/* 全局重置 */
    * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}
   body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}
 header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    background: transparent;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    backdrop-filter: blur(0);
}
 .banner {
    width: 100%;
    height: 500px; /* 可根据需求改为 100vh */
    position: relative;
    overflow: hidden;
  }
body.scrolled header {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(4px);
}

 .container {
    width: 90%;
    max-width: 1620px;
    margin: 0 auto;
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
}
.logo {
    font-size: 1.8rem;
    font-weight: bold;
}
.logo img {
    height: 64px;
    width: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
}
.logo img:hover {
    transform: scale(1.03);
}
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 24px;
    height: 24px;
    cursor: pointer;
    background: transparent;
    border: none;
    appearance: none;
    outline: none;
    gap: 4px;
    padding: 8px;
}
.layui-nav {
    background: transparent !important;
    padding: 0 !important;
    border-radius: 0 !important;
}
.layui-nav .layui-nav-item {
    margin: 0 8px;
}
.layui-nav .layui-nav-item a {
    color: #ffffff !important;
    font-size: 18px;
    font-weight: 600;
    padding: 0 22px !important;
    height: auto !important;
    line-height: 1.4 !important;
    background: transparent !important;
    position: relative;
    display: block;
    text-decoration: none;
}

.layui-nav .layui-nav-item dd a {
   color: #5f5f5f !important;
}
body.scrolled .layui-nav .layui-nav-item a {
    color: #1a1a1a !important;
}
/*顶部上面*/

.containers {
    max-width: 1620px;
    margin: 0 auto;
    padding: 0 20px;
}




/*内容*/
.mobile-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #fff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

/*汉堡导航上面*/
   /* Contact */
    .contact-info { background: #f9f9f9; padding: 30px; border-radius: 8px; }
    .contact-row { margin: 10px 0; line-height: 1.8; }

    /* Footer */
    footer {
      background: #333;
      color: #ccc;
      padding: 20px 0;
      font-size: 14px;
    }
    .footer-links { text-align: center; margin-bottom: 15px; }
    .footer-links a { color: #ccc; margin: 0 10px; }
    .copyright { text-align: center; }