/* ============================================
   2027AI旗舰版 - AI Chat Widget Styles
   ============================================ */

/* Floating Chat Button */
.chat-float-btn {
  position: fixed;
  right: 32px;
  bottom: 40px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--gradient-primary);
  border: none;
  cursor: pointer;
  z-index: 9980;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 24px rgba(0,179,126,0.3);
  transition: var(--transition-spring);
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
}

.chat-float-btn.show {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.chat-float-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 32px rgba(0,179,126,0.45);
}

.chat-float-btn svg {
  width: 28px;
  height: 28px;
}

.chat-float-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0;
  animation: chatFloatPulse 2s ease-in-out infinite;
}

@keyframes chatFloatPulse {
  0% { transform: scale(1); opacity: 0.3; }
  100% { transform: scale(1.5); opacity: 0; }
}

/* Overlay */
.ai-chat-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 9996;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.ai-chat-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Widget */
.ai-chat-widget {
  position: fixed;
  right: 32px;
  bottom: 120px;
  width: 400px;
  height: 580px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  z-index: 9997;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.95);
  transition: var(--transition-spring);
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
  overflow: hidden;
}

.ai-chat-widget.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.ai-chat-widget.minimized {
  height: 72px;
}

/* Header */
.ai-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: var(--gradient-primary);
  flex-shrink: 0;
}

.ai-chat-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ai-chat-avatar {
  position: relative;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-chat-avatar-inner {
  font-size: 1.5rem;
  line-height: 1;
}

.ai-chat-dot {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #4ade80;
  border: 2px solid var(--primary-dark);
  animation: status-pulse 2s ease-in-out infinite;
}

.ai-chat-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ai-chat-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
}

.ai-chat-status {
  font-size: 0.75rem;
  color: rgba(5,8,15,0.6);
}

.ai-chat-header-actions {
  display: flex;
  gap: 4px;
}

.ai-chat-action-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(5,8,15,0.1);
  border: none;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.ai-chat-action-btn:hover {
  background: rgba(5,8,15,0.2);
}

/* Messages */
.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  background: var(--bg-deep);
}

.ai-chat-messages::-webkit-scrollbar { width: 4px; }
.ai-chat-messages::-webkit-scrollbar-track { background: transparent; }
.ai-chat-messages::-webkit-scrollbar-thumb { background: rgba(0,179,126,0.2); border-radius: 2px; }

.ai-message {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  animation: fade-up 0.3s ease;
}

.ai-message.ai-message-in { flex-direction: row; }
.ai-message.ai-message-out { flex-direction: row-reverse; }

.ai-message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(0,179,126,0.1);
  border: 1px solid rgba(0,179,126,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.ai-message.ai-message-out .ai-message-avatar {
  background: rgba(0,149,255,0.1);
  border-color: rgba(0,149,255,0.15);
}

.message-sender {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 6px;
}

.ai-message.ai-message-out .message-sender {
  text-align: right;
  color: var(--accent-blue);
}

.ai-message-content {
  max-width: 75%;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  padding: 14px 18px;
  border-radius: 16px 16px 16px 4px;
}

.ai-message.ai-message-out .ai-message-content {
  background: rgba(0,179,126,0.08);
  border-color: rgba(0,179,126,0.12);
  border-radius: 16px 16px 4px 16px;
}

.ai-message-content p {
  font-size: 0.9375rem;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 8px;
}

.ai-message-content p:last-child { margin-bottom: 0; }

.ai-message-content ul {
  margin: 8px 0;
  padding-left: 20px;
}

.ai-message-content li {
  font-size: 0.9375rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.ai-message-time {
  font-size: 0.7rem;
  color: var(--text-muted);
  display: block;
  margin-top: 6px;
}

/* Input */
.ai-chat-input-area {
  flex-shrink: 0;
  padding: 0;
  background: var(--bg-card);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.ai-chat-quick-bar {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  overflow-x: auto;
  scrollbar-width: none;
}

.ai-chat-quick-bar::-webkit-scrollbar { display: none; }

.ai-chat-quick-bar button {
  flex-shrink: 0;
  padding: 6px 14px;
  background: rgba(0,179,126,0.08);
  border: 1px solid rgba(0,179,126,0.12);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  color: var(--primary);
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
  font-family: var(--font-sans);
}

.ai-chat-quick-bar button:hover {
  background: rgba(0,179,126,0.15);
}

.ai-chat-input-row {
  display: flex;
  gap: 12px;
  padding: 12px 16px 16px;
}

.ai-chat-input {
  flex: 1;
  padding: 12px 16px;
  background: var(--bg-deep);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition-fast);
  font-family: var(--font-sans);
}

.ai-chat-input:focus {
  border-color: rgba(0,179,126,0.3);
}

.ai-chat-input::placeholder {
  color: var(--text-muted);
}

.ai-chat-send-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  border: none;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.ai-chat-send-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(0,179,126,0.3);
}

/* Typing Indicator */
.typing-indicator {
  display: flex;
  gap: 4px;
  align-items: center;
  padding: 12px 16px;
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.3;
  animation: typingDot 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingDot {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.3; }
  30% { transform: translateY(-8px); opacity: 1; }
}

/* Responsive */
@media (max-width: 500px) {
  .ai-chat-widget {
    right: 12px;
    left: 12px;
    bottom: 100px;
    width: auto;
  }
  .chat-float-btn {
    right: 20px;
    bottom: 30px;
    width: 52px;
    height: 52px;
  }
  .chat-float-btn svg { width: 24px; height: 24px; }
}