/* ===== 基础变量 ===== */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2332;
  --bg-card-hover: #1f2b3d;
  --bg-sidebar: #0d1321;
  --bg-input: #1a2332;
  --border: #1e2d3d;
  --border-light: #2a3a4d;
  --text-primary: #e8edf5;
  --text-secondary: #8899aa;
  --text-muted: #5a6a7a;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --green: #10b981;
  --orange: #f59e0b;
  --red: #ef4444;
  --purple: #8b5cf6;
  --pink: #ec4899;
  --cyan: #06b6d4;
  --sidebar-width: 260px;
  --topbar-height: 60px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --transition: 0.2s ease;
}

/* ===== 重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 14px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
  height: 100vh;
}
a { text-decoration: none; color: inherit; }
button { border: none; cursor: pointer; font-family: inherit; }
input, textarea {
  font-family: inherit;
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.95rem;
  outline: none;
  transition: border var(--transition);
}
input:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; }

/* ===== 布局 ===== */
.app {
  display: flex;
  height: 100vh;
}

/* ===== 侧边栏 ===== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: width 0.3s ease, transform 0.3s ease;
  z-index: 100;
}
.sidebar.collapsed { width: 64px; }
.sidebar.collapsed .sidebar-header span,
.sidebar.collapsed .nav-title,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .badge { display: none; }
.sidebar.collapsed .nav-item { justify-content: center; padding: 12px; }
.sidebar.collapsed .nav-item i { margin-right: 0; font-size: 1.2rem; }

.sidebar-header {
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
}
.logo i { font-size: 1.5rem; }
.sidebar-toggle {
  background: none;
  color: var(--text-secondary);
  font-size: 1.1rem;
  padding: 6px;
  border-radius: 6px;
  transition: all var(--transition);
}
.sidebar-toggle:hover { color: var(--text-primary); background: var(--bg-card); }

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}
.nav-section { margin-bottom: 8px; }
.nav-title {
  padding: 8px 20px 6px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 600;
}
.nav-item {
  display: flex;
  align-items: center;
  padding: 10px 20px;
  color: var(--text-secondary);
  transition: all var(--transition);
  border-left: 3px solid transparent;
  gap: 4px;
}
.nav-item:hover {
  color: var(--text-primary);
  background: var(--accent-glow);
}
.nav-item.active {
  color: var(--accent);
  background: var(--accent-glow);
  border-left-color: var(--accent);
}
.nav-item i { width: 20px; text-align: center; margin-right: 10px; }
.nav-item span { flex: 1; }
.badge {
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 10px;
  font-weight: 600;
}

/* ===== 主内容 ===== */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* ===== 顶栏 ===== */
.topbar {
  height: var(--topbar-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
.menu-btn {
  display: none;
  background: none;
  color: var(--text-secondary);
  font-size: 1.2rem;
  padding: 8px;
}
.platform-switch {
  display: flex;
  gap: 4px;
  background: var(--bg-card);
  padding: 4px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.platform-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: calc(var(--radius-sm) - 2px);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.platform-btn:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.04);
}
.platform-btn.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(59,130,246,0.3);
}
.platform-btn i { font-size: 1rem; }
.search-box {
  position: relative;
  width: 240px;
}
@media (max-width: 1200px) {
  .search-box { width: 180px; }
  .platform-btn { padding: 7px 10px; font-size: 0.8rem; }
}
.search-box i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}
.search-box input {
  width: 100%;
  padding-left: 40px;
  background: var(--bg-card);
}
.view-toggle { display: flex; gap: 4px; }
.view-btn {
  background: var(--bg-card);
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.view-btn:hover { color: var(--text-primary); }
.view-btn.active { background: var(--accent); color: #fff; }

/* ===== 页面标题 ===== */
.page-header {
  padding: 24px 28px 8px;
  flex-shrink: 0;
}
.page-header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.page-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ===== 场景筛选条 ===== */
.scene-bar {
  display: flex;
  gap: 8px;
  padding: 4px 28px 12px;
  flex-wrap: wrap;
  flex-shrink: 0;
}
.scene-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.scene-chip:hover {
  border-color: var(--border-light);
  color: var(--text-primary);
}
.scene-chip.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.scene-chip i { font-size: 0.75rem; }
.scene-chip .chip-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 16px;
  padding: 0 5px;
  border-radius: 8px;
  font-size: 0.68rem;
  font-weight: 600;
  background: rgba(255,255,255,0.08);
  color: inherit;
  margin-left: 2px;
}
.scene-chip.active .chip-count {
  background: rgba(255,255,255,0.22);
}

/* ===== 卡片网格 ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  padding: 20px 28px 40px;
  overflow-y: auto;
  flex: 1;
}
.cards-grid.list-view {
  grid-template-columns: 1fr;
}
.cards-grid.list-view .card {
  flex-direction: row;
  align-items: center;
}
.cards-grid.list-view .card-header {
  flex-direction: row;
  align-items: center;
  gap: 16px;
}
.cards-grid.list-view .card-body { display: none; }

/* ===== 卡片 ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent, var(--accent));
  opacity: 0;
  transition: opacity 0.3s;
}
.card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.card:hover::before { opacity: 1; }

.card-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 14px;
}
.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
  background: var(--card-accent, var(--accent));
  color: #fff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.card-info { flex: 1; min-width: 0; }
.card-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 3px;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  white-space: nowrap;
}
.card-name-text {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-tag {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  background: var(--accent-glow);
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
  max-width: 60%;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-subtitle {
  color: var(--text-secondary);
  font-size: 0.85rem;
}
.card-body {
  flex: 1;
}
.card-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.card-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.card-tags span {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 4px;
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.card-action {
  background: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 6px;
  transition: all var(--transition);
}
.card-action:hover { color: var(--accent); background: var(--accent-glow); }
.card-count {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== 卡片内提示词列表 ===== */
.card-prompt-list {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.card-prompt-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.card-prompt-item:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--text-primary);
}
.prompt-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.prompt-item-title { flex: 1; }
.prompt-item-copy {
  background: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 3px 6px;
  border-radius: 4px;
  opacity: 0;
  transition: all var(--transition);
}
.card-prompt-item:hover .prompt-item-copy { opacity: 1; }
.prompt-item-copy:hover { color: var(--accent); background: var(--accent-glow); }
.prompt-scene-tag {
  font-size: 0.65rem;
  padding: 1px 6px;
  border-radius: 3px;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}
.composite-phase-badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  margin-right: 6px;
}
.prompt-count-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 0.65rem;
  padding: 1px 6px;
  border-radius: 8px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-glow);
  white-space: nowrap;
  flex-shrink: 0;
}
.prompt-count-badge i { font-size: 0.6rem; }
.composite-count-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-glow);
  margin-left: 8px;
  vertical-align: middle;
}
.composite-count-badge i { font-size: 0.65rem; }

/* ===== 弹窗 ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}
.modal-overlay.show { opacity: 1; visibility: visible; }
.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 90%;
  max-width: 780px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  transform: scale(0.95) translateY(10px);
  transition: transform 0.3s;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.modal-overlay.show .modal { transform: scale(1) translateY(0); }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-title-area {
  display: flex;
  align-items: center;
  gap: 12px;
}
.modal-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #fff;
}
.modal-header h2 { font-size: 1.3rem; }
.modal-tag {
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 600;
}
.modal-close {
  background: var(--bg-card);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.modal-close:hover { background: var(--red); color: #fff; }

.modal-body {
  padding: 20px 28px 28px;
  overflow-y: auto;
  flex: 1;
}

/* ===== 弹窗Tab ===== */
.modal-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.prompt-tab {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
}
.prompt-tab:hover {
  color: var(--text-primary);
  border-color: var(--border-light);
}
.prompt-tab.active {
  border-color: transparent;
}

.modal-desc {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  font-size: 0.95rem;
}
.prompt-container {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.prompt-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}
.prompt-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.btn-copy-modal {
  background: var(--accent);
  color: #fff;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all var(--transition);
}
.btn-copy-modal:hover { background: var(--accent-hover); }
.prompt-content {
  padding: 20px;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 400px;
  overflow-y: auto;
}
.modal-meta {
  margin-top: 16px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.modal-meta span {
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: 6px;
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ===== 复合模板区 ===== */
.composite-section {
  padding: 20px 28px 40px;
  overflow-y: auto;
  flex: 1;
}
.composite-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 20px;
  overflow: hidden;
  transition: all 0.3s;
}
.composite-card:hover { border-color: var(--border-light); }
.composite-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  transition: background 0.2s;
}
.composite-header:hover { background: var(--bg-card-hover); }
.composite-title-area { display: flex; align-items: center; gap: 14px; }
.composite-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #fff;
  flex-shrink: 0;
}
.composite-info h3 { font-size: 1.1rem; margin-bottom: 3px; }
.composite-info p { color: var(--text-secondary); font-size: 0.85rem; }
.composite-roles {
  display: flex;
  gap: 6px;
}
.composite-roles span {
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 500;
}
.composite-expand {
  color: var(--text-muted);
  font-size: 1rem;
  transition: transform 0.3s;
}
.composite-card.open .composite-expand { transform: rotate(180deg); }
.composite-body {
  display: none;
  padding: 0 24px 24px;
}
.composite-card.open .composite-body { display: block; }
.composite-prompt-box {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.composite-prompt-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}
.composite-prompt-content {
  padding: 20px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.88rem;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 500px;
  overflow-y: auto;
}

/* ===== 自由组合 ===== */
.custom-section {
  padding: 20px 28px 40px;
  overflow-y: auto;
  flex: 1;
}
.custom-builder {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.builder-header {
  padding: 24px;
  border-bottom: 1px solid var(--border);
}
.builder-header h2 {
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}
.builder-header p { color: var(--text-secondary); }
.builder-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 500px;
}
.builder-left {
  padding: 24px;
  border-right: 1px solid var(--border);
  overflow-y: auto;
}
.builder-left h3 {
  font-size: 1rem;
  margin-bottom: 14px;
  color: var(--text-secondary);
}
.builder-right {
  padding: 24px;
  display: flex;
  flex-direction: column;
}
.builder-right h3 {
  font-size: 1rem;
  margin-bottom: 14px;
  color: var(--text-secondary);
}

.role-checkboxes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 24px;
}
.role-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
}
.role-checkbox:hover { border-color: var(--accent); }
.role-checkbox.selected {
  border-color: var(--accent);
  background: var(--accent-glow);
}
.role-checkbox input { display: none; }
.role-checkbox .check-icon {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-light);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: transparent;
  transition: all var(--transition);
  flex-shrink: 0;
}
.role-checkbox.selected .check-icon {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.role-checkbox .role-label { font-size: 0.9rem; }

.builder-options { margin-bottom: 20px; }
.builder-options h3 { margin-top: 4px; }
.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-group input, .form-group textarea { width: 100%; }

.btn-generate {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.3s;
}
.btn-generate:hover { opacity: 0.9; transform: translateY(-1px); }

.generated-prompt {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.88rem;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
  min-height: 300px;
}
.placeholder-text {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: inherit;
}
.builder-actions {
  margin-top: 14px;
  display: flex;
  justify-content: flex-end;
}
.btn-copy {
  background: var(--accent);
  color: #fff;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
}
.btn-copy:hover { background: var(--accent-hover); }

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--green);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 2000;
  opacity: 0;
  transition: all 0.3s;
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.3);
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    transform: translateX(-100%);
    z-index: 200;
    box-shadow: var(--shadow);
  }
  .sidebar.mobile-show { transform: translateX(0); }
  .menu-btn { display: block; }
  .builder-body { grid-template-columns: 1fr; }
  .builder-left { border-right: none; border-bottom: 1px solid var(--border); }
}
@media (max-width: 640px) {
  .cards-grid { grid-template-columns: 1fr; padding: 16px; }
  .search-box { width: 140px; }
  .role-checkboxes { grid-template-columns: 1fr; }
  .platform-btn span { display: none; }
  .platform-btn { padding: 7px 10px; }
}