:root {
  --brand: #2980FE;
  --brand-dark: #1767D6;
  --brand-soft: #EAF3FF;
  --ice: #F5F8FD;
  --surface: #FFFFFF;
  --surface-muted: #F7F9FC;
  --text: #172033;
  --body: #465266;
  --muted: #718096;
  --line: #DCE6F2;
  --footer: #10233F;
  --shadow-sm: 0 12px 30px rgba(23, 103, 214, .08);
  --shadow-md: 0 24px 70px rgba(23, 103, 214, .14);
  --radius-sm: 16px;
  --radius-md: 22px;
  --radius-lg: 28px;
  --container: min(1180px, calc(100% - 40px));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { margin: 0; min-width: 320px; overflow-x: hidden; color: var(--body); background: #fff; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", sans-serif; line-height: 1.72; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
.container { width: var(--container); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 9999; padding: 10px 16px; color: #fff; background: var(--brand-dark); border-radius: 10px; }
.skip-link:focus { top: 16px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--brand-dark); font-size: .82rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--brand); border-radius: 999px; }
.section-head { max-width: 760px; margin-bottom: 42px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head h2, .content-copy h2, .site-download-cta h2 { margin: 12px 0 14px; color: var(--text); font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.15; letter-spacing: -.035em; }
.section-head p, .content-copy p { margin: 0; font-size: 1.04rem; }
.section-pad { padding: 104px 0; }
.section-soft { background: var(--ice); }
.section-blue { background: linear-gradient(135deg, #f7fbff 0%, #eaf3ff 52%, #f7f9fc 100%); }
.text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 18px; color: var(--brand-dark); font-weight: 800; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.download-btn, .primary-btn, .secondary-btn { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 12px 22px; border-radius: 14px; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.download-btn, .primary-btn { color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-dark)); box-shadow: 0 12px 28px rgba(41, 128, 254, .23); }
.download-btn:hover, .primary-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 36px rgba(41, 128, 254, .3); }
.secondary-btn { color: var(--brand-dark); background: #fff; border: 1px solid var(--line); }
.secondary-btn:hover { transform: translateY(-2px); border-color: #a9c8f5; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.92); border-bottom: 1px solid rgba(220,230,242,.8); backdrop-filter: blur(18px); }
.header-shell { width: min(1320px, calc(100% - 32px)); min-height: 76px; margin-inline: auto; display: flex; align-items: center; gap: 28px; }
.brand-link { flex: 0 0 auto; display: flex; align-items: center; }
.brand-logo { width: 176px; max-height: 42px; object-fit: contain; object-position: left center; }
.desktop-nav { flex: 1 1 auto; display: flex; justify-content: center; align-items: stretch; gap: 2px; min-width: 0; }
.nav-link { position: relative; display: inline-flex; align-items: center; min-height: 76px; padding: 0 12px; color: #38465b; font-size: .94rem; font-weight: 750; white-space: nowrap; }
.nav-link::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 0; height: 3px; background: var(--brand); border-radius: 3px 3px 0 0; transform: scaleX(0); transition: transform .2s ease; }
.nav-link:hover, .nav-link:focus-visible, .nav-link.is-active { color: var(--brand-dark); }
.nav-link:hover::after, .nav-link:focus-visible::after, .nav-link.is-active::after { transform: scaleX(1); }
.nav-group { position: relative; }
.mega-menu { position: absolute; top: calc(100% - 1px); left: 50%; width: min(680px, 88vw); padding: 20px; display: grid; grid-template-columns: 190px 1fr; gap: 18px; background: rgba(255,255,255,.98); border: 1px solid var(--line); border-radius: 0 0 22px 22px; box-shadow: var(--shadow-md); opacity: 0; visibility: hidden; transform: translate(-50%, 10px); transition: opacity .18s ease, transform .18s ease, visibility .18s; }
.nav-group:hover .mega-menu, .nav-group:focus-within .mega-menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.mega-intro { padding: 20px; color: #fff; background: linear-gradient(145deg, var(--brand), var(--brand-dark)); border-radius: 18px; }
.mega-intro span { display: block; margin-bottom: 10px; font-size: 1.12rem; font-weight: 850; }
.mega-intro p { margin: 0; font-size: .88rem; line-height: 1.65; color: rgba(255,255,255,.86); }
.mega-links { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px; }
.mega-links a { padding: 13px 14px; border-radius: 13px; }
.mega-links a:hover, .mega-links a:focus-visible { background: var(--brand-soft); }
.mega-links strong, .mega-links small { display: block; }
.mega-links strong { color: var(--text); font-size: .93rem; }
.mega-links small { margin-top: 4px; color: var(--muted); font-size: .78rem; }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.header-download { min-height: 44px; padding: 9px 18px; border-radius: 12px; white-space: nowrap; }
.menu-toggle { display: none; width: 46px; height: 46px; padding: 0; border: 1px solid var(--line); border-radius: 13px; background: #fff; cursor: pointer; }
.menu-toggle span { display: block; width: 20px; height: 2px; margin: 4px auto; background: var(--text); border-radius: 999px; }
.menu-backdrop { position: fixed; inset: 0; z-index: 1100; background: rgba(16,35,63,.4); opacity: 0; transition: opacity .22s ease; }
.menu-backdrop.is-visible { opacity: 1; }
.mobile-menu { position: fixed; top: 0; right: 0; z-index: 1200; width: min(430px, 94vw); height: 100dvh; background: #fff; box-shadow: -30px 0 90px rgba(16,35,63,.2); transform: translateX(105%); transition: transform .24s ease; }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu-head { height: 76px; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.menu-close { width: 46px; height: 46px; border: 0; border-radius: 14px; background: var(--surface-muted); font-size: 1.85rem; cursor: pointer; }
.mobile-menu-scroll { height: calc(100dvh - 76px); padding: 18px 20px 36px; overflow-y: auto; }
.mobile-menu details { border-bottom: 1px solid var(--line); }
.mobile-menu summary, .mobile-home { min-height: 54px; display: flex; align-items: center; color: var(--text); font-weight: 850; cursor: pointer; list-style: none; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu summary::after { content: "+"; margin-left: auto; color: var(--brand); font-size: 1.35rem; }
.mobile-menu details[open] summary::after { content: "−"; }
.mobile-menu details div { padding: 0 0 12px 12px; display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.mobile-menu details a { min-height: 44px; display: flex; align-items: center; padding: 8px 10px; color: var(--body); background: var(--surface-muted); border-radius: 10px; font-size: .92rem; }
.mobile-download { width: 100%; margin-top: 24px; }

.hero { position: relative; padding: 78px 0 82px; overflow: hidden; background: radial-gradient(circle at 85% 20%, rgba(41,128,254,.18), transparent 34%), linear-gradient(180deg, #fbfdff 0%, #f2f7ff 100%); }
.hero::before { content: ""; position: absolute; width: 440px; height: 440px; left: -220px; top: 80px; border: 1px solid rgba(41,128,254,.14); border-radius: 50%; box-shadow: 0 0 0 70px rgba(41,128,254,.025), 0 0 0 140px rgba(41,128,254,.018); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.12fr .88fr; gap: 60px; align-items: center; }
.hero-copy h1 { max-width: 680px; margin: 16px 0 20px; color: var(--text); font-size: clamp(3rem, 6vw, 5.5rem); line-height: .98; letter-spacing: -.055em; }
.hero-copy .lead { max-width: 650px; margin: 0; font-size: clamp(1.06rem, 2vw, 1.22rem); color: #52617a; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 28px; }
.hero-tags span { padding: 8px 13px; color: var(--brand-dark); background: rgba(255,255,255,.82); border: 1px solid #cfe2fb; border-radius: 999px; font-size: .86rem; font-weight: 800; }
.hero-visual { position: relative; min-height: 520px; display: grid; place-items: center; }
.hero-product { width: min(430px, 88%); filter: drop-shadow(0 34px 45px rgba(23,103,214,.18)); }
.float-note { position: absolute; max-width: 190px; padding: 14px 16px; color: var(--text); background: rgba(255,255,255,.92); border: 1px solid rgba(220,230,242,.9); border-radius: 16px; box-shadow: var(--shadow-sm); font-size: .86rem; font-weight: 800; backdrop-filter: blur(12px); }
.float-note::before { content: ""; display: inline-block; width: 9px; height: 9px; margin-right: 8px; background: var(--brand); border-radius: 50%; box-shadow: 0 0 0 5px var(--brand-soft); }
.float-note.one { top: 80px; left: 0; }
.float-note.two { right: -12px; top: 190px; }
.float-note.three { left: 28px; bottom: 72px; }
.capability-strip { position: relative; margin-top: -34px; z-index: 4; }
.capability-grid { display: grid; grid-template-columns: repeat(4,1fr); background: #fff; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow-md); overflow: hidden; }
.capability-item { padding: 26px 24px; }
.capability-item + .capability-item { border-left: 1px solid var(--line); }
.capability-item span { display: block; margin-bottom: 7px; color: var(--text); font-weight: 850; }
.capability-item p { margin: 0; font-size: .88rem; }
.category-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.category-card { min-height: 230px; padding: 28px; display: flex; flex-direction: column; justify-content: space-between; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.category-card:hover { transform: translateY(-5px); border-color: #b9d5f8; box-shadow: var(--shadow-sm); }
.category-card.featured { grid-column: span 2; color: #fff; background: linear-gradient(135deg, var(--brand), #4f9cff); border-color: transparent; }
.category-card.wide { grid-column: span 2; background: linear-gradient(135deg, #fff, var(--brand-soft)); }
.category-card .category-index { width: 42px; height: 42px; display: grid; place-items: center; color: var(--brand-dark); background: var(--brand-soft); border-radius: 13px; font-weight: 900; }
.category-card.featured .category-index { color: #fff; background: rgba(255,255,255,.18); }
.category-card h3 { margin: 22px 0 8px; color: var(--text); font-size: 1.35rem; }
.category-card.featured h3, .category-card.featured p, .category-card.featured .text-link { color: #fff; }
.category-card p { margin: 0; font-size: .94rem; }
.split-feature { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: center; }
.split-feature.reverse { grid-template-columns: 1.1fr .9fr; }
.feature-visual { position: relative; min-height: 520px; display: grid; place-items: center; padding: 42px; background: linear-gradient(145deg, #ddebff, #f7fbff); border: 1px solid #cfe2fb; border-radius: var(--radius-lg); overflow: hidden; }
.feature-visual::after { content: ""; position: absolute; width: 260px; height: 260px; right: -70px; bottom: -70px; border: 46px solid rgba(41,128,254,.08); border-radius: 50%; }
.feature-visual img { position: relative; z-index: 1; max-height: 430px; object-fit: contain; }
.content-panel { padding: 44px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.check-list, .plain-list { margin: 26px 0 0; padding: 0; list-style: none; }
.check-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.check-list li, .plain-list li { position: relative; padding-left: 30px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 21px; height: 21px; display: grid; place-items: center; color: var(--brand-dark); background: var(--brand-soft); border-radius: 50%; font-size: .75rem; font-weight: 900; }
.plain-list { display: grid; gap: 10px; }
.plain-list li::before { content: ""; position: absolute; left: 4px; top: .73em; width: 9px; height: 9px; background: var(--brand); border-radius: 50%; box-shadow: 0 0 0 5px var(--brand-soft); }
.dual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.topic-card { padding: 40px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; }
.topic-card.offset { margin-top: 52px; background: linear-gradient(145deg, #fff, #f2f7ff); }
.topic-card .topic-number { color: var(--brand); font-weight: 900; letter-spacing: .08em; }
.topic-card h3 { margin: 12px 0; color: var(--text); font-size: 1.75rem; }
.media-topic { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; align-items: stretch; }
.media-topic-card { padding: 46px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); }
.media-topic-card.large { min-height: 520px; background: linear-gradient(145deg, #f4f9ff, #fff); }
.media-topic-card h3 { margin: 14px 0; color: var(--text); font-size: 2rem; }
.media-topic-image { min-height: 520px; padding: 28px; display: grid; place-items: center; background: linear-gradient(145deg, #1d70df, #4c9bff); border-radius: var(--radius-lg); overflow: hidden; }
.media-topic-image img { max-height: 440px; object-fit: contain; filter: drop-shadow(0 22px 30px rgba(16,35,63,.2)); }
.security-band { position: relative; overflow: hidden; color: rgba(255,255,255,.82); background: linear-gradient(135deg, #102f59, #1767D6 68%, #2980FE); }
.security-band::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 80% 25%, rgba(255,255,255,.16), transparent 30%); }
.security-grid { position: relative; display: grid; grid-template-columns: .9fr 1.1fr; gap: 52px; align-items: start; }
.security-band h2, .security-band h3 { color: #fff; }
.security-band .eyebrow { color: #bcdcff; }
.security-band .eyebrow::before { background: #fff; }
.security-notice { padding: 34px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2); border-radius: 24px; backdrop-filter: blur(14px); }
.security-notice strong { display: block; margin-bottom: 14px; color: #fff; font-size: 1.35rem; }
.security-points { display: grid; grid-template-columns: repeat(2,1fr); gap: 13px; }
.security-points div { padding: 18px; background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.14); border-radius: 16px; }
.security-points span { display: block; color: #fff; font-weight: 850; }
.security-points p { margin: 6px 0 0; font-size: .88rem; }
.swap-grid { display: grid; grid-template-columns: .86fr 1.14fr; gap: 30px; }
.swap-intro { padding: 36px; background: linear-gradient(145deg, #eaf3ff, #fff); border: 1px solid #cfe2fb; border-radius: var(--radius-lg); }
.swap-intro img { max-height: 360px; margin: 24px auto 0; object-fit: contain; }
.swap-checks { padding: 42px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.check-table { margin-top: 24px; border-top: 1px solid var(--line); }
.check-row { display: grid; grid-template-columns: 42px 1fr; gap: 14px; align-items: start; padding: 15px 0; border-bottom: 1px solid var(--line); }
.check-row span { width: 34px; height: 34px; display: grid; place-items: center; color: var(--brand-dark); background: var(--brand-soft); border-radius: 11px; font-size: .8rem; font-weight: 900; }
.check-row strong { display: block; color: var(--text); }
.check-row p { margin: 2px 0 0; font-size: .9rem; }
.steps { display: grid; grid-template-columns: repeat(6, minmax(180px,1fr)); gap: 14px; overflow-x: auto; padding-bottom: 10px; scrollbar-width: thin; }
.step { min-width: 190px; padding: 26px 22px; background: #fff; border: 1px solid var(--line); border-radius: 20px; }
.step-no { width: 42px; height: 42px; display: grid; place-items: center; color: #fff; background: var(--brand); border-radius: 14px; font-weight: 900; }
.step h3 { margin: 18px 0 8px; color: var(--text); font-size: 1.1rem; }
.step p { margin: 0; font-size: .88rem; }
.ecosystem-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; }
.ecosystem-card { padding: 44px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; }
.ecosystem-card:first-child { background: linear-gradient(145deg, #fff, #edf5ff); }
.ecosystem-card h3 { margin: 12px 0; color: var(--text); font-size: 2rem; }
.timeline { position: relative; margin-top: 14px; }
.timeline::before { content: ""; position: absolute; left: 16px; top: 14px; bottom: 14px; width: 2px; background: #cfe2fb; }
.timeline-item { position: relative; padding: 0 0 28px 56px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before { content: ""; position: absolute; left: 8px; top: 8px; width: 18px; height: 18px; background: #fff; border: 5px solid var(--brand); border-radius: 50%; }
.timeline-item time { color: var(--brand-dark); font-size: .82rem; font-weight: 850; }
.timeline-item h3 { margin: 5px 0; color: var(--text); }
.timeline-item p { margin: 0; }
.review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.review-card { min-height: 220px; padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: 20px; }
.review-card:nth-child(2), .review-card:nth-child(5) { transform: translateY(18px); }
.review-mark { color: var(--brand); font-size: 2.5rem; line-height: 1; font-weight: 900; }
.review-card p { margin: 14px 0 20px; }
.review-card span { color: var(--text); font-size: .9rem; font-weight: 850; }
.faq-list { max-width: 900px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-question { width: 100%; min-height: 76px; padding: 18px 52px 18px 0; position: relative; text-align: left; color: var(--text); background: transparent; border: 0; font-weight: 850; cursor: pointer; }
.faq-question::after { content: "+"; position: absolute; right: 4px; top: 50%; width: 34px; height: 34px; display: grid; place-items: center; transform: translateY(-50%); color: var(--brand-dark); background: var(--brand-soft); border-radius: 50%; font-size: 1.25rem; }
.faq-item.is-open .faq-question::after { content: "−"; }
.faq-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .22s ease; }
.faq-answer > div { overflow: hidden; }
.faq-item.is-open .faq-answer { grid-template-rows: 1fr; }
.faq-answer p { margin: 0; padding: 0 58px 22px 0; }

.page-hero { position: relative; padding: 86px 0 74px; overflow: hidden; background: linear-gradient(135deg, #f8fbff, #eaf3ff); }
.page-hero::after { content: ""; position: absolute; width: 420px; height: 420px; right: -120px; top: -170px; border: 80px solid rgba(41,128,254,.075); border-radius: 50%; }
.page-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr .92fr; gap: 52px; align-items: center; }
.page-hero h1 { margin: 14px 0 18px; color: var(--text); font-size: clamp(2.7rem, 5.5vw, 4.8rem); line-height: 1.02; letter-spacing: -.05em; }
.page-hero p { max-width: 720px; margin: 0; font-size: 1.08rem; }
.page-hero-visual { min-height: 360px; display: grid; place-items: center; padding: 28px; border: 1px solid rgba(207,226,251,.9); border-radius: var(--radius-lg); background: rgba(255,255,255,.64); }
.page-hero-visual img { max-height: 330px; object-fit: contain; filter: drop-shadow(0 24px 35px rgba(23,103,214,.16)); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: .86rem; }
.breadcrumbs a { color: var(--brand-dark); }
.inner-grid { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(280px,.65fr); gap: 36px; align-items: start; }
.article-stack { display: grid; gap: 24px; }
.article-block { padding: 38px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.article-block.soft { background: linear-gradient(145deg, #fff, #f2f7ff); }
.article-block h2 { margin: 0 0 14px; color: var(--text); font-size: clamp(1.7rem, 3vw, 2.45rem); line-height: 1.2; }
.article-block h3 { margin: 24px 0 10px; color: var(--text); }
.article-block p:last-child { margin-bottom: 0; }
.side-panel { position: sticky; top: 100px; display: grid; gap: 18px; }
.side-card { padding: 28px; background: var(--ice); border: 1px solid var(--line); border-radius: 20px; }
.side-card h2, .side-card h3 { margin-top: 0; color: var(--text); }
.side-links { display: grid; gap: 8px; }
.side-links a { padding: 11px 13px; color: var(--brand-dark); background: #fff; border: 1px solid var(--line); border-radius: 11px; font-weight: 800; }
.info-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 h3 { margin: 14px 0 8px; color: var(--text); }
.info-card p { margin: 0; }
.info-card .num { width: 42px; height: 42px; display: grid; place-items: center; color: var(--brand-dark); background: var(--brand-soft); border-radius: 13px; font-weight: 900; }
.notice-box { padding: 24px 26px; color: #20466f; background: #edf6ff; border-left: 4px solid var(--brand); border-radius: 0 16px 16px 0; }
.notice-box strong { display: block; color: var(--text); margin-bottom: 6px; }
.data-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.data-table th, .data-table td { padding: 15px 16px; text-align: left; border-bottom: 1px solid var(--line); }
.data-table th { color: var(--text); background: var(--ice); }
.data-table tr:last-child td { border-bottom: 0; }
.contact-options { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.contact-option { padding: 30px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.contact-option h3 { margin: 0 0 8px; color: var(--text); }
.policy-content h2 { margin-top: 42px; color: var(--text); }
.policy-content h2:first-child { margin-top: 0; }
.policy-content h3 { color: var(--text); }
.site-download-cta { padding: 72px 0; background: linear-gradient(135deg, #eaf3ff, #f9fcff); border-top: 1px solid var(--line); }
.download-cta-inner { padding: 42px 46px; display: flex; align-items: center; justify-content: space-between; gap: 32px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.download-cta-inner h2 { max-width: 720px; font-size: clamp(1.9rem, 3.2vw, 2.8rem); }
.download-cta-inner p { max-width: 760px; margin: 0; }
.download-cta-button { flex: 0 0 auto; }
.site-footer { color: #b9c8dc; background: var(--footer); }
.footer-grid { padding: 68px 0 48px; display: grid; grid-template-columns: 1.6fr repeat(4,1fr); gap: 34px; }
.footer-logo { width: 176px; margin-bottom: 18px; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 330px; margin: 0; }
.site-footer h3 { margin: 0 0 16px; color: #fff; font-size: .98rem; }
.site-footer nav { display: grid; align-content: start; gap: 9px; }
.site-footer a { font-size: .9rem; }
.site-footer a:hover { color: #fff; }
.footer-bottom { padding: 20px 0 26px; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid rgba(255,255,255,.1); font-size: .82rem; }
.footer-bottom p { margin: 0; }

@media (max-width: 1180px) {
  .desktop-nav { gap: 0; }
  .nav-link { padding-inline: 8px; font-size: .88rem; }
  .brand-logo { width: 150px; }
  .header-shell { gap: 16px; }
}
@media (max-width: 1024px) {
  :root { --container: min(100% - 36px, 900px); }
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
  .header-shell { min-height: 70px; }
  .brand-logo { width: 160px; }
  .hero-grid, .page-hero-grid { grid-template-columns: 1fr; }
  .hero-copy { text-align: center; }
  .hero-copy .lead { margin-inline: auto; }
  .hero-tags, .hero-copy .button-row { justify-content: center; }
  .hero-visual { min-height: 470px; }
  .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-grid { grid-template-columns: repeat(2,1fr); }
  .category-card.featured, .category-card.wide { grid-column: auto; }
  .split-feature, .split-feature.reverse, .security-grid, .swap-grid { grid-template-columns: 1fr; }
  .feature-visual { min-height: 440px; }
  .media-topic { grid-template-columns: 1fr; }
  .media-topic-image { min-height: 420px; }
  .inner-grid { grid-template-columns: 1fr; }
  .side-panel { position: static; grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1.5fr repeat(2,1fr); }
  .footer-brand { grid-row: span 2; }
}
@media (max-width: 760px) {
  :root { --container: min(100% - 28px, 680px); }
  body { font-size: 15px; }
  .section-pad { padding: 76px 0; }
  .section-head { margin-bottom: 30px; }
  .header-shell { width: calc(100% - 20px); min-height: 66px; gap: 8px; }
  .brand-logo { width: 132px; }
  .header-download { min-height: 42px; padding: 8px 12px; font-size: .86rem; }
  .menu-toggle { width: 42px; height: 42px; border-radius: 12px; }
  .hero { padding: 58px 0 72px; }
  .hero-copy h1 { font-size: clamp(2.65rem, 13vw, 4.1rem); }
  .hero-copy .button-row { display: grid; grid-template-columns: 1fr; }
  .hero-copy .button-row a { width: 100%; }
  .hero-visual { min-height: 410px; margin-top: 12px; }
  .hero-product { width: min(330px, 80%); }
  .float-note { max-width: 160px; padding: 11px 12px; font-size: .76rem; }
  .float-note.one { top: 24px; left: 0; }
  .float-note.two { right: 0; top: 150px; }
  .float-note.three { left: 12px; bottom: 36px; }
  .capability-strip { margin-top: -28px; }
  .capability-grid, .category-grid, .dual-grid, .ecosystem-grid, .review-grid, .info-grid, .contact-options { grid-template-columns: 1fr; }
  .capability-item + .capability-item { border-left: 0; border-top: 1px solid var(--line); }
  .category-card { min-height: 210px; }
  .topic-card.offset, .review-card:nth-child(2), .review-card:nth-child(5) { margin-top: 0; transform: none; }
  .feature-visual { min-height: 380px; padding: 26px; }
  .content-panel, .topic-card, .media-topic-card, .swap-checks, .ecosystem-card, .article-block { padding: 28px 24px; }
  .check-list, .security-points { grid-template-columns: 1fr; }
  .security-grid { gap: 28px; }
  .swap-intro { padding: 24px; }
  .steps { display: grid; grid-template-columns: 1fr; overflow: visible; }
  .step { min-width: 0; }
  .page-hero { padding: 62px 0 54px; }
  .page-hero h1 { font-size: clamp(2.4rem, 12vw, 3.7rem); }
  .page-hero-visual { min-height: 300px; }
  .side-panel { grid-template-columns: 1fr; }
  .data-table { display: block; overflow-x: auto; white-space: nowrap; }
  .download-cta-inner { padding: 30px 24px; flex-direction: column; align-items: stretch; }
  .download-cta-button { width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; grid-row: auto; }
  .footer-bottom { flex-direction: column; }
}
@media (max-width: 460px) {
  .brand-logo { width: 112px; }
  .header-download { padding-inline: 10px; }
  .mobile-menu details div { grid-template-columns: 1fr; }
  .hero-tags { display: grid; grid-template-columns: repeat(2,1fr); width: 100%; }
  .hero-tags span { text-align: center; }
  .float-note.three { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}