/**
 * 剪辑计划编辑器 — V21 原型 1:1 还原样式
 * 颜色：对齐全局V21设计系统，使用 var(--bg-primary)、var(--bg-secondary)、var(--primary) 等
 * 布局：3行（顶栏52 + 模式栏56 + 三栏主体flex）
 * 面板宽度：左240 / 右280
 * 按钮：对齐V21 Button组件风格
 * 字号：12px为主，标题13-14px
 */

/* ═══════════════════════════════════════
   根容器 — 全屏三行布局（V21浅色主题）
   ═══════════════════════════════════════ */

.ep-v8-root {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--bg-secondary, #f8fafc);
  color: var(--text-primary, #1e293b);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 12px;
  line-height: 1.5;
  overflow: hidden;
}

/* ═══════════════════════════════════════
   第1行：顶栏 52px（V21风格）
   ═══════════════════════════════════════ */

.ep-top-bar {
  height: 52px;
  min-height: 52px;
  background: var(--bg-primary, #ffffff);
  border-bottom: 1px solid var(--line, #e2e8f0);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  flex-shrink: 0;
}

.ep-top-bar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ep-logo {
  font-size: 16px;
  color: var(--primary, #6366f1);
  font-weight: 700;
}

.ep-app-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary, #6366f1);
}

.ep-divider {
  color: var(--text-muted, #cbd5e1);
  margin: 0 4px;
}

.ep-template-name {
  color: var(--text-muted, #64748b);
  font-size: 13px;
}

.ep-top-bar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 按钮 — V21风格 */
.ep-btn {
  height: 32px;
  padding: 0 16px;
  border-radius: var(--radius-sm, 14px);
  font-size: 13px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.ep-btn-primary {
  background: var(--gradient-primary);
  color: var(--text-inverse);
  box-shadow: 0 14px 26px rgba(79, 70, 229, 0.22);
  font-weight: 600;
}

.ep-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(79, 70, 229, 0.28);
}

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

.ep-btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.ep-btn-secondary {
  background: var(--bg-primary, #ffffff);
  color: var(--text-secondary);
  border: 1px solid var(--line, #e2e8f0);
  font-weight: 600;
}

.ep-btn-secondary:hover {
  border-color: var(--info-border);
  color: var(--primary-dark);
  background: var(--primary-soft);
}

.ep-btn-secondary:active {
  transform: scale(0.98);
}

.ep-btn-secondary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.ep-btn-sm {
  height: 28px;
  padding: 0 12px;
  font-size: 12px;
  border-radius: var(--radius-xs, 8px);
}

.ep-btn-danger {
  background: var(--danger, #ef4444);
  color: var(--text-inverse);
}

.ep-btn-danger:hover {
  background: color-mix(in srgb, var(--danger, #ef4444), white 20%);
}

.ep-btn-danger:active {
  transform: scale(0.96);
  background: color-mix(in srgb, var(--danger, #ef4444), black 10%);
}

.ep-btn-danger:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ═══════════════════════════════════════
   第2行：模式栏 56px — V21居中图标按钮风格
   ═══════════════════════════════════════ */

.ep-mode-bar {
  height: 56px;
  min-height: 56px;
  background: var(--bg-primary, #ffffff);
  border-bottom: 1px solid var(--line, #e2e8f0);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 20px;
  flex-shrink: 0;
}

.ep-mode-bar-label {
  font-size: 12px;
  color: var(--text-muted, #64748b);
  margin-right: 8px;
}

.ep-mode-btn {
  position: relative;
  padding: 8px 14px;
  background: var(--bg-primary, #ffffff);
  border: 1px solid var(--line, #e2e8f0);
  color: var(--text-secondary, #64748b);
  font-size: 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  border-radius: 10px;
  transition: all 0.2s ease;
  min-width: 64px;
}

.ep-mode-btn:hover {
  border-color: var(--primary-light, #a5b4fc);
  background: var(--primary-soft, #f8faff);
}

.ep-mode-btn.active {
  border-color: var(--primary, #6366f1);
  background: var(--primary-soft, #eef2ff);
}

.ep-mode-btn.active .ep-mode-label {
  color: var(--primary, #6366f1);
}

.ep-mode-icon {
  font-size: 18px;
  line-height: 1;
}

/* ═══════════════════════════════════════
   第3行：三栏主体
   ═══════════════════════════════════════ */

.ep-main-body {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

/* ─── 左栏 240px ─── */

.ep-left-panel {
  width: 240px;
  min-width: 240px;
  background: var(--bg-primary, #ffffff);
  border-right: 1px solid var(--line, #e2e8f0);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* 左栏标题 */
.ep-left-header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line, #e2e8f0);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.ep-left-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary, #64748b);
}

.ep-left-back-btn {
  font-size: 10px;
  color: var(--text-tertiary, #94a3b8);
  background: none;
  border: none;
  cursor: pointer;
}

.ep-left-back-btn:hover {
  color: var(--primary, #6366f1);
}

/* 搜索 */
.ep-search-wrap {
  padding: 10px 12px;
  border-bottom: 1px solid var(--bg-secondary, #f1f5f9);
  position: relative;
  flex-shrink: 0;
}

.ep-search-input {
  width: 100%;
  height: 36px;
  background: var(--bg-secondary, #f8fafc);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: var(--radius-xs, 8px);
  padding: 0 12px 0 36px;
  color: var(--text-primary, #1e293b);
  font-size: 12px;
  outline: none;
  transition: all 0.2s ease;
}

.ep-search-input::placeholder {
  color: var(--text-tertiary, #94a3b8);
}

.ep-search-input:focus {
  border-color: var(--primary, #6366f1);
  background: var(--bg-primary, #ffffff);
  box-shadow: 0 0 0 3px var(--primary-soft, #eef2ff);
}

.ep-search-icon {
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary, #94a3b8);
  font-size: 14px;
  pointer-events: none;
}

/* Chip 筛选 */
.ep-filter-chips {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--bg-secondary, #f1f5f9);
  flex-wrap: wrap;
  flex-shrink: 0;
}

.ep-filter-chip {
  padding: 4px 10px;
  border-radius: var(--radius-full, 9999px);
  font-size: 10px;
  background: var(--bg-secondary, #f8fafc);
  color: var(--text-tertiary, #94a3b8);
  border: 1px solid var(--border-color, #e2e8f0);
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
  line-height: 1.4;
}

.ep-filter-chip:hover {
  border-color: var(--primary, #6366f1);
  color: var(--text-secondary, #64748b);
}

.ep-filter-chip.active {
  border-color: var(--primary, #6366f1);
  color: var(--primary, #6366f1);
  background: var(--primary-soft, #eef2ff);
}

/* 左侧 Tab 切换 */
.ep-left-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color, #e2e8f0);
  background: var(--bg-secondary, #f8fafc);
}

.ep-left-tab {
  flex: 1;
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary, #64748b);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

.ep-left-tab:hover {
  color: var(--text-primary, #1e293b);
  background: var(--bg-primary, #ffffff);
}

.ep-left-tab.active {
  color: var(--primary, #6366f1);
  border-bottom-color: var(--primary, #6366f1);
  background: var(--bg-primary, #ffffff);
}

/* 素材 Tab 容器 */
.ep-assets-tab {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

.ep-assets-tab::-webkit-scrollbar {
  width: 6px;
}

.ep-assets-tab::-webkit-scrollbar-thumb {
  background: var(--border-color, #e2e8f0);
  border-radius: 3px;
}

/* 模板列表 */
.ep-template-list {
  flex: 1;
  overflow-y: auto;
  padding: 10px 12px;
}

.ep-template-list::-webkit-scrollbar {
  width: 6px;
}

.ep-template-list::-webkit-scrollbar-thumb {
  background: var(--border-color, #e2e8f0);
  border-radius: 3px;
}

.ep-template-card {
  background: var(--bg-primary, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.ep-template-card:hover {
  border-color: var(--primary-light, #a5b4fc);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.ep-template-card.active {
  border-color: var(--primary, #6366f1);
  background: var(--primary-soft, #eef2ff);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.15);
}

.ep-template-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.ep-template-card-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary, #1e293b);
}

.ep-template-card-mode {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: var(--radius-xs, 8px);
  background: var(--primary-soft, #eef2ff);
  color: var(--primary, #6366f1);
  font-weight: 500;
}

.ep-template-card-meta {
  display: flex;
  gap: 12px;
  font-size: 11px;
  color: var(--text-tertiary, #94a3b8);
  margin-bottom: 8px;
}

.ep-template-card-tags {
  display: flex;
  gap: 6px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.ep-template-tag {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: var(--radius-xs, 8px);
  background: var(--bg-secondary, #f8fafc);
  color: var(--text-secondary, #64748b);
}

/* Loading / Empty */
.ep-loading,
.ep-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
  color: var(--text-tertiary, #94a3b8);
  font-size: 12px;
  gap: 8px;
}

.ep-loading > svg,
.ep-empty > svg {
  width: 32px;
  height: 32px;
  color: var(--text-tertiary, #94a3b8);
  opacity: 0.5;
  animation: ep-skeleton-pulse 2s ease-in-out infinite;
}

/* ─── 中栏 flex-1 ─── */

.ep-center-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  background: var(--bg-secondary, #f8fafc);
}

/* 上半部：预览 + 封面 (320px) */
.ep-preview-area {
  height: 320px;
  min-height: 280px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 40px;
  padding: 20px;
  background: var(--bg-primary, #ffffff);
  border-bottom: 1px solid var(--line, #e2e8f0);
  flex-shrink: 0;
}

/* 手机模型预览 */
.ep-phone-preview {
  width: 150px;
  height: 267px;
  background: var(--color-gray-950);
  border-radius: 16px;
  border: 2px solid var(--ep-border, #1f1f30);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.ep-phone-status-bar {
  height: 20px;
  background: var(--color-gray-900);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  font-size: 9px;
  color: var(--ep-text-muted, #4b5563);
}

.ep-phone-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--ep-bg-card-hover, #1a1a2e), var(--ep-bg-deepest, #0a0a14));
  height: calc(100% - 20px);
  position: relative;
}

.ep-phone-play-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(108, 92, 231, 0.8);
  border: none;
  color: var(--text-inverse);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.ep-phone-play-btn:hover {
  background: var(--primary, #6366f1);
  transform: scale(1.1);
}

.ep-phone-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.2);
}

.ep-phone-progress-fill {
  height: 100%;
  background: var(--primary, #6366f1);
  transition: width 0.3s ease;
}

.ep-phone-clip-label {
  position: absolute;
  bottom: 8px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 9px;
  color: var(--ep-text-secondary, #9ca3af);
}

/* 标题/字幕实时预览叠加层 */
.ep-preview-title,
.ep-preview-subtitle {
  position: absolute;
  left: 4px;
  right: 4px;
  text-align: center;
  color: #fff;
  line-height: 1.3;
  pointer-events: none;
  z-index: 5;
  word-break: break-all;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ep-preview-title {
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
}

.ep-preview-subtitle {
  background: rgba(0, 0, 0, 0.55);
  padding: 2px 4px;
  border-radius: 3px;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* 封面预览 */
.ep-cover-preview {
  width: 150px;
  height: 267px;
  background: var(--ep-bg-card, #13131f);
  border-radius: 6px;
  border: 1px solid var(--ep-border, #1f1f30);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ep-cover-image {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--ep-bg-card-hover, #1a1a2e), var(--ep-bg-card, #13131f));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ep-text-muted, #4b5563);
  font-size: 11px;
}

.ep-cover-label {
  position: absolute;
  bottom: 8px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 9px;
  color: var(--ep-text-secondary, #9ca3af);
}

/* 封面 AI 按钮 */
.ep-cover-ai-btns {
  position: absolute;
  top: 8px;
  left: 4px;
  right: 4px;
  display: flex;
  gap: 4px;
}

.ep-cover-ai-btn {
  flex: 1;
  height: 22px;
  background: rgba(108, 92, 231, 0.7);
  border: none;
  border-radius: 4px;
  color: var(--text-inverse);
  font-size: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.ep-cover-ai-btn:hover {
  background: var(--primary-hover, #4f46e5);
}

.ep-cover-ai-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 封面方案按钮（竖排4个） */
.ep-cover-tags {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ep-cover-tag {
  padding: 6px 12px;
  border-radius: var(--radius-full, 9999px);
  font-size: 10px;
  background: var(--bg-secondary, #f8fafc);
  color: var(--text-tertiary, #94a3b8);
  border: 1px solid var(--border-color, #e2e8f0);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  height: auto;
}

.ep-cover-tag:hover {
  border-color: var(--primary, #6366f1);
  color: var(--primary, #6366f1);
}

.ep-cover-tag.active {
  background: var(--primary-soft, #eef2ff);
  color: var(--primary, #6366f1);
  border-color: var(--primary, #6366f1);
}

/* ─── 下半部：水平时间线（V21风格）─── */

.ep-timeline-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-primary, #ffffff);
  border-top: 1px solid var(--line, #e2e8f0);
  min-height: 0;
}

.ep-timeline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--bg-secondary, #f1f5f9);
  flex-shrink: 0;
}

.ep-timeline-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary, #64748b);
}

.ep-timeline-duration {
  font-size: 12px;
  color: var(--warning, #f59e0b);
  font-weight: 600;
}

.ep-timeline-actions {
  display: flex;
  gap: 6px;
}

.ep-timeline-action-btn {
  width: 28px;
  height: 28px;
  padding: 0;
  background: var(--bg-secondary, #f8fafc);
  border: 1px solid var(--line, #e2e8f0);
  border-radius: var(--radius-xs, 8px);
  color: var(--text-muted, #94a3b8);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ep-timeline-action-btn:hover {
  border-color: var(--primary, #6366f1);
  color: var(--primary, #6366f1);
  background: var(--primary-soft, #eef2ff);
}

/* 时间标尺 */
.ep-time-ruler {
  height: 24px;
  background: var(--bg-secondary, #f8fafc);
  border-bottom: 1px solid var(--bg-secondary, #f1f5f9);
  display: flex;
  align-items: flex-end;
  padding: 0 16px;
  overflow: hidden;
  flex-shrink: 0;
}

.ep-time-ruler-inner {
  display: flex;
  align-items: center;
  height: 100%;
  position: relative;
}

.ep-time-mark {
  position: absolute;
  font-size: 9px;
  color: var(--text-muted, #cbd5e1);
  bottom: 4px;
}

.ep-time-mark::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 1px;
  height: 6px;
  background: var(--border-color, #e2e2f0);
}

/* 水平片段轨道 — 带底色 */
.ep-clip-track {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  overflow-x: auto;
  overflow-y: hidden;
  background: var(--bg-primary, #ffffff);
  position: relative;
}

.ep-clip-track::-webkit-scrollbar {
  height: 6px;
}

.ep-clip-track::-webkit-scrollbar-thumb {
  background: var(--border-color, #e2e2e2);
  border-radius: 3px;
}

/* 水平片段卡片 — 统一高度96px、圆角、hover高亮 */
.ep-clip-card {
  width: 100px;
  min-width: 100px;
  height: 96px;
  background: var(--bg-primary, #ffffff);
  border: 1px solid var(--border-color, #e2e2e2);
  border-radius: var(--radius-sm, 14px);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.ep-clip-card:hover {
  border-color: var(--primary, #6366f1);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.ep-clip-card.selected {
  border-color: var(--primary, #6366f1);
  box-shadow: 0 0 0 2px var(--primary-soft, #eef2ff), 0 4px 12px rgba(99, 102, 241, 0.2);
}

.ep-clip-card.drag-over {
  border-color: var(--primary, #6366f1);
  background: var(--primary-soft, #eef2ff);
}

.ep-clip-card.dragging {
  opacity: 0.5;
}

.ep-clip-thumbnail {
  height: 52px;
  background: linear-gradient(135deg, var(--bg-secondary, #f8fafc), var(--border-light, #f1f5f9));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.ep-clip-info {
  padding: 6px 8px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.ep-clip-name {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-primary, #1e293b);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ep-clip-duration {
  font-size: 10px;
  color: var(--text-tertiary, #94a3b8);
}

.ep-clip-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.9);
  border: 2px solid var(--text-inverse);
  color: var(--text-inverse);
  font-size: 10px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  line-height: 1;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.ep-clip-card:hover .ep-clip-remove {
  display: flex;
}

/* 播放头竖线 */
.ep-playhead {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary, #6366f1);
  z-index: 10;
  pointer-events: none;
}

.ep-playhead::before {
  content: "";
  position: absolute;
  top: 0;
  left: -4px;
  width: 10px;
  height: 10px;
  background: var(--primary, #6366f1);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
}

/* 空轨道 */
.ep-track-empty {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary, #94a3b8);
  font-size: 12px;
  min-height: 96px;
}

/* 一镜到底提示 */
.ep-one-take-hint {
  padding: 6px 16px;
  background: var(--color-accent-50, #fffbeb);
  border-bottom: 1px solid var(--color-accent-100, #fef3c7);
  color: var(--accent-color, #f59e0b);
  font-size: 12px;
  font-weight: 500;
  font-size: 11px;
  text-align: center;
}

/* ─── 右栏 280px ─── */

.ep-right-panel {
  width: 280px;
  min-width: 280px;
  background: var(--bg-primary, #ffffff);
  border-left: 1px solid var(--line, #e2e8f0);
  overflow-y: auto;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.ep-right-panel::-webkit-scrollbar {
  width: 6px;
}

.ep-right-panel::-webkit-scrollbar-thumb {
  background: var(--line, #e2e8f0);
  border-radius: 3px;
}

/* 设置区块 */
.ep-settings-section {
  padding: 14px;
  border-bottom: 1px solid var(--bg-secondary, #f1f5f9);
}

.ep-section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary, #64748b);
  text-transform: uppercase;
  margin-bottom: 12px;
  margin-top: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.3px;
}

.ep-section-icon {
  font-size: 14px;
}

/* 表单字段 */
.ep-field {
  margin-bottom: 12px;
}

.ep-field-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary, #64748b);
  margin-bottom: 6px;
}

.ep-form-input,
.ep-form-select {
  width: 100%;
  height: 32px;
  background: var(--bg-secondary, #f8fafc);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: var(--radius-xs, 8px);
  padding: 0 10px;
  color: var(--text-primary, #1e293b);
  font-size: 12px;
  outline: none;
  transition: all 0.2s ease;
}

.ep-form-input:focus,
.ep-form-select:focus {
  border-color: var(--primary, #6366f1);
  background: var(--bg-primary, #ffffff);
  box-shadow: 0 0 0 3px var(--primary-soft, #eef2ff);
}

.ep-form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
}

/* Toggle 开关 */
.ep-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.ep-toggle-label {
  font-size: 12px;
  color: var(--text-primary, #1e293b);
  font-weight: 500;
}

.ep-toggle {
  width: 40px;
  height: 22px;
  background: var(--border-color, #e2e8f0);
  border-radius: 11px;
  position: relative;
  cursor: pointer;
  transition: background 0.2s ease;
  flex-shrink: 0;
}

.ep-toggle.active {
  background: var(--primary, #6366f1);
}

.ep-toggle-knob {
  width: 18px;
  height: 18px;
  background: var(--bg-primary);
  border-radius: 50%;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: left 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.ep-toggle.active .ep-toggle-knob {
  left: 20px;
}

/* 滑块 */
.ep-slider-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ep-slider {
  flex: 1;
  -webkit-appearance: none;
  height: 4px;
  background: var(--border-color, #e2e8f0);
  border-radius: 2px;
  outline: none;
}

.ep-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background: var(--primary, #6366f1);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(99, 102, 241, 0.3);
  border: 2px solid var(--text-inverse);
}

.ep-slider-value {
  font-size: 12px;
  color: var(--text-secondary, #64748b);
  min-width: 36px;
  text-align: right;
  font-weight: 500;
}

/* 样式按钮组 */
.ep-style-btns {
  display: flex;
  gap: 6px;
}

.ep-style-btn {
  width: 32px;
  height: 32px;
  background: var(--bg-primary, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: var(--radius-xs, 8px);
  color: var(--text-secondary, #64748b);
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  font-weight: 500;
}

.ep-style-btn:hover {
  border-color: var(--primary, #6366f1);
  color: var(--primary, #6366f1);
  background: var(--primary-soft, #eef2ff);
}

.ep-style-btn.active {
  background: var(--primary-soft, #eef2ff);
  border-color: var(--primary, #6366f1);
  color: var(--primary, #6366f1);
}

/* AI推荐按钮 */
.ep-ai-recommend-btn {
  width: 100%;
  height: 36px;
  padding: 0 12px;
  background: var(--gradient-primary, var(--gradient-primary));
  border: none;
  border-radius: var(--radius-xs, 8px);
  color: var(--text-inverse);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.ep-ai-recommend-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.ep-ai-recommend-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* 片段详情卡片 */
.ep-clip-detail {
  background: var(--bg-secondary, #f8fafc);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: var(--radius-sm, 14px);
  padding: 14px;
}

.ep-clip-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-light, #f1f5f9);
}

.ep-clip-detail-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary, #1e293b);
}

.ep-clip-detail-type {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: var(--radius-xs, 8px);
  background: var(--primary-soft, #eef2ff);
  color: var(--primary, #6366f1);
  font-weight: 500;
}

.ep-clip-detail-field {
  margin-bottom: 10px;
}

.ep-clip-detail-label {
  font-size: 11px;
  color: var(--text-tertiary, #94a3b8);
  margin-bottom: 4px;
  font-weight: 500;
}

.ep-clip-detail-value {
  font-size: 12px;
  color: var(--text-primary, #1e293b);
  font-weight: 500;
}

.ep-clip-detail-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.ep-duration-input {
  width: 70px;
  height: 28px;
  background: var(--bg-primary, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: var(--radius-xs, 8px);
  padding: 0 8px;
  color: var(--text-primary, #1e293b);
  font-size: 12px;
  outline: none;
  text-align: center;
  font-weight: 500;
  transition: all 0.2s ease;
}

.ep-duration-input:focus {
  border-color: var(--primary, #6366f1);
  box-shadow: 0 0 0 3px var(--primary-soft, #eef2ff);
}

/* ═══════════════════════════════════════
   底栏 — V21已移除，内容移到顶栏
   ═══════════════════════════════════════ */

.ep-status-bar {
  display: none;
}

/* ═══════════════════════════════════════
   弹窗补充样式（V21浅色主题）
   ═══════════════════════════════════════ */

.ep-modal-field {
  margin-bottom: 16px;
}

.ep-modal-field label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary, #1e293b);
  margin-bottom: 6px;
}

.ep-modal-info {
  padding: 12px 14px;
  background: var(--bg-secondary, #f8fafc);
  border-radius: var(--radius-xs, 8px);
  font-size: 12px;
  color: var(--text-secondary, #64748b);
  margin-top: 8px;
  border: 1px solid var(--border-color, #e2e8f0);
}

/* 生成弹窗 */
.ep-gen-setup {
  padding: 8px 0;
}

.ep-gen-field-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary, #1e293b);
  margin-bottom: 8px;
}

.ep-gen-duration-input {
  width: 100%;
  height: 40px;
  background: var(--bg-primary, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: var(--radius-xs, 8px);
  padding: 0 12px;
  color: var(--text-primary, #1e293b);
  font-size: 14px;
  outline: none;
  margin-bottom: 12px;
  transition: all 0.2s ease;
}

.ep-gen-duration-input:focus {
  border-color: var(--primary, #6366f1);
  box-shadow: 0 0 0 3px var(--primary-soft, #eef2ff);
}

.ep-gen-estimate {
  font-size: 12px;
  color: var(--text-secondary, #64748b);
  padding: 12px 14px;
  background: var(--bg-secondary, #f8fafc);
  border-radius: var(--radius-xs, 8px);
  border: 1px solid var(--border-color, #e2e8f0);
}

.ep-gen-progress {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 0;
  gap: 20px;
}

.ep-gen-progress-ring-wrap {
  position: relative;
  width: 120px;
  height: 120px;
}

.ep-gen-progress-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ep-gen-progress-ring-bg {
  fill: none;
  stroke: var(--border-color, #e2e8f0);
  stroke-width: 8;
}

.ep-gen-progress-ring-fill {
  fill: none;
  stroke: var(--primary, #6366f1);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.5s ease, stroke 0.3s;
}

.ep-gen-progress-pct {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary, #1e293b);
}

.ep-gen-step-text {
  font-size: 14px;
  color: var(--text-primary, #1e293b);
  font-weight: 500;
}

.ep-gen-progress-bar {
  width: 100%;
  height: 6px;
  background: var(--border-color, #e2e8f0);
  border-radius: 3px;
  overflow: hidden;
}

.ep-gen-progress-bar-fill {
  height: 100%;
  background: var(--primary, #6366f1);
  border-radius: 3px;
  transition: width 0.5s ease;
}

.ep-gen-task-id {
  font-size: 11px;
  color: var(--text-tertiary, #94a3b8);
  font-family: monospace;
}

.ep-gen-result {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 0;
  gap: 12px;
}

.ep-gen-result-icon {
  font-size: 56px;
}

.ep-gen-result-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary, #1e293b);
}

.ep-gen-result-msg {
  font-size: 13px;
  color: var(--text-secondary, #64748b);
}

.ep-gen-result-msg--error {
  color: var(--danger, #ef4444);
}

.ep-gen-result-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.ep-btn-primary:active {
  background: var(--primary-dark, #4338ca);
  transform: scale(0.97);
}
.ep-btn-secondary:active {
  background: var(--bg-secondary, #f8fafc);
  border-color: var(--primary, #6366f1);
  color: var(--primary, #6366f1);
}
.ep-btn-danger:active {
  background: var(--error-color);
  transform: scale(0.97);
}

.ep-btn-danger:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.ep-btn-sm:active {
  transform: scale(0.96);
  opacity: 0.85;
}

.ep-btn-sm:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.ep-cover-ai-btn:active {
  background: var(--primary-dark, #4338ca);
  transform: scale(0.96);
}
.ep-filter-chip:active {
  transform: scale(0.95);
  background: var(--primary-soft, #eef2ff);
}
.ep-cover-tag:active {
  transform: scale(0.96);
  background: var(--primary-soft, #eef2ff);
}
.ep-timeline-action-btn:active {
  background: var(--primary-soft, #eef2ff);
  transform: scale(0.96);
}

.ep-timeline-action-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.ep-style-btn:active {
  background: var(--primary-soft, #eef2ff);
  transform: scale(0.95);
}
.ep-ai-recommend-btn:active {
  opacity: 0.8;
  transform: scale(0.98);
}
.ep-mode-btn:active {
  background: rgba(108, 92, 231, 0.15);
}

/* 底栏链接按钮 */
.ep-status-link {
  color: var(--ep-accent, #6c5ce7);
  cursor: pointer;
  background: none;
  border: none;
  font-size: 11px;
  padding: 2px 4px;
  border-radius: 3px;
  transition: color 0.2s, background 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.ep-status-link:hover {
  color: var(--ep-accent-hover, #7c6cf7);
  background: var(--ep-accent-soft, rgba(108, 92, 231, 0.12));
}

.ep-status-link:active {
  color: var(--primary-dark);
}


/* Skeleton loading */
@keyframes ep-skeleton-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

.ep-skeleton {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 8px;
}

.ep-skeleton-item {
  height: 48px;
  background: var(--bg-secondary, #f8fafc);
  border-radius: var(--radius-sm, 14px);
  animation: ep-skeleton-pulse 1.5s ease-in-out infinite;
}

.ep-skeleton-item--header {
  height: 14px;
  width: 60%;
}

.ep-skeleton-item--meta {
  height: 10px;
  width: 40%;
}

.ep-skeleton-item--tag {
  height: 18px;
  width: 80%;
}
/* ═══ 片段属性面板 — 补充样式 ═══ */
.ep-clip-detail-unit {
  font-size: var(--font-size-xs, 11px);
  color: var(--text-tertiary, #94a3b8);
  margin-left: 2px;
}

.ep-clip-detail-linked {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary, #6366f1);
  font-size: 12px;
}

.ep-clip-detail-linked::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 12px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236366f1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71'/%3E%3Cpath d='M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  flex-shrink: 0;
}

/* ═══ 预览区 — 补充样式 ═══ */
.ep-phone-empty-hint {
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-xs, 11px);
}

.ep-cover-icon {
  font-size: 24px;
  line-height: 1;
}

/* ═══ 素材面板 — 补充样式 ═══ */
.ep-media-panel-inner {
  position: relative;
}

/* ═══ 生成历史弹窗 — 补充样式 ═══ */
.ep-gh-modal {
  width: 520px;
  max-width: 95vw;
}

.ep-gh-body {
  max-height: 400px;
  overflow-y: auto;
}

.ep-gh-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  color: var(--text-tertiary, #94a3b8);
  font-size: var(--font-size-sm, 13px);
}

.ep-gh-table {
  width: 100%;
  border-collapse: collapse;
}

.ep-gh-table-header-row {
  border-bottom: 1px solid var(--border-color, #e2e8f0);
  text-align: left;
}

.ep-gh-th {
  padding: 10px 12px;
  font-size: var(--font-size-xs, 11px);
  color: var(--text-secondary, #64748b);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ep-gh-table-row {
  border-bottom: 1px solid var(--border-light, #f1f5f9);
  transition: background 0.2s ease;
}

.ep-gh-table-row:hover {
  background: var(--bg-secondary, #f8fafc);
}

.ep-gh-td {
  padding: 10px 12px;
  font-size: var(--font-size-sm, 13px);
  color: var(--text-primary, #1e293b);
}

.ep-gh-td-id {
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: var(--font-size-xs, 11px);
  color: var(--text-secondary, #64748b);
}

.ep-gh-td-time {
  color: var(--text-tertiary, #94a3b8);
  font-size: var(--font-size-xs, 11px);
}

.ep-gh-status-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full, 9999px);
  font-size: var(--font-size-xs, 11px);
  line-height: 1.4;
  font-weight: 500;
}

/* ═══ 生成历史弹窗 — 基础 Modal 结构 ═══ */
.ep-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1050;
  display: grid;
  place-items: center;
  background: var(--bg-overlay, rgba(15, 23, 42, 0.45));
  animation: ep-fade-in 0.2s ease;
  backdrop-filter: blur(4px);
}

@keyframes ep-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.ep-modal {
  background: var(--bg-primary, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: var(--radius-lg, 24px);
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.15);
  animation: ep-scale-in 0.2s ease-out;
  overflow: hidden;
}

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

.ep-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-light, #f1f5f9);
}

.ep-modal-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary, #1e293b);
}

.ep-modal-close {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: none;
  border-radius: var(--radius-xs, 8px);
  background: transparent;
  color: var(--text-secondary, #64748b);
  font-size: 18px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.ep-modal-close:hover {
  background: var(--bg-secondary, #f8fafc);
  color: var(--text-primary, #1e293b);
}

.ep-modal-close:active {
  transform: scale(0.92);
  background: var(--border-color, #e2e8f0);
}

.ep-modal-body {
  padding: 20px 24px;
}

.ep-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--border-light, #f1f5f9);
}

/* 状态标签变体 */
.ep-gh-status-tag--completed {
  background: var(--success-soft);
  color: var(--success-color);
}

.ep-gh-status-tag--failed {
  background: var(--error-soft);
  color: var(--error-color);
}

.ep-gh-status-tag--rendering {
  background: var(--info-soft);
  color: var(--info-color);
}

.ep-gh-status-tag--default {
  background: var(--bg-secondary);
  color: var(--text-tertiary);
}

/* 空状态增强 */
.ep-gh-empty {
  flex-direction: column;
  gap: 8px;
  text-align: center;
  min-height: 80px;
}