:root {
  --navy: #08374b;
  --navy-900: #041f2d;
  --navy-800: #062a3b;
  --teal: #00aeca;
  --teal-dark: #007f9b;
  --sky: #eaf7fa;
  --ice: #f5fbfc;
  --ink: #17333f;
  --muted: #5c7580;
  --line: #d9e7eb;
  --white: #fff;
  --amber: #eea73a;
  --shadow: 0 18px 50px rgba(3, 37, 53, .10);
  --radius: 18px;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; color: var(--ink); background: var(--white); line-height: 1.65; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
:focus-visible { outline: 3px solid rgba(0,174,202,.4); outline-offset: 3px; }
.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 999; background: var(--white); color: var(--navy); padding: 10px 14px; border-radius: 8px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.94); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(217,231,235,.85); }
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.logo { flex: 0 1 auto; min-width: 0; }
.logo img { width: 230px; height: auto; }
.site-nav { display: flex; align-items: center; gap: 24px; font-size: .94rem; font-weight: 650; color: #365764; }
.site-nav a { position: relative; padding: 26px 0; }
.site-nav a:not(.button)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 19px; height: 2px; background: var(--teal); transition: right .2s ease; }
.site-nav a:not(.button):hover::after, .site-nav a[aria-current="page"]::after { right: 0; }
.button { display: inline-flex; white-space: nowrap; align-items: center; justify-content: center; gap: 10px; border: 1px solid transparent; border-radius: 999px; padding: 13px 21px; font-weight: 750; line-height: 1.15; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--teal); color: #002d3b; box-shadow: 0 9px 25px rgba(0,174,202,.25); }
.button-primary:hover { background: #13c0d8; }
.site-nav .nav-cta { padding: 11px 17px; border-radius: 10px; white-space: nowrap; box-shadow: 0 7px 18px rgba(0,174,202,.20); }
.button-secondary { background: rgba(255,255,255,.08); color: white; border-color: rgba(255,255,255,.35); }
.button-secondary:hover { background: rgba(255,255,255,.15); }
.button-outline { border-color: #bcd4dc; color: var(--navy); background: white; }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); background: white; border-radius: 12px; align-items: center; justify-content: center; cursor: pointer; }
.menu-toggle span, .menu-toggle::before, .menu-toggle::after { content: ""; display: block; width: 20px; height: 2px; background: var(--navy); margin: 4px auto; }
.hero { position: relative; overflow: hidden; background: var(--navy-900); color: white; min-height: 680px; display: flex; align-items: center; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,26,39,.97) 0%, rgba(4,31,45,.88) 46%, rgba(4,31,45,.36) 75%, rgba(4,31,45,.15) 100%), url('hero-data.webp') center/cover no-repeat; }
.hero::after { content: ""; position: absolute; width: 560px; height: 560px; border: 1px solid rgba(0,183,208,.24); border-radius: 50%; right: -230px; top: -230px; box-shadow: 0 0 0 75px rgba(0,183,208,.045), 0 0 0 150px rgba(0,183,208,.025); }
.hero-inner { position: relative; z-index: 2; padding: 110px 0 95px; max-width: 830px; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--teal); font-size: .79rem; text-transform: uppercase; letter-spacing: .16em; font-weight: 800; margin-bottom: 20px; }
.eyebrow::before { content: ""; width: 30px; height: 2px; background: currentColor; }
.hero h1 { font-size: clamp(2.65rem, 6vw, 5rem); line-height: 1.05; letter-spacing: -.045em; margin: 0 0 24px; max-width: 920px; }
.hero .lead { font-size: clamp(1.08rem, 2vw, 1.3rem); color: #d4e7ec; max-width: 720px; margin: 0 0 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; }
.hero-points { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,.12); margin-top: 70px; border: 1px solid rgba(255,255,255,.14); border-radius: 14px; overflow: hidden; max-width: 960px; }
.hero-point { background: rgba(4,31,45,.68); padding: 20px 22px; color: #d9ebef; font-size: .88rem; font-weight: 650; }
.section { padding: 96px 0; }
.section-sm { padding: 68px 0; }
.section-alt { background: var(--ice); }
.section-dark { background: var(--navy-900); color: white; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 44px; }
.section-head > div:first-child { max-width: 760px; }
.kicker { color: var(--teal-dark); font-size: .78rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 12px; }
.section-dark .kicker { color: var(--teal); }
h2 { margin: 0; color: var(--navy); font-size: clamp(2rem, 4vw, 3.35rem); letter-spacing: -.035em; line-height: 1.12; }
.section-dark h2 { color: white; }
h3 { color: var(--navy); line-height: 1.28; }
.section-intro { color: var(--muted); font-size: 1.07rem; max-width: 700px; margin: 16px 0 0; }
.section-dark .section-intro { color: #bdd3da; }
.service-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.service-card { position: relative; background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; min-height: 310px; overflow: hidden; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #b7d7df; }
.service-number { font-size: .78rem; font-weight: 850; color: var(--teal-dark); letter-spacing: .12em; }
.service-card h3 { font-size: 1.45rem; margin: 18px 0 12px; }
.service-card p { color: var(--muted); margin: 0 0 20px; }
.text-link { color: var(--teal-dark); font-weight: 800; display: inline-flex; align-items: center; gap: 8px; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.icon-box { width: 52px; height: 52px; border-radius: 14px; background: var(--sky); display: grid; place-items: center; color: var(--teal-dark); }
.icon-box svg { width: 26px; height: 26px; }
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 70px; align-items: center; }
.media-card { position: relative; border-radius: 24px; overflow: hidden; min-height: 510px; box-shadow: var(--shadow); }
.media-card img { width: 100%; height: 100%; min-height: 510px; object-fit: cover; }
.media-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(4,31,45,.48), transparent 55%); }
.stat-panel { position: absolute; z-index: 2; left: 24px; right: 24px; bottom: 24px; background: rgba(255,255,255,.94); backdrop-filter: blur(12px); padding: 20px 22px; border-radius: 14px; color: var(--navy); }
.stat-panel strong { display: block; font-size: 1.05rem; }
.stat-panel span { color: var(--muted); font-size: .91rem; }
.check-list { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 15px; }
.check-list li { display: grid; grid-template-columns: 24px 1fr; gap: 12px; align-items: start; color: #385560; }
.check-list li::before { content: "✓"; display: grid; place-items: center; width: 22px; height: 22px; background: var(--sky); color: var(--teal-dark); border-radius: 50%; font-size: .75rem; font-weight: 900; margin-top: 2px; }
.decision-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.decision { padding: 22px 18px; border-radius: 14px; border: 1px solid var(--line); background: white; min-height: 142px; }
.decision strong { display: block; color: var(--navy); margin-bottom: 8px; }
.decision span { color: var(--muted); font-size: .9rem; }
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.process-step { position: relative; padding: 34px 28px; background: white; }
.process-step + .process-step { border-left: 1px solid var(--line); }
.process-step .step { font-size: .74rem; font-weight: 850; color: var(--teal-dark); letter-spacing: .12em; }
.process-step h3 { font-size: 1.15rem; margin: 12px 0 8px; }
.process-step p { color: var(--muted); font-size: .93rem; margin: 0; }
.group-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.group-card { border-radius: var(--radius); padding: 30px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); }
.group-card .label { color: var(--teal); font-weight: 850; font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; }
.group-card h3 { color: white; font-size: 1.42rem; margin: 14px 0 10px; }
.group-card p { color: #bdd3da; margin: 0; }
.scope-note { margin-top: 24px; padding: 20px 24px; border-left: 3px solid var(--amber); background: rgba(255,255,255,.06); color: #d9e8ec; border-radius: 0 12px 12px 0; }
.insight-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; }
.feature-card { position: relative; min-height: 420px; border-radius: var(--radius); overflow: hidden; color: white; display: flex; align-items: end; padding: 32px; }
.feature-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.feature-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(4,31,45,.92), rgba(4,31,45,.14)); }
.feature-card-content { position: relative; z-index: 2; }
.feature-card h3 { color: white; font-size: 1.8rem; margin: 8px 0 10px; }
.feature-card p { color: #d9ebef; max-width: 560px; }
.feature-stack { display: grid; gap: 22px; }
.mini-feature { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: white; }
.mini-feature h3 { margin: 0 0 8px; }
.mini-feature p { color: var(--muted); margin: 0; }
.faq { display: grid; gap: 12px; max-width: 900px; margin: 0 auto; }
details { border: 1px solid var(--line); border-radius: 14px; background: white; padding: 0 22px; }
summary { cursor: pointer; list-style: none; font-weight: 750; color: var(--navy); padding: 20px 36px 20px 0; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; top: 17px; font-size: 1.35rem; color: var(--teal-dark); }
details[open] summary::after { content: "−"; }
details p { margin: 0 0 22px; color: var(--muted); }
.cta { border-radius: 24px; background: linear-gradient(115deg, var(--navy-900), #0b5366); color: white; padding: 58px; display: flex; align-items: center; justify-content: space-between; gap: 45px; box-shadow: var(--shadow); }
.cta h2 { color: white; font-size: clamp(2rem, 4vw, 3rem); }
.cta p { color: #c7dce2; max-width: 650px; margin: 14px 0 0; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; flex: 0 0 auto; }
.page-hero { padding: 112px 0 75px; background: linear-gradient(130deg, var(--navy-900), #0b5265); color: white; position: relative; overflow: hidden; }
.page-hero::after { content: ""; width: 520px; height: 520px; border: 1px solid rgba(0,183,208,.2); border-radius: 50%; position: absolute; right: -250px; top: -250px; box-shadow: 0 0 0 80px rgba(0,183,208,.04), 0 0 0 160px rgba(0,183,208,.025); }
.page-hero .container { position: relative; z-index: 2; }
.breadcrumbs { color: #9fc6d1; font-size: .86rem; margin-bottom: 24px; }
.breadcrumbs a:hover { color: white; }
.page-hero h1 { font-size: clamp(2.55rem, 6vw, 4.8rem); line-height: 1.07; letter-spacing: -.045em; margin: 0; max-width: 900px; }
.page-hero p { color: #c9dde3; font-size: 1.18rem; max-width: 760px; margin: 22px 0 0; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 70px; align-items: start; }
.prose h2 { font-size: clamp(1.75rem, 3vw, 2.45rem); margin: 55px 0 18px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.3rem; margin: 32px 0 12px; }
.prose p { color: #496570; }
.prose ul { color: #496570; padding-left: 20px; }
.prose li { margin-bottom: 9px; }
.sidebar-card { position: sticky; top: 102px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--ice); padding: 26px; }
.sidebar-card h3 { margin-top: 0; }
.sidebar-card ul { list-style: none; padding: 0; margin: 18px 0 24px; display: grid; gap: 9px; color: #496570; }
.sidebar-card li { padding-bottom: 9px; border-bottom: 1px solid var(--line); }
.card-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.info-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 27px; background: white; }
.info-card h3 { margin: 14px 0 8px; font-size: 1.2rem; }
.info-card p { color: var(--muted); margin: 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-box { border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.contact-item { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.contact-item:last-child { border-bottom: 0; }
.contact-item strong { display: block; color: var(--navy); }
.contact-item span, .contact-item a { color: var(--muted); }
.site-footer { background: var(--navy-900); color: #bdd3da; padding: 62px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1fr; gap: 40px; }
.footer-brand img { width: 245px; height: auto; filter: none; opacity: 1; }
.footer-brand p { max-width: 380px; font-size: .93rem; }
.footer-col h3 { color: white; font-size: .92rem; text-transform: uppercase; letter-spacing: .1em; margin: 0 0 17px; }
.footer-col a { display: block; margin: 9px 0; font-size: .92rem; }
.footer-col a:hover { color: white; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 22px; margin-top: 45px; display: flex; justify-content: space-between; gap: 25px; font-size: .82rem; }
.tag { display: inline-block; padding: 6px 10px; border-radius: 999px; background: var(--sky); color: var(--teal-dark); font-size: .78rem; font-weight: 750; margin: 4px 5px 4px 0; }
@media (max-width: 1000px) {
  .site-nav { position: fixed; top: 76px; left: 18px; right: 18px; background: white; border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); padding: 16px; display: none; align-items: stretch; flex-direction: column; gap: 0; }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 13px 10px; }
  .site-nav a::after { display: none; }
  .site-nav .button { margin-top: 8px; }
  .site-nav .nav-cta { width: 100%; padding: 12px 16px; border-radius: 10px; }
  .menu-toggle { display: block; }
  .hero-points { grid-template-columns: repeat(2, 1fr); }
  .split, .insight-grid, .contact-grid { grid-template-columns: 1fr; }
  .media-card { min-height: 430px; }
  .decision-grid { grid-template-columns: repeat(3, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); }
  .process-step:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .process-step:nth-child(4) { border-top: 1px solid var(--line); }
  .content-grid { grid-template-columns: 1fr; gap: 45px; }
  .sidebar-card { position: static; }
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .logo img { width: 190px; }
  .hero { min-height: auto; }
  .hero::before { background: linear-gradient(90deg, rgba(3,26,39,.96), rgba(4,31,45,.72)), url('hero-data.webp') 62% center/cover no-repeat; }
  .hero-inner { padding: 82px 0 70px; }
  .hero h1 { font-size: 2.75rem; }
  .hero-points { grid-template-columns: 1fr; margin-top: 48px; }
  .section, .section-sm { padding: 70px 0; }
  .section-head { display: block; }
  .section-head .button { margin-top: 22px; }
  .service-grid, .group-grid, .card-grid-3 { grid-template-columns: 1fr; }
  .service-card { min-height: auto; padding: 28px; }
  .decision-grid { grid-template-columns: 1fr 1fr; }
  .process { grid-template-columns: 1fr; }
  .process-step + .process-step, .process-step:nth-child(3), .process-step:nth-child(4) { border-left: 0; border-top: 1px solid var(--line); }
  .cta { padding: 36px 26px; display: block; }
  .cta-actions { margin-top: 25px; }
  .page-hero { padding: 85px 0 60px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { display: block; }
}
@media (max-width: 480px) {
  .nav-wrap { min-height: 68px; gap: 12px; }
  .site-nav { top: 68px; }
  .logo img { width: 172px; }
  .hero h1 { font-size: 2.35rem; }
  .decision-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero-actions .button, .cta-actions .button { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* Bilingual navigation and service dropdown */
.nav-dropdown { position: relative; display: flex; align-items: center; }
.nav-dropdown-toggle { border: 0; background: transparent; color: inherit; font: inherit; font-weight: 650; cursor: pointer; padding: 26px 0; display: inline-flex; align-items: center; gap: 5px; position: relative; }
.nav-dropdown-toggle::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 19px; height: 2px; background: var(--teal); transition: right .2s ease; }
.nav-dropdown:hover .nav-dropdown-toggle::after, .nav-dropdown.open .nav-dropdown-toggle::after, .nav-dropdown.current .nav-dropdown-toggle::after { right: 0; }
.nav-chevron { font-size: 1rem; line-height: 1; transform: translateY(-1px); transition: transform .2s ease; }
.nav-dropdown.open .nav-chevron { transform: rotate(180deg) translateY(1px); }
.nav-dropdown-menu { position: absolute; top: calc(100% - 8px); left: -18px; width: 310px; padding: 10px; border: 1px solid var(--line); border-radius: 14px; background: white; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(-6px); transition: opacity .18s ease, transform .18s ease, visibility .18s ease; z-index: 80; }
.nav-dropdown-menu a { display: block; padding: 11px 12px !important; border-radius: 9px; line-height: 1.35; }
.nav-dropdown-menu a::after { display: none !important; }
.nav-dropdown-menu a:hover { background: var(--ice); color: var(--navy); }
.nav-dropdown-menu .dropdown-overview { color: var(--teal-dark); font-weight: 800; border-bottom: 1px solid var(--line); border-radius: 9px 9px 0 0; margin-bottom: 5px; }
.nav-dropdown:hover .nav-dropdown-menu, .nav-dropdown:focus-within .nav-dropdown-menu, .nav-dropdown.open .nav-dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-switch { border: 1px solid var(--line); padding: 7px 10px !important; border-radius: 9px; line-height: 1; font-size: .82rem; font-weight: 800; }
.lang-switch::after { display:none !important; }
.lang-switch:hover { border-color: #b7d7df; background: var(--ice); }
.link-on-dark { color: #62dded; }
.formal-valuation-note { margin-top: 28px; padding: 18px 20px; border-left: 3px solid var(--teal); background: var(--ice); border-radius: 0 10px 10px 0; }
[lang="zh-HK"] body { font-family: -apple-system, BlinkMacSystemFont, "PingFang HK", "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", "Segoe UI", Arial, sans-serif; }
[lang="zh-HK"] .hero h1, [lang="zh-HK"] .page-hero h1, [lang="zh-HK"] h2 { letter-spacing: -.02em; }
@media (max-width: 1000px) {
  .nav-dropdown { display: block; }
  .nav-dropdown-toggle { width: 100%; justify-content: space-between; padding: 13px 10px; text-align: left; }
  .nav-dropdown-toggle::after { display:none; }
  .nav-dropdown-menu { position: static; width: auto; border: 0; box-shadow: none; padding: 0 0 4px 14px; opacity: 1; visibility: visible; transform: none; display: none; }
  .nav-dropdown.open .nav-dropdown-menu { display: block; }
  .nav-dropdown:hover .nav-dropdown-menu:not(:focus-within) { display: none; }
  .nav-dropdown.open:hover .nav-dropdown-menu { display:block; }
  .nav-dropdown-menu a { padding: 10px 12px !important; font-size: .9rem; }
  .lang-switch { margin: 6px 10px; width: fit-content; }
}