:root {
  --seo-bg: #07080b;
  --seo-surface: #111319;
  --seo-surface-2: #181b22;
  --seo-text: #f5f7fa;
  --seo-muted: #b7bec9;
  --seo-accent: #ff3b22;
  --seo-accent-soft: #ff8a78;
  --seo-line: rgba(255, 255, 255, 0.14);
  --seo-max: 1160px;
}

/* Keep the WebGL drawing buffer aligned with the visible sticky viewer. */
#three_dContentSection #dSection {
  height: 100svh;
  overflow: hidden;
}

#three_dContentSection #canvasWebgl {
  display: block;
  width: 100%;
  height: 100%;
}

.seo-v1-exhibitions,
.seo-site {
  color: var(--seo-text);
  background: var(--seo-bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

.seo-v1-exhibitions *,
.seo-site * { box-sizing: border-box; }

.seo-v1-wrap,
.seo-wrap { width: min(var(--seo-max), calc(100% - 40px)); margin-inline: auto; }

.seo-v1-exhibitions { padding: 88px 0 24px; border-top: 1px solid var(--seo-line); }
.seo-v1-section { padding: 70px 0; }
.seo-v1-kicker,
.seo-kicker { color: var(--seo-accent-soft); font-size: .78rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.seo-v1-title { max-width: 860px; margin: 12px 0 20px; font-size: clamp(2rem, 5vw, 4rem); line-height: 1.05; }
.seo-v1-lead { max-width: 780px; color: var(--seo-muted); font-size: clamp(1.05rem, 2vw, 1.25rem); }
.seo-v1-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 34px; }
.seo-v1-card { padding: 28px; border: 1px solid var(--seo-line); border-radius: 20px; background: linear-gradient(145deg, var(--seo-surface-2), var(--seo-surface)); }
.seo-v1-card h3 { margin: 0 0 12px; font-size: 1.35rem; }
.seo-v1-card p { color: var(--seo-muted); }
.seo-v1-link,
.seo-button { display: inline-flex; align-items: center; min-height: 46px; margin-top: 12px; padding: 11px 18px; border-radius: 999px; background: var(--seo-accent); color: #fff; font-weight: 800; text-decoration: none; }
.seo-v1-link:hover,
.seo-v1-link:focus-visible,
.seo-button:hover,
.seo-button:focus-visible { background: #ff5a43; color: #fff; outline: 3px solid rgba(255, 138, 120, .45); outline-offset: 3px; }
.seo-v1-process { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 28px; }
.seo-v1-process div { padding: 22px; border-top: 2px solid var(--seo-accent); background: var(--seo-surface); }
.seo-v1-process div::before { counter-increment: step; content: "0" counter(step); display: block; color: var(--seo-accent-soft); font-weight: 800; }
.seo-v1-callout { padding: 36px; border: 1px solid var(--seo-line); border-radius: 24px; background: radial-gradient(circle at top right, rgba(255,59,34,.22), transparent 44%), var(--seo-surface); }

.seo-site { min-height: 100vh; margin: 0; }
.seo-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--seo-line); background: rgba(7,8,11,.92); backdrop-filter: blur(14px); }
.seo-nav { display: flex; align-items: center; justify-content: space-between; min-height: 76px; gap: 22px; }
.seo-brand { display: inline-flex; align-items: center; gap: 12px; color: #fff; font-weight: 900; text-decoration: none; }
.seo-brand img { width: 122px; height: auto; }
.seo-nav-links { display: flex; align-items: center; gap: 20px; margin: 0; padding: 0; list-style: none; }
.seo-nav-links a { color: var(--seo-muted); font-weight: 700; text-decoration: none; }
.seo-nav-links a:hover,
.seo-nav-links a:focus-visible { color: #fff; outline: 2px solid var(--seo-accent-soft); outline-offset: 4px; }
.seo-nav-toggle { display: none; padding: 8px 12px; border: 1px solid var(--seo-line); border-radius: 8px; background: transparent; color: #fff; }
.seo-hero { padding: 96px 0 72px; background: radial-gradient(circle at 85% 20%, rgba(255,59,34,.24), transparent 35%); }
.seo-hero h1 { max-width: 900px; margin: 14px 0 22px; font-size: clamp(2.35rem, 6vw, 5.4rem); line-height: 1.02; letter-spacing: -.045em; }
.seo-lead { max-width: 790px; color: var(--seo-muted); font-size: 1.18rem; }
.seo-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.seo-button.secondary { border: 1px solid var(--seo-line); background: transparent; }
.seo-section { padding: 72px 0; border-top: 1px solid var(--seo-line); }
.seo-section h2 { max-width: 780px; margin: 0 0 18px; font-size: clamp(1.8rem, 4vw, 3rem); line-height: 1.12; }
.seo-section > .seo-wrap > p { max-width: 800px; color: var(--seo-muted); }
.seo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 28px; }
.seo-card { padding: 26px; border: 1px solid var(--seo-line); border-radius: 18px; background: var(--seo-surface); }
.seo-card h2,
.seo-card h3 { margin: 0 0 10px; font-size: 1.3rem; }
.seo-card p,
.seo-card li { color: var(--seo-muted); }
.seo-card a { color: var(--seo-accent-soft); font-weight: 800; }
.seo-two { display: grid; grid-template-columns: 1.25fr .75fr; gap: 28px; align-items: start; }
.seo-list { padding-left: 1.2rem; color: var(--seo-muted); }
.seo-list li + li { margin-top: 8px; }
.seo-faq details { border-top: 1px solid var(--seo-line); padding: 18px 0; }
.seo-faq summary { cursor: pointer; font-weight: 800; }
.seo-faq p { color: var(--seo-muted); }
.seo-form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 30px; }
.seo-field { display: flex; flex-direction: column; gap: 7px; }
.seo-field.full { grid-column: 1 / -1; }
.seo-field label { font-weight: 800; }
.seo-field input,
.seo-field select,
.seo-field textarea { width: 100%; padding: 13px 14px; border: 1px solid #424753; border-radius: 10px; background: #0d0f14; color: #fff; }
.seo-field input:focus,
.seo-field select:focus,
.seo-field textarea:focus { outline: 3px solid rgba(255,138,120,.35); border-color: var(--seo-accent-soft); }
.seo-help,
.seo-status { color: var(--seo-muted); font-size: .92rem; }
.seo-status[role="status"] { min-height: 1.5em; }
.seo-footer { padding: 48px 0; border-top: 1px solid var(--seo-line); background: #040507; }
.seo-footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
.seo-footer a { color: var(--seo-muted); }
.seo-breadcrumb { padding-top: 24px; color: var(--seo-muted); font-size: .9rem; }
.seo-breadcrumb a { color: var(--seo-muted); }
.seo-notice { padding: 16px 18px; border-left: 3px solid var(--seo-accent); background: var(--seo-surface); color: var(--seo-muted); }

@media (max-width: 850px) {
  .seo-v1-grid,
  .seo-grid,
  .seo-footer-grid { grid-template-columns: 1fr; }
  .seo-v1-process { grid-template-columns: 1fr 1fr; }
  .seo-two { grid-template-columns: 1fr; }
  .seo-nav-toggle { display: block; }
  .seo-nav-links { display: none; position: absolute; inset: 76px 0 auto; padding: 22px; background: #090b10; border-bottom: 1px solid var(--seo-line); flex-direction: column; align-items: flex-start; }
  .seo-nav-links.is-open { display: flex; }
}

@media (max-width: 767.98px) {
  #three_dContentSection #dSection {
    height: 48svh;
  }
}

@media (max-width: 540px) {
  .seo-v1-wrap,
  .seo-wrap { width: min(100% - 28px, var(--seo-max)); }
  .seo-v1-exhibitions,
  .seo-hero { padding-top: 64px; }
  .seo-v1-section,
  .seo-section { padding: 54px 0; }
  .seo-v1-process,
  .seo-form { grid-template-columns: 1fr; }
  .seo-field.full { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  .seo-v1-exhibitions *,
  .seo-site * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}