:root {
  --brand: #2980FE;
  --brand-deep: #1767D6;
  --brand-soft: #EAF3FF;
  --ice: #F5F8FD;
  --gray: #F7F9FC;
  --white: #FFFFFF;
  --ink: #172033;
  --text: #465266;
  --muted: #718096;
  --line: #DCE6F2;
  --footer: #10233F;
  --shadow: 0 18px 55px rgba(32, 81, 143, .12);
  --shadow-soft: 0 12px 34px rgba(40, 88, 150, .08);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", Arial, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
p, h1, h2, h3, h4 { margin-top: 0; }
section { position: relative; }

.skip-link {
  position: fixed;
  left: 14px;
  top: 10px;
  z-index: 9999;
  transform: translateY(-160%);
  padding: 10px 15px;
  border-radius: 10px;
  background: var(--footer);
  color: #fff;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(220, 230, 242, .86);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(16px);
}
.header-shell {
  width: var(--container);
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand { flex: 0 0 auto; display: inline-flex; align-items: center; }
.brand img { max-height: 44px; width: auto; object-fit: contain; }
.desktop-nav {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  white-space: nowrap;
}
.nav-link, .nav-trigger {
  position: relative;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0 11px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.nav-link:hover, .nav-trigger:hover, .nav-link:focus-visible, .nav-trigger:focus-visible,
.nav-link.is-active, .nav-group.is-current > .nav-trigger { color: var(--brand-deep); background: var(--brand-soft); outline: none; }
.nav-trigger span { color: var(--muted); font-size: 13px; }
.nav-group { position: relative; }
.mega-menu {
  position: absolute;
  left: 50%;
  top: calc(100% + 14px);
  width: min(760px, 82vw);
  transform: translate(-50%, 8px);
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--white);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: .2s ease;
}
.mega-menu::before { content: ""; position: absolute; left: 0; right: 0; top: -18px; height: 18px; }
.nav-group:hover .mega-menu, .nav-group:focus-within .mega-menu, .nav-group.is-open .mega-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.mega-menu-compact { width: min(680px, 82vw); }
.mega-intro {
  padding: 20px;
  border-radius: 18px;
  background: linear-gradient(145deg, var(--brand-deep), var(--brand));
  color: #fff;
}
.mega-intro strong { display: block; margin-bottom: 8px; font-size: 19px; }
.mega-intro p { margin: 0; color: rgba(255,255,255,.84); font-size: 13px; line-height: 1.65; }
.mega-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.mega-links a { padding: 13px 14px; border-radius: 14px; transition: .18s ease; }
.mega-links a:hover, .mega-links a:focus-visible { background: var(--ice); outline: none; }
.mega-links b { display: block; color: var(--ink); font-size: 14px; }
.mega-links span { display: block; margin-top: 2px; color: var(--muted); font-size: 12px; }
.header-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 8px; }
.download-btn {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  color: #fff;
  font-weight: 800;
  line-height: 1;
  box-shadow: 0 10px 26px rgba(41, 128, 254, .22);
  transition: transform .18s ease, box-shadow .18s ease;
}
.download-btn:hover, .download-btn:focus-visible { transform: translateY(-2px); box-shadow: 0 15px 32px rgba(41, 128, 254, .28); outline: none; }
.menu-toggle { width: 46px; height: 46px; padding: 0; border: 1px solid var(--line); border-radius: 14px; background: #fff; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; cursor: pointer; }
.menu-toggle span { width: 18px; height: 2px; border-radius: 3px; background: var(--ink); }

.mobile-overlay { position: fixed; inset: 0; z-index: 1100; background: rgba(11, 30, 59, .46); opacity: 0; transition: opacity .22s ease; }
.mobile-overlay.is-visible { opacity: 1; }
.mobile-menu { position: fixed; top: 0; right: 0; bottom: 0; z-index: 1200; width: min(430px, 92vw); padding: 18px; background: #fff; box-shadow: -20px 0 65px rgba(16,35,63,.18); transform: translateX(105%); transition: transform .25s ease; overflow-y: auto; }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.mobile-close { width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 14px; background: #fff; color: var(--ink); font-size: 27px; cursor: pointer; }
.mobile-menu-body { padding-top: 12px; }
.mobile-menu details, .mobile-home { display: block; border-bottom: 1px solid var(--line); }
.mobile-menu summary, .mobile-home { min-height: 52px; display: flex; align-items: center; justify-content: space-between; color: var(--ink); font-weight: 800; cursor: pointer; list-style: none; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu summary::after { content: "+"; font-size: 22px; color: var(--brand); }
.mobile-menu details[open] summary::after { content: "−"; }
.mobile-menu details a { min-height: 46px; display: flex; align-items: center; padding: 0 14px; margin: 3px 0; border-radius: 12px; background: var(--ice); color: var(--text); }
.mobile-download { width: 100%; margin-top: 18px; }

main { overflow: hidden; }
.container { width: var(--container); margin-inline: auto; }
.section-pad { padding: 96px 0; }
.section-pad-sm { padding: 68px 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px; color: var(--brand-deep); font-size: 13px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 24px; height: 2px; border-radius: 4px; background: var(--brand); }
.section-head { max-width: 730px; margin-bottom: 34px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head h2, .inner-section h2 { margin-bottom: 13px; color: var(--ink); font-size: clamp(30px, 4vw, 48px); line-height: 1.2; letter-spacing: -.035em; }
.section-head p { margin-bottom: 0; color: var(--muted); font-size: 17px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 14px; color: var(--brand-deep); font-weight: 800; }
.text-link::after { content: "→"; transition: transform .18s ease; }
.text-link:hover::after { transform: translateX(4px); }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.secondary-btn { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; padding: 0 20px; border: 1px solid var(--line); border-radius: 14px; background: #fff; color: var(--ink); font-weight: 800; }
.secondary-btn:hover, .secondary-btn:focus-visible { border-color: var(--brand); color: var(--brand-deep); outline: none; }

.hero { padding: 76px 0 56px; background: radial-gradient(circle at 78% 22%, rgba(41,128,254,.18), transparent 27%), linear-gradient(180deg, #F8FBFF 0%, #fff 100%); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr); align-items: center; gap: 50px; }
.hero-copy h1 { max-width: 760px; margin-bottom: 20px; color: var(--ink); font-size: clamp(44px, 6vw, 78px); line-height: 1.04; letter-spacing: -.055em; }
.hero-copy .lead { max-width: 720px; color: var(--text); font-size: clamp(18px, 2vw, 22px); }
.hero-copy .detail { max-width: 720px; margin: 18px 0 0; color: var(--muted); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.hero-tags span { padding: 8px 13px; border: 1px solid #cfe1ff; border-radius: 999px; background: rgba(255,255,255,.85); color: var(--brand-deep); font-size: 13px; font-weight: 800; }
.hero-visual { position: relative; min-height: 520px; display: flex; align-items: center; justify-content: center; }
.hero-orbit { position: absolute; width: 410px; height: 410px; border: 1px dashed rgba(41,128,254,.32); border-radius: 50%; }
.hero-orbit::before, .hero-orbit::after { content: ""; position: absolute; border: 1px solid rgba(41,128,254,.14); border-radius: 50%; }
.hero-orbit::before { inset: 38px; }
.hero-orbit::after { inset: 86px; }
.hero-product { position: relative; z-index: 2; max-height: 470px; object-fit: contain; filter: drop-shadow(0 30px 40px rgba(25,78,147,.18)); }
.float-note { position: absolute; z-index: 3; max-width: 180px; padding: 13px 15px; border: 1px solid rgba(220,230,242,.9); border-radius: 15px; background: rgba(255,255,255,.9); box-shadow: var(--shadow-soft); color: var(--ink); font-size: 13px; font-weight: 800; backdrop-filter: blur(10px); }
.float-note small { display: block; margin-top: 3px; color: var(--muted); font-weight: 600; }
.float-note.one { top: 62px; left: 0; }
.float-note.two { top: 210px; right: -15px; }
.float-note.three { bottom: 45px; left: 18px; }

.capability-strip { width: var(--container); margin: 0 auto; transform: translateY(22px); display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: var(--shadow-soft); overflow: hidden; }
.capability-item { padding: 23px; }
.capability-item + .capability-item { border-left: 1px solid var(--line); }
.capability-item b { display: block; margin-bottom: 6px; color: var(--ink); font-size: 16px; }
.capability-item p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }

.category-mosaic { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-flow: dense; gap: 16px; }
.category-card { position: relative; min-height: 225px; display: flex; flex-direction: column; justify-content: space-between; padding: 25px; border: 1px solid var(--line); border-radius: 22px; background: #fff; overflow: hidden; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.category-card:hover { transform: translateY(-5px); border-color: #bcd5fa; box-shadow: var(--shadow-soft); }
.category-card::after { content: attr(data-index); position: absolute; right: 18px; top: 8px; color: rgba(41,128,254,.09); font-size: 64px; font-weight: 900; line-height: 1; }
.category-card h3 { position: relative; z-index: 1; margin-bottom: 8px; color: var(--ink); font-size: 21px; }
.category-card p { position: relative; z-index: 1; margin: 0; color: var(--muted); font-size: 14px; }
.category-card.featured { grid-column: span 2; background: linear-gradient(145deg, var(--brand-deep), var(--brand)); border-color: transparent; color: #fff; }
.category-card.featured h3, .category-card.featured p, .category-card.featured .text-link { color: #fff; }
.category-card.featured p { color: rgba(255,255,255,.83); max-width: 70%; }
.category-card.wide { grid-column: span 2; background: var(--brand-soft); }

.feature-band { background: var(--brand-soft); }
.feature-panel { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 60px; padding: 50px; border: 1px solid #d4e5ff; border-radius: var(--radius-lg); background: rgba(255,255,255,.72); }
.feature-image { min-height: 450px; display: flex; align-items: center; justify-content: center; border-radius: 24px; background: linear-gradient(145deg, #fff, #e4efff); overflow: hidden; }
.feature-image img { max-height: 420px; object-fit: contain; filter: drop-shadow(0 22px 34px rgba(41,128,254,.15)); }
.check-list { display: grid; gap: 12px; margin: 24px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 34px; color: var(--text); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 23px; height: 23px; display: grid; place-items: center; border-radius: 50%; background: var(--brand-soft); color: var(--brand-deep); font-size: 13px; font-weight: 900; }

.split-stories { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.story-panel { min-height: 410px; padding: 38px; border-radius: var(--radius-lg); overflow: hidden; }
.story-panel.light { border: 1px solid var(--line); background: #fff; }
.story-panel.soft { background: linear-gradient(145deg, #F2F7FF, #E5F0FF); }
.story-panel.dark { background: linear-gradient(145deg, var(--footer), #174a88); color: #fff; }
.story-panel.dark h2, .story-panel.dark h3 { color: #fff; }
.story-panel.dark p, .story-panel.dark li { color: rgba(255,255,255,.78); }
.story-panel h3 { margin-bottom: 12px; color: var(--ink); font-size: 29px; line-height: 1.25; }
.story-panel p { color: var(--muted); }
.mini-list { margin: 22px 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.mini-list li { padding: 13px 15px; border-radius: 14px; background: rgba(255,255,255,.72); color: var(--text); }
.story-panel.dark .mini-list li { background: rgba(255,255,255,.08); }

.dapp-layout { display: grid; grid-template-columns: 1.12fr .88fr; gap: 22px; align-items: stretch; }
.dapp-main, .auth-panel { padding: 42px; border-radius: var(--radius-lg); }
.dapp-main { display: grid; grid-template-columns: 1fr .75fr; align-items: center; gap: 26px; background: var(--ice); border: 1px solid var(--line); }
.dapp-main img { max-height: 350px; object-fit: contain; }
.auth-panel { background: linear-gradient(145deg, #EAF3FF, #fff); border: 1px solid #d4e6ff; }
.auth-steps { counter-reset: auth; display: grid; gap: 12px; margin-top: 24px; }
.auth-steps div { counter-increment: auth; position: relative; padding: 14px 14px 14px 52px; border-radius: 14px; background: #fff; box-shadow: 0 7px 20px rgba(40,88,150,.06); }
.auth-steps div::before { content: counter(auth); position: absolute; left: 14px; top: 14px; width: 26px; height: 26px; display: grid; place-items: center; border-radius: 8px; background: var(--brand); color: #fff; font-size: 12px; font-weight: 900; }

.security-zone { background: linear-gradient(135deg, var(--footer), #143d71 58%, #1767D6); color: #fff; }
.security-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 50px; align-items: start; }
.security-grid h2 { color: #fff; }
.security-grid p { color: rgba(255,255,255,.76); }
.security-points { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.security-point { padding: 18px; border: 1px solid rgba(255,255,255,.13); border-radius: 17px; background: rgba(255,255,255,.07); }
.security-point b { display: block; margin-bottom: 5px; color: #fff; }
.security-point span { color: rgba(255,255,255,.67); font-size: 13px; }
.alert-box { margin-top: 28px; padding: 18px 20px; border-left: 4px solid #8bc0ff; border-radius: 0 14px 14px 0; background: rgba(255,255,255,.1); color: #fff; }

.hardware-grid, .swap-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 58px; }
.hardware-art, .swap-art { min-height: 430px; display: flex; align-items: center; justify-content: center; padding: 30px; border-radius: var(--radius-lg); background: var(--ice); border: 1px solid var(--line); }
.hardware-art img, .swap-art img { max-height: 390px; object-fit: contain; }
.swap-checks { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 22px; }
.swap-checks span { padding: 12px 13px; border: 1px solid var(--line); border-radius: 13px; background: #fff; color: var(--ink); font-size: 14px; font-weight: 700; }

.process-track { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.process-track::before { content: ""; position: absolute; left: 4%; right: 4%; top: 24px; height: 2px; background: linear-gradient(90deg, var(--brand), #a7caff); }
.process-step { position: relative; z-index: 1; padding-top: 0; }
.process-number { width: 48px; height: 48px; display: grid; place-items: center; margin-bottom: 18px; border: 7px solid #fff; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 900; box-shadow: 0 0 0 1px var(--line); }
.process-step h3 { margin-bottom: 8px; color: var(--ink); font-size: 17px; }
.process-step p { margin-bottom: 0; color: var(--muted); font-size: 13px; }

.eco-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.eco-card { min-height: 365px; padding: 38px; border-radius: var(--radius-lg); }
.eco-card:first-child { background: var(--brand-soft); border: 1px solid #d2e4ff; }
.eco-card:last-child { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-soft); }
.eco-card h3 { color: var(--ink); font-size: 30px; }

.notice-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.notice-item { display: grid; grid-template-columns: 140px 1fr auto; align-items: center; gap: 22px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.notice-date { color: var(--brand-deep); font-weight: 900; }
.notice-item h3 { margin-bottom: 4px; color: var(--ink); font-size: 18px; }
.notice-item p { margin: 0; color: var(--muted); font-size: 14px; }

.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.review-card { padding: 26px; border: 1px solid var(--line); border-radius: 20px; background: #fff; box-shadow: 0 8px 24px rgba(40,88,150,.05); }
.review-card::before { content: "“"; display: block; color: var(--brand); font-size: 42px; line-height: 1; font-weight: 900; }
.review-card p { margin: 8px 0 0; color: var(--text); }
.review-card span { display: block; margin-top: 15px; color: var(--muted); font-size: 13px; }

.faq-list { max-width: 900px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button { width: 100%; min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 4px; border: 0; background: transparent; color: var(--ink); text-align: left; font-weight: 800; cursor: pointer; }
.faq-item button::after { content: "+"; flex: 0 0 auto; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: var(--brand-soft); color: var(--brand); font-size: 21px; }
.faq-item.is-open button::after { content: "−"; }
.faq-answer { padding: 0 52px 24px 4px; color: var(--muted); }
.faq-answer p { margin: 0; }

.download-cta { padding: 64px; border-radius: 32px; background: radial-gradient(circle at 15% 25%, rgba(255,255,255,.2), transparent 25%), linear-gradient(135deg, var(--brand), var(--brand-deep)); color: #fff; text-align: center; }
.download-cta h2 { margin-bottom: 14px; color: #fff; font-size: clamp(34px, 5vw, 54px); }
.download-cta p { max-width: 720px; margin: 0 auto; color: rgba(255,255,255,.82); }
.download-cta .download-btn { margin-top: 24px; background: #fff; color: var(--brand-deep); box-shadow: none; }

.inner-hero { padding: 76px 0 68px; background: radial-gradient(circle at 82% 30%, rgba(41,128,254,.17), transparent 25%), linear-gradient(180deg, #F7FAFF, #fff); }
.inner-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.inner-hero h1 { margin-bottom: 18px; color: var(--ink); font-size: clamp(42px, 6vw, 68px); line-height: 1.08; letter-spacing: -.05em; }
.inner-hero p { max-width: 720px; color: var(--muted); font-size: 18px; }
.inner-hero-card { padding: 30px; border: 1px solid var(--line); border-radius: 26px; background: rgba(255,255,255,.86); box-shadow: var(--shadow-soft); }
.inner-hero-card h2 { color: var(--ink); font-size: 22px; }
.hero-stat-list { display: grid; gap: 10px; margin-top: 20px; }
.hero-stat-list div { padding: 13px 15px; border-radius: 13px; background: var(--ice); color: var(--text); font-weight: 700; }
.inner-section { padding: 82px 0; }
.inner-section.alt { background: var(--ice); }
.inner-section.blue { background: var(--brand-soft); }
.inner-copy { max-width: 780px; }
.inner-copy p { color: var(--muted); }
.content-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.content-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.info-card { padding: 28px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.info-card h3 { margin-bottom: 10px; color: var(--ink); font-size: 21px; }
.info-card p { margin: 0; color: var(--muted); }
.info-card.accent { background: var(--brand-soft); border-color: #cfe1ff; }
.number-card { position: relative; padding-top: 68px; }
.number-card .number { position: absolute; left: 28px; top: 20px; color: var(--brand); font-size: 28px; font-weight: 900; }
.topic-list { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.topic-list li { padding: 17px 18px; border: 1px solid var(--line); border-radius: 15px; background: #fff; }
.topic-list li b { display: block; margin-bottom: 4px; color: var(--ink); }
.topic-list li span { color: var(--muted); font-size: 14px; }
.two-column-feature { display: grid; grid-template-columns: .85fr 1.15fr; align-items: center; gap: 54px; }
.two-column-feature.reverse { grid-template-columns: 1.15fr .85fr; }
.two-column-feature.reverse .feature-media { order: 2; }
.feature-media { min-height: 400px; display: flex; align-items: center; justify-content: center; padding: 28px; border-radius: 26px; background: linear-gradient(145deg, #fff, #e8f1ff); border: 1px solid var(--line); }
.feature-media img { max-height: 370px; object-fit: contain; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.info-table { width: 100%; min-width: 700px; border-collapse: collapse; }
.info-table th, .info-table td { padding: 16px 18px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.info-table th { background: var(--brand-soft); color: var(--ink); }
.info-table td { color: var(--text); }
.info-table tr:last-child td { border-bottom: 0; }
.callout { padding: 24px 26px; border: 1px solid #c9deff; border-radius: 18px; background: var(--brand-soft); }
.callout strong { display: block; margin-bottom: 7px; color: var(--ink); }
.callout p { margin: 0; color: var(--text); }
.warning-callout { padding: 25px; border-left: 5px solid var(--brand); border-radius: 0 18px 18px 0; background: #eef5ff; }
.warning-callout h3 { color: var(--ink); }
.warning-callout p:last-child { margin-bottom: 0; }
.step-stack { counter-reset: steps; display: grid; gap: 14px; }
.step-stack article { counter-increment: steps; position: relative; padding: 24px 24px 24px 76px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.step-stack article::before { content: counter(steps); position: absolute; left: 22px; top: 22px; width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; background: var(--brand); color: #fff; font-weight: 900; }
.step-stack h3 { color: var(--ink); margin-bottom: 6px; }
.step-stack p { margin: 0; color: var(--muted); }
.resource-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.resource-links a { min-height: 44px; display: inline-flex; align-items: center; padding: 0 15px; border: 1px solid var(--line); border-radius: 12px; background: #fff; color: var(--brand-deep); font-weight: 800; }

.site-footer { background: var(--footer); color: rgba(255,255,255,.72); }
.footer-main { width: var(--container); margin: 0 auto; display: grid; grid-template-columns: 1.05fr 1.95fr; gap: 70px; padding: 68px 0 44px; }
.footer-brand p { max-width: 410px; margin: 20px 0; }
.footer-brand .brand img { filter: brightness(0) invert(1); }
.footer-download { box-shadow: none; }
.footer-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; }
.footer-links h2 { margin-bottom: 14px; color: #fff; font-size: 15px; }
.footer-links a { display: block; padding: 5px 0; color: rgba(255,255,255,.68); font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-notice { border-top: 1px solid rgba(255,255,255,.1); border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-notice p { width: var(--container); margin: 0 auto; padding: 18px 0; color: rgba(255,255,255,.82); font-size: 13px; }
.footer-bottom { width: var(--container); margin: 0 auto; display: flex; justify-content: space-between; gap: 20px; padding: 20px 0; color: rgba(255,255,255,.5); font-size: 13px; }

@media (max-width: 1120px) {
  .desktop-nav { display: none; }
  .header-shell { min-height: 70px; }
  .header-actions { margin-left: auto; }
  .hero-grid { grid-template-columns: 1fr 420px; gap: 24px; }
  .hero-copy h1 { font-size: 56px; }
  .process-track { grid-template-columns: repeat(3, 1fr); row-gap: 35px; }
  .process-track::before { display: none; }
  .footer-main { grid-template-columns: 1fr; gap: 40px; }
}

@media (min-width: 1121px) {
  .menu-toggle { display: inline-flex; }
}

@media (max-width: 900px) {
  :root { --container: min(100% - 30px, 760px); }
  .section-pad { padding: 76px 0; }
  .hero { padding-top: 58px; }
  .hero-grid, .inner-hero-grid, .feature-panel, .dapp-layout, .hardware-grid, .swap-grid, .security-grid, .two-column-feature, .two-column-feature.reverse { grid-template-columns: 1fr; }
  .hero-copy h1 { font-size: clamp(42px, 10vw, 62px); }
  .hero-visual { min-height: 470px; }
  .capability-strip { grid-template-columns: 1fr 1fr; }
  .capability-item:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .capability-item:nth-child(4) { border-top: 1px solid var(--line); }
  .category-mosaic { grid-template-columns: 1fr 1fr; }
  .category-card.featured, .category-card.wide { grid-column: span 2; }
  .feature-panel { padding: 30px; gap: 32px; }
  .dapp-main { grid-template-columns: 1fr; }
  .security-grid { gap: 34px; }
  .review-grid, .content-grid-3 { grid-template-columns: 1fr 1fr; }
  .notice-item { grid-template-columns: 120px 1fr; }
  .notice-item .text-link { grid-column: 2; margin-top: 0; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .two-column-feature.reverse .feature-media { order: initial; }
}

@media (max-width: 620px) {
  :root { --container: calc(100% - 24px); }
  .header-shell { width: calc(100% - 20px); gap: 8px; }
  .brand img { max-width: 126px; }
  .header-download { min-height: 42px; padding: 0 14px; font-size: 13px; }
  .menu-toggle { width: 42px; height: 42px; border-radius: 12px; }
  .section-pad { padding: 64px 0; }
  .section-head h2, .inner-section h2 { font-size: 32px; }
  .hero { padding: 42px 0 36px; }
  .hero-copy h1 { font-size: 42px; }
  .hero-copy .lead { font-size: 17px; }
  .button-row { flex-direction: column; align-items: stretch; }
  .button-row > * { width: 100%; }
  .hero-visual { min-height: 410px; margin-top: 10px; }
  .hero-orbit { width: 320px; height: 320px; }
  .hero-product { max-height: 360px; }
  .float-note { max-width: 145px; padding: 10px 11px; font-size: 11px; }
  .float-note.one { top: 24px; left: 0; }
  .float-note.two { top: 170px; right: 0; }
  .float-note.three { bottom: 25px; left: 5px; }
  .capability-strip { grid-template-columns: 1fr; transform: translateY(10px); }
  .capability-item + .capability-item { border-left: 0; border-top: 1px solid var(--line); }
  .category-mosaic, .split-stories, .eco-grid, .review-grid, .content-grid-2, .content-grid-3 { grid-template-columns: 1fr; }
  .category-card.featured, .category-card.wide { grid-column: auto; }
  .category-card.featured p { max-width: 100%; }
  .feature-panel, .dapp-main, .auth-panel, .story-panel, .eco-card { padding: 25px; }
  .feature-image, .hardware-art, .swap-art, .feature-media { min-height: 310px; }
  .security-points, .swap-checks { grid-template-columns: 1fr; }
  .process-track { grid-template-columns: 1fr; gap: 20px; }
  .process-step { display: grid; grid-template-columns: 48px 1fr; column-gap: 15px; }
  .process-number { grid-row: 1 / span 3; margin: 0; }
  .notice-item { grid-template-columns: 1fr; gap: 6px; padding: 18px 0; }
  .notice-item .text-link { grid-column: auto; }
  .download-cta { padding: 42px 22px; border-radius: 24px; }
  .inner-hero { padding: 54px 0 48px; }
  .inner-hero h1 { font-size: 42px; }
  .inner-section { padding: 64px 0; }
  .step-stack article { padding: 70px 20px 22px; }
  .step-stack article::before { left: 20px; top: 18px; }
  .footer-main { padding: 54px 0 34px; }
  .footer-links { grid-template-columns: 1fr 1fr; gap: 30px 16px; }
  .footer-bottom { flex-direction: column; gap: 5px; }
  .faq-answer { padding-right: 8px; }
}

.blue { background: var(--brand-soft); }