:root {
  --进度条颜色-已填充: rgb(41, 126, 78);
  --进度条颜色-未填充: rgba(224, 224, 224, 0.85);
  --拇指宽度: 16px;
  --primary-color: #2a978c;
  --secondary-color: #4a90e2;
  --background-color: #1a1a1a;
  --panel-bg: rgba(255, 255, 255, 0.05);
  --border-color: rgba(255, 255, 255, 0.125);
  --text-color: #ffffff;
  --text-secondary: #cccccc;
}

.总区 {
  padding: 150px min(1vw, 150px) 0;
}

.展示区 {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: max(900px, calc(100vh - 200px));
  min-height: 600px;
  gap: 20px;
  padding: 20px;
  box-sizing: border-box;
}

.main-container {
  display: flex;
  justify-content: center;
  gap: 20px;
  min-height: 0;
}

.canvas-container {
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 12px;
  position: relative;
}

#bezierCanvas {
  max-width: 100%;
  max-height: 100%;
  border-radius: 8px;
  background: #1e1e1e;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.settings-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 400px;
  background: var(--panel-bg);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  padding: 20px;
}

.code-display {
  border-radius: 8px;
  padding: 15px 0;
  position: relative;
}

.code-display h3 {
  margin: 0 0 10px 0;
  color: var(--text-color);
  font-size: 16px;
  font-weight: 500;
}

#cubicBezierCode {
  display: block;
  background: #2d3748;
  color: #68d391;
  padding: 12px;
  border-radius: 6px;
  font-family: "JetBrains Mono", "Consolas", "Monaco", monospace;
  font-size: 14px;
  border: 1px solid #4a5568;
  line-height: 1.4;
}

#cubicBezierCode .function-name {
  color: #68d391;
}

#cubicBezierCode .parentheses {
  color: #e2e8f0;
}

#cubicBezierCode .number {
  color: #fbb6ce;
}

#cubicBezierCode .number.first-point {
  color: #90cdf4;
}

#cubicBezierCode .number.second-point {
  color: #fbb6ce;
}

#cubicBezierCode .comma {
  color: #aaaaaa;
}

.copy-btn {
  position: absolute;
  top: 15px;
  right: 0;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 4px;
  padding: 6px 10px;
  cursor: url("/Images/Common/鼠标-指向.cur"), pointer;
  transition: background 0.3s ease;
  font-size: 12px;
}

.copy-btn:hover {
  background: #1f7a6b;
}

.animation-controls {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.duration-input {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.duration-input label {
  color: var(--text-color);
  font-size: 14px;
  font-weight: 500;
}

.duration-input-container {
  display: flex;
  align-items: center;
  gap: 8px;
}

.duration-input input {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--text-color);
  font-size: 14px;
  flex: 1;
  font-family: "JetBrains Mono", "Consolas", "Monaco", monospace;
  box-sizing: border-box;
  text-align: center;
}

.duration-input input:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* 隐藏输入框的默认增减按钮 */
.duration-input input::-webkit-outer-spin-button,
.duration-input input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.duration-input input[type="number"] {
  -moz-appearance: textfield;
}

.duration-btn {
  background: var(--secondary-color);
  color: white;
  border: none;
  border-radius: 4px;
  width: 32px;
  height: 32px;
  cursor: url("/Images/Common/鼠标-指向.cur"), pointer;
  transition: background 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
}

.duration-btn:hover {
  background: #357abd;
}

.duration-btn:active {
  background: #2a5f8a;
}

.duration-btn:disabled {
  background: #666666;
  cursor: not-allowed;
}

.play-btn {
  background: var(--secondary-color);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 500;
  cursor: url("/Images/Common/鼠标-指向.cur"), pointer;
  transition: background 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  margin-top: auto;
}

.play-btn:hover {
  background: #357abd;
}

.preset-controls {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.preset-controls h3 {
  margin: 0;
  color: var(--text-color);
  font-size: 16px;
  font-weight: 500;
}

.preset-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preset-btn {
  background: rgba(255, 255, 255, 0.075);
  color: var(--text-color);
  border: 2px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 12px;
  cursor: url("/Images/Common/鼠标-指向.cur"), pointer;
  transition: all 125ms ease;
  text-align: left;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.preset-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--primary-color);
}

.preset-btn.active {
  border-color: var(--primary-color);
  background: rgba(42, 151, 140, 0.2);
}

.preset-btn .preset-name {
  font-weight: 500;
  font-size: 16px;
  font-family: "JetBrains Mono", "Consolas", "Monaco", monospace;
}

.preset-btn .preset-code {
  font-family: "Google Sans Code", "JetBrains Mono", "Consolas", "Monaco", monospace;
  font-size: 14px;
  color: var(--text-secondary);
  opacity: 0.8;
}

.preset-btn .preset-code .function-name {
  color: #68d391;
  font-family: "JetBrains Mono", "Consolas", "Monaco", monospace;
}

.preset-btn .preset-code .parentheses {
  color: #e2e8f0;
}

.preset-btn .preset-code .number.first-point {
  color: #90cdf4;
}

.preset-btn .preset-code .number.second-point {
  color: #fbb6ce;
}

.preset-btn .preset-code .comma {
  color: #aaaaaa;
}

/* 轴标签颜色 */
.axis-label {
  font-family: "JetBrains Mono", "Consolas", "Monaco", monospace;
}

.axis-label .position-text {
  color: #90cdf4; /* 蓝色，对应第一个坐标点 */
}

.axis-label .time-text {
  color: #fbb6ce; /* 粉色，对应第二个坐标点 */
}

.animation-demo {
  height: 120px;
  background: linear-gradient(135deg, var(--panel-bg) 0%, rgba(255, 255, 255, 0.05) 100%);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  padding: 20px;
  margin: 0 auto;
  position: relative;
  width: min(1200px, 95vw);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.animation-demo::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.02) 50%, transparent 100%);
  pointer-events: none;
}

.demo-element {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-color) 0%, #1f7a6b 100%);
  border-radius: 50%;
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  transition: none;
  box-shadow: 0 4px 12px rgba(42, 151, 140, 0.3);
  border: 2px solid rgba(255, 255, 255, 0.1);
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .main-container {
    flex-direction: column;
  }

  .settings-container {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .展示区 {
    height: calc(100vh - 150px);
    padding: 15px;
  }

  .main-container {
    gap: 15px;
  }

  .canvas-container,
  .settings-container {
    padding: 15px;
  }
}