: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;
    --shadow: 0 18px 50px rgba(26, 72, 128, .10);
    --shadow-soft: 0 10px 30px rgba(26, 72, 128, .07);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --container: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--white); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif; line-height: 1.72; overflow-x: hidden; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 10000; background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 10px; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.92); border-bottom: 1px solid rgba(220,230,242,.85); backdrop-filter: blur(18px); }
.header-inner { width: min(calc(100% - 40px), var(--container)); height: 76px; margin: 0 auto; display: flex; align-items: center; gap: 24px; }
.brand { flex: 0 0 auto; display: inline-flex; align-items: center; }
.brand img { object-fit: contain; }
.desktop-nav { flex: 1 1 auto; display: flex; align-items: center; justify-content: center; gap: 4px; white-space: nowrap; }
.nav-link { position: relative; display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px; color: #354156; font-size: 14px; font-weight: 700; border-radius: 12px; }
.nav-link:hover, .nav-link:focus-visible, .nav-link.is-active { color: var(--brand-deep); background: var(--brand-soft); outline: none; }
.nav-group { position: relative; }
.mega-menu { position: absolute; top: calc(100% + 12px); left: 50%; width: 650px; transform: translate(-50%, 10px); display: grid; grid-template-columns: 210px 1fr; gap: 20px; padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); opacity: 0; visibility: hidden; pointer-events: none; transition: .18s ease; }
.nav-group:hover .mega-menu, .nav-group:focus-within .mega-menu { opacity: 1; visibility: visible; pointer-events: auto; transform: translate(-50%, 0); }
.mega-intro { padding: 18px; color: #fff; border-radius: 17px; background: linear-gradient(145deg, var(--brand), var(--brand-deep)); }
.mega-intro strong { display: block; font-size: 18px; margin-bottom: 8px; }
.mega-intro span { display: block; font-size: 13px; line-height: 1.65; color: rgba(255,255,255,.86); }
.mega-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.mega-links a { padding: 11px 12px; border-radius: 13px; }
.mega-links a:hover, .mega-links a:focus-visible { background: var(--ice); outline: none; }
.mega-links strong, .mega-links span { display: block; }
.mega-links strong { color: var(--ink); font-size: 14px; }
.mega-links span { color: var(--muted); font-size: 12px; margin-top: 2px; }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.download-btn, .primary-button, .secondary-button, .text-button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; border-radius: 14px; font-weight: 800; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.download-btn, .primary-button { padding: 0 22px; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-deep)); box-shadow: 0 10px 24px rgba(41,128,254,.24); }
.download-btn:hover, .primary-button:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(41,128,254,.30); }
.secondary-button { padding: 0 20px; color: var(--brand-deep); background: var(--brand-soft); border: 1px solid #cfe2ff; }
.secondary-button:hover { background: #dcecff; transform: translateY(-2px); }
.text-button { min-height: 42px; color: var(--brand-deep); padding: 0; justify-content: flex-start; }
.text-button::after { content: "→"; margin-left: 7px; }
.header-download { min-height: 44px; padding: 0 18px; font-size: 14px; white-space: nowrap; }
.icon-button { width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 13px; background: #fff; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; cursor: pointer; }
.icon-button span { width: 18px; height: 2px; border-radius: 3px; background: var(--ink); }
.more-wrap { position: relative; }
.more-menu { position: absolute; top: calc(100% + 10px); right: 0; min-width: 170px; padding: 9px; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: var(--shadow-soft); opacity: 0; visibility: hidden; transform: translateY(8px); transition: .18s ease; }
.more-wrap:hover .more-menu, .more-wrap:focus-within .more-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.more-menu a { display: block; padding: 10px 12px; border-radius: 10px; color: var(--ink); font-size: 14px; font-weight: 700; }
.more-menu a:hover { background: var(--ice); color: var(--brand-deep); }
.mobile-menu-button { display: none; }
.menu-overlay { position: fixed; inset: 0; z-index: 1300; background: rgba(10,28,55,.46); opacity: 0; transition: opacity .22s ease; }
body.menu-open .menu-overlay { opacity: 1; }
.mobile-menu { position: fixed; top: 0; right: 0; z-index: 1400; width: min(90vw, 430px); height: 100dvh; background: #fff; box-shadow: -20px 0 50px rgba(14,37,67,.18); transform: translateX(105%); transition: transform .24s ease; overflow-y: auto; }
body.menu-open .mobile-menu { transform: translateX(0); }
.mobile-menu-head { min-height: 76px; padding: 14px 18px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.mobile-menu-close { width: 44px; height: 44px; border: 0; border-radius: 13px; background: var(--ice); color: var(--ink); font-size: 30px; cursor: pointer; }
.mobile-menu-body { padding: 18px; }
.mobile-menu-body details { border-bottom: 1px solid var(--line); }
.mobile-menu-body summary, .mobile-home { min-height: 52px; display: flex; align-items: center; color: var(--ink); font-weight: 800; cursor: pointer; list-style: none; }
.mobile-menu-body summary::-webkit-details-marker { display: none; }
.mobile-menu-body summary::after { content: "+"; margin-left: auto; color: var(--brand); font-size: 20px; }
.mobile-menu-body details[open] summary::after { content: "−"; }
.mobile-menu-body details a { min-height: 46px; margin: 2px 0 2px 12px; padding: 10px 14px; display: flex; align-items: center; border-radius: 12px; background: var(--ice); color: #3e4d63; }
.mobile-menu-download { width: 100%; margin-top: 20px; }
main { min-height: 60vh; }
.container { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; }
.section { padding: 92px 0; }
.section-sm { padding: 66px 0; }
.section-soft { background: var(--ice); }
.section-blue { background: linear-gradient(145deg, #eff6ff, #f8fbff); }
.section-title { max-width: 760px; margin-bottom: 38px; }
.section-title.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--brand-deep); font-size: 13px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 24px; height: 3px; border-radius: 3px; background: var(--brand); }
h1, h2, h3, h4 { margin: 0; color: var(--ink); line-height: 1.25; }
h1 { font-size: clamp(40px, 5.3vw, 68px); letter-spacing: -.035em; }
h2 { font-size: clamp(30px, 3.4vw, 46px); letter-spacing: -.025em; }
h3 { font-size: 21px; }
p { margin: 0; }
.lead { margin-top: 18px; font-size: 18px; color: #536176; }
.hero { position: relative; overflow: hidden; padding: 92px 0 72px; background: radial-gradient(circle at 84% 16%, rgba(41,128,254,.17), transparent 30%), linear-gradient(180deg, #f7fbff 0%, #fff 100%); }
.hero::before { content: ""; position: absolute; width: 460px; height: 460px; left: -230px; top: 60px; border-radius: 50%; border: 70px solid rgba(41,128,254,.035); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.14fr .86fr; align-items: center; gap: 60px; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy .lead { max-width: 720px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero-tags span { padding: 8px 12px; border: 1px solid #d7e7fb; border-radius: 999px; color: #3c5a7e; background: rgba(255,255,255,.78); font-size: 13px; font-weight: 800; }
.hero-visual { position: relative; min-height: 520px; display: flex; align-items: center; justify-content: center; }
.hero-device { width: min(100%, 400px); position: relative; z-index: 2; filter: drop-shadow(0 30px 45px rgba(34,75,129,.18)); }
.float-note { position: absolute; z-index: 3; min-width: 175px; padding: 14px 16px; border: 1px solid rgba(255,255,255,.8); border-radius: 16px; background: rgba(255,255,255,.88); box-shadow: var(--shadow-soft); backdrop-filter: blur(14px); color: var(--ink); font-size: 13px; font-weight: 800; }
.float-note small { display: block; color: var(--muted); font-weight: 600; margin-top: 3px; }
.float-one { left: 0; top: 75px; }.float-two { right: 0; top: 215px; }.float-three { left: 20px; bottom: 70px; }
.capability-bar { position: relative; margin-top: -20px; z-index: 4; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow-soft); overflow: hidden; }
.capability-item { padding: 24px; }
.capability-item + .capability-item { border-left: 1px solid var(--line); }
.capability-item h3 { font-size: 17px; margin-bottom: 8px; }
.capability-item p { color: var(--muted); font-size: 14px; }
.category-stack { display: grid; gap: 16px; }
.category-row { display: grid; gap: 16px; }
.category-row.row-one { grid-template-columns: 2fr 1fr 1fr 1fr; }
.category-row.row-two { grid-template-columns: repeat(3, 1fr); }
.category-row.row-three { grid-template-columns: 1fr 1.45fr 1.45fr; }
.category-card { min-height: 220px; padding: 26px; position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: var(--shadow-soft); display: flex; flex-direction: column; }
.category-card.featured { min-height: 250px; color: #fff; border: 0; background: linear-gradient(145deg, var(--brand), var(--brand-deep)); }
.category-card.featured h3, .category-card.featured p, .category-card.featured .text-button { color: #fff; }
.category-card:nth-child(even):not(.featured) { background: var(--ice); }
.category-number { width: 38px; height: 38px; margin-bottom: 22px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; color: var(--brand-deep); background: var(--brand-soft); font-size: 13px; font-weight: 900; }
.category-card.featured .category-number { color: #fff; background: rgba(255,255,255,.18); }
.category-card p { margin: 10px 0 14px; color: var(--muted); font-size: 14px; }
.category-card .text-button { margin-top: auto; }
.feature-split { display: grid; grid-template-columns: .92fr 1.08fr; gap: 62px; align-items: center; }
.feature-split.reverse { grid-template-columns: 1.08fr .92fr; }
.feature-image-wrap { min-height: 470px; border-radius: var(--radius-lg); background: linear-gradient(145deg, #dfeeff, #f7fbff); display: flex; align-items: center; justify-content: center; padding: 38px; position: relative; overflow: hidden; }
.feature-image-wrap::after { content: ""; position: absolute; width: 260px; height: 260px; border-radius: 50%; border: 45px solid rgba(41,128,254,.08); right: -70px; bottom: -90px; }
.feature-image-wrap img { max-height: 420px; object-fit: contain; position: relative; z-index: 1; filter: drop-shadow(0 22px 35px rgba(35,78,132,.14)); }
.content-panel { padding: 12px 0; }
.content-panel .lead { font-size: 17px; }
.check-list, .link-list, .plain-list { margin: 26px 0 0; padding: 0; list-style: none; }
.check-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.check-list li { position: relative; padding: 13px 14px 13px 40px; border: 1px solid var(--line); border-radius: 14px; background: #fff; color: #40506a; font-size: 14px; font-weight: 700; }
.check-list li::before { content: "✓"; position: absolute; left: 14px; top: 12px; color: var(--brand); font-weight: 900; }
.inline-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.offset-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; align-items: start; }
.offset-card { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-soft); }
.offset-card:nth-child(2) { margin-top: 60px; background: linear-gradient(145deg, #eef6ff, #fff); }
.offset-card p { margin-top: 16px; }
.topic-grid { display: grid; grid-template-columns: 1.12fr .88fr; gap: 22px; align-items: stretch; }
.topic-card { border-radius: var(--radius-lg); padding: 38px; overflow: hidden; }
.topic-card.large { min-height: 460px; color: #fff; background: linear-gradient(145deg, #1b6bd7, #2980FE); }
.topic-card.large h2, .topic-card.large h3, .topic-card.large p, .topic-card.large .text-button { color: #fff; }
.topic-card.soft { min-height: 380px; background: var(--brand-soft); }
.topic-card img { max-height: 260px; margin: 26px auto 0; object-fit: contain; }
.topic-card .plain-list { display: grid; gap: 10px; }
.topic-card .plain-list li { padding-left: 18px; position: relative; }
.topic-card .plain-list li::before { content: "•"; position: absolute; left: 0; color: currentColor; }
.security-band { color: #fff; background: linear-gradient(135deg, #102d54, #185b9f 58%, #2980FE); }
.security-band h2, .security-band h3, .security-band p { color: #fff; }
.security-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 50px; 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: 16px; background: rgba(255,255,255,.08); }
.security-point strong { display: block; margin-bottom: 5px; }
.security-point span { color: rgba(255,255,255,.74); font-size: 13px; }
.swap-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 46px; align-items: center; }
.swap-visual { padding: 32px; border-radius: var(--radius-lg); background: linear-gradient(145deg, #e9f3ff, #fff); }
.swap-visual img { max-height: 340px; margin: 0 auto; object-fit: contain; }
.audit-list { display: grid; gap: 10px; margin-top: 24px; }
.audit-item { display: grid; grid-template-columns: 38px 1fr; gap: 12px; align-items: center; padding: 13px 15px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.audit-item span:first-child { width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center; border-radius: 10px; color: var(--brand-deep); background: var(--brand-soft); font-weight: 900; }
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; position: relative; }
.step { position: relative; padding: 24px 18px; border: 1px solid var(--line); border-radius: 19px; background: #fff; }
.step::after { content: ""; position: absolute; right: -13px; top: 37px; width: 13px; height: 2px; background: #b8d5f8; }
.step:last-child::after { display: none; }
.step-number { width: 40px; height: 40px; margin-bottom: 18px; display: inline-flex; align-items: center; justify-content: center; border-radius: 13px; color: #fff; background: var(--brand); font-weight: 900; }
.step h3 { font-size: 16px; }
.step p { margin-top: 10px; color: var(--muted); font-size: 13px; }
.step a { display: inline-flex; margin-top: 12px; color: var(--brand-deep); font-size: 13px; font-weight: 800; }
.dual-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.dual-panel { padding: 38px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow-soft); }
.dual-panel.blue { background: linear-gradient(145deg, #eaf3ff, #fafdff); }
.timeline { position: relative; display: grid; gap: 14px; }
.timeline::before { content: ""; position: absolute; left: 18px; top: 8px; bottom: 8px; width: 2px; background: #cfe2fb; }
.timeline-item { position: relative; padding: 18px 20px 18px 58px; border: 1px solid var(--line); border-radius: 17px; background: #fff; }
.timeline-item::before { content: ""; position: absolute; left: 11px; top: 23px; width: 16px; height: 16px; border: 5px solid #dcecff; border-radius: 50%; background: var(--brand); }
.timeline-item small { color: var(--brand-deep); font-weight: 800; }
.timeline-item h3 { font-size: 17px; margin: 3px 0 6px; }
.timeline-item p { color: var(--muted); font-size: 14px; }
.feedback-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feedback-item { padding: 26px; border-radius: 20px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow-soft); }
.feedback-item:nth-child(2n) { transform: translateY(18px); background: var(--ice); }
.feedback-item strong { display: block; color: var(--brand-deep); margin-bottom: 8px; }
.feedback-item p { font-size: 14px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: 17px; background: #fff; overflow: hidden; }
.faq-question { width: 100%; min-height: 62px; padding: 17px 20px; border: 0; background: transparent; color: var(--ink); text-align: left; font-weight: 800; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.faq-question::after { content: "+"; color: var(--brand); font-size: 22px; }
.faq-question[aria-expanded="true"]::after { content: "−"; }
.faq-answer { padding: 0 20px 20px; color: var(--text); }
.download-cta { text-align: center; padding: 64px 36px; border-radius: 30px; color: #fff; background: radial-gradient(circle at 15% 20%, rgba(255,255,255,.2), transparent 25%), linear-gradient(135deg, #1767D6, #2980FE); box-shadow: 0 25px 60px rgba(32,104,205,.24); }
.download-cta h2, .download-cta p { color: #fff; }
.download-cta p { max-width: 720px; margin: 15px auto 0; color: rgba(255,255,255,.82); }
.download-cta .download-btn { margin-top: 25px; color: var(--brand-deep); background: #fff; box-shadow: none; }
.page-hero { padding: 84px 0 70px; background: radial-gradient(circle at 85% 0%, rgba(41,128,254,.15), transparent 32%), linear-gradient(180deg, #f4f9ff, #fff); }
.page-hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 52px; align-items: center; }
.page-hero h1 { font-size: clamp(38px, 4.8vw, 60px); }
.page-hero p { margin-top: 18px; max-width: 760px; font-size: 18px; }
.page-hero-visual { min-height: 350px; border-radius: var(--radius-lg); background: linear-gradient(145deg, #e3f0ff, #f9fcff); padding: 32px; display: flex; align-items: center; justify-content: center; }
.page-hero-visual img { max-height: 330px; object-fit: contain; filter: drop-shadow(0 20px 28px rgba(32,78,136,.14)); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; color: var(--muted); font-size: 13px; font-weight: 700; }
.breadcrumbs a { color: var(--brand-deep); }
.content-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 30px; align-items: start; }
.prose { font-size: 16px; }
.prose h2 { margin: 36px 0 15px; font-size: 31px; }
.prose h3 { margin: 26px 0 10px; }
.prose p + p { margin-top: 14px; }
.prose ul, .prose ol { margin: 16px 0 0; padding-left: 22px; }
.prose li + li { margin-top: 8px; }
.side-card { position: sticky; top: 98px; padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: var(--ice); }
.side-card h2 { font-size: 22px; }
.side-card p { margin-top: 10px; font-size: 14px; }
.side-card .download-btn { width: 100%; margin-top: 20px; }
.side-links { display: grid; gap: 8px; margin-top: 18px; }
.side-links a { padding: 10px 12px; border-radius: 11px; color: var(--brand-deep); background: #fff; font-weight: 800; font-size: 14px; }
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.info-card { padding: 28px; border: 1px solid var(--line); border-radius: 21px; background: #fff; box-shadow: var(--shadow-soft); }
.info-card:nth-child(2) { background: var(--ice); }
.info-card h3 { margin-bottom: 10px; }
.info-card p { font-size: 14px; color: var(--muted); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.process-card { padding: 26px; border-radius: 20px; background: var(--ice); border: 1px solid var(--line); }
.process-card span { display: inline-flex; width: 40px; height: 40px; align-items: center; justify-content: center; margin-bottom: 16px; border-radius: 13px; color: #fff; background: var(--brand); font-weight: 900; }
.process-card p { margin-top: 9px; color: var(--muted); font-size: 14px; }
.notice-box { padding: 26px 28px; border-left: 5px solid var(--brand); border-radius: 0 18px 18px 0; background: var(--brand-soft); }
.notice-box strong { display: block; color: var(--ink); font-size: 18px; margin-bottom: 7px; }
.compare-table { width: 100%; border-collapse: separate; border-spacing: 0; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; background: #fff; }
.compare-table th, .compare-table td { padding: 15px 17px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.compare-table th { color: var(--ink); background: var(--ice); }
.compare-table tr:last-child td { border-bottom: 0; }
.policy-section { padding: 28px 0; border-bottom: 1px solid var(--line); }
.policy-section:last-child { border-bottom: 0; }
.policy-section h2 { font-size: 28px; margin-bottom: 12px; }
.site-footer { color: rgba(255,255,255,.76); background: var(--footer); }
.footer-main { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; padding: 68px 0 48px; display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 38px; }
.footer-logo { filter: brightness(0) invert(1); margin-bottom: 18px; }
.footer-brand p { max-width: 440px; font-size: 14px; }
.footer-column h2 { color: #fff; font-size: 16px; margin-bottom: 15px; }
.footer-column a { display: block; padding: 5px 0; font-size: 14px; }
.footer-column a:hover, .footer-bottom a:hover { color: #fff; }
.footer-bottom { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; min-height: 72px; padding: 18px 0; border-top: 1px solid rgba(255,255,255,.12); display: flex; align-items: center; justify-content: space-between; gap: 24px; font-size: 13px; }
.footer-bottom div { display: flex; gap: 18px; white-space: nowrap; }
@media (max-width: 1120px) {
    .desktop-nav { display: none; }
    .header-inner { gap: 14px; }
    .header-actions { margin-left: auto; }
    .more-wrap { display: none; }
    .mobile-menu-button { display: inline-flex; }
    .hero-grid, .page-hero-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
    .steps { grid-template-columns: repeat(3, 1fr); }
    .step:nth-child(3)::after { display: none; }
    .footer-main { grid-template-columns: 1.4fr repeat(3, 1fr); gap: 24px; }
}
@media (max-width: 900px) {
    .section { padding: 74px 0; }
    .hero { padding-top: 70px; }
    .hero-grid, .page-hero-grid, .feature-split, .feature-split.reverse, .security-grid, .swap-grid, .content-grid { grid-template-columns: 1fr; }
    .hero-copy { text-align: center; }
    .hero-copy .lead { margin-left: auto; margin-right: auto; }
    .hero-actions, .hero-tags { justify-content: center; }
    .hero-visual { min-height: 460px; }
    .capability-grid { grid-template-columns: repeat(2, 1fr); }
    .capability-item:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
    .capability-item:nth-child(4) { border-top: 1px solid var(--line); }
    .category-row.row-one, .category-row.row-two, .category-row.row-three { grid-template-columns: repeat(2, 1fr); }
    .topic-grid, .offset-grid, .dual-grid { grid-template-columns: 1fr; }
    .offset-card:nth-child(2) { margin-top: 0; }
    .info-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .feedback-grid { grid-template-columns: repeat(2, 1fr); }
    .feedback-item:nth-child(2n) { transform: none; }
    .side-card { position: static; }
    .page-hero-visual { min-height: 300px; }
    .footer-main { grid-template-columns: repeat(2, 1fr); }
    .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
    .container, .header-inner, .footer-main, .footer-bottom { width: min(calc(100% - 28px), var(--container)); }
    .header-inner { height: 68px; }
    .brand img { max-width: 132px; }
    .header-download { min-height: 42px; padding: 0 13px; font-size: 13px; }
    .icon-button { width: 42px; height: 42px; }
    .section { padding: 60px 0; }
    .section-sm { padding: 50px 0; }
    h1 { font-size: 39px; }
    h2 { font-size: 31px; }
    .lead, .page-hero p { font-size: 16px; }
    .hero { padding: 58px 0 52px; }
    .hero-visual { min-height: 390px; margin-top: 10px; }
    .hero-device { width: 270px; }
    .float-note { min-width: 138px; max-width: 155px; padding: 11px 12px; font-size: 11px; }
    .float-one { left: 0; top: 35px; }.float-two { right: 0; top: 170px; }.float-three { left: 8px; bottom: 38px; }
    .capability-bar { margin-top: 0; padding-top: 18px; }
    .capability-grid, .category-row.row-one, .category-row.row-two, .category-row.row-three, .check-list, .security-points, .steps, .info-grid, .process-grid, .feedback-grid { grid-template-columns: 1fr; }
    .capability-item + .capability-item { border-left: 0; border-top: 1px solid var(--line); }
    .category-card, .category-card.featured { min-height: 210px; }
    .feature-image-wrap { min-height: 350px; padding: 24px; }
    .feature-image-wrap img { max-height: 310px; }
    .topic-card, .offset-card, .dual-panel { padding: 28px; }
    .topic-card.large { min-height: 390px; }
    .step::after { display: none; }
    .download-cta { padding: 48px 22px; }
    .page-hero { padding: 58px 0 50px; }
    .page-hero-visual { min-height: 260px; padding: 22px; }
    .compare-table { display: block; overflow-x: auto; }
    .footer-main { grid-template-columns: 1fr; padding: 52px 0 34px; }
    .footer-brand { grid-column: auto; }
    .footer-bottom { align-items: flex-start; flex-direction: column; }
    .footer-bottom div { flex-wrap: wrap; white-space: normal; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}