:root {
  --brand: #2980FE;
  --brand-dark: #1767D6;
  --brand-soft: #EAF3FF;
  --ice: #F5F8FD;
  --gray: #F7F9FC;
  --white: #FFFFFF;
  --ink: #172033;
  --text: #465266;
  --muted: #718096;
  --border: #DCE6F2;
  --footer: #10233F;
  --shadow: 0 18px 50px rgba(31, 82, 145, .10);
  --shadow-soft: 0 10px 32px rgba(31, 82, 145, .08);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: 1220px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", 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 { font: inherit; }
button { color: inherit; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 9999; padding: 10px 16px; border-radius: 10px; background: var(--ink); color: #fff; }
.skip-link:focus { top: 16px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px; color: var(--brand-dark); font-size: .86rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--brand); border-radius: 99px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.22; }
h1 { font-size: clamp(2.35rem, 5vw, 4.8rem); letter-spacing: -.045em; }
h2 { font-size: clamp(1.8rem, 3.4vw, 3.1rem); letter-spacing: -.03em; }
h3 { font-size: clamp(1.15rem, 2vw, 1.45rem); }
p { color: var(--text); }
.lead { font-size: clamp(1.05rem, 1.7vw, 1.24rem); }
.section-head { max-width: 760px; margin-bottom: 38px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--brand-dark); font-weight: 800; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.primary-button, .secondary-button, .download-btn { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 12px 22px; border-radius: 999px; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.primary-button, .download-btn { color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-dark)); box-shadow: 0 10px 24px rgba(41, 128, 254, .24); }
.secondary-button { color: var(--brand-dark); background: var(--brand-soft); border: 1px solid rgba(41,128,254,.12); }
.primary-button:hover, .download-btn:hover, .secondary-button:hover { transform: translateY(-2px); }

.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.92); border-bottom: 1px solid rgba(220,230,242,.88); backdrop-filter: blur(16px); }
.header-inner { width: min(calc(100% - 32px), 1380px); min-height: 78px; margin-inline: auto; display: flex; align-items: center; gap: 26px; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand img { max-height: 46px; width: auto; object-fit: contain; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: 2px; margin-inline: auto; white-space: nowrap; }
.nav-link { position: relative; display: inline-flex; align-items: center; min-height: 46px; padding: 0 11px; border-radius: 12px; color: #344057; font-size: .94rem; font-weight: 750; }
.nav-link:hover, .nav-link.is-active, .nav-group.is-active > .nav-link { color: var(--brand-dark); background: var(--brand-soft); }
.nav-group { position: relative; }
.mega-menu { position: absolute; left: 50%; top: calc(100% + 14px); width: 650px; display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 8px; padding: 18px; border: 1px solid var(--border); border-radius: 22px; background: rgba(255,255,255,.98); box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translate(-50%, 8px); transition: .2s ease; }
.mega-menu::before { content: ""; position: absolute; inset: -16px 0 auto; height: 16px; }
.mega-menu-right { left: auto; right: 0; transform: translate(0, 8px); }
.nav-group:hover .mega-menu, .nav-group:focus-within .mega-menu { opacity: 1; visibility: visible; 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: 86px; padding: 14px; border-radius: 15px; }
.mega-menu a:hover, .mega-menu a:focus { background: var(--brand-soft); outline: none; }
.mega-menu b, .mega-intro strong { display: block; margin-bottom: 5px; color: var(--ink); }
.mega-menu span, .mega-intro span { display: block; color: var(--muted); font-size: .82rem; line-height: 1.55; white-space: normal; }
.mega-intro { grid-row: span 2; background: linear-gradient(145deg, var(--brand-soft), #fff); border: 1px solid rgba(41,128,254,.12); }
.header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.header-download { min-height: 44px; padding: 10px 18px; white-space: nowrap; }
.icon-button, .menu-button, .close-button { border: 0; cursor: pointer; background: none; }
.icon-button, .menu-button { width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 13px; display: inline-flex; flex-direction: column; justify-content: center; align-items: center; gap: 4px; background: #fff; }
.icon-button span { width: 4px; height: 4px; border-radius: 50%; background: var(--ink); }
.menu-button { display: none; }
.menu-button span { width: 20px; height: 2px; border-radius: 99px; background: var(--ink); }
.more-wrap { position: relative; }
.more-panel { position: absolute; right: 0; top: 52px; min-width: 180px; padding: 8px; border: 1px solid var(--border); border-radius: 16px; background: #fff; box-shadow: var(--shadow-soft); }
.more-panel a { display: block; padding: 10px 12px; border-radius: 10px; font-weight: 700; }
.more-panel a:hover { background: var(--brand-soft); color: var(--brand-dark); }
.menu-overlay { position: fixed; inset: 0; z-index: 1100; background: rgba(10,30,58,.36); opacity: 0; transition: opacity .22s ease; }
.menu-overlay.is-visible { opacity: 1; }
.mobile-menu { position: fixed; top: 0; right: 0; z-index: 1200; width: min(92vw, 480px); height: 100dvh; display: flex; flex-direction: column; background: #fff; transform: translateX(105%); transition: transform .28s ease; box-shadow: -20px 0 60px rgba(16,35,63,.18); }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu-head { min-height: 76px; padding: 14px 18px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); }
.close-button { width: 44px; height: 44px; border-radius: 12px; background: var(--gray); font-size: 2rem; line-height: 1; }
.mobile-menu-scroll { overflow-y: auto; padding: 18px; }
.mobile-home { display: flex; min-height: 50px; align-items: center; padding: 0 14px; border-radius: 13px; font-weight: 800; }
.mobile-home:hover { background: var(--brand-soft); color: var(--brand-dark); }
.mobile-group { border-bottom: 1px solid var(--border); }
.mobile-group > button { width: 100%; min-height: 56px; display: flex; align-items: center; justify-content: space-between; padding: 0 14px; border: 0; background: transparent; cursor: pointer; font-weight: 800; text-align: left; }
.mobile-group-panel { padding: 0 8px 12px; }
.mobile-group-panel a { display: flex; min-height: 46px; align-items: center; padding: 0 14px; border-radius: 10px; color: var(--text); }
.mobile-group-panel a:hover { background: var(--brand-soft); color: var(--brand-dark); }
.mobile-download { width: 100%; margin-top: 20px; }

.hero { position: relative; overflow: hidden; padding: 84px 0 68px; background: radial-gradient(circle at 88% 20%, rgba(41,128,254,.16), transparent 30%), linear-gradient(180deg, #fff, var(--ice)); }
.hero::before { content: ""; position: absolute; width: 380px; height: 380px; left: -220px; top: 100px; border: 1px solid rgba(41,128,254,.12); border-radius: 50%; }
.hero-grid { display: grid; grid-template-columns: 1.12fr .88fr; gap: 56px; align-items: center; }
.hero-copy { max-width: 700px; }
.hero-copy h1 { margin-bottom: 22px; }
.hero-copy .lead { max-width: 650px; margin-bottom: 28px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 9px; margin: 26px 0 0; padding: 0; list-style: none; }
.hero-tags li { padding: 8px 13px; border: 1px solid var(--border); border-radius: 999px; background: rgba(255,255,255,.78); color: var(--text); font-weight: 700; font-size: .9rem; }
.hero-visual { position: relative; min-height: 570px; display: grid; place-items: center; }
.hero-device { position: relative; z-index: 2; max-height: 520px; object-fit: contain; filter: drop-shadow(0 30px 45px rgba(24,82,156,.18)); }
.hero-orbit { position: absolute; inset: 7% 5%; border: 1px solid rgba(41,128,254,.17); border-radius: 50%; transform: rotate(-12deg); }
.float-note { position: absolute; z-index: 3; max-width: 190px; padding: 14px 16px; border: 1px solid rgba(220,230,242,.9); border-radius: 16px; background: rgba(255,255,255,.9); box-shadow: var(--shadow-soft); backdrop-filter: blur(12px); }
.float-note b { display: block; margin-bottom: 4px; font-size: .94rem; }
.float-note span { color: var(--muted); font-size: .8rem; }
.float-a { left: 0; top: 18%; }.float-b { right: 0; top: 42%; }.float-c { left: 8%; bottom: 11%; }
.capability-strip { position: relative; z-index: 4; margin-top: -28px; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--border); border-radius: 24px; background: #fff; box-shadow: var(--shadow-soft); overflow: hidden; }
.capability { padding: 26px; }
.capability + .capability { border-left: 1px solid var(--border); }
.capability h2 { margin-bottom: 8px; font-size: 1.05rem; }
.capability p { margin-bottom: 0; font-size: .91rem; }

.section { padding: 100px 0; }
.section-soft { background: var(--ice); }
.section-blue { background: linear-gradient(135deg, #153a69, var(--brand-dark)); color: #fff; }
.section-blue h2, .section-blue h3 { color: #fff; }
.section-blue p, .section-blue li { color: rgba(255,255,255,.82); }
.category-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.category-card { position: relative; min-height: 220px; padding: 28px; border: 1px solid var(--border); border-radius: 22px; background: #fff; overflow: hidden; box-shadow: 0 10px 30px rgba(30,77,130,.05); }
.category-card::after { content: attr(data-number); position: absolute; right: 20px; top: 8px; color: rgba(41,128,254,.09); font-size: 4.5rem; font-weight: 900; line-height: 1; }
.category-card h3 { position: relative; z-index: 1; margin-bottom: 14px; }
.category-card p, .category-card a { position: relative; z-index: 1; }
.category-card p { min-height: 82px; }
.category-card:nth-child(1) { grid-column: span 3; background: linear-gradient(140deg, var(--brand-soft), #fff 70%); }
.category-card:nth-child(2), .category-card:nth-child(3), .category-card:nth-child(4) { grid-column: span 1; }
.category-card:nth-child(5), .category-card:nth-child(6), .category-card:nth-child(7) { grid-column: span 2; }
.category-card:nth-child(8), .category-card:nth-child(9), .category-card:nth-child(10) { grid-column: span 2; }

.feature-panel { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 58px; padding: 48px; border-radius: var(--radius-lg); background: linear-gradient(145deg, var(--brand-soft), #fff); border: 1px solid rgba(41,128,254,.12); }
.feature-panel.reverse { grid-template-columns: 1.1fr .9fr; }
.feature-panel.reverse .feature-image { order: 2; }
.feature-image { min-height: 430px; display: grid; place-items: center; border-radius: 24px; background: rgba(255,255,255,.74); }
.feature-image img { max-height: 410px; object-fit: contain; }
.check-list { display: grid; gap: 12px; padding: 0; margin: 24px 0 30px; list-style: none; }
.check-list li { position: relative; padding-left: 30px; color: var(--text); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 21px; height: 21px; display: grid; place-items: center; border-radius: 50%; background: var(--brand-soft); color: var(--brand-dark); font-size: .76rem; font-weight: 900; }
.section-blue .check-list li::before { background: rgba(255,255,255,.14); color: #fff; }
.dual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
.topic-panel { padding: 38px; border: 1px solid var(--border); border-radius: 24px; background: #fff; }
.topic-panel.offset { transform: translateY(36px); }
.topic-panel ul { padding-left: 20px; color: var(--text); }
.topic-panel li + li { margin-top: 8px; }
.media-card-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; }
.media-card { min-height: 520px; padding: 42px; border-radius: 26px; background: var(--brand-soft); overflow: hidden; }
.media-card.compact { background: #fff; border: 1px solid var(--border); }
.media-card img { max-height: 250px; margin: 28px auto 0; object-fit: contain; }
.security-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 54px; align-items: center; }
.security-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.security-point { padding: 20px; border: 1px solid rgba(255,255,255,.18); border-radius: 17px; background: rgba(255,255,255,.08); }
.security-point h3 { font-size: 1rem; margin-bottom: 7px; }
.security-point p { margin-bottom: 0; font-size: .9rem; }
.swap-layout { display: grid; grid-template-columns: .88fr 1.12fr; gap: 48px; align-items: center; }
.swap-visual { padding: 34px; border-radius: 26px; background: linear-gradient(145deg, var(--brand-soft), #fff); border: 1px solid var(--border); }
.swap-visual img { max-height: 340px; margin-inline: auto; object-fit: contain; }
.audit-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; padding: 0; margin: 25px 0; list-style: none; }
.audit-list li { padding: 14px 16px; border: 1px solid var(--border); border-radius: 14px; background: #fff; font-weight: 750; }
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; counter-reset: step; }
.step { position: relative; padding: 24px 18px; border: 1px solid var(--border); border-radius: 18px; background: #fff; }
.step::before { counter-increment: step; content: "0" counter(step); display: inline-flex; margin-bottom: 18px; color: var(--brand); font-size: .85rem; font-weight: 900; }
.step h3 { min-height: 58px; font-size: 1.03rem; }
.step p { font-size: .88rem; }
.notice-list { border-top: 1px solid var(--border); }
.notice { display: grid; grid-template-columns: 130px 1fr auto; gap: 24px; align-items: start; padding: 22px 0; border-bottom: 1px solid var(--border); }
.notice time { color: var(--brand-dark); font-weight: 800; }
.notice h3 { margin-bottom: 6px; font-size: 1.08rem; }
.notice p { margin-bottom: 0; }
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.quote-card { padding: 28px; border: 1px solid var(--border); border-radius: 20px; background: #fff; }
.quote-card::before { content: "“"; color: var(--brand); font-size: 2.5rem; font-weight: 900; line-height: 1; }
.quote-card p { margin: 10px 0 14px; }
.quote-card span { color: var(--muted); font-size: .85rem; font-weight: 800; }
.faq-list { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--border); border-radius: 17px; background: #fff; overflow: hidden; }
.faq-question { width: 100%; min-height: 64px; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 17px 20px; border: 0; background: transparent; cursor: pointer; text-align: left; font-weight: 850; }
.faq-question span:last-child { color: var(--brand); font-size: 1.35rem; transition: transform .2s ease; }
.faq-item.is-open .faq-question span:last-child { transform: rotate(45deg); }
.faq-answer { padding: 0 20px 20px; }
.faq-answer p { margin-bottom: 0; }
.cta { padding: 88px 0; background: linear-gradient(135deg, var(--brand-soft), #fff 65%); }
.cta-box { max-width: 920px; margin-inline: auto; padding: 54px; border: 1px solid rgba(41,128,254,.17); border-radius: 30px; background: rgba(255,255,255,.72); text-align: center; box-shadow: var(--shadow-soft); }
.cta-box .button-row { justify-content: center; }

.inner-hero { position: relative; overflow: hidden; padding: 82px 0 64px; background: linear-gradient(180deg, #fff, var(--ice)); }
.inner-hero::after { content: ""; position: absolute; right: -90px; bottom: -170px; width: 420px; height: 420px; border-radius: 50%; background: radial-gradient(circle, rgba(41,128,254,.14), transparent 68%); }
.inner-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr .92fr; gap: 50px; align-items: center; }
.inner-hero h1 { max-width: 780px; margin-bottom: 20px; }
.inner-hero p { max-width: 720px; font-size: 1.1rem; }
.inner-hero-art { min-height: 330px; display: grid; place-items: center; padding: 28px; border: 1px solid var(--border); border-radius: 26px; background: rgba(255,255,255,.72); }
.inner-hero-art img { max-height: 320px; object-fit: contain; }
.pill-row { display: flex; flex-wrap: wrap; gap: 9px; margin: 24px 0; }
.pill { padding: 7px 12px; border-radius: 999px; background: var(--brand-soft); color: var(--brand-dark); font-size: .86rem; font-weight: 800; }
.content-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
.content-grid.reverse { grid-template-columns: .9fr 1.1fr; }
.content-grid.reverse > :first-child { order: 2; }
.sticky-summary { position: sticky; top: 110px; padding: 28px; border: 1px solid var(--border); border-radius: 22px; background: var(--ice); }
.sticky-summary h2 { font-size: 1.25rem; }
.sticky-summary nav { display: grid; gap: 8px; }
.sticky-summary a { padding: 9px 12px; border-radius: 10px; color: var(--text); font-weight: 700; }
.sticky-summary a:hover { color: var(--brand-dark); background: #fff; }
.prose h2 { margin-top: 48px; font-size: clamp(1.55rem, 3vw, 2.35rem); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 30px; }
.prose ul, .prose ol { color: var(--text); padding-left: 22px; }
.prose li + li { margin-top: 7px; }
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.info-card { padding: 26px; border: 1px solid var(--border); border-radius: 20px; background: #fff; }
.info-card h3 { margin-bottom: 10px; }
.info-card p { margin-bottom: 0; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 18px; }
table { width: 100%; border-collapse: collapse; min-width: 680px; }
th, td { padding: 16px 18px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { background: var(--ice); color: var(--ink); }
tr:last-child td { border-bottom: 0; }
.alert-box { margin: 28px 0; padding: 24px; border-left: 4px solid var(--brand); border-radius: 0 16px 16px 0; background: var(--brand-soft); }
.alert-box strong { display: block; margin-bottom: 6px; }
.process-list { display: grid; gap: 16px; counter-reset: process; }
.process-item { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 22px; border: 1px solid var(--border); border-radius: 18px; background: #fff; }
.process-item::before { counter-increment: process; content: counter(process); width: 48px; height: 48px; display: grid; place-items: center; border-radius: 14px; background: var(--brand-soft); color: var(--brand-dark); font-weight: 900; }
.process-item h3 { margin-bottom: 6px; }
.process-item p { margin-bottom: 0; }
.contact-options { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.contact-option { padding: 30px; border: 1px solid var(--border); border-radius: 22px; background: #fff; }
.contact-option p:last-child { margin-bottom: 0; }

.site-footer { padding: 70px 0 24px; background: var(--footer); color: #fff; }
.footer-main { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 46px; }
.brand-footer img { filter: brightness(0) invert(1); }
.footer-brand p { max-width: 390px; margin-top: 18px; color: rgba(255,255,255,.68); }
.footer-links h2 { margin-bottom: 16px; color: #fff; font-size: 1rem; }
.footer-links a { display: block; padding: 5px 0; color: rgba(255,255,255,.68); }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; margin-top: 48px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); }
.footer-bottom p { margin: 0; color: rgba(255,255,255,.55); }
.footer-bottom div { display: flex; gap: 18px; }
.footer-bottom a { color: rgba(255,255,255,.68); }

@media (max-width: 1180px) {
  .desktop-nav { display: none; }
  .menu-button { display: inline-flex; }
  .header-inner { gap: 16px; }
  .hero-grid, .inner-hero-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 920px) {
  .section { padding: 78px 0; }
  .hero { padding-top: 62px; }
  .hero-grid, .inner-hero-grid, .feature-panel, .feature-panel.reverse, .security-layout, .swap-layout, .content-grid, .content-grid.reverse { grid-template-columns: 1fr; }
  .content-grid.reverse > :first-child, .feature-panel.reverse .feature-image { order: initial; }
  .hero-visual { min-height: 490px; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .capability:nth-child(3) { border-left: 0; border-top: 1px solid var(--border); }
  .capability:nth-child(4) { border-top: 1px solid var(--border); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .category-card, .category-card:nth-child(n) { grid-column: span 1; }
  .category-card:first-child { grid-column: span 2; }
  .dual-grid, .media-card-grid, .quote-grid, .info-grid { grid-template-columns: repeat(2, 1fr); }
  .topic-panel.offset { transform: none; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-links:last-child { grid-column: 2 / span 2; }
  .sticky-summary { position: static; }
}
@media (max-width: 640px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .header-inner { width: calc(100% - 20px); min-height: 68px; }
  .brand img { max-width: 132px; max-height: 40px; }
  .header-download { min-height: 42px; padding: 9px 14px; font-size: .88rem; }
  .more-wrap { display: none; }
  .hero { padding: 48px 0 50px; }
  .hero-grid { display: flex; flex-direction: column; gap: 24px; }
  .hero-copy { width: 100%; }
  .hero-copy h1 { font-size: clamp(2.2rem, 12vw, 3.5rem); }
  .hero-visual { width: 100%; min-height: 430px; }
  .hero-device { max-height: 360px; }
  .float-note { max-width: 155px; padding: 11px 12px; }
  .float-a { left: 0; top: 10%; }.float-b { right: 0; top: 44%; }.float-c { left: 0; bottom: 4%; }
  .capability-strip { margin-top: 0; }
  .capability-grid { grid-template-columns: 1fr; border-radius: 18px; }
  .capability + .capability { border-left: 0; border-top: 1px solid var(--border); }
  .section { padding: 64px 0; }
  .category-grid, .dual-grid, .media-card-grid, .quote-grid, .info-grid, .security-points, .audit-list, .contact-options { grid-template-columns: 1fr; }
  .category-card:first-child, .category-card:nth-child(n) { grid-column: span 1; }
  .feature-panel { padding: 24px; gap: 28px; }
  .feature-image { min-height: 300px; }
  .topic-panel, .media-card { padding: 26px; }
  .media-card { min-height: auto; }
  .notice { grid-template-columns: 1fr; gap: 7px; }
  .steps { grid-template-columns: 1fr; }
  .step h3 { min-height: auto; }
  .cta-box { padding: 34px 22px; }
  .inner-hero { padding: 54px 0 46px; }
  .inner-hero-grid { gap: 28px; }
  .inner-hero-art { min-height: 260px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 34px 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-links:last-child { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
}
@media (max-width: 420px) {
  .header-download { padding-inline: 12px; }
  .menu-button { width: 42px; height: 42px; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-links:last-child { grid-column: auto; }
  .button-row > * { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}