/* ====== Banner高级悬停效果 ====== */
  .banner-div {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
    margin-bottom: 50px; /* 增加下边距防止重叠 */
  }
  
  .banner-image img {
    transition: all 0.8s cubic-bezier(0.19, 1, 0.22, 1);
    transform: scale(1);
    width: 100%;
    filter: brightness(0.95);
  }
  
  .banner-div:hover .banner-image img {
    transform: scale(1.05);
    filter: brightness(1.05);
  }
  
  .banner-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 2;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s cubic-bezier(0.19, 1, 0.22, 1) 0.3s;
  }
  
  .banner-div:hover .banner-content {
    opacity: 1;
    transform: translateY(0);
  }
  
  .banner-content p {
    text-align: center;
    margin-bottom: 8px;
    transition: all 0.6s ease 0.4s;
    transform: translateY(30px);
    opacity: 0;
  }
  
  .banner-div:hover .banner-content p {
    transform: translateY(0);
    opacity: 1;
  }
  
  .banner-content p:first-child {
    transition-delay: 0.4s;
  }
  
  .banner-content p:last-child {
    transition-delay: 0.5s;
  }
  
  /* ====== 卡片悬停效果优化 ====== */
  .topx-item > div {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
    height: 100%;
    padding: 30px;
    background: white;
  }
  
  .topx-item:hover > div {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
  }
  
  .topx-item > div::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 50px;
    height: 50px;
    background: #3498db;
    border-radius: 50%;
    opacity: 0.1;
    transition: all 0.6s ease;
  }
  
  .topx-item:hover > div::before {
    transform: scale(5);
    opacity: 0.05;
  }
  
  .topx-item i {
    font-size: 48px;
    color: #3498db;
    margin-bottom: 15px;
    transition: all 0.4s ease;
  }
  
  .topx-item:hover i {
    transform: scale(1.2);
    color: #e74c3c;
  }
  
  .topx-item b {
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
    margin-bottom: 15px;
  }
  
  .topx-item b::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: #3498db;
    transition: width 0.5s ease;
  }
  
  .topx-item:hover b::after {
    width: 100%;
    background: #e74c3c;
  }
  
  /* ====== 案例展示悬停效果 ====== */
  .case-item > a {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    display: block;
  }
  
  .case-item:hover > a {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
  }
  
  .case-item img {
    transition: all 0.7s ease;
    transform: scale(1);
  }
  
  .case-item:hover img {
    transform: scale(1.08);
  }
  
  .case-item span > span {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 15px;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 100%);
    color: white;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.5s ease;
  }
  
  .case-item:hover span > span {
    transform: translateY(0);
    opacity: 1;
  }
  
  /* ====== 合作伙伴悬停效果 ====== */
  .join-list li {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
  }
  
  .join-list li:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  }
  
  .join-list li img {
    transition: all 0.6s ease;
    filter: grayscale(0.8);
  }
  
  .join-list li:hover img {
    transform: scale(1.1);
    filter: grayscale(0);
  }
  
  /* ====== 表单悬停效果 ====== */
  .tact-form input {
    transition: all 0.4s ease;
    border: 1px solid #e0e0e0;
  }
  
  .tact-form input:hover {
    border-color: #3498db;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.2);
  }
  
  .tact-form button {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: #3498db;
  }
  
  .tact-form button:hover {
    background: #2c3e50;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(52, 152, 219, 0.3);
  }
  
  /* ====== 新增：解决重叠问题 ====== */
  .banner {
    margin-bottom: 0; /* 移除默认外边距 */
  }
  
  .topx {
    margin-top: 60px; /* 增加顶部外边距 */
  }
  
  @media (max-width: 768px) {
    .topx {
      margin-top: -50px; /* 移动端减少间距 */
    }
  }