/* ===== 联系我们页面特定样式 ===== */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 60px;
  /* 优化网格布局性能 */
  will-change: transform;
}

.contact-info, .contact-form {
  background: var(--bg-white);
  padding: 40px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-fast);
  /* 启用硬件加速 */
  transform: translateZ(0);
  will-change: transform;
}

.contact-info:hover, .contact-form:hover {
  transform: translateY(-5px);
}

.contact-info h2, .contact-form h2 {
  font-size: 1.8rem;
  margin-bottom: 25px;
  color: var(--text-dark);
  text-align: center;
  position: relative;
  padding-bottom: 15px;
  /* 优化文本渲染 */
  text-rendering: optimizeLegibility;
}

.contact-info h2::after, .contact-form h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
  will-change: transform;
}

.contact-item {
  margin-bottom: 20px;
  padding: 20px;
  background: var(--bg-light);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  border-left: 4px solid var(--primary-color);
  /* 优化动画性能 */
  will-change: transform, box-shadow;
  transform: translateZ(0);
}

.contact-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.contact-item h3 {
  color: var(--primary-color);
  margin-bottom: 10px;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
}

.contact-item p {
  color: var(--text-light);
  line-height: 1.6;
  /* 优化文本渲染 */
  text-rendering: optimizeLegibility;
}

.contact-item p:first-of-type {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 5px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #e1e5e9;
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: all var(--transition-fast);
  background-color: var(--bg-white);
  /* 优化表单元素渲染 */
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  transform: translateZ(0);
  will-change: border-color, box-shadow;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(187, 100, 91, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
  font-family: inherit;
}

.submit-btn {
  width: 100%;
  padding: 14px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-soft);
  /* 优化按钮动画性能 */
  will-change: transform, box-shadow;
  transform: translateZ(0);
}

.submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

/* ===== 常见问题区域 ===== */
.faq-section {
  background: var(--bg-white);
  padding: 60px 40px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  margin-top: 60px;
  /* 优化布局性能 */
  transform: translateZ(0);
}

.faq-section h2 {
  text-align: center;
  font-size: 2.2rem;
  margin-bottom: 40px;
  color: var(--text-dark);
  position: relative;
  padding-bottom: 15px;
  /* 优化文本渲染 */
  text-rendering: optimizeLegibility;
}

.faq-section h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
  will-change: transform;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  /* 优化网格布局性能 */
  will-change: transform;
}

.faq-item {
  padding: 25px;
  background: var(--bg-light);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  border-top: 4px solid var(--secondary-color);
  /* 优化动画性能 */
  will-change: transform, box-shadow;
  transform: translateZ(0);
}

.faq-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-soft);
}

.faq-item h3 {
  margin-bottom: 15px;
  color: var(--text-dark);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
}

.faq-item h3::before {
  content: '❓';
  margin-right: 10px;
  font-size: 1.2rem;
}

.faq-item p {
  color: var(--text-light);
  line-height: 1.6;
  /* 优化文本渲染 */
  text-rendering: optimizeLegibility;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .contact-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-info, .contact-form {
    padding: 25px;
  }
  
  .faq-section {
    padding: 40px 25px;
  }
  
  /* 移动端性能优化 */
  .contact-content,
  .faq-grid {
    will-change: auto;
  }
}

/* 禁用动画的用户偏好 */
@media (prefers-reduced-motion: reduce) {
  .contact-info,
  .contact-form,
  .contact-item,
  .faq-item,
  .submit-btn,
  .form-group input,
  .form-group select,
  .form-group textarea {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  
  .contact-info:hover,
  .contact-form:hover,
  .contact-item:hover,
  .faq-item:hover,
  .submit-btn:hover {
    transform: none !important;
  }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  .contact-item,
  .faq-item {
    border-left-width: 6px;
    border-top-width: 6px;
  }
  
  .contact-info h2::after,
  .contact-form h2::after,
  .faq-section h2::after {
    height: 4px;
  }
}