:root {
  --mq-primary: #15c292;
  --mq-primary-hover: #12a87f;
  --mq-bg-page: #f5f6f8;
  --mq-bg-chat: #ffffff;
  --mq-border: #e8eaed;
  --mq-bubble-in-bg: #ffffff;
  --mq-bubble-in-text: #333333;
  --mq-bubble-in-border: #ebebeb;
  --mq-bubble-out-bg: #15c292;
  --mq-bubble-out-text: #ffffff;
  --mq-badge: #ff4d4f;
  --mq-radius-panel: 12px;
  --mq-radius-bubble: 8px;
  --mq-shadow-panel: 0 8px 32px rgba(0, 0, 0, 0.12);
  --mq-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
}

.mq-widget {
  position: fixed;
  z-index: 2147483000;
  font-family: var(--mq-font);
  font-size: 14px;
  line-height: 1.5;
}

.mq-launcher {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 56px;
  height: 56px;
  border: none;
  border-radius: 50%;
  background: var(--mq-primary);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(21, 194, 146, 0.35);
  transition: transform 0.2s;
}
.mq-launcher:hover { transform: scale(1.05); }

.mq-launcher__badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: var(--mq-badge);
  border-radius: 9px;
  font-size: 11px;
  line-height: 18px;
  text-align: center;
  color: #fff;
}

.mq-panel {
  position: fixed;
  right: 20px;
  bottom: 88px;
  width: 380px;
  height: 520px;
  background: var(--mq-bg-chat);
  border-radius: var(--mq-radius-panel);
  box-shadow: var(--mq-shadow-panel);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.mq-panel[hidden] { display: none !important; }

.mq-panel__header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--mq-border);
}

.mq-panel__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--mq-primary);
  object-fit: cover;
}

.mq-panel__info { flex: 1; }
.mq-panel__title { font-weight: 600; color: #333; display: block; }
.mq-panel__status { font-size: 12px; color: var(--mq-primary); }
.mq-panel__close {
  border: none;
  background: none;
  font-size: 22px;
  color: #999;
  cursor: pointer;
}

.mq-panel__body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  background: var(--mq-bg-page);
}

.mq-messages { list-style: none; margin: 0; padding: 0; }
.mq-msg { display: flex; margin-bottom: 14px; gap: 8px; }
.mq-msg--out { flex-direction: row-reverse; }
.mq-msg--system { justify-content: center; }
.mq-msg--system .mq-msg__bubble {
  background: transparent;
  border: none;
  color: #999;
  font-size: 12px;
  padding: 0;
}

.mq-msg__bubble {
  max-width: 72%;
  padding: 10px 14px;
  border-radius: var(--mq-radius-bubble);
  word-break: break-word;
}
.mq-msg--in .mq-msg__bubble {
  background: var(--mq-bubble-in-bg);
  border: 1px solid var(--mq-bubble-in-border);
  color: var(--mq-bubble-in-text);
  border-bottom-left-radius: 2px;
}
.mq-msg--out .mq-msg__bubble {
  background: var(--mq-bubble-out-bg);
  color: var(--mq-bubble-out-text);
  border-bottom-right-radius: 2px;
}

.mq-panel__footer {
  border-top: 1px solid var(--mq-border);
  padding: 8px 12px 12px;
  background: #fff;
}

.mq-input-wrap { display: flex; align-items: flex-end; gap: 8px; }
.mq-input {
  flex: 1;
  border: 1px solid var(--mq-border);
  border-radius: 8px;
  padding: 8px 12px;
  resize: none;
  max-height: 100px;
  outline: none;
  font-family: inherit;
}
.mq-input:focus { border-color: var(--mq-primary); }

.mq-send {
  padding: 8px 16px;
  background: var(--mq-primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}
.mq-msg__img { max-width: 200px; border-radius: 6px; display: block; }

.mq-toolbar { margin-bottom: 6px; }
.mq-toolbar__file {
  border: none;
  background: none;
  cursor: pointer;
  font-size: 18px;
  padding: 4px;
}

.mq-typing {
  font-size: 12px;
  color: var(--mq-text-muted);
  padding: 4px 12px 0;
}
.mq-typing__dot { animation: mq-blink 1.2s infinite; }
.mq-typing__dot:nth-child(2) { animation-delay: .2s; }
.mq-typing__dot:nth-child(3) { animation-delay: .4s; }
@keyframes mq-blink {
  0%, 80%, 100% { opacity: .2; }
  40% { opacity: 1; }
}

.mq-rating { text-align: center; padding: 8px 0; }
.mq-rating__title { font-size: 14px; color: var(--mq-text-primary); margin-bottom: 8px; }
.mq-rating__stars { display: flex; justify-content: center; gap: 6px; margin-bottom: 8px; }
.mq-rating__star {
  border: none; background: none; font-size: 28px; color: #ddd; cursor: pointer; padding: 0;
}
.mq-rating__star.active { color: #ffb800; }
.mq-rating__comment {
  width: 100%; border: 1px solid var(--mq-border); border-radius: 8px;
  padding: 8px; font-family: inherit; margin-bottom: 8px; resize: none;
}
.mq-rating__submit {
  width: 100%; padding: 10px; background: var(--mq-primary); color: #fff;
  border: none; border-radius: 8px; cursor: pointer; font-size: 14px;
}
.mq-rating__done { text-align: center; color: var(--mq-text-muted); padding: 16px 0; font-size: 14px; }

@media (max-width: 480px) {
  .mq-panel { inset: 0; width: 100%; height: 100%; border-radius: 0; bottom: 0; }
  .mq-launcher { right: 16px; bottom: 16px; width: 48px; height: 48px; }
}