/* === 全局重置 === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', 'PingFang SC', Roboto, system-ui, sans-serif;
}

body {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  min-height: 100vh;
  padding: 20px;
  color: #fff;
}

/* === 主容器 === */
.container {
  max-width: 1400px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* === 标题区域 === */
h1 {
  font-size: 2.5em;
  margin-bottom: 24px;
  background: linear-gradient(45deg, #fff, #e94560);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 20px rgba(233, 69, 96, 0.3);
  letter-spacing: 2px;
}

/* === 两列布局 === */
.main-layout {
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  gap: 20px;
  margin-top: 20px;
}

/* === 左侧面板通用样式 === */
.left-panel, .right-panel {
  background: rgba(10, 10, 20, 0.6);
  border-radius: 20px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(5px);
}

/* === 素材分类标题 === */
.left-panel h3 {
  color: #e94560;
  margin: 16px 0 12px 0;
  font-size: 1.2em;
  letter-spacing: 1px;
  border-left: 4px solid #e94560;
  padding-left: 12px;
}

.left-panel h3:first-of-type {
  margin-top: 0;
}

/* === 素材网格 === */
.material-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 10px;
}

/* === 素材项 === */
.material-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 10px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  color: #fff;
  font-size: 0.9em;
}

.material-item:hover {
  background: rgba(233, 69, 96, 0.2);
  border-color: #e94560;
  transform: translateY(-2px);
}

/* === 中间画布区域 === */
.canvas-area {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 20px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* === 画布 === */
#mainCanvas {
  width: 100%;
  max-width: 800px;
  aspect-ratio: 16/9;
  background: #0a0a14;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  border: 2px solid rgba(233, 69, 96, 0.3);
  cursor: crosshair;
}

/* === 画布控制栏 === */
.canvas-controls {
  margin-top: 16px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* === 按钮样式 === */
.btn {
  background: linear-gradient(45deg, #2a1a3a, #1a1a2e);
  border: 1px solid #533483;
  color: #fff;
  padding: 10px 24px;
  border-radius: 30px;
  font-size: 0.95em;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  letter-spacing: 0.5px;
}

.btn:hover {
  background: linear-gradient(45deg, #3a2a4a, #2a1a3a);
  border-color: #e94560;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(233, 69, 96, 0.3);
}

.btn-primary {
  background: linear-gradient(45deg, #e94560, #533483);
  border-color: #e94560;
  font-weight: 600;
}

.btn-primary:hover {
  background: linear-gradient(45deg, #ff5570, #634393);
  box-shadow: 0 6px 20px rgba(233, 69, 96, 0.5);
}

/* === 右侧面板 === */
.right-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* === 场景列表 === */
.scene-list {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
  padding: 12px;
  min-height: 120px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.scene-item {
  background: rgba(233, 69, 96, 0.1);
  border: 1px solid #533483;
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.scene-item:hover {
  background: rgba(233, 69, 96, 0.2);
  border-color: #e94560;
}

.scene-item.active {
  background: rgba(233, 69, 96, 0.3);
  border-color: #e94560;
  box-shadow: 0 0 15px rgba(233, 69, 96, 0.3);
}

/* === 时间轴 === */
.timeline {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 16px;
  padding: 16px;
  margin-top: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.timeline h3 {
  color: #e94560;
  margin-bottom: 12px;
  font-size: 1.1em;
}

.timeline-controls {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.frames-container {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding: 12px 0;
  min-height: 100px;
}

.frame-thumb {
  min-width: 120px;
  height: 68px;
  background: #0f0f1a;
  border: 2px solid #533483;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.8em;
  color: #aaa;
  position: relative;
}

.frame-thumb:hover {
  border-color: #e94560;
  transform: scale(1.05);
}

.frame-thumb.active {
  border-color: #e94560;
  background: rgba(233, 69, 96, 0.2);
  box-shadow: 0 0 15px rgba(233, 69, 96, 0.3);
}

.frame-index {
  font-size: 1.2em;
  font-weight: bold;
  color: #e94560;
  margin-bottom: 4px;
}

/* === 预览模式样式 === */
.preview-mode .left-panel,
.preview-mode .right-panel,
.preview-mode .timeline,
.preview-mode .canvas-controls .btn:not(#exitPreviewBtn):not(#playPreviewBtn):not(#pausePreviewBtn):not(#stopPreviewBtn) {
  display: none !important;
}

.preview-mode .canvas-area {
  grid-column: 1 / -1;
  justify-content: center;
  min-height: 80vh;
}

.preview-mode #mainCanvas {
  max-width: 1200px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.preview-mode .preview-controls {
  display: flex !important;
  gap: 12px;
  margin-top: 20px;
  justify-content: center;
}

/* === 分享面板样式 === */
.share-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #1a1a2e;
  border: 2px solid #e94560;
  border-radius: 24px;
  padding: 30px;
  z-index: 1000;
  min-width: 400px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(20px);
}

.share-panel h3 {
  color: #e94560;
  margin-bottom: 20px;
  font-size: 1.5em;
}

.share-url {
  background: #0a0a14;
  border: 1px solid #533483;
  border-radius: 12px;
  padding: 12px;
  margin: 15px 0;
  word-break: break-all;
  font-size: 0.9em;
  color: #fff;
  max-height: 100px;
  overflow-y: auto;
}

.share-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* === 遮罩层 === */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  z-index: 999;
}

/* === 工具类 === */
.hidden {
  display: none !important;
}

/* === canvas-asset（来自原来文件，保留） === */
.canvas-asset:hover {
  transform: scale(1.1);
}

.canvas-asset.selected {
  outline: 2px dashed #e94560;
  outline-offset: 4px;
}

/* === 滚动条样式（来自原来文件，保留） === */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #0f0f1a;
}

::-webkit-scrollbar-thumb {
  background: #533483;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #e94560;
}