:root {
  --paper: #fff9ec;
  --ink: #17130f;
  --muted: #8a7f70;
  --sun: #ffd23f;
  --red: #e8402a;
  --white: #ffffff;
  --ui: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html,
body { height: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--ui);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: -10% -10% auto -10%;
  height: 70vh;
  background: radial-gradient(60% 70% at 50% 0%, rgba(255, 210, 63, 0.42) 0%, rgba(255, 210, 63, 0) 68%);
  pointer-events: none;
  z-index: 0;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 9;
  pointer-events: none;
  opacity: 0.15;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

.stage {
  position: relative;
  z-index: 1;
  min-height: 100%;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 28px 28px 34px;
}

.tv {
  position: relative;
  width: min(1180px, 100%, calc((100dvh - 190px) * 16 / 9));
}

.tv-offset {
  position: absolute;
  inset: 0;
  border-radius: 26px 20px 28px 18px;
  background: var(--sun);
  transform: translate(11px, 13px) rotate(0.5deg);
}

.tv-frame {
  position: relative;
  margin: 0;
  padding: 12px;
  background: var(--white);
  border: 4px solid var(--ink);
  border-radius: 24px 18px 26px 16px;
  box-shadow: 0 16px 34px rgba(23, 19, 15, 0.1);
  transform: rotate(-0.2deg);
}

.tv-screen {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}

.tv-screen iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.tape {
  position: absolute;
  top: -13px;
  width: 96px;
  height: 26px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(23, 19, 15, 0.12);
  box-shadow: 0 2px 7px rgba(23, 19, 15, 0.1);
}

.tape-left { left: 36px; transform: rotate(-4.5deg); }
.tape-right { right: 36px; transform: rotate(4deg); }

.caption {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
}

.caption a {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  padding-bottom: 1px;
  border-bottom: 1px solid rgba(23, 19, 15, 0.2);
}

.caption a:hover { color: var(--red); border-bottom-color: var(--red); }

.hint {
  margin: 0;
  font-size: 12.5px;
  color: var(--muted);
}

.caption a:focus-visible {
  outline: 3px solid #2fa8e0;
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- corner watermark ---------- */

.rzh {
  position: fixed;
  right: 20px;
  bottom: 16px;
  z-index: 10;
  pointer-events: none;
  user-select: none;
  display: grid;
  justify-items: center;
  transform: rotate(-6deg);
  opacity: 0.55;
}

.rzh span {
  font-size: 30px;
  font-weight: 900;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--ink);
  text-shadow: 2px 2px 0 rgba(255, 210, 63, 0.85);
}

.rzh svg {
  width: 100%;
  height: 9px;
  margin-top: 2px;
}

@media (max-width: 760px) {
  .stage {
    justify-content: flex-start;
    padding: 54px 16px 26px;
    gap: 14px;
  }
  .tv { width: 100%; }
  .tv-frame { padding: 8px; border-width: 3px; border-radius: 18px 14px 20px 12px; }
  .tv-offset { transform: translate(7px, 9px) rotate(0.6deg); }
  .tape { width: 68px; height: 20px; top: -10px; }
  .tape-left { left: 22px; }
  .tape-right { right: 22px; }
  .caption { font-size: 14px; gap: 8px; }
  .hint { font-size: 12px; text-align: center; }
  .rzh { right: 14px; bottom: 12px; }
  .rzh span { font-size: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.001ms !important; }
}