ft-item:hover{transform:translateY(-3px);border-color:var(--line)}
.ft-item.active{
  border-color:rgba(124,92,255,.5);
  box-shadow:0 18px 44px rgba(95,53,224,.22);
}
.ft-item .ft-num{
  font-size:12px;
  font-weight:800;
  color:var(--ink-3);
  letter-spacing:.1em;
}
.ft-item.active .ft-num{color:var(--violet)}
.ft-item h3{font-size:16px;font-weight:800;margin:8px 0 6px}
.ft-item p{font-size:13.5px;color:var(--ink-2)}

/* ===== section ===== */
.section{padding:82px 0}
.section.alt{
  background:var(--bg-2);
  border-top:1px solid var(--line-2);
  border-bottom:1px solid var(--line-2);
}
.section-head{max-width:680px;margin-bottom:46px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-tag{
  display:inline-block;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--violet);
  background:var(--purple-soft);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
}
.section-head h2{
  font-size:clamp(25px,2.8vw,34px);
  font-weight:900;
  letter-spacing:-.015em;
  margin-bottom:12px;
}
.section-head p{color:var(--ink-2)}

/* ===== feature cards ===== */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature-card{
  background:var(--panel);
  border:1px solid var(--line-2);
  border-radius:var(--radius);
  padding:30px 26px;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.feature-card:hover{
  transform:translateY(-4px);
  border-color:rgba(124,92,255,.42);
  box-shadow:0 22px 52px rgba(95,53,224,.2);
}
.feature-card .fc-icon{
  width:46px;height:46px;
  border-radius:13px;
  background:var(--purple-soft);
  border:1px solid rgba(124,92,255,.3);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:20px;
}
.feature-card .fc-icon svg{width:24px;height:24px}
.feature-card h3{font-size:17px;font-weight:800;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--ink-2)}

/* ===== feature rows ===== */
.f-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:34px 0;
}
.f-row + .f-row{border-top:1px solid var(--line-2)}
.f-row .f-copy .f-kicker{
  font-size:12.5px;
  font-weight:800;
  letter-spacing:.12em;
  color:var(--violet);
  margin-bottom:12px;
  display:block;
}
.f-row .f-copy h2{font-size:clamp(22px,2.4vw,29px);font-weight:900;letter-spacing:-.01em;margin-bottom:14px}
.f-row .f-copy p{color:var(--ink-2);margin-bottom:18px}
.f-row .f-copy ul{display:grid;gap:10px}
.f-row .f-copy li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--ink-2);
}
.f-row .f-copy li::before{
  content:"";
  flex-shrink:0;
  width:18px;height:18px;
  margin-top:3px;
  border-radius:6px;
  background:var(--purple-soft);
  border:1px solid rgba(124,92,255,.35);
  background-image:linear-gradient(var(--violet),var(--violet));
  background-size:8px 2px;
  background-position:center;
  background-repeat:no-repeat;
}
.f-visual{
  background:linear-gradient(160deg,rgba(124,92,255,.16),rgba(95,53,224,.04));
  border:1px solid var(--line);
  border-radius:22px;
  padding:34px;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:300px;
}
.f-visual .fv-inner{width:100%;max-width:340px;display:grid;gap:12px}
.fv-bar-row{display:flex;align-items:center;gap:12px;font-size:13px}
.fv-bar-row span{width:74px;flex-shrink:0;color:var(--ink-2)}
.fv-bar-row .track{flex:1;height:8px;background:var(--panel-2);border-radius:999px;overflow:hidden}
.fv-bar-row .track i{display:block;height:100%;border-radius:999px;background:var(--grad)}
.w-24{width:24%}
.w-38{width:38%}
.w-46{width:46%}
.w-56{width:56%}
.w-68{width:68%}
.w-70{width:70%}
.w-76{width:76%}
.w-82{width:82%}
.w-88{width:88%}
.fv-badge-row{display:flex;gap:10px;flex-wrap:wrap}
.fv-badge-row .chip{
  font-size:12.5px;
  border:1px solid var(--line);
  border-radius:999px;
  padding:6px 14px;
  color:var(--ink-2);
}
.fv-badge-row .chip.on{background:var(--purple-soft);border-color:rgba(124,92,255,.4);color:var(--violet)}

/* ===== changelog ===== */
.log{position:relative;padding-left:32px}
.log::before{
  content:"";
  position:absolute;
  left:8px;top:10px;bottom:10px;
  width:2px;
  background:linear-gradient(180deg,rgba(124,92,255,.6),var(--line-2));
}
.log-item{position:relative;padding-bottom:26px}
.log-item:last-child{padding-bottom:0}
.log-item::before{
  content:"";
  position:absolute;
  left:-30px;top:8px;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--bg);
  border:3px solid var(--purple);
  box-shadow:0 0 0 4px rgba(124,92,255,.16);
}
.log-card{
  background:var(--panel);
  border:1px solid var(--line-2);
  border-radius:var(--radius);
  padding:24px 26px;
  transition:border-color .25s,box-shadow .25s;
}
.log-card:hover{border-color:rgba(124,92,255,.4);box-shadow:0 16px 40px rgba(95,53,224,.18)}
.log-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.log-head h3{font-size:16.5px;font-weight:800}
.log-ver{
  font-size:12.5px;
  font-weight:800;
  color:var(--violet);
  background:var(--purple-soft);
  border-radius:999px;
  padding:3px 12px;
}
.log-date{font-size:12.5px;color:var(--ink-3)}
.log-card ul{display:grid;gap:8px}
.log-card li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--ink-2);
}
.log-card li::before{
  content:"";
  flex-shrink:0;
  width:6px;height:6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--purple);
}

/* ===== download panel ===== */
.dl-card{
  max-width:720px;
  margin:0 auto;
  background:linear-gradient(160deg,rgba(124,92,255,.2),rgba(23,18,52,.9));
  border:1px solid rgba(124,92,255,.36);
  border-radius:24px;
  padding:48px 44px;
  text-align:center;
  box-shadow:0 40px 90px rgba(60,30,180,.35);
}
.dl-card .app-icon{
  width:82px;height:82px;
  margin:0 auto 22px;
  border-radius:22px;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 22px 48px rgba(95,53,224,.45);
}
.dl-card .app-icon svg{width:44px;height:44px}
.dl-card h2{font-size:24px;font-weight:900;margin-bottom:10px}
.dl-card .dl-sub{color:var(--ink-2);font-size:14.5px;margin-bottom:28px}
.dl-meta{
  display:flex;
  justify-content:center;
  gap:10px;
  flex-wrap:wrap;
  margin-top:20px;
  font-size:12.5px;
  color:var(--ink-3);
}
.dl-meta .pill{
  background:rgba(124,92,255,.16);
  color:var(--violet);
  font-weight:700;
  border-radius:999px;
  padding:4px 13px;
}

/* ===== page head ===== */
.page-head{
  position:relative;
  padding:62px 0 48px;
  border-bottom:1px solid var(--line-2);
  background:var(--bg-2);
  overflow:hidden;
}
.page-head::before{
  content:"";
  position:absolute;
  top:-200px;right:-140px;
  width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.22),transparent 65%);
}
.crumb{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--ink-3);
  margin-bottom:16px;
}
.crumb a{color:var(--ink-2);transition:color .2s}
.crumb a:hover{color:var(--violet)}
.page-head h1{
  position:relative;
  font-size:clamp(27px,3.1vw,37px);
  font-weight:900;
  letter-spacing:-.015em;
  margin-bottom:12px;
}
.page-head .sub{position:relative;color:var(--ink-2);max-width:640px}

/* ===== cta ===== */
.cta-panel{
  position:relative;
  overflow:hidden;
  background:linear-gradient(135deg,rgba(124,92,255,.28),rgba(95,53,224,.12));
  border:1px solid rgba(124,92,255,.36);
  border-radius:24px;
  padding:58px 48px;
  text-align:center;
}
.cta-panel::before{
  content:"";
  position:absolute;
  top:-140px;left:50%;
  transform:translateX(-50%);
  width:520px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.4),transparent 70%);
  pointer-events:none;
}
.cta-panel h2{
  position:relative;
  font-size:clamp(23px,2.6vw,32px);
  font-weight:900;
  letter-spacing:-.01em;
  margin-bottom:12px;
}
.cta-panel p{position:relative;color:var(--ink-2);max-width:540px;margin:0 auto 28px}
.cta-panel .cta-actions{
  position:relative;
  display:flex;
  gap:14px;
  justify-content:center;
  flex-wrap:wrap;
}

/* ===== footer ===== */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid var(--line-2);
  padding:60px 0 30px;
}
.footer-cols{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid var(--line-2);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--ink-3);max-width:300px}
.footer-col h3{font-size:13.5px;font-weight:800;margin-bottom:16px;color:var(--ink-2)}
.footer-col a{
  display:block;
  font-size:13.5px;
  color:var(--ink-3);
  padding:5px 0;
  transition:color .2s;
}
.footer-col a:hover{color:var(--violet)}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  font-size:13px;
  color:var(--ink-3);
}

/* ===== motion ===== */
body.js .fade-up{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .65s ease,transform .65s ease;
}
body.js .fade-up.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  body.js .fade-up{opacity:1;transform:none;transition:none}
}

/* ===== responsive ===== */
@media (max-width:992px){
  .nav-menu,.nav-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .hero{padding:60px 0 54px}
  .hero-grid{grid-template-columns:1fr;gap:52px}
  .hero-lead{max-width:none}
  .ft-row{grid-template-columns:1fr;margin-top:44px}
  .feature-grid{grid-template-columns:1fr 1fr}
  .f-row{grid-template-columns:1fr;gap:30px;padding:28px 0}
  .footer-cols{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:60px 0}
  .feature-grid{grid-template-columns:1fr}
  .phone-screen{height:500px}
  .dl-card{padding:38px 26px}
  .cta-panel{padding:46px 26px}
}
@media (max-width:560px){
  .wrap{padding:0 18px}
  .hero-ctas .btn{flex:1}
  .hero-stats{gap:24px}
  .footer-cols{grid-template-columns:1fr;gap:28px}
  .f-visual{padding:24px;min-height:0}
}