:root {
  --brand: #2980FE;
  --brand-dark: #1767D6;
  --brand-soft: #EAF3FF;
  --blue-gray: #F5F8FD;
  --gray: #F7F9FC;
  --white: #FFFFFF;
  --text: #172033;
  --body: #465266;
  --muted: #718096;
  --line: #DCE6F2;
  --footer: #10233F;
  --shadow: 0 18px 50px rgba(29, 91, 166, .10);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 16px;
  --container: 1200px;
}

* { 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", "Microsoft JhengHei", Arial, sans-serif; line-height: 1.75; overflow-x: hidden; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 2000; background: var(--footer); color: #fff; padding: 10px 16px; border-radius: 10px; }
.skip-link:focus { top: 10px; }

.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.92); border-bottom: 1px solid rgba(220,230,242,.85); backdrop-filter: blur(16px); }
.header-inner { width: min(calc(100% - 40px), var(--container)); min-height: 76px; margin: 0 auto; display: flex; align-items: center; gap: 26px; }
.brand { flex: 0 0 auto; display: inline-flex; align-items: center; min-height: 44px; }
.brand img { max-height: 44px; width: auto; }
.desktop-nav { display: flex; align-items: stretch; justify-content: center; gap: 2px; flex: 1; min-width: 0; }
.nav-link { min-height: 76px; padding: 0 11px; display: inline-flex; align-items: center; white-space: nowrap; font-weight: 700; font-size: 14px; color: #354158; position: relative; }
.nav-link::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 0; height: 3px; border-radius: 3px 3px 0 0; background: var(--brand); transform: scaleX(0); transition: transform .2s ease; }
.nav-link:hover, .nav-link:focus, .nav-link.is-active { color: var(--brand-dark); }
.nav-link:hover::after, .nav-link:focus::after, .nav-link.is-active::after { transform: scaleX(1); }
.nav-group { position: relative; display: flex; }
.mega-menu { position: absolute; top: calc(100% - 2px); left: 50%; transform: translate(-50%, 12px); width: 690px; padding: 20px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.98); box-shadow: var(--shadow); display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 10px; opacity: 0; visibility: hidden; pointer-events: none; transition: .2s ease; }
.mega-menu-right { left: auto; right: -110px; transform: translate(0, 12px); }
.nav-group:hover .mega-menu, .nav-group:focus-within .mega-menu { opacity: 1; visibility: visible; pointer-events: auto; transform: translate(-50%, 0); }
.nav-group:hover .mega-menu-right, .nav-group:focus-within .mega-menu-right { transform: translate(0, 0); }
.mega-menu a, .mega-intro { min-height: 78px; padding: 13px 14px; border-radius: 14px; display: flex; flex-direction: column; justify-content: center; }
.mega-menu a:hover, .mega-menu a:focus { background: var(--brand-soft); color: var(--brand-dark); }
.mega-menu strong { font-size: 15px; }
.mega-menu span { font-size: 12px; line-height: 1.55; color: var(--muted); }
.mega-intro { grid-row: span 2; background: linear-gradient(145deg, var(--brand), var(--brand-dark)); color: #fff; }
.mega-intro span { color: rgba(255,255,255,.82); margin-top: 6px; }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.download-btn { min-height: 46px; padding: 0 22px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--brand), var(--brand-dark)); color: #fff; font-weight: 800; box-shadow: 0 10px 24px rgba(41,128,254,.22); transition: transform .18s ease, box-shadow .18s ease; }
.download-btn:hover, .download-btn:focus { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(41,128,254,.30); }
.menu-toggle { width: 46px; height: 46px; padding: 0; border: 1px solid var(--line); border-radius: 14px; background: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; cursor: pointer; }
.menu-toggle span { width: 20px; height: 2px; border-radius: 2px; background: var(--text); }
.menu-overlay { position: fixed; inset: 0; z-index: 1090; background: rgba(16,35,63,.46); opacity: 0; transition: opacity .18s ease; }
.menu-overlay.is-visible { opacity: 1; }
.mobile-menu { position: fixed; top: 0; right: 0; bottom: 0; z-index: 1100; width: min(440px, 92vw); padding: 18px; overflow-y: auto; background: #fff; transform: translateX(105%); transition: transform .22s ease; box-shadow: -24px 0 60px rgba(16,35,63,.18); }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 15px; border-bottom: 1px solid var(--line); }
.menu-close { width: 46px; height: 46px; border: 0; border-radius: 14px; background: var(--gray); font-size: 30px; line-height: 1; cursor: pointer; }
.mobile-home, .mobile-nav-group > button { width: 100%; min-height: 54px; padding: 0 12px; border: 0; border-bottom: 1px solid var(--line); background: transparent; display: flex; align-items: center; justify-content: space-between; text-align: left; font-weight: 800; cursor: pointer; }
.mobile-subnav { display: none; padding: 8px 0 10px 14px; }
.mobile-subnav.is-open { display: grid; }
.mobile-subnav a { min-height: 44px; display: flex; align-items: center; padding: 0 12px; border-radius: 12px; color: var(--body); }
.mobile-subnav a:hover, .mobile-subnav a:focus { background: var(--brand-soft); color: var(--brand-dark); }
.mobile-menu-download { width: 100%; margin-top: 18px; }

main { overflow: clip; }
.container { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; }
.section { padding: 90px 0; }
.section-sm { padding: 58px 0; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 12px; color: var(--brand-dark); font-size: 13px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--brand); }
h1, h2, h3 { margin: 0 0 16px; line-height: 1.22; letter-spacing: -.02em; }
h1 { font-size: clamp(42px, 6vw, 74px); }
h2 { font-size: clamp(30px, 4vw, 48px); }
h3 { font-size: clamp(20px, 2.4vw, 27px); }
p { margin: 0 0 18px; color: var(--body); }
.lead { font-size: clamp(18px, 2vw, 22px); color: #354158; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--brand-dark); 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; align-items: center; gap: 12px; margin-top: 26px; }
.btn-secondary { min-height: 46px; padding: 0 20px; border: 1px solid var(--line); border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; background: #fff; color: var(--brand-dark); font-weight: 800; }
.btn-secondary:hover, .btn-secondary:focus { border-color: var(--brand); background: var(--brand-soft); }
.tag-list { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.tag { padding: 7px 12px; border: 1px solid rgba(41,128,254,.18); border-radius: 999px; background: rgba(255,255,255,.75); color: var(--brand-dark); font-size: 13px; font-weight: 800; }

.hero { position: relative; padding: 76px 0 58px; background: radial-gradient(circle at 86% 14%, rgba(41,128,254,.18), transparent 34%), linear-gradient(180deg, #fff, var(--blue-gray)); }
.hero::before { content: ""; position: absolute; width: 500px; height: 500px; left: -330px; top: 10%; border: 1px solid rgba(41,128,254,.10); border-radius: 50%; }
.hero-grid { display: grid; grid-template-columns: 1.12fr .88fr; align-items: center; gap: 56px; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy p { max-width: 680px; }
.hero-visual { position: relative; min-height: 560px; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; width: 78%; aspect-ratio: 1; border-radius: 50%; background: linear-gradient(145deg, rgba(41,128,254,.18), rgba(255,255,255,.4)); box-shadow: inset 0 0 0 1px rgba(41,128,254,.12); }
.hero-visual img { position: relative; z-index: 1; max-height: 520px; object-fit: contain; filter: drop-shadow(0 30px 34px rgba(23,103,214,.18)); }
.float-note { position: absolute; z-index: 2; min-width: 180px; padding: 14px 16px; border: 1px solid rgba(220,230,242,.9); border-radius: 16px; background: rgba(255,255,255,.88); box-shadow: var(--shadow); backdrop-filter: blur(10px); font-size: 13px; font-weight: 800; }
.float-note span { display: block; color: var(--muted); font-size: 11px; font-weight: 600; }
.float-note.one { top: 12%; left: -2%; }
.float-note.two { right: -3%; top: 43%; }
.float-note.three { left: 4%; bottom: 8%; }

.capability-strip { position: relative; margin-top: -1px; background: var(--footer); color: #fff; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.capability { padding: 30px 28px; border-right: 1px solid rgba(255,255,255,.12); }
.capability:last-child { border-right: 0; }
.capability h2 { font-size: 18px; margin-bottom: 8px; }
.capability p { color: rgba(255,255,255,.72); font-size: 14px; margin: 0; }

.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.category-card { position: relative; min-height: 220px; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; overflow: hidden; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.category-card::before { content: ""; position: absolute; width: 120px; height: 120px; right: -52px; bottom: -52px; border-radius: 50%; background: var(--brand-soft); }
.category-card:hover { transform: translateY(-4px); border-color: rgba(41,128,254,.38); box-shadow: var(--shadow); }
.category-card.featured { grid-column: span 2; background: linear-gradient(145deg, var(--brand), var(--brand-dark)); color: #fff; }
.category-card.featured p, .category-card.featured .text-link { color: rgba(255,255,255,.86); }
.category-card.wide { grid-column: span 2; min-height: 190px; }
.category-card h3 { position: relative; z-index: 1; }
.category-card p { position: relative; z-index: 1; font-size: 15px; }
.category-card .text-link { position: relative; z-index: 1; }

.feature-panel { padding: 46px; border-radius: var(--radius-lg); background: var(--brand-soft); }
.feature-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 54px; align-items: center; }
.feature-image { min-height: 460px; padding: 24px; display: grid; place-items: center; border-radius: 24px; background: linear-gradient(145deg, rgba(255,255,255,.86), rgba(255,255,255,.52)); border: 1px solid rgba(255,255,255,.9); }
.feature-image img { max-height: 430px; object-fit: contain; }
.check-list { display: grid; gap: 12px; margin: 24px 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 12px 14px 12px 44px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.82); color: var(--body); }
.check-list li::before { content: "✓"; position: absolute; left: 14px; top: 11px; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; background: var(--brand); color: #fff; font-size: 12px; font-weight: 900; }

.offset-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: start; }
.offset-card { padding: 36px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; box-shadow: 0 12px 34px rgba(29,91,166,.06); }
.offset-card:nth-child(2) { margin-top: 74px; background: var(--blue-gray); }
.icon-list { display: grid; gap: 12px; margin: 24px 0 0; padding: 0; list-style: none; }
.icon-list li { padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--body); }
.icon-list li:last-child { border-bottom: 0; }

.dual-feature { display: grid; grid-template-columns: 1.16fr .84fr; gap: 20px; }
.dual-card { min-height: 440px; padding: 42px; border-radius: var(--radius-lg); background: linear-gradient(145deg, #fff, var(--brand-soft)); border: 1px solid var(--line); display: flex; flex-direction: column; justify-content: space-between; }
.dual-card.compact { min-height: 390px; margin-top: 50px; background: #fff; }
.dual-card img { max-height: 220px; margin: 20px auto 0; object-fit: contain; }

.security-band { position: relative; background: linear-gradient(120deg, var(--footer), #173C6E 62%, #1E67B8); color: #fff; }
.security-band::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 80% 20%, rgba(255,255,255,.12), transparent 28%); pointer-events: none; }
.security-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .85fr 1.15fr; gap: 56px; align-items: center; }
.security-band p, .security-band li { color: rgba(255,255,255,.78); }
.security-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 0; list-style: none; }
.security-list li { padding: 18px; border-radius: 15px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.10); }

.media-section { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.media-section.reverse .media-visual { order: 2; }
.media-visual { min-height: 430px; padding: 30px; border-radius: var(--radius-lg); background: var(--blue-gray); display: grid; place-items: center; }
.media-visual img { max-height: 390px; object-fit: contain; }

.swap-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 28px; align-items: stretch; }
.swap-intro, .swap-checks { padding: 38px; border-radius: var(--radius-lg); }
.swap-intro { background: linear-gradient(145deg, var(--brand-soft), #fff); border: 1px solid var(--line); }
.swap-intro img { max-height: 270px; margin: 20px auto 0; object-fit: contain; }
.swap-checks { background: var(--footer); color: #fff; }
.swap-checks p { color: rgba(255,255,255,.75); }
.swap-checks .check-list { grid-template-columns: 1fr 1fr; }
.swap-checks .check-list li { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.12); color: rgba(255,255,255,.84); }

.timeline { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; counter-reset: steps; }
.step { position: relative; padding: 0 18px; counter-increment: steps; }
.step::before { content: counter(steps, decimal-leading-zero); width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; background: var(--brand); color: #fff; font-weight: 900; box-shadow: 0 10px 22px rgba(41,128,254,.22); }
.step::after { content: ""; position: absolute; left: 66px; right: -2px; top: 23px; height: 1px; background: var(--line); }
.step:last-child::after { display: none; }
.step h3 { margin-top: 18px; font-size: 18px; }
.step p { font-size: 14px; }
.step a { color: var(--brand-dark); font-size: 14px; font-weight: 800; }

.ecosystem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.eco-card { padding: 38px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; }
.eco-card:first-child { background: var(--brand-soft); }

.notice-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.notice { display: grid; grid-template-columns: 130px 1fr auto; gap: 20px; align-items: center; min-height: 108px; border-bottom: 1px solid var(--line); }
.notice time { color: var(--muted); font-size: 13px; }
.notice h3 { margin: 0 0 6px; font-size: 19px; }
.notice p { margin: 0; font-size: 14px; }

.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.review { padding: 26px; border-radius: var(--radius-md); background: var(--gray); border: 1px solid transparent; }
.review:nth-child(even) { background: #fff; border-color: var(--line); }
.review p { margin: 0; }
.review strong { display: block; margin-top: 18px; color: var(--brand-dark); font-size: 13px; }

.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item > button { width: 100%; min-height: 72px; padding: 14px 4px; border: 0; background: transparent; display: flex; justify-content: space-between; align-items: center; gap: 20px; text-align: left; font-weight: 900; cursor: pointer; }
.faq-item > button::after { content: "+"; width: 34px; height: 34px; flex: 0 0 auto; border-radius: 50%; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand-dark); }
.faq-item > button[aria-expanded="true"]::after { content: "−"; }
.faq-answer { padding: 0 54px 22px 4px; }
.faq-answer p { margin: 0; }

.download-cta { padding: 58px; border-radius: 30px; background: radial-gradient(circle at 88% 20%, rgba(255,255,255,.25), transparent 30%), linear-gradient(135deg, var(--brand), var(--brand-dark)); color: #fff; text-align: center; }
.download-cta p { max-width: 700px; margin: 0 auto 24px; color: rgba(255,255,255,.82); }
.download-cta .download-btn { background: #fff; color: var(--brand-dark); box-shadow: 0 14px 32px rgba(16,35,63,.18); }

.page-hero { padding: 82px 0 66px; background: radial-gradient(circle at 80% 10%, rgba(41,128,254,.15), transparent 34%), var(--blue-gray); }
.page-hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 46px; align-items: center; }
.page-hero h1 { font-size: clamp(38px, 5vw, 64px); }
.page-hero-visual { min-height: 340px; padding: 28px; border-radius: var(--radius-lg); background: rgba(255,255,255,.72); border: 1px solid rgba(255,255,255,.9); display: grid; place-items: center; }
.page-hero-visual img { max-height: 330px; object-fit: contain; }
.content-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.content-card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; }
.content-card.highlight { background: var(--brand-soft); border-color: transparent; }
.content-card p:last-child { margin-bottom: 0; }
.prose-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; }
.prose-block { padding: 34px; border-radius: var(--radius-md); background: var(--gray); }
.prose-block:nth-child(even) { background: #fff; border: 1px solid var(--line); }
.number-list { list-style: none; padding: 0; margin: 0; counter-reset: numbered; display: grid; gap: 14px; }
.number-list li { counter-increment: numbered; position: relative; padding: 18px 18px 18px 68px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.number-list li::before { content: counter(numbered); position: absolute; left: 18px; top: 17px; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--brand); color: #fff; font-weight: 900; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; }
table { width: 100%; border-collapse: collapse; min-width: 680px; background: #fff; }
th, td { padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--blue-gray); color: var(--text); }
tr:last-child td { border-bottom: 0; }
.callout { padding: 28px; border-left: 5px solid var(--brand); border-radius: 0 18px 18px 0; background: var(--brand-soft); }
.callout.dark { border-left-color: #fff; background: var(--footer); color: #fff; }
.callout.dark p { color: rgba(255,255,255,.78); }

.site-footer { padding: 70px 0 22px; background: var(--footer); color: #fff; }
.footer-grid { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; display: grid; grid-template-columns: 1.4fr repeat(3, .8fr); gap: 46px; }
.brand-footer img { filter: brightness(0) invert(1); }
.footer-brand p { max-width: 360px; margin-top: 18px; color: rgba(255,255,255,.68); }
.site-footer h2 { font-size: 16px; margin-bottom: 16px; }
.site-footer a { display: block; min-height: 34px; color: rgba(255,255,255,.72); font-size: 14px; }
.site-footer a:hover, .site-footer a:focus { color: #fff; }
.footer-bottom { width: min(calc(100% - 40px), var(--container)); margin: 46px auto 0; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 20px; color: rgba(255,255,255,.54); font-size: 13px; }
.footer-bottom div { display: flex; gap: 20px; }
.footer-bottom a { min-height: auto; }

@media (max-width: 1100px) {
  .desktop-nav { display: none; }
  .header-inner { min-height: 70px; }
  .hero-grid, .page-hero-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .hero-visual { min-height: 480px; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .category-card.featured, .category-card.wide { grid-column: span 1; }
  .timeline { grid-template-columns: repeat(3, 1fr); gap: 30px 0; }
  .step:nth-child(3)::after, .step:last-child::after { display: none; }
}

@media (max-width: 820px) {
  .section { padding: 68px 0; }
  .hero { padding-top: 54px; }
  .hero-grid, .page-hero-grid, .feature-grid, .security-grid, .media-section, .swap-grid, .prose-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 470px; }
  .hero-visual img { max-height: 420px; }
  .capability-grid { grid-template-columns: 1fr 1fr; }
  .capability:nth-child(2) { border-right: 0; }
  .capability:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.12); }
  .offset-grid, .dual-feature, .ecosystem-grid { grid-template-columns: 1fr; }
  .offset-card:nth-child(2), .dual-card.compact { margin-top: 0; }
  .media-section.reverse .media-visual { order: initial; }
  .timeline { grid-template-columns: 1fr 1fr; gap: 30px 0; }
  .step:nth-child(2n)::after { display: none; }
  .review-grid, .content-grid { grid-template-columns: 1fr 1fr; }
  .notice { grid-template-columns: 110px 1fr; }
  .notice .text-link { grid-column: 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 580px) {
  .container, .header-inner, .footer-grid, .footer-bottom { width: min(calc(100% - 28px), var(--container)); }
  .header-inner { gap: 10px; }
  .brand img { max-width: 132px; max-height: 38px; }
  .header-download { min-height: 42px; padding: 0 14px; font-size: 13px; }
  .menu-toggle { width: 42px; height: 42px; }
  h1 { font-size: 40px; }
  .hero-visual { min-height: 410px; }
  .hero-visual img { max-height: 350px; }
  .float-note { position: static; min-width: 0; width: 100%; }
  .hero-visual { grid-template-columns: 1fr 1fr; gap: 8px; align-content: center; }
  .hero-visual::before { width: 100%; }
  .hero-visual img { grid-column: 1 / -1; }
  .float-note.three { grid-column: 1 / -1; }
  .capability-grid, .category-grid, .review-grid, .content-grid, .security-list, .swap-checks .check-list, .footer-grid { grid-template-columns: 1fr; }
  .capability { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .feature-panel, .offset-card, .dual-card, .swap-intro, .swap-checks, .eco-card, .download-cta { padding: 28px 22px; }
  .feature-image, .media-visual, .page-hero-visual { min-height: 320px; padding: 18px; }
  .timeline { grid-template-columns: 1fr; }
  .step { padding: 0 0 0 66px; min-height: 150px; }
  .step::before { position: absolute; left: 0; top: 0; }
  .step::after { display: block !important; left: 23px; top: 50px; bottom: 0; right: auto; width: 1px; height: auto; }
  .step:last-child::after { display: none !important; }
  .step h3 { margin-top: 0; }
  .notice { grid-template-columns: 1fr; gap: 6px; padding: 20px 0; }
  .notice .text-link { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
  .page-hero { padding-top: 56px; }
}