/* 基础样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  overflow-x: hidden;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.5);
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  outline: none;
}

.btn-primary {
  background: linear-gradient(to right, #3b82f6, #8b5cf6);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* 卡片样式 */
.card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.card:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

/* 表单样式 */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 14px;
  transition: all 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

/* 加载动画 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .grid-cols-1 md:grid-cols-3 {
    grid-template-columns: 1fr;
  }

  .grid-cols-1 md:grid-cols-2 lg:grid-cols-4 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .grid-cols-1 md:grid-cols-2 lg:grid-cols-4 {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }
}

/* 模态框动画 */
.modal-enter {
  opacity: 0;
}

.modal-enter-active {
  opacity: 1;
  transition: opacity 300ms;
}

.modal-exit {
  opacity: 1;
}

.modal-exit-active {
  opacity: 0;
  transition: opacity 300ms;
}

/* 工具提示 */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 120px;
  background-color: rgba(0, 0, 0, 0.8);
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 5px;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  margin-left: -60px;
  opacity: 0;
  transition: opacity 0.3s;
}

.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}

/* 代码高亮 */
.code-block {
  background: rgba(0, 0, 0, 0.5);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  font-family: 'Courier New', Courier, monospace;
  font-size: 14px;
  line-height: 1.5;
  margin: 16px 0;
}

/* 图片预览 */
.image-preview {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.image-preview:hover {
  transform: scale(1.02);
}

/* 聊天消息样式 */
.message {
  margin-bottom: 16px;
  max-width: 80%;
  animation: fadeIn 0.3s ease;
}

.message-user {
  margin-left: auto;
  background: rgba(59, 130, 246, 0.2);
  border-radius: 18px 18px 4px 18px;
  padding: 12px 16px;
}

.message-ai {
  margin-right: auto;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 18px 18px 18px 4px;
  padding: 12px 16px;
}

/* 加载状态 */
.loading-state {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  color: rgba(255, 255, 255, 0.6);
}

/* 错误状态 */
.error-state {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid rgba(239, 68, 68, 0.4);
  border-radius: 8px;
  padding: 16px;
  margin: 16px 0;
  color: #fca5a5;
}

/* 成功状态 */
.success-state {
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid rgba(16, 185, 129, 0.4);
  border-radius: 8px;
  padding: 16px;
  margin: 16px 0;
  color: #6ee7b7;
}