:root {
  --blue: #2980FE;
  --blue-dark: #1767D6;
  --blue-soft: #EAF3FF;
  --blue-faint: #F5F8FD;
  --gray: #F7F9FC;
  --white: #FFFFFF;
  --ink: #172033;
  --body: #465266;
  --muted: #718096;
  --line: #DCE6F2;
  --footer: #10233F;
  --shadow: 0 18px 50px rgba(31, 87, 156, .10);
  --radius: 24px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", sans-serif; color: var(--ink); background: var(--white); line-height: 1.75; 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: 9999; padding: 10px 16px; background: var(--ink); 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); backdrop-filter: blur(18px); border-bottom: 1px solid rgba(220,230,242,.8); }
.header-inner { max-width: 1380px; margin: 0 auto; min-height: 76px; padding: 0 28px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand img { object-fit: contain; }
.desktop-nav { display: flex; align-items: center; gap: 5px; margin-left: auto; white-space: nowrap; }
.desktop-nav > a, .nav-cluster > a { display: flex; align-items: center; min-height: 44px; padding: 8px 10px; border-radius: 12px; color: #33415a; font-weight: 650; font-size: 15px; }
.desktop-nav > a:hover, .nav-cluster > a:hover, .desktop-nav a[aria-current="page"] { color: var(--blue-dark); background: var(--blue-faint); }
.nav-cluster { position: relative; }
.nav-cluster > a::after { content: "⌄"; margin-left: 5px; color: var(--muted); }
.mega-menu { position: absolute; left: 50%; top: calc(100% + 12px); width: 760px; padding: 22px; display: grid; grid-template-columns: 1.1fr 1fr 1fr; gap: 10px; background: rgba(255,255,255,.98); border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translate(-50%, 8px); transition: .18s ease; }
.nav-cluster:hover .mega-menu, .nav-cluster:focus-within .mega-menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.mega-menu > div { grid-row: span 2; padding: 16px; border-radius: 18px; background: linear-gradient(135deg, var(--blue-soft), #fff); }
.mega-menu strong { display: block; margin-bottom: 6px; color: var(--blue-dark); font-size: 18px; }
.mega-menu p { margin: 0; color: var(--body); font-size: 14px; }
.mega-menu > a { padding: 12px 14px; border-radius: 14px; border: 1px solid transparent; }
.mega-menu > a:hover, .mega-menu > a:focus { border-color: var(--line); background: var(--gray); }
.mega-menu b, .mega-menu span { display: block; }
.mega-menu b { font-size: 15px; }
.mega-menu span { color: var(--muted); font-size: 13px; }
.small-menu { width: 650px; }
.header-actions { display: flex; align-items: center; gap: 10px; }
.download-btn { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 12px 24px; color: white; background: linear-gradient(135deg, var(--blue), var(--blue-dark)); border-radius: 14px; font-weight: 750; box-shadow: 0 12px 30px rgba(41,128,254,.22); transition: transform .2s ease, box-shadow .2s ease; }
.download-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(41,128,254,.28); }
.download-btn.compact { min-height: 44px; padding: 9px 17px; white-space: nowrap; }
.menu-toggle { width: 48px; min-height: 44px; padding: 7px; display: grid; place-content: center; gap: 4px; color: var(--ink); background: var(--gray); border: 1px solid var(--line); border-radius: 13px; cursor: pointer; }
.menu-toggle span { display: block; width: 19px; height: 2px; background: currentColor; border-radius: 99px; }
.menu-toggle em { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.menu-overlay { position: fixed; inset: 0; z-index: 1090; background: rgba(16,35,63,.38); opacity: 0; visibility: hidden; transition: .2s ease; }
.menu-overlay.is-open { opacity: 1; visibility: visible; }
.mobile-menu { position: fixed; top: 0; right: 0; z-index: 1100; width: min(440px, 92vw); height: 100dvh; padding: 24px; background: white; overflow-y: auto; transform: translateX(105%); transition: .25s ease; box-shadow: -20px 0 50px rgba(16,35,63,.18); }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.menu-close { width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 14px; background: var(--gray); font-size: 30px; cursor: pointer; }
.mobile-home { display: flex; align-items: center; min-height: 48px; padding: 10px 4px; font-weight: 750; border-bottom: 1px solid var(--line); }
.mobile-group { border-bottom: 1px solid var(--line); }
.mobile-group > button { width: 100%; min-height: 52px; padding: 10px 4px; display: flex; justify-content: space-between; align-items: center; border: 0; background: none; font-weight: 750; color: var(--ink); cursor: pointer; }
.mobile-group > div { display: none; padding: 0 0 12px; grid-template-columns: 1fr 1fr; gap: 8px; }
.mobile-group.is-open > div { display: grid; }
.mobile-group a { min-height: 44px; padding: 10px 12px; display: flex; align-items: center; border-radius: 12px; background: var(--blue-faint); color: var(--body); }
.mobile-download { width: 100%; margin-top: 22px; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.section { padding: 92px 0; }
.section-tight { padding: 64px 0; }
.section-soft { background: var(--blue-faint); }
.section-blue { background: linear-gradient(135deg, #102f5d 0%, #1767d6 58%, #dcecff 58.2%, #f6faff 100%); color: white; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px; color: var(--blue-dark); font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--blue); }
h1, h2, h3 { margin: 0 0 18px; line-height: 1.18; letter-spacing: -.025em; }
h1 { font-size: clamp(42px, 6vw, 76px); }
h2 { font-size: clamp(30px, 4vw, 48px); }
h3 { font-size: 22px; }
p { margin: 0 0 18px; color: var(--body); }
.lead { font-size: 19px; color: #3f4e67; }
.hero { position: relative; overflow: hidden; padding: 76px 0 72px; background: radial-gradient(circle at 85% 20%, rgba(41,128,254,.16), transparent 28%), linear-gradient(180deg, #fff, #f7fbff); }
.hero::before { content: ""; position: absolute; width: 500px; height: 500px; left: -280px; top: -220px; border: 1px solid rgba(41,128,254,.15); border-radius: 50%; box-shadow: 0 0 0 60px rgba(41,128,254,.025), 0 0 0 120px rgba(41,128,254,.018); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.16fr .84fr; align-items: center; gap: 56px; }
.hero-copy .lead { max-width: 760px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 26px; }
.btn-secondary { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 11px 22px; border: 1px solid var(--line); border-radius: 14px; background: white; color: var(--ink); font-weight: 750; }
.btn-link { display: inline-flex; align-items: center; gap: 8px; color: var(--blue-dark); font-weight: 750; }
.btn-link::after { content: "→"; transition: transform .2s ease; }
.btn-link:hover::after { transform: translateX(4px); }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-row span { padding: 8px 12px; border: 1px solid #d4e5fb; border-radius: 999px; background: rgba(255,255,255,.8); color: #2e5d95; font-size: 14px; font-weight: 700; }
.hero-product { position: relative; min-height: 520px; display: grid; place-items: center; }
.hero-product::before { content: ""; position: absolute; inset: 8% 4%; border-radius: 42% 58% 56% 44% / 48% 40% 60% 52%; background: linear-gradient(145deg, #dfeeff, #f7fbff); transform: rotate(-5deg); }
.hero-product > img { position: relative; max-height: 500px; object-fit: contain; filter: drop-shadow(0 30px 45px rgba(26,74,130,.2)); }
.float-note { position: absolute; z-index: 2; width: 190px; padding: 14px 16px; border: 1px solid rgba(220,230,242,.9); border-radius: 16px; background: rgba(255,255,255,.9); box-shadow: var(--shadow); color: var(--body); font-size: 14px; font-weight: 700; backdrop-filter: blur(8px); }
.float-note strong { display: block; color: var(--ink); }
.float-note.one { left: -15px; top: 17%; }
.float-note.two { right: -10px; top: 42%; }
.float-note.three { left: 8%; bottom: 8%; }
.capability-bar { margin-top: -30px; position: relative; z-index: 4; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); background: white; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); overflow: hidden; }
.capability-grid article { padding: 24px; border-right: 1px solid var(--line); }
.capability-grid article:last-child { border-right: 0; }
.capability-grid h3 { margin-bottom: 8px; font-size: 18px; }
.capability-grid p { margin: 0; font-size: 14px; }
.section-head { max-width: 760px; margin-bottom: 40px; }
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.category-card { position: relative; min-height: 220px; padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: white; overflow: hidden; transition: transform .2s ease, box-shadow .2s ease; }
.category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.category-card::after { content: attr(data-index); position: absolute; right: 20px; bottom: 8px; color: rgba(41,128,254,.09); font-size: 74px; font-weight: 900; line-height: 1; }
.category-card.wide { grid-column: span 2; background: linear-gradient(135deg, var(--blue-soft), white); }
.category-card h3 { position: relative; z-index: 1; }
.category-card p { position: relative; z-index: 1; max-width: 520px; }
.category-card a { position: relative; z-index: 1; color: var(--blue-dark); font-weight: 750; }
.feature-panel { display: grid; grid-template-columns: .88fr 1.12fr; gap: 36px; align-items: center; padding: 42px; border-radius: 30px; background: linear-gradient(145deg, #dcecff, #f7fbff); }
.feature-image { min-height: 460px; display: grid; place-items: center; border-radius: 24px; background: white; box-shadow: var(--shadow); }
.feature-image img { max-height: 420px; object-fit: contain; }
.white-panel { padding: 32px; border: 1px solid rgba(220,230,242,.9); border-radius: 24px; background: rgba(255,255,255,.9); }
.check-list, .plain-list { list-style: none; padding: 0; margin: 22px 0; }
.check-list li { position: relative; padding: 10px 0 10px 34px; border-bottom: 1px dashed var(--line); color: var(--body); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 10px; width: 23px; height: 23px; display: grid; place-items: center; border-radius: 50%; background: var(--blue-soft); color: var(--blue-dark); font-weight: 900; font-size: 13px; }
.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.offset-card { padding: 36px; border: 1px solid var(--line); border-radius: 26px; background: white; box-shadow: 0 10px 40px rgba(31,87,156,.06); }
.offset-card:nth-child(2) { margin-top: 54px; background: linear-gradient(160deg, var(--blue-faint), white); }
.topic-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; align-items: stretch; }
.topic-card { padding: 38px; border-radius: 28px; background: #eef5ff; }
.topic-card.alt { background: #f8fafc; border: 1px solid var(--line); }
.topic-media { margin-top: 28px; min-height: 260px; display: grid; place-items: center; border-radius: 22px; background: white; overflow: hidden; }
.topic-media img { max-height: 290px; object-fit: contain; }
.security-layout { display: grid; grid-template-columns: .95fr 1.05fr; gap: 42px; align-items: center; }
.section-blue p, .section-blue .check-list li { color: rgba(255,255,255,.82); }
.section-blue .check-list li { border-color: rgba(255,255,255,.18); }
.section-blue .check-list li::before { background: rgba(255,255,255,.14); color: white; }
.security-box { padding: 34px; border-radius: 26px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.18); backdrop-filter: blur(10px); }
.media-split { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: center; }
.media-split.reverse .media-visual { order: 2; }
.media-visual { min-height: 390px; padding: 30px; display: grid; place-items: center; border-radius: 28px; background: var(--blue-faint); }
.media-visual img { max-height: 340px; object-fit: contain; }
.audit-panel { display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; }
.audit-image, .audit-list { padding: 34px; border-radius: 26px; }
.audit-image { background: linear-gradient(145deg, #e6f1ff, #fff); }
.audit-image img { max-height: 300px; margin: 10px auto; object-fit: contain; }
.audit-list { border: 1px solid var(--line); background: white; }
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.step { position: relative; padding: 24px 18px; border-top: 3px solid var(--blue); background: var(--blue-faint); border-radius: 0 0 18px 18px; }
.step::before { content: attr(data-step); display: block; margin-bottom: 16px; color: var(--blue); font-size: 28px; font-weight: 900; }
.step h3 { font-size: 17px; }
.step p { font-size: 14px; }
.step a { color: var(--blue-dark); font-size: 14px; font-weight: 750; }
.dual-cta { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.dual-cta article { padding: 36px; border-radius: 26px; background: white; border: 1px solid var(--line); }
.dual-cta article:first-child { background: linear-gradient(135deg, #dfeeff, white); }
.timeline { display: grid; gap: 0; border-left: 2px solid #cfe2fb; margin-left: 10px; }
.timeline article { position: relative; padding: 0 0 28px 30px; }
.timeline article::before { content: ""; position: absolute; left: -8px; top: 6px; width: 14px; height: 14px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 5px var(--blue-soft); }
.timeline time { color: var(--blue-dark); font-size: 13px; font-weight: 800; }
.timeline h3 { margin: 6px 0 8px; font-size: 20px; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.review { padding: 28px; border-radius: 22px; border: 1px solid var(--line); background: white; }
.review:nth-child(2), .review:nth-child(5) { background: var(--blue-faint); }
.review p { margin: 0; }
.review strong { display: block; margin-top: 18px; color: var(--blue-dark); }
.faq-list { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: 18px; background: white; overflow: hidden; }
.faq-item > button { width: 100%; min-height: 58px; padding: 16px 20px; display: flex; justify-content: space-between; align-items: center; text-align: left; border: 0; background: transparent; color: var(--ink); font-weight: 800; cursor: pointer; }
.faq-item > button::after { content: "+"; font-size: 24px; color: var(--blue); }
.faq-item.is-open > button::after { content: "−"; }
.faq-answer { display: none; padding: 0 20px 20px; }
.faq-item.is-open .faq-answer { display: block; }
.download-cta { padding: 56px; text-align: center; border-radius: 30px; background: radial-gradient(circle at 20% 10%, rgba(255,255,255,.22), transparent 30%), linear-gradient(135deg, #2980fe, #1767d6); color: white; }
.download-cta p { max-width: 720px; margin: 0 auto 24px; color: rgba(255,255,255,.86); }
.download-cta .download-btn { background: white; color: var(--blue-dark); }
.detail-hero { padding: 72px 0 58px; background: linear-gradient(180deg, #f7fbff, white); border-bottom: 1px solid var(--line); }
.detail-hero .container { display: grid; grid-template-columns: 1fr .65fr; align-items: end; gap: 44px; }
.detail-hero h1 { font-size: clamp(38px, 5vw, 62px); }
.detail-summary { padding: 24px; border-radius: 22px; background: white; border: 1px solid var(--line); box-shadow: var(--shadow); }
.detail-summary strong { display: block; margin-bottom: 8px; color: var(--blue-dark); }
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.info-card { padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: white; }
.info-card p:last-child { margin-bottom: 0; }
.process-list { counter-reset: process; display: grid; gap: 16px; }
.process-item { counter-increment: process; display: grid; grid-template-columns: 64px 1fr; gap: 18px; padding: 24px; border: 1px solid var(--line); border-radius: 22px; background: white; }
.process-item::before { content: counter(process, decimal-leading-zero); width: 54px; height: 54px; display: grid; place-items: center; border-radius: 18px; background: var(--blue-soft); color: var(--blue-dark); font-weight: 900; }
.notice-band { padding: 28px 32px; border-left: 5px solid var(--blue); border-radius: 0 20px 20px 0; background: var(--blue-faint); }
.data-table { width: 100%; border-collapse: collapse; overflow: hidden; border-radius: 18px; box-shadow: 0 0 0 1px var(--line); }
.data-table th, .data-table td { padding: 16px; text-align: left; border-bottom: 1px solid var(--line); }
.data-table th { background: var(--blue-faint); color: var(--blue-dark); }
.data-table tr:last-child td { border-bottom: 0; }
.site-footer { padding: 62px 0 0; background: var(--footer); color: white; }
.footer-grid { width: min(1180px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 34px; }
.footer-brand p { max-width: 420px; color: rgba(255,255,255,.66); }
.footer-grid h2 { margin-bottom: 14px; font-size: 16px; color: white; }
.footer-grid a { display: block; padding: 4px 0; color: rgba(255,255,255,.68); }
.footer-grid a:hover { color: white; }
.footer-note { width: min(1180px, calc(100% - 40px)); margin: 38px auto 0; padding: 18px 20px; border: 1px solid rgba(255,255,255,.1); border-radius: 16px; background: rgba(255,255,255,.04); color: rgba(255,255,255,.72); }
.footer-bottom { width: min(1180px, calc(100% - 40px)); margin: 28px auto 0; padding: 22px 0; display: flex; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.52); }
@media (max-width: 1180px) {
  .desktop-nav { display: none; }
  .header-actions { margin-left: auto; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .category-card.wide { grid-column: span 1; }
}
@media (max-width: 860px) {
  .section { padding: 72px 0; }
  .hero-grid, .feature-panel, .split-grid, .topic-grid, .security-layout, .media-split, .audit-panel, .dual-cta, .detail-hero .container { grid-template-columns: 1fr; }
  .hero { padding-top: 54px; }
  .hero-product { min-height: 430px; }
  .hero-product > img { max-height: 400px; }
  .float-note { width: 170px; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .capability-grid article:nth-child(2) { border-right: 0; }
  .capability-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .offset-card:nth-child(2) { margin-top: 0; }
  .media-split.reverse .media-visual { order: 0; }
  .review-grid, .info-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .header-inner { min-height: 66px; padding: 0 16px; gap: 10px; }
  .brand img { width: 132px; }
  .download-btn.compact { min-height: 42px; padding: 8px 12px; font-size: 14px; }
  .menu-toggle { width: 44px; }
  .container { width: min(100% - 28px, 1180px); }
  .section { padding: 58px 0; }
  .section-tight { padding: 48px 0; }
  h1 { font-size: 40px; }
  h2 { font-size: 31px; }
  .hero { padding: 44px 0 54px; }
  .hero-actions > * { width: 100%; }
  .hero-product { min-height: 380px; }
  .hero-product > img { max-height: 350px; }
  .float-note { width: calc(50% - 12px); padding: 10px; font-size: 12px; }
  .float-note.one { left: 0; top: 12%; }
  .float-note.two { right: 0; top: 33%; }
  .float-note.three { left: 0; bottom: 3%; }
  .capability-bar { margin-top: -18px; }
  .capability-grid, .category-grid, .review-grid, .info-grid, .steps { grid-template-columns: 1fr; }
  .capability-grid article { border-right: 0; border-bottom: 1px solid var(--line); }
  .capability-grid article:last-child { border-bottom: 0; }
  .category-card, .feature-panel, .white-panel, .offset-card, .topic-card, .security-box, .audit-image, .audit-list, .dual-cta article { padding: 24px; }
  .feature-image, .media-visual { min-height: 300px; }
  .feature-image img, .media-visual img { max-height: 280px; }
  .section-blue { background: linear-gradient(180deg, #102f5d 0%, #1767d6 68%, #e6f1ff 68.2%, #f6faff 100%); }
  .process-item { grid-template-columns: 1fr; }
  .process-item::before { width: 48px; height: 48px; }
  .download-cta { padding: 36px 22px; }
  .data-table { display: block; overflow-x: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}