/* ==================== 設置頁面樣式 ==================== */

/* 返回按鈕 */
.back-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 20px;
  cursor: pointer;
  padding: 8px;
  margin-right: 12px;
  border-radius: var(--radius-full);
  transition: background 0.2s;
}

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

/* 設置頁面佈局 */
.settings-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.settings-container {
  display: flex;
  flex: 1;
  overflow: hidden;
  border-top: 1px solid var(--border-color);
}

/* 左側子導航 */
.settings-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
  padding: var(--spacing-md);
  
  /* 自定義捲軸樣式 - 細的 */
  scrollbar-width: thin; /* Firefox */
  scrollbar-color: rgba(255, 255, 255, 0.2) var(--bg-primary); /* Firefox */
}

/* WebKit 瀏覽器的捲軸樣式 */
.settings-sidebar::-webkit-scrollbar {
  width: 6px;
}

.settings-sidebar::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

.settings-sidebar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

.settings-sidebar::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

.settings-nav-btn {
  width: 100%;
  padding: 12px 16px;
  background: transparent;
  color: var(--text-secondary);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.2s;
  cursor: pointer;
  text-align: left;
  margin-bottom: 4px;
}

.settings-nav-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.settings-nav-btn.active {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background: rgba(var(--primary-color-rgb), 0.1);
}

.settings-nav-btn i {
  width: 20px;
  text-align: center;
  font-size: 16px;
}

.settings-nav-btn span {
  flex: 1;
}

/* 右側內容區 */
.settings-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-xl);
  background: var(--bg-secondary);
  
  /* 自定義捲軸樣式 - 細的 */
  scrollbar-width: thin; /* Firefox */
  scrollbar-color: rgba(255, 255, 255, 0.2) var(--bg-secondary); /* Firefox */
}

/* WebKit 瀏覽器的捲軸樣式 */
.settings-content::-webkit-scrollbar {
  width: 6px;
}

.settings-content::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

.settings-content::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

.settings-content::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

.settings-section {
  display: none;
}

.settings-section.active {
  display: block;
}

.section-title {
  font-size: 20px;
  font-weight: bold;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--border-color);
}

/* 佔位內容 */
.placeholder-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  min-height: 400px;
  text-align: center;
}

.placeholder-icon {
  font-size: 80px;
  margin-bottom: var(--spacing-lg);
  opacity: 0.5;
}

.placeholder-text {
  font-size: 20px;
  font-weight: bold;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.placeholder-subtext {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 400px;
  line-height: 1.6;
}

.placeholder-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
}

/* ==================== 設置卡片 ==================== */
.settings-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.card-subtitle {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

/* ==================== 表單元素 ==================== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 15px;
  transition: border-color 0.2s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-textarea {
  resize: vertical;
  font-family: inherit;
}

.help-text {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

/* 帶前綴的輸入框 */
.input-with-prefix {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix {
  position: absolute;
  left: 16px;
  color: var(--text-secondary);
  font-weight: 600;
  pointer-events: none;
}

.input-with-prefix .form-input {
  padding-left: 32px;
}

/* ==================== 頭像上傳 ==================== */
.avatar-upload-section {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
  margin-bottom: var(--spacing-xl);
}

.avatar-preview {
  position: relative;
  width: 120px;
  height: 120px;
  border-radius: var(--radius-full);
  overflow: hidden;
  background: var(--bg-tertiary);
  border: 3px solid var(--border-color);
  flex-shrink: 0;
}

.avatar-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
  cursor: pointer;
}

.avatar-preview:hover .avatar-overlay {
  opacity: 1;
}

.avatar-overlay i {
  font-size: 32px;
  color: white;
}

.avatar-upload-info h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

/* ==================== 封面上傳 ==================== */
.cover-upload-section {
  margin-bottom: var(--spacing-xl);
}

.cover-preview {
  width: 100%;
  height: 200px;
  border-radius: var(--radius-lg);
  background: var(--bg-tertiary);
  border: 2px dashed var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  cursor: pointer;
  transition: border-color 0.2s;
  overflow: hidden;
}

.cover-preview:hover {
  border-color: var(--primary-color);
}

.cover-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cover-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-secondary);
}

.cover-overlay i {
  font-size: 32px;
}

.cover-upload-info h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

/* ==================== 所見即所得預覽區（新版） ==================== */
.profile-preview-section {
  position: relative;
  margin: 0 -24px; /* 延伸到卡片邊緣 */
}

/* 封面編輯區 */
.profile-cover-edit {
  height: 200px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, 
    rgba(29, 155, 240, 0.3) 0%, 
    rgba(0, 186, 124, 0.3) 50%, 
    rgba(255, 215, 0, 0.3) 100%
  );
}

.profile-cover-edit img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  position: relative;
  z-index: 1; /* 确保图片在遮罩下方 */
}

.cover-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, 
    rgba(29, 155, 240, 0.3) 0%, 
    rgba(0, 186, 124, 0.3) 50%, 
    rgba(255, 215, 0, 0.3) 100%
  );
}

/* 頭像編輯區 */
.profile-avatar-edit-wrapper {
  position: relative;
  padding: 0 24px;
  margin-top: -75px;
  margin-bottom: 16px;
}

.profile-avatar-edit {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 4px solid var(--bg-primary);
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, var(--primary-color), var(--success));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 48px;
  font-weight: 600;
}

.profile-avatar-edit img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2; /* 提高 z-index，确保在封面图片上方 */
}

/* 字母头像显示 */
.avatar-letter {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 48px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--primary-color), var(--success)); /* 添加背景渐变 */
  z-index: 2; /* 提高 z-index，确保在封面图片上方 */
  pointer-events: none; /* 不拦截事件 */
}

/* 懸停編輯遮罩 */
.image-edit-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  opacity: 0;
  transition: opacity 0.3s ease;
  cursor: pointer;
  z-index: 10; /* 提高 z-index 确保遮罩在最上层 */
  pointer-events: none; /* 默认不拦截事件 */
}

/* 悬停时显示遮罩并启用事件 */
.profile-cover-edit:hover .image-edit-overlay,
.profile-avatar-edit:hover .image-edit-overlay {
  opacity: 1;
  pointer-events: auto;
}

/* 編輯按鈕 */
.image-edit-overlay button {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid white;
  color: white;
  font-size: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.image-edit-overlay button:hover {
  transform: scale(1.1);
  background: rgba(255, 255, 255, 0.3);
}

.image-edit-overlay .delete-btn:hover {
  background: rgba(239, 68, 68, 0.8);
  border-color: #ef4444;
}

/* ==================== 按鈕組 ==================== */
.button-group {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.btn-text {
  background: none;
  border: none;
  color: var(--danger);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  transition: background 0.2s;
}

.btn-text:hover {
  background: rgba(255, 59, 48, 0.1);
}

/* ==================== 創作者狀態橫幅 ==================== */
/* KYC 狀態卡片 */
.kyc-status-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.creator-status-banner {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
}

.creator-status-icon {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.creator-status-icon i {
  font-size: 28px;
  color: #FFD700;
}

.creator-status-info {
  flex: 1;
}

.creator-status-info h3 {
  font-size: 18px;
  font-weight: bold;
  color: white;
  margin-bottom: 4px;
}

.creator-status-info p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
}

.creator-status-help {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--text-secondary);
}

/* ==================== Toggle 開關 ==================== */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 52px;
  height: 28px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--bg-tertiary);
  transition: 0.3s;
  border-radius: 28px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--primary-color);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(24px);
}

/* ==================== Toggle 選項 ==================== */
.toggle-option {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  cursor: pointer;
}

.toggle-option input[type="checkbox"] {
  margin-top: 2px;
  width: 20px;
  height: 20px;
  cursor: pointer;
  flex-shrink: 0;
  accent-color: var(--text-primary);
}

.toggle-option-label {
  flex: 1;
}

.toggle-option-label strong {
  display: block;
  font-size: 15px;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.toggle-option-label small {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ==================== 滑桿 ==================== */
.slider-container {
  margin: var(--spacing-md) 0;
}

.form-slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--bg-tertiary);
  outline: none;
  -webkit-appearance: none;
}

.form-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
}

.form-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: none;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-sm);
  font-size: 13px;
  color: var(--text-secondary);
}

.slider-labels span:nth-child(2) {
  font-weight: 600;
  color: var(--primary-color);
}

/* ==================== 收益統計 ==================== */
.earnings-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.earnings-item {
  padding: var(--spacing-md);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
}

.earnings-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.earnings-value {
  font-size: 24px;
  font-weight: bold;
  color: var(--primary-color);
}

/* ==================== 通知項目 ==================== */
.notification-item {
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--border-color);
}

.notification-item:last-child {
  border-bottom: none;
}

/* ==================== 黑名單列表 ==================== */
.blocked-users-list {
  min-height: 100px;
  padding: var(--spacing-md);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  text-align: center;
}

/* ==================== 設置操作按鈕 ==================== */
.settings-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

/* 響應式設計 */
@media (max-width: 768px) {
  /* settings-container 改為縱向堆疊 */
  .settings-container {
    flex-direction: column;
    overflow: visible;
  }

  /* 左側設定導航改為水平捲動 */
  .settings-sidebar,
  .settings-nav {
    width: 100%;
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm);
    display: flex;
    flex-shrink: 0;
    -webkit-overflow-scrolling: touch;
  }

  /* 設定導航按鈕 */
  .settings-nav-btn {
    flex-shrink: 0;
    width: auto;
    min-height: 52px;
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: 0;
    margin-right: 4px;
  }

  /* 在手機版顯示文字標籤（縮短） */
  .settings-nav-btn span {
    display: block;
    font-size: 12px;
  }

  .settings-content {
    padding: var(--spacing-md);
    height: auto;
    overflow-y: visible;
  }

  .settings-layout {
    height: auto;
    min-height: 100vh;
    overflow: auto;
  }

  .placeholder-content {
    min-height: 300px;
    padding: var(--spacing-lg);
  }

  .placeholder-icon {
    font-size: 60px;
  }

  .avatar-upload-section {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .earnings-grid {
    grid-template-columns: 1fr;
  }

  .settings-actions {
    flex-direction: column-reverse;
  }

  .settings-actions button {
    width: 100%;
    min-height: 52px;
  }

  /* 設定項目觸控目標 */
  .linked-account-item {
    min-height: 60px;
    padding: 14px 16px;
  }

  .session-item {
    min-height: 60px;
  }

  /* 設定表單輸入框高度 */
  .form-input,
  .form-select {
    min-height: 48px;
    font-size: 16px !important;
  }
}

/* ==================== 提示框樣式 ==================== */

.notice-box {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid var(--primary-color);
  border-left: 4px solid var(--primary-color);
  border-radius: 8px;
  margin-bottom: 24px;
}

.notice-box > i {
  font-size: 24px;
  color: var(--primary-color);
  flex-shrink: 0;
  margin-top: 2px;
}

.notice-box strong {
  display: block;
  color: var(--text-primary);
  font-size: 16px;
  margin-bottom: 8px;
}

.notice-box p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* ==================== 輸入框前綴樣式 ==================== */

.input-with-prefix {
  display: flex;
  align-items: center;
  gap: 0;
}

.input-prefix {
  padding: 10px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-right: none;
  border-radius: 6px 0 0 6px;
  color: var(--text-secondary);
  font-weight: 600;
  flex-shrink: 0;
}

.input-with-prefix .form-input {
  border-radius: 0 6px 6px 0;
  border-left: none;
  flex: 1;
  padding-left: 12px;
}

/* ==================== 訂閱設置分頁標籤 ==================== */

.subscription-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 24px;
}

.subscription-tab-btn {
  padding: 12px 24px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-bottom: -2px;
}

.subscription-tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.subscription-tab-btn.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

.subscription-tab-btn i {
  margin-right: 8px;
}

.subscription-tab-content {
  display: none;
}

.subscription-tab-content.active {
  display: block;
}

/* ==================== 已關聯的帳號 ==================== */

.linked-account-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1px solid var(--border-color);
}

.linked-account-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.linked-account-icon {
  font-size: 24px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  border-radius: var(--radius-md);
}

.linked-account-details {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.linked-account-type {
  font-weight: 600;
  color: var(--text-primary);
}

.linked-account-id {
  font-size: 13px;
  color: var(--text-secondary);
  word-break: break-all;  /* 允许长地址换行 */
}

/* 可點擊的帳號 ID（如錢包地址） */
.linked-account-id.clickable {
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 4px 8px;
  margin: -4px -8px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;  /* 允许换行 */
}

.linked-account-id.clickable:hover {
  background: var(--bg-primary);
  color: var(--primary-color);
}

.linked-account-id.clickable:active {
  transform: scale(0.98);
}

/* 钱包地址特殊样式 */
.linked-account-id.wallet-address {
  font-family: 'Courier New', Consolas, Monaco, monospace;
  font-size: 13px;
  letter-spacing: 0.3px;
  max-width: 100%;
  overflow-wrap: break-word;
}

.linked-account-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-badge {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
}

.status-badge.connected {
  background: rgba(0, 186, 124, 0.1);
  color: #00BA7C;
}

.status-badge.primary {
  background: rgba(29, 155, 240, 0.1);
  color: var(--primary-color);
}

.linked-account-actions {
  display: flex;
  gap: 8px;
}

.btn-link-account {
  padding: 8px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-link-account:hover {
  background: var(--bg-hover);
}

.btn-link-account.danger {
  color: var(--danger);
  border-color: var(--danger);
}

.btn-link-account.danger:hover {
  background: rgba(244, 33, 46, 0.1);
}

.empty-linked-accounts {
  text-align: center;
  padding: 32px;
  color: var(--text-secondary);
}

.empty-linked-accounts i {
  font-size: 48px;
  margin-bottom: 12px;
  opacity: 0.5;
}

/* ==================== 活躍會話 ==================== */

.session-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.session-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.session-icon {
  font-size: 32px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  border-radius: var(--radius-md);
}

.session-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.session-device {
  font-weight: 600;
  color: var(--text-primary);
}

.session-location {
  font-size: 13px;
  color: var(--text-secondary);
}

.session-time {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* ==================== 推薦人卡片樣式 ==================== */

.referrer-loading,
.referrer-empty,
.referrer-cancelled,
.referrer-error {
  padding: 20px;
  text-align: center;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
}

.referrer-info-card {
  padding: 20px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.referrer-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.referrer-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-color);
}

.referrer-details {
  flex: 1;
}

.referrer-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.referrer-code {
  font-size: 14px;
  color: var(--text-secondary);
}

.code-badge {
  display: inline-block;
  padding: 2px 10px;
  background: var(--accent-color);
  color: white;
  border-radius: 4px;
  font-weight: 600;
  letter-spacing: 1px;
  font-size: 13px;
  margin-left: 4px;
}

.referrer-modify-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--text-secondary);
}

.referrer-modify-hint i {
  color: var(--accent-color);
}

.referrer-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.referrer-actions button {
  flex: 1;
  min-width: 140px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

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

.referrer-actions .btn-secondary:hover {
  background: var(--bg-primary);
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.referrer-actions .btn-danger-outline {
  background: transparent;
  color: var(--error-color);
  border: 1px solid var(--error-color);
}

.referrer-actions .btn-danger-outline:hover {
  background: var(--error-color);
  color: white;
}

/* ==================== 用户名验证样式 ==================== */

/* 输入框容器 */
.input-with-validation {
  position: relative;
  display: flex;
  align-items: center;
}

/* ==================== @ 用户名输入框（Flex 布局方案）==================== */

/* 用户名输入框容器 - Flex 布局 */
.username-input-wrapper {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--border-color, #e1e8ed);
  border-radius: 8px;
  background: var(--bg-primary, #ffffff);
  transition: all 0.2s ease;
  position: relative;
}

/* 聚焦状态 */
.username-input-wrapper:focus-within {
  border-color: var(--primary-color, #1d9bf0);
  box-shadow: 0 0 0 3px rgba(29, 155, 240, 0.1);
}

/* @ 符号 - 真正占据空间 */
.username-input-wrapper .at-symbol {
  font-size: 15px;
  font-weight: 400;
  color: var(--text-primary, #1a1a1a);
  user-select: none;
  flex-shrink: 0;
  margin-right: 2px;  /* @ 和输入内容的间距，2px 刚好 */
}

/* 用户名输入框 - 无边框，占满剩余空间 */
.username-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 15px;
  font-family: inherit;
  color: var(--text-primary, #1a1a1a);
  background: transparent;
  padding: 0;
  min-width: 0;  /* 允许输入框缩小 */
}

/* 输入框 placeholder */
.username-input::placeholder {
  color: var(--text-secondary, #8899a6);
}

/* 验证图标定位（在 Flex 容器内） */
.username-input-wrapper .validation-icon {
  position: relative;
  margin-left: 8px;
  flex-shrink: 0;
}

/* 验证图标 */
.validation-icon {
  position: absolute;
  right: 12px;
  font-size: 20px;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.validation-icon.loading::after {
  content: '⏳';
  animation: pulse 1s infinite;
}

.validation-icon.valid::after {
  content: '✓';
  color: #28a745;
  font-weight: bold;
  font-size: 22px;
}

.validation-icon.invalid::after {
  content: '!';
  color: #dc3545;
  font-weight: bold;
  font-size: 20px;
  font-family: 'Arial Black', Arial, sans-serif;
}

/* 输入框状态 */
.form-input.is-valid {
  border-color: #28a745;
  padding-right: 45px;
  box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

.form-input.is-invalid {
  border-color: #dc3545;
  padding-right: 45px;
  box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

/* 错误提示 */
.text-danger {
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 4px;
  display: block;
}

/* 提示文本 */
.text-muted {
  color: #6c757d;
  font-size: 0.875rem;
  margin-top: 4px;
}

/* 加载动画 */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}