@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600&family=Noto+Sans+SC:wght@300;400;500;600&display=swap');

:root {
  --navy-deep: #213F4A;
  --navy: #2a3a4a;
  --acid: #DBE442;
  --paper: #f5f6f0;
  --grey: #d0d3cc;
  --white: #ffffff;
  --ink: #17222c;
  --max: 1480px;
  --gutter: clamp(20px, 4vw, 64px);
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Noto Sans SC', 'Montserrat', sans-serif;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
body[data-lang="en"] { font-family: 'Montserrat', sans-serif; }
body[data-lang="zh"] .en,
body[data-lang="en"] .zh { display: none !important; }

a { color: inherit; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }

.skip-link {
  position: fixed; top: 8px; left: 8px; z-index: 100;
  padding: 10px 14px; background: var(--acid); color: var(--navy-deep);
  transform: translateY(-150%); transition: transform .2s;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: relative; z-index: 20; background: var(--navy-deep); color: var(--white);
}
.nav {
  min-height: 90px; max-width: var(--max); margin: auto; padding: 0 var(--gutter);
  display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: clamp(22px, 4vw, 60px);
}
.brand { text-decoration: none; display: inline-flex; align-items: center; gap: 13px; width: fit-content; }
.brand-symbol { width: 46px; height: 46px; flex: 0 0 46px; background: url('_images/8VB-symbol.png') center / contain no-repeat; }
.brand-name { color: var(--white); font-size: 20px; font-weight: 500; letter-spacing: -.025em; }
.nav-links { display: flex; align-items: center; gap: clamp(18px, 2.5vw, 38px); }
.nav-links a {
  position: relative; color: rgba(255,255,255,.68); text-decoration: none;
  font-size: 12px; letter-spacing: .08em; text-transform: uppercase; padding: 8px 0;
}
body[data-lang="zh"] .nav-links a { letter-spacing: .12em; }
.nav-links a::after { content: ''; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px; border-radius: 0; background: var(--acid); transform: scaleX(0); transform-origin: center; transition: transform .3s var(--ease); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--white); }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { transform: scaleX(1); }
.lang-toggle {
  display: flex; align-items: center; background: rgba(255,255,255,.08); border-radius: 100px; padding: 3px;
}
.lang-toggle button {
  border: 0; background: transparent; color: rgba(255,255,255,.58); cursor: pointer;
  border-radius: 100px; min-width: 40px; padding: 7px 9px; font-size: 11px; letter-spacing: .08em;
}
.lang-toggle button[aria-pressed="true"] { background: var(--acid); color: var(--navy-deep); }
.menu-button { display: none; border: 0; background: transparent; color: white; padding: 8px; cursor: pointer; }
.menu-button span { display: block; width: 24px; height: 1px; background: currentColor; margin: 6px 0; }

.site-header,
.hero,
.page-hero,
.section.dark,
.site-footer { background-color: var(--navy-deep); background-image: none; }
.hero { position: relative; color: var(--white); overflow: hidden; }
.hero-grid { min-height: calc(100svh - 90px); max-width: var(--max); margin: auto; }
.hero-copy { min-height: calc(100svh - 90px); padding: clamp(70px, 10vh, 130px) var(--gutter) clamp(60px, 9vh, 110px); display: flex; flex-direction: column; justify-content: space-between; }
.kicker { margin: 0 0 30px; color: var(--acid); font-size: 11px; font-weight: 500; letter-spacing: .18em; text-transform: uppercase; }
.display {
  max-width: 1280px; margin: 0; font-size: clamp(52px, 7.7vw, 124px); font-weight: 300;
  line-height: .96; letter-spacing: -.055em;
}
body[data-lang="zh"] .display { letter-spacing: -.07em; line-height: 1.04; max-width: 900px; }
.display em { color: var(--acid); font-style: normal; }
.hero-bottom { margin-top: 70px; }
.hero-position { margin: 0; color: rgba(255,255,255,.73); font-size: clamp(15px, 1.4vw, 20px); line-height: 1.6; }
.section { padding: clamp(80px, 11vw, 160px) var(--gutter); }
.section-inner { max-width: var(--max); margin: auto; }
.section.dark { background: var(--navy-deep); color: var(--white); }
.section.acid { background: var(--acid); color: var(--navy-deep); }
.section-head { display: grid; grid-template-columns: minmax(140px, .33fr) 1fr; gap: 40px; align-items: start; margin-bottom: clamp(60px, 8vw, 110px); }
.label { margin: 7px 0 0; color: #6f7776; font-size: 12px; font-weight: 600; letter-spacing: .17em; text-transform: uppercase; }
.dark .label { color: var(--acid); }
.section-title { max-width: 980px; margin: 0; font-size: clamp(38px, 5.2vw, 78px); font-weight: 300; line-height: 1.08; letter-spacing: -.045em; }
body[data-lang="zh"] .section-title { line-height: 1.2; }
.lede { max-width: 790px; margin: 28px 0 0; font-size: clamp(17px, 1.6vw, 23px); line-height: 1.68; color: #586261; }
.dark .lede { color: rgba(255,255,255,.66); }

.crossings { display: grid; gap: 12px; }
.crossing-row {
  display: grid; grid-template-columns: 1fr 50px 1fr; gap: 26px; align-items: center;
  padding: 25px 28px; background: var(--white); font-size: clamp(18px, 2vw, 29px); font-weight: 300;
}
.crossing-row span:last-child { font-weight: 500; }
.crossing-arrow { color: #7a8380; text-align: center; }

.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.service-card { min-height: 230px; padding: 30px; background: rgba(255,255,255,.055); display: flex; flex-direction: column; justify-content: flex-start; }
.service-card h3 { margin: 0 0 16px; font-size: clamp(22px, 2vw, 30px); font-weight: 400; line-height: 1.25; }
.service-card p { margin: 0; color: rgba(255,255,255,.58); font-size: 13px; line-height: 1.65; }
.text-link { display: inline-flex; gap: 14px; align-items: center; margin-top: 42px; color: inherit; text-decoration: none; font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.text-link::after,
.footer-book::after {
  content: ''; display: inline-block; width: 13px; height: 13px; flex: 0 0 13px;
  color: var(--acid); border-top: 1.5px solid currentColor; border-right: 1.5px solid currentColor;
  background: linear-gradient(to bottom right, transparent 46%, currentColor 47%, currentColor 53%, transparent 54%);
  transition: transform .25s;
}
.text-link:hover::after { transform: translate(3px,-3px); }

.statement { display: grid; grid-template-columns: 1.2fr .8fr; gap: 8vw; align-items: end; }
.statement blockquote { margin: 0; font-size: clamp(38px, 5.4vw, 82px); font-weight: 300; line-height: 1.08; letter-spacing: -.05em; }
.statement-side { padding-left: 34px; }
.statement-side p { margin: 0 0 32px; font-size: 17px; line-height: 1.7; }

.page-hero { background: var(--navy-deep); color: var(--white); padding: clamp(70px, 10vw, 145px) var(--gutter) clamp(65px, 8vw, 110px); }
.page-hero-inner { max-width: var(--max); margin: auto; display: grid; grid-template-columns: .32fr 1fr; gap: 40px; }
.page-hero h1 { margin: 0; max-width: 1050px; font-size: clamp(54px, 8vw, 126px); font-weight: 300; line-height: .94; letter-spacing: -.06em; }
body[data-lang="zh"] .page-hero h1 { line-height: 1.08; }
.page-hero h1 em { color: var(--acid); font-style: normal; }
.page-hero p { margin: 38px 0 0; max-width: 780px; color: rgba(255,255,255,.62); font-size: clamp(16px, 1.4vw, 21px); line-height: 1.7; }

.service-list { display: grid; gap: 14px; }
.service-group { display: grid; grid-template-columns: minmax(220px,.75fr) 1.25fr; gap: 35px; padding: 55px; background: var(--white); }
.service-group h2 { margin: 0; font-size: clamp(26px, 3vw, 44px); font-weight: 400; line-height: 1.2; }
.service-group ul { columns: 2; gap: 50px; margin: 0; padding: 0; list-style: none; }
.service-group li { break-inside: avoid; margin: 0 0 15px; padding-left: 17px; position: relative; color: #586261; font-size: 14px; line-height: 1.55; }
.service-group li::before { content: ''; position: absolute; left: 0; top: .72em; width: 6px; height: 6px; background: var(--acid); border-radius: 50%; }
.ai-strip { margin-top: 70px; padding: 32px; background: var(--navy); color: var(--white); display: grid; grid-template-columns: .7fr 1.3fr; gap: 40px; }
.ai-strip h3 { margin: 0; color: var(--acid); font-size: 20px; font-weight: 500; }
.ai-strip p { margin: 0; color: rgba(255,255,255,.7); font-size: 14px; line-height: 1.7; }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.principle { padding: 36px; background: rgba(255,255,255,.055); }
.principle + .principle { padding-left: 36px; }
.principle h3 { margin: 0 0 20px; font-size: 28px; font-weight: 400; }
.principle p { margin: 0; color: rgba(255,255,255,.6); font-size: 14px; line-height: 1.75; }

.story-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 9vw; }
.story-title { margin: 0; font-size: clamp(34px, 4.4vw, 64px); font-weight: 300; line-height: 1.14; letter-spacing: -.04em; }
.story-copy p { margin: 0 0 25px; color: #55605e; font-size: 16px; line-height: 1.86; }
.team-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: clamp(18px, 3vw, 42px); }
.team-card { padding: 0; background: transparent; }
.team-card + .team-card { padding-left: 0; }
.team-photo { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 0; filter: grayscale(1); margin: 0 0 32px; }
.team-card h3 { margin: 0 0 11px; font-size: clamp(24px, 2vw, 30px); font-weight: 400; }
.team-card p { margin: 0; color: var(--acid); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; }

.reel-section { padding-top: clamp(70px, 9vw, 120px); padding-bottom: clamp(70px, 9vw, 120px); }
.reel-head { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 28px; }
.reel-head h2 { margin: 0; color: var(--white); font-size: clamp(32px, 4vw, 58px); font-weight: 300; line-height: 1.1; letter-spacing: -.04em; }
.sizzle-video { display: block; width: 100%; aspect-ratio: 16 / 9; border: 0; background: #1D1F2A; object-fit: cover; }

.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 9vw; align-items: start; }
.contact-primary a { display: inline-block; color: var(--navy); text-decoration: none; font-size: clamp(26px, 3.5vw, 52px); font-weight: 300; letter-spacing: -.035em; }
.contact-primary p { max-width: 560px; color: #596361; font-size: 17px; line-height: 1.7; }
.contact-meta { margin-top: 70px; display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.contact-meta h3 { margin: 0 0 12px; color: #777f7d; font-size: 10px; letter-spacing: .16em; text-transform: uppercase; }
.contact-meta p { margin: 0; color: var(--ink); font-size: 13px; line-height: 1.8; }
.contact-form { padding: 40px; background: var(--white); box-shadow: 0 24px 70px rgba(30,44,58,.08); }
.field { margin-bottom: 28px; }
.field label { display: block; margin-bottom: 9px; color: #707977; font-size: 10px; font-weight: 600; letter-spacing: .13em; text-transform: uppercase; }
.field input, .field textarea { width: 100%; border: 0; background: var(--paper); color: var(--ink); padding: 13px 14px; border-radius: 0; outline: none; }
.field input:focus, .field textarea:focus { box-shadow: 0 0 0 2px var(--acid); }
.field textarea { min-height: 110px; resize: vertical; }
.submit { border: 0; background: var(--navy-deep); color: var(--white); cursor: pointer; padding: 16px 24px; font-size: 11px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; transition: background .2s, color .2s; }
.submit:hover { background: var(--acid); color: var(--navy-deep); }
.form-note { margin: 18px 0 0; color: #7e8582; font-size: 11px; line-height: 1.6; }

.site-footer { background: var(--navy-deep); color: var(--white); padding: 60px var(--gutter) 35px; }
.footer-inner { max-width: var(--max); margin: auto; }
.footer-cta { display: flex; justify-content: space-between; align-items: end; gap: 40px; padding-bottom: 70px; }
.footer-cta h2 { max-width: 900px; margin: 0; font-size: clamp(37px, 5.4vw, 78px); font-weight: 300; line-height: 1.06; letter-spacing: -.045em; }
.footer-cta a { flex: 0 0 auto; width: 76px; height: 76px; display: grid; place-items: center; border-radius: 50%; background: var(--acid); color: var(--navy-deep); text-decoration: none; transition: transform .3s var(--ease); }
.footer-cta a::after {
  content: ''; display: block; width: 24px; height: 24px;
  border-top: 2px solid currentColor; border-right: 2px solid currentColor;
  background: linear-gradient(to bottom right, transparent 47%, currentColor 48%, currentColor 52%, transparent 53%);
}
.footer-cta a:hover { transform: rotate(45deg); }
.footer-bottom { padding-top: 10px; display: flex; justify-content: space-between; gap: 30px; color: rgba(255,255,255,.46); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.footer-book { color: inherit; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; transition: color .2s; }
.footer-book:hover { color: var(--acid); }

/* Chinese typography needs more optical size at small scales. */
body[data-lang="zh"] .nav-links a { font-size: 14px; }
body[data-lang="zh"] .lang-toggle button { font-size: 13px; }
body[data-lang="zh"] .kicker { font-size: 15px; letter-spacing: .14em; }
body[data-lang="zh"] .label { font-size: 17px; letter-spacing: .1em; }
body[data-lang="zh"] .page-hero p,
body[data-lang="zh"] .lede { font-size: clamp(19px, 1.6vw, 24px); }
body[data-lang="zh"] .story-copy p,
body[data-lang="zh"] .statement-side p,
body[data-lang="zh"] .contact-primary p { font-size: 19px; }
body[data-lang="zh"] .service-card p,
body[data-lang="zh"] .service-group li,
body[data-lang="zh"] .principle p,
body[data-lang="zh"] .ai-strip p { font-size: 18px; }
body[data-lang="zh"] .text-link { font-size: 14px; }
body[data-lang="zh"] .contact-meta h3,
body[data-lang="zh"] .field label,
body[data-lang="zh"] .submit,
body[data-lang="zh"] .form-note { font-size: 13px; }
body[data-lang="zh"] .team-card p { font-size: clamp(19px, 1.5vw, 23px); letter-spacing: .05em; }
body[data-lang="zh"] .contact-meta p { font-size: 16px; }
body[data-lang="zh"] .footer-bottom { font-size: 12px; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .75s var(--ease), transform .75s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal { opacity: 1; transform: none; transition: none; } }

@media (max-width: 1050px) {
  .nav { grid-template-columns: 1fr auto; }
  .menu-button { display: block; grid-column: 2; grid-row: 1; }
  .lang-toggle { grid-column: 3; grid-row: 1; }
  .nav-links { display: none; grid-column: 1 / -1; padding: 0 0 25px; flex-direction: column; align-items: flex-start; }
  .site-header.menu-open .nav-links { display: flex; }
  .card-grid { grid-template-columns: repeat(2,1fr); }
  .service-group { grid-template-columns: .7fr 1.3fr; }
}

@media (max-width: 720px) {
  .nav { min-height: 76px; gap: 10px; }
  .brand-symbol { width: 40px; height: 40px; flex-basis: 40px; }
  .brand-name { font-size: 18px; }
  .hero-copy { min-height: calc(100svh - 76px); }
  .section-head, .page-hero-inner { grid-template-columns: 1fr; gap: 24px; }
  .section-head { margin-bottom: 55px; }
  .page-hero h1 { font-size: clamp(52px, 16vw, 86px); }
  .crossing-row { grid-template-columns: 1fr 24px 1fr; gap: 10px; }
  .card-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 210px; }
  .statement, .story-grid, .contact-layout { grid-template-columns: 1fr; gap: 60px; }
  .reel-head { align-items: flex-start; flex-direction: column; }
  .statement-side { padding: 10px 0 0; }
  .service-group { grid-template-columns: 1fr; gap: 20px; }
  .service-group { padding: 32px 24px; }
  .service-group ul { columns: 1; }
  .ai-strip { grid-template-columns: 1fr; }
  .principles, .team-grid { grid-template-columns: 1fr; }
  .principle, .principle + .principle { padding: 30px; }
  .contact-form { padding: 28px 22px; }
  .footer-cta { align-items: flex-start; flex-direction: column; }
  .footer-bottom { flex-direction: column; }
}