/* ========================================
   AI Image Studio V5 — 设计系统
   浅色清爽电商工具风格
   ======================================== */

/* -------- CSS 变量 -------- */
:root {
  /* 品牌色系 */
  --color-primary: #6366f1;
  --color-primary-light: #818cf8;
  --color-primary-lighter: #c7d2fe;
  --color-primary-bg: #eef2ff;
  --color-primary-dark: #4f46e5;

  /* 中性色 */
  --color-white: #ffffff;
  --color-bg: #f8fafc;
  --color-bg-alt: #f1f5f9;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;

  /* 文字色 */
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;

  /* 功能色 */
  --color-success: #10b981;
  --color-success-bg: #ecfdf5;
  --color-warning: #f59e0b;
  --color-warning-bg: #fffbeb;
  --color-error: #ef4444;
  --color-error-bg: #fef2f2;
  --color-info: #3b82f6;
  --color-info-bg: #eff6ff;

  /* 尺寸 */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;

  /* 阴影 */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.06), 0 2px 4px -2px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.06), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);

  /* 间距 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* 过渡 */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); }

/* -------- 导航栏 -------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  padding: 0 var(--space-lg);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  gap: var(--space);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.nav-logo {
  width: 32px !important;
  height: 32px !important;
  flex-shrink: 0;
  max-width: 32px;
  max-height: 32px;
  transition: transform var(--transition);
}

.nav-brand:hover .nav-logo { transform: rotate(-6deg) scale(1.05); }

.nav-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

.nav-title strong {
  background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-username {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

/* -------- 应用主布局 -------- */
.app-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  min-height: calc(100vh - 56px);
  max-width: 1440px;
  margin: 0 auto;
}

/* -------- 侧边栏 -------- */
.sidebar {
    display: none;
  background: var(--color-white);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.sidebar-header h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

.sidebar-subtitle {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 2px;
  display: block;
}

.workflow-list {
  flex: 1;
  padding: var(--space-sm);
  overflow-y: auto;
}

.workflow-card {
  position: relative;
  padding: var(--space);
  margin-bottom: var(--space-sm);
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition),
              border-color var(--transition), background var(--transition);
  border: 2px solid transparent;
}

.workflow-card:hover {
  background: var(--color-bg);
  border-color: var(--color-border);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.workflow-card:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.workflow-card.active {
  background: var(--color-primary-bg);
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.workflow-card.active::before {
  content: '';
  position: absolute;
  left: -2px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 60%;
  background: var(--color-primary);
  border-radius: 0 4px 4px 0;
}

.workflow-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.workflow-card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: transform var(--transition);
}

.workflow-card:hover .workflow-card-icon,
.workflow-card.active .workflow-card-icon {
  transform: scale(1.06);
}

.workflow-card-icon.main-image { background: #eef2ff; color: #6366f1; }
.workflow-card-icon.detail-page { background: #fdf2f8; color: #db2777; }

.workflow-card-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.workflow-card-meta {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.workflow-card-badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 100px;
  font-size: 0.65rem;
  font-weight: 600;
  margin-top: 6px;
}

.workflow-card-badge.main {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.workflow-card-badge.detail {
  background: #fdf2f8;
  color: #db2777;
}

.wf-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
}

.wf-tag {
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.6rem;
  font-weight: 500;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
}

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

.history-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  transition: all var(--transition);
}

.history-toggle:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.badge {
  margin-left: auto;
  padding: 2px 8px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

/* -------- 主内容区 -------- */
.main-content {
  padding: var(--space-xl);
  overflow-y: auto;
  max-height: calc(100vh - 56px);
}

/* 空状态 */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  padding: var(--space-2xl);
  position: relative;
}

.empty-state::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 40%, var(--color-primary-bg) 0%, transparent 60%);
  opacity: 0.6;
  pointer-events: none;
  z-index: 0;
}

.empty-state > * { position: relative; z-index: 1; }

.empty-icon {
  margin-bottom: var(--space-lg);
  opacity: 0.95;
  animation: floatY 4s ease-in-out infinite;
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}


.empty-icon svg { width: 120px !important; height: 120px !important; max-width: 120px; max-height: 120px; }
.empty-state h2 {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.empty-state p {
  max-width: 420px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.empty-state-tip {
  margin-top: var(--space-lg);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  box-shadow: var(--shadow-sm);
}

.empty-state-tip svg { color: var(--color-primary); }

/* -------- 工作面板 -------- */
.work-panel {
  max-width: 800px;
}

.active-workflow-bar {
  padding: var(--space) var(--space-lg);
  background: linear-gradient(135deg, var(--color-primary-bg) 0%, rgba(199, 210, 254, 0.3) 100%);
  border: 1px solid var(--color-primary-lighter);
  border-radius: var(--radius);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  position: relative;
  overflow: hidden;
}

.active-workflow-bar::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-primary), #8b5cf6);
}

.active-workflow-bar .awf-name {
  font-weight: 700;
  color: var(--color-primary-dark);
}

.active-workflow-bar .awf-meta {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

/* 面板区块 */
.panel-section {
  margin-bottom: var(--space-lg);
}

.section-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: var(--space);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* -------- 上传区域 -------- */
.upload-area {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition),
              box-shadow var(--transition), transform var(--transition);
  background: var(--color-white);
  position: relative;
  overflow: hidden;
}

.upload-area::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%),
              var(--color-primary-bg) 0%, transparent 40%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

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

.upload-area:hover::after { opacity: 0.6; }

.upload-area.drag-over {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.12), var(--shadow);
  transform: scale(1.005);
}

.upload-placeholder {
  position: relative;
  z-index: 1;
  transition: transform var(--transition);
}

.upload-area.drag-over .upload-placeholder {
  transform: scale(1.03);
}

.upload-placeholder svg {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  transition: color var(--transition), transform var(--transition);
}

.upload-area:hover .upload-placeholder svg,
.upload-area.drag-over .upload-placeholder svg {
  color: var(--color-primary);
  transform: translateY(-2px);
}

.upload-text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.upload-text strong {
  color: var(--color-primary);
  font-weight: 700;
}

.upload-hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 6px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* 图片预览网格 - 在upload-area内部 */
.image-preview-grid {
  display: none;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-sm);
  padding: var(--space-sm);
}

.upload-area.has-images .image-preview-grid {
  display: grid;
}

.upload-area.has-images .upload-placeholder {
  display: none;
}

.image-preview-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

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

.image-preview-item .remove-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.7);
  color: white;
  border: 2px solid rgba(255,255,255,0.3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  opacity: 0;
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
}

.image-preview-item:hover .remove-btn { opacity: 1; }

.image-preview-item .remove-btn:hover {
  background: var(--color-error);
  transform: scale(1.1);
}

/* 离心机工作流图片角色标签 */
.role-tag {
  position: absolute;
  top: 6px;
  left: 6px;
  background: #1a73e8;
  color: #fff;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 3px;
  z-index: 2;
  font-weight: 500;
  letter-spacing: 0.3px;
}

/* -------- 表单 -------- */
.form-row {
  margin-bottom: var(--space);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 10px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: inherit;
  background: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

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

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}

/* -------- 按钮 -------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 36px;
  padding: 0 16px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  font-family: inherit;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), box-shadow var(--transition),
              transform var(--transition);
  white-space: nowrap;
  outline: none;
  text-decoration: none;
  line-height: 1;
}

.btn:active { transform: scale(0.97); }

.btn:disabled { cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #7c3aed);
  color: white;
  border: none;
  box-shadow: 0 1px 2px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
  transform: translateY(-1px);
}

.btn-primary:disabled {
  opacity: 0.5;
  transform: none;
  box-shadow: none;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-bg);
  color: var(--color-text);
}

.btn-outline {
  background: var(--color-white);
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}

.btn-outline:hover:not(:disabled) {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

.btn-sm { height: 30px; padding: 0 12px; font-size: 0.8rem; }
.btn-xs { height: 26px; padding: 0 10px; font-size: 0.75rem; border-radius: var(--radius-sm); }
.btn-lg { height: 44px; padding: 0 28px; font-size: 0.95rem; }
.btn-full { width: 100%; }

.btn-generate {
  width: 100%;
  height: 52px;
  padding: 0 32px;
  font-size: 1rem;
  border-radius: var(--radius-lg);
  letter-spacing: 0.02em;
}

.generate-hint {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 8px;
}

/* -------- 登录模态框 -------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(15,23,42,0.5);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 200;
}

.modal-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-xl);
}

.modal-card h2 {
  font-size: 1.3rem;
  margin-bottom: 4px;
}

.modal-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.login-form .form-group { margin-bottom: var(--space); }

.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.error-msg {
  margin-top: var(--space);
  padding: var(--space-sm);
  border-radius: var(--radius);
  background: var(--color-error-bg);
  color: var(--color-error);
  font-size: 0.8rem;
}

/* -------- 进度面板 -------- */
.progress-panel {
  padding: var(--space-lg);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.progress-bar-track {
  height: 6px;
  background: var(--color-bg-alt);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), #8b5cf6);
  border-radius: 3px;
  width: 0%;
  transition: width 600ms cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-stages {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}

.progress-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
}

.stage-indicator {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-slow), background var(--transition-slow),
              transform var(--transition), box-shadow var(--transition-slow);
  position: relative;
}

.stage-indicator .stage-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  transition: background var(--transition), width var(--transition), height var(--transition);
}

.stage-indicator.running {
  border-color: var(--color-primary);
  animation: pulse 1.5s ease-in-out infinite;
}

.stage-indicator.running .stage-dot {
  background: var(--color-primary);
  animation: stagePulse 1s ease-in-out infinite;
}

@keyframes stagePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

.stage-indicator.completed {
  border-color: var(--color-success);
  background: var(--color-success);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
  animation: stageComplete 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes stageComplete {
  0% { transform: scale(0.8); }
  60% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

.stage-indicator.completed .stage-dot {
  background: white;
  width: 10px;
  height: 10px;
}

.stage-indicator.failed {
  border-color: var(--color-error);
  background: var(--color-error-bg);
  animation: stageShake 400ms ease-in-out;
}

@keyframes stageShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  75% { transform: translateX(3px); }
}

.stage-indicator.failed .stage-dot {
  background: var(--color-error);
  border-radius: 1px;
  width: 3px;
  height: 12px;
  position: relative;
}

.stage-indicator.failed .stage-dot::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 3px;
  background: var(--color-error);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.stage-name {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text);
}

.stage-status {
  font-size: 0.65rem;
  color: var(--color-text-muted);
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.3); }
  50% { box-shadow: 0 0 0 8px rgba(99, 102, 241, 0); }
}

/* -------- Stage输出 -------- */
.stage-outputs {
  margin-top: var(--space-lg);
}

.stage-output-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: var(--space);
  overflow: hidden;
}

.stage-output-header {
  padding: var(--space-sm) var(--space);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.stage-output-header h5 {
  font-size: 0.8rem;
  color: var(--color-text);
}

.stage-output-body {
  padding: var(--space);
  max-height: 300px;
  overflow-y: auto;
  font-size: 0.8rem;
  line-height: 1.6;
  white-space: pre-wrap;
  color: var(--color-text-secondary);
  display: none;
}

.stage-output-card.expanded .stage-output-body {
  display: block;
}

/* -------- 结果面板 -------- */
.result-panel {
  margin-top: var(--space-lg);
}

.result-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space);
  flex-wrap: wrap;
}

.result-header .section-title {
  margin-bottom: 0;
  flex: 1;
  min-width: 0;
}

.result-actions {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space);
}

.gallery-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition),
              border-color var(--transition);
}

.gallery-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--color-primary-light);
}

.gallery-card-image {
  aspect-ratio: 1;
  background: var(--color-bg);
  cursor: pointer;
  overflow: hidden;
  position: relative;
}

.gallery-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

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

.gallery-card-info {
  padding: var(--space-sm) var(--space);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.gallery-card-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text);
}

.gallery-card-actions {
  display: flex;
  gap: var(--space-xs);
}

.gallery-card-actions .btn {
  font-size: 0.72rem;
  height: 28px;
  padding: 0 10px;
  flex: 1;
}

/* -------- 图片放大模态框 -------- */
.image-modal {
  z-index: 300;
}

.image-modal img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 2rem;
  color: white;
  cursor: pointer;
}

.modal-image-info {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space);
  background: rgba(0,0,0,0.7);
  color: white;
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.85rem;
}

/* -------- 历史任务抽屉 -------- */
.history-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 420px;
  max-width: 90vw;
  height: 100vh;
  z-index: 150;
  background: var(--color-white);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.drawer-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--space);
}

.history-item {
  padding: var(--space);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-sm);
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition),
              background var(--transition), box-shadow var(--transition);
}

.history-item:hover {
  border-color: var(--color-primary);
  background: var(--color-bg);
  transform: translateX(2px);
  box-shadow: var(--shadow-sm);
}

.history-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.history-item-name {
  font-size: 0.85rem;
  font-weight: 600;
}

.history-item-status {
  padding: 2px 8px;
  border-radius: 100px;
  font-size: 0.65rem;
  font-weight: 600;
}

.status-completed { background: var(--color-success-bg); color: var(--color-success); }
.status-failed { background: var(--color-error-bg); color: var(--color-error); }
.status-pending, .status-extracting, .status-planning, .status-generating, .status-rendering {
  background: var(--color-warning-bg); color: var(--color-warning);
}
.status-cancelled { background: var(--color-bg-alt); color: var(--color-text-muted); }

.history-item-meta {
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

/* -------- Toast -------- */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 400;
  display: flex;
  flex-direction: column-reverse;
  gap: var(--space-sm);
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: toastIn 300ms ease;
  max-width: 360px;
}

.toast-success { background: var(--color-success); color: white; }
.toast-error { background: var(--color-error); color: white; }
.toast-info { background: var(--color-info); color: white; }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ========================================
   右侧生成结果面板
   ======================================== */

/* 主内容区适配右侧面板 */
/* ===== 生成结果占位图 ===== */
.rsp-count-badge {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  padding: 2px 10px;
  border-radius: 100px;
  margin-left: auto;
  margin-right: var(--space-sm);
}

/* 占位卡片 - 复用 image-gallery 网格 */
.gallery-placeholder {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
  transition: border-color var(--transition-slow), background var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.gallery-placeholder .placeholder-img {
  aspect-ratio: 1;
  background: linear-gradient(90deg, var(--color-bg-alt) 25%, var(--color-border-light) 50%, var(--color-bg-alt) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  position: relative;
}

.gallery-placeholder .placeholder-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 24 24' fill='none' stroke='%23cbd5e1' stroke-width='1.2'%3E%3Crect x='3' y='3' width='18' height='18' rx='2'/%3E%3Ccircle cx='9' cy='9' r='2'/%3E%3Cpath d='M21 15l-5-5L5 21'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.5;
}

.gallery-placeholder .placeholder-label {
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-align: center;
  border-top: 1px solid var(--color-border-light);
}

.gallery-placeholder .placeholder-status {
  font-size: 0.65rem;
  color: var(--color-primary);
  text-align: center;
  padding: 0 var(--space-xs) var(--space-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.gallery-placeholder .placeholder-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse 1.5s ease-in-out infinite;
}

/* 生成完成后转为正常卡片 */
.gallery-placeholder.completed {
  border-style: solid;
  border-color: var(--color-success);
}
.gallery-placeholder.completed .placeholder-label { color: var(--color-success); }
.gallery-placeholder.completed .placeholder-status { color: var(--color-success); }

.gallery-placeholder.failed {
  border-style: solid;
  border-color: var(--color-error);
  background: var(--color-error-bg);
}
.gallery-placeholder.failed .placeholder-label { color: var(--color-error); }

.gallery-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: fadeInImage 300ms ease;
}

@keyframes fadeInImage {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* -------- 响应式 -------- */
/* 移动端工作流浮动按钮 */
.mobile-wf-btn {
  display: none;
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 99;
  background: linear-gradient(135deg, var(--color-primary), #7c3aed);
  color: white;
  border: none;
  padding: 0 20px;
  height: 44px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(99,102,241,0.45);
  align-items: center;
  gap: 6px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.mobile-wf-btn:hover {
  transform: translateX(-50%) translateY(-2px);
  box-shadow: 0 6px 24px rgba(99,102,241,0.55);
}

.mobile-wf-btn:active {
  transform: translateX(-50%) scale(0.97);
}

@media (max-width: 768px) {
  .app-layout {
    grid-template-columns: 1fr;
  }

  .navbar {
    padding: 0 var(--space);
    gap: var(--space-sm);
  }

  .nav-title { font-size: 0.85rem; }

  .nav-menu-btn { display: inline-flex; }

  .top-nav {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    padding: var(--space-sm);
    gap: var(--space-xs);
    z-index: 99;
    transform: translateY(-110%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-lg);
    overflow-x: auto;
    margin: 0;
  }

  .top-nav.open {
    transform: translateY(0);
  }

  .tn-item {
    padding: 8px 14px;
    font-size: 0.8rem;
    flex-shrink: 0;
  }

  .sidebar {
    position: fixed;
    left: -300px;
    top: 56px;
    bottom: 0;
    width: 280px;
    z-index: 98;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-xl);
  }

  .sidebar.open { left: 0; }

  .mobile-wf-btn { display: flex; }

  .main-content {
    padding: var(--space);
    max-height: none;
    padding-bottom: 80px;
  }

  .progress-stages {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space);
  }

  .image-gallery {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--space-sm);
  }

  .history-drawer {
    width: 100vw;
  }

  .result-header {
    gap: var(--space-xs);
  }

  .result-header .section-title {
    font-size: 0.9rem;
  }

  /* 弹窗适配 */
  .modal-card,
  .modal-box {
    margin: var(--space);
    padding: var(--space-lg);
  }
}

/* -------- 骨架加载 -------- */
.skeleton {
  background: linear-gradient(90deg, var(--color-bg-alt) 25%, var(--color-border-light) 50%, var(--color-bg-alt) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* -------- 焦点样式（无障碍） -------- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ========================================
   顶部Tab导航
   ======================================== */
.top-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 3px;
  margin: 0 auto;
}

.tn-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  height: 32px;
}

.tn-item:hover {
  color: var(--color-text);
  background: var(--color-white);
}

.tn-item.active {
  color: var(--color-primary);
  background: var(--color-white);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.tn-item.active::after {
  content: '';
  display: block;
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), #8b5cf6);
  border-radius: 100px;
  margin: 2px auto -4px;
}

/* 移动端汉堡菜单按钮 */
.nav-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.nav-menu-btn:hover { background: var(--color-bg); }

/* 移动端侧边栏遮罩 */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(2px);
  z-index: 97;
  opacity: 0;
  transition: opacity var(--transition);
}

.sidebar-backdrop.show {
  display: block;
  opacity: 1;
}

/* ========================================
   页面通用布局
   ======================================== */
.page-section {
  min-height: calc(100vh - 56px);
}

.page-centered {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-xl);
}

.page-header {
  text-align: center;
  margin-bottom: var(--space-xl);
  padding-top: var(--space-lg);
}

.page-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}

.page-sub {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ========================================
   工具栏
   ======================================== */
.page-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.tb-search {
  flex: 1;
  min-width: 200px;
}

.tb-input {
  width: 100%;
  padding: 9px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-family: inherit;
  background: var(--color-white);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.tb-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

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

.tb-filters {
  display: flex;
  gap: var(--space-sm);
}

.tb-select {
  padding: 9px 14px;
  padding-right: 32px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-family: inherit;
  background: var(--color-white);
  color: var(--color-text);
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 5l3 3 3-3' stroke='%2394a3b8' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.tb-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.tb-view-btn {
  padding: 9px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 500;
  font-family: inherit;
  background: var(--color-white);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.tb-view-btn:hover {
  border-color: var(--color-primary-light);
  color: var(--color-text);
}

.tb-view-btn.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

/* ========================================
   空状态提示
   ======================================== */
.empty-hint {
  text-align: center;
  padding: var(--space-2xl) var(--space);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.empty-hint::before {
  content: '';
  width: 64px;
  height: 64px;
  background: var(--color-bg-alt);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='1.5'%3E%3Crect x='3' y='3' width='18' height='18' rx='2'/%3E%3Ccircle cx='9' cy='9' r='2'/%3E%3Cpath d='M21 15l-5-5L5 21'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 28px;
  margin-bottom: var(--space-sm);
}

/* ========================================
   历史记录列表
   ======================================== */
.history-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.history-card {
  display: flex;
  align-items: center;
  gap: var(--space);
  padding: var(--space);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition),
              border-color var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}

.history-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary);
  transform: scaleY(0);
  transform-origin: center;
  transition: transform var(--transition);
}

.history-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.history-card:hover::before { transform: scaleY(1); }

.history-card-thumb {
  width: 72px;
  height: 72px;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  flex-shrink: 0;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--color-border-light);
}

.history-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

.history-card:hover .history-card-thumb img {
  transform: scale(1.08);
}

.history-card-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--color-bg-alt), var(--color-border-light));
}

.history-card-body {
  flex: 1;
  min-width: 0;
}

.history-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-card-meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.history-card-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  flex-shrink: 0;
}

.history-card-badge.completed {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.history-card-badge.running {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

.history-card-badge.failed {
  background: var(--color-error-bg);
  color: var(--color-error);
}

/* ========================================
   图库网格
   ======================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space);
}

.gallery-grid.masonry {
  columns: 3 240px;
  column-gap: var(--space);
  display: block;
}

.gallery-grid.masonry .gallery-item {
  break-inside: avoid;
  margin-bottom: var(--space);
  display: inline-block;
  width: 100%;
}

.gallery-item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition),
              border-color var(--transition);
  cursor: pointer;
  position: relative;
}

.gallery-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--color-primary-light);
  z-index: 1;
}

.gallery-item-image {
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, var(--color-bg-alt), var(--color-border-light));
  overflow: hidden;
  position: relative;
}

.gallery-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item:hover .gallery-item-image img {
  transform: scale(1.08);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.7) 0%, rgba(15, 23, 42, 0.1) 50%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: var(--space);
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item-overlay .btn {
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,0.95);
  color: var(--color-text);
  transform: translateY(8px);
  transition: transform var(--transition);
}

.gallery-item:hover .gallery-item-overlay .btn {
  transform: translateY(0);
}

.gallery-item-info {
  padding: var(--space-sm) var(--space);
  border-top: 1px solid var(--color-border-light);
}

.gallery-item-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.gallery-item-meta {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ========================================
   用户设置页
   ======================================== */
.settings-tabs {
  display: flex;
  gap: 2px;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 3px;
  margin-bottom: var(--space-xl);
  max-width: 360px;
  margin-left: auto;
  margin-right: auto;
}

.st-tab {
  flex: 1;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.st-tab:hover {
  color: var(--color-text);
}

.st-tab.active {
  background: var(--color-white);
  color: var(--color-primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.st-panel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  max-width: 480px;
  margin: 0 auto;
}

.st-panel h3 {
  font-size: 1rem;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

.st-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border-light);
  font-size: 0.9rem;
}

.st-row:last-of-type {
  border-bottom: none;
  margin-bottom: var(--space-lg);
}

.st-row span:first-child {
  color: var(--color-text-secondary);
}

.st-row span:last-child {
  font-weight: 600;
  color: var(--color-text);
}

.st-panel .form-group {
  margin-bottom: var(--space);
}

.st-panel .form-group input {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.st-panel .form-group input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.st-panel .btn {
  margin-top: var(--space);
  width: 100%;
}

/* 主题选项 */
.theme-options {
  display: flex;
  flex-direction: column;
  gap: var(--space);
}

.theme-options label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.theme-options label:hover {
  border-color: var(--color-primary-light);
  background: var(--color-bg);
}

.theme-options input[type="radio"] {
  accent-color: var(--color-primary);
  width: 18px;
  height: 18px;
}

/* ========================================
   响应式适配（新增页面）
   ======================================== */
@media (max-width: 768px) {
  /* 导航栏Tab适配 */
  .top-nav {
    gap: 0;
    padding: 2px;
  }

  .tn-item {
    padding: 6px 10px;
    font-size: 0.72rem;
    gap: 2px;
  }

  /* 页面布局 */
  .page-centered {
    padding: var(--space);
    padding-top: var(--space-lg);
  }

  .page-title {
    font-size: 1.2rem;
  }

  .page-header { margin-bottom: var(--space-lg); }

  /* 工具栏 */
  .page-toolbar {
    flex-direction: column;
    gap: var(--space-sm);
    align-items: stretch;
  }

  .tb-search {
    min-width: 0;
  }

  .tb-filters {
    width: 100%;
  }

  .tb-filters .tb-select {
    flex: 1;
  }

  /* 图库 */
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--space-sm);
  }

  .gallery-grid.masonry {
    columns: 2 160px;
  }

  /* 设置 */
  .st-panel {
    max-width: none;
    padding: var(--space);
  }

  .settings-tabs {
    max-width: none;
  }
}

@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery-grid.masonry {
    columns: 2;
  }

  .history-card {
    padding: var(--space-sm);
    gap: var(--space-sm);
  }

  .history-card-thumb {
    width: 56px;
    height: 56px;
  }

  .history-card-title {
    font-size: 0.85rem;
  }

  .image-gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  .btn-generate {
    height: 48px;
    font-size: 0.95rem;
  }
}

/* ===== 单图重试按钮 ===== */
.btn-retry-single,
.btn-publish-single {
  display: none;
  margin-top: 8px;
  padding: 4px 12px;
  font-size: 0.75rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all 0.2s;
  width: 100%;
}
.btn-retry-single:hover,
.btn-publish-single:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-bg);
  transform: translateY(-1px);
}
.btn-publish-single:hover {
  color: var(--color-success);
  border-color: var(--color-success);
  background: var(--color-success-bg);
}

.placeholder-actions {
  display: none;
  gap: 6px;
  margin-top: 6px;
  justify-content: center;
  padding: 0 var(--space-xs);
}
.placeholder-actions .btn-retry-single,
.placeholder-actions .btn-publish-single {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 30px;
  padding: 0;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-white);
  cursor: pointer;
  transition: all var(--transition);
  flex: 0 0 auto;
}
.placeholder-actions .btn-retry-single:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.placeholder-actions .btn-publish-single {
  color: var(--color-success);
}
.placeholder-actions .btn-publish-single:hover {
  color: var(--color-white);
  border-color: var(--color-success);
  background: var(--color-success);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* ===== 发布弹窗 ===== */
.modal-box {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  width: 420px;
  max-width: 90vw;
  box-shadow: 0 12px 40px rgba(0,0,0,0.15);
  animation: modalIn 250ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(20px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-box h3 {
  margin: 0 0 4px;
  font-size: 1.15rem;
  font-weight: 700;
}
.modal-desc {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin-bottom: 16px;
}
.tag-select {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
  max-height: 180px;
  overflow-y: auto;
  padding: 4px;
}
.tag-option {
  padding: 6px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--color-text-secondary);
  background: var(--color-white);
  user-select: none;
  line-height: 1.2;
}
.tag-option:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-bg);
  transform: translateY(-1px);
}
.tag-option.active {
  background: linear-gradient(135deg, var(--color-primary), #7c3aed);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}
.tag-option.custom {
  border-style: dashed;
  position: relative;
}
.tag-option.custom::before {
  content: '✎';
  margin-right: 4px;
  font-size: 0.7rem;
  opacity: 0.7;
}
.custom-tag-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.selected-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
  min-height: 28px;
  padding: 4px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
}
.selected-tags:empty::before {
  content: '已选标签将显示在这里';
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding: 4px 8px;
  align-self: center;
}
.selected-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  animation: tagIn 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes tagIn {
  from { opacity: 0; transform: scale(0.6); }
  to { opacity: 1; transform: scale(1); }
}

.remove-tag {
  cursor: pointer;
  font-size: 0.7rem;
  opacity: 0.7;
  display: inline-flex;
  width: 14px;
  height: 14px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all var(--transition);
}
.remove-tag:hover {
  opacity: 1;
  background: rgba(255,255,255,0.3);
  transform: rotate(90deg);
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border-light);
}