.task-panel {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.task-panel-header {
  text-align: center;
  margin-bottom: 40px;
}

.task-panel-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0 0 16px 0;
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.task-panel-header p {
  font-size: 1.1rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 400;
}

.task-panel-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.counter-section {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.counter-section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 24px 0;
  color: white;
}

.counter-display {
  margin-bottom: 24px;
}

.counter-value {
  font-size: 4rem;
  font-weight: 700;
  color: white;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  display: inline-block;
  min-width: 120px;
}

.counter-controls {
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

.counter-button {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  outline: none;
}

.counter-button--decrease {
  background: rgba(255, 107, 107, 0.9);
  color: white;
}

.counter-button--decrease:hover {
  background: rgba(255, 107, 107, 1);
  transform: scale(1.05);
}

.counter-button--reset {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  width: auto;
  padding: 0 20px;
  border-radius: 24px;
  font-size: 0.9rem;
}

.counter-button--reset:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.05);
}

.counter-button--increase {
  background: rgba(107, 255, 107, 0.9);
  color: white;
}

.counter-button--increase:hover {
  background: rgba(107, 255, 107, 1);
  transform: scale(1.05);
}

.counter-button:active {
  transform: scale(0.95);
}

.counter-button:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.8);
  outline-offset: 2px;
}

.placeholder-section {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.placeholder-section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 24px 0;
  color: white;
  text-align: center;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.2s ease;
}

.feature-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 2rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  flex-shrink: 0;
}

.feature-text h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 4px 0;
  color: white;
}

.feature-text p {
  font-size: 0.9rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .task-panel-header h1 {
    font-size: 2rem;
  }
  
  .task-panel-content {
    gap: 24px;
  }
  
  .counter-section,
  .placeholder-section {
    padding: 24px;
  }
  
  .counter-value {
    font-size: 3rem;
  }
  
  .counter-controls {
    gap: 12px;
  }
  
  .counter-button {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .feature-list {
    gap: 16px;
  }
  
  .feature-item {
    padding: 12px;
  }
  
  .feature-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
  }
}