: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;
  --radius-sm: 16px;
  --radius-md: 22px;
  --radius-lg: 28px;
  --shadow: 0 18px 50px rgba(23, 103, 214, .10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; overflow-x: hidden; color: var(--ink); background: var(--white); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft JhengHei", "PingFang TC", Arial, sans-serif; line-height: 1.72; }
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 { cursor: pointer; }
p { color: var(--text); }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 9999; padding: 10px 14px; border-radius: 10px; background: var(--ink); color: var(--white); }
.skip-link:focus { top: 12px; }

.site-header { position: sticky; top: 0; z-index: 1000; border-bottom: 1px solid rgba(220, 230, 242, .85); background: rgba(255,255,255,.92); backdrop-filter: blur(18px); }
.header-inner { width: min(1440px, calc(100% - 36px)); min-height: 76px; margin: 0 auto; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand img { width: 154px; max-height: 44px; object-fit: contain; }
.desktop-nav { display: flex; justify-content: center; align-items: center; gap: 4px; white-space: nowrap; }
.desktop-nav > a, .desktop-nav > .nav-group > a { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 11px; border-radius: 12px; color: #33415A; font-size: 14px; font-weight: 700; }
.desktop-nav a:hover, .desktop-nav a:focus-visible, .desktop-nav .is-active { color: var(--brand-deep); background: var(--brand-soft); outline: none; }
.nav-group { position: relative; }
.nav-group > a::after { content: ""; width: 7px; height: 7px; margin-left: 7px; border-right: 1.8px solid currentColor; border-bottom: 1.8px solid currentColor; transform: rotate(45deg) translateY(-2px); }
.mega-menu { position: absolute; left: 50%; top: calc(100% + 10px); width: 620px; padding: 18px; display: grid; grid-template-columns: 1.1fr 1fr 1fr; gap: 8px; opacity: 0; visibility: hidden; transform: translate(-50%, 8px); transition: .18s ease; border: 1px solid var(--line); border-radius: 24px; background: rgba(255,255,255,.98); box-shadow: var(--shadow); }
.nav-group:hover .mega-menu, .nav-group:focus-within .mega-menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.mega-menu > div { grid-row: span 2; padding: 18px; border-radius: 18px; background: linear-gradient(145deg, var(--brand-soft), var(--ice)); }
.mega-menu strong { color: var(--brand-deep); font-size: 18px; }
.mega-menu p { margin: 7px 0 0; font-size: 13px; line-height: 1.55; }
.mega-menu a { display: flex; flex-direction: column; justify-content: center; min-height: 70px; padding: 12px 14px; border-radius: 16px; }
.mega-menu a:hover, .mega-menu a:focus-visible { background: var(--ice); }
.mega-menu span { font-weight: 800; }
.mega-menu small { margin-top: 2px; color: var(--muted); white-space: normal; }
.header-actions { display: flex; align-items: center; gap: 10px; }
.download-btn { display: inline-flex; justify-content: center; align-items: center; min-height: 46px; padding: 10px 20px; border-radius: 14px; background: linear-gradient(135deg, var(--brand), var(--brand-deep)); color: var(--white); font-weight: 800; box-shadow: 0 10px 24px rgba(41,128,254,.23); transition: transform .18s ease, box-shadow .18s ease; white-space: nowrap; }
.download-btn:hover, .download-btn:focus-visible { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(41,128,254,.30); outline: none; }
.menu-toggle { width: 46px; height: 46px; display: inline-grid; place-content: center; gap: 5px; padding: 0; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
.menu-toggle span { width: 20px; height: 2px; border-radius: 99px; background: var(--ink); }

.menu-backdrop { position: fixed; inset: 0; z-index: 1090; background: rgba(10, 24, 44, .50); backdrop-filter: blur(4px); }
.mobile-menu { position: fixed; right: 0; top: 0; z-index: 1100; width: min(430px, 92vw); height: 100dvh; overflow-y: auto; padding: 18px; background: var(--white); box-shadow: -20px 0 60px rgba(15, 35, 63, .18); transform: translateX(105%); transition: transform .24s ease; }
.mobile-menu[aria-hidden="false"] { transform: translateX(0); }
.mobile-menu-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.menu-close { width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 14px; background: var(--ice); color: var(--ink); font-size: 28px; line-height: 1; }
.mobile-nav { display: grid; gap: 8px; padding: 16px 0 30px; }
.mobile-nav > a, .mobile-nav summary { min-height: 50px; display: flex; align-items: center; padding: 10px 14px; border-radius: 14px; font-weight: 800; }
.mobile-nav summary { justify-content: space-between; list-style: none; background: var(--ice); }
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav summary::after { content: "+"; color: var(--brand-deep); font-size: 20px; }
.mobile-nav details[open] summary::after { content: "−"; }
.mobile-nav details div { display: grid; gap: 4px; padding: 7px 0 4px 14px; }
.mobile-nav details a { min-height: 44px; display: flex; align-items: center; padding: 8px 12px; border-left: 2px solid var(--line); color: var(--text); }
.mobile-download { margin-top: 8px; color: var(--white) !important; }

main { display: block; }
.container { width: min(1200px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 92px 0; }
.section-sm { padding: 64px 0; }
.section-head { max-width: 760px; margin-bottom: 38px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 12px; color: var(--brand-deep); font-size: 13px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 22px; height: 2px; border-radius: 99px; background: var(--brand); }
h1, h2, h3 { margin: 0; line-height: 1.2; letter-spacing: -.025em; }
h1 { font-size: clamp(38px, 5.2vw, 70px); }
h2 { font-size: clamp(30px, 3.6vw, 48px); }
h3 { font-size: clamp(20px, 2vw, 28px); }
.lead { font-size: clamp(17px, 1.7vw, 21px); }
.muted { color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn-secondary, .text-link { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 18px; border-radius: 14px; font-weight: 800; }
.btn-secondary { border: 1px solid var(--line); background: var(--white); color: var(--brand-deep); }
.btn-secondary:hover, .btn-secondary:focus-visible { border-color: var(--brand); background: var(--brand-soft); outline: none; }
.text-link { min-height: 36px; padding: 6px 0; color: var(--brand-deep); }
.text-link::after { content: "→"; margin-left: 8px; }

.hero { position: relative; overflow: hidden; padding: 86px 0 76px; background: radial-gradient(circle at 80% 20%, rgba(41,128,254,.18), transparent 30%), linear-gradient(180deg, #FFFFFF 0%, #F4F8FF 100%); }
.hero::before { content: ""; position: absolute; width: 480px; height: 480px; right: -220px; top: -240px; border: 1px solid rgba(41,128,254,.18); border-radius: 50%; box-shadow: 0 0 0 50px rgba(41,128,254,.03), 0 0 0 100px rgba(41,128,254,.02); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.12fr .88fr; align-items: center; gap: 58px; }
.hero-copy p { max-width: 690px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 9px; margin: 24px 0 0; }
.hero-tags span { padding: 7px 12px; border: 1px solid #CFE2FF; border-radius: 999px; background: rgba(255,255,255,.75); color: var(--brand-deep); font-size: 13px; font-weight: 800; }
.hero-visual { position: relative; min-height: 510px; display: grid; place-items: center; }
.hero-product { max-height: 480px; width: auto; object-fit: contain; filter: drop-shadow(0 28px 35px rgba(23,103,214,.16)); }
.float-note { position: absolute; min-width: 166px; padding: 13px 15px; border: 1px solid rgba(220,230,242,.95); border-radius: 16px; background: rgba(255,255,255,.92); box-shadow: var(--shadow); font-size: 13px; font-weight: 800; }
.float-note::before { content: "✓"; display: inline-grid; place-items: center; width: 23px; height: 23px; margin-right: 8px; border-radius: 50%; background: var(--brand-soft); color: var(--brand-deep); }
.float-note.one { top: 11%; left: -3%; }
.float-note.two { right: -2%; top: 42%; }
.float-note.three { left: 5%; bottom: 5%; }

.capability-strip { position: relative; z-index: 2; margin-top: -28px; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 24px; background: var(--white); box-shadow: var(--shadow); overflow: hidden; }
.capability-item { min-height: 166px; padding: 26px; }
.capability-item + .capability-item { border-left: 1px solid var(--line); }
.capability-item h3 { font-size: 20px; }
.capability-item p { margin-bottom: 0; font-size: 14px; }

.category-mosaic { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.category-card { position: relative; min-height: 236px; display: flex; flex-direction: column; justify-content: space-between; padding: 26px; overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: var(--white); transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.category-card::after { content: ""; position: absolute; width: 130px; height: 130px; right: -50px; bottom: -55px; border-radius: 50%; background: radial-gradient(circle, rgba(41,128,254,.15), transparent 68%); }
.category-card:hover { transform: translateY(-4px); border-color: #B9D5FF; box-shadow: var(--shadow); }
.category-card.featured { grid-column: span 2; min-height: 270px; background: linear-gradient(135deg, #EAF3FF, #FFFFFF); }
.category-card.wide { grid-column: span 2; background: linear-gradient(140deg, #FFFFFF, #F5F8FD); }
.category-number { color: var(--brand); font-weight: 900; }
.category-card p { max-width: 460px; }

.feature-panel { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 64px; padding: 48px; border-radius: 30px; background: linear-gradient(135deg, #EAF3FF, #F9FBFF); }
.feature-image-wrap { min-height: 440px; display: grid; place-items: center; border-radius: 24px; background: rgba(255,255,255,.72); }
.feature-image-wrap img { max-height: 390px; width: auto; object-fit: contain; }
.check-list, .plain-list { margin: 24px 0 0; padding: 0; list-style: none; }
.check-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.check-list li, .plain-list li { position: relative; padding-left: 30px; color: var(--text); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 21px; height: 21px; display: grid; place-items: center; border-radius: 50%; background: var(--brand-soft); color: var(--brand-deep); font-size: 12px; font-weight: 900; }
.plain-list { display: grid; gap: 12px; }
.plain-list li::before { content: ""; position: absolute; left: 5px; top: .72em; width: 8px; height: 8px; border-radius: 50%; background: var(--brand); }

.split-feature { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.info-panel { padding: 38px; border-radius: 26px; border: 1px solid var(--line); background: var(--white); }
.info-panel.offset { margin-top: 64px; background: var(--ice); }
.info-panel h3 { margin-bottom: 14px; }
.info-panel .mini-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

.dapp-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; align-items: stretch; }
.visual-card, .content-card { padding: 42px; border-radius: 28px; overflow: hidden; }
.visual-card { min-height: 560px; display: grid; grid-template-columns: 1fr .9fr; align-items: center; gap: 28px; background: linear-gradient(145deg, #102F62, #1767D6); color: var(--white); }
.visual-card p, .visual-card li { color: #D9E8FF; }
.visual-card img { max-height: 340px; width: auto; margin: auto; object-fit: contain; }
.content-card { align-self: end; min-height: 420px; background: var(--brand-soft); }

.security-band { position: relative; overflow: hidden; background: linear-gradient(135deg, #102F62 0%, #1767D6 56%, #EAF3FF 56%, #F8FBFF 100%); }
.security-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; }
.security-copy { color: var(--white); }
.security-copy p, .security-copy li { color: #DCEBFF; }
.security-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.security-point { padding: 16px; border: 1px solid rgba(255,255,255,.18); border-radius: 16px; background: rgba(255,255,255,.08); color: var(--white); }
.security-alerts { display: grid; gap: 12px; padding: 28px; border: 1px solid rgba(255,255,255,.75); border-radius: 24px; background: rgba(255,255,255,.93); box-shadow: var(--shadow); }
.security-alerts strong { color: var(--brand-deep); }

.image-copy { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: center; }
.image-copy.reverse { grid-template-columns: 1.1fr .9fr; }
.image-box { min-height: 420px; display: grid; place-items: center; padding: 30px; border: 1px solid var(--line); border-radius: 28px; background: var(--ice); }
.image-box img { max-height: 350px; width: auto; object-fit: contain; }

.swap-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 22px; }
.swap-intro, .check-panel { padding: 38px; border-radius: 26px; }
.swap-intro { background: linear-gradient(145deg, var(--brand-soft), var(--white)); }
.swap-intro img { max-height: 280px; width: auto; margin: 20px auto 0; object-fit: contain; }
.check-panel { border: 1px solid var(--line); background: var(--white); }
.check-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 24px; }
.check-tile { padding: 14px; border-radius: 14px; background: var(--ice); font-weight: 700; }

.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 26px; background: var(--white); }
.step { position: relative; min-height: 270px; padding: 26px 20px; }
.step + .step { border-left: 1px solid var(--line); }
.step-num { width: 42px; height: 42px; display: grid; place-items: center; margin-bottom: 22px; border-radius: 14px; background: var(--brand-soft); color: var(--brand-deep); font-weight: 900; }
.step p { font-size: 14px; }
.step a { color: var(--brand-deep); font-weight: 800; }

.eco-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.eco-panel { padding: 40px; border-radius: 28px; border: 1px solid var(--line); }
.eco-panel:first-child { background: linear-gradient(150deg, var(--ice), var(--white)); }
.eco-panel:last-child { background: linear-gradient(150deg, var(--brand-soft), var(--white)); }

.timeline { display: grid; gap: 0; border-top: 1px solid var(--line); }
.timeline-item { display: grid; grid-template-columns: 130px 1fr auto; gap: 22px; align-items: start; padding: 22px 0; border-bottom: 1px solid var(--line); }
.timeline-item time { color: var(--brand-deep); font-weight: 800; }
.timeline-item h3 { font-size: 20px; }
.timeline-item p { margin: 5px 0 0; }

.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.review { min-height: 220px; display: flex; flex-direction: column; justify-content: space-between; padding: 26px; border: 1px solid var(--line); border-radius: 22px; background: var(--white); }
.review:nth-child(2), .review:nth-child(5) { background: var(--ice); }
.review-mark { color: var(--brand); font-size: 34px; line-height: 1; }
.review small { color: var(--muted); }

.faq-list { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: 18px; background: var(--white); overflow: hidden; }
.faq-item > button { width: 100%; min-height: 64px; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 16px 20px; border: 0; background: transparent; color: var(--ink); text-align: left; font-weight: 800; }
.faq-item > button::after { content: "+"; color: var(--brand-deep); font-size: 24px; }
.faq-item.is-open > button::after { content: "−"; }
.faq-answer { display: none; padding: 0 20px 20px; }
.faq-item.is-open .faq-answer { display: block; }
.faq-answer p { margin: 0; }

.download-cta { position: relative; overflow: hidden; padding: 70px 30px; border-radius: 30px; background: linear-gradient(135deg, #1767D6, #2980FE); color: var(--white); text-align: center; }
.download-cta::before, .download-cta::after { content: ""; position: absolute; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; }
.download-cta::before { width: 320px; height: 320px; left: -160px; top: -160px; }
.download-cta::after { width: 430px; height: 430px; right: -250px; bottom: -270px; }
.download-cta p { max-width: 720px; margin: 14px auto 26px; color: #EAF3FF; }
.download-cta .download-btn { background: var(--white); color: var(--brand-deep); box-shadow: none; }

.page-hero { padding: 74px 0 58px; background: linear-gradient(180deg, #FFFFFF 0%, #F4F8FF 100%); }
.page-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.page-hero h1 { font-size: clamp(38px, 4.5vw, 62px); }
.page-hero .visual { min-height: 340px; display: grid; place-items: center; padding: 30px; border-radius: 28px; background: radial-gradient(circle at 50% 30%, rgba(41,128,254,.20), transparent 55%), var(--white); border: 1px solid var(--line); }
.page-hero .visual img { max-height: 300px; width: auto; object-fit: contain; }
.content-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.content-box { padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: var(--white); }
.content-box h3 { font-size: 22px; }
.content-box p:last-child { margin-bottom: 0; }
.long-copy { max-width: 880px; }
.long-copy p { margin: 0 0 18px; }
.notice { padding: 24px 26px; border-left: 4px solid var(--brand); border-radius: 0 18px 18px 0; background: var(--brand-soft); }
.notice strong { color: var(--brand-deep); }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 20px; }
table { width: 100%; border-collapse: collapse; min-width: 720px; background: var(--white); }
th, td { padding: 16px 18px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--ice); color: var(--ink); }
tr:last-child td { border-bottom: 0; }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.process-card { padding: 26px; border: 1px solid var(--line); border-radius: 22px; background: var(--white); }
.process-card b { display: inline-grid; place-items: center; width: 38px; height: 38px; margin-bottom: 16px; border-radius: 12px; background: var(--brand-soft); color: var(--brand-deep); }
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }

.site-footer { margin-top: 0; padding: 64px 0 0; background: var(--footer); color: var(--white); }
.footer-grid { width: min(1200px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr; gap: 42px; }
.footer-brand img { width: 154px; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 480px; color: #BFD0E5; }
.site-footer nav { display: grid; align-content: start; gap: 9px; }
.site-footer h2 { margin-bottom: 8px; font-size: 15px; color: #FFFFFF; }
.site-footer a { color: #BFD0E5; font-size: 14px; }
.site-footer a:hover, .site-footer a:focus-visible { color: #FFFFFF; outline: none; }
.footer-bottom { margin-top: 44px; border-top: 1px solid rgba(255,255,255,.12); }
.footer-bottom p { width: min(1200px, calc(100% - 40px)); margin: 0 auto; padding: 20px 0; color: #93A9C4; font-size: 13px; }

@media (max-width: 1180px) {
  .desktop-nav { display: none; }
  .header-inner { grid-template-columns: auto 1fr auto; }
  .header-actions { grid-column: 3; }
  .hero-grid, .page-hero-grid { gap: 34px; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .step:nth-child(4) { border-left: 0; border-top: 1px solid var(--line); }
  .step:nth-child(5), .step:nth-child(6) { border-top: 1px solid var(--line); }
  .content-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .section { padding: 72px 0; }
  .hero-grid, .page-hero-grid, .feature-panel, .dapp-grid, .security-grid, .image-copy, .image-copy.reverse, .swap-layout { grid-template-columns: 1fr; }
  .hero-visual { min-height: 420px; }
  .hero-product { max-height: 390px; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .capability-item + .capability-item { border-left: 0; }
  .capability-item:nth-child(even) { border-left: 1px solid var(--line); }
  .capability-item:nth-child(n+3) { border-top: 1px solid var(--line); }
  .category-mosaic { grid-template-columns: repeat(2, 1fr); }
  .category-card.featured, .category-card.wide { grid-column: span 2; }
  .feature-panel { padding: 34px; }
  .feature-image-wrap { min-height: 360px; }
  .split-feature, .eco-grid { grid-template-columns: 1fr; }
  .info-panel.offset { margin-top: 0; }
  .visual-card { grid-template-columns: 1fr 1fr; min-height: 480px; }
  .security-band { background: linear-gradient(180deg, #102F62 0%, #1767D6 52%, #EAF3FF 52%, #F8FBFF 100%); }
  .review-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline-item { grid-template-columns: 110px 1fr; }
  .timeline-item > a { grid-column: 2; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.6fr 1fr 1fr; }
  .footer-grid nav:last-child { grid-column: 2 / 4; grid-template-columns: repeat(4, auto); }
  .footer-grid nav:last-child h2 { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .header-inner { width: min(100% - 24px, 1200px); min-height: 68px; gap: 8px; }
  .brand img { width: 126px; }
  .header-actions { gap: 7px; }
  .header-actions .download-btn { min-height: 42px; padding: 8px 13px; font-size: 13px; }
  .menu-toggle { width: 42px; height: 42px; }
  .container { width: min(100% - 28px, 1200px); }
  .section { padding: 58px 0; }
  .section-sm { padding: 46px 0; }
  .hero { padding: 58px 0 62px; }
  .hero-grid { gap: 24px; }
  .hero-copy .lead { font-size: 17px; }
  .actions { flex-direction: column; align-items: stretch; }
  .actions a { width: 100%; }
  .hero-visual { min-height: 390px; }
  .hero-product { max-height: 330px; }
  .float-note { min-width: 0; width: calc(50% - 8px); padding: 10px 11px; font-size: 11px; }
  .float-note.one { top: 4%; left: 0; }
  .float-note.two { top: 4%; right: 0; }
  .float-note.three { left: 50%; bottom: 0; transform: translateX(-50%); }
  .capability-strip { margin-top: -18px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-item { min-height: 0; padding: 22px; }
  .capability-item:nth-child(even), .capability-item + .capability-item { border-left: 0; border-top: 1px solid var(--line); }
  .category-mosaic { grid-template-columns: 1fr; }
  .category-card.featured, .category-card.wide { grid-column: auto; min-height: 230px; }
  .feature-panel { padding: 22px; border-radius: 24px; }
  .feature-image-wrap, .image-box { min-height: 300px; }
  .check-list, .check-grid, .security-points { grid-template-columns: 1fr; }
  .info-panel, .visual-card, .content-card, .swap-intro, .check-panel, .eco-panel { padding: 26px; }
  .visual-card { grid-template-columns: 1fr; min-height: 0; }
  .visual-card img { max-height: 250px; }
  .security-band { background: linear-gradient(180deg, #102F62 0%, #1767D6 57%, #EAF3FF 57%, #F8FBFF 100%); }
  .security-alerts { padding: 22px; }
  .steps { grid-template-columns: 1fr; }
  .step { min-height: 0; }
  .step + .step, .step:nth-child(4), .step:nth-child(5), .step:nth-child(6) { border-left: 0; border-top: 1px solid var(--line); }
  .timeline-item { grid-template-columns: 1fr; gap: 6px; }
  .timeline-item > a { grid-column: auto; }
  .review-grid, .content-grid, .process-grid, .contact-grid { grid-template-columns: 1fr; }
  .review { min-height: 190px; }
  .download-cta { padding: 52px 20px; }
  .page-hero { padding: 54px 0 46px; }
  .page-hero .visual { min-height: 260px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-grid nav:last-child { grid-column: 1 / -1; grid-template-columns: 1fr 1fr; }
}