body { font-family: 'Microsoft YaHei', Arial, sans-serif; color: #fff; }
 body {
      margin: 0;
      background: #fff;
      font-family: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
      color: #222;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }
    .bg-section {
      width: 100%;
      background: #fff;
    }
    .bg1{
      background: url('../images/header_bg.png') top center/100% auto no-repeat;
      width: 100%;
    }
    /* 移动端全屏样式 */
@media screen and (max-width: 768px) {
  .bg1 {
    background: url('../images/header_bg.png') center center/cover no-repeat;
    width: 100vw;
    height: 100vh;
    min-height: 100vh;
  }
  .nav-logo img{margin-left:0 !important}
}
 
    .nav {
      width: 80%;
      display: flex;
      align-items: center;
      justify-content: flex-start;
      padding: 0 4vw;
      height: 56px;
      position: relative;
      z-index: 10;
    }
    .nav-logo img {
      height: 28px;
      vertical-align: middle;
      margin-left: 200px;
    }
    .nav-menu {
      display: flex;
      gap: 32px;
      list-style: none;
      margin: 0;
      padding: 0;
      margin-left: 40px;
    }
    .nav-menu li {
      color: #fff;
      font-size: 15px;
      cursor: pointer;
      transition: color 0.2s;
    }
    .nav-menu a {
      color: #fff;
      text-decoration: none;
      transition: color 0.2s;
    }
    .nav-menu a:hover {
      color: #f5a95f;
    }
    /* footer */
    .footer {
      width: 100%;
      background: #5e4532;
      color: #fff;
      text-align: center;
      font-size: 0.95rem;
      padding: 38px 0 32px 0;
      margin-top: auto;
      letter-spacing: 1px;
    }
    .fade-in { opacity: 0; transform: translateY(40px); animation: fadey 0.8s ease 0.1s forwards; } @keyframes fadey { to { opacity: 1; transform: none; } }