:root{
  --bg:#000000;
  --bg-2:#08090c;
  --panel:#0d0f14;
  --panel-2:#14171f;
  --panel-3:#1b1f29;
  --line:#1d2230;
  --line-2:#2a3142;
  --ink:#ffffff;
  --muted:#a7afc0;
  --dim:#717a8d;
  --blue:#0099ff;
  --blue-2:#38b6ff;
  --blue-deep:#0066ff;
  --up:#16c784;
  --down:#ea3943;
  --r-sm:14px;
  --r:22px;
  --r-lg:30px;
  --r-xl:40px;
  --max:1240px;
  --shadow:0 30px 90px rgba(0,0,0,.55);
  --glass:rgba(255,255,255,.04);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"Inter","Segoe UI",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.55;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  letter-spacing:-.01em;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 28px}
section{position:relative}

/* ====== top announcement strip ====== */
.topbar{background:var(--bg-2);border-bottom:1px solid var(--line);text-align:center;font-size:13px;color:var(--muted);padding:9px 16px}
.topbar b{color:var(--ink);font-weight:600}
.topbar a{color:var(--blue-2);font-weight:600}

/* ====== header ====== */
.nav{position:sticky;top:0;z-index:60;backdrop-filter:blur(18px);background:rgba(0,0,0,.6);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.02em}
.brand img{width:26px;height:26px}
.brand b{font-weight:800}
.menu{display:flex;gap:28px;margin-left:38px;font-size:14.5px;color:var(--muted);font-weight:500}
.menu a:hover{color:var(--ink)}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.lang-pick{display:flex;gap:5px;align-items:center;font-size:13px;color:var(--dim)}
.lang-pick a:hover{color:var(--ink)}
.lang-pick .on{color:var(--ink);font-weight:700}
.nav-login{font-size:14.5px;color:var(--ink);font-weight:600}
.nav-login:hover{color:var(--blue-2)}

/* ====== buttons ====== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:14.5px;padding:11px 22px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:.18s transform,.18s background,.18s box-shadow,.18s border-color;white-space:nowrap;letter-spacing:-.01em}
.btn:active{transform:translateY(1px)}
.btn-white{background:#fff;color:#0a0a0a}
.btn-white:hover{box-shadow:0 10px 30px rgba(255,255,255,.18)}
.btn-blue{background:linear-gradient(135deg,var(--blue),var(--blue-deep));color:#fff}
.btn-blue:hover{box-shadow:0 14px 38px rgba(0,153,255,.4)}
.btn-soft{background:var(--panel-3);color:var(--ink);border-color:var(--line-2)}
.btn-soft:hover{background:#222838;border-color:#384258}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue-2)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-lg{padding:14px 30px;font-size:16px}

/* ====== shared headline ====== */
.h-xl{font-size:clamp(40px,7.2vw,86px);line-height:.98;font-weight:800;letter-spacing:-.045em}
.h-lg{font-size:clamp(34px,5.6vw,64px);line-height:1.02;font-weight:800;letter-spacing:-.04em}
.h-md{font-size:clamp(28px,4vw,46px);line-height:1.05;font-weight:800;letter-spacing:-.035em}

/* ====== hero ====== */
.hero{text-align:center;padding:90px 0 70px;position:relative;overflow:hidden}
.hero-glow{position:absolute;top:-120px;left:50%;transform:translateX(-50%);width:900px;max-width:120vw;height:560px;background:radial-gradient(ellipse at center,rgba(0,153,255,.22),rgba(0,102,255,.08) 45%,transparent 70%);filter:blur(30px);pointer-events:none;z-index:0}
.hero>.wrap{position:relative;z-index:1}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--blue-2);background:rgba(0,153,255,.1);border:1px solid rgba(0,153,255,.3);padding:7px 16px;border-radius:999px;margin-bottom:26px}
.pill i{width:7px;height:7px;border-radius:50%;background:var(--blue-2);box-shadow:0 0 0 4px rgba(0,153,255,.2)}
.hero h1{margin:0 auto;max-width:13ch}
.hero h1 span{background:linear-gradient(110deg,var(--blue-2),var(--blue));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .sub{max-width:54ch;margin:24px auto 0;color:var(--muted);font-size:clamp(15px,1.9vw,19px);font-weight:450}
.hero-cta{display:flex;gap:13px;justify-content:center;flex-wrap:wrap;margin-top:34px}

/* ====== template / app gallery ====== */
.gallery{padding:8px 0 30px}
.gal-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.gal-col{display:grid;gap:16px}
.gcard{border-radius:var(--r);border:1px solid var(--line);overflow:hidden;background:var(--panel);position:relative;aspect-ratio:1/1.05}
.gcard.tall{aspect-ratio:1/1.5}
.gcard.wide{aspect-ratio:1/.78}
.gcard svg{width:100%;height:100%;display:block}
.gcard .tag{position:absolute;left:12px;bottom:12px;font-size:11.5px;font-weight:600;color:#fff;background:rgba(0,0,0,.5);backdrop-filter:blur(6px);padding:5px 11px;border-radius:999px;border:1px solid rgba(255,255,255,.14)}

/* ====== logo band ====== */
.logos{padding:46px 0 70px;text-align:center;border-bottom:1px solid var(--line)}
.logos .cap{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);margin-bottom:26px}
.logo-row{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:20px}
.logo-chip{display:flex;align-items:center;gap:9px;color:var(--muted);font-weight:700;font-size:16px;opacity:.78;padding:10px 18px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--glass)}
.logo-chip svg{width:20px;height:20px}

/* ====== big split section (create/collaborate) ====== */
.split{padding:96px 0}
.split-head{margin-bottom:48px}
.split-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:40px;align-items:start}
.acc{display:grid;gap:2px}
.acc-item{border-top:1px solid var(--line);padding:22px 4px;cursor:default}
.acc-item:last-child{border-bottom:1px solid var(--line)}
.acc-item h3{font-size:22px;font-weight:700;letter-spacing:-.02em;display:flex;align-items:center;gap:12px;color:var(--ink)}
.acc-item.dim h3{color:var(--dim)}
.acc-item .ai{width:30px;height:30px;border-radius:9px;background:var(--panel-2);display:flex;align-items:center;justify-content:center}
.acc-item p{color:var(--muted);font-size:15px;margin-top:14px;max-width:42ch;line-height:1.6}
.mock{border-radius:var(--r-lg);border:1px solid var(--line);background:linear-gradient(180deg,var(--panel-2),var(--panel));overflow:hidden;box-shadow:var(--shadow);position:relative}
.mock-bar{display:flex;align-items:center;gap:8px;padding:13px 16px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.mock-bar .d{width:11px;height:11px;border-radius:50%}
.mock-bar .url{margin-left:14px;font-size:12px;color:var(--dim);background:var(--bg-2);padding:5px 14px;border-radius:8px;border:1px solid var(--line)}
.mock-body{padding:0}

/* ====== bento grid (scale section) ====== */
.bento{padding:30px 0 96px}
.bento-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.bento-grid .col{display:grid;gap:18px}
.bcard{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 30px 0;overflow:hidden}
.bcard .bh{padding-bottom:24px}
.bcard .kick{font-size:13px;font-weight:700;color:var(--blue-2);letter-spacing:.02em}
.bcard h3{font-size:21px;font-weight:750;margin-top:10px;letter-spacing:-.02em}
.bcard p{color:var(--muted);font-size:14.5px;margin-top:8px;max-width:40ch}
.bcard .more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;color:var(--ink);font-size:14px;font-weight:600}
.bcard .more:hover{color:var(--blue-2)}
.bcard .vis{margin:6px -1px -1px;border-top:1px solid var(--line);background:var(--bg-2)}

/* mini market panel inside bento */
.mini-mkt{padding:18px 22px}
.mini-mkt .row{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--line);font-size:13.5px}
.mini-mkt .row:last-child{border-bottom:none}
.mini-mkt .sym{display:flex;align-items:center;gap:10px;font-weight:700}
.mini-mkt .dot{width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;color:#0a0a0a}
.mini-mkt .px{color:var(--muted);font-weight:600}
.mini-mkt .up{color:var(--up);font-weight:700}
.mini-mkt .down{color:var(--down);font-weight:700}

/* big number overview inside bento */
.ov{padding:22px}
.ov-nums{display:flex;gap:26px;flex-wrap:wrap}
.ov-nums .item .n{font-size:26px;font-weight:800;letter-spacing:-.02em}
.ov-nums .item .l{font-size:12px;color:var(--dim);margin-top:2px}
.ov-chart{margin-top:18px}

/* security rings */
.rings{display:flex;gap:24px;justify-content:center;padding:26px 16px;flex-wrap:wrap}
.ring{text-align:center}
.ring svg{margin:0 auto}
.ring .l{font-size:12px;color:var(--dim);margin-top:8px}

/* ====== teams band ====== */
.band{padding:80px 0}
.band h2{max-width:16ch}

/* ====== two big rows (experts / community) ====== */
.bigrow{padding:64px 0;border-top:1px solid var(--line)}
.bigrow-in{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.bigrow h2{max-width:14ch}
.bigrow .actions{display:flex;gap:10px;flex-wrap:wrap}
.bigrow .logos-mini{display:flex;gap:24px;align-items:center;color:var(--dim);font-weight:600;font-size:15px;margin-top:40px}
.bigrow .logos-mini b{color:var(--ink)}

/* ====== platforms strip ====== */
.plats{padding:30px 0 60px}
.plat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.plat{display:flex;align-items:center;gap:14px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:18px 18px;transition:.18s border-color,.18s transform}
.plat:hover{border-color:rgba(0,153,255,.45);transform:translateY(-3px)}
.plat .ic{width:42px;height:42px;flex:0 0 42px;border-radius:12px;background:var(--panel-2);display:flex;align-items:center;justify-content:center}
.plat b{font-size:15px;display:block}
.plat span{font-size:12.5px;color:var(--dim)}

/* ====== steps ====== */
.steps-sec{padding:50px 0 96px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:28px 24px;position:relative;overflow:hidden}
.step::before{counter-increment:s;content:"0"counter(s);position:absolute;top:16px;right:22px;font-size:42px;font-weight:800;color:rgba(0,153,255,.16);letter-spacing:-.04em}
.step h4{font-size:17px;font-weight:750;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}

/* ====== faq ====== */
.faq-sec{padding:30px 0 100px}
.faq{display:grid;gap:12px;max-width:880px;margin:0 auto}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:0 24px;transition:.18s border-color}
.faq details[open]{border-color:rgba(0,153,255,.4)}
.faq summary{list-style:none;cursor:pointer;font-weight:650;font-size:16.5px;padding:21px 0;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--blue-2);font-size:24px;font-weight:300;line-height:1;transition:.2s transform}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--muted);font-size:15px;padding:0 0 22px;line-height:1.65}

/* ====== final cta ====== */
.final{text-align:center;padding:130px 0 120px;position:relative;overflow:hidden}
.final-glow{position:absolute;bottom:-180px;left:50%;transform:translateX(-50%);width:900px;max-width:130vw;height:600px;background:radial-gradient(ellipse at center,rgba(0,153,255,.2),transparent 65%);filter:blur(34px);pointer-events:none}
.final>.wrap{position:relative;z-index:1}
.final h2{margin:0 auto;max-width:11ch}
.final .hero-cta{margin-top:36px}

/* ====== footer ====== */
.foot{border-top:1px solid var(--line);background:var(--bg-2);padding:64px 0 28px}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:30px}
.foot-brand .brand{margin-bottom:18px}
.foot-brand .desc{color:var(--dim);font-size:13.5px;max-width:30ch;line-height:1.6}
.foot-social{display:flex;gap:12px;margin-top:18px}
.foot-social a{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted)}
.foot-social a:hover{color:var(--ink);border-color:var(--line-2)}
.foot-status{display:flex;align-items:center;gap:8px;margin-top:18px;font-size:13px;color:var(--muted)}
.foot-status i{width:8px;height:8px;border-radius:50%;background:var(--up);box-shadow:0 0 0 3px rgba(22,199,132,.18)}
.fcol h5{font-size:13px;letter-spacing:.04em;color:var(--ink);margin-bottom:16px;font-weight:700}
.fcol a{display:block;color:var(--muted);font-size:14px;padding:6px 0}
.fcol a:hover{color:var(--ink)}
.foot-bot{margin-top:48px;padding-top:26px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center;color:var(--dim);font-size:13px}
.foot-badges{display:flex;gap:18px;align-items:center;color:var(--dim);font-size:12px;font-weight:600}
.risk{margin-top:24px;color:var(--dim);font-size:12.5px;line-height:1.7}

/* ====== responsive ====== */
@media(max-width:1040px){
  .foot-top{grid-template-columns:1fr 1fr 1fr}
  .foot-brand{grid-column:1/-1}
}
@media(max-width:920px){
  .gal-grid{grid-template-columns:repeat(2,1fr)}
  .split-grid{grid-template-columns:1fr;gap:34px}
  .bento-grid{grid-template-columns:1fr}
  .plat-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .menu{display:none}
}
@media(max-width:640px){
  .wrap{padding:0 18px}
  .topbar{font-size:12px}
  .nav-login{display:none}
  .gal-grid{grid-template-columns:1fr 1fr}
  .plat-grid,.steps{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr 1fr}
  .hero{padding:60px 0 48px}
  .split,.band{padding:60px 0}
  .bigrow-in{flex-direction:column;align-items:flex-start}
  .hero-cta .btn,.bigrow .actions{width:auto}
  .logo-chip{font-size:14px;padding:8px 13px}
  .ov-nums{gap:18px}
}
@media(max-width:420px){
  .foot-top{grid-template-columns:1fr}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%}
  .final .hero-cta .btn{width:100%}
  .logo-row{gap:12px}
}