:root {
  --bg: #12100e;
  --bg-raised: #1c1916;
  --line: #2e2924;
  --text: #f1e9dd;
  --muted: #a99c8a;
  --amber: #e8a33d;
  --amber-soft: rgba(232, 163, 61, 0.14);
  --radius: 14px;
  --max: 1120px;
  /* English in Arial (Arimo is its metric-compatible free twin, served by Google Fonts); Chinese in 黑体 (Noto Sans). */
  --font: "Arial", "Arimo", "Noto Sans TC", system-ui, sans-serif;
}
html[lang="zh-Hant"] { --font: "Arial", "Arimo", "Noto Sans TC", system-ui, sans-serif; }
html[lang="zh-Hans"] { --font: "Arial", "Arimo", "Noto Sans SC", system-ui, sans-serif; }

/* Show only the text that matches the current language (see assets/lang.js). */
html[lang="en"] [data-l]:not([data-l="en"]),
html[lang="zh-Hans"] [data-l]:not([data-l="zh-Hans"]),
html[lang="zh-Hant"] [data-l]:not([data-l="zh-Hant"]) { display: none !important; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 61px; /* height of the sticky nav */ }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--amber); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
[hidden] { display: none !important; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 61px;
  padding: 12px max(16px, calc((100vw - var(--max)) / 2));
  background: rgba(18, 16, 14, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font: 700 1.15rem var(--font); }
.brand:hover { text-decoration: none; }
.brand img { border-radius: 50%; }
.brand small, .footer-brand small { color: var(--muted); font: 500 0.85rem var(--font); margin-left: 4px; }
.menu { display: flex; align-items: center; gap: 24px; }
.menu nav { display: flex; align-items: center; gap: 20px; font-size: 0.95rem; }
.menu nav a { color: var(--muted); }
.menu nav a:hover, .menu nav a[aria-current="page"] { color: var(--text); text-decoration: none; }
.menu nav a[aria-current="page"] { box-shadow: 0 2px 0 var(--amber); }
.menu-toggle { display: none; }
.lang-switch { display: flex; border: 1px solid var(--line); border-radius: 999px; padding: 2px; }
.lang-switch button {
  font: 500 0.85rem var(--font); color: var(--muted);
  background: none; border: 0; border-radius: 999px;
  padding: 3px 10px; cursor: pointer;
}
.lang-switch button:hover { color: var(--text); }
.lang-switch button[aria-pressed="true"] { color: #1a1208; background: var(--amber); }

/* Hero */
.hero {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr); align-items: center; gap: 48px;
  max-width: var(--max); margin: 0 auto;
  padding: 88px 16px 72px;
}
.eyebrow { color: var(--amber); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.85rem; margin: 0 0 16px; }
html[lang^="zh"] .eyebrow { text-transform: none; letter-spacing: 0.04em; }
.hero h1, .page-hero h1 {
  font: 700 clamp(2.4rem, 6vw, 4rem)/1.08 var(--font);
  margin: 0 0 24px; letter-spacing: -0.02em; max-width: 22ch; text-wrap: balance;
}
.lede { color: var(--muted); font-size: 1.2rem; max-width: 44ch; margin: 0 0 36px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-mascot { width: 100%; max-width: 440px; height: auto; justify-self: end; }

/* Sub-page header */
.page-hero { max-width: var(--max); margin: 0 auto; padding: 64px 16px 28px; }
.page-hero h1 { font-size: clamp(2.3rem, 6vw, 3.8rem); max-width: 22ch; }
.page-hero .lede { margin-bottom: 0; max-width: none; }

.btn {
  display: inline-block; cursor: pointer;
  font: 600 0.98rem var(--font); color: var(--text);
  padding: 12px 22px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--bg-raised);
  transition: border-color .15s, transform .15s;
}
.btn:hover { text-decoration: none; border-color: var(--amber); transform: translateY(-1px); }
.btn.primary { background: var(--amber); color: #1a1208; border-color: var(--amber); }
.link-arrow { font-weight: 600; }

/* Sections */
.section { max-width: var(--max); margin: 0 auto; padding: 52px 16px; border-top: 1px solid var(--line); }
.section h2 { font: 700 clamp(1.8rem, 4vw, 2.6rem)/1.15 var(--font); margin: 0 0 24px; }
.section-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 16px; margin-bottom: 24px; }
.section-head h2 { margin: 0; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font: 500 0.9rem var(--font); color: var(--muted);
  background: none; border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 14px; cursor: pointer;
}
.chip.active { color: var(--text); background: var(--amber-soft); border-color: var(--amber); }
.prose { color: var(--muted); font-size: 1.08rem; }
.prose p { margin: 0 0 1em; }
.prose strong { color: var(--text); font-weight: 600; }

/* Vision banner: a sand-coloured panel, as wide as the page content */
.banner { max-width: var(--max); margin: 0 auto; padding: 24px 16px 8px; }
.banner-inner {
  padding: 44px 56px; text-align: center;
  background: #dccaa8; color: #1d1712; border-radius: 8px;
}
.banner blockquote {
  margin: 0 0 20px;
  font: 700 clamp(1.8rem, 4.4vw, 3rem)/1.2 var(--font);
  letter-spacing: -0.01em; text-wrap: balance;
}
.banner .accent { color: #7a3f00; }
.banner + .section { border-top: 0; }
.banner a { color: #1d1712; font-weight: 600; text-decoration: underline; text-underline-offset: 4px; text-decoration-color: #7a3f00; }

/* Video grid */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 28px; }
.card { background: none; border: 0; padding: 0; text-align: left; color: inherit; font: inherit; cursor: pointer; }
.thumb { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden; background: var(--bg-raised); }
.thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.card:hover .thumb img { transform: scale(1.04); }
.thumb::after {
  content: "▶"; position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 2rem; color: #fff; background: rgba(0,0,0,.35); opacity: 0; transition: opacity .2s;
}
.card:hover .thumb::after, .card:focus-visible .thumb::after { opacity: 1; }
.card h3 { font: 600 1.02rem/1.4 var(--font); margin: 14px 0 6px; }
.meta { display: flex; gap: 10px; align-items: center; color: var(--muted); font-size: 0.85rem; }
.tag { border: 1px solid var(--line); border-radius: 6px; padding: 0 6px; font-size: 0.75rem; }
.more-wrap { text-align: center; margin-top: 40px; }
.empty { color: var(--muted); }

/* Two-column text */
.columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 32px; margin-bottom: 24px; }
.columns p { margin: 0; }
.columns:last-child { margin-bottom: 0; }

/* Card (contact form) */
.tile {
  background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px;
}
.tile p { color: var(--muted); margin: 0; }

/* Figure above the vision pillars */
.diagram { margin: 0 0 28px; }
.diagram img { width: 100%; height: auto; border-radius: 8px; }
.diagram figcaption { color: var(--muted); font-size: 0.92rem; margin-top: 10px; text-align: center; }

/* Vision pillars: one block, items separated by dividers */
.pillars { background: var(--bg-raised); border: 1px solid var(--line); border-radius: 8px; }
.pillar { padding: 26px 32px; }
.pillar + .pillar { border-top: 1px solid var(--line); }
.pillar h3 { font: 800 clamp(1.4rem, 3vw, 1.7rem)/1.25 var(--font); margin: 0 0 8px; color: var(--text); }
html[lang^="zh"] .pillar h3 { font-weight: 900; }
.pillar p { color: var(--muted); margin: 0; }
.pillar strong { color: var(--text); font-weight: 600; }

/* People */
/* Two profiles side by side; subgrid keeps photo, intro and CV rows aligned across both. */
.profiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 40px; row-gap: 0; }
.profile { display: grid; grid-template-rows: subgrid; grid-row: span 3; row-gap: 24px; align-content: start; }
.profile .portrait { width: 180px; }
.portrait { width: 180px; }
.portrait {
  aspect-ratio: 1; border-radius: var(--radius); overflow: hidden;
  display: grid; place-items: center;
  background: var(--amber-soft); color: var(--amber); font: 700 3rem var(--font);
}
.portrait img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }
.profile h3 { font: 700 1.9rem/1.2 var(--font); margin: 0 0 4px; }
.profile h3 .cn { color: var(--muted); font: 400 1.1rem var(--font); margin-left: 8px; }
.role { color: var(--amber); font-weight: 600; margin: 0 0 20px; }
.motto {
  margin: 0 0 24px; padding-left: 16px; border-left: 3px solid var(--amber);
  font: 500 1.2rem/1.5 var(--font); font-style: italic;
}
html[lang^="zh"] .motto { font-style: normal; }
.cv { list-style: none; margin: 8px 0 0; padding: 0; }
.cv li { padding: 14px 0; border-top: 1px solid var(--line); }
.cv li:last-child { border-bottom: 1px solid var(--line); }
.cv strong { display: block; color: var(--text); font-weight: 600; }
.cv span { color: var(--muted); font-size: 0.95rem; }
.cv em { display: block; color: var(--muted); font-size: 0.92rem; }
.cv-title { font: 600 0.85rem var(--font); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin: 0; }
html[lang^="zh"] .cv-title { text-transform: none; letter-spacing: 0.04em; }

/* Contact */
.contact { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 40px; align-items: start; }
.contact-form { display: grid; gap: 18px; }
.contact-form label { display: block; font-size: 0.92rem; font-weight: 600; margin-bottom: 6px; }
.contact-form .optional { color: var(--muted); font-weight: 400; }
.contact-form input, .contact-form textarea {
  width: 100%; padding: 11px 14px;
  font: 1rem var(--font); color: var(--text);
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
  transition: border-color .15s;
}
.contact-form input::placeholder, .contact-form textarea::placeholder { color: #6f6557; }
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--amber); }
.contact-form textarea { min-height: 160px; resize: vertical; }
.contact-form button { justify-self: start; }
.contact-form .honey { display: none; }
.tile .form-sent {
  margin: 0 0 20px; padding: 12px 16px; border-radius: 10px;
  background: var(--amber-soft); color: var(--text) !important; font-weight: 600;
}
.contact-aside h2 { font: 700 1.5rem/1.3 var(--font); margin: 4px 0 12px; }
.contact-aside p { color: var(--muted); margin: 0 0 12px; }
.contact-email { font-size: 1.15rem; font-weight: 600; word-break: break-all; }

/* Call to action band */
.cta-band {
  max-width: calc(var(--max) - 32px); margin: 0 auto 56px; padding: 44px 40px;
  border-radius: calc(var(--radius) * 1.5);
  background: radial-gradient(120% 140% at 100% 0%, rgba(232,163,61,.22), transparent 55%), var(--bg-raised);
  border: 1px solid var(--line);
}
.cta-band h2 { font: 700 clamp(1.7rem, 4vw, 2.4rem)/1.2 var(--font); margin: 0 0 12px; }
.cta-band p { color: var(--muted); margin: 0 0 28px; max-width: 52ch; }

/* Footer */
.footer {
  max-width: var(--max); margin: 0 auto; padding: 40px 16px 48px;
  border-top: 1px solid var(--line);
  display: grid; grid-template-columns: 1fr auto; gap: 16px 32px;
  color: var(--muted); font-size: 0.9rem;
}
.footer p { margin: 0; }
.footer-brand { color: var(--text); font: 700 1.1rem var(--font); margin-bottom: 4px !important; }
.footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; align-content: start; }
.footer nav a { color: var(--muted); }
.footer nav a:hover { color: var(--text); }
.footer .copy { grid-column: 1 / -1; }

/* Player */
dialog#player {
  width: min(960px, 92vw); padding: 0; border: 0; border-radius: var(--radius);
  background: #000; overflow: visible;
}
dialog#player::backdrop { background: rgba(0,0,0,.8); }
#player .frame { aspect-ratio: 16 / 9; }
#player iframe { width: 100%; height: 100%; border: 0; border-radius: var(--radius); }
#player .close {
  position: absolute; top: -44px; right: 0;
  background: none; border: 0; color: #fff; font-size: 2rem; cursor: pointer;
}

@media (max-width: 900px) {
  .menu-toggle {
    display: grid; gap: 5px; padding: 10px; margin-right: -10px;
    background: none; border: 0; cursor: pointer;
  }
  .menu-toggle span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .2s, opacity .2s; }
  .nav.open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav.open .menu-toggle span:nth-child(2) { opacity: 0; }
  .nav.open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .menu {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 16px;
    padding: 8px 16px 20px;
    background: var(--bg); border-bottom: 1px solid var(--line);
  }
  .nav.open .menu { display: flex; }
  .menu nav { flex-direction: column; align-items: stretch; gap: 0; font-size: 1.05rem; }
  .menu nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .menu nav a[aria-current="page"] { box-shadow: none; color: var(--amber); }
  .lang-switch { align-self: flex-start; }
  .profiles { grid-template-columns: 1fr; row-gap: 48px; }
  .profile .portrait { width: 160px; }
  .hero { grid-template-columns: 1fr; gap: 28px; }
  .hero-mascot { order: -1; justify-self: start; max-width: 150px; }
  .contact { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .hero { padding: 56px 16px 56px; }
  .page-hero { padding: 44px 16px 20px; }
  .section { padding: 40px 16px; }
  .banner-inner { padding: 32px 20px; }
  .grid { grid-template-columns: 1fr; }
  .cta-band { margin: 0 16px 56px; padding: 40px 24px; }
  .footer { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}