/* Fang Photography Admin - 玻璃态设计 */

/* CSS 变量 */
:root {
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --primary-color: #667eea;
  --primary-hover: #5a6fd6;
  --primary-light: rgba(102, 126, 234, 0.15);
  
  --success-color: #22c55e;
  --success-hover: #16a34a;
  --warning-color: #f59e0b;
  --warning-hover: #d97706;
  --danger-color: #ef4444;
  --danger-hover: #dc2626;
  
  --bg-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  --bg-color: #0f172a;
  --card-bg: rgba(30, 41, 59, 0.7);
  --card-bg-solid: #1e293b;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  
  --sidebar-bg: rgba(15, 23, 42, 0.95);
  --sidebar-glass: rgba(30, 41, 59, 0.8);
  
  --text-color: #f1f5f9;
  --text-muted: #94a3b8;
  --border-color: rgba(255, 255, 255, 0.1);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);
  
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-color);
  line-height: 1.6;
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

/* ==================== 登录页面 ==================== */
#login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-gradient);
  position: relative;
  overflow: hidden;
}

/* 动态背景光晕 */
#login-page::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(102, 126, 234, 0.3) 0%, transparent 70%);
  top: -200px;
  right: -200px;
  animation: float 8s ease-in-out infinite;
}

#login-page::after {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(118, 75, 162, 0.2) 0%, transparent 70%);
  bottom: -150px;
  left: -150px;
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -30px) scale(1.1); }
}

.login-container {
  width: 100%;
  max-width: 420px;
  padding: 20px;
  position: relative;
  z-index: 1;
}

.login-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  text-align: center;
  animation: cardEntrance 0.6s ease-out;
}

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

.login-logo img {
  width: 88px;
  height: 88px;
  margin-bottom: 24px;
  filter: drop-shadow(0 4px 12px rgba(102, 126, 234, 0.3));
  animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.login-card h1 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-subtitle {
  color: var(--text-muted);
  margin-bottom: 36px;
  font-size: 15px;
}

.login-form .form-group {
  margin-bottom: 24px;
}

.login-form input {
  width: 100%;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  font-size: 16px;
  color: var(--text-color);
  transition: all var(--transition-normal);
}

.login-form input::placeholder {
  color: var(--text-muted);
}

.login-form input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(102, 126, 234, 0.1);
  box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15), var(--shadow-sm);
}

.error-message {
  color: var(--danger-color);
  font-size: 14px;
  margin-top: 16px;
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

/* ==================== 按钮样式 ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn svg {
  width: 18px;
  height: 18px;
}

/* 波纹效果 */
.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::after {
  width: 200px;
  height: 200px;
}

.btn-primary {
  background: var(--primary-gradient);
  color: white;
  box-shadow: var(--shadow-sm), 0 4px 16px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow), 0 8px 24px rgba(102, 126, 234, 0.5);
}

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

.btn-success {
  background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  color: white;
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.4);
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(34, 197, 94, 0.5);
}

.btn-warning {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: white;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
}

.btn-warning:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.5);
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: white;
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.4);
}

.btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(239, 68, 68, 0.5);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-color);
}

.btn-outline:hover {
  background: var(--glass-bg);
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.btn-text {
  background: transparent;
  color: var(--text-muted);
  padding: 8px 12px;
}

.btn-text:hover {
  color: var(--text-color);
  background: var(--glass-bg);
}

.btn-block {
  width: 100%;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius);
}

/* ==================== 主应用布局 ==================== */
#main-app {
  display: flex;
  min-height: 100vh;
}

/* ==================== 侧边栏 ==================== */
.sidebar {
  width: 280px;
  background: var(--sidebar-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
}

.sidebar-header {
  padding: 28px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--glass-border);
}

.sidebar-logo {
  width: 44px;
  height: 44px;
  filter: drop-shadow(0 2px 8px rgba(102, 126, 234, 0.3));
}

.sidebar-header h2 {
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-nav {
  flex: 1;
  padding: 20px 16px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: var(--radius);
  margin-bottom: 6px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 3px;
  background: var(--primary-gradient);
  border-radius: 0 3px 3px 0;
  transform: scaleY(0);
  transition: transform var(--transition-normal);
}

.nav-item:hover {
  background: var(--glass-bg);
  color: var(--text-color);
  transform: translateX(4px);
}

.nav-item.active {
  background: var(--primary-light);
  color: var(--primary-color);
}

.nav-item.active::before {
  transform: scaleY(1);
}

.nav-item svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 20px;
  border-top: 1px solid var(--glass-border);
}

.sidebar-footer .btn {
  width: 100%;
  justify-content: flex-start;
  color: var(--text-muted);
}

.sidebar-footer .btn:hover {
  color: var(--danger-color);
  background: rgba(239, 68, 68, 0.1);
}

/* ==================== 主内容区域 ==================== */
.main-content {
  flex: 1;
  margin-left: 280px;
  padding: 40px;
  min-height: 100vh;
}

.content-page {
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==================== 页面头部 ==================== */
.page-header {
  margin-bottom: 36px;
}

.page-header h1 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-description {
  color: var(--text-muted);
  font-size: 16px;
}

/* ==================== 统计卡片 ==================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 36px;
}

.stat-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  align-items: center;
  gap: 24px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.stat-card:hover::before {
  transform: scaleX(1);
}

.stat-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.stat-icon::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: calc(var(--radius) + 4px);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.stat-card:hover .stat-icon::after {
  opacity: 1;
}

.stat-icon svg {
  width: 32px;
  height: 32px;
  position: relative;
  z-index: 1;
}

.stat-icon.photos {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(102, 126, 234, 0.1) 100%);
  color: #667eea;
}

.stat-icon.photos::after {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.3) 0%, rgba(102, 126, 234, 0.15) 100%);
}

.stat-icon.featured {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(245, 158, 11, 0.1) 100%);
  color: #f59e0b;
}

.stat-icon.featured::after {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.3) 0%, rgba(245, 158, 11, 0.15) 100%);
}

.stat-icon.folders {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.2) 0%, rgba(34, 197, 94, 0.1) 100%);
  color: #22c55e;
}

.stat-icon.folders::after {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.3) 0%, rgba(34, 197, 94, 0.15) 100%);
}

.stat-info h3 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 6px;
  background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-info p {
  color: var(--text-muted);
  font-size: 14px;
}

/* ==================== 快速操作 ==================== */
.quick-actions {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.quick-actions h2 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
}

.action-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==================== 工具栏 ==================== */
.toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.toolbar-right {
  margin-left: auto;
}

.search-input {
  padding: 12px 18px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  font-size: 14px;
  width: 280px;
  color: var(--text-color);
  transition: all var(--transition-normal);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(102, 126, 234, 0.1);
  box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
}

/* ==================== 照片网格 ==================== */
.photos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.photo-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
}

.photo-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.photo-card.selected {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3), var(--shadow);
}

.photo-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.photo-card:hover img {
  transform: scale(1.05);
}

.photo-card .photo-info {
  padding: 14px;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-normal);
}

.photo-card:hover .photo-info {
  opacity: 1;
  transform: translateY(0);
}

.photo-card .photo-name {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: white;
}

.photo-card .photo-folder {
  font-size: 11px;
  color: rgba(255,255,255,0.7);
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.photo-card .photo-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--primary-gradient);
  color: white;
  font-size: 11px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
}

.photo-card .select-checkbox {
  position: absolute;
  top: 12px;
  left: 12px;
  width: 28px;
  height: 28px;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--transition-normal);
}

.photo-card:hover .select-checkbox {
  opacity: 1;
}

.photo-card.selected .select-checkbox {
  opacity: 1;
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.photo-card.selected .select-checkbox svg {
  color: white;
}

/* ==================== 空状态 ==================== */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
}

.empty-state svg {
  width: 72px;
  height: 72px;
  margin-bottom: 20px;
  opacity: 0.4;
}

.empty-state p {
  font-size: 16px;
}

/* ==================== Toast 通知 ==================== */
#toast-container {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.toast {
  background: var(--card-bg-solid);
  backdrop-filter: blur(16px);
  padding: 18px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 300px;
  animation: slideIn 0.4s ease-out;
  border-left: 4px solid var(--primary-color);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast.success {
  border-left-color: var(--success-color);
}

.toast.error {
  border-left-color: var(--danger-color);
}

.toast.warning {
  border-left-color: var(--warning-color);
}

/* ==================== 模态框 ==================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
}

.modal-content {
  background: var(--card-bg-solid);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 32px;
  max-width: 440px;
  width: 90%;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.3s ease-out;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
}

.modal-content p {
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.6;
}

.modal-actions {
  display: flex;
  gap: 14px;
  justify-content: flex-end;
}

/* ==================== 设置页面 ==================== */
.layout-settings,
.music-settings {
  max-width: 1100px;
}

.setting-group {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 28px;
  transition: all var(--transition-normal);
}

.setting-group:hover {
  border-color: rgba(255,255,255,0.2);
}

.setting-group h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.setting-hint {
  font-size: 13px;
  color: var(--text-muted);
}

/* 布局选项网格 */
.layout-options {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.layout-option {
  background: var(--glass-bg);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.layout-option:hover {
  border-color: var(--primary-color);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.layout-option.selected {
  border-color: var(--primary-color);
  background: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.layout-preview {
  background: var(--card-bg-solid);
  border-radius: 8px;
  padding: 10px;
  height: 130px;
  display: grid;
  gap: 5px;
  margin-bottom: 14px;
}

.preview-item {
  background: var(--primary-gradient);
  border-radius: 6px;
  opacity: 0.8;
}

/* Classic Grid Preview */
.classic-grid-preview {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
}

/* Masonry Preview */
.masonry-preview {
  grid-template-columns: repeat(3, 1fr);
}

.masonry-preview .preview-item.tall {
  grid-row: span 2;
}

/* Masonry Full Preview */
.masonry-full-preview {
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding: 0;
}

.masonry-full-preview .preview-item {
  border-radius: 0;
}

.masonry-full-preview .preview-item.tall {
  grid-row: span 2;
}

/* Magazine Preview */
.magazine-preview {
  grid-template-columns: repeat(3, 1fr);
}

.magazine-preview .preview-item.large {
  grid-column: span 2;
  grid-row: span 2;
}

/* Dense Grid Preview */
.dense-grid-preview {
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, 1fr);
}

.dense-grid-preview .preview-item.small {
  opacity: 0.6;
}

/* Large Grid Preview */
.large-grid-preview {
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
}

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

.layout-name {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 3px;
}

.layout-desc {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
}

/* 设置行 */
.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--glass-border);
}

.setting-row:last-child {
  border-bottom: none;
}

.setting-row label {
  font-weight: 500;
}

.setting-control {
  display: flex;
  align-items: center;
  gap: 14px;
}

.setting-input {
  width: 90px;
  padding: 10px 14px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  font-size: 14px;
  text-align: center;
  color: var(--text-color);
  transition: all var(--transition-normal);
}

.setting-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(102, 126, 234, 0.1);
}

/* 设置操作按钮 */
.setting-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 28px;
}

.current-layout-status {
  font-size: 14px;
  color: var(--text-muted);
}

.current-layout-status span {
  font-weight: 600;
  color: var(--primary-color);
}

/* ==================== 音乐管理页面 ==================== */

/* 模式切换开关 */
.mode-switcher {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
}

.mode-toggle {
  position: relative;
  width: 200px;
  height: 48px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  display: flex;
  overflow: hidden;
}

.mode-toggle input {
  display: none;
}

.mode-toggle-label {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  z-index: 1;
  transition: color var(--transition-normal);
  color: var(--text-muted);
}

.mode-toggle-label svg {
  width: 18px;
  height: 18px;
}

.mode-toggle-slider {
  position: absolute;
  top: 4px;
  left: 4px;
  width: calc(50% - 4px);
  height: calc(100% - 8px);
  background: var(--primary-gradient);
  border-radius: calc(var(--radius) - 2px);
  transition: transform var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.mode-toggle input:checked ~ .mode-toggle-slider {
  transform: translateX(100%);
}

.mode-toggle input:checked ~ .mode-toggle-label:last-of-type,
.mode-toggle input:not(:checked) ~ .mode-toggle-label:first-of-type {
  color: white;
}

.mode-status {
  padding: 10px 20px;
  background: var(--primary-light);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--primary-color);
  font-weight: 500;
}

/* 上传区域 */
.upload-area {
  border: 2px dashed var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  background: var(--glass-bg);
  position: relative;
  overflow: hidden;
}

.upload-area::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--primary-gradient);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.upload-area:hover {
  border-color: var(--primary-color);
}

.upload-area:hover::before {
  opacity: 0.05;
}

.upload-area.dragover {
  border-color: var(--primary-color);
  background: var(--primary-light);
}

.upload-area.dragover::before {
  opacity: 0.1;
}

.upload-placeholder {
  position: relative;
  z-index: 1;
}

.upload-placeholder svg {
  width: 56px;
  height: 56px;
  color: var(--text-muted);
  margin-bottom: 20px;
  transition: color var(--transition-normal);
}

.upload-area:hover .upload-placeholder svg {
  color: var(--primary-color);
}

.upload-placeholder p {
  color: var(--text-muted);
  font-size: 15px;
}

/* 电台列表卡片 */
.radio-stations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.radio-station-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.radio-station-card:hover {
  border-color: var(--primary-color);
  transform: translateX(4px);
  background: rgba(102, 126, 234, 0.1);
}

.radio-station-card.active {
  border-color: var(--primary-color);
  background: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.station-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-gradient);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.station-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

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

.station-name {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 4px;
}

.station-meta {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  gap: 8px;
}

.station-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* 音乐列表 */
.music-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 20px;
}

.music-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  transition: all var(--transition-normal);
}

.music-item:hover {
  border-color: var(--primary-color);
  transform: translateX(4px);
  background: rgba(102, 126, 234, 0.05);
}

.music-item-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-gradient);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.music-item-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

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

.music-item-name {
  font-weight: 600;
  font-size: 15px;
  color: var(--text-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.music-item-meta {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.music-item-actions {
  display: flex;
  gap: 10px;
}

.music-item-actions .btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.music-item-actions .btn-icon svg {
  width: 18px;
  height: 18px;
}

/* 加载占位符 */
.loading-placeholder {
  text-align: center;
  padding: 60px;
  color: var(--text-muted);
}

.loading-placeholder svg {
  width: 36px;
  height: 36px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 上传进度 */
.upload-progress {
  margin-top: 16px;
}

.upload-progress-bar {
  height: 6px;
  background: var(--glass-border);
  border-radius: 3px;
  overflow: hidden;
}

.upload-progress-fill {
  height: 100%;
  background: var(--primary-gradient);
  transition: width 0.3s ease;
  border-radius: 3px;
}

.upload-progress-text {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Spinner */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--glass-border);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* 加载状态 */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
  .sidebar {
    width: 260px;
  }
  
  .main-content {
    margin-left: 260px;
    padding: 28px;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    width: 280px;
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
    padding: 20px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .toolbar-right {
    margin-left: 0;
  }
  
  .search-input {
    width: 100%;
  }
  
  .layout-options {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .setting-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  
  .setting-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .radio-stations-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .login-card {
    padding: 36px 28px;
  }
  
  .page-header h1 {
    font-size: 26px;
  }
  
  .stat-card {
    padding: 20px;
  }
  
  .stat-icon {
    width: 52px;
    height: 52px;
  }
  
  .stat-info h3 {
    font-size: 28px;
  }
  
  .layout-options {
    grid-template-columns: 1fr;
  }
  
  .mode-toggle {
    width: 100%;
  }
}