/* =====================================================================
   X-SPHERE / TAIDU  —  Design System
   Dark glass + brand gradient (violet→blue→cyan→magenta)
   Fonts: Space Grotesk (display) + Inter (body)
   ===================================================================== */

/* ---------- Tokens ---------- */
:root {
  /* base surfaces */
  --bg:            #06070d;
  --bg-2:          #0a0c14;
  --surface:       #0e1018;
  --surface-2:     #14161f;
  --surface-3:     #1b1e2a;
  --line:          rgba(255,255,255,.09);
  --line-2:        rgba(255,255,255,.16);

  /* text */
  --text:          #f4f6fb;
  --text-soft:     #c3c9d8;
  --muted:         #8b93a7;
  --faint:         #5b6276;

  /* brand gradient stops */
  --v:             #8b5cf6;  /* violet  */
  --b:             #3b82f6;  /* blue    */
  --c:             #22d3ee;  /* cyan    */
  --m:             #ec4899;  /* magenta */

  --grad:    linear-gradient(100deg, var(--v) 0%, var(--b) 34%, var(--c) 64%, var(--m) 100%);
  --grad-soft: linear-gradient(100deg, rgba(139,92,246,.18), rgba(59,130,246,.16) 40%, rgba(34,211,238,.16) 68%, rgba(236,72,153,.18));
  --grad-text: linear-gradient(92deg, #c4b5fd 0%, #93c5fd 30%, #67e8f9 60%, #f9a8d4 100%);

  /* effects */
  --radius:        20px;
  --radius-lg:     28px;
  --radius-sm:     12px;
  --shadow:        0 24px 60px -24px rgba(0,0,0,.7);
  --glow:          0 0 0 1px rgba(255,255,255,.06), 0 30px 80px -30px rgba(99,102,241,.45);
  --blur:          saturate(140%) blur(16px);

  --container:     1200px;
  --container-wide: 1360px;
  --ease:          cubic-bezier(.22,.61,.36,1);
  --nav-h:         72px;
}

/* ---------- Reset ---------- */
*,*::before,*::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
}
body {
  font-family: "Inter", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
:lang(zh), .cn { font-family: "Noto Sans SC", "Inter", sans-serif; }
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; padding: 0; }
:focus-visible { outline: 2px solid var(--c); outline-offset: 3px; border-radius: 6px; }
::selection { background: rgba(139,92,246,.4); color:#fff; }

/* ---------- Ambient background ---------- */
body::before {
  content:""; position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(60vw 60vw at 12% -8%, rgba(139,92,246,.16), transparent 60%),
    radial-gradient(55vw 55vw at 98% 4%, rgba(34,211,238,.12), transparent 58%),
    radial-gradient(60vw 60vw at 70% 108%, rgba(236,72,153,.12), transparent 60%);
}
body::after {
  content:""; position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.025'/%3E%3C/svg%3E");
}

/* ---------- Typography ---------- */
h1,h2,h3,h4 { font-family: "Space Grotesk","Noto Sans SC","Inter",sans-serif; font-weight: 700; line-height: 1.2; letter-spacing: -.01em; }
.display { font-size: clamp(2.5rem, 5.6vw, 5rem); font-weight: 700; letter-spacing: 0; line-height: 1.16; }
h2.section-title { font-size: clamp(1.9rem, 3.8vw, 3.1rem); letter-spacing: -.01em; line-height: 1.22; }
h3 { font-size: clamp(1.2rem,2vw,1.5rem); }
p { color: var(--text-soft); }
strong { color: var(--text); font-weight: 600; }
.lead { font-size: clamp(1.05rem,1.5vw,1.3rem); color: var(--text-soft); line-height: 1.6; }

.grad-text {
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: .6em;
  font-family: "Space Grotesk", sans-serif;
  font-size: .8rem; font-weight: 500; letter-spacing: .28em; text-transform: uppercase;
  color: var(--c);
}
.eyebrow::before { content:""; width: 26px; height: 1px; background: linear-gradient(90deg, transparent, var(--c)); }
.eyebrow.center::after { content:""; width: 26px; height: 1px; background: linear-gradient(90deg, var(--c), transparent); }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.container.wide { max-width: var(--container-wide); }
section { position: relative; }
.section { padding-block: clamp(72px, 11vw, 150px); }
.section-head { max-width: 760px; margin-bottom: clamp(40px,5vw,72px); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head p { margin-top: 18px; }
.divider-line { height: 1px; background: var(--line); border: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .55em;
  padding: 14px 26px; border-radius: 999px;
  font-weight: 600; font-size: .95rem; letter-spacing: -.01em;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, border-color .25s;
  will-change: transform;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { color:#0a0a12; background: var(--grad); box-shadow: 0 10px 30px -10px rgba(99,102,241,.6); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -12px rgba(99,102,241,.7); }
.btn-ghost { color: var(--text); border: 1px solid var(--line-2); background: rgba(255,255,255,.02); }
.btn-ghost:hover { transform: translateY(-2px); border-color: rgba(255,255,255,.34); background: rgba(255,255,255,.06); }
.btn-lg { padding: 17px 32px; font-size: 1rem; }

/* gradient hairline border helper */
.gborder { position: relative; }
.gborder::before {
  content:""; position:absolute; inset:0; border-radius: inherit; padding:1px;
  background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; opacity:.55; pointer-events:none;
}

/* ---------- Glass card ---------- */
.glass {
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.015));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
}

/* =====================================================================
   NAVBAR
   ===================================================================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: var(--nav-h);
  display: flex; align-items: center;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(8,9,15,.72); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--line);
}
.nav .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 11px; font-family:"Space Grotesk"; font-weight: 600; font-size: 1.15rem; letter-spacing: -.01em; }
.brand .logo-x { width: 30px; height: 30px; }
.brand small { display:block; font-family:"Inter"; font-weight:500; font-size:.58rem; letter-spacing:.34em; text-transform:uppercase; color: var(--muted); margin-top: 2px;}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  position: relative; padding: 9px 15px; border-radius: 999px; font-size: .92rem; font-weight: 500; color: var(--text-soft);
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,.05); }
.nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content:""; position:absolute; left:15px; right:15px; bottom:2px; height:2px; border-radius:2px; background: var(--grad);
}
.nav-cta { display:flex; align-items:center; gap: 14px; }
.nav-toggle { display:none; width:42px; height:42px; border-radius:10px; border:1px solid var(--line-2); align-items:center; justify-content:center; }
.nav-toggle svg { width: 22px; height: 22px; }

@media (max-width: 940px) {
  .nav-cta .btn { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: fixed; inset: var(--nav-h) 0 auto 0; flex-direction: column; align-items: stretch; gap: 4px;
    padding: 18px 24px 28px; background: rgba(8,9,15,.96); backdrop-filter: var(--blur);
    border-bottom: 1px solid var(--line); transform: translateY(-130%); transition: transform .4s var(--ease);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 14px 16px; font-size: 1.05rem; }
  .nav-links a.active::after { display:none; }
  .nav-links .btn { display:inline-flex; justify-content:center; margin-top: 8px; }
}

/* =====================================================================
   HERO (Home)
   ===================================================================== */
.hero { position: relative; min-height: 100vh; min-height: 100dvh; display: grid; align-items: center; padding-top: var(--nav-h); overflow: hidden; }
.hero-media { position: absolute; inset: 0; z-index: -1; }
.hero-media img, .hero-media video { width: 100%; height: 100%; object-fit: cover; }
.hero-media::after {
  content:""; position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(6,7,13,.55) 0%, rgba(6,7,13,.35) 36%, rgba(6,7,13,.86) 84%, var(--bg) 100%),
    linear-gradient(90deg, rgba(6,7,13,.7), transparent 60%);
}
.hero-inner { padding-block: clamp(40px, 8vh, 120px); max-width: 920px; }
.hero h1 { margin: 22px 0 0; }
.hero .lead { margin-top: 26px; max-width: 620px; }
.hero-actions { margin-top: 38px; display: flex; flex-wrap: wrap; gap: 14px; }
.hero-stats { margin-top: clamp(40px,6vh,64px); display: flex; flex-wrap: wrap; gap: clamp(26px,5vw,64px); }
.hero-stats .stat-n { font-family:"Space Grotesk"; font-size: clamp(1.8rem,3vw,2.6rem); font-weight:600; }
.hero-stats .stat-l { font-size: .82rem; color: var(--muted); letter-spacing:.02em; margin-top:2px; }
.scroll-cue { position:absolute; bottom: 26px; left: 50%; transform: translateX(-50%); color: var(--muted); font-size:.72rem; letter-spacing:.25em; text-transform:uppercase; display:flex; flex-direction:column; align-items:center; gap:10px;}
.scroll-cue .mouse { width:22px; height:36px; border:1.5px solid var(--line-2); border-radius:12px; position:relative; }
.scroll-cue .mouse::after { content:""; position:absolute; top:7px; left:50%; transform:translateX(-50%); width:3px; height:7px; border-radius:2px; background: var(--c); animation: scrolldot 1.6s var(--ease) infinite; }
@keyframes scrolldot { 0%{opacity:0; transform:translate(-50%,0)} 40%{opacity:1} 80%{opacity:0; transform:translate(-50%,10px)} }

/* =====================================================================
   PAGE HEADER (secondary "title pages")
   ===================================================================== */
.page-hero { position: relative; padding-top: calc(var(--nav-h) + clamp(80px,12vh,140px)); padding-bottom: clamp(56px,8vw,96px); overflow:hidden; }
.page-hero::before {
  content:""; position:absolute; inset:0; z-index:-1;
  background: radial-gradient(70% 120% at 50% -20%, rgba(139,92,246,.16), transparent 60%);
}
.page-hero .index { font-family:"Space Grotesk"; font-size:.85rem; letter-spacing:.3em; color: var(--faint); }
.page-hero h1 { font-size: clamp(2.6rem,6vw,5rem); margin:18px 0 0; }
.page-hero .lead { margin-top: 22px; max-width: 680px; }
.breadcrumb { font-size:.82rem; color: var(--muted); display:flex; gap:8px; align-items:center; }
.breadcrumb a:hover { color: var(--text); }

/* =====================================================================
   STAT GRID
   ===================================================================== */
.stat-grid { display:grid; grid-template-columns: repeat(auto-fit,minmax(200px,1fr)); gap: 18px; }
.stat-card { padding: 30px 26px; border-radius: var(--radius); }
.stat-card .n { font-family:"Space Grotesk"; font-size: clamp(2rem,3.4vw,2.9rem); font-weight:600; letter-spacing:-.02em; line-height:1; }
.stat-card .n .grad-text{ display:inline; }
.stat-card .l { margin-top: 12px; color: var(--muted); font-size:.92rem; }

/* =====================================================================
   FEATURE / CONTENT GRID
   ===================================================================== */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2,1fr); }
.grid-3 { grid-template-columns: repeat(3,1fr); }
.grid-4 { grid-template-columns: repeat(4,1fr); }
@media (max-width: 980px){ .grid-3,.grid-4 { grid-template-columns: repeat(2,1fr);} }
@media (max-width: 620px){ .grid-2,.grid-3,.grid-4 { grid-template-columns: 1fr;} }

.feature {
  padding: 32px; border-radius: var(--radius); height: 100%;
  transition: transform .35s var(--ease), border-color .35s, background .35s;
}
.feature:hover { transform: translateY(-5px); border-color: var(--line-2); }
.feature .ic { width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 22px; background: var(--grad-soft); border: 1px solid var(--line); }
.feature .ic svg { width: 24px; height: 24px; stroke: #fff; }
.feature h3 { margin-bottom: 10px; }
.feature p { font-size: .96rem; }

/* split section (text + media) */
.split { display:grid; grid-template-columns: 1fr 1fr; gap: clamp(32px,5vw,72px); align-items:center; }
.split.reverse .split-media { order: -1; }
@media (max-width: 900px){ .split { grid-template-columns: 1fr; } .split.reverse .split-media{ order:0; } }
.split-media { position: relative; border-radius: var(--radius-lg); overflow: hidden; }
.split-media img { width:100%; height:100%; object-fit: cover; aspect-ratio: 4/3; }
.split ul.checks { margin-top: 24px; display: grid; gap: 14px; }
.split ul.checks li { display:flex; gap: 13px; align-items:flex-start; color: var(--text-soft); }
.split ul.checks li svg { flex:none; width:22px; height:22px; margin-top:1px; }

/* =====================================================================
   VIDEO
   ===================================================================== */
.video-card { position: relative; border-radius: var(--radius-lg); overflow:hidden; cursor:pointer; }
.video-card img { width:100%; height:100%; object-fit: cover; transition: transform .6s var(--ease); }
.video-card:hover img { transform: scale(1.04); }
.video-card::after { content:""; position:absolute; inset:0; background: linear-gradient(180deg, transparent 40%, rgba(6,7,13,.85)); }
.video-card .play {
  position:absolute; top:50%; left:50%; transform: translate(-50%,-50%); z-index:2;
  width: 76px; height:76px; border-radius:50%; display:grid; place-items:center;
  background: rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.4); backdrop-filter: blur(8px);
  transition: transform .3s var(--ease), background .3s;
}
.video-card:hover .play { transform: translate(-50%,-50%) scale(1.08); background: var(--grad); border-color: transparent; }
.video-card .play svg { width: 28px; height:28px; fill:#fff; margin-left:3px; }
.video-card .vmeta { position:absolute; left:24px; right:24px; bottom: 22px; z-index:2; }
.video-card .vmeta h3 { margin-bottom: 4px; }
.video-card .vmeta span { font-size:.82rem; color: var(--muted); }
.video-card .badge { position:absolute; top:18px; left:18px; z-index:2; font-size:.72rem; letter-spacing:.2em; text-transform:uppercase; padding:6px 12px; border-radius:999px; background: rgba(6,7,13,.6); border:1px solid var(--line-2); color: var(--text-soft); }
.video-card.tall img { aspect-ratio: 9/16; }
.video-card.wide img { aspect-ratio: 16/9; }

/* modal */
.modal { position: fixed; inset: 0; z-index: 200; display: none; align-items: center; justify-content: center; padding: 24px; background: rgba(3,4,9,.85); backdrop-filter: blur(10px); }
.modal.open { display: flex; }
.modal-inner { width: min(1100px, 96vw); position: relative; }
.modal-inner.portrait { width: min(440px, 94vw); }
.modal video { width: 100%; border-radius: 16px; box-shadow: var(--shadow); background:#000; }
.modal-close { position: absolute; top: -52px; right: 0; width: 42px; height:42px; border-radius:50%; border:1px solid var(--line-2); display:grid; place-items:center; background: rgba(255,255,255,.06); }
.modal-close svg { width:20px;height:20px; stroke:#fff; }

/* =====================================================================
   GALLERY (cases / products)
   ===================================================================== */
.gallery { columns: 3; column-gap: 20px; }
@media (max-width: 900px){ .gallery { columns: 2; } }
@media (max-width: 560px){ .gallery { columns: 1; } }
.gallery .tile { break-inside: avoid; margin-bottom: 20px; border-radius: var(--radius); overflow: hidden; position: relative; border:1px solid var(--line); }
.gallery .tile img { width:100%; transition: transform .6s var(--ease); background: var(--surface-2); }
.gallery .tile:hover img { transform: scale(1.05); }
.gallery .tile .cap { position:absolute; inset:auto 0 0 0; padding: 40px 18px 16px; background: linear-gradient(transparent, rgba(6,7,13,.9)); transform: translateY(8px); opacity:0; transition: .35s var(--ease); }
.gallery .tile:hover .cap { transform: translateY(0); opacity:1; }
.gallery .tile .cap h4 { font-size: 1rem; }
.gallery .tile .cap span { font-size:.78rem; color: var(--c); letter-spacing:.04em; }

/* case card (uniform grid) */
.case-card { border-radius: var(--radius); overflow:hidden; border:1px solid var(--line); background: var(--surface); transition: transform .35s var(--ease), border-color .35s; height:100%; display:flex; flex-direction:column; }
.case-card:hover { transform: translateY(-5px); border-color: var(--line-2); }
.case-card .ph { aspect-ratio: 4/3; overflow:hidden; background: var(--surface-2); }
.case-card .ph img { width:100%; height:100%; object-fit: cover; transition: transform .6s var(--ease); }
.case-card:hover .ph img { transform: scale(1.05); }
.case-card .body { padding: 22px 22px 26px; flex:1; display:flex; flex-direction:column; }
.case-card .tag { font-size:.72rem; letter-spacing:.16em; text-transform:uppercase; color: var(--c); }
.case-card h3 { font-size: 1.18rem; margin: 9px 0 8px; }
.case-card p { font-size: .92rem; }
.case-card .row { margin-top:auto; padding-top:16px; display:flex; gap:8px; flex-wrap:wrap; }
.chip { font-size:.74rem; padding: 5px 11px; border-radius:999px; border:1px solid var(--line); color: var(--muted); }

/* logo / partner marquee */
.marquee { overflow: hidden; -webkit-mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee-track { display: flex; gap: 56px; width: max-content; animation: marquee 38s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span { font-family:"Space Grotesk"; font-weight:600; font-size: clamp(1.1rem,1.8vw,1.5rem); color: var(--faint); white-space: nowrap; transition: color .3s; }
.marquee-track span:hover { color: var(--text); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* =====================================================================
   TIMELINE
   ===================================================================== */
.timeline { display:grid; gap: 0; }
.tl-item { display:grid; grid-template-columns: 120px 1fr; gap: 28px; padding: 26px 0; border-top:1px solid var(--line); }
.tl-item:last-child { border-bottom:1px solid var(--line); }
.tl-item .ph { font-family:"Space Grotesk"; font-weight:600; color: var(--c); font-size:.92rem; letter-spacing:.04em; padding-top:3px;}
.tl-item h3 { font-size:1.15rem; margin-bottom:7px; }
@media (max-width:620px){ .tl-item{ grid-template-columns: 84px 1fr; gap:18px; } }

/* =====================================================================
   CONTACT
   ===================================================================== */
.contact-grid { display:grid; grid-template-columns: repeat(auto-fill, minmax(290px,1fr)); gap: 18px; }
.contact-card { padding: 26px; border-radius: var(--radius); transition: transform .3s var(--ease), border-color .3s; }
.contact-card:hover { transform: translateY(-4px); border-color: var(--line-2); }
.contact-card .flag { font-size: 1.7rem; line-height:1; }
.contact-card .country { font-family:"Space Grotesk"; font-weight:600; font-size:1.15rem; margin: 12px 0 3px; }
.contact-card .person { color: var(--c); font-size:.88rem; margin-bottom:14px; }
.contact-card .line, .contact-card.line { display:flex; gap:11px; align-items:flex-start; color: var(--text-soft); font-size:.9rem; margin-top: 9px; }
.contact-card .line svg, .contact-card.line > svg { flex:none; width:18px; height:18px; margin-top:3px; stroke: var(--muted); }
.contact-card a.line:hover, a.contact-card.line:hover { color:#fff; }

.form-field { margin-bottom: 18px; }
.form-field label { display:block; font-size:.85rem; color: var(--text-soft); margin-bottom: 8px; font-weight:500; }
.form-field input, .form-field textarea, .form-field select {
  width:100%; padding: 14px 16px; border-radius: 12px; background: var(--surface-2);
  border:1px solid var(--line); color: var(--text); font: inherit; transition: border-color .2s, background .2s;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { outline:none; border-color: rgba(34,211,238,.6); background: var(--surface-3); }
.form-field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size:.85rem; color: var(--muted); margin-top: 14px; }
.form-success { display:none; padding: 16px 18px; border-radius: 12px; background: rgba(34,211,238,.08); border:1px solid rgba(34,211,238,.3); color: var(--text); margin-top: 16px; }
.form-success.show { display:block; }

/* =====================================================================
   CTA band
   ===================================================================== */
.cta {
  position: relative; border-radius: var(--radius-lg); overflow:hidden; padding: clamp(48px,7vw,88px);
  text-align:center; background: var(--surface); border:1px solid var(--line);
}
.cta::before { content:""; position:absolute; inset:0; background: var(--grad-soft); opacity:.6; }
.cta::after { content:""; position:absolute; inset:0; background: radial-gradient(60% 120% at 50% 0%, rgba(34,211,238,.18), transparent 60%); }
.cta > * { position: relative; }
.cta h2 { font-size: clamp(2rem,4vw,3.2rem); }
.cta p { max-width: 560px; margin: 20px auto 0; }
.cta .hero-actions { justify-content:center; }

/* =====================================================================
   FOOTER
   ===================================================================== */
.footer { border-top:1px solid var(--line); padding-block: 64px 36px; margin-top: 40px; background: var(--bg-2); }
.footer-top { display:grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
@media (max-width: 820px){ .footer-top { grid-template-columns: 1fr 1fr; gap:32px; } }
@media (max-width: 480px){ .footer-top { grid-template-columns: 1fr; } }
.footer h5 { font-family:"Space Grotesk"; font-size:.8rem; letter-spacing:.16em; text-transform:uppercase; color: var(--muted); margin-bottom: 18px; }
.footer .col a { display:block; color: var(--text-soft); font-size:.92rem; padding: 6px 0; transition: color .2s; }
.footer .col a:hover { color:#fff; }
.footer .about p { font-size:.92rem; max-width: 320px; margin-top:16px; }
.footer-bottom { margin-top: 48px; padding-top: 26px; border-top:1px solid var(--line); display:flex; flex-wrap:wrap; gap:14px; justify-content:space-between; align-items:center; color: var(--muted); font-size:.85rem; }

/* =====================================================================
   Scroll reveal
   ===================================================================== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1{ transition-delay:.08s } .reveal.d2{ transition-delay:.16s } .reveal.d3{ transition-delay:.24s } .reveal.d4{ transition-delay:.32s }
@media (prefers-reduced-motion: reduce){ .reveal{ opacity:1; transform:none; } }

/* =====================================================================
   BIG VIDEO  (videos as large as possible)
   ===================================================================== */
.video-stage { position: relative; border-radius: var(--radius-lg); overflow: hidden; border:1px solid var(--line); background:#000; box-shadow: var(--shadow); }
.video-stage video { width: 100%; height: 100%; display: block; aspect-ratio: 16/9; object-fit: cover; background:#000; }
.video-stage.portrait { max-width: 460px; margin-inline: auto; }
.video-stage.portrait video { aspect-ratio: 9/16; }
.video-stage .stage-label { position:absolute; top:18px; left:18px; z-index:3; pointer-events:none; display:flex; gap:10px; align-items:center; }
.video-stage .stage-label .badge { font-size:.72rem; letter-spacing:.2em; text-transform:uppercase; padding:7px 13px; border-radius:999px; background:rgba(6,7,13,.62); border:1px solid var(--line-2); color:var(--text-soft); backdrop-filter:blur(6px); }
/* poster overlay + play for click-to-play big stage */
.video-stage .poster { position:absolute; inset:0; z-index:2; cursor:pointer; }
.video-stage .poster img { width:100%; height:100%; object-fit:cover; }
.video-stage .poster::after { content:""; position:absolute; inset:0; background:linear-gradient(180deg,rgba(6,7,13,.25),rgba(6,7,13,.55)); }
.video-stage .poster .play { position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); width:92px; height:92px; border-radius:50%; display:grid; place-items:center; background:rgba(255,255,255,.14); border:1px solid rgba(255,255,255,.45); backdrop-filter:blur(8px); transition:transform .3s var(--ease),background .3s; z-index:1; }
.video-stage .poster:hover .play { transform:translate(-50%,-50%) scale(1.08); background:var(--grad); border-color:transparent; }
.video-stage .poster .play svg { width:34px; height:34px; fill:#fff; margin-left:4px; }
.video-stage .poster .vmeta { position:absolute; left:26px; right:26px; bottom:24px; z-index:1; }
.video-stage .poster .vmeta h3 { font-size:clamp(1.2rem,2.2vw,1.7rem); margin-bottom:4px; }
.video-stage .poster .vmeta span { color:var(--text-soft); font-size:.9rem; }
.video-stage .poster.hide { display:none; }

.reel-stack { display:grid; gap:26px; }

/* hero video */
.hero-media video { width:100%; height:100%; object-fit:cover; }
.hero .sound-toggle { position:absolute; right:24px; bottom:26px; z-index:5; display:inline-flex; align-items:center; gap:8px; padding:9px 15px; border-radius:999px; border:1px solid var(--line-2); background:rgba(6,7,13,.5); backdrop-filter:blur(8px); font-size:.8rem; color:var(--text-soft); }
.hero .sound-toggle svg{ width:16px;height:16px; stroke:currentColor; fill:none }
.hero .sound-toggle:hover{ color:#fff; border-color:rgba(255,255,255,.4) }

/* bilingual heading helper */
.en-deco { display:block; font-family:"Space Grotesk",sans-serif; font-weight:500; letter-spacing:.04em; color:var(--muted); font-size:.5em; margin-top:.5em; text-transform:none; }
h1 .en-deco, .display .en-deco { font-size:.32em; letter-spacing:.16em; text-transform:uppercase; color:var(--c); margin-top:.7em; }

/* =====================================================================
   EXHIBIT  (framed authentic slide images — image-forward, minimal text)
   ===================================================================== */
.exhibit { position:relative; border-radius: var(--radius-lg); overflow:hidden; border:1px solid var(--line); box-shadow: var(--shadow); background:#0b0c14; }
.exhibit img { width:100%; height:auto; display:block; }
.exhibit-grid { display:grid; gap:22px; }
.exhibit-grid.two { grid-template-columns: repeat(2,1fr); }
.exhibit-grid.three { grid-template-columns: repeat(3,1fr); }
@media (max-width: 900px){ .exhibit-grid.two, .exhibit-grid.three { grid-template-columns: 1fr; } }
.exhibit-cap { margin-top:14px; color: var(--muted); font-size:.86rem; text-align:center; }

/* full-bleed image band */
.band { position:relative; min-height: clamp(360px, 56vw, 660px); display:grid; align-items:end; overflow:hidden; }
.band > img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:-1; }
.band::after { content:""; position:absolute; inset:0; z-index:-1; background: linear-gradient(180deg, rgba(6,7,13,.2) 0%, rgba(6,7,13,.1) 40%, rgba(6,7,13,.92) 100%); }
.band .band-cap { padding: clamp(28px,5vw,60px); }

/* =====================================================================
   LIGHT SLIDE SECTION  (one PPT slide per row, fits the viewport)
   alternates with dark sections as the user scrolls
   ===================================================================== */
.slide-light {
  width: 100%;
  background: linear-gradient(180deg, #eef0f8 0%, #e2e5f1 100%);
  padding: clamp(20px, 3vw, 46px) clamp(14px, 3vw, 40px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.slide-light .eyebrow { color: #6d3bd1; margin-bottom: 16px; }
.slide-light .eyebrow::before, .slide-light .eyebrow.center::after { background: linear-gradient(90deg, transparent, #6d3bd1); }
.slide-light img {
  display: block; width: 100%; max-width: 1700px; max-height: 84vh;
  object-fit: contain; border-radius: 10px;
  box-shadow: 0 24px 60px -28px rgba(40,30,90,.45);
  cursor: zoom-in;
}
.slide-light.tight img { max-height: 90vh; }
.slide-light.has-video { position: relative; cursor: pointer; }
.slide-light.has-video img { cursor: pointer; }
.slide-light.has-video .play-over { position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); width:88px; height:88px; border-radius:50%; background:rgba(6,7,13,.5); border:1px solid rgba(255,255,255,.6); display:grid; place-items:center; backdrop-filter:blur(6px); transition:transform .3s var(--ease), background .3s; pointer-events:none; }
.slide-light.has-video:hover .play-over { transform:translate(-50%,-50%) scale(1.08); background:var(--grad); border-color:transparent; }
.slide-light.has-video .play-over svg { width:32px; height:32px; fill:#fff; margin-left:3px; }
.slide-feature { background: linear-gradient(180deg,#11131c,#0a0c14); }
.slide-feature .eyebrow { color: var(--c); }

/* dark statement strip between light slides */
.dark-strip { text-align:center; padding: clamp(48px,8vw,96px) 0; }
.dark-strip h2 { font-size: clamp(1.8rem,3.6vw,2.8rem); }
.dark-strip p { max-width: 680px; margin: 18px auto 0; }

/* image lightbox (tap any slide to read it full-screen / pinch-zoom) */
.img-modal { position: fixed; inset: 0; z-index: 220; display:none; align-items:center; justify-content:center; padding: 16px; background: rgba(3,4,9,.92); backdrop-filter: blur(8px); overflow:auto; }
.img-modal.open { display:flex; }
.img-modal img { max-width: 100%; max-height: 94vh; width:auto; height:auto; border-radius: 8px; box-shadow: var(--shadow); }
.img-modal .modal-close { position: fixed; top: 18px; right: 18px; width:44px; height:44px; border-radius:50%; border:1px solid var(--line-2); display:grid; place-items:center; background: rgba(255,255,255,.08); }
.img-modal .modal-close svg { width:22px; height:22px; stroke:#fff; }
.img-hint { position: fixed; bottom: 16px; left:50%; transform:translateX(-50%); font-size:.78rem; color: var(--muted); letter-spacing:.06em; }

/* no-wrap section title helper */
.nowrap-title { white-space: nowrap; }
@media (max-width: 760px){ .nowrap-title { white-space: normal; } }

/* country flag on contact cards */
.flag-badge { width: 46px; height: 31px; border-radius: 6px; overflow: hidden; border:1px solid var(--line-2); flex:none; box-shadow: 0 2px 8px rgba(0,0,0,.4); }
.flag-badge img { width:100%; height:100%; object-fit: cover; display:block; }

/* utilities */
.center { text-align:center; }
.mt-s{margin-top:14px}.mt-m{margin-top:26px}.mt-l{margin-top:44px}
.maxw-720{max-width:720px}.mx-auto{margin-inline:auto}
.tag-row{ display:flex; flex-wrap:wrap; gap:10px; }
.pill { display:inline-flex; align-items:center; gap:8px; padding:8px 15px; border-radius:999px; border:1px solid var(--line); background: rgba(255,255,255,.02); font-size:.85rem; color: var(--text-soft); }
.pill svg{ width:15px;height:15px; }