:root {
  --brand: #2980FE;
  --brand-deep: #1767D6;
  --brand-soft: #EAF3FF;
  --blue-gray: #F5F8FD;
  --gray: #F7F9FC;
  --white: #FFFFFF;
  --ink: #172033;
  --text: #465266;
  --muted: #718096;
  --line: #DCE6F2;
  --footer: #10233F;
  --shadow: 0 20px 55px rgba(23, 103, 214, .10);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --content: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft JhengHei", "PingFang TC", Arial, sans-serif; line-height: 1.72; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 2000; padding: 10px 14px; background: var(--ink); color: #fff; border-radius: 10px; transform: translateY(-140%); }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.92); border-bottom: 1px solid rgba(220,230,242,.75); backdrop-filter: blur(18px); }
.header-shell { position: relative; width: min(calc(100% - 40px), var(--content)); min-height: 78px; 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 { width: 154px; max-height: 44px; object-fit: contain; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: 6px; flex: 1 1 auto; min-width: 0; white-space: nowrap; }
.desktop-nav > a, .nav-item > a { display: flex; align-items: center; min-height: 44px; padding: 0 11px; border-radius: 12px; color: #31415a; font-weight: 650; font-size: 14px; }
.desktop-nav > a:hover, .desktop-nav > a:focus-visible, .nav-item > a:hover, .nav-item > a:focus-visible { background: var(--brand-soft); color: var(--brand-deep); outline: none; }
.nav-item { position: relative; }
.has-mega > a::after { content: ""; width: 7px; height: 7px; margin-left: 8px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-2px); }
.mega-menu { position: absolute; top: calc(100% + 14px); left: 50%; width: 760px; padding: 18px; display: grid; grid-template-columns: 1.35fr repeat(2, 1fr); gap: 10px; background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translate(-50%, 8px); transition: .18s ease; white-space: normal; }
.mega-menu::before { content: ""; position: absolute; inset: -16px 0 auto; height: 18px; }
.mega-menu.compact { width: 680px; }
.mega-menu.right-aligned { left: auto; right: -160px; transform: translate(0, 8px); }
.nav-item:hover .mega-menu, .nav-item:focus-within .mega-menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.nav-item:hover .mega-menu.right-aligned, .nav-item:focus-within .mega-menu.right-aligned { transform: translate(0, 0); }
.mega-menu a, .mega-intro { min-height: 92px; padding: 15px; border-radius: 16px; border: 1px solid transparent; display: flex; flex-direction: column; justify-content: center; }
.mega-menu a:hover, .mega-menu a:focus-visible { border-color: #bed7ff; background: var(--brand-soft); outline: none; }
.mega-menu strong { color: var(--ink); font-size: 15px; }
.mega-menu span { margin-top: 3px; color: var(--muted); font-size: 12.5px; line-height: 1.55; }
.mega-intro { grid-row: span 2; background: linear-gradient(145deg, #f1f7ff, #ffffff); border-color: var(--line); }
.mega-intro strong { font-size: 22px; }
.mega-intro span { font-size: 14px; }
.header-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 9px; }
.download-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border-radius: 14px; background: linear-gradient(135deg, var(--brand), var(--brand-deep)); color: #fff; font-weight: 750; box-shadow: 0 12px 28px rgba(41,128,254,.20); transition: transform .18s ease, box-shadow .18s ease; }
.download-btn:hover, .download-btn:focus-visible { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(41,128,254,.28); outline: none; }
.header-download { min-height: 42px; padding: 0 17px; font-size: 14px; }
.more-button, .menu-button, .menu-close { border: 1px solid var(--line); background: #fff; min-width: 44px; min-height: 44px; border-radius: 12px; cursor: pointer; }
.more-button { padding: 0 14px; font-weight: 650; }
.menu-button { display: none; align-items: center; justify-content: center; flex-direction: column; gap: 4px; }
.menu-button span { width: 18px; height: 2px; background: var(--ink); border-radius: 2px; }
.more-panel { position: absolute; right: 0; top: calc(100% - 2px); width: 220px; padding: 10px; background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
.more-panel a { display: block; padding: 11px 12px; border-radius: 10px; color: var(--text); }
.more-panel a:hover { background: var(--brand-soft); color: var(--brand-deep); }
.menu-overlay { position: fixed; inset: 0; z-index: 1100; background: rgba(16,35,63,.42); backdrop-filter: blur(3px); }
.mobile-menu { position: fixed; top: 0; right: 0; z-index: 1200; width: min(90vw, 440px); height: 100dvh; padding: 18px; background: #fff; overflow-y: auto; transform: translateX(105%); transition: transform .24s ease; box-shadow: -24px 0 60px rgba(16,35,63,.18); }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu-top { display: flex; align-items: center; justify-content: space-between; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.menu-close { font-size: 30px; line-height: 1; }
.mobile-menu details { border-bottom: 1px solid var(--line); }
.mobile-menu summary, .mobile-home { display: flex; align-items: center; min-height: 56px; font-weight: 750; cursor: pointer; }
.mobile-menu details div { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 0 0 15px; }
.mobile-menu details a { min-height: 44px; padding: 10px 12px; border-radius: 12px; background: var(--blue-gray); color: var(--text); }
.mobile-download { width: 100%; margin-top: 18px; }
body.menu-open { overflow: hidden; }
main { overflow: hidden; }
.container { width: min(calc(100% - 40px), var(--content)); margin: 0 auto; }
.section { padding: 90px 0; }
.section-sm { padding: 56px 0; }
.section-soft { background: var(--blue-gray); }
.section-blue { background: linear-gradient(135deg, #eaf3ff, #f8fbff 60%, #eef6ff); }
.section-dark { color: #fff; background: linear-gradient(135deg, var(--footer), #163d72 70%, #1d5ca8); }
.eyebrow { display: inline-flex; align-items: center; min-height: 30px; padding: 0 12px; border-radius: 999px; color: var(--brand-deep); background: var(--brand-soft); font-weight: 750; font-size: 13px; letter-spacing: .04em; }
.section-dark .eyebrow { color: #dbeaff; background: rgba(255,255,255,.10); }
h1, h2, h3 { margin: 0; line-height: 1.18; letter-spacing: -.025em; }
h1 { font-size: clamp(42px, 6vw, 72px); }
h2 { font-size: clamp(30px, 4vw, 48px); }
h3 { font-size: clamp(20px, 2.2vw, 28px); }
p { margin: 0; color: var(--text); }
.section-dark p { color: #c9d8ea; }
.lead { font-size: clamp(18px, 2vw, 22px); line-height: 1.72; }
.section-heading { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); align-items: end; gap: 40px; margin-bottom: 38px; }
.section-heading p { max-width: 680px; justify-self: end; }
.hero { position: relative; padding: 90px 0 74px; background: radial-gradient(circle at 80% 10%, rgba(41,128,254,.18), transparent 31%), linear-gradient(180deg, #fbfdff, #f5f9ff); }
.hero::after { content: ""; position: absolute; left: 5%; bottom: 8%; width: 180px; height: 180px; border: 1px solid rgba(41,128,254,.12); border-radius: 50%; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.18fr .82fr; align-items: center; gap: 66px; }
.hero-copy h1 { margin: 18px 0 22px; max-width: 720px; }
.hero-copy .lead { max-width: 720px; }
.hero-copy > p:not(.lead) { margin-top: 18px; max-width: 760px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.text-link, .secondary-button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border-radius: 14px; font-weight: 750; }
.secondary-button { border: 1px solid #bfd4ef; background: rgba(255,255,255,.82); color: var(--brand-deep); }
.text-link { padding: 0; min-height: auto; color: var(--brand-deep); }
.text-link::after { content: "→"; margin-left: 8px; transition: transform .18s ease; }
.text-link:hover::after { transform: translateX(4px); }
.tag-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 26px; }
.tag { display: inline-flex; align-items: center; min-height: 34px; padding: 0 13px; border: 1px solid #cfe0f7; border-radius: 999px; background: rgba(255,255,255,.72); color: #395472; font-size: 13px; font-weight: 700; }
.hero-visual { position: relative; min-height: 550px; display: grid; place-items: center; }
.hero-product { position: relative; z-index: 2; width: min(100%, 430px); max-height: 560px; object-fit: contain; filter: drop-shadow(0 28px 44px rgba(26,91,175,.20)); }
.floating-note { position: absolute; z-index: 3; width: 190px; padding: 14px 16px; background: rgba(255,255,255,.90); border: 1px solid rgba(190,211,238,.85); border-radius: 16px; box-shadow: 0 18px 38px rgba(23,103,214,.12); backdrop-filter: blur(12px); }
.floating-note strong { display: block; font-size: 14px; }
.floating-note span { display: block; margin-top: 3px; color: var(--muted); font-size: 12px; }
.floating-note.one { top: 12%; left: -3%; }
.floating-note.two { right: -2%; top: 39%; }
.floating-note.three { left: 4%; bottom: 10%; }
.ability-strip { position: relative; z-index: 4; margin-top: -26px; display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); }
.ability-strip article { position: relative; padding: 26px; }
.ability-strip article:not(:last-child)::after { content: ""; position: absolute; top: 25%; right: 0; width: 1px; height: 50%; background: var(--line); }
.ability-strip h3 { font-size: 18px; margin-bottom: 8px; }
.ability-strip p { font-size: 14px; }
.category-mosaic { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.category-card { position: relative; min-height: 210px; padding: 26px; display: flex; flex-direction: column; justify-content: space-between; border: 1px solid var(--line); border-radius: 22px; background: #fff; overflow: hidden; }
.category-card::before { content: ""; position: absolute; width: 120px; height: 120px; right: -50px; top: -50px; border-radius: 50%; background: linear-gradient(135deg, rgba(41,128,254,.18), rgba(41,128,254,.02)); }
.category-card.featured { grid-column: span 2; background: linear-gradient(135deg, var(--brand), var(--brand-deep)); border-color: transparent; color: #fff; }
.category-card.featured p, .category-card.featured .text-link { color: #e5f0ff; }
.category-card.wide { grid-column: span 2; background: var(--brand-soft); }
.category-card h3 { font-size: 23px; }
.category-card p { margin: 12px 0 22px; }
.split-feature { display: grid; grid-template-columns: .95fr 1.05fr; gap: 52px; align-items: center; }
.split-feature.reverse { grid-template-columns: 1.05fr .95fr; }
.image-stage { min-height: 470px; padding: 36px; display: grid; place-items: center; border-radius: var(--radius-lg); background: linear-gradient(145deg, #dcecff, #f7fbff); overflow: hidden; }
.image-stage img { width: min(100%, 460px); max-height: 480px; object-fit: contain; filter: drop-shadow(0 24px 34px rgba(26,91,175,.16)); }
.content-panel { padding: 42px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); box-shadow: 0 16px 46px rgba(31,81,143,.08); }
.content-panel h2, .content-panel h3 { margin: 15px 0 18px; }
.content-panel p + p { margin-top: 14px; }
.check-list { display: grid; gap: 11px; margin: 24px 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 30px; color: var(--text); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: .05em; 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; }
.section-dark .check-list li { color: #dce8f6; }
.section-dark .check-list li::before { color: #fff; background: rgba(255,255,255,.15); }
.action-row { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; margin-top: 26px; }
.stagger-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: start; }
.stagger-card { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; }
.stagger-card:nth-child(2) { margin-top: 72px; background: var(--brand-soft); }
.stagger-card h3 { margin: 14px 0; }
.topic-duo { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; }
.topic-card { padding: 38px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; }
.topic-card.large { min-height: 430px; background: linear-gradient(145deg, #eef6ff, #fff); }
.topic-card h3 { margin: 14px 0 16px; }
.topic-card img { width: min(100%, 390px); max-height: 280px; margin: 28px auto 0; object-fit: contain; }
.security-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: center; }
.security-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.security-list article { padding: 18px; border: 1px solid rgba(255,255,255,.16); border-radius: 16px; background: rgba(255,255,255,.07); }
.security-list strong { display: block; margin-bottom: 5px; }
.swap-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: center; }
.swap-image { padding: 28px; border-radius: 28px; background: linear-gradient(145deg, #e8f3ff, #fff); }
.swap-image img { max-height: 410px; margin: 0 auto; object-fit: contain; }
.process { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; counter-reset: steps; }
.process article { position: relative; padding: 24px 18px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.process article::before { counter-increment: steps; content: counter(steps, decimal-leading-zero); display: inline-grid; place-items: center; width: 42px; height: 42px; margin-bottom: 24px; border-radius: 14px; background: var(--brand-soft); color: var(--brand-deep); font-weight: 900; }
.process h3 { font-size: 18px; }
.process p { margin: 10px 0 18px; font-size: 14px; }
.eco-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.eco-card { position: relative; min-height: 360px; padding: 38px; border-radius: var(--radius-lg); overflow: hidden; }
.eco-card:first-child { background: #fff; border: 1px solid var(--line); }
.eco-card:last-child { color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-deep)); }
.eco-card:last-child p, .eco-card:last-child .text-link { color: #e7f1ff; }
.timeline { display: grid; gap: 0; border: 1px solid var(--line); border-radius: 24px; background: #fff; overflow: hidden; }
.timeline article { display: grid; grid-template-columns: 145px 1fr auto; gap: 24px; align-items: center; padding: 22px 26px; }
.timeline article + article { border-top: 1px solid var(--line); }
.timeline time { color: var(--brand-deep); font-weight: 800; font-size: 14px; }
.timeline h3 { font-size: 18px; }
.timeline p { margin-top: 5px; font-size: 14px; }
.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.quote { padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.quote:nth-child(2n) { background: var(--brand-soft); }
.quote p { font-size: 15px; }
.quote strong { display: block; margin-top: 20px; color: var(--ink); }
.faq-list { max-width: 900px; margin: 0 auto; display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: 18px; background: #fff; overflow: hidden; }
.faq-question { width: 100%; min-height: 68px; padding: 16px 22px; display: flex; justify-content: space-between; align-items: center; gap: 16px; border: 0; background: transparent; text-align: left; font-weight: 780; cursor: pointer; }
.faq-question::after { content: "+"; flex: 0 0 auto; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--brand-soft); color: var(--brand-deep); font-size: 22px; }
.faq-item.is-open .faq-question::after { content: "−"; }
.faq-answer { padding: 0 22px 22px; }
.cta { text-align: center; padding: 78px 30px; border-radius: 30px; background: radial-gradient(circle at top right, rgba(255,255,255,.26), transparent 30%), linear-gradient(135deg, var(--brand), var(--brand-deep)); color: #fff; }
.cta h2 { margin: 14px auto 18px; max-width: 780px; }
.cta p { max-width: 720px; margin: 0 auto; color: #e6f0ff; }
.cta .download-btn { margin-top: 28px; background: #fff; color: var(--brand-deep); box-shadow: none; }
.inner-hero { padding: 78px 0 66px; background: radial-gradient(circle at 80% 20%, rgba(41,128,254,.18), transparent 34%), var(--blue-gray); }
.inner-hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 60px; align-items: center; }
.inner-hero h1 { margin: 16px 0 20px; }
.inner-hero-image { min-height: 330px; padding: 30px; display: grid; place-items: center; border-radius: 28px; background: rgba(255,255,255,.78); border: 1px solid var(--line); }
.inner-hero-image img { max-height: 320px; object-fit: contain; }
.content-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.info-card { padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.info-card h3 { margin-bottom: 12px; font-size: 21px; }
.info-card p + p { margin-top: 12px; }
.numbered { counter-reset: item; display: grid; gap: 16px; }
.numbered article { position: relative; padding: 28px 28px 28px 82px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.numbered article::before { counter-increment: item; content: counter(item); position: absolute; left: 24px; top: 24px; width: 40px; height: 40px; display: grid; place-items: center; border-radius: 13px; background: var(--brand-soft); color: var(--brand-deep); font-weight: 900; }
.compare-table { width: 100%; border-collapse: separate; border-spacing: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.compare-table th, .compare-table td { padding: 17px 18px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.compare-table th { color: var(--ink); background: var(--brand-soft); }
.compare-table tr:last-child td { border-bottom: 0; }
.notice { padding: 24px 26px; border-left: 4px solid var(--brand); border-radius: 0 18px 18px 0; background: var(--brand-soft); }
.notice strong { display: block; margin-bottom: 8px; }
.page-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.page-links a { min-height: 42px; padding: 9px 14px; border: 1px solid #bfd4ef; border-radius: 12px; color: var(--brand-deep); font-weight: 700; background: #fff; }
.policy { display: grid; gap: 22px; }
.policy article { padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.policy h2 { font-size: 26px; margin-bottom: 12px; }
.contact-options { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.contact-option { padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.contact-option h2 { font-size: 25px; margin-bottom: 12px; }
.site-footer { padding: 68px 0 24px; background: var(--footer); color: #fff; }
.footer-shell { width: min(calc(100% - 40px), var(--content)); margin: 0 auto; display: grid; grid-template-columns: 1.7fr repeat(3, 1fr); gap: 44px; }
.footer-brand img { filter: brightness(0) invert(1); }
.footer-brand p { margin-top: 18px; max-width: 430px; color: #b9c9dc; }
.footer-links { display: grid; align-content: start; gap: 9px; }
.footer-links strong { margin-bottom: 6px; }
.footer-links a { color: #b9c9dc; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-note { width: min(calc(100% - 40px), var(--content)); margin: 42px auto 0; padding-top: 22px; display: flex; justify-content: space-between; gap: 30px; border-top: 1px solid rgba(255,255,255,.13); }
.footer-note p { color: #9eb2c9; font-size: 13px; }
.footer-note span { flex: 0 0 auto; color: #9eb2c9; font-size: 13px; }
@media (max-width: 1120px) {
  .desktop-nav > a, .nav-item > a { padding: 0 8px; font-size: 13px; }
  .more-button { display: none; }
  .more-panel { display: none; }
  .process { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 980px) {
  .desktop-nav { display: none; }
  .header-shell { min-height: 70px; }
  .header-actions { margin-left: auto; }
  .menu-button { display: flex; }
  .hero-grid, .inner-hero-grid, .split-feature, .split-feature.reverse, .security-grid, .swap-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 470px; }
  .ability-strip { grid-template-columns: 1fr 1fr; }
  .ability-strip article:nth-child(2)::after { display: none; }
  .category-mosaic { grid-template-columns: repeat(2, 1fr); }
  .category-card.featured, .category-card.wide { grid-column: span 1; }
  .stagger-grid, .topic-duo, .eco-grid { grid-template-columns: 1fr; }
  .stagger-card:nth-child(2) { margin-top: 0; }
  .content-grid, .testimonials { grid-template-columns: repeat(2, 1fr); }
  .section-heading { grid-template-columns: 1fr; gap: 16px; }
  .section-heading p { justify-self: start; }
  .footer-shell { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-links:last-child { grid-column: 2 / 4; grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 680px) {
  .header-shell, .container, .footer-shell, .footer-note { width: min(calc(100% - 28px), var(--content)); }
  .brand img { width: 126px; }
  .header-actions { gap: 6px; }
  .header-download { min-height: 40px; padding: 0 13px; font-size: 13px; }
  .section { padding: 64px 0; }
  .section-sm { padding: 44px 0; }
  .hero { padding: 62px 0 58px; }
  h1 { font-size: clamp(38px, 12vw, 54px); }
  h2 { font-size: clamp(28px, 9vw, 38px); }
  .hero-grid { gap: 30px; }
  .hero-actions, .action-row { align-items: stretch; flex-direction: column; }
  .hero-actions a, .action-row a { width: 100%; }
  .hero-visual { min-height: 410px; }
  .hero-product { max-height: 400px; }
  .floating-note { width: 46%; padding: 10px 11px; }
  .floating-note.one { top: 2%; left: 0; }
  .floating-note.two { right: 0; top: 40%; }
  .floating-note.three { left: 1%; bottom: 1%; }
  .ability-strip, .category-mosaic, .content-grid, .testimonials, .security-list, .contact-options { grid-template-columns: 1fr; }
  .ability-strip article:not(:last-child)::after { top: auto; bottom: 0; left: 24px; right: 24px; width: auto; height: 1px; }
  .category-card { min-height: 190px; }
  .image-stage { min-height: 350px; padding: 24px; }
  .content-panel, .topic-card, .stagger-card, .eco-card { padding: 26px; }
  .process { grid-template-columns: 1fr; }
  .timeline article { grid-template-columns: 1fr; gap: 8px; }
  .timeline article .text-link { justify-self: start; }
  .compare-table { display: block; overflow-x: auto; }
  .numbered article { padding: 76px 22px 24px; }
  .numbered article::before { left: 22px; top: 20px; }
  .footer-shell { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-links:last-child { grid-column: 1 / -1; grid-template-columns: 1fr 1fr; }
  .footer-note { flex-direction: column; }
}
@media (max-width: 400px) {
  .header-download { padding: 0 10px; }
  .menu-button { min-width: 40px; min-height: 40px; }
  .mobile-menu details div { grid-template-columns: 1fr; }
}