:root {
  --primary-color: #4285f4;
  --primary-dark: #3367d6;
  --secondary-color: #34a853;
  --accent-color: #ea4335;
  --light-color: #f8f9fa;
  --dark-color: #202124;
  --gray-color: #5f6368;
  --border-radius: 8px;
  --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  max-width: 1600px;
  margin: 0 auto;
  padding: 20px;
  background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
  display: flex;
  min-height: 100vh;
  color: var(--dark-color);
}

h1 {
  text-align: center;
  color: var(--dark-color);
  margin-top: 0;
  font-weight: 500;
  font-size: 2rem;
}

h3 {
  margin-top: 0;
  color: var(--primary-dark);
  border-bottom: 2px solid var(--primary-color);
  padding-bottom: 8px;
}

#videoContainer {
  position: relative;
  width: 100%;
  max-width: 640px;
  margin: 20px auto;
  box-shadow: var(--box-shadow);
  border-radius: var(--border-radius);
  overflow: hidden;
  background-color: #000;
}

#videoElement {
  width: 100%;
  height: auto;
  display: block;
}

#canvasElement {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.controls {
  text-align: center;
  margin: 20px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

button {
  padding: 12px 20px;
  font-size: 16px;
  cursor: pointer;
  border: none;
  border-radius: var(--border-radius);
  background-color: var(--primary-color);
  color: white;
  transition: var(--transition);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  min-width: 120px;
  font-weight: 500;
}

button:hover:not(:disabled) {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

button:disabled {
  background-color: #cccccc;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background-color: var(--secondary-color);
}

.btn-secondary:hover:not(:disabled) {
  background-color: #2e8b47;
}

.btn-accent {
  background-color: var(--accent-color);
}

.btn-accent:hover:not(:disabled) {
  background-color: #d33b2c;
}

/* 优化文件选择器样式 */
.file-input-group input[type="file"] {
  margin: 5px 0;
  padding: 10px;
  width: 100%;
  border: 2px dashed #ddd;
  border-radius: var(--border-radius);
  background-color: #fff;
  font-size: 16px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  cursor: pointer;
}

.file-input-group input[type="file"]:hover {
  border-color: var(--primary-color);
  background-color: #f8f9fa;
}

.file-input-group input[type="file"]::-webkit-file-upload-button {
  padding: 8px 16px;
  border: none;
  border-radius: 4px;
  background-color: var(--primary-color);
  color: white;
  cursor: pointer;
  transition: var(--transition);
}

.file-input-group input[type="file"]::-webkit-file-upload-button:hover {
  background-color: var(--primary-dark);
}

#fileInput {
  margin: 10px 0;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: var(--border-radius);
  background-color: #fff;
  width: 100%;
  font-size: 16px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

#status,
#videoStatus {
  text-align: center;
  margin: 15px 0;
  padding: 15px;
  border-radius: var(--border-radius);
  background-color: white;
  font-weight: 500;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

#status.analysis-active,
#videoStatus.analysis-active {
  background-color: #e6f4ea;
  border-left: 4px solid var(--secondary-color);
}

#keypointsData {
  margin-top: 20px;
  padding: 20px;
  background-color: #fff;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.keypoint {
  display: inline-block;
  margin: 5px;
  padding: 8px 12px;
  background-color: #e8f0fe;
  border-radius: 20px;
  font-size: 14px;
  transition: var(--transition);
}

.keypoint:hover {
  background-color: var(--primary-color);
  color: white;
  transform: scale(1.05);
}

.loading {
  text-align: center;
  padding: 20px;
}

.spinner {
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-left-color: var(--primary-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto 15px;
}

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

.tab-container {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
  gap: 5px;
}

.tab {
  padding: 12px 24px;
  cursor: pointer;
  background-color: #e0e0e0;
  border: none;
  outline: none;
  transition: var(--transition);
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  font-weight: 500;
}

.tab.active {
  background-color: var(--primary-color);
  color: white;
  box-shadow: 0 -2px 6px rgba(0, 0, 0, 0.1);
}

.tab-content {
  display: none;
  animation: fadeIn 0.3s ease-in;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.video-progress-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 10px auto;
  max-width: 640px;
  padding: 0 10px;
}

.progress-bar {
  flex-grow: 1;
  margin: 0 10px;
  height: 8px;
  border-radius: 4px;
  background-color: #ddd;
  outline: none;
  -webkit-appearance: none;
}

.progress-bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--primary-color);
  cursor: pointer;
}

.progress-bar::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--primary-color);
  cursor: pointer;
  border: none;
}

#currentTime,
#totalTime {
  font-size: 14px;
  color: var(--gray-color);
  min-width: 40px;
  text-align: center;
}

/* 新增样式：右侧数据面板 */
#dataPanel {
  width: 500px;
  margin-left: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

#MoveDataContent {
  position: relative;
}

.panel-section {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 20px;
  transition: var(--transition);
}

.panel-section:hover {
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.action-buttons {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

#ActionList {
  width: 100%;
  min-height: 150px;
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: var(--border-radius);
  font-family: "Courier New", monospace;
  font-size: 14px;
  background-color: #f8f9fa;
  resize: vertical;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

#trajectoryInfo {
  min-height: 100px;
  padding: 15px;
  background-color: #f8f9fa;
  border-radius: var(--border-radius);
  font-family: "Courier New", monospace;
  font-size: 14px;
  white-space: pre-wrap;
  border: 1px solid #ddd;
}

.button-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

@media (max-width: 1200px) {
  body {
    flex-direction: column;
  }

  #dataPanel {
    width: 100%;
    margin-left: 0;
    max-height: none;
    margin-top: 20px;
  }

  .controls {
    flex-direction: column;
    align-items: center;
  }

  button {
    width: 100%;
    max-width: 300px;
  }
}

.comparison-container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 20px;
}

.video-section {
  flex: 1;
  min-width: 300px;
  border: 2px dashed transparent;
  transition: border-color 0.3s ease;
  padding: 10px;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.video-section.drag-over {
  border-color: var(--primary-color);
}

.video-wrapper {
  position: relative;
  width: 100%;
  margin-bottom: 15px;
  box-shadow: var(--box-shadow);
  border-radius: var(--border-radius);
  overflow: hidden;
  background-color: #000;
}

.video-wrapper video {
  width: 100%;
  height: auto;
  display: block;
}

.video-wrapper canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.similarity-container {

  text-align: center;
  margin-top: 20px;
  padding: 20px;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.similarity-score {
  font-size: 3rem;
  font-weight: bold;
  color: var(--primary-color);
  margin: 10px 0;
}

.similarity-meter {
  width: 100%;
  height: 30px;
  background-color: #e0e0e0;
  border-radius: 15px;
  overflow: hidden;
  margin: 20px 0;
}

.similarity-fill {
  height: 100%;
  background: linear-gradient(
    90deg,
    var(--accent-color),
    var(--secondary-color)
  );
  border-radius: 15px;
  transition: width 0.5s ease;
}

/* 新增的详细相似度样式 */
.detailed-similarity {
  margin: 20px 0;
  padding: 15px;
  background-color: #f8f9fa;
  border-radius: 10px;
}

.detailed-similarity h3 {
  margin-top: 0;
  color: #333;
}

.similarity-item {
  display: flex;
  justify-content: space-between;
  margin: 10px 0;
  padding: 8px 0;
  border-bottom: 1px solid #eee;
}

.similarity-label {
  font-weight: bold;
  color: #555;
}

.similarity-value {
  font-weight: bold;
  color: var(--primary-color);
}

.file-input-group {
  margin: 15px 0;
}

.file-input-group input {
  margin: 5px 0;
  padding: 8px;
  width: 100%;
}

.controls-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 15px 0;
  align-items: center;
}

/* 优化BPM输入框样式 */
.controls-group input[type="number"] {
  padding: 8px 12px;
  border: 2px solid #ddd;
  border-radius: var(--border-radius);
  font-size: 16px;
  width: 80px;
  text-align: center;
  transition: var(--transition);
}

.controls-group input[type="number"]:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

.controls-group label {
  font-weight: bold;
  color: var(--dark-color);
  margin-right: 8px;
}

.progress-container {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 10px 0;
}

.progress-bar {
  flex: 1;
  height: 10px;
}

.time-display {
  min-width: 40px;
  font-family: monospace;
}

.angle-data {
  text-align: left;
  margin-top: 15px;
  padding: 10px;
  background-color: #f8f9fa;
  border-radius: var(--border-radius);
}

.angle-data h4 {
  margin-top: 0;
  color: var(--primary-dark);
}

.angle-item {
  margin: 5px 0;
  padding: 3px 0;
  border-bottom: 1px solid #eee;
}

.limb-similarity-item {
  display: flex;
  justify-content: space-between;
  margin: 5px 0;
  padding: 3px 0;
  border-bottom: 1px solid #eee;
}

.limb-name {
  font-weight: bold;
}

.limb-similarity-value {
  color: var(--primary-color);
  font-weight: bold;
}

/* 添加游戏模式相关的样式 */
#gameModeContainer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  z-index: 1000;
  display: none;
}

#gameReferenceVideo {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#gameTargetVideoContainer {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 320px;
  height: 240px;
  border: 2px solid #fff;
  border-radius: 10px;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1001;
}

#gameTargetVideo {
  width: 100%;
  height: 100%;
}

#gameScoreContainer {
  position: absolute;
  top: 20px;
  left: 20px;
  background-color: rgba(0, 0, 0, 0.5);
  color: white;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 24px;
  z-index: 1001;
}

#gameWindowSimilarity {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(0, 0, 0, 0.5);
  color: white;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 20px;
  z-index: 1001;
}

#exitGameButton {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1002;
  background-color: #ff4d4d;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
}

#exitGameButton:hover {
  background-color: #ff3333;
}

/* 优化默认加载样式 */
.video-section {
  display: flex;
  flex-direction: column;
}

.video-wrapper::before {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #aaa;
  font-size: 18px;
  z-index: 1;
}

.video-wrapper video:not([src]):not([srcObject])::after {
  content: "请选择视频文件";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #aaa;
  font-size: 16px;
}

#referenceAngleData,
#targetAngleData,
#comparisonAngleData {
  min-height: 100px;
  color: #888;
}