/**
 * 织星屿 · 图床 (Star Weaving Island · Image Hub)
 * 全局统一现代美学样式系统 (Pink Glassmorphism & Dark Mode)
 */

:root {
  --font-sans: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  
  /* 基础粉系品牌色调 */
  --primary: #FB7299;
  --primary-hover: #fc8cae;
  --primary-active: #e65c85;
  --primary-light: rgba(251, 114, 153, 0.12);
  --primary-glow: rgba(251, 114, 153, 0.35);
  
  /* 亮色模式浅粉与毛玻璃 */
  --bg-gradient: radial-gradient(circle at 10% 20%, #FFF0F5 0%, #FFF5F7 40%, #F5F7FF 100%);
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-bg-hover: rgba(255, 255, 255, 0.88);
  --glass-card: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(255, 255, 255, 0.7);
  --glass-border-pink: rgba(251, 114, 153, 0.22);
  --glass-shadow: 0 12px 36px -6px rgba(251, 114, 153, 0.14), 0 4px 12px rgba(0, 0, 0, 0.04);
  
  --text-main: #2D3748;
  --text-muted: #718096;
  --text-sub: #A0AEC0;
  
  --card-radius: 20px;
  --btn-radius: 12px;
  --pill-radius: 9999px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  
  --transition-smooth: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 深色模式 / 暗夜星空主题 */
html.dark {
  --bg-gradient: radial-gradient(circle at 15% 15%, #181424 0%, #0F0E17 50%, #0A0A10 100%);
  --glass-bg: rgba(24, 20, 36, 0.78);
  --glass-bg-hover: rgba(32, 28, 48, 0.88);
  --glass-card: rgba(22, 18, 32, 0.72);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-border-pink: rgba(251, 114, 153, 0.28);
  --glass-shadow: 0 14px 40px -6px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(251, 114, 153, 0.15);
  
  --text-main: #F7FAFC;
  --text-muted: #A0AEC0;
  --text-sub: #718096;
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

/* 全局毛玻璃顶栏 (Navbar) */
.app-navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.8rem;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
  transition: var(--transition-smooth);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.nav-logo {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  transition: var(--transition-bounce);
  filter: drop-shadow(0 2px 8px var(--primary-glow));
}

.nav-brand:hover .nav-logo {
  transform: rotate(-8deg) scale(1.08);
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--glass-border-pink);
  border-radius: var(--pill-radius);
  text-transform: uppercase;
}

.channel-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 4px 12px;
  background: var(--glass-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--pill-radius);
  color: var(--text-muted);
  margin-left: 6px;
}

.channel-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 8px #10B981;
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* 导航栏操作区 */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--text-main);
  background: var(--glass-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--btn-radius);
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-smooth);
  outline: none;
  user-select: none;
}

.nav-btn:hover {
  background: var(--glass-bg-hover);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px var(--primary-glow);
}

.nav-btn.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.nav-btn.primary:hover {
  background: var(--primary-hover);
  color: #fff;
  box-shadow: 0 6px 18px var(--primary-glow);
}

.nav-icon-btn {
  width: 38px;
  height: 38px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--glass-card);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.nav-icon-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: scale(1.08);
}

.nav-icon-btn i {
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.3s ease;
  pointer-events: none;
}

.nav-icon-btn:active i {
  transform: rotate(180deg) scale(0.85);
}

/* 主容器 */
.app-container {
  max-width: 960px;
  width: 100%;
  margin: 2.5rem auto;
  padding: 0 1.5rem;
  flex: 1;
}

/* 核心上传卡片 (Hero Card) */
.hero-upload-card {
  background: var(--glass-card);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--card-radius);
  box-shadow: var(--glass-shadow);
  padding: 2.5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.hero-header {
  margin-bottom: 2rem;
}

.hero-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--primary) 0%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* 拖拽上传投放区域 (Dropzone) */
.upload-dropzone {
  border: 2px dashed var(--glass-border-pink);
  background: var(--glass-bg);
  border-radius: 16px;
  padding: 3.5rem 2rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  outline: none;
}

.upload-dropzone:hover,
.upload-dropzone.dragover {
  border-color: var(--primary);
  background: var(--primary-light);
  transform: scale(1.01);
  box-shadow: 0 8px 30px var(--primary-glow);
}

.dropzone-icon {
  font-size: 3.2rem;
  color: var(--primary);
  margin-bottom: 1.2rem;
  transition: var(--transition-bounce);
  filter: drop-shadow(0 4px 12px var(--primary-glow));
}

.upload-dropzone:hover .dropzone-icon,
.upload-dropzone.dragover .dropzone-icon {
  transform: translateY(-6px) scale(1.1);
}

.dropzone-prompt {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.dropzone-tips {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.dropzone-btns {
  display: inline-flex;
  gap: 12px;
}

/* 上传队列与任务列表 */
.upload-queue {
  margin-top: 2rem;
  text-align: left;
}

.queue-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-weight: 700;
  font-size: 1rem;
}

.queue-clear-btn {
  font-size: 0.8rem;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
  transition: color 0.2s;
}

.queue-clear-btn:hover {
  color: var(--primary);
}

.queue-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.queue-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
  transition: var(--transition-smooth);
}

.queue-item:hover {
  transform: translateX(4px);
  border-color: var(--primary);
}

.queue-thumb {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  object-fit: cover;
  background: #eee;
  flex-shrink: 0;
}

.queue-info {
  flex: 1;
  min-width: 0;
}

.queue-filename {
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}

.queue-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.queue-progress-bar {
  width: 100%;
  height: 5px;
  background: rgba(0, 0, 0, 0.06);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 6px;
}

html.dark .queue-progress-bar {
  background: rgba(255, 255, 255, 0.1);
}

.queue-progress-inner {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary) 0%, #a855f7 100%);
  border-radius: 10px;
  transition: width 0.2s ease;
}

.queue-status {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  flex-shrink: 0;
}

.status-waiting { color: #f59e0b; background: rgba(245, 158, 11, 0.1); }
.status-uploading { color: #3b82f6; background: rgba(59, 130, 246, 0.1); }
.status-success { color: #10b981; background: rgba(16, 185, 129, 0.1); }
.status-error { color: #ef4444; background: rgba(239, 68, 68, 0.1); }

.queue-copy-btn {
  padding: 5px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  background: var(--primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.queue-copy-btn:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 10px var(--primary-glow);
}

/* 直链复制悬浮岛 (Copy Island) */
.copy-island-modal {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  max-width: 440px;
  width: calc(100% - 48px);
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border-pink);
  border-radius: 16px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15), 0 0 0 1px var(--primary-glow);
  padding: 1.2rem;
  animation: slide-up 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slide-up {
  from { opacity: 0; transform: translateY(30px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.island-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.island-title {
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
}

.island-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
}

.island-formats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.format-btn {
  padding: 8px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  text-align: left;
  border: 1px solid var(--glass-border);
  background: var(--glass-card);
  color: var(--text-main);
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.format-btn:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}

/* 全局弹窗 Toast */
.app-toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-30px);
  opacity: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--primary);
  color: var(--text-main);
  padding: 10px 20px;
  border-radius: var(--pill-radius);
  box-shadow: 0 10px 30px var(--primary-glow);
  font-size: 0.9rem;
  font-weight: 600;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 8px;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.app-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* 设置抽屉 / 模态框 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  max-width: 480px;
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--card-radius);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
  padding: 2rem;
  transform: scale(0.92);
  transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.open .modal-card {
  transform: scale(1);
}

.form-group {
  margin-bottom: 1.25rem;
  text-align: left;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.form-input, .form-select {
  width: 100%;
  padding: 10px 14px;
  font-size: 0.9rem;
  font-family: inherit;
  background: var(--glass-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--btn-radius);
  color: var(--text-main);
  outline: none;
  transition: var(--transition-smooth);
}

.form-input:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

/* ==========================================================================
   管理后台页面专属样式 (Admin Dashboard)
   ========================================================================== */
.admin-stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-pill {
  background: var(--glass-card);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-val {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
}

.stat-key {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* 后台顶部 Tab 切换 */
.admin-tab-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 10px;
}

.admin-tab-btn {
  padding: 8px 18px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--glass-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--btn-radius);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.admin-tab-btn:hover {
  color: var(--primary);
  background: var(--primary-light);
  border-color: var(--primary);
}

.admin-tab-btn.active {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 4px 14px var(--primary-glow);
}

/* 用户与授权管理面板容器 */
.user-mgmt-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.token-table-card {
  background: var(--glass-card);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 1.5rem;
}

.token-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 1rem;
}

.token-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 12px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  transition: var(--transition-smooth);
}

.token-item:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}

.token-info-main {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.token-owner-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--glass-border-pink);
}

.token-value-box {
  font-family: monospace;
  font-size: 0.8rem;
  background: rgba(0,0,0,0.06);
  padding: 4px 8px;
  border-radius: 6px;
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

html.dark .token-value-box {
  background: rgba(255,255,255,0.08);
}

.admin-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 1.5rem;
  padding: 1rem 1.2rem;
  background: var(--glass-card);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
}

.toolbar-left, .toolbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.admin-search-input {
  min-width: 260px;
  padding: 8px 12px;
  border-radius: var(--btn-radius);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.875rem;
}

/* 文件夹与路径面包屑导航 (Breadcrumbs) */
.folder-navigation-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 1.25rem;
  padding: 0.8rem 1.2rem;
  background: var(--glass-card);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border-pink);
  border-radius: var(--card-radius, 20px);
  box-shadow: 0 8px 24px -4px rgba(251, 114, 153, 0.06), 0 2px 8px rgba(0, 0, 0, 0.02);
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  font-weight: 600;
}

.breadcrumb-item {
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 8px;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.breadcrumb-item:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.breadcrumb-item.active {
  color: var(--primary);
  pointer-events: none;
  font-weight: 700;
}

.breadcrumb-sep {
  color: var(--text-sub);
  font-size: 0.8rem;
}

/* 文件夹卡片网格 */
.folders-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.folder-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--glass-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border-pink);
  border-radius: 16px;
  cursor: pointer;
  transition: var(--transition-smooth);
  user-select: none;
}

.folder-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: 0 6px 18px var(--primary-glow);
}

.folder-icon {
  font-size: 1.8rem;
  color: #F59E0B;
  filter: drop-shadow(0 2px 6px rgba(245, 158, 11, 0.3));
  flex-shrink: 0;
}

.folder-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 图片瀑布流 / 网格卡片 */
.images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}

.image-card {
  position: relative;
  background: var(--glass-card);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.image-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.image-card.selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary);
}

.img-preview-box {
  width: 100%;
  height: 180px;
  background: #f0f0f5;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

html.dark .img-preview-box {
  background: #14121d;
}

.img-preview-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.image-card:hover .img-preview-box img {
  transform: scale(1.06);
}

.img-checkbox {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--primary);
  z-index: 10;
}

.img-channel-tag {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  backdrop-filter: blur(4px);
}

.img-card-info {
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.img-card-name {
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.img-card-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

.img-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 8px;
  margin-top: 4px;
  border-top: 1px dashed var(--glass-border);
}

.img-action-btn {
  background: none;
  border: none;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  transition: color 0.2s;
}

.img-action-btn:hover {
  color: var(--primary);
}

.img-action-btn.delete:hover {
  color: #ef4444;
}

/* 标签展示与筛选徽章 */
.img-tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 6px 0 2px;
}

.img-tag-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.68rem;
  padding: 2px 7px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
  user-select: none;
}

.img-tag-badge:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
}

.active-tag-filter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--primary-light);
  border: 1px solid var(--primary);
  color: var(--primary);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.active-tag-filter:hover {
  background: #fee2e2;
  border-color: #ef4444;
  color: #ef4444;
}

/* 页脚 */
.app-footer {
  text-align: center;
  padding: 2.5rem 1rem 2rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: auto;
}

.app-footer a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.app-footer a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   响应式移动端适配 (Responsive & Mobile Adaptation)
   ========================================================================== */

/* 平板设备与窄屏适配 (Max Width: 768px) */
@media (max-width: 768px) {
  .app-navbar {
    padding: 0.65rem 0.85rem;
  }
  .app-container {
    margin: 1rem auto;
    padding: 0 0.75rem;
  }
  .hero-upload-card {
    padding: 1.5rem 1rem;
    border-radius: 18px;
  }
  .hero-title {
    font-size: 1.5rem;
  }
  .upload-dropzone {
    padding: 2rem 1rem;
    border-radius: 16px;
  }
  .admin-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 0.85rem;
  }
  .toolbar-left, .toolbar-right {
    width: 100%;
  }
  .admin-search-input {
    flex: 1;
    min-width: 0;
    width: 100%;
  }
  .toolbar-right {
    justify-content: space-between;
  }
}

/* 手机设备深度适配 (Max Width: 640px) */
@media (max-width: 640px) {
  /* 导航栏简化，防止换行溢出 */
  .app-navbar {
    padding: 0.55rem 0.75rem;
    gap: 8px;
  }
  .brand-text {
    font-size: 1.1rem;
    gap: 4px;
  }
  .brand-badge {
    font-size: 0.68rem;
    padding: 1px 6px;
  }
  .nav-logo {
    width: 30px;
    height: 30px;
  }
  .nav-actions {
    gap: 6px;
  }
  /* 在手机端隐藏导航按钮的冗长文字，只保留优雅的图标与微内边距 */
  .nav-btn span {
    display: none;
  }
  .nav-btn {
    padding: 6px 9px;
    font-size: 0.82rem;
    border-radius: 10px;
  }
  .nav-icon-btn {
    width: 32px;
    height: 32px;
    font-size: 0.85rem;
  }
  .channel-pill {
    padding: 3px 8px;
    font-size: 0.72rem;
  }
  .nav-brand .channel-pill {
    display: none;
  }
  #copyFormatSelect {
    padding: 4px 6px;
    font-size: 0.78rem;
    max-width: 95px;
  }

  /* 登录鉴权卡片移动端优化 */
  #adminLoginSection {
    margin: 1.5rem auto !important;
    width: 100%;
    padding: 0;
  }
  #adminLoginSection .hero-upload-card {
    padding: 1.75rem 1.25rem;
  }

  /* 统计指标卡片：三列自适应，紧凑优雅，数值适中不折行 */
  .admin-stats-bar {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.45rem;
    margin-bottom: 1rem;
  }
  .stat-pill {
    padding: 0.65rem 0.35rem;
    text-align: center;
    align-items: center;
    border-radius: 12px;
    gap: 2px;
  }
  .stat-val {
    font-size: 1.15rem;
  }
  .stat-key {
    font-size: 0.65rem;
  }

  /* Tab 切换栏：均分宽度 */
  .admin-tab-bar {
    gap: 6px;
    margin-bottom: 1rem;
  }
  .admin-tab-btn {
    flex: 1;
    text-align: center;
    justify-content: center;
    padding: 8px 6px;
    font-size: 0.85rem;
  }

  /* 工具栏批量操作按钮平分宽度 */
  .toolbar-right .nav-btn {
    flex: 1;
    font-size: 0.75rem;
    padding: 6px 6px;
    justify-content: center;
    text-align: center;
  }

  /* 路径与面包屑导航支持横向滑动 */
  .folder-navigation-bar {
    padding: 0.5rem 0.75rem;
    gap: 6px;
  }
  .breadcrumbs {
    font-size: 0.78rem;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .breadcrumbs::-webkit-scrollbar {
    display: none;
  }
  .breadcrumb-item {
    padding: 3px 6px;
  }

  /* 文件夹网格 */
  .folders-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.55rem;
    margin-bottom: 1rem;
  }
  .folder-card {
    padding: 8px 10px;
    gap: 8px;
    border-radius: 12px;
  }
  .folder-icon {
    font-size: 1.35rem;
  }
  .folder-name {
    font-size: 0.78rem;
  }

  /* 图片卡片双列流式排列 */
  .images-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.55rem;
  }
  .image-card {
    border-radius: 13px;
  }
  .img-preview-box {
    height: 125px;
  }
  .img-card-info {
    padding: 6px 8px;
    gap: 2px;
  }
  .img-card-name {
    font-size: 0.75rem;
  }
  .img-card-sub {
    font-size: 0.65rem;
  }
  .img-card-actions {
    padding-top: 5px;
    margin-top: 2px;
    display: flex;
    justify-content: space-between;
  }
  .img-action-btn {
    padding: 4px 2px;
    font-size: 0.8rem;
  }
  .img-tags-container {
    gap: 3px;
    margin: 3px 0 1px;
  }
  .img-tag-badge {
    font-size: 0.6rem;
    padding: 1px 5px;
    border-radius: 4px;
  }

  /* 安全与凭据设置卡片响应式 */
  .token-table-card {
    padding: 1rem;
    border-radius: 14px;
  }
  #adminPwdChangeForm {
    flex-direction: column;
    align-items: stretch;
  }
  #adminNewUserInput,
  #adminNewPwdInput,
  #saveAdminPwdBtn {
    width: 100% !important;
    min-width: 100% !important;
  }
  .token-item {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 10px 12px;
  }
  .token-info-main {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .token-value-box {
    max-width: 100%;
    width: 100%;
    overflow-x: auto;
    font-size: 0.75rem;
  }

  /* 模态框手机端全屏友好 */
  .modal-overlay {
    padding: 0.75rem;
  }
  .modal-card {
    padding: 1.25rem 1rem;
    max-height: 92vh;
    border-radius: 18px;
  }
}

/* 超窄屏手机特殊微调 (Max Width: 380px) */
@media (max-width: 380px) {
  .brand-text span[data-i18n="brandName"] {
    font-size: 1rem;
  }
  .stat-pill {
    padding: 0.5rem 0.2rem;
  }
  .stat-val {
    font-size: 1rem;
  }
  .stat-key {
    font-size: 0.6rem;
  }
  .img-preview-box {
    height: 110px;
  }
}

/* ============================================================
   功能扩展样式: 状态徽标、自动补全、目录树与访客 IP 风控面板
   ============================================================ */

/* 1. 单图拉黑与白名单状态角标 */
.img-status-tag {
  position: absolute;
  bottom: 8px;
  left: 8px;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  z-index: 5;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}
.img-status-tag.status-blocked {
  background: rgba(239, 68, 68, 0.88);
  color: #ffffff;
}
.img-status-tag.status-whitelisted {
  background: rgba(16, 185, 129, 0.88);
  color: #ffffff;
}
.img-action-btn.block:hover {
  color: #ef4444;
}
.img-action-btn.white:hover {
  color: #10b981;
}

/* 2. 标签自动补全下拉建议框 */
.tag-autocomplete-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--glass-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border-pink);
  border-radius: 12px;
  box-shadow: var(--glass-shadow);
  max-height: 180px;
  overflow-y: auto;
  z-index: 1000;
  padding: 6px;
}
.tag-suggestion-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
}
.tag-suggestion-item:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: translateX(4px);
}
.tag-suggestion-item i {
  color: var(--primary);
  font-size: 0.75rem;
}

/* 3. 交互式目录树选择项 */
.dir-tree-box {
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 8px;
}
html.dark .dir-tree-box {
  background: rgba(255, 255, 255, 0.02);
}
.dir-tree-item {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition-smooth);
  user-select: none;
}
.dir-tree-item:hover {
  background: var(--primary-light);
  color: var(--primary);
}
.dir-tree-item.active {
  background: var(--primary);
  color: #ffffff !important;
  font-weight: 600;
}
.dir-tree-item.active i {
  color: #ffffff !important;
}

/* 4. 访客 IP 风控统计表格与状态标签 */
.ip-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.ip-table th {
  padding: 12px 14px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.02);
}
html.dark .ip-table th {
  background: rgba(255, 255, 255, 0.03);
}
.ip-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--glass-border);
  vertical-align: middle;
  color: var(--text-main);
}
.ip-table tr:hover td {
  background: var(--primary-light);
}
.badge-datacenter {
  display: inline-flex;
  align-items: center;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(245, 158, 11, 0.15);
  color: #d97706;
  border: 1px solid rgba(245, 158, 11, 0.3);
  margin-left: 6px;
  vertical-align: middle;
}
.badge-status-blocked {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 9999px;
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.25);
}
.badge-status-normal {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 9999px;
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.25);
}
.danger-pulse:hover {
  background: rgba(239, 68, 68, 0.12) !important;
  border-color: rgba(239, 68, 68, 0.4) !important;
  color: #dc2626 !important;
}

/* 5. 现代化双栏文件管理架构 (左侧目录树 + 右侧内容视图) */
.file-manager-layout {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  width: 100%;
  margin-top: 1rem;
}

.file-tree-sidebar {
  width: 250px;
  min-width: 220px;
  flex-shrink: 0;
  background: var(--glass-card);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-border-pink);
  border-radius: var(--card-radius, 20px);
  padding: 14px 12px;
  box-shadow: 0 10px 30px -5px rgba(251, 114, 153, 0.08), 0 4px 16px rgba(0, 0, 0, 0.02);
  position: sticky;
  top: 80px;
  max-height: calc(100vh - 100px);
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

html.dark .file-tree-sidebar {
  background: var(--glass-card);
  border-color: rgba(251, 114, 153, 0.22);
  box-shadow: 0 14px 35px -5px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(251, 114, 153, 0.12);
}

.file-tree-sidebar.collapsed {
  display: none !important;
}

.file-content-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.tree-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 8px 12px 8px;
  border-bottom: 1px solid rgba(251, 114, 153, 0.12);
  margin-bottom: 10px;
}

.tree-sidebar-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.01em;
}

.tree-refresh-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 5px 8px;
  border-radius: 10px;
  font-size: 0.82rem;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.tree-refresh-btn:hover {
  color: var(--primary);
  background: var(--primary-light);
  transform: rotate(45deg);
}

.tree-sidebar-body {
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1;
  padding: 2px 4px 6px 2px;
  scrollbar-width: thin;
  scrollbar-color: rgba(251, 114, 153, 0.22) transparent;
}

.tree-sidebar-body::-webkit-scrollbar {
  width: 5px;
}

.tree-sidebar-body::-webkit-scrollbar-track {
  background: transparent;
}

.tree-sidebar-body::-webkit-scrollbar-thumb {
  background: rgba(251, 114, 153, 0.2);
  border-radius: 10px;
}

.tree-sidebar-body::-webkit-scrollbar-thumb:hover {
  background: rgba(251, 114, 153, 0.45);
}

/* 目录树节点行 - 柔和微圆角、渐变与动效 */
.sidebar-tree-node {
  display: flex;
  align-items: center;
  padding: 8px 10px;
  border-radius: 12px;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  gap: 7px;
  white-space: nowrap;
  margin-bottom: 4px;
}

.sidebar-tree-node:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: translateX(3px);
}

.sidebar-tree-node.active {
  background: linear-gradient(135deg, var(--primary) 0%, #fa5c88 100%);
  color: #ffffff !important;
  font-weight: 600;
  box-shadow: 0 4px 14px var(--primary-glow);
  transform: translateX(3px);
}

.sidebar-tree-node.active i {
  color: #ffffff !important;
}

.sidebar-tree-node.active .sidebar-tree-arrow {
  color: rgba(255, 255, 255, 0.88);
}

.sidebar-tree-arrow {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  color: var(--text-muted);
  transition: transform 0.22s ease, background-color 0.2s ease, color 0.2s ease;
  flex-shrink: 0;
  border-radius: 6px;
}

.sidebar-tree-arrow:hover {
  background: rgba(251, 114, 153, 0.16);
  color: var(--primary);
}

html.dark .sidebar-tree-arrow:hover {
  background: rgba(251, 114, 153, 0.26);
  color: var(--primary);
}

.sidebar-tree-arrow.expanded {
  transform: rotate(90deg);
}

.sidebar-tree-arrow.empty {
  visibility: hidden;
  pointer-events: none;
}

.sidebar-tree-icon {
  font-size: 0.88rem;
  color: #F59E0B;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.sidebar-tree-node:hover .sidebar-tree-icon {
  transform: scale(1.08);
}

.sidebar-tree-label {
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

/* 响应式断点 */
@media (max-width: 920px) {
  .file-manager-layout {
    flex-direction: column;
  }
  .file-tree-sidebar {
    width: 100%;
    position: static;
    max-height: 280px;
    margin-bottom: 8px;
    border-radius: 16px;
  }
  .file-tree-sidebar.collapsed {
    display: none !important;
  }
}