:root {
  /* 基础颜色变量 */
  --primary-color: #2196f3;
  --primary-dark: #1976d2;
  --primary-color-alpha: rgba(33, 150, 243, 0.1);
  --success-color: #4caf50;
  --error-color: #f44336;
  --background-color: #f5f5f5;
  --card-background: #ffffff;
  --text-primary: #333333;
  --text-secondary: #757575;
  --border-color: #e0e0e0;
  --disabled-bg: #f5f5f5;

  /* 布局变量 */
  --border-radius: 8px;
  --spacing: 20px;

  /* 动画变量 */
  --transition-fast: 0.2s;
  --transition-slow: 0.3s;
}

/* 暗色模式 */
@media (prefers-color-scheme: dark) {
  :root {
    --primary-color: #90caf9;
    --primary-dark: #64b5f6;
    --background-color: #121212;
    --card-background: #1e1e1e;
    --text-primary: #e0e0e0;
    --text-secondary: #9e9e9e;
    --border-color: #404040;
    --disabled-bg: #2d2d2d;
    color-scheme: dark;
  }
}

/* 基础样式 */
html {
  scroll-behavior: smooth;
  box-sizing: border-box;
}

*,
*:before,
*:after {
  box-sizing: inherit;
}

body {
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    sans-serif;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing);
  background: var(--background-color);
  color: var(--text-primary);
  line-height: 1.6;
}

/* 容器样式 */
.container {
  background: var(--card-background);
  padding: var(--spacing);
  border-radius: var(--border-radius);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  margin-bottom: var(--spacing);
  transition: transform var(--transition-fast);
}

.container:hover {
  transform: translateY(-2px);
}

/* 标题样式 */
h1,
h2,
h3 {
  color: var(--text-primary);
  margin-top: 0;
  line-height: 1.2;
}

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

/* 标签样式 */
label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-primary);
}

input,
select,
textarea,
.form-control {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--card-background);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  transition: all var(--transition-fast);
  appearance: none;
}

input[type="checkbox"] {
  width: auto;
  margin-right: 8px;
  cursor: pointer;
  appearance: auto;
}

input[type="checkbox"] + label {
  cursor: pointer;
  color: var(--text-primary);
  user-select: none;
}

input:hover,
select:hover,
textarea:hover,
.form-control:hover {
  border-color: var(--primary-color);
}

input:focus,
select:focus,
textarea:focus,
.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px var(--primary-color-alpha);
  outline: none;
}

/* 禁用状态 */
input:disabled,
select:disabled,
textarea:disabled,
.form-control:disabled {
  background-color: var(--disabled-bg);
  border-color: var(--border-color);
  cursor: not-allowed;
  opacity: 0.7;
}

/* 错误状态 */
input.error,
select.error,
textarea.error,
.form-control.error {
  border-color: var(--error-color);
}

/* Select 特殊样式 */
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23757575'%3E%3Cpath d='M7 10l5 5 5-5H7z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 20px;
  padding-right: 36px;
}

/* Textarea 特殊样式 */
textarea {
  min-height: 150px;
  resize: vertical;
  font-family: monospace;
  line-height: 1.4;
}

/* 按钮基础样式 */
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 24px;
  border: none;
  border-radius: var(--border-radius);
  background: var(--primary-color);
  color: white;
  font-size: 16px;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

/* 按钮状态 */
button:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--primary-color-alpha);
}

button:active {
  transform: translateY(1px);
}

button:disabled {
  background: var(--disabled-bg);
  color: var(--text-secondary);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* 次要按钮样式 */
button.secondary {
  background: transparent;
  border: 1px solid var(--primary-color);
  color: var(--primary-color);
}

button.secondary:hover {
  background: var(--primary-color-alpha);
  border-color: var(--primary-dark);
  color: var(--primary-dark);
}

button.danger {
  background: var(--error-color);
  border: none;
}

button.danger:hover {
  background: #d32f2f;
  /* 深红色 */
  box-shadow: 0 4px 12px rgba(244, 67, 54, 0.2);
}

/* 激活状态的按钮 */
button.active {
  background: var(--primary-dark);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
  transform: translateY(1px);
}

button.secondary.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-dark);
}

/* 按钮组 */
.button-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: flex-end;
  margin: 0;
}

/* 按钮组中的按钮间距调整 */
.button-group button {
  height: 38px;
  min-width: 100px;
  white-space: nowrap;
}

.button-group button .context-menu-shortcut {
  margin-left: 5px;
  opacity: 0.7;
  font-size: 12px;
}

/* 消息容器 - 固定在顶部中间 */
.message-container {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
  /* 允许点击穿透 */
}

/* 单个消息样式 */
.message {
  padding: 12px 20px;
  border-radius: 4px;
  background: var(--card-background);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  margin-bottom: 10px;
  pointer-events: auto;
  /* 允许消息本身可以交互 */
  min-width: 300px;
  max-width: 500px;
  display: flex;
  align-items: center;
  transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
  animation: messageIn 0.3s ease-in-out;
}

.message.success {
  background: #f0f9eb;
  border: 1px solid #e1f3d8;
}

.message.error {
  background: #fef0f0;
  border: 1px solid #fde2e2;
}

@keyframes messageIn {
  0% {
    opacity: 0;
    transform: translateY(-20px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes messageOut {
  0% {
    opacity: 1;
    transform: translateY(0);
  }

  100% {
    opacity: 0;
    transform: translateY(-20px);
  }
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
  .message {
    background: #2c2c2c;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  }

  .message.success {
    background: #294929;
    border-color: #1c321c;
  }

  .message.error {
    background: #4d2c2c;
    border-color: #321c1c;
  }
}

/* 表格样式 */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--spacing);
  background: var(--card-background);
  border-radius: var(--border-radius);
  overflow: hidden;
}

th,
td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--text-secondary);
}

th {
  background: var(--primary-color);
  color: white;
  font-weight: 500;
}

tr:nth-child(even) {
  background: rgba(0, 0, 0, 0.02);
}

tr:hover {
  background: rgba(0, 0, 0, 0.04);
}

/* 辅助类 */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.text-center {
  text-align: center;
}

.help-text {
  margin-top: 4px;
  font-size: 14px;
  color: var(--text-secondary);
}

.error-text {
  color: var(--error-color);
}

.mt-0 {
  margin-top: 0;
}

.mb-0 {
  margin-bottom: 0;
}

/* 托盘消息容器 */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 1000;
  max-width: 350px;
  max-height: 80vh;
  overflow-y: hidden;
  padding-top: 10px;
  padding-bottom: 10px;
  padding-right: 5px;
}

.toast {
  background: var(--card-background);
  color: var(--text-primary);
  padding: 10px 16px;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
    transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  min-width: 200px;
  margin-left: auto;
  will-change: transform, opacity;
  pointer-events: auto;
}

.toast.info {
  border-left: 4px solid #2196f3;
}

.toast.error {
  background: #f44336;
  color: white;
}

.toast.success {
  background: #4caf50;
  color: white;
}

.toast.warning {
  background: #ff9800;
  color: white;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  :root {
    --spacing: 16px;
  }

  body {
    padding: 10px;
  }

  .button-group {
    flex-direction: column;
  }

  button {
    width: 100%;
    padding: 12px 20px;
  }

  input,
  select,
  textarea,
  .form-control {
    font-size: 16px;
    padding: 14px 16px;
  }

  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  th,
  td {
    white-space: nowrap;
  }
}
