/* ====================================
   设置界面样式
   ==================================== */

/* 主容器 */
.settings-container,
#app-settings {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  overflow: hidden;
}

/* ==================== 菜单列表 ==================== */
.settings-menu {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: 30px; /* 🔥🔥🔥 最关键！解决滚动回弹问题！ */
}

.settings-menu-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.settings-menu-item:hover {
  background: var(--bg-hover);
  border-color: var(--accent-color);
  transform: translateX(4px);
}

.settings-menu-item:active {
  transform: scale(0.98);
}

.settings-menu-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
  border-radius: 12px;
  color: var(--text-on-primary);
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.settings-menu-content {
  flex: 1;
}

.settings-menu-title {
  font-size: var(--font-size-base-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.settings-menu-desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.settings-menu-arrow {
  color: var(--text-tertiary);
  font-size: var(--font-size-lg);
}

/* ==================== 二级页面 ==================== */
.settings-detail {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: 30px;
}

.settings-section {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 20px;
  border: 1px solid var(--border-color);
}

.settings-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.settings-section-title i {
  color: var(--accent-color);
}

.settings-form-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.settings-form-item:last-child {
  margin-bottom: 0;
}

.settings-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.settings-input,
.settings-select {
  width: 100%;
  padding: 10px 12px;
  font-size: var(--font-size-md);
  color: var(--text-primary);
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  outline: none;
  transition: border-color var(--transition-fast);
  font-family: var(--font-family);
}

.settings-input:focus,
.settings-select:focus {
  border-color: var(--accent-color);
}

.settings-input::placeholder {
  color: var(--text-tertiary);
}

.settings-password-wrapper {
  position: relative;
}

.settings-password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  font-size: var(--font-size-base-lg);
}

.settings-password-toggle:hover {
  color: var(--text-primary);
}

.settings-input-group {
  display: flex;
  gap: 8px;
  align-items: center;
}

.settings-button-group {
  display: flex;
  gap: 8px;
}

.settings-select-wrapper {
  position: relative;
  width: 100%;
}

.settings-hint {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px;
  background: var(--color-primary-light);
  border-radius: 8px;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  margin-top: 8px;
}

.settings-hint i {
  color: var(--color-primary);
  margin-top: 2px;
  flex-shrink: 0;
}

.settings-buttons {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.settings-btn {
  flex: 1;
  padding: 12px;
  font-size: var(--font-size-base);
  font-weight: 500;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.settings-btn-primary {
  background: var(--accent-color);
  color: var(--text-on-primary);
  box-shadow: var(--shadow-sm);
}

.settings-btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.settings-btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.settings-btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.settings-btn-secondary:hover {
  background: var(--bg-hover);
  box-shadow: var(--shadow-md);
}

.settings-btn-danger {
  background: var(--error-color);
  color: var(--text-on-primary);
  box-shadow: var(--shadow-sm);
}

.settings-btn-danger:hover {
  opacity: 0.9;
  box-shadow: var(--shadow-md);
}

.settings-btn-danger:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.settings-danger-zone {
  margin-top: 16px;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--error-color);
  background: rgba(var(--semantic-error-rgb), 0.08);
}

.settings-about-info {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 4px;
  line-height: 1.4;
}

/* ==================== 导航栏 ==================== */
.settings-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--navbar-padding);
  background: var(--navbar-bg-standard);
  border-bottom: 1px solid var(--navbar-border);
  flex-shrink: 0;
  position: relative;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.settings-navbar::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--brand-primary) 50%,
    transparent 100%);
  opacity: 0.3;
}

.settings-navbar .nav-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--nav-title-font-size);
  font-weight: var(--nav-title-font-weight);
  color: var(--text-primary);
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.settings-navbar .nav-btn {
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--brand-primary);
  cursor: pointer;
  border-radius: 12px;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.settings-navbar .nav-btn i {
  font-size: 18px;
}

.settings-navbar .nav-btn:hover {
  background: var(--bg-hover);
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.settings-navbar .nav-btn:active {
  background: var(--bg-active);
  transform: scale(0.95);
}

/* 内容区域 */
.settings-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px;
  height: 100%;
}


/* 分组 */
.settings-group {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
  border: 1px solid var(--border-color);
}

.settings-group-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.settings-group-desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.5;
}

/* 表单项 */
.settings-item {
  margin-bottom: 12px;
}

.settings-item:last-child {
  margin-bottom: 0;
}

.settings-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.settings-label-required::after {
  content: ' *';
  color: var(--error-color);
}

.settings-input,
.settings-select {
  width: 100%;
  padding: 10px 12px;
  font-size: var(--font-size-md);
  color: var(--text-primary);
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.2s;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.settings-input:focus,
.settings-select:focus {
  border-color: var(--accent-color);
}

.settings-input::placeholder {
  color: var(--text-tertiary);
}

/* 密码输入框包装 */
.settings-password-wrapper {
  position: relative;
}

.settings-password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  font-size: var(--font-size-base-lg);
}

.settings-password-toggle:hover {
  color: var(--text-primary);
}

/* 提示文本 */
.settings-hint {
  font-size: var(--font-size-xs-md);
  color: var(--text-secondary);
  margin-top: 4px;
  line-height: 1.4;
}

.settings-hint-error {
  color: var(--error-color);
}

.settings-hint-success {
  color: var(--success-color);
}

/* 开关按钮 */
.settings-switch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

.settings-switch-label {
  font-size: var(--font-size-md);
  color: var(--text-primary);
  font-weight: 500;
}

.settings-switch-toggle {
  position: relative;
  width: 51px;
  height: 31px;
  background: var(--border-color);
  border-radius: 31px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.settings-switch-toggle.active {
  background: var(--success-color);
}

.settings-switch-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 27px;
  height: 27px;
  background: var(--text-on-primary);
  border-radius: 50%;
  transition: transform 0.3s;
  box-shadow: 0 2px 4px var(--shadow-color);
}

.settings-switch-toggle.active::after {
  transform: translateX(20px);
}

/* 按钮组 */
.settings-buttons {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.settings-btn {
  flex: 1;
  padding: 12px;
  font-size: var(--font-size-base);
  font-weight: 500;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.settings-btn-primary {
  background: var(--accent-color);
  color: white;
}

.settings-btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.settings-btn-primary:active {
  transform: translateY(0);
}

.settings-btn-secondary {
  background: var(--card-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.settings-btn-secondary:hover {
  background: var(--hover-bg);
}

.settings-btn-danger {
  background: var(--error-color);
  color: white;
}

.settings-btn-danger:hover {
  opacity: 0.9;
}

.settings-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 测试结果 */
.settings-test-result {
  margin-top: 12px;
  padding: 12px;
  border-radius: 8px;
  font-size: var(--font-size-sm);
  display: none;
}

.settings-test-result.success {
  display: block;
  background: rgba(var(--semantic-success-rgb), 0.1);
  color: var(--success-color);
  border: 1px solid var(--success-color);
}

.settings-test-result.error {
  display: block;
  background: rgba(var(--semantic-error-rgb), 0.1);
  color: var(--error-color);
  border: 1px solid var(--error-color);
}

.settings-test-result-title {
  font-weight: 600;
  margin-bottom: 4px;
}

.settings-test-result-message {
  line-height: 1.4;
}

/* 危险区域 */
.settings-danger-zone {
  background: rgba(var(--semantic-error-rgb), 0.05);
  border: 1px solid var(--error-color);
}

.settings-danger-zone .settings-group-title {
  color: var(--error-color);
}

.settings-danger-zone .settings-group-desc {
  color: var(--error-color);
  opacity: 0.8;
}

.settings-danger-zone .settings-btn {
  display: block;
  margin: 12px auto 0;
  width: auto;
  flex: none;
}

/* 分割线 */
.settings-divider {
  height: 1px;
  background: var(--border-color);
  margin: 16px 0;
}

/* 统计信息 */
.settings-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.settings-stat-item {
  background: var(--hover-bg);
  padding: 12px;
  border-radius: 8px;
  text-align: center;
}

.settings-stat-value {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 4px;
}

.settings-stat-label {
  font-size: var(--font-size-xs-md);
  color: var(--text-secondary);
}

.section-title i {
  color: var(--accent-color);
}

/* 主题预览 */
.settings-theme-preview {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.settings-theme-option {
  flex: 1;
  padding: 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  border: 2px solid transparent;
}

.settings-theme-option:hover {
  transform: translateY(-2px);
}

.settings-theme-option.active {
  border-color: var(--accent-color);
}

.settings-theme-option.active::after {
  content: '✓';
  position: absolute;
  top: 8px;
  right: 8px;
  width: 20px;
  height: 20px;
  background: var(--accent-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs-md);
  font-weight: bold;
}

.settings-theme-light {
  background: linear-gradient(135deg, var(--bg-screen) 0%, var(--bg-secondary) 100%);
  color: var(--text-primary);
}

.settings-theme-dark {
  background: linear-gradient(135deg, var(--bg-screen) 0%, var(--bg-app) 100%);
  color: var(--text-primary);
}

.settings-theme-name {
  font-size: var(--font-size-md);
  font-weight: 600;
  margin-bottom: 4px;
}

.settings-theme-desc {
  font-size: var(--font-size-xs-md);
  opacity: 0.7;
}

/* 加载状态 */
.settings-loading {
  text-align: center;
  padding: 40px 20px;
}

.settings-loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  margin: 0 auto 12px;
  animation: spin 0.8s linear infinite;
}

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

.settings-loading-text {
  font-size: var(--font-size-md);
  color: var(--text-secondary);
}

/* 响应式 */
@media (max-width: 600px) {
  .settings-content {
    padding: 12px;
  }
  
  .settings-group {
    padding: 12px;
  }
  
  .settings-buttons {
    flex-direction: column;
  }
  
  .settings-btn {
    width: 100%;
  }
}

/* 暗色模式特定样式 */
@media (prefers-color-scheme: dark) {
  .settings-input,
  .settings-select {
    background: var(--input-bg);
    border-color: var(--border-color);
  }
  
  .settings-theme-light {
    opacity: 0.8;
  }
}