.training-mode [data-internal-content] {
  display: none !important;
}

[data-training-only] {
  display: none !important;
}

.training-mode [data-training-only] {
  display: grid !important;
}

.training-mode-switch {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 9999;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 7px 10px 7px 14px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(15, 19, 17, 0.9);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.24);
  font: 700 11px/1 "Microsoft YaHei UI", "PingFang SC", sans-serif;
  letter-spacing: 0.04em;
  cursor: pointer;
  backdrop-filter: blur(18px);
}

.training-mode-switch:hover {
  border-color: rgba(184, 242, 56, 0.5);
}

.training-mode-switch:focus-visible {
  outline: 3px solid rgba(184, 242, 56, 0.42);
  outline-offset: 3px;
}

.training-mode-switch-track {
  position: relative;
  width: 38px;
  height: 22px;
  flex: 0 0 auto;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  transition: background 180ms ease;
}

.training-mode-switch-track::after {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  content: "";
  transition: transform 180ms ease, background 180ms ease;
}

.training-mode-switch[aria-checked="true"] .training-mode-switch-track {
  background: #9bd91f;
}

.training-mode-switch[aria-checked="true"] .training-mode-switch-track::after {
  background: #111512;
  transform: translateX(16px);
}

.training-mode-placeholder {
  min-height: calc(100vh - 96px);
  place-items: center;
  padding: 80px 24px;
  color: #fff;
  text-align: center;
  background:
    radial-gradient(circle at 50% 18%, rgba(184, 242, 56, 0.1), transparent 34%),
    #0a1014;
}

.training-mode-placeholder > div {
  max-width: 580px;
}

.training-mode-placeholder span {
  color: #b8f238;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.training-mode-placeholder h1 {
  margin: 18px 0 12px;
  font-size: clamp(34px, 6vw, 70px);
  line-height: 1;
}

.training-mode-placeholder p {
  margin: 0;
  color: rgba(255, 255, 255, 0.56);
}

.training-mode-placeholder a {
  display: inline-flex;
  margin-top: 28px;
  padding: 12px 18px;
  border-radius: 999px;
  color: #111512;
  background: #b8f238;
  font-size: 13px;
  font-weight: 800;
}

@media (max-width: 520px) {
  .training-mode-switch {
    right: max(12px, env(safe-area-inset-right));
    bottom: max(12px, env(safe-area-inset-bottom));
  }
}

@media print {
  .training-mode-switch {
    display: none !important;
  }
}