.faq-bubble-btn {
  position: fixed; bottom: 90px; right: 25px; z-index: 9999;
  width: 56px; height: 56px; border-radius: 50%; border: none;
  background: #005A40; color: #fff; font-size: 24px; cursor: pointer;
  box-shadow: 0 4px 16px rgba(0,90,64,0.4);
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.faq-bubble-btn:hover { transform: scale(1.08); box-shadow: 0 6px 24px rgba(0,90,64,0.5); }
.faq-bubble-btn .close-icon { display: none; }
.faq-bubble-btn.open .bubble-icon { display: none; }
.faq-bubble-btn.open .close-icon { display: block; }

.faq-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4); z-index: 9998;
  display: none; animation: fadeIn 0.2s;
}

.faq-panel {
  position: fixed; bottom: 155px; right: 25px; z-index: 10000;
  width: 380px; max-height: 550px; background: #fff; border-radius: 12px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.18);
  display: none; flex-direction: column; overflow: hidden;
  animation: slideUp 0.25s ease-out;
}

.faq-panel.open { display: flex; }
.faq-overlay.open { display: block; }

.faq-panel-header {
  background: #005A40; color: #fff; padding: 16px 20px; flex-shrink: 0;
}
.faq-panel-header h3 { margin: 0; font-size: 16px; font-weight: 700; }
.faq-panel-header p { margin: 4px 0 0; font-size: 12px; opacity: 0.8; }

.faq-panel-body {
  flex: 1; overflow-y: auto; padding: 8px 0;
}

.faq-item {
  border-bottom: 1px solid #f0f0f0;
}
.faq-question {
  width: 100%; padding: 14px 20px; border: none; background: none;
  font-size: 14px; font-weight: 600; color: #333; cursor: pointer;
  text-align: left; display: flex; justify-content: space-between; align-items: center;
  transition: background 0.15s;
  font-family: inherit;
}
.faq-question:hover { background: #f9f9f9; }
.faq-question i { transition: transform 0.2s; font-size: 12px; color: #005A40; }
.faq-question.open i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.25s ease, padding 0.25s ease;
  padding: 0 20px; font-size: 13px; color: #666; line-height: 1.7;
}
.faq-answer.open { max-height: 500px; padding: 0 20px 16px; }

.faq-loading, .faq-empty {
  padding: 30px; text-align: center; color: #888; font-size: 14px;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 480px) {
  .faq-panel { width: calc(100% - 30px); right: 15px; bottom: 145px; max-height: 60vh; }
}