:root {
  --primary: #2980FE;
  --primary-soft: #EAF3FF;
  --primary-ghost: #F5F9FF;
  --white: #FFFFFF;
  --bg: #F7FAFF;
  --bg-soft: #F2F6FC;
  --line: #E5EBF4;
  --text: #1F2937;
  --muted: #6B7280;
  --dark: #111827;
  --shadow: 0 18px 50px rgba(26, 68, 130, .10);
  --soft-shadow: 0 12px 34px rgba(41, 128, 254, .09);
  --radius: 28px;
  --radius-sm: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", Arial, sans-serif;
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 38%, #ffffff 100%);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.content-container { width: min(1120px, calc(100% - 36px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(229,235,244,.8);
}
.nav-wrap { width: min(1180px, calc(100% - 28px)); margin: 0 auto; min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--dark); letter-spacing: .02em; }
.logo { width: 38px; height: 38px; border-radius: 12px; box-shadow: 0 8px 20px rgba(41,128,254,.18); }
.site-nav { display: none; flex-direction: column; position: absolute; left: 14px; right: 14px; top: 72px; background: var(--white); border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); padding: 12px; }
.site-nav.is-open { display: flex; }
.site-nav a { padding: 11px 14px; border-radius: 14px; color: #42526E; font-size: 15px; }
.site-nav a.active, .site-nav a:hover { background: var(--primary-soft); color: var(--primary); }
.nav-toggle { border: 1px solid var(--line); background: var(--white); color: var(--dark); width: 42px; height: 42px; border-radius: 14px; font-size: 22px; }
.section { padding: 56px 0; }
.section-title { margin: 0 0 12px; font-size: clamp(30px, 6vw, 46px); line-height: 1.16; color: var(--dark); letter-spacing: -.04em; }
.section-lead { margin: 0 auto 28px; color: var(--muted); max-width: 760px; font-size: 17px; }
.gradient-bg { background: radial-gradient(circle at top right, rgba(41,128,254,.18), transparent 32%), linear-gradient(180deg, #fff, #f6faff); }
.launch-hero { position: relative; padding: 44px 0 54px; overflow: hidden; }
.launch-hero:before { content: ""; position: absolute; width: 360px; height: 360px; border-radius: 50%; right: -160px; top: 40px; background: rgba(41,128,254,.11); filter: blur(8px); }
.launch-grid { width: min(1180px, calc(100% - 32px)); margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: 34px; align-items: center; position: relative; }
.eyebrow, .category-badge { display: inline-flex; align-items: center; width: fit-content; gap: 8px; padding: 7px 13px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-weight: 800; font-size: 13px; letter-spacing: .04em; }
.launch-copy h1 { margin: 18px 0 16px; font-size: clamp(40px, 10vw, 76px); line-height: 1.03; letter-spacing: -.06em; color: var(--dark); }
.launch-copy p { margin: 0 0 22px; color: #526070; font-size: 18px; max-width: 650px; }
.download-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 26px; border-radius: 999px; background: var(--primary); color: var(--white); font-weight: 800; box-shadow: 0 14px 28px rgba(41,128,254,.28); border: 1px solid rgba(41,128,254,.12); transition: transform .2s ease, box-shadow .2s ease; }
.download-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 34px rgba(41,128,254,.35); }
.security-tags, .hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.security-tags span, .hero-tags span { padding: 8px 12px; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: #4B5563; font-size: 13px; box-shadow: 0 8px 24px rgba(30,64,120,.06); }
.hero-visual { position: relative; min-height: 390px; display: grid; place-items: center; border-radius: 36px; background: linear-gradient(145deg, #edf6ff, #ffffff 58%, #f2f7ff); border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden; }
.hero-visual:after { content: ""; position: absolute; inset: 14px; border: 1px solid rgba(41,128,254,.08); border-radius: 28px; pointer-events: none; }
.hero-phone { max-height: 420px; width: auto; margin: 30px auto; filter: drop-shadow(0 22px 38px rgba(41,128,254,.20)); }
.float-chip { position: absolute; background: rgba(255,255,255,.96); border: 1px solid var(--line); border-radius: 16px; padding: 10px 12px; color: #374151; font-weight: 700; box-shadow: 0 12px 28px rgba(41,128,254,.13); font-size: 13px; }
.float-chip.one { left: 16px; top: 42px; }
.float-chip.two { right: 18px; top: 112px; }
.float-chip.three { left: 24px; bottom: 72px; }
.float-chip.four { right: 26px; bottom: 34px; }
.highlight-bar { display: grid; grid-template-columns: 1fr; gap: 14px; }
.highlight-item, .category-card, .risk-card, .faq-item, .note-card, .step-card, .mini-card { background: var(--white); border: 1px solid var(--line); border-radius: 22px; padding: 20px; box-shadow: 0 10px 26px rgba(18,50,97,.05); }
.highlight-item b { color: var(--primary); display: block; font-size: 13px; margin-bottom: 6px; }
.highlight-item h3, .category-card h3, .risk-card h3, .step-card h3, .mini-card h3 { margin: 0 0 7px; color: var(--dark); line-height: 1.35; }
.highlight-item p, .category-card p, .risk-card p, .step-card p, .mini-card p { margin: 0 0 10px; color: var(--muted); }
.text-link { color: var(--primary); font-weight: 800; }
.launch-card { background: linear-gradient(180deg, #ffffff, #f8fbff); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--soft-shadow); }
.big-feature-card { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: center; padding: 26px; margin-top: 26px; overflow: hidden; }
.big-feature-card.reverse .feature-image { order: -1; }
.big-feature-card h2 { margin: 0 0 12px; font-size: clamp(28px, 6vw, 44px); color: var(--dark); letter-spacing: -.04em; line-height: 1.18; }
.big-feature-card p { color: var(--muted); margin: 0 0 15px; }
.feature-points { display: grid; gap: 9px; margin: 16px 0; padding: 0; list-style: none; }
.feature-points li { background: var(--primary-ghost); border: 1px solid #dcecff; border-radius: 14px; padding: 10px 12px; color: #3b4a5e; }
.feature-image { background: linear-gradient(160deg, var(--primary-soft), #fff); border-radius: 26px; padding: 22px; min-height: 260px; display: grid; place-items: center; }
.feature-image img { max-height: 360px; object-fit: contain; filter: drop-shadow(0 18px 28px rgba(27,72,148,.16)); }
.wallet-feature { background: linear-gradient(135deg, #fff, #f5f9ff); }
.cold-wallet-feature { background: linear-gradient(135deg, #f6f9fd, #ffffff); }
.swap-feature { background: linear-gradient(135deg, #ffffff, #f2f7ff); }
.dapp-feature { background: linear-gradient(135deg, #f7fbff, #ffffff); }
.process-steps { display: grid; grid-template-columns: 1fr; gap: 14px; counter-reset: step; }
.step-card { position: relative; padding-left: 76px; }
.step-no { position: absolute; left: 20px; top: 22px; width: 38px; height: 38px; border-radius: 14px; background: var(--primary); color: #fff; display: grid; place-items: center; font-weight: 900; }
.risk-grid, .category-grid, .app-category-center, .faq-grid, .guide-grid, .safety-panel { display: grid; grid-template-columns: 1fr; gap: 16px; }
.risk-card { border-left: 4px solid var(--primary); }
.risk-card em { display: block; font-style: normal; color: var(--primary); font-weight: 800; margin-bottom: 6px; }
.app-category-center .category-card { min-height: 166px; display: flex; flex-direction: column; justify-content: space-between; }
.faq-item h3 { margin: 0 0 8px; color: var(--dark); }
.faq-item p { margin: 0; color: var(--muted); }
.cta-section { margin: 34px auto 0; padding: 34px 24px; border-radius: 32px; text-align: center; background: radial-gradient(circle at top, rgba(41,128,254,.13), transparent 46%), linear-gradient(180deg, #ffffff, #f2f7ff); border: 1px solid var(--line); box-shadow: var(--soft-shadow); }
.cta-section h2 { margin: 0 0 10px; font-size: clamp(28px, 6vw, 42px); line-height: 1.2; color: var(--dark); }
.cta-section p { color: var(--muted); margin: 0 auto 18px; max-width: 720px; }
.page-hero { padding: 48px 0 28px; background: radial-gradient(circle at top right, rgba(41,128,254,.14), transparent 34%), linear-gradient(180deg, #fff, #f7fbff); }
.page-hero-inner { width: min(960px, calc(100% - 36px)); margin: 0 auto; }
.page-hero h1 { margin: 18px 0 12px; font-size: clamp(34px, 8vw, 58px); line-height: 1.1; letter-spacing: -.05em; color: var(--dark); }
.page-hero p { color: var(--muted); font-size: 18px; margin: 0; max-width: 760px; }
.page-layout { display: grid; grid-template-columns: 1fr; gap: 20px; width: min(1120px, calc(100% - 36px)); margin: 34px auto 56px; }
.article-card { background: #fff; border: 1px solid var(--line); border-radius: 28px; padding: 24px; box-shadow: var(--soft-shadow); }
.article-card h2 { margin-top: 0; color: var(--dark); line-height: 1.25; }
.article-card p { color: #4b5563; }
.check-list, .plain-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.check-list li, .plain-list li { padding: 12px 14px; background: var(--primary-ghost); border: 1px solid #dcecff; border-radius: 14px; color: #3d4d63; }
.sidebar { display: grid; gap: 16px; align-content: start; }
.aside-card { border: 1px solid var(--line); background: #fff; border-radius: 24px; padding: 20px; box-shadow: 0 10px 26px rgba(18,50,97,.05); }
.aside-card h3 { margin: 0 0 10px; color: var(--dark); }
.aside-card p, .aside-card li { color: var(--muted); }
.aside-card ul { padding-left: 20px; margin-bottom: 0; }
.download-panel { max-width: 780px; margin: 34px auto 56px; background: #fff; border: 1px solid var(--line); border-radius: 30px; padding: 26px; box-shadow: var(--shadow); }
.download-panel .download-btn { margin: 18px 0 6px; }
.site-footer { background: #f3f7fd; border-top: 1px solid var(--line); padding: 40px 0 18px; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 20px; }
.footer-brand img { width: 36px; height: 36px; border-radius: 12px; }
.site-footer p { color: var(--muted); margin: 12px 0 0; }
.site-footer h3 { margin: 0 0 10px; font-size: 16px; color: var(--dark); }
.site-footer a { display: block; color: #58677d; margin: 7px 0; }
.footer-bottom { border-top: 1px solid var(--line); margin-top: 28px; padding-top: 18px; color: var(--muted); font-size: 14px; }
@media (min-width: 640px) {
  .highlight-bar, .category-grid, .app-category-center, .risk-grid, .faq-grid, .guide-grid, .safety-panel { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .article-card { padding: 34px; }
}
@media (min-width: 860px) {
  .nav-toggle { display: none; }
  .site-nav { display: flex; position: static; flex-direction: row; align-items: center; padding: 0; border: 0; box-shadow: none; background: transparent; gap: 2px; }
  .site-nav a { font-size: 14px; padding: 9px 10px; }
  .launch-grid { grid-template-columns: 1.02fr .98fr; gap: 48px; }
  .launch-hero { padding: 70px 0 72px; }
  .highlight-bar { grid-template-columns: repeat(3, 1fr); }
  .big-feature-card { grid-template-columns: 1fr 1fr; padding: 42px; gap: 38px; }
  .big-feature-card.reverse .feature-image { order: 2; }
  .process-steps { grid-template-columns: repeat(3, 1fr); }
  .risk-grid { grid-template-columns: repeat(3, 1fr); }
  .app-category-center { grid-template-columns: repeat(4, 1fr); }
  .page-layout { grid-template-columns: minmax(0, 1fr) 320px; align-items: start; }
  .footer-grid { grid-template-columns: 1.4fr repeat(3, 1fr); }
}
@media (min-width: 1120px) {
  .site-nav a { padding: 9px 13px; }
  .section { padding: 72px 0; }
}