:root {
  --blue: #2980FE;
  --blue-deep: #1767D6;
  --blue-soft: #EAF3FF;
  --blue-faint: #F5F8FD;
  --gray: #F7F9FC;
  --white: #FFFFFF;
  --ink: #172033;
  --text: #465266;
  --muted: #718096;
  --line: #DCE6F2;
  --footer: #10233F;
  --shadow: 0 18px 48px rgba(33, 82, 150, .10);
  --shadow-soft: 0 10px 30px rgba(33, 82, 150, .08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; overflow-x: hidden; color: var(--text); background: var(--white); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif; line-height: 1.75; }
img { display: block; max-width: 100%; height: auto; }
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: 999; transform: translateY(-150%); padding: 10px 14px; border-radius: 10px; background: var(--ink); color: #fff; }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; top: 0; z-index: 80; border-bottom: 1px solid rgba(220,230,242,.8); background: rgba(255,255,255,.94); backdrop-filter: blur(14px); }
.nav-shell { width: min(calc(100% - 36px), 1340px); min-height: 76px; margin: 0 auto; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; flex: 0 0 auto; align-items: center; }
.brand img { width: auto; max-width: 156px; max-height: 44px; object-fit: contain; }
.desktop-nav { min-width: 0; flex: 1; display: flex; justify-content: center; align-items: stretch; gap: 2px; white-space: nowrap; }
.nav-link, .nav-trigger { min-height: 76px; display: inline-flex; align-items: center; border: 0; border-bottom: 2px solid transparent; padding: 0 10px; background: transparent; color: #38465c; font-size: 14px; font-weight: 700; cursor: pointer; }
.nav-link:hover, .nav-trigger:hover, .nav-link:focus-visible, .nav-trigger:focus-visible, .nav-link.is-active, .nav-group.is-active > .nav-trigger { color: var(--blue-deep); border-bottom-color: var(--blue); outline: none; }
.nav-trigger span { margin-left: 5px; font-size: 12px; }
.nav-group { position: relative; display: flex; }
.mega-menu { position: absolute; top: calc(100% + 1px); left: -100px; width: 650px; padding: 22px; display: grid; grid-template-columns: 190px 1fr; gap: 20px; border: 1px solid var(--line); border-radius: 0 0 22px 22px; background: #fff; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(10px); transition: .18s ease; white-space: normal; }
.mega-menu-right { left: auto; right: -100px; }
.compact-menu { width: 570px; }
.nav-group.is-open .mega-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.mega-intro { padding: 18px; border-radius: 16px; background: linear-gradient(145deg, var(--blue-soft), #fff); }
.mega-intro strong { color: var(--ink); font-size: 19px; }
.mega-intro p { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.mega-links { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px; }
.mega-links a { display: block; padding: 12px 13px; border-radius: 13px; transition: .18s ease; }
.mega-links a:hover, .mega-links a:focus-visible { background: var(--blue-faint); outline: none; }
.mega-links strong { display: block; color: var(--ink); font-size: 14px; }
.mega-links span { display: block; margin-top: 2px; color: var(--muted); font-size: 12px; line-height: 1.45; }
.nav-actions { display: flex; flex: 0 0 auto; align-items: center; gap: 9px; }
.button { min-height: 48px; padding: 12px 22px; display: inline-flex; justify-content: center; align-items: center; gap: 8px; border: 1px solid transparent; border-radius: 14px; font-weight: 800; line-height: 1.2; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: linear-gradient(135deg, var(--blue), var(--blue-deep)); color: #fff; box-shadow: 0 11px 24px rgba(41,128,254,.22); }
.button-secondary { border-color: var(--line); background: #fff; color: var(--blue-deep); }
.button-ghost { border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.12); color: #fff; }
.button-light { background: #fff; color: var(--blue-deep); }
.button-small { min-height: 44px; padding: 10px 17px; font-size: 14px; white-space: nowrap; }
.button-full { width: 100%; }
.icon-button { width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 13px; background: #fff; display: inline-grid; place-items: center; cursor: pointer; }
.menu-button { display: none; padding: 10px; }
.menu-button span { width: 20px; height: 2px; margin: 2px 0; display: block; border-radius: 5px; background: var(--ink); }
.more-wrap { position: relative; }
.more-menu { position: absolute; top: calc(100% + 10px); right: 0; width: 170px; padding: 9px; border: 1px solid var(--line); border-radius: 15px; background: #fff; box-shadow: var(--shadow-soft); opacity: 0; visibility: hidden; transform: translateY(8px); transition: .18s ease; }
.more-wrap.is-open .more-menu { opacity: 1; visibility: visible; transform: none; }
.more-menu a { display: block; padding: 9px 10px; border-radius: 9px; font-size: 14px; font-weight: 700; }
.more-menu a:hover { background: var(--blue-faint); color: var(--blue-deep); }
.menu-overlay { position: fixed; inset: 0; z-index: 90; background: rgba(12,30,54,.48); opacity: 0; transition: opacity .22s ease; }
.menu-overlay.is-visible { opacity: 1; }
.mobile-menu { position: fixed; z-index: 100; top: 0; right: 0; width: min(92vw, 430px); height: 100dvh; display: flex; flex-direction: column; background: #fff; box-shadow: -22px 0 48px rgba(16,35,63,.17); transform: translateX(105%); transition: transform .24s ease; }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu-head { min-height: 72px; padding: 14px 18px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--line); }
.close-button { font-size: 28px; font-weight: 300; }
.mobile-menu-body { flex: 1; overflow-y: auto; padding: 16px 18px 28px; }
.mobile-home, .mobile-menu summary { min-height: 52px; display: flex; align-items: center; color: var(--ink); font-weight: 800; cursor: pointer; }
.mobile-menu details { border-bottom: 1px solid var(--line); }
.mobile-menu summary { justify-content: space-between; list-style: none; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu summary::after { content: '+'; color: var(--blue); font-size: 20px; }
.mobile-menu details[open] summary::after { content: '−'; }
.mobile-menu details div { padding: 0 0 10px 12px; }
.mobile-menu details a { min-height: 44px; display: flex; align-items: center; color: var(--muted); font-size: 15px; }
.mobile-menu-foot { padding: 16px 18px max(16px, env(safe-area-inset-bottom)); border-top: 1px solid var(--line); }
.menu-open { overflow: hidden; }
main { display: block; }
.container { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; }
.section { padding: 92px 0; }
.section-sm { padding: 64px 0; }
.section-soft { background: var(--blue-faint); }
.section-blue { background: linear-gradient(150deg, var(--blue-soft), #f9fcff); }
.section-dark { position: relative; overflow: hidden; background: linear-gradient(135deg, #10233F, #174e92); color: #fff; }
.section-dark::before { content: ''; position: absolute; width: 420px; height: 420px; right: -120px; top: -180px; border-radius: 50%; background: rgba(94,165,255,.18); filter: blur(2px); }
.eyebrow { margin: 0 0 10px; color: var(--blue-deep); font-size: 13px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.section-dark .eyebrow { color: #99c8ff; }
h1,h2,h3 { margin-top: 0; color: var(--ink); line-height: 1.2; }
h1 { margin-bottom: 22px; font-size: clamp(38px, 5.2vw, 72px); letter-spacing: -.04em; }
h2 { margin-bottom: 18px; font-size: clamp(28px, 3.5vw, 46px); letter-spacing: -.025em; }
h3 { margin-bottom: 10px; font-size: 21px; }
p { margin: 0 0 18px; }
.section-dark h1, .section-dark h2, .section-dark h3 { color: #fff; }
.lead { max-width: 760px; color: #546278; font-size: clamp(17px, 1.7vw, 21px); line-height: 1.8; }
.section-dark .lead, .section-dark p { color: rgba(255,255,255,.78); }
.section-head { max-width: 760px; margin-bottom: 40px; }
.section-head.center { margin-right: auto; margin-left: auto; text-align: center; }
.actions { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; }
.text-link { color: var(--blue-deep); font-weight: 800; }
.text-link::after { content: ' →'; }
.tag-list { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 9px; }
.tag { padding: 8px 12px; border: 1px solid #d8e7fb; border-radius: 999px; background: rgba(255,255,255,.72); color: #31557d; font-size: 13px; font-weight: 800; }
.hero { position: relative; overflow: hidden; padding: 92px 0 72px; background: radial-gradient(circle at 86% 18%, rgba(41,128,254,.15), transparent 32%), linear-gradient(180deg, #fff, #f6faff); }
.hero::after { content: ''; position: absolute; width: 550px; height: 550px; left: -350px; bottom: -390px; border-radius: 50%; border: 60px solid rgba(41,128,254,.06); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(360px, .88fr); gap: 56px; align-items: center; }
.hero-copy .lead { max-width: 720px; }
.hero-visual { position: relative; min-height: 540px; display: grid; place-items: center; }
.product-stage { width: min(100%, 480px); min-height: 500px; padding: 28px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.75); border-radius: 38px; background: linear-gradient(155deg, rgba(255,255,255,.9), rgba(223,238,255,.8)); box-shadow: 0 30px 80px rgba(27,91,173,.17); }
.product-stage img { max-height: 455px; object-fit: contain; }
.float-note { position: absolute; min-width: 176px; padding: 13px 15px; border: 1px solid rgba(220,230,242,.9); border-radius: 14px; background: rgba(255,255,255,.92); box-shadow: var(--shadow-soft); color: var(--ink); font-size: 13px; font-weight: 800; backdrop-filter: blur(10px); }
.float-note::before { content: '✓'; width: 25px; height: 25px; margin-right: 8px; display: inline-grid; place-items: center; border-radius: 50%; background: var(--blue-soft); color: var(--blue-deep); }
.note-one { top: 9%; left: -4%; }.note-two { right: -7%; top: 47%; }.note-three { left: 1%; bottom: 7%; }
.capability-strip { position: relative; z-index: 3; margin-top: -18px; }
.capability-grid { display: grid; grid-template-columns: repeat(4,1fr); border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: var(--shadow); overflow: hidden; }
.capability { min-height: 170px; padding: 28px 24px; border-right: 1px solid var(--line); }
.capability:last-child { border-right: 0; }
.capability b { display: block; margin-bottom: 8px; color: var(--ink); font-size: 18px; }
.capability p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.category-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.category-card { min-height: 220px; padding: 26px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.category-card:hover { transform: translateY(-4px); border-color: #b9d4f6; box-shadow: var(--shadow-soft); }
.category-card.featured { grid-column: span 2; min-height: 250px; background: linear-gradient(145deg, var(--blue), var(--blue-deep)); }
.category-card.wide { grid-column: span 2; background: linear-gradient(145deg, #fff, var(--blue-faint)); }
.category-card .number { margin-bottom: auto; color: #9bb4d2; font-size: 13px; font-weight: 900; }
.category-card h3 { margin-top: 38px; }
.category-card p { color: var(--muted); font-size: 14px; }
.category-card.featured h3, .category-card.featured p, .category-card.featured .text-link { color: #fff; }
.category-card.featured .number { color: rgba(255,255,255,.6); }
.split-feature { display: grid; grid-template-columns: .86fr 1.14fr; gap: 48px; align-items: center; }
.visual-panel { min-height: 500px; padding: 28px; display: grid; place-items: center; border-radius: var(--radius-xl); background: linear-gradient(145deg, #dbeaff, #f9fcff); }
.visual-panel img { max-height: 440px; object-fit: contain; }
.content-panel { padding: 38px; border: 1px solid rgba(220,230,242,.85); border-radius: var(--radius-xl); background: rgba(255,255,255,.9); box-shadow: var(--shadow-soft); }
.check-list { margin: 24px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px 18px; list-style: none; }
.check-list li { position: relative; padding-left: 29px; color: #34445c; }
.check-list li::before { content: '✓'; position: absolute; left: 0; top: 2px; width: 21px; height: 21px; display: grid; place-items: center; border-radius: 50%; background: var(--blue-soft); color: var(--blue-deep); font-size: 12px; font-weight: 900; }
.offset-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; align-items: start; }
.offset-card { padding: 38px; border-radius: var(--radius-xl); background: #fff; box-shadow: var(--shadow-soft); }
.offset-card:nth-child(2) { margin-top: 70px; background: linear-gradient(145deg, #f8fbff, #e9f3ff); }
.fact-list { margin: 22px 0 0; padding: 0; list-style: none; }
.fact-list li { padding: 12px 0; border-bottom: 1px solid var(--line); display: flex; gap: 12px; }
.fact-list li:last-child { border-bottom: 0; }
.fact-list b { color: var(--blue-deep); }
.feature-pair { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; }
.feature-block { padding: 40px; border-radius: var(--radius-xl); background: linear-gradient(145deg, #fff, var(--blue-faint)); border: 1px solid var(--line); }
.feature-block.alt { margin-top: 55px; background: #fff; }
.feature-image { min-height: 250px; margin-bottom: 28px; display: grid; place-items: center; border-radius: 20px; background: #eaf3ff; overflow: hidden; }
.feature-image img { max-height: 245px; object-fit: contain; }
.security-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: center; }
.security-points { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; }
.security-point { padding: 18px; border: 1px solid rgba(255,255,255,.16); border-radius: 15px; background: rgba(255,255,255,.08); color: rgba(255,255,255,.84); }
.security-point b { display: block; margin-bottom: 4px; color: #fff; }
.media-split { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: center; }
.media-frame { min-height: 430px; padding: 28px; display: grid; place-items: center; border-radius: var(--radius-xl); background: var(--blue-soft); }
.media-frame img { max-height: 380px; object-fit: contain; }
.swap-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 42px; align-items: center; }
.swap-card { padding: 36px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: #fff; box-shadow: var(--shadow-soft); }
.number-list { margin: 0; padding: 0; counter-reset: item; list-style: none; }
.number-list li { counter-increment: item; position: relative; padding: 13px 0 13px 50px; border-bottom: 1px solid var(--line); }
.number-list li::before { content: counter(item); position: absolute; left: 0; top: 11px; width: 31px; height: 31px; display: grid; place-items: center; border-radius: 10px; background: var(--blue-soft); color: var(--blue-deep); font-weight: 900; }
.number-list li:last-child { border-bottom: 0; }
.process { display: grid; grid-template-columns: repeat(6,1fr); gap: 14px; }
.process-step { position: relative; min-height: 255px; padding: 25px 20px; border: 1px solid var(--line); border-radius: 19px; background: #fff; }
.process-step::after { content: ''; position: absolute; top: 42px; left: calc(100% + 1px); width: 14px; border-top: 1px dashed #8fb9ec; }
.process-step:last-child::after { display: none; }
.process-step .step-no { width: 42px; height: 42px; margin-bottom: 30px; display: grid; place-items: center; border-radius: 14px; background: var(--blue); color: #fff; font-weight: 900; }
.process-step p { color: var(--muted); font-size: 13px; }
.eco-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; }
.eco-card { padding: 40px; border-radius: var(--radius-xl); background: #fff; border: 1px solid var(--line); }
.eco-card:nth-child(2) { background: linear-gradient(145deg, var(--blue), var(--blue-deep)); }
.eco-card:nth-child(2) h2, .eco-card:nth-child(2) p, .eco-card:nth-child(2) li { color: #fff; }
.timeline { position: relative; margin: 0; padding: 0; list-style: none; }
.timeline::before { content: ''; position: absolute; top: 8px; bottom: 8px; left: 97px; width: 1px; background: #bdd5f1; }
.timeline li { display: grid; grid-template-columns: 80px 1fr; gap: 34px; padding: 0 0 28px; }
.timeline time { color: var(--blue-deep); font-size: 13px; font-weight: 900; }
.timeline article { position: relative; padding: 22px 25px; border: 1px solid var(--line); border-radius: 17px; background: #fff; }
.timeline article::before { content: ''; position: absolute; width: 12px; height: 12px; left: -41px; top: 27px; border: 4px solid var(--blue-soft); border-radius: 50%; background: var(--blue); }
.timeline article p { margin: 7px 0 0; color: var(--muted); }
.review-track { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.review { padding: 28px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
.review:nth-child(2), .review:nth-child(5) { transform: translateY(18px); }
.review .quote { color: var(--blue); font-size: 35px; line-height: 1; }
.review p { margin: 10px 0 0; color: #536177; }
.faq-list { max-width: 920px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button { width: 100%; min-height: 72px; padding: 18px 5px; display: flex; justify-content: space-between; align-items: center; gap: 20px; border: 0; background: transparent; color: var(--ink); text-align: left; font-weight: 850; cursor: pointer; }
.faq-item button span:last-child { color: var(--blue); font-size: 25px; font-weight: 400; transition: transform .18s ease; }
.faq-item.is-open button span:last-child { transform: rotate(45deg); }
.faq-answer { padding: 0 5px 24px; color: var(--muted); }
.cta-panel { padding: 62px 30px; border-radius: 32px; background: radial-gradient(circle at 15% 15%, rgba(255,255,255,.2), transparent 28%), linear-gradient(135deg, var(--blue), var(--blue-deep)); color: #fff; text-align: center; box-shadow: 0 24px 60px rgba(24,103,214,.24); }
.cta-panel h2 { color: #fff; }
.cta-panel p { max-width: 720px; margin: 0 auto 25px; color: rgba(255,255,255,.82); }
.page-hero { padding: 86px 0 70px; background: radial-gradient(circle at 85% 5%, rgba(41,128,254,.13), transparent 30%), linear-gradient(180deg, #fff, #f5f9ff); }
.page-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.page-hero h1 { font-size: clamp(38px, 4.8vw, 64px); }
.page-hero-art { min-height: 360px; padding: 25px; display: grid; place-items: center; border-radius: 30px; background: linear-gradient(145deg, var(--blue-soft), #fff); border: 1px solid var(--line); }
.page-hero-art img { max-height: 330px; object-fit: contain; }
.page-hero-art.abstract { position: relative; overflow: hidden; }
.page-hero-art.abstract::before, .page-hero-art.abstract::after { content: ''; position: absolute; border-radius: 50%; }
.page-hero-art.abstract::before { width: 220px; height: 220px; background: var(--blue); opacity: .14; top: 35px; right: 30px; }
.page-hero-art.abstract::after { width: 130px; height: 130px; border: 26px solid #65a7ff; opacity: .18; left: 50px; bottom: 35px; }
.abstract-card { position: relative; z-index: 2; width: 72%; padding: 28px; border-radius: 22px; background: rgba(255,255,255,.88); box-shadow: var(--shadow); }
.abstract-card b { display: block; color: var(--ink); font-size: 21px; }
.abstract-card span { display: block; margin-top: 8px; color: var(--muted); }
.content-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.info-card { padding: 28px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.info-card p { color: var(--muted); }
.article-layout { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 50px; align-items: start; }
.prose h2 { margin-top: 45px; font-size: 32px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 28px; }
.prose p, .prose li { color: #4e5c70; }
.prose ul, .prose ol { padding-left: 23px; }
.prose li { margin: 9px 0; }
.side-nav { position: sticky; top: 100px; padding: 25px; border: 1px solid var(--line); border-radius: 20px; background: var(--blue-faint); }
.side-nav h2 { font-size: 18px; }
.side-nav a { display: block; padding: 9px 0; color: var(--muted); border-bottom: 1px solid var(--line); font-size: 14px; }
.side-nav a:last-child { border-bottom: 0; }
.alert-box { margin: 28px 0; padding: 24px; border-left: 4px solid var(--blue); border-radius: 0 16px 16px 0; background: var(--blue-soft); }
.alert-box strong { color: var(--ink); }
.data-table { width: 100%; margin: 25px 0; border-collapse: collapse; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.data-table th, .data-table td { padding: 15px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.data-table th { background: var(--blue-faint); color: var(--ink); }
.data-table tr:last-child td { border-bottom: 0; }
.contact-topics { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.contact-topic { padding: 30px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.site-footer { padding: 70px 0 0; background: var(--footer); color: rgba(255,255,255,.72); }
.footer-grid { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; display: grid; grid-template-columns: 1.6fr repeat(3,1fr); gap: 50px; }
.footer-logo { margin-bottom: 20px; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 420px; }
.footer-grid h2 { color: #fff; font-size: 16px; }
.footer-grid > div > a:not(.button):not(.brand) { display: block; padding: 6px 0; font-size: 14px; }
.footer-grid > div > a:hover { color: #fff; }
.footer-bottom { width: min(calc(100% - 40px), var(--container)); margin: 55px auto 0; padding: 25px 0 28px; display: flex; justify-content: space-between; gap: 28px; border-top: 1px solid rgba(255,255,255,.12); font-size: 13px; }
.footer-bottom p { margin: 0; }
.footer-bottom div { display: flex; gap: 18px; flex: 0 0 auto; }
@media (max-width: 1180px) {
  .desktop-nav { display: none; }
  .nav-shell { min-height: 70px; }
  .menu-button { display: inline-grid; }
  .more-wrap { display: none; }
  .hero-grid { grid-template-columns: 1fr .85fr; gap: 30px; }
  .process { grid-template-columns: repeat(3,1fr); }
  .process-step::after { display: none; }
}
@media (max-width: 900px) {
  .section { padding: 72px 0; }
  .hero { padding-top: 68px; }
  .hero-grid, .page-hero-grid, .split-feature, .security-grid, .media-split, .swap-grid { grid-template-columns: 1fr; }
  .hero-copy { text-align: center; }
  .hero-copy .lead { margin-right: auto; margin-left: auto; }
  .hero-copy .actions, .hero-copy .tag-list { justify-content: center; }
  .hero-visual { min-height: 480px; }
  .capability-grid { grid-template-columns: repeat(2,1fr); }
  .capability { border-bottom: 1px solid var(--line); }
  .capability:nth-child(2) { border-right: 0; }
  .capability:nth-child(3), .capability:nth-child(4) { border-bottom: 0; }
  .category-grid { grid-template-columns: repeat(2,1fr); }
  .category-card.featured, .category-card.wide { grid-column: span 1; }
  .offset-grid, .feature-pair, .eco-grid { grid-template-columns: 1fr; }
  .offset-card:nth-child(2), .feature-block.alt { margin-top: 0; }
  .content-panel { padding: 30px; }
  .review-track { grid-template-columns: repeat(2,1fr); }
  .review:nth-child(2), .review:nth-child(5) { transform: none; }
  .article-layout { grid-template-columns: 1fr; }
  .side-nav { position: static; order: -1; }
  .content-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 640px) {
  .container, .footer-grid, .footer-bottom { width: min(calc(100% - 28px), var(--container)); }
  .nav-shell { width: min(calc(100% - 20px), 1340px); gap: 10px; }
  .brand img { max-width: 124px; max-height: 38px; }
  .nav-actions { gap: 6px; }
  .nav-actions .button-small { min-height: 42px; padding: 9px 13px; font-size: 13px; }
  h1 { font-size: clamp(36px, 12vw, 52px); }
  h2 { font-size: 30px; }
  .section { padding: 58px 0; }
  .section-sm { padding: 50px 0; }
  .hero { padding-top: 52px; }
  .hero-visual { min-height: 410px; }
  .product-stage { min-height: 380px; padding: 20px; border-radius: 28px; }
  .product-stage img { max-height: 340px; }
  .float-note { position: static; min-width: 0; padding: 11px 12px; font-size: 12px; }
  .hero-visual { grid-template-columns: repeat(2,1fr); gap: 9px; align-content: center; }
  .product-stage { grid-column: 1 / -1; grid-row: 1; }
  .note-one, .note-two, .note-three { inset: auto; }
  .note-three { grid-column: 1 / -1; }
  .capability-grid, .category-grid, .check-list, .security-points, .review-track, .content-grid, .contact-topics { grid-template-columns: 1fr; }
  .capability { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line) !important; }
  .capability:last-child { border-bottom: 0 !important; }
  .category-card { min-height: 205px; }
  .visual-panel, .media-frame { min-height: 340px; padding: 20px; }
  .content-panel, .offset-card, .feature-block, .eco-card, .swap-card { padding: 26px 22px; }
  .process { grid-template-columns: 1fr; }
  .process-step { min-height: 0; }
  .timeline::before { left: 7px; }
  .timeline li { grid-template-columns: 1fr; gap: 8px; padding-left: 26px; }
  .timeline article::before { left: -25px; }
  .timeline time { padding-left: 0; }
  .page-hero { padding: 60px 0 50px; }
  .page-hero-art { min-height: 280px; }
  .abstract-card { width: 88%; padding: 22px; }
  .data-table { display: block; overflow-x: auto; white-space: normal; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; }
  .footer-bottom div { flex-wrap: wrap; }
}