#blog-ai-root {
  position: fixed;
  left: 20px;
  bottom: 90px;
  z-index: 9999;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

#blog-ai-toggle {
  width: 54px;
  height: 54px;
  border: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, #0f766e, #0ea5e9);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 10px 28px rgba(2, 132, 199, 0.35);
  font-size: 24px;
}

#blog-ai-panel {
  position: absolute;
  left: 0;
  bottom: 66px;
  width: min(380px, calc(100vw - 24px));
  height: min(560px, calc(100vh - 150px));
  background: var(--card-bg);
  color: var(--font-color);
  border: 1px solid rgba(120, 120, 120, 0.25);
  border-radius: 16px;
  box-shadow: 0 14px 42px rgba(0, 0, 0, 0.24);
  overflow: hidden;
  display: none;
  z-index: 10000;
}

#blog-ai-panel.open {
  display: flex;
  flex-direction: column;
}

#blog-ai-root.live2d-trigger-mode #blog-ai-toggle {
  display: none;
}

#blog-ai-root.strict-live2d-mode #blog-ai-toggle {
  display: none;
}

#blog-ai-root.live2d-trigger-mode #blog-ai-panel {
  bottom: 210px;
}

#blog-ai-root.live2d-anchor-mode #blog-ai-panel {
  position: fixed;
}

#live2d-widget,
#live2dcanvas {
  z-index: 9000 !important;
}

#blog-ai-header {
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(110deg, rgba(15, 118, 110, 0.12), rgba(14, 165, 233, 0.12));
  border-bottom: 1px solid rgba(120, 120, 120, 0.22);
  font-weight: 600;
}

#blog-ai-close {
  border: 0;
  background: transparent;
  color: var(--font-color);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
}

#blog-ai-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.blog-ai-msg {
  max-width: 92%;
  padding: 10px 12px;
  border-radius: 12px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 14px;
}

.blog-ai-user {
  align-self: flex-end;
  background: rgba(14, 165, 233, 0.18);
}

.blog-ai-assistant {
  align-self: flex-start;
  background: rgba(15, 118, 110, 0.14);
}

.blog-ai-system {
  align-self: center;
  background: rgba(125, 125, 125, 0.15);
  font-size: 13px;
}

#blog-ai-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 10px;
  border-top: 1px solid rgba(120, 120, 120, 0.2);
}

#blog-ai-input {
  resize: none;
  border: 1px solid rgba(120, 120, 120, 0.4);
  border-radius: 10px;
  min-height: 44px;
  max-height: 120px;
  padding: 8px 10px;
  font-size: 14px;
  background: var(--card-bg);
  color: var(--font-color);
}

#blog-ai-send {
  border: 0;
  border-radius: 10px;
  padding: 0 14px;
  background: #0ea5e9;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

#blog-ai-send:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@media (max-width: 768px) {
  #blog-ai-root {
    left: 12px;
    bottom: 82px;
  }

  #blog-ai-panel {
    left: 0;
    width: min(96vw, 380px);
    height: min(70vh, 540px);
  }

  #blog-ai-root.live2d-trigger-mode #blog-ai-panel {
    bottom: 160px;
  }
}