/* Novabit · dr-binance.com — bright sky-gradient, revolut-skeleton landing */
*,*::before,*::after{box-sizing:border-box}
:root{
  --ink:#0b1b2b;--ink2:#1c2e40;--mut:#5b6b7b;--soft:#8493a2;
  --bg:#ffffff;--bg2:#f3f7fb;--bg3:#eaf2fb;
  --brand:#0ea5e9;--brand2:#6366f1;--brandink:#fff;
  --gold:#f0b90b;--up:#16b979;
  --grad:linear-gradient(120deg,#0ea5e9 0%,#6366f1 100%);
  --sky:linear-gradient(180deg,#bfe6ff 0%,#dcefff 40%,#eef6ff 100%);
  --dark:#0a1422;--darkcard:#111f31;
  --line:#e3ebf3;--cardline:#e8eef5;
  --r:18px;--rs:12px;--wrap:1140px;
  --ff:"Segoe UI",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--ff);background:var(--bg);color:var(--ink);line-height:1.62;overflow-wrap:break-word;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p{margin:0}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 22px}
.row{display:flex;align-items:center}

.btn{display:inline-flex;align-items:center;gap:.5em;border:none;cursor:pointer;font-family:inherit;font-size:15px;font-weight:700;padding:13px 26px;border-radius:999px;transition:transform .12s,box-shadow .15s,background .15s,color .15s;line-height:1}
.btn:active{transform:translateY(1px)}
.btn-grad{background:var(--grad);color:#fff;box-shadow:0 8px 24px -8px rgba(99,102,241,.6)}
.btn-grad:hover{box-shadow:0 12px 30px -8px rgba(99,102,241,.75)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#15293c}
.btn-light{background:#fff;color:var(--ink);border:1.5px solid var(--line)}
.btn-light:hover{border-color:var(--brand);color:var(--brand)}
.btn-ghostd{background:rgba(255,255,255,.08);color:#fff;border:1.5px solid rgba(255,255,255,.25)}
.btn-ghostd:hover{background:rgba(255,255,255,.16)}
.btn-lg{padding:16px 32px;font-size:16px}
.arr::after{content:"→"}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line)}
.nav .row{height:66px;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:9px}
.nav-links{display:flex;gap:26px}
.nav-links a{color:var(--ink2);font-size:14.5px;font-weight:600}
.nav-links a:hover{color:var(--brand)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-right .lk{color:var(--ink2);font-size:14.5px;font-weight:700;background:none;border:none;cursor:pointer;font-family:inherit;padding:6px 4px}
.nav-right .lk:hover{color:var(--brand)}

/* hero */
.hero{background:var(--sky);position:relative;overflow:hidden;padding:78px 0 90px}
.hero .wrap{display:grid;grid-template-columns:1.04fr .96fr;gap:42px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.7);border:1px solid rgba(14,165,233,.25);color:#0b6ea8;font-weight:700;font-size:13px;padding:7px 14px;border-radius:999px;margin-bottom:20px}
.badge i{width:7px;height:7px;border-radius:50%;background:var(--up);display:inline-block}
.hero h1{font-size:clamp(38px,5.4vw,66px);line-height:1.05;font-weight:800;letter-spacing:-.6px;color:#06243a}
.hero h1 .g{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .lead{margin-top:20px;font-size:18px;color:#274055;max-width:33em}
.cta-row{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.hero-note{margin-top:18px;font-size:13.5px;color:#4d6276}
.hero-art{position:relative;display:flex;justify-content:center}
.phone-card{position:relative;background:#0a1422;border-radius:34px;padding:14px;box-shadow:0 40px 80px -30px rgba(8,30,55,.55);width:248px}
.phone-card .scr{background:#0e1b2c;border-radius:24px;overflow:hidden}
.float{position:absolute;background:#fff;border-radius:16px;box-shadow:0 20px 40px -16px rgba(8,30,55,.4);padding:14px 16px;display:flex;align-items:center;gap:12px}
.float.f1{top:34px;left:-26px}
.float.f2{bottom:48px;right:-22px}
.float .ic{width:36px;height:36px;border-radius:10px;background:linear-gradient(120deg,#fff5d6,#ffe9a8);display:flex;align-items:center;justify-content:center;color:var(--gold);flex:none}
.float b{font-size:15px;display:block}
.float span{font-size:12px;color:var(--mut)}

/* trust bar */
.tbar{background:#fff;border-bottom:1px solid var(--line)}
.tbar .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px 30px;padding:26px 22px}
.tbar .t{display:flex;flex-direction:column}
.tbar .t b{font-size:24px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.tbar .t span{font-size:13px;color:var(--mut)}

/* dark showcase */
.show{background:var(--dark);color:#eaf1f8;padding:84px 0}
.show .wrap{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.show.alt .sx-text{order:2}
.sx-text .kick{color:#5fd0ff;font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
.sx-text h2{margin-top:14px;font-size:clamp(27px,3.4vw,40px);font-weight:800;letter-spacing:-.3px;line-height:1.12}
.sx-text p{margin-top:16px;color:#9fb3c6;font-size:16.5px}
.sx-text .acts{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}
.shot{background:var(--darkcard);border:1px solid #1d2f44;border-radius:20px;padding:16px}

/* feature grid (light) */
.feat{padding:84px 0;background:var(--bg)}
.feat .head{text-align:center;max-width:680px;margin:0 auto 48px}
.feat .head h2{font-size:clamp(28px,3.6vw,42px);font-weight:800;letter-spacing:-.3px}
.feat .head p{margin-top:14px;color:var(--mut);font-size:16.5px}
.fgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.fcard{background:var(--bg2);border:1px solid var(--cardline);border-radius:var(--r);padding:28px 26px;transition:transform .12s,box-shadow .15s}
.fcard:hover{transform:translateY(-3px);box-shadow:0 18px 36px -20px rgba(8,30,55,.35)}
.fcard .fi{width:50px;height:50px;border-radius:14px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.fcard .fi svg{width:26px;height:26px}
.fcard h4{font-size:18px;font-weight:700}
.fcard p{margin-top:9px;color:var(--mut);font-size:15px}

/* gradient banner */
.banner{background:var(--grad);color:#fff;padding:80px 0}
.banner .wrap{text-align:center;max-width:760px}
.banner h2{font-size:clamp(28px,4vw,46px);font-weight:800;letter-spacing:-.4px}
.banner p{margin:16px auto 0;font-size:17px;color:rgba(255,255,255,.9);max-width:42em}
.banner .acts{margin-top:30px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* plan / device cards */
.plans{padding:84px 0;background:var(--bg2)}
.plans .head{text-align:center;max-width:640px;margin:0 auto 46px}
.plans .head h2{font-size:clamp(27px,3.4vw,40px);font-weight:800;letter-spacing:-.3px}
.plans .head p{margin-top:14px;color:var(--mut);font-size:16.5px}
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pcard{background:#fff;border:1px solid var(--cardline);border-radius:var(--r);padding:26px 22px;text-align:left;cursor:pointer;font-family:inherit;color:inherit;transition:transform .12s,border-color .15s,box-shadow .15s}
.pcard:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:0 18px 36px -22px rgba(14,165,233,.5)}
.pcard .pi{width:44px;height:44px;color:var(--brand);margin-bottom:14px}
.pcard h4{font-size:17px;font-weight:700}
.pcard .d{margin-top:7px;color:var(--soft);font-size:13px}
.pcard .go{margin-top:16px;color:var(--brand);font-weight:700;font-size:14px}

/* steps */
.steps-sec{padding:84px 0;background:var(--bg)}
.steps-sec h2{text-align:center;font-size:clamp(27px,3.4vw,40px);font-weight:800;letter-spacing:-.3px}
.steps-sec .sub{text-align:center;color:var(--mut);margin:14px auto 0;max-width:44em;font-size:16.5px}
.steps{margin-top:46px;display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{position:relative;background:var(--bg2);border:1px solid var(--cardline);border-radius:var(--r);padding:30px 26px}
.step .num{width:42px;height:42px;border-radius:12px;background:var(--grad);color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.step h4{font-size:18px;font-weight:700}
.step p{margin-top:9px;color:var(--mut);font-size:15px}

/* faq */
.faq-sec{padding:30px 0 88px;background:var(--bg)}
.faq-sec h2{text-align:center;font-size:clamp(26px,3.3vw,38px);font-weight:800;margin-bottom:38px;letter-spacing:-.3px}
.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.qa{background:var(--bg2);border:1px solid var(--cardline);border-radius:14px;overflow:hidden}
.qa summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:700;font-size:16px;display:flex;justify-content:space-between;gap:14px;align-items:center}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";color:var(--brand);font-size:22px;font-weight:700;flex:none}
.qa[open] summary::after{content:"–"}
.qa .a{padding:0 22px 20px;color:var(--mut);font-size:15.5px}

/* end cta */
.endcta{padding:90px 0;text-align:center;background:var(--sky)}
.endcta h2{font-size:clamp(30px,4.4vw,52px);font-weight:800;letter-spacing:-.5px;color:#06243a;max-width:16em;margin:0 auto;line-height:1.08}
.endcta p{margin:18px auto 0;color:#274055;font-size:17px;max-width:40em}
.endcta .acts{margin-top:32px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* footer */
footer{background:var(--dark);color:#9fb3c6;padding:62px 0 40px}
.fcols{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:30px}
.fbrand{max-width:260px}
.fbrand .brand{margin-bottom:14px}
.fbrand p{font-size:13.5px;color:#7d92a6}
.fcol h5{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:#cdd9e5;margin-bottom:14px}
.fcol a{display:block;color:#9fb3c6;font-size:14px;padding:5px 0}
.fcol a:hover{color:#5fd0ff}
.fline{height:1px;background:#1d2f44;margin:38px 0 22px}
.fbar{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:13px;color:#7d92a6}
.risk{margin-top:18px;font-size:12.5px;color:#5e7186;line-height:1.7}

@media(max-width:920px){
  .nav-links{display:none}
  .hero .wrap,.show .wrap{grid-template-columns:1fr;gap:40px}
  .show.alt .sx-text{order:0}
  .hero-art{order:-1;margin-bottom:20px}
  .fgrid,.steps{grid-template-columns:1fr}
  .pgrid{grid-template-columns:1fr 1fr}
  .fcols{grid-template-columns:1fr 1fr}
  .fbrand{grid-column:1/-1}
}
@media(max-width:430px){
  .wrap{padding:0 16px}
  .hero{padding:54px 0 64px}
  .hero h1{font-size:34px}
  .float.f1{left:-8px}.float.f2{right:-6px}
  .cta-row .btn,.banner .acts .btn,.endcta .acts .btn,.sx-text .acts .btn{width:100%;justify-content:center}
  .pgrid,.fcols{grid-template-columns:1fr}
  .fbar{flex-direction:column;gap:6px}
}