:root {
  --bg: #0e1116;
  --card: #171b22;
  --card-2: #1e232b;
  --line: #2a313b;
  --fg: #eef2f7;
  --muted: #9aa6b6;
  --accent: #4da3ff;
  --accent-2: #ffcf5c;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 20px 16px 72px; }
header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; gap: 14px; padding: 14px 16px; }
header.site .brand { font-weight: 700; letter-spacing: .2px; }
header.site nav { margin-left: auto; display: flex; gap: 14px; flex-wrap: wrap; font-size: 14px; }
header.site nav a { color: var(--muted); text-decoration: none; }
header.site nav a:hover { color: var(--fg); }
h1 { font-size: clamp(24px, 4.2vw, 38px); line-height: 1.2; margin: 28px 0 10px; }
h2 { font-size: clamp(19px, 2.6vw, 24px); margin: 36px 0 10px; }
h3 { font-size: 17px; margin: 22px 0 8px; }
p.lead { color: var(--muted); font-size: 17px; margin: 0 0 18px; }
.eyebrow { color: var(--accent-2); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; margin: 20px 0 0; }
.stage {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  margin: 18px 0;
}
.viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  border-radius: 10px;
  overflow: hidden;
}
.viewport canvas, .viewport video, .viewport img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block;
}
.overlay { position: absolute; inset: 0; pointer-events: none; }
.overlay.tint { mix-blend-mode: normal; }
.overlay.glare { opacity: 0; background: radial-gradient(circle at 68% 22%, rgba(255,255,240,.85), rgba(255,255,255,0) 62%); }
.overlay.peripheral { opacity: 0; background: radial-gradient(circle at 50% 50%, rgba(0,0,0,0) 16%, rgba(0,0,0,.98) 64%); }
.overlay.blur { backdrop-filter: none; }
.controls { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip {
  border: 1px solid var(--line); background: var(--card-2); color: var(--fg);
  padding: 8px 13px; border-radius: 999px; font-size: 14px; cursor: pointer;
}
.chip:hover { border-color: var(--accent); }
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #04121f; font-weight: 650; }
.rowctl { display: flex; align-items: center; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.rowctl label { font-size: 14px; color: var(--muted); min-width: 132px; }
input[type=range] { flex: 1 1 200px; accent-color: var(--accent); }
output { font-variant-numeric: tabular-nums; font-size: 14px; color: var(--accent-2); min-width: 62px; }
.btn {
  display: inline-block; background: var(--accent); color: #04121f; text-decoration: none;
  border: none; border-radius: 11px; padding: 12px 18px; font-size: 16px; font-weight: 650; cursor: pointer;
}
.btn.ghost { background: transparent; color: var(--fg); border: 1px solid var(--line); font-weight: 500; }
.btnrow { display: flex; gap: 10px; flex-wrap: wrap; margin: 16px 0 4px; }
.note { color: var(--muted); font-size: 14px; border-left: 3px solid var(--line); padding-left: 12px; margin: 14px 0; }
.cta {
  background: linear-gradient(180deg, #1b2431, #141a23);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; display: flex; gap: 18px; align-items: center; flex-wrap: wrap; margin: 26px 0;
}
.cta .qr { background: #fff; padding: 7px; border-radius: 10px; line-height: 0; }
.cta .qr img { width: 96px; height: 96px; display: block; }
.cta .txt { flex: 1 1 260px; }
.cta h3 { margin: 0 0 4px; }
.cta p { margin: 0; color: var(--muted); font-size: 14px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin: 18px 0; }
.grid a { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px; text-decoration: none; color: var(--fg); }
.grid a:hover { border-color: var(--accent); }
.grid strong { display: block; margin-bottom: 4px; }
.grid span { color: var(--muted); font-size: 14px; }
ul.faq { padding-left: 18px; }
ul.faq li { margin: 8px 0; color: var(--muted); }
ul.faq strong { color: var(--fg); }
footer.site { border-top: 1px solid var(--line); margin-top: 40px; }
footer.site .wrap { color: var(--muted); font-size: 13px; padding: 20px 16px; }
.hidden { display: none !important; }
@media (max-width: 560px) {
  .cta { padding: 14px; }
  .rowctl label { min-width: 100px; }
}

/* awareness-day strip — driven by EVENT in build_site.py; set it to None to retire */
.eventbar {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  background: linear-gradient(90deg, rgba(77,163,255,.16), rgba(255,207,92,.10));
  border: 1px solid var(--line); border-left: 3px solid var(--accent-2);
  border-radius: 12px; padding: 11px 14px; margin: 20px 0 0; font-size: 14px;
}
.eventbar strong { color: var(--accent-2); }
.eventbar a { margin-left: auto; white-space: nowrap; font-weight: 650; }
.panel h2:first-child { margin-top: 0; }
.kv { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin: 14px 0; }
.kv div { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px; font-size: 14px; color: var(--muted); }
.kv strong { color: var(--fg); display: block; margin-bottom: 4px; }