:root {
  --blue: #2980FE;
  --blue-deep: #1767D6;
  --blue-soft: #EAF3FF;
  --blue-pale: #F5F8FD;
  --gray-soft: #F7F9FC;
  --white: #FFFFFF;
  --ink: #172033;
  --text: #465266;
  --muted: #718096;
  --border: #DCE6F2;
  --footer: #10233F;
  --shadow: 0 16px 42px rgba(23, 103, 214, .10);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", sans-serif; 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, input, textarea { font: inherit; }
button { color: inherit; }
.skip-link { position: fixed; top: 8px; left: 8px; transform: translateY(-150%); background: var(--ink); color: #fff; padding: 10px 14px; border-radius: 8px; z-index: 9999; }
.skip-link:focus { transform: none; }
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.94); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(220,230,242,.8); }
.header-inner { width: min(calc(100% - 40px), var(--container)); min-height: 74px; margin: 0 auto; display: flex; align-items: center; gap: 24px; }
.brand { flex: 0 0 auto; display: inline-flex; align-items: center; min-width: 138px; }
.brand img { max-width: 148px; max-height: 44px; object-fit: contain; }
.desktop-nav { flex: 1; display: flex; justify-content: center; align-items: center; gap: 4px; white-space: nowrap; }
.desktop-nav > a, .nav-trigger { min-height: 44px; padding: 9px 10px; border: 0; background: transparent; border-radius: 12px; color: var(--text); cursor: pointer; font-weight: 700; }
.desktop-nav > a:hover, .desktop-nav > a.active, .nav-trigger:hover, .nav-group.open .nav-trigger { color: var(--blue-deep); background: var(--blue-soft); }
.nav-group { position: relative; }
.mega-menu { position: absolute; top: calc(100% + 12px); left: 50%; transform: translate(-50%, 10px); width: min(760px, calc(100vw - 40px)); padding: 22px; border: 1px solid var(--border); border-radius: 24px; background: #fff; box-shadow: var(--shadow); opacity: 0; visibility: hidden; pointer-events: none; transition: .18s ease; display: grid; grid-template-columns: 210px 1fr; gap: 20px; }
.nav-group.open .mega-menu { opacity: 1; visibility: visible; pointer-events: auto; transform: translate(-50%, 0); }
.mega-intro { padding: 20px; border-radius: 18px; background: linear-gradient(145deg, var(--blue), var(--blue-deep)); color: #fff; }
.mega-intro span { font-size: 12px; letter-spacing: .12em; opacity: .82; }
.mega-intro strong { display: block; margin-top: 8px; font-size: 24px; }
.mega-intro p { margin: 10px 0 0; color: rgba(255,255,255,.86); font-size: 14px; }
.mega-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.mega-links a { padding: 13px 14px; border-radius: 14px; border: 1px solid transparent; }
.mega-links a:hover, .mega-links a:focus { border-color: var(--border); background: var(--blue-pale); }
.mega-links strong { display: block; color: var(--ink); }
.mega-links span { display: block; color: var(--muted); font-size: 13px; line-height: 1.55; }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.download-btn, .primary-btn, .secondary-btn, .text-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 22px; border-radius: 14px; font-weight: 800; transition: .18s ease; }
.download-btn, .primary-btn { color: #fff; background: linear-gradient(135deg, var(--blue), var(--blue-deep)); box-shadow: 0 10px 24px rgba(41,128,254,.22); }
.download-btn:hover, .primary-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(41,128,254,.28); }
.header-actions > .download-btn { min-height: 42px; padding: 9px 16px; border-radius: 12px; white-space: nowrap; }
.secondary-btn { color: var(--blue-deep); background: var(--blue-soft); }
.text-btn { min-height: auto; padding: 0; color: var(--blue-deep); border-radius: 0; }
.menu-toggle { width: 46px; height: 46px; border: 1px solid var(--border); background: #fff; border-radius: 13px; display: inline-flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; cursor: pointer; }
.menu-toggle span { width: 19px; height: 2px; background: var(--ink); border-radius: 2px; }
.menu-overlay { position: fixed; inset: 0; z-index: 1100; background: rgba(16,35,63,.42); opacity: 0; transition: opacity .22s ease; }
.menu-overlay.show { opacity: 1; }
.mobile-panel { position: fixed; z-index: 1200; top: 0; right: 0; width: min(92vw, 420px); height: 100dvh; background: #fff; padding: 18px; transform: translateX(104%); transition: transform .22s ease; overflow-y: auto; box-shadow: -16px 0 46px rgba(16,35,63,.16); }
.mobile-panel.open { transform: translateX(0); }
.mobile-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.menu-close { width: 46px; height: 46px; border: 0; background: var(--blue-soft); border-radius: 13px; font-size: 28px; cursor: pointer; }
.mobile-home, .mobile-about { display: block; padding: 15px 4px; font-weight: 800; border-bottom: 1px solid var(--border); }
.mobile-group { border-bottom: 1px solid var(--border); }
.mobile-group-toggle { width: 100%; min-height: 56px; display: flex; justify-content: space-between; align-items: center; border: 0; background: transparent; font-weight: 800; cursor: pointer; }
.mobile-group-links { padding: 0 0 10px 12px; }
.mobile-group-links a { display: block; min-height: 44px; padding: 9px 10px; border-radius: 10px; color: var(--text); }
.mobile-group-links a:hover { background: var(--blue-pale); color: var(--blue-deep); }
.mobile-panel > .download-btn { width: 100%; margin-top: 18px; }
main { min-height: 60vh; }
.container { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; }
.section { padding: 92px 0; }
.section-sm { padding: 64px 0; }
.section-soft { background: var(--blue-pale); }
.section-gray { background: var(--gray-soft); }
.section-title { max-width: 760px; margin-bottom: 36px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px; color: var(--blue-deep); font-size: 13px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.eyebrow::before { content: ''; width: 24px; height: 2px; background: var(--blue); }
h1, h2, h3 { margin: 0; line-height: 1.24; letter-spacing: -.025em; }
h1 { font-size: clamp(40px, 6vw, 72px); }
h2 { font-size: clamp(30px, 4.2vw, 48px); }
h3 { font-size: 22px; }
p { margin: 0; color: var(--text); }
.lead { margin-top: 20px; max-width: 760px; font-size: clamp(17px, 2vw, 20px); color: var(--text); }
.hero { position: relative; overflow: hidden; padding: 88px 0 70px; background: radial-gradient(circle at 82% 16%, rgba(41,128,254,.18), transparent 26%), linear-gradient(180deg, #fff, #F5F8FD); }
.hero::before { content: ''; position: absolute; width: 420px; height: 420px; border: 1px solid rgba(41,128,254,.18); border-radius: 50%; right: -160px; bottom: -210px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(360px, .9fr); align-items: center; gap: 48px; }
.hero-actions, .inline-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.hero-tags span { padding: 8px 12px; border: 1px solid var(--border); border-radius: 999px; background: rgba(255,255,255,.8); color: var(--text); font-size: 14px; font-weight: 700; }
.hero-visual { position: relative; min-height: 500px; display: grid; place-items: center; }
.hero-visual::before { content: ''; position: absolute; inset: 9% 4%; border-radius: 40px; background: linear-gradient(145deg, rgba(41,128,254,.10), rgba(255,255,255,.92)); border: 1px solid rgba(41,128,254,.18); transform: rotate(-3deg); }
.hero-visual img { position: relative; max-height: 480px; object-fit: contain; filter: drop-shadow(0 28px 36px rgba(23,103,214,.18)); }
.float-note { position: absolute; z-index: 2; max-width: 190px; padding: 13px 15px; background: rgba(255,255,255,.94); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow); font-size: 13px; font-weight: 800; color: var(--ink); }
.float-note.one { left: 0; top: 18%; }
.float-note.two { right: 0; top: 42%; }
.float-note.three { left: 7%; bottom: 12%; }
.capability-bar { position: relative; margin-top: -28px; z-index: 2; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; border: 1px solid var(--border); border-radius: 22px; box-shadow: var(--shadow); overflow: hidden; }
.capability-item { padding: 25px; }
.capability-item + .capability-item { border-left: 1px solid var(--border); }
.capability-item strong { display: block; margin-bottom: 6px; font-size: 18px; }
.capability-item p { font-size: 14px; }
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.category-card { min-height: 214px; padding: 25px; border: 1px solid var(--border); border-radius: 22px; background: #fff; display: flex; flex-direction: column; justify-content: space-between; transition: .18s ease; }
.category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(41,128,254,.34); }
.category-card.featured { grid-column: span 2; background: linear-gradient(135deg, var(--blue), var(--blue-deep)); }
.category-card.featured h3, .category-card.featured p, .category-card.featured a { color: #fff; }
.category-card.wide { grid-column: span 2; background: var(--blue-soft); }
.category-card p { margin: 12px 0 18px; font-size: 15px; }
.category-card a { color: var(--blue-deep); font-weight: 800; }
.media-panel { display: grid; grid-template-columns: minmax(320px,.85fr) minmax(0,1.15fr); gap: 42px; align-items: center; padding: 42px; border-radius: var(--radius-lg); background: linear-gradient(135deg, var(--blue-soft), #fff); border: 1px solid rgba(41,128,254,.16); }
.media-panel.reverse { grid-template-columns: minmax(0,1.15fr) minmax(320px,.85fr); }
.media-panel.reverse .media-visual { order: 2; }
.media-visual { min-height: 420px; display: grid; place-items: center; border-radius: 24px; background: #fff; overflow: hidden; }
.media-visual img { max-height: 400px; object-fit: contain; }
.check-list, .plain-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; }
.check-list li { position: relative; padding: 13px 15px 13px 46px; border: 1px solid var(--border); border-radius: 14px; background: rgba(255,255,255,.78); color: var(--text); }
.check-list li::before { content: '✓'; position: absolute; left: 15px; top: 12px; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; background: var(--blue-soft); color: var(--blue-deep); font-weight: 900; }
.split-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.topic-panel { padding: 34px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--border); }
.topic-panel.alt { margin-top: 46px; background: var(--blue-soft); }
.topic-panel p { margin-top: 16px; }
.topic-panel .plain-list li { padding: 11px 0; border-bottom: 1px solid var(--border); color: var(--text); }
.dark-feature { position: relative; overflow: hidden; padding: 46px; border-radius: 30px; background: linear-gradient(135deg, var(--footer), #194a86); color: #fff; }
.dark-feature::after { content: ''; position: absolute; width: 280px; height: 280px; right: -70px; top: -90px; border-radius: 50%; background: rgba(255,255,255,.06); }
.dark-feature h2, .dark-feature h3, .dark-feature p { color: #fff; }
.dark-feature .check-list { grid-template-columns: repeat(2, 1fr); }
.dark-feature .check-list li { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.15); color: #fff; }
.dark-feature .check-list li::before { background: rgba(255,255,255,.14); color: #fff; }
.process { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.process-step { position: relative; padding: 22px 18px; border-radius: 18px; background: #fff; border: 1px solid var(--border); }
.process-step span { display: inline-grid; width: 34px; height: 34px; place-items: center; border-radius: 11px; background: var(--blue); color: #fff; font-weight: 900; }
.process-step h3 { margin-top: 16px; font-size: 18px; }
.process-step p { margin-top: 10px; font-size: 14px; }
.process-step a { display: inline-block; margin-top: 14px; color: var(--blue-deep); font-weight: 800; }
.timeline { display: grid; gap: 14px; }
.timeline-item { display: grid; grid-template-columns: 130px 1fr auto; gap: 22px; align-items: center; padding: 20px 22px; border: 1px solid var(--border); border-radius: 16px; background: #fff; }
.timeline-item time { color: var(--blue-deep); font-weight: 800; }
.timeline-item a { color: var(--blue-deep); font-weight: 800; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.review { padding: 24px; border-radius: 20px; background: #fff; border: 1px solid var(--border); }
.review p { font-size: 15px; }
.review strong { display: block; margin-top: 16px; color: var(--blue-deep); }
.faq-list { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--border); border-radius: 16px; background: #fff; overflow: hidden; }
.faq-question { width: 100%; min-height: 62px; padding: 16px 20px; border: 0; background: transparent; display: flex; align-items: center; justify-content: space-between; gap: 20px; text-align: left; font-weight: 850; cursor: pointer; }
.faq-symbol { font-size: 22px; color: var(--blue-deep); }
.faq-answer { padding: 0 20px 20px; color: var(--text); }
.download-cta { padding: 52px; border-radius: 30px; background: linear-gradient(135deg, var(--blue), var(--blue-deep)); color: #fff; text-align: center; }
.download-cta h2, .download-cta p { color: #fff; }
.download-cta p { max-width: 720px; margin: 16px auto 0; opacity: .9; }
.download-cta .download-btn { margin-top: 24px; background: #fff; color: var(--blue-deep); box-shadow: none; }
.page-hero { padding: 78px 0 62px; background: radial-gradient(circle at 80% 12%, rgba(41,128,254,.16), transparent 28%), var(--blue-pale); }
.page-hero-grid { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(300px,.85fr); align-items: center; gap: 40px; }
.page-hero-visual { min-height: 320px; display: grid; place-items: center; border-radius: 28px; background: rgba(255,255,255,.72); border: 1px solid rgba(41,128,254,.16); }
.page-hero-visual img { max-height: 300px; object-fit: contain; }
.content-grid { display: grid; grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); gap: 36px; align-items: start; }
.sticky-index { position: sticky; top: 100px; padding: 24px; border-radius: 20px; background: var(--blue-pale); border: 1px solid var(--border); }
.sticky-index strong { display: block; margin-bottom: 12px; }
.sticky-index a { display: block; padding: 9px 0; color: var(--text); border-bottom: 1px solid var(--border); }
.article-stack { display: grid; gap: 20px; }
.article-card { padding: 30px; border-radius: 22px; background: #fff; border: 1px solid var(--border); }
.article-card h2 { font-size: clamp(26px, 3vw, 36px); }
.article-card p + p { margin-top: 14px; }
.article-card .check-list { grid-template-columns: repeat(2, 1fr); }
.data-table { width: 100%; border-collapse: collapse; margin-top: 22px; overflow: hidden; border-radius: 14px; }
.data-table th, .data-table td { padding: 14px 16px; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.data-table th { background: var(--blue-soft); color: var(--ink); }
.notice { padding: 20px 22px; border-left: 4px solid var(--blue); border-radius: 0 14px 14px 0; background: var(--blue-pale); color: var(--text); }
.site-footer { background: var(--footer); color: #fff; }
.footer-inner { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; padding: 64px 0 40px; display: grid; grid-template-columns: 1.05fr 1.95fr; gap: 60px; }
.footer-brand img { max-width: 160px; filter: brightness(0) invert(1); }
.footer-brand p { margin-top: 20px; color: rgba(255,255,255,.7); }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.footer-grid strong { display: block; margin-bottom: 14px; }
.footer-grid a { display: block; padding: 5px 0; color: rgba(255,255,255,.7); }
.footer-grid a:hover { color: #fff; }
.footer-note { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; padding: 22px 0 28px; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 28px; align-items: center; }
.footer-note p { max-width: 820px; color: rgba(255,255,255,.62); font-size: 13px; }
.footer-note span { white-space: nowrap; color: rgba(255,255,255,.72); }
@media (min-width: 1025px) { .menu-toggle, .mobile-panel, .menu-overlay { display: none !important; } }
@media (max-width: 1120px) {
  .desktop-nav { gap: 0; }
  .desktop-nav > a, .nav-trigger { padding-inline: 7px; font-size: 14px; }
  .brand { min-width: 122px; }
  .brand img { max-width: 132px; }
}
@media (max-width: 1024px) {
  .desktop-nav { display: none; }
  .header-inner { min-height: 68px; }
  .header-actions { margin-left: auto; }
  .hero-grid, .page-hero-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 420px; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .capability-item:nth-child(3) { border-left: 0; border-top: 1px solid var(--border); }
  .capability-item:nth-child(4) { border-top: 1px solid var(--border); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .category-card.featured, .category-card.wide { grid-column: auto; }
  .media-panel, .media-panel.reverse { grid-template-columns: 1fr; }
  .media-panel.reverse .media-visual { order: 0; }
  .process { grid-template-columns: repeat(3, 1fr); }
  .review-grid { grid-template-columns: repeat(2, 1fr); }
  .content-grid { grid-template-columns: 1fr; }
  .sticky-index { position: static; }
  .footer-inner { grid-template-columns: 1fr; gap: 34px; }
}
@media (max-width: 720px) {
  .header-inner, .container, .footer-inner, .footer-note { width: min(calc(100% - 28px), var(--container)); }
  .brand { min-width: 0; }
  .brand img { max-width: 120px; }
  .header-actions > .download-btn { min-height: 40px; padding: 8px 12px; font-size: 14px; }
  .menu-toggle { width: 42px; height: 42px; }
  .section { padding: 68px 0; }
  .section-sm { padding: 50px 0; }
  .hero { padding: 62px 0 54px; }
  .hero-grid { gap: 26px; }
  h1 { font-size: clamp(36px, 11vw, 54px); }
  .hero-actions .download-btn, .hero-actions .secondary-btn { width: 100%; }
  .hero-visual { min-height: 360px; }
  .hero-visual img { max-height: 340px; }
  .float-note { position: relative; inset: auto !important; max-width: none; width: calc(50% - 6px); display: inline-block; margin-top: 10px; vertical-align: top; }
  .capability-bar { margin-top: -14px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-item + .capability-item { border-left: 0; border-top: 1px solid var(--border); }
  .category-grid, .split-grid, .review-grid { grid-template-columns: 1fr; }
  .topic-panel.alt { margin-top: 0; }
  .media-panel { padding: 24px; }
  .media-visual { min-height: 300px; }
  .dark-feature { padding: 28px 22px; }
  .dark-feature .check-list, .article-card .check-list { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; gap: 8px; }
  .timeline-item a { justify-self: start; }
  .download-cta { padding: 38px 22px; }
  .page-hero { padding: 58px 0 50px; }
  .page-hero-visual { min-height: 260px; }
  .article-card { padding: 24px 20px; }
  .data-table { display: block; overflow-x: auto; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-note { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 410px) {
  .header-inner { gap: 8px; }
  .brand img { max-width: 104px; }
  .header-actions > .download-btn { padding-inline: 10px; }
  .header-actions { gap: 6px; }
  .float-note { width: 100%; }
}