:root {
  --blue: #2980FE;
  --blue-deep: #1767D6;
  --blue-soft: #EAF3FF;
  --blue-pale: #F5F8FD;
  --gray-soft: #F7F9FC;
  --white: #FFFFFF;
  --ink: #172033;
  --text: #465266;
  --muted: #718096;
  --line: #DCE6F2;
  --footer: #10233F;
  --success: #1E9B75;
  --shadow: 0 18px 55px rgba(27, 79, 142, .10);
  --shadow-sm: 0 10px 28px rgba(27, 79, 142, .08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", Arial, sans-serif; line-height: 1.7; overflow-x: hidden; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; padding: 12px 16px; border-radius: 10px; background: var(--ink); color: #fff; z-index: 3000; }
.skip-link:focus { top: 16px; }
.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(16px); }
.header-shell { width: min(calc(100% - 32px), 1320px); min-height: 76px; margin: auto; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand img { width: 154px; height: auto; object-fit: contain; }
.desktop-nav { flex: 1; display: flex; align-items: center; justify-content: center; gap: 3px; min-width: 0; }
.nav-link { display: inline-flex; min-height: 44px; align-items: center; padding: 8px 11px; border-radius: 12px; font-size: 15px; font-weight: 650; color: #34425a; white-space: nowrap; }
.nav-link:hover, .nav-link:focus-visible, .nav-link.is-active { color: var(--blue-deep); background: var(--blue-soft); outline: none; }
.nav-group { position: relative; }
.mega-menu { position: absolute; left: 50%; top: calc(100% + 10px); width: 620px; transform: translate(-50%, 12px); padding: 20px; display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 10px; background: #fff; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transition: .2s ease; }
.mega-menu::before { content: ""; position: absolute; top: -14px; left: 0; right: 0; height: 16px; }
.nav-group:hover .mega-menu, .nav-group:focus-within .mega-menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.mega-menu.compact { width: 550px; }
.mega-menu.narrow { width: 500px; }
.mega-menu.align-right { left: auto; right: 0; transform: translate(0, 12px); }
.nav-group:hover .mega-menu.align-right, .nav-group:focus-within .mega-menu.align-right { transform: translate(0, 0); }
.mega-intro { grid-row: span 2; padding: 16px; border-radius: 16px; background: linear-gradient(145deg, var(--blue), var(--blue-deep)); color: #fff; }
.mega-intro strong, .mega-intro span { display: block; }
.mega-intro strong { font-size: 18px; margin-bottom: 8px; }
.mega-intro span { font-size: 13px; opacity: .86; }
.mega-menu > a { padding: 12px 14px; border-radius: 14px; border: 1px solid transparent; }
.mega-menu > a:hover, .mega-menu > a:focus-visible { background: var(--blue-pale); border-color: var(--line); outline: none; }
.mega-menu > a strong, .mega-menu > a span { display: block; }
.mega-menu > a strong { color: var(--ink); font-size: 14px; }
.mega-menu > a span { margin-top: 2px; color: var(--muted); font-size: 12px; line-height: 1.45; }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.download-btn, .primary-btn { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: 11px 21px; border-radius: 14px; background: linear-gradient(135deg, var(--blue), var(--blue-deep)); color: #fff; font-weight: 750; box-shadow: 0 10px 22px rgba(41,128,254,.22); transition: transform .18s ease, box-shadow .18s ease; white-space: nowrap; }
.download-btn:hover, .primary-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(41,128,254,.28); }
.secondary-btn, .text-link { display: inline-flex; align-items: center; gap: 6px; color: var(--blue-deep); font-weight: 750; }
.secondary-btn { min-height: 46px; padding: 10px 18px; border: 1px solid #bcd6f7; border-radius: 14px; background: #fff; }
.text-link::after { content: "→"; }
.menu-toggle { display: none; width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 14px; background: #fff; align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
.menu-toggle span { width: 20px; height: 2px; border-radius: 3px; background: var(--ink); }
.menu-overlay { position: fixed; inset: 0; z-index: 1090; background: rgba(16,35,63,.48); opacity: 0; transition: opacity .2s; }
.menu-overlay.is-open { opacity: 1; }
.mobile-menu { position: fixed; top: 0; right: 0; bottom: 0; z-index: 1100; width: min(92vw, 430px); padding: 20px; background: #fff; box-shadow: -20px 0 50px rgba(16,35,63,.18); transform: translateX(104%); transition: transform .24s ease; overflow-y: auto; }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.menu-close { width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 14px; background: var(--blue-pale); font-size: 28px; color: var(--ink); }
.mobile-nav { display: grid; gap: 9px; }
.mobile-nav > a, .mobile-nav summary { display: flex; min-height: 50px; align-items: center; justify-content: space-between; padding: 11px 14px; border: 1px solid var(--line); border-radius: 14px; font-weight: 750; background: #fff; list-style: none; }
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav summary::after { content: "+"; font-size: 22px; color: var(--blue); }
.mobile-nav details[open] summary::after { content: "−"; }
.mobile-nav details div { display: grid; gap: 4px; padding: 8px 10px 2px 20px; }
.mobile-nav details a { min-height: 44px; display: flex; align-items: center; color: var(--text); border-bottom: 1px solid #eef3f8; }
.mobile-menu-download { width: 100%; margin-top: 22px; }
main { display: block; }
section { position: relative; }
.section-pad { padding: 92px 0; }
.section-pad-sm { padding: 66px 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px; color: var(--blue-deep); font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; }
.eyebrow.light { color: #d8e9ff; }
.section-heading { max-width: 760px; margin-bottom: 38px; }
.section-heading.center { text-align: center; margin-inline: auto; }
h1, h2, h3 { margin: 0 0 16px; line-height: 1.18; letter-spacing: -.02em; }
h1 { font-size: clamp(42px, 6vw, 74px); }
h2 { font-size: clamp(31px, 4vw, 48px); }
h3 { font-size: 21px; }
p { margin: 0 0 18px; color: var(--text); }
.lead { font-size: clamp(18px, 2.2vw, 22px); color: #34425a; }
.muted { color: var(--muted); }
.hero { overflow: hidden; padding: 82px 0 72px; background: radial-gradient(circle at 88% 12%, rgba(41,128,254,.18), transparent 28%), linear-gradient(180deg, #fff 0%, #f5f9ff 100%); }
.hero::before { content: ""; position: absolute; left: -140px; bottom: -160px; width: 440px; height: 440px; border: 70px solid rgba(41,128,254,.06); border-radius: 50%; }
.hero-grid { display: grid; grid-template-columns: 1.12fr .88fr; align-items: center; gap: 58px; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy h1 strong { color: var(--blue); }
.hero-actions, .button-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 24px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 9px; }
.tag { padding: 8px 12px; border: 1px solid #cfe1f6; border-radius: 999px; background: rgba(255,255,255,.8); color: #48627e; font-size: 13px; font-weight: 650; }
.hero-visual { position: relative; min-height: 510px; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; width: 410px; height: 410px; border-radius: 50%; background: linear-gradient(145deg, rgba(41,128,254,.22), rgba(234,243,255,.4)); filter: blur(2px); }
.hero-visual > img { position: relative; z-index: 2; max-height: 500px; object-fit: contain; filter: drop-shadow(0 30px 35px rgba(18,67,128,.22)); }
.float-note { position: absolute; z-index: 3; max-width: 190px; padding: 13px 15px; border: 1px solid rgba(220,230,242,.9); border-radius: 15px; background: rgba(255,255,255,.9); box-shadow: var(--shadow-sm); font-size: 13px; font-weight: 750; color: #34425a; backdrop-filter: blur(12px); }
.float-note:nth-of-type(1) { left: 0; top: 16%; }
.float-note:nth-of-type(2) { right: 0; top: 38%; }
.float-note:nth-of-type(3) { left: 7%; bottom: 10%; }
.capability-strip { margin-top: -28px; position: relative; z-index: 4; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); padding: 10px; border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: var(--shadow); }
.capability-item { padding: 22px 24px; border-right: 1px solid var(--line); }
.capability-item:last-child { border-right: 0; }
.capability-item strong { display: block; margin-bottom: 6px; font-size: 17px; }
.capability-item p { margin: 0; font-size: 14px; }
.category-mosaic { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.category-card { min-height: 210px; padding: 25px; border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: 0 8px 26px rgba(35,78,129,.06); display: flex; flex-direction: column; justify-content: space-between; transition: transform .2s, border-color .2s; }
.category-card:hover { transform: translateY(-4px); border-color: #9cc5f8; }
.category-card.featured { grid-column: span 2; background: linear-gradient(135deg, #1767D6 0%, #2980FE 100%); color: #fff; }
.category-card.featured p, .category-card.featured .text-link { color: #eaf3ff; }
.category-card.wide { grid-column: span 2; min-height: 190px; background: var(--blue-pale); }
.category-card .number { width: 40px; height: 40px; display: grid; place-items: center; margin-bottom: 28px; border-radius: 12px; background: var(--blue-soft); color: var(--blue-deep); font-weight: 850; }
.category-card.featured .number { background: rgba(255,255,255,.16); color: #fff; }
.category-card p { font-size: 14px; }
.category-card h3 { margin-bottom: 8px; }
.split-panel { display: grid; grid-template-columns: .92fr 1.08fr; gap: 48px; align-items: center; padding: 48px; border-radius: var(--radius-xl); background: var(--blue-soft); }
.split-panel.reverse { grid-template-columns: 1.08fr .92fr; }
.media-frame { min-height: 430px; display: grid; place-items: center; padding: 28px; border-radius: 24px; background: rgba(255,255,255,.76); border: 1px solid rgba(255,255,255,.9); }
.media-frame img { max-height: 410px; object-fit: contain; }
.check-list, .plain-list { margin: 24px 0; padding: 0; list-style: none; display: grid; gap: 11px; }
.check-list li, .plain-list li { position: relative; padding-left: 31px; color: var(--text); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 2px; width: 22px; height: 22px; display: grid; place-items: center; border-radius: 50%; background: #dff7ef; color: var(--success); font-size: 12px; font-weight: 900; }
.plain-list li::before { content: ""; position: absolute; left: 4px; top: 12px; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); }
.dual-feature { display: grid; grid-template-columns: 1.05fr .95fr; gap: 22px; }
.feature-block { padding: 38px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: #fff; box-shadow: var(--shadow-sm); }
.feature-block.offset { margin-top: 58px; background: var(--blue-pale); }
.feature-block.dark { background: var(--footer); color: #fff; border-color: transparent; }
.feature-block.dark p, .feature-block.dark li { color: #d6e2f2; }
.feature-block img { max-height: 290px; margin: 0 auto 28px; object-fit: contain; }
.security-band { overflow: hidden; background: linear-gradient(135deg, #10233F, #1767D6); color: #fff; }
.security-band p { color: #d7e6fb; }
.security-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 54px; 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,.07); }
.security-point strong { display: block; margin-bottom: 5px; }
.security-point span { color: #c9d9ee; font-size: 14px; }
.swap-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 30px; align-items: stretch; }
.swap-visual, .check-panel { padding: 34px; border-radius: var(--radius-xl); }
.swap-visual { background: linear-gradient(150deg, var(--blue-soft), #fff); border: 1px solid var(--line); }
.swap-visual img { max-height: 300px; margin: auto; object-fit: contain; }
.check-panel { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; counter-reset: flow; }
.flow-step { position: relative; padding: 24px 18px; border-radius: 18px; background: #fff; border: 1px solid var(--line); }
.flow-step::after { content: ""; position: absolute; right: -13px; top: 42px; width: 14px; height: 2px; background: #b9d1ee; }
.flow-step:last-child::after { display: none; }
.flow-num { width: 38px; height: 38px; display: grid; place-items: center; margin-bottom: 18px; border-radius: 12px; background: var(--blue); color: #fff; font-weight: 850; }
.flow-step h3 { font-size: 17px; }
.flow-step p { font-size: 13px; }
.timeline { position: relative; display: grid; gap: 0; }
.timeline::before { content: ""; position: absolute; left: 111px; top: 0; bottom: 0; width: 1px; background: var(--line); }
.timeline-item { display: grid; grid-template-columns: 92px 1fr; gap: 38px; padding: 21px 0; }
.timeline-item time { color: var(--blue-deep); font-size: 13px; font-weight: 800; }
.timeline-content { position: relative; padding: 20px 24px; border: 1px solid var(--line); border-radius: 17px; background: #fff; }
.timeline-content::before { content: ""; position: absolute; left: -46px; top: 27px; width: 12px; height: 12px; border: 4px solid #fff; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 1px var(--line); }
.timeline-content h3 { font-size: 18px; margin-bottom: 7px; }
.timeline-content p { margin: 0; font-size: 14px; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.review { padding: 24px; border-radius: 20px; border: 1px solid var(--line); background: #fff; }
.review:nth-child(2), .review:nth-child(5) { background: var(--blue-pale); }
.review .quote { font-size: 30px; line-height: 1; color: var(--blue); }
.review p { margin: 10px 0 14px; }
.review strong { font-size: 13px; color: var(--muted); }
.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: 16px 20px; display: flex; align-items: center; justify-content: space-between; gap: 20px; text-align: left; border: 0; background: transparent; color: var(--ink); font-weight: 760; }
.faq-question::after { content: "+"; color: var(--blue); font-size: 24px; }
.faq-item.is-open .faq-question::after { content: "−"; }
.faq-answer { padding: 0 20px 20px; }
.faq-answer p { margin: 0; }
.page-hero { padding: 82px 0 58px; background: radial-gradient(circle at 85% 20%, rgba(41,128,254,.18), transparent 25%), linear-gradient(180deg,#fff,#f5f9ff); }
.page-hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 46px; align-items: center; }
.page-hero h1 { font-size: clamp(40px, 5vw, 64px); }
.page-hero-visual { min-height: 320px; display: grid; place-items: center; padding: 24px; border-radius: var(--radius-xl); background: rgba(255,255,255,.7); border: 1px solid rgba(220,230,242,.8); }
.page-hero-visual img { max-height: 340px; object-fit: contain; }
.content-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.info-card { padding: 27px; border: 1px solid var(--line); border-radius: 20px; background: #fff; box-shadow: 0 8px 24px rgba(35,78,129,.05); }
.info-card h3 { margin-bottom: 10px; }
.info-card p:last-child { margin-bottom: 0; }
.number-card .num { display: inline-flex; margin-bottom: 18px; font-size: 34px; font-weight: 850; color: var(--blue); }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 34px; align-items: start; }
.article-main { display: grid; gap: 22px; }
.article-section { padding: 34px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.article-section.alt { background: var(--blue-pale); }
.side-panel { position: sticky; top: 102px; padding: 24px; border-radius: 20px; background: var(--footer); color: #fff; }
.side-panel p { color: #d4e1f0; }
.side-panel a:not(.download-btn) { display: block; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.12); color: #eaf3ff; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; }
table { width: 100%; min-width: 680px; border-collapse: collapse; background: #fff; }
th, td { padding: 16px 18px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--blue-pale); color: var(--ink); }
.notice { padding: 22px 24px; border-left: 4px solid var(--blue); border-radius: 0 16px 16px 0; background: var(--blue-soft); }
.notice strong { display: block; margin-bottom: 6px; }
.global-cta { padding: 58px 0; background: linear-gradient(135deg, var(--blue-deep), var(--blue)); color: #fff; }
.global-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 34px; }
.global-cta h2 { font-size: clamp(28px, 4vw, 42px); }
.global-cta p { color: #e2efff; margin-bottom: 0; }
.download-btn-light { background: #fff; color: var(--blue-deep); box-shadow: none; }
.site-footer { padding: 66px 0 20px; background: var(--footer); color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.8fr repeat(3, 1fr); gap: 44px; }
.footer-brand p { max-width: 440px; color: #b8c7da; }
.footer-grid h3 { font-size: 15px; color: #dfeaff; }
.footer-grid > div > a:not(.brand) { display: block; padding: 6px 0; color: #aebdd0; font-size: 14px; }
.footer-grid > div > a:hover { color: #fff; }
.footer-brand .brand img { filter: brightness(0) invert(1); margin-bottom: 20px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 42px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); color: #90a3ba; font-size: 13px; }
.bg-soft { background: var(--gray-soft); }
.bg-blue-soft { background: var(--blue-pale); }
.center { text-align: center; }
.mt-0 { margin-top: 0 !important; }

@media (max-width: 1120px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: flex; }
  .header-shell { width: min(calc(100% - 24px), 1200px); }
  .hero-grid, .page-hero-grid { gap: 30px; }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow-step:nth-child(3)::after { display: none; }
}
@media (max-width: 900px) {
  .section-pad { padding: 72px 0; }
  .hero { padding-top: 58px; }
  .hero-grid, .page-hero-grid, .split-panel, .split-panel.reverse, .security-grid, .swap-layout, .article-layout { grid-template-columns: 1fr; }
  .hero-visual { min-height: 430px; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .capability-item:nth-child(2) { border-right: 0; }
  .capability-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .category-mosaic { grid-template-columns: repeat(2, 1fr); }
  .category-card.featured, .category-card.wide { grid-column: span 2; }
  .dual-feature { grid-template-columns: 1fr; }
  .feature-block.offset { margin-top: 0; }
  .content-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column: 2 / -1; }
  .side-panel { position: static; }
}
@media (max-width: 640px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .header-shell { min-height: 68px; gap: 10px; }
  .brand img { width: 128px; }
  .header-actions { margin-left: auto; gap: 7px; }
  .header-actions .download-btn { min-height: 42px; padding: 9px 13px; border-radius: 12px; font-size: 13px; }
  .menu-toggle { width: 42px; height: 42px; border-radius: 12px; }
  h1 { font-size: 41px; }
  .hero { padding: 50px 0 62px; }
  .hero-visual { min-height: 360px; }
  .hero-visual::before { width: 300px; height: 300px; }
  .hero-visual > img { max-height: 350px; }
  .float-note { position: static; max-width: none; flex: 1 1 45%; }
  .hero-visual { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; }
  .hero-visual > img { width: 100%; }
  .capability-strip { margin-top: 0; padding-top: 18px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-item { border-right: 0; border-bottom: 1px solid var(--line); }
  .capability-item:last-child { border-bottom: 0; }
  .category-mosaic, .content-grid, .review-grid, .security-points { grid-template-columns: 1fr; }
  .category-card.featured, .category-card.wide { grid-column: auto; }
  .split-panel, .feature-block, .swap-visual, .check-panel, .article-section { padding: 26px 20px; }
  .media-frame { min-height: 330px; padding: 18px; }
  .flow { grid-template-columns: 1fr; }
  .flow-step::after { left: 36px; right: auto; top: auto; bottom: -13px; width: 2px; height: 14px; }
  .flow-step:nth-child(3)::after { display: block; }
  .flow-step:last-child::after { display: none; }
  .timeline::before { left: 6px; }
  .timeline-item { grid-template-columns: 1fr; gap: 8px; padding-left: 26px; }
  .timeline-content::before { left: -27px; top: 24px; }
  .global-cta-inner, .footer-bottom { flex-direction: column; align-items: flex-start; }
  .global-cta .download-btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-grid > div:last-child { grid-column: auto; }
  .page-hero { padding: 58px 0 44px; }
  .page-hero-visual { min-height: 260px; }
}