.aoba-tutorial-intro {
  width: min(440px, calc(100% - 32px));
  box-sizing: border-box;
  border: 1px solid #aacdd4;
  border-radius: 12px;
  padding: 24px;
  background: #fff;
  color: #071b2b;
  box-shadow: 0 16px 48px #071b2b44;
}
.aoba-tutorial-intro::backdrop { background: #071b2b99; }
.aoba-tutorial-intro h2, .aoba-tutorial-guide h2 { margin: 0; font-size: 18px; }
.aoba-tutorial-intro p, .aoba-tutorial-guide p { margin: 10px 0 14px; line-height: 1.6; }
.tutorial-actions { display: flex; justify-content: flex-end; gap: 8px; }
.aoba-tutorial-guide {
  position: fixed;
  z-index: 100;
  box-sizing: border-box;
  left: var(--guide-left, max(12px, calc(50% - 180px)));
  top: var(--guide-top, auto);
  bottom: 16px;
  width: min(360px, calc(100% - 24px));
  height: max-content;
  max-height: calc(100dvh - 24px);
  overflow: auto;
  padding: 14px 16px;
  border: 2px solid #167d8d;
  border-radius: 10px;
  background: #fff;
  color: #071b2b;
  box-shadow: 0 8px 24px #071b2b55;
}
.aoba-tutorial-guide small { color: #167d8d; }
.aoba-tutorial-ring {
  position: fixed;
  z-index: 99;
  box-sizing: border-box;
  pointer-events: none;
  border: 3px solid #ffe984;
  border-radius: 50%;
  box-shadow: 0 0 0 4px #071b2b, 0 0 14px 7px #ffe98488;
  animation: aoba-tutorial-pulse 1.3s ease-in-out infinite alternate;
}
@keyframes aoba-tutorial-pulse {
  from { opacity: .45; }
  to { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .aoba-tutorial-ring { animation: none; }
}