/* Mobile first responsive product launch website */
:root{
  --primary:#2980FE;
  --primary-soft:#eaf3ff;
  --primary-pale:#f4f8ff;
  --white:#ffffff;
  --bg:#f7f9fc;
  --bg-blue:#f1f7ff;
  --line:#e5ebf3;
  --text:#1f2937;
  --muted:#657386;
  --deep:#111827;
  --shadow:0 18px 50px rgba(31, 64, 120, .10);
  --soft-shadow:0 10px 28px rgba(41, 128, 254, .10);
  --radius-lg:32px;
  --radius-md:24px;
  --radius-sm:18px;
  --container:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","Microsoft JhengHei",Arial,sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#fff 0%,#f8fbff 32%,#fff 100%);
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
p{margin:0 0 16px}
h1,h2,h3{margin:0;color:var(--deep);line-height:1.2;letter-spacing:-.02em}
h1{font-size:clamp(2.25rem,9vw,5.2rem)}
h2{font-size:clamp(1.85rem,6vw,3.35rem)}
h3{font-size:1.2rem}
ul,ol{margin:0;padding-left:20px}
li{margin:8px 0}
main{min-height:70vh}
.content-container,
.nav-wrap,
.footer-inner,
.footer-bottom{
  width:min(100% - 32px,var(--container));
  margin:0 auto;
}
.gradient-bg{
  background:
    radial-gradient(circle at 10% 10%, rgba(41,128,254,.16), transparent 32%),
    radial-gradient(circle at 90% 20%, rgba(41,128,254,.10), transparent 30%),
    linear-gradient(180deg,#fff 0%,#f2f7ff 100%);
}

/* header, logo, responsive nav, mobile nav, desktop nav */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(229,235,243,.88);
}
.nav-wrap{
  min-height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--deep);
  font-weight:800;
  white-space:nowrap;
}
.logo{width:38px;height:38px;border-radius:12px;object-fit:cover;box-shadow:var(--soft-shadow)}
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--line);border-radius:14px;
  background:var(--white);
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  cursor:pointer;
}
.nav-toggle span{width:18px;height:2px;border-radius:99px;background:var(--deep)}
.main-nav{
  position:absolute;
  top:68px;
  left:16px;
  right:16px;
  display:none;
  flex-direction:column;
  padding:14px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:var(--shadow);
}
.main-nav.open{display:flex}
.main-nav a{
  padding:11px 12px;
  border-radius:14px;
  color:var(--muted);
  font-size:.95rem;
  font-weight:700;
}
.main-nav a.active,
.main-nav a:hover{
  color:var(--primary);
  background:var(--primary-soft);
}

/* launch hero, app showcase, hero visual */
.launch-hero{
  position:relative;
  padding:52px 0 34px;
  overflow:hidden;
}
.launch-hero::before{
  content:"";
  position:absolute;
  width:360px;height:360px;border-radius:999px;
  background:rgba(41,128,254,.13);
  filter:blur(18px);
  right:-150px;top:40px;
}
.launch-hero-grid{
  position:relative;
  display:grid;
  gap:34px;
  align-items:center;
}
.eyebrow,
.category-badge{
  display:inline-flex;
  align-items:center;
  width:max-content;
  max-width:100%;
  gap:8px;
  padding:8px 13px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:800;
  font-size:.9rem;
}
.hero-copy h1{margin:18px 0 18px}
.hero-copy .lead{
  font-size:1.06rem;
  color:var(--muted);
  max-width:720px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:26px;
}
.download-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:13px 24px;
  border-radius:999px;
  background:var(--primary);
  color:var(--white);
  font-weight:850;
  border:1px solid var(--primary);
  box-shadow:0 14px 28px rgba(41,128,254,.24);
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
  cursor:pointer;
}
.download-btn:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(41,128,254,.30)}
.security-tags,
.pill-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.security-tags{margin-top:20px}
.security-tags span,
.pill-list span,
.feature-link,
.inline-link{
  display:inline-flex;
  align-items:center;
  padding:7px 11px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:.9rem;
  font-weight:700;
}
.inline-link,
.feature-link{
  color:var(--primary);
  background:var(--primary-soft);
  border-color:rgba(41,128,254,.16);
}
.app-showcase,
.hero-visual{
  position:relative;
  min-height:430px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.phone-frame{
  position:relative;
  width:min(280px,74vw);
  padding:14px;
  border-radius:42px;
  background:linear-gradient(160deg,#fff,#ecf4ff);
  border:1px solid rgba(41,128,254,.14);
  box-shadow:0 30px 78px rgba(41,128,254,.18);
}
.phone-frame img{border-radius:30px;object-fit:cover}
.float-tag{
  position:absolute;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:9px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  box-shadow:var(--soft-shadow);
  color:var(--deep);
  font-weight:800;
  font-size:.82rem;
}
.float-tag::before{
  content:"";
  width:8px;height:8px;border-radius:99px;background:var(--primary);
}
.tag-one{left:0;top:55px}
.tag-two{right:0;top:118px}
.tag-three{left:18px;bottom:92px}
.tag-four{right:4px;bottom:38px}

/* highlight bar, launch card */
.section{
  padding:54px 0;
}
.section-head{
  display:flex;
  flex-direction:column;
  gap:12px;
  margin-bottom:26px;
}
.section-head p{
  max-width:760px;
  color:var(--muted);
}
.highlight-bar{
  display:grid;
  gap:14px;
  grid-template-columns:1fr;
}
.launch-card,
.highlight-card,
.category-card,
.risk-card,
.info-card,
.faq-item,
.step-card,
.check-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:0 12px 32px rgba(17,24,39,.04);
}
.highlight-card{
  padding:18px;
  min-height:170px;
}
.card-kicker{
  display:inline-flex;
  padding:5px 9px;
  margin-bottom:12px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:.78rem;
  font-weight:850;
}
.highlight-card p{color:var(--muted);font-size:.95rem;margin:10px 0 14px}

/* big feature card, wallet feature, cold wallet feature, swap feature, dapp feature */
.big-feature-card{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
  padding:24px;
  border-radius:var(--radius-lg);
  background:var(--white);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  overflow:hidden;
  margin:20px 0;
}
.big-feature-card .feature-copy{
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.big-feature-card p{color:var(--muted)}
.feature-points{
  display:grid;
  gap:10px;
  margin:18px 0;
  padding:0;
  list-style:none;
}
.feature-points li{
  position:relative;
  padding-left:28px;
  color:var(--text);
}
.feature-points li::before{
  content:"";
  position:absolute;
  left:0;top:.65em;
  width:10px;height:10px;
  border-radius:99px;
  background:var(--primary);
  box-shadow:0 0 0 5px var(--primary-soft);
}
.feature-visual{
  min-height:250px;
  border-radius:28px;
  background:
    radial-gradient(circle at 30% 10%, rgba(41,128,254,.16), transparent 30%),
    linear-gradient(180deg,#f7fbff,#eef5ff);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:18px;
}
.feature-visual img{
  max-height:420px;
  object-fit:contain;
}
.wallet-feature{background:linear-gradient(135deg,#fff,#f7fbff)}
.cold-wallet-feature{
  background:linear-gradient(135deg,#f7fbff,#fff);
}
.swap-feature{background:linear-gradient(135deg,#fff,#f4f8ff)}
.dapp-feature{background:linear-gradient(135deg,#f8fbff,#fff)}
.feature-mini-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:12px;
  margin-top:16px;
}
.mini-card{
  padding:14px;
  border-radius:20px;
  background:rgba(255,255,255,.72);
  border:1px solid var(--line);
}

/* content pages */
.page-hero{
  padding:46px 0 24px;
}
.page-hero-inner{
  display:grid;
  gap:22px;
  padding:28px;
  border-radius:var(--radius-lg);
  background:
    radial-gradient(circle at 90% 0%,rgba(41,128,254,.15),transparent 32%),
    linear-gradient(135deg,#fff,#f4f8ff);
  border:1px solid var(--line);
  box-shadow:var(--soft-shadow);
}
.page-hero h1{font-size:clamp(2.1rem,8vw,4rem)}
.page-summary{
  color:var(--muted);
  font-size:1.03rem;
  max-width:820px;
}
.article-layout{
  display:grid;
  gap:22px;
  align-items:start;
}
.article-main{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px;
  box-shadow:0 12px 30px rgba(17,24,39,.04);
}
.article-main h2{font-size:1.6rem;margin:18px 0 12px}
.article-main h3{margin:18px 0 10px}
.article-main p{color:var(--muted)}
.article-aside{
  display:grid;
  gap:14px;
}
.safety-panel{
  padding:20px;
  border-radius:var(--radius-md);
  background:linear-gradient(180deg,#fff,#f5f9ff);
  border:1px solid var(--line);
  box-shadow:var(--soft-shadow);
}
.safety-panel h3{margin-bottom:10px}
.safety-panel p{color:var(--muted)}
.check-list{
  display:grid;
  gap:10px;
  padding:0;
  list-style:none;
  margin:14px 0 0;
}
.check-list li{
  padding:12px 14px;
  border-radius:16px;
  background:#fff;
  border:1px solid var(--line);
}
.check-list li strong{color:var(--deep)}
.note-box{
  padding:16px;
  border-radius:20px;
  border-left:4px solid var(--primary);
  background:var(--primary-pale);
  color:var(--muted);
  margin:18px 0;
}

/* process steps */
.process-steps{
  display:grid;
  gap:14px;
  counter-reset:steps;
}
.step-card{
  position:relative;
  padding:20px;
}
.step-number{
  display:inline-flex;
  width:34px;height:34px;
  align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--primary);
  color:#fff;
  font-weight:900;
  margin-bottom:14px;
}
.step-card p{color:var(--muted);font-size:.96rem}

/* risk grid */
.risk-grid{
  display:grid;
  gap:14px;
}
.risk-card{
  padding:20px;
  border-top:4px solid var(--primary);
}
.risk-card h3{margin-bottom:8px}
.risk-card p{color:var(--muted);font-size:.96rem}
.risk-action{
  margin-top:12px;
  padding:12px;
  border-radius:16px;
  background:var(--primary-pale);
  color:var(--text);
}

/* app category center, category grid */
.app-category-center{
  padding:26px;
  border-radius:var(--radius-lg);
  background:
    linear-gradient(180deg,#fff,#f5f9ff);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.category-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
}
.category-card{
  padding:18px;
  transition:transform .2s ease, box-shadow .2s ease;
}
.category-card:hover{transform:translateY(-3px);box-shadow:var(--soft-shadow)}
.category-card p{color:var(--muted);font-size:.95rem;margin:8px 0 12px}

/* FAQ item */
.faq-list{
  display:grid;
  gap:14px;
}
.faq-item{
  padding:20px;
}
.faq-item h3{font-size:1.05rem;margin-bottom:8px}
.faq-item p{color:var(--muted);margin-bottom:0}
.faq-page .faq-item{padding:22px}

/* download page */
.download-panel{
  max-width:840px;
  margin:0 auto;
  padding:28px;
  border-radius:var(--radius-lg);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.download-panel .download-btn{margin-top:12px}
.cta-section{
  text-align:center;
  padding:42px 24px;
  border-radius:var(--radius-lg);
  background:
    radial-gradient(circle at 20% 0%,rgba(41,128,254,.18),transparent 34%),
    linear-gradient(135deg,#f4f8ff,#fff);
  border:1px solid var(--line);
  box-shadow:var(--soft-shadow);
}
.cta-section p{
  max-width:690px;
  margin:14px auto 22px;
  color:var(--muted);
}

/* footer */
.site-footer{
  margin-top:50px;
  padding:36px 0 20px;
  background:#f4f7fb;
  border-top:1px solid var(--line);
}
.footer-inner{
  display:grid;
  gap:22px;
}
.footer-brand{
  display:flex;
  gap:14px;
  align-items:flex-start;
}
.footer-logo{width:42px;height:42px;border-radius:14px;object-fit:cover}
.footer-brand p{color:var(--muted);margin-top:5px}
.footer-links{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:10px;
}
.footer-links a{
  color:var(--muted);
  font-weight:700;
}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:24px;
  padding-top:18px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:.9rem;
}

/* tablet */
@media (min-width:640px){
  .highlight-bar{grid-template-columns:repeat(2,1fr)}
  .category-grid{grid-template-columns:repeat(2,1fr)}
  .risk-grid{grid-template-columns:repeat(2,1fr)}
  .process-steps{grid-template-columns:repeat(2,1fr)}
  .feature-mini-grid{grid-template-columns:repeat(2,1fr)}
  .footer-links{grid-template-columns:repeat(3,1fr)}
  .article-main{padding:30px}
}

/* desktop */
@media (min-width:980px){
  .nav-toggle{display:none}
  .main-nav{
    position:static;
    display:flex;
    flex-direction:row;
    align-items:center;
    padding:0;
    border:0;
    box-shadow:none;
    background:transparent;
    gap:2px;
  }
  .main-nav a{font-size:.91rem;padding:9px 10px}
  .launch-hero{padding:84px 0 46px}
  .launch-hero-grid{
    grid-template-columns:minmax(0,1.04fr) minmax(360px,.96fr);
    gap:58px;
  }
  .hero-copy .lead{font-size:1.16rem}
  .app-showcase{min-height:540px}
  .phone-frame{width:360px;padding:16px;border-radius:48px}
  .phone-frame img{border-radius:34px}
  .tag-one{left:20px;top:70px}
  .tag-two{right:14px;top:155px}
  .tag-three{left:0;bottom:126px}
  .tag-four{right:28px;bottom:70px}
  .section{padding:72px 0}
  .section-head{
    flex-direction:row;
    align-items:end;
    justify-content:space-between;
  }
  .section-head p{margin-bottom:0}
  .highlight-bar{grid-template-columns:repeat(3,1fr)}
  .big-feature-card{
    grid-template-columns:1fr 1fr;
    gap:38px;
    padding:38px;
    margin:28px 0;
  }
  .big-feature-card.reverse .feature-visual{order:1}
  .big-feature-card.reverse .feature-copy{order:2}
  .feature-visual{min-height:410px}
  .category-grid{grid-template-columns:repeat(4,1fr)}
  .risk-grid{grid-template-columns:repeat(3,1fr)}
  .process-steps{grid-template-columns:repeat(3,1fr)}
  .article-layout{grid-template-columns:minmax(0,1fr) 320px}
  .page-hero{padding:64px 0 32px}
  .footer-inner{grid-template-columns:1fr 1.2fr;align-items:start}
  .footer-links{grid-template-columns:repeat(3,1fr)}
}

@media (min-width:1180px){
  .main-nav a{padding:10px 12px}
  .feature-visual img{max-height:460px}
}