:root {
  --primary: #2980FE;
  --primary-soft: #EAF3FF;
  --primary-faint: #F4F8FF;
  --white: #ffffff;
  --bg: #F7F9FC;
  --surface: #ffffff;
  --soft-gray: #EEF2F6;
  --border: #E2E8F0;
  --text: #1F2937;
  --muted: #667085;
  --muted-2: #98A2B3;
  --shadow: 0 18px 45px rgba(21, 39, 72, .08);
  --shadow-soft: 0 10px 30px rgba(41, 128, 254, .10);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
p { margin: 0 0 16px; color: var(--muted); }
h1, h2, h3 { margin: 0; color: var(--text); line-height: 1.18; letter-spacing: -.02em; }
h1 { font-size: clamp(2.25rem, 7vw, 5.25rem); }
h2 { font-size: clamp(1.65rem, 4.5vw, 3.05rem); }
h3 { font-size: 1.18rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.88);
  border-bottom: 1px solid rgba(226,232,240,.9);
  backdrop-filter: blur(18px);
}
.header-inner {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; color: #111827; }
.logo img { width: 38px; height: 38px; object-fit: contain; border-radius: 12px; }
.site-nav { display: none; align-items: center; gap: 6px; }
.site-nav a {
  padding: 9px 12px;
  border-radius: 999px;
  color: #475467;
  font-size: .94rem;
  white-space: nowrap;
}
.site-nav a:hover, .site-nav a.active { color: var(--primary); background: var(--primary-soft); }
.mobile-nav-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--white);
  color: var(--text);
  font-size: 1.35rem;
}
.site-nav.open {
  display: grid;
  position: absolute;
  left: 16px;
  right: 16px;
  top: 76px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 14px;
  background: rgba(255,255,255,.98);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: 22px;
}
.site-nav.open a { background: var(--primary-faint); }

.content-container, .section, .page-hero, .page-content, .cta-section, .site-footer .footer-inner {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}
.section { padding: 54px 0; }
.gradient-bg {
  background:
    radial-gradient(circle at 15% 10%, rgba(41,128,254,.16), transparent 28%),
    radial-gradient(circle at 88% 18%, rgba(41,128,254,.14), transparent 32%),
    linear-gradient(180deg, #fff 0%, #F4F8FF 100%);
}
.eyebrow, .category-badge, .tag, .mini-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--primary);
  background: var(--primary-soft);
  font-weight: 700;
  font-size: .86rem;
}
.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 26px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  border: 1px solid var(--primary);
  box-shadow: 0 14px 30px rgba(41,128,254,.28);
  transition: transform .2s ease, box-shadow .2s ease;
  cursor: pointer;
}
.download-btn:hover { transform: translateY(-2px); box-shadow: 0 20px 40px rgba(41,128,254,.32); }

.launch-hero {
  padding: 56px 0 36px;
  position: relative;
  overflow: hidden;
}
.launch-hero .content-container {
  display: grid;
  gap: 34px;
  align-items: center;
}
.hero-copy { display: grid; gap: 18px; }
.hero-copy p { max-width: 680px; font-size: 1.04rem; }
.trust-tags, .hero-tags, .pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.trust-tags span, .pill-row span {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.78);
  border: 1px solid var(--border);
  color: #344054;
  font-size: .9rem;
}
.app-showcase, .hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 430px;
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, rgba(255,255,255,.92), rgba(234,243,255,.92));
  border: 1px solid rgba(226,232,240,.8);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.hero-visual::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(41,128,254,.12);
  filter: blur(20px);
}
.hero-visual img { position: relative; width: min(78%, 380px); max-height: 440px; object-fit: contain; z-index: 1; }
.float-label {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  padding: 9px 13px;
  border-radius: 999px;
  background: rgba(255,255,255,.92);
  border: 1px solid var(--border);
  box-shadow: 0 12px 24px rgba(16,24,40,.08);
  color: #344054;
  font-weight: 700;
  font-size: .86rem;
}
.float-label.one { left: 18px; top: 18%; }
.float-label.two { right: 18px; top: 30%; }
.float-label.three { left: 26px; bottom: 22%; }
.float-label.four { right: 22px; bottom: 16%; }

.highlight-bar {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 14px;
}
.highlight-card, .category-card, .risk-card, .faq-item, .step-card, .info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: 0 8px 24px rgba(16,24,40,.04);
}
.highlight-card { display: grid; gap: 10px; min-height: 170px; }
.highlight-card .tag { margin-bottom: 2px; }
.card-link { color: var(--primary); font-weight: 800; display: inline-flex; margin-top: 4px; }

.launch-card, .big-feature-card {
  display: grid;
  gap: 28px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: clamp(22px, 5vw, 46px);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.big-feature-card.alt { background: linear-gradient(135deg, #fff 0%, #F4F8FF 100%); }
.feature-copy { display: grid; gap: 16px; }
.feature-points, .check-list, .soft-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.feature-points li, .check-list li, .soft-list li {
  position: relative;
  padding-left: 26px;
  color: #344054;
}
.feature-points li::before, .check-list li::before, .soft-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 5px var(--primary-soft);
}
.feature-media {
  border-radius: 28px;
  background: linear-gradient(145deg, #F9FBFF, #EAF3FF);
  border: 1px solid rgba(226,232,240,.9);
  padding: 18px;
  min-height: 280px;
  display: grid;
  place-items: center;
}
.feature-media img { max-height: 420px; object-fit: contain; }
.wallet-feature .feature-media { background: linear-gradient(145deg, #FFFFFF, #EEF6FF); }
.cold-wallet-feature .feature-media { background: linear-gradient(145deg, #F7F9FC, #EAF3FF); }
.swap-feature .feature-media { background: linear-gradient(145deg, #FFFFFF, #F4F8FF); }
.dapp-feature .feature-media { background: linear-gradient(145deg, #F8FBFF, #EEF6FF); }

.process-steps { display: grid; gap: 14px; counter-reset: step; }
.step-card { position: relative; padding-top: 58px; }
.step-card::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 18px;
  left: 20px;
  color: var(--primary);
  font-size: 1.15rem;
  font-weight: 900;
}
.risk-grid, .category-grid, .app-category-center { display: grid; gap: 14px; }
.risk-card { border-left: 4px solid var(--primary); }
.risk-card strong { display: block; color: var(--text); margin-bottom: 6px; }
.safety-panel {
  background: linear-gradient(135deg, #F4F8FF, #FFFFFF);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: clamp(22px, 5vw, 38px);
}
.faq-list { display: grid; gap: 14px; }
.faq-item h3 { margin-bottom: 8px; }
.cta-section {
  margin-top: 32px;
  margin-bottom: 54px;
  text-align: center;
  border-radius: var(--radius-xl);
  padding: clamp(30px, 6vw, 56px) 20px;
  background: radial-gradient(circle at 50% 0%, rgba(41,128,254,.18), transparent 45%), linear-gradient(135deg, #FFFFFF, #EEF6FF);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}
.cta-section p { max-width: 680px; margin-left: auto; margin-right: auto; }

.page-hero {
  padding: 54px 0 28px;
  display: grid;
  gap: 18px;
}
.page-hero p { max-width: 780px; font-size: 1.04rem; }
.page-content { display: grid; gap: 24px; padding-bottom: 56px; }
.article-layout { display: grid; gap: 22px; align-items: start; }
.article-main, .article-side {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: clamp(22px, 5vw, 34px);
  box-shadow: 0 10px 28px rgba(16,24,40,.04);
}
.article-main { display: grid; gap: 18px; }
.article-main h2 { font-size: clamp(1.35rem, 3vw, 2rem); }
.article-side { display: grid; gap: 16px; }
.callout {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(41,128,254,.18);
  background: var(--primary-faint);
  padding: 18px;
}
.two-col { display: grid; gap: 16px; }
.info-card h3 { margin-bottom: 8px; }
.download-panel { margin-top: 6px; display: flex; justify-content: flex-start; }
.download-page-grid { display: grid; gap: 20px; }
.download-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: clamp(24px, 5vw, 42px);
  box-shadow: var(--shadow);
}
.numbered-list { margin: 0; padding-left: 20px; color: #344054; }
.numbered-list li { margin: 8px 0; }

.site-footer { background: #fff; border-top: 1px solid var(--border); padding: 36px 0 18px; }
.footer-inner { display: grid; gap: 24px; }
.footer-brand p { max-width: 560px; margin-top: 12px; }
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.footer-links a { color: #475467; padding: 8px 0; }
.footer-links a:hover { color: var(--primary); }
.footer-bottom { width: min(100% - 32px, var(--container)); margin: 22px auto 0; padding-top: 18px; border-top: 1px solid var(--border); color: var(--muted-2); font-size: .9rem; }

@media (min-width: 640px) {
  .highlight-bar, .risk-grid, .category-grid, .app-category-center, .process-steps, .two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .download-page-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 860px) {
  .mobile-nav-toggle { display: none; }
  .site-nav { display: flex; }
  .launch-hero { padding: 82px 0 46px; }
  .launch-hero .content-container { grid-template-columns: 1.02fr .98fr; gap: 56px; }
  .big-feature-card { grid-template-columns: 1fr 1fr; }
  .big-feature-card.reverse .feature-copy { order: 2; }
  .big-feature-card.reverse .feature-media { order: 1; }
  .highlight-bar { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .process-steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .risk-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .app-category-center { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .article-layout { grid-template-columns: minmax(0, 1fr) 330px; }
  .footer-inner { grid-template-columns: 1.2fr .8fr; align-items: start; }
  .footer-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1120px) {
  .category-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 420px) {
  .content-container, .section, .page-hero, .page-content, .cta-section, .site-footer .footer-inner { width: min(100% - 24px, var(--container)); }
  .download-btn { width: 100%; }
  .float-label { font-size: .78rem; padding: 7px 10px; }
  .float-label.two, .float-label.four { right: 10px; }
  .float-label.one, .float-label.three { left: 10px; }
}