:root {
  --blue: #2980FE;
  --blue-deep: #1767D6;
  --blue-soft: #EAF3FF;
  --blue-pale: #F5F8FD;
  --gray: #F7F9FC;
  --white: #FFFFFF;
  --ink: #172033;
  --text: #465266;
  --muted: #718096;
  --border: #DCE6F2;
  --footer: #10233F;
  --shadow: 0 18px 50px rgba(36, 93, 159, .10);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", 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, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 9999; padding: 10px 16px; background: var(--footer); color: white; border-radius: 10px; }
.skip-link:focus { top: 16px; }
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(220,230,242,.9); backdrop-filter: blur(18px); }
.nav-shell { max-width: 1280px; min-height: 76px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; gap: 24px; }
.brand { flex: 0 0 auto; display: inline-flex; align-items: center; min-height: 44px; }
.brand img { width: 154px; max-height: 42px; object-fit: contain; }
.desktop-nav { flex: 1; display: flex; align-items: center; justify-content: center; gap: 3px; min-width: 0; white-space: nowrap; }
.nav-link { display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px; color: #33445c; font-size: 14px; font-weight: 700; border-radius: 12px; }
.nav-link:hover, .nav-link:focus-visible, .nav-link.is-active { color: var(--blue); background: var(--blue-pale); }
.nav-group { position: relative; }
.mega-menu { position: absolute; left: 50%; top: calc(100% + 16px); width: 640px; padding: 18px; display: grid; grid-template-columns: 1.15fr 1fr 1fr; gap: 10px; background: rgba(255,255,255,.98); border: 1px solid var(--border); border-radius: 22px; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translate(-50%, 8px); transition: .18s ease; }
.mega-menu::before { content: ""; position: absolute; left: 0; right: 0; top: -18px; height: 20px; }
.nav-group:hover .mega-menu, .nav-group:focus-within .mega-menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.mega-menu-right { left: auto; right: -120px; transform: translate(0, 8px); }
.nav-group:hover .mega-menu-right, .nav-group:focus-within .mega-menu-right { transform: translate(0, 0); }
.mega-menu a, .mega-intro { padding: 15px; border-radius: 15px; }
.mega-menu a:hover, .mega-menu a:focus-visible { background: var(--blue-pale); color: var(--blue-deep); }
.mega-menu b, .mega-intro strong { display: block; margin-bottom: 4px; font-size: 15px; }
.mega-menu span { display: block; color: var(--muted); font-size: 12px; line-height: 1.5; white-space: normal; }
.mega-intro { grid-row: span 2; background: linear-gradient(145deg, var(--blue-soft), #fff); border: 1px solid var(--border); }
.mega-intro strong { color: var(--blue-deep); font-size: 20px; }
.nav-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.download-btn, .primary-btn, .secondary-btn, .text-btn { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; border-radius: 13px; font-weight: 800; transition: .2s ease; }
.download-btn, .primary-btn { padding: 10px 18px; color: white; background: linear-gradient(135deg, var(--blue), var(--blue-deep)); box-shadow: 0 10px 22px rgba(41,128,254,.23); }
.download-btn:hover, .primary-btn:hover { transform: translateY(-1px); box-shadow: 0 14px 28px rgba(41,128,254,.29); }
.secondary-btn { padding: 10px 18px; color: var(--blue-deep); background: white; border: 1px solid var(--border); }
.secondary-btn:hover { border-color: var(--blue); background: var(--blue-pale); }
.text-btn { color: var(--blue-deep); justify-content: flex-start; }
.text-btn::after { content: "→"; margin-left: 8px; }
.menu-toggle { width: 46px; height: 46px; padding: 11px; border: 1px solid var(--border); background: white; border-radius: 13px; display: flex; flex-direction: column; justify-content: center; gap: 5px; }
.menu-toggle span { display: block; width: 100%; height: 2px; background: var(--ink); border-radius: 2px; }
.menu-overlay { position: fixed; inset: 0; z-index: 1200; background: rgba(16,35,63,.44); opacity: 0; visibility: hidden; transition: .22s ease; }
.menu-overlay.is-open { opacity: 1; visibility: visible; }
.mobile-menu { position: fixed; top: 0; right: 0; bottom: 0; z-index: 1300; width: min(440px, 92vw); background: white; transform: translateX(102%); transition: .25s ease; display: flex; flex-direction: column; box-shadow: -20px 0 60px rgba(16,35,63,.16); }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu-head, .mobile-menu-foot { padding: 18px 22px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); }
.mobile-menu-foot { border-top: 1px solid var(--border); border-bottom: 0; }
.mobile-menu-foot .download-btn { width: 100%; }
.menu-close { width: 46px; height: 46px; border: 0; border-radius: 13px; background: var(--blue-pale); color: var(--ink); font-size: 30px; line-height: 1; }
.mobile-menu-body { flex: 1; overflow-y: auto; padding: 16px 22px 26px; }
.mobile-home, .mobile-menu summary, .mobile-menu details a { min-height: 48px; display: flex; align-items: center; }
.mobile-home, .mobile-menu summary { font-weight: 800; border-bottom: 1px solid var(--border); }
.mobile-menu summary { list-style: none; justify-content: space-between; cursor: pointer; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu summary::after { content: "+"; color: var(--blue); font-size: 23px; }
.mobile-menu details[open] summary::after { content: "−"; }
.mobile-menu details div { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 10px; padding: 8px 0 14px; }
.mobile-menu details a { color: var(--text); font-size: 14px; }
main { min-height: 65vh; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 92px 0; }
.section-sm { padding: 62px 0; }
.bg-soft { background: var(--blue-pale); }
.bg-gray { background: var(--gray); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 15px; color: var(--blue-deep); font-size: 13px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--blue); }
h1, h2, h3 { line-height: 1.22; margin: 0 0 18px; letter-spacing: -.025em; }
h1 { font-size: clamp(38px, 6vw, 68px); }
h2 { font-size: clamp(30px, 4vw, 46px); }
h3 { font-size: 21px; }
p { margin: 0 0 18px; color: var(--text); }
.lead { font-size: clamp(18px, 2.2vw, 22px); color: #3c4d66; }
.section-head { max-width: 760px; margin-bottom: 38px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.hero { padding: 76px 0 64px; overflow: hidden; background: radial-gradient(circle at 82% 20%, #dcecff 0, transparent 28%), linear-gradient(180deg, #fff, #f7fbff); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero-copy p { max-width: 690px; }
.hero-actions, .button-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; }
.tag { padding: 8px 13px; color: var(--blue-deep); background: var(--blue-soft); border: 1px solid #cfe3ff; border-radius: 999px; font-size: 13px; font-weight: 800; }
.hero-visual { position: relative; min-height: 500px; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; inset: 10% 6%; border-radius: 40% 60% 55% 45%; background: linear-gradient(145deg, #dcebff, #f8fbff); border: 1px solid #cfe3ff; transform: rotate(-6deg); }
.hero-visual img { position: relative; z-index: 1; max-height: 500px; object-fit: contain; filter: drop-shadow(0 28px 42px rgba(39,93,154,.18)); }
.float-note { position: absolute; z-index: 2; width: 180px; padding: 13px 15px; background: rgba(255,255,255,.94); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow); font-size: 13px; font-weight: 800; }
.note-a { left: -8px; top: 15%; }.note-b { right: -4px; top: 42%; }.note-c { left: 8%; bottom: 8%; }
.capability-strip { margin-top: -1px; background: white; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.capability-item { padding: 28px 24px; border-right: 1px solid var(--border); }
.capability-item:last-child { border-right: 0; }
.capability-item h2 { margin-bottom: 8px; font-size: 18px; }
.capability-item p { margin: 0; font-size: 14px; }
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.category-card { min-height: 210px; padding: 26px; display: flex; flex-direction: column; justify-content: space-between; background: white; border: 1px solid var(--border); border-radius: var(--radius-md); transition: .2s ease; overflow: hidden; position: relative; }
.category-card::after { content: ""; position: absolute; width: 100px; height: 100px; right: -40px; bottom: -40px; border-radius: 50%; background: var(--blue-soft); }
.category-card:hover { transform: translateY(-4px); border-color: #b9d7ff; box-shadow: var(--shadow); }
.category-card.wide { grid-column: span 2; background: linear-gradient(135deg, #fff, var(--blue-pale)); }
.category-card h3, .category-card p, .category-card a { position: relative; z-index: 1; }
.category-card p { font-size: 15px; }
.split-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 46px; align-items: center; padding: 46px; border-radius: var(--radius-lg); background: linear-gradient(135deg, #e9f3ff, #f9fcff); border: 1px solid #d2e5ff; }
.split-panel.reverse { grid-template-columns: 1.1fr .9fr; }
.media-frame { min-height: 410px; display: grid; place-items: center; padding: 22px; background: rgba(255,255,255,.75); border: 1px solid var(--border); border-radius: 24px; }
.media-frame img { max-height: 420px; object-fit: contain; }
.check-list, .plain-list { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
.check-list li, .plain-list li { position: relative; padding-left: 30px; color: var(--text); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 22px; height: 22px; display: grid; place-items: center; color: white; background: var(--blue); border-radius: 50%; font-size: 12px; font-weight: 900; }
.plain-list li::before { content: ""; position: absolute; left: 4px; top: .72em; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); }
.dual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
.topic-panel { padding: 38px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: white; }
.topic-panel.offset { margin-top: 54px; background: var(--blue-pale); }
.topic-panel.large { grid-row: span 2; }
.topic-panel img { width: 100%; max-height: 330px; object-fit: contain; margin-bottom: 26px; }
.security-band { background: linear-gradient(135deg, var(--footer), #18487f 58%, var(--blue-deep)); color: white; }
.security-band p, .security-band li { color: #e6f0ff; }
.security-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; align-items: center; }
.security-grid .eyebrow { color: #b8d7ff; }
.security-grid .eyebrow::before { background: #8fc0ff; }
.security-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.security-list div { padding: 17px; border: 1px solid rgba(255,255,255,.2); border-radius: 15px; background: rgba(255,255,255,.08); }
.process { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.process-step { position: relative; padding: 24px 18px; background: white; border: 1px solid var(--border); border-radius: 18px; }
.process-step:not(:last-child)::after { content: ""; position: absolute; top: 34px; right: -13px; width: 14px; height: 2px; background: var(--blue); z-index: 2; }
.step-no { width: 36px; height: 36px; margin-bottom: 18px; display: grid; place-items: center; color: white; background: var(--blue); border-radius: 12px; font-weight: 900; }
.process-step h3 { font-size: 17px; }
.process-step p { font-size: 13px; }
.timeline { display: grid; gap: 14px; }
.timeline-item { display: grid; grid-template-columns: 120px 1fr auto; gap: 22px; align-items: center; padding: 21px 24px; border: 1px solid var(--border); border-radius: 16px; background: white; }
.timeline-item time { color: var(--blue-deep); font-weight: 900; font-size: 13px; }
.timeline-item h3 { margin: 0 0 5px; font-size: 18px; }
.timeline-item p { margin: 0; font-size: 14px; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.review { padding: 25px; border-radius: 18px; background: white; border: 1px solid var(--border); }
.review:nth-child(2n) { transform: translateY(18px); }
.review p { margin: 0; }
.review strong { display: block; margin-top: 15px; color: var(--blue-deep); }
.faq-list { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--border); border-radius: 16px; background: white; overflow: hidden; }
.faq-item button { width: 100%; min-height: 64px; padding: 16px 20px; border: 0; background: white; display: flex; align-items: center; justify-content: space-between; gap: 18px; color: var(--ink); text-align: left; font-weight: 900; }
.faq-item button::after { content: "+"; color: var(--blue); font-size: 24px; }
.faq-item.is-open button::after { content: "−"; }
.faq-answer { display: none; padding: 0 20px 20px; }
.faq-item.is-open .faq-answer { display: block; }
.cta-band { padding: 58px; text-align: center; border-radius: var(--radius-lg); color: white; background: radial-gradient(circle at 15% 20%, rgba(255,255,255,.22), transparent 27%), linear-gradient(135deg, var(--blue), var(--blue-deep)); }
.cta-band p { max-width: 720px; margin-left: auto; margin-right: auto; color: #eef6ff; }
.cta-band .download-btn { background: white; color: var(--blue-deep); box-shadow: none; }
.page-hero { padding: 78px 0 64px; background: radial-gradient(circle at 85% 20%, #dcecff, transparent 30%), linear-gradient(180deg, #fff, var(--blue-pale)); border-bottom: 1px solid var(--border); }
.page-hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 50px; align-items: center; }
.page-hero .lead { max-width: 760px; }
.page-hero-visual { padding: 28px; min-height: 340px; display: grid; place-items: center; background: rgba(255,255,255,.75); border: 1px solid var(--border); border-radius: 28px; }
.page-hero-visual img { max-height: 330px; object-fit: contain; }
.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.content-block { padding: 30px; border: 1px solid var(--border); border-radius: 20px; background: white; }
.content-block.accent { background: var(--blue-pale); }
.content-block h2 { font-size: 27px; }
.content-block h3 { margin-top: 24px; }
.number-list { counter-reset: item; list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
.number-list li { counter-increment: item; position: relative; padding: 18px 18px 18px 64px; background: white; border: 1px solid var(--border); border-radius: 16px; color: var(--text); }
.number-list li::before { content: counter(item); position: absolute; left: 17px; top: 17px; width: 32px; height: 32px; display: grid; place-items: center; border-radius: 10px; color: white; background: var(--blue); font-weight: 900; }
.notice { padding: 24px; border-left: 4px solid var(--blue); border-radius: 0 16px 16px 0; background: var(--blue-pale); }
.notice strong { display: block; margin-bottom: 8px; }
.compare-table { width: 100%; border-collapse: collapse; overflow: hidden; border-radius: 16px; border: 1px solid var(--border); background: white; }
.compare-table th, .compare-table td { padding: 15px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); }
.compare-table th { color: var(--blue-deep); background: var(--blue-pale); }
.compare-table tr:last-child td { border-bottom: 0; }
.site-footer { padding: 70px 0 24px; color: white; background: var(--footer); }
.footer-grid, .footer-alert, .footer-bottom { width: min(1180px, calc(100% - 40px)); margin-left: auto; margin-right: auto; }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr; gap: 34px; }
.footer-brand img { width: 160px; max-height: 44px; object-fit: contain; filter: brightness(0) invert(1); margin-bottom: 18px; }
.footer-brand p { max-width: 430px; color: #b8c8dd; }
.site-footer h2 { font-size: 15px; margin-bottom: 16px; color: white; }
.site-footer a { display: block; padding: 5px 0; color: #b8c8dd; font-size: 14px; }
.site-footer a:hover { color: white; }
.footer-alert { margin-top: 42px; padding: 18px 20px; border: 1px solid rgba(255,255,255,.16); border-radius: 15px; color: #d8e6f8; background: rgba(255,255,255,.06); }
.footer-bottom { margin-top: 24px; padding-top: 22px; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid rgba(255,255,255,.12); color: #8fa5c1; font-size: 13px; }
@media (max-width: 1120px) {
  .desktop-nav { display: none; }
  .nav-shell { justify-content: space-between; }
  .hero-grid, .page-hero-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .process { grid-template-columns: repeat(3, 1fr); }
  .process-step:nth-child(3)::after { display: none; }
}
@media (max-width: 860px) {
  .section { padding: 72px 0; }
  .hero-grid, .page-hero-grid, .split-panel, .split-panel.reverse, .security-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 420px; }
  .capability-grid { grid-template-columns: 1fr 1fr; }
  .capability-item:nth-child(2) { border-right: 0; }
  .capability-item:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .category-grid { grid-template-columns: 1fr 1fr; }
  .category-card.wide { grid-column: span 1; }
  .dual-grid, .content-grid { grid-template-columns: 1fr; }
  .topic-panel.offset { margin-top: 0; }
  .review-grid { grid-template-columns: 1fr 1fr; }
  .timeline-item { grid-template-columns: 1fr auto; }
  .timeline-item time { grid-column: 1; }
  .timeline-item > div { grid-column: 1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .container, .footer-grid, .footer-alert, .footer-bottom { width: min(100% - 28px, 1180px); }
  .nav-shell { min-height: 68px; padding: 0 14px; gap: 10px; }
  .brand img { width: 126px; }
  .nav-actions { gap: 7px; }
  .nav-actions .download-btn { padding: 9px 12px; font-size: 14px; }
  .menu-toggle { width: 44px; height: 44px; }
  .hero { padding-top: 52px; }
  h1 { font-size: 39px; }
  h2 { font-size: 31px; }
  .hero-visual { min-height: 340px; }
  .hero-visual img { max-height: 330px; }
  .float-note { width: 145px; padding: 10px 12px; font-size: 11px; }
  .note-a { left: 0; }.note-b { right: 0; }.note-c { left: 4%; }
  .capability-grid, .category-grid, .review-grid, .security-list, .footer-grid { grid-template-columns: 1fr; }
  .capability-item { border-right: 0; border-bottom: 1px solid var(--border); }
  .capability-item:last-child { border-bottom: 0; }
  .split-panel, .topic-panel, .content-block { padding: 24px; }
  .media-frame { min-height: 300px; }
  .process { grid-template-columns: 1fr; }
  .process-step::after { display: none !important; }
  .review:nth-child(2n) { transform: none; }
  .timeline-item { grid-template-columns: 1fr; gap: 10px; }
  .timeline-item a { justify-self: start; }
  .cta-band { padding: 38px 22px; }
  .footer-bottom { flex-direction: column; }
  .compare-table { display: block; overflow-x: auto; }
}