@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root{
  --ink:#0e1726; --ink2:#1f2a3a; --muted:#5b6675; --faint:#8a94a3;
  --line:#e9ecf2; --soft:#f5f7fb; --soft2:#eef2f9; --white:#fff;
  --accent:#2f6bff; --accent-d:#1f4fd6; --indigo:#6d5efc; --ok:#16a34a;
  --radius:16px; --shadow:0 10px 30px -12px rgba(16,30,60,.18);
  --shadow-sm:0 2px 10px -4px rgba(16,30,60,.12);
  --maxw:1100px;
  --font:"Plus Jakarta Sans",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
img{max-width:100%}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--accent);background:rgba(47,107,255,.08);padding:5px 12px;border-radius:999px}
h1,h2,h3{line-height:1.2;letter-spacing:-.01em;margin:0}
.muted{color:var(--muted)}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.78);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid transparent;transition:border-color .2s,box-shadow .2s}
.nav.scrolled{border-color:var(--line);box-shadow:0 1px 0 rgba(16,30,60,.04)}
.nav-in{display:flex;align-items:center;gap:14px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink)}
.mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(140deg,#1b2435,#0b1220);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;box-shadow:var(--shadow-sm)}
.brand small{display:block;font-size:10px;font-weight:600;letter-spacing:.18em;color:var(--faint)}
.nav-links{display:flex;gap:26px;margin-left:18px}
.nav-links a{color:var(--ink2);font-weight:600;font-size:15px}
.nav-links a:hover{color:var(--accent)}
.nav-cta{margin-left:auto;display:flex;gap:10px;align-items:center}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:11px 20px;border-radius:11px;cursor:pointer;border:1px solid transparent;transition:transform .12s ease,background .15s,box-shadow .15s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -8px rgba(47,107,255,.6)}
.btn-primary:hover{background:var(--accent-d)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-lg{padding:14px 26px;font-size:16px;border-radius:13px}

/* hero */
.hero{position:relative;overflow:hidden;padding:84px 0 72px}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:
  radial-gradient(1100px 460px at 78% -8%,rgba(109,94,252,.16),transparent 60%),
  radial-gradient(900px 420px at 8% 6%,rgba(47,107,255,.14),transparent 55%),
  linear-gradient(#fff,#f7f9fe)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(34px,4.6vw,54px);font-weight:800;margin:18px 0 16px}
.hero h1 .grad{background:linear-gradient(90deg,var(--accent),var(--indigo));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:19px;color:var(--muted);max-width:30em;margin:0 0 28px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-note{margin-top:16px;font-size:13.5px;color:var(--faint);display:flex;gap:14px;flex-wrap:wrap}
.hero-note span{display:inline-flex;align-items:center;gap:6px}

/* product mock (app floating panel) */
.mock{background:rgba(255,255,255,.7);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:16px;transform:rotate(.6deg)}
.mock .bar{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.mock .pill{font-size:11px;font-weight:700;color:#16a34a;background:rgba(22,163,74,.12);padding:3px 9px;border-radius:999px;display:inline-flex;align-items:center;gap:5px}
.mock .pill.blue{color:var(--accent);background:rgba(47,107,255,.12)}
.mock .q{font-size:12px;color:var(--faint);font-weight:600}
.mock .qt{font-size:14px;color:var(--ink2);margin:4px 0 14px}
.mock .say{font-size:11px;font-weight:700;color:var(--accent)}
.mock .saybox{background:rgba(47,107,255,.07);border-radius:10px;padding:11px 12px;margin-top:5px;font-size:14.5px;font-weight:600;color:var(--ink)}
.mock .dots{display:flex;gap:5px;margin-top:14px}
.mock .dots i{width:7px;height:7px;border-radius:50%;background:var(--soft2);display:inline-block}
.mock .dots i:first-child{background:#ff5f57}.mock .dots i:nth-child(2){background:#febc2e}.mock .dots i:nth-child(3){background:#28c840}

/* ===== device mockups (Mac window + iPhone) ===== */
.showcase{position:relative;padding-left:34px;padding-bottom:34px}
.mac{width:min(580px,100%);border-radius:16px;background:#fff;border:1px solid var(--line);
  box-shadow:0 44px 90px -34px rgba(16,30,60,.45),0 14px 34px -16px rgba(16,30,60,.22);overflow:hidden}
.mac-bar{height:36px;display:flex;align-items:center;gap:7px;padding:0 14px;background:linear-gradient(#fbfcfe,#eef2f8);border-bottom:1px solid var(--line)}
.tl{width:11px;height:11px;border-radius:50%;display:inline-block}
.tl.r{background:#ff5f57}.tl.y{background:#febc2e}.tl.g{background:#28c840}
.mac-title{margin-left:8px;font-size:11px;color:var(--faint);font-weight:600}
.mac-body{display:flex;min-height:332px}
.side{width:152px;background:var(--soft);border-right:1px solid var(--line);padding:13px 10px;flex-shrink:0}
.side .lg{display:flex;align-items:center;gap:7px;margin:0 4px 14px}
.side .lg .mk{width:24px;height:24px;border-radius:7px;background:linear-gradient(140deg,#1b2435,#0b1220);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800}
.side .lg b{font-size:13px}
.nav-i{display:flex;align-items:center;gap:8px;padding:7px 9px;border-radius:8px;font-size:12.5px;color:var(--ink2);margin-bottom:2px}
.nav-i.on{background:var(--accent);color:#fff;font-weight:600}
.nav-i svg{width:15px;height:15px;opacity:.85}
.macmain{flex:1;padding:16px}
.macmain .h{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:13px}
.macmain .h b{font-size:19px}
.macmain .h .sub{font-size:11px;color:var(--faint);margin-left:6px}
.qz{font-size:11px;font-weight:700;color:var(--muted);background:#fff;border:1px solid var(--line);padding:3px 10px;border-radius:999px;display:inline-flex;align-items:center;gap:4px}
.qz svg{width:11px;height:11px;color:var(--accent)}
.scz{display:flex;gap:7px;margin-bottom:13px}
.scz .s{flex:1;text-align:center;font-size:11.5px;font-weight:600;padding:9px 0;border-radius:10px;background:var(--soft);color:var(--ink2)}
.scz .s.on{background:rgba(47,107,255,.12);color:var(--accent);box-shadow:inset 0 0 0 1px rgba(47,107,255,.35)}
.earbtn{display:flex;align-items:center;gap:9px;background:var(--accent);color:#fff;border-radius:12px;padding:12px 14px;font-size:13.5px;font-weight:700;margin-bottom:13px;box-shadow:0 8px 18px -8px rgba(47,107,255,.55)}
.earbtn svg{width:18px;height:18px}
.earbtn small{display:block;font-weight:500;font-size:10.5px;opacity:.85}
.ansc{border:1px solid var(--line);border-radius:12px;padding:13px}
.ansc .lab{font-size:11px;font-weight:700;color:var(--muted);margin-bottom:7px}
.ansc .t{font-size:11px;font-weight:700;color:var(--accent)}
.ansc .b{font-size:13px;font-weight:600;background:rgba(47,107,255,.07);border-radius:9px;padding:10px;margin-top:5px;color:var(--ink);line-height:1.55}

.iphone{position:absolute;left:0;bottom:0;width:178px;border-radius:34px;background:#0a0a0c;padding:6px;
  box-shadow:0 34px 64px -22px rgba(16,30,60,.55);border:1px solid #2a2a2e}
.iscreen{border-radius:28px;overflow:hidden;background:#fff;position:relative}
.notch{position:absolute;top:8px;left:50%;transform:translateX(-50%);width:52px;height:15px;background:#0a0a0c;border-radius:999px;z-index:2}
.ip-in{padding:30px 12px 16px}
.ip-bar{display:flex;align-items:center;gap:6px;margin-bottom:10px}
.ip-bar .mk{width:20px;height:20px;border-radius:6px;background:linear-gradient(140deg,#1b2435,#0b1220);color:#fff;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800}
.ip-pill{font-size:9px;font-weight:700;color:#16a34a;background:rgba(22,163,74,.12);padding:2px 7px;border-radius:999px}
.ip-q{font-size:10px;color:var(--faint);font-weight:600}
.ip-qt{font-size:12px;color:var(--ink2);margin:3px 0 12px}
.ip-say{font-size:9px;font-weight:700;color:var(--accent)}
.ip-saybox{font-size:12px;font-weight:600;background:rgba(47,107,255,.08);border-radius:9px;padding:9px;margin-top:4px;color:var(--ink);line-height:1.5}

@media(max-width:900px){.showcase{padding-left:24px;display:flex;justify-content:center}.iphone{display:none}}
@media(max-width:420px){.mac-body{min-height:auto}.side{width:120px}}

/* sections */
section{padding:72px 0}
.section-head{text-align:center;max-width:40em;margin:0 auto 44px}
.section-head h2{font-size:clamp(26px,3.2vw,38px);font-weight:800;margin:12px 0 12px}
.section-head p{color:var(--muted);font-size:17px;margin:0}
.soft-bg{background:var(--soft)}

/* feature cards (scenes) */
.cards{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .18s ease,box-shadow .18s,border-color .18s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#dfe5f0}
.chip{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:linear-gradient(140deg,rgba(47,107,255,.14),rgba(109,94,252,.14));color:var(--accent);margin-bottom:16px}
.chip svg{width:24px;height:24px}
.card h3{font-size:20px;font-weight:700;margin-bottom:8px}
.card .tag{font-size:12px;font-weight:700;color:var(--indigo);background:rgba(109,94,252,.1);padding:3px 9px;border-radius:999px;margin-left:8px;vertical-align:middle}
.card p{color:var(--muted);font-size:15px;margin:0}

/* capabilities */
.caps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cap{padding:22px;border-radius:14px;background:#fff;border:1px solid var(--line)}
.cap .ci{width:40px;height:40px;border-radius:10px;background:var(--soft);display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:12px}
.cap .ci svg{width:22px;height:22px}
.cap h4{margin:0 0 6px;font-size:16.5px;font-weight:700}
.cap p{margin:0;color:var(--muted);font-size:14px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:s}
.step{position:relative;padding:24px;border-radius:14px;background:#fff;border:1px solid var(--line)}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:-16px;left:24px;width:34px;height:34px;border-radius:10px;background:linear-gradient(140deg,var(--accent),var(--indigo));color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}
.step h4{margin:12px 0 6px;font-size:17px}
.step p{margin:0;color:var(--muted);font-size:14.5px}

/* pricing / cta */
.cta-band{background:linear-gradient(135deg,#101a30,#0b1220);color:#fff;border-radius:24px;padding:56px 40px;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 300px at 80% 0%,rgba(109,94,252,.4),transparent 60%),radial-gradient(600px 280px at 10% 100%,rgba(47,107,255,.35),transparent 55%);opacity:.7}
.cta-band > *{position:relative}
.cta-band h2{font-size:clamp(26px,3.4vw,36px);font-weight:800;margin-bottom:12px}
.cta-band p{color:#b9c2d4;font-size:17px;margin:0 auto 26px;max-width:34em}
.cta-band .btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.18)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff}
.price-line{margin-top:18px;font-size:14px;color:#93a0b6}

/* footer */
footer.site{border-top:1px solid var(--line);padding:44px 0;color:var(--muted);font-size:14.5px}
.foot-in{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot-links a{color:var(--ink2);font-weight:600;margin-left:22px}
.foot-links a:hover{color:var(--accent)}

/* content pages (support/privacy) */
.doc{max-width:820px;margin:0 auto;padding:56px 24px}
.doc h1{font-size:34px;font-weight:800;margin-bottom:6px}
.doc h2{font-size:20px;font-weight:700;margin:34px 0 10px}
.doc .box{border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:16px 0;background:var(--soft)}
.doc details{border-bottom:1px solid var(--line);padding:14px 2px}
.doc summary{cursor:pointer;font-weight:700;font-size:16px;list-style:none}
.doc summary::-webkit-details-marker{display:none}
.doc summary::before{content:"+";color:var(--accent);font-weight:800;margin-right:10px}
.doc details[open] summary::before{content:"–"}
.doc details p{color:var(--muted);margin:10px 0 4px;padding-left:22px}
.doc li{margin:.35em 0}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .mock{transform:none;order:-1}
  .caps,.steps{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
}
@media(max-width:600px){
  section{padding:54px 0}
  .hero{padding:56px 0 48px}
  .cards,.caps,.steps{grid-template-columns:1fr}
  .cta-band{padding:40px 22px}
  .foot-links a{margin:0 16px 0 0}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .card,.btn{transition:none}
}