xtu_mall/public/assets/css/header.css

/*前台通用头部*/
/* 头部 */
.fly-header{
    position: fixed;
    left: 0;
    top: 0;
    z-index: 10000;
    width: 100%;
    border-bottom: 1px solid #404553;
    border-right: 1px solid #404553;
    border-radius: 0;
    background-color:#2f363c;
    height: 60px;
    transition: height 0.3s ease;
}

.fly-header .layui-container {
    position: relative;
    height: 60px;
}

.fly-header .fly-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    width: 100%;
}

.fly-header .navbar-toggle {
    position: relative;
    padding: 18px 12px;
    cursor: pointer;
    background: transparent;
    border: none;
    outline: none;
    flex-shrink: 0;
    z-index: 1001;
}

.fly-header .navbar-toggle .icon-bar {
    display: block;
    height: 2px;
    border-radius: 1px;
    width: 20px;
    background-color: #888;
    transition: all 0.3s ease;
}

.fly-header .navbar-toggle .icon-bar + .icon-bar {
    margin-top: 4px;
}

.fly-header .navbar-toggle:hover .icon-bar {
    background-color: #fff;
}

.fly-header .fly-logo {
    float: left;
    flex-shrink: 0;
}

.fly-header .fly-logo h2 {
    font-size: 21px;
    line-height: 60px;
    color: #fff;
    font-weight: normal;
    margin: 0;
    white-space: nowrap;
}

/* 桌面端导航 */
.fly-nav-desktop {
    display: block;
}

.fly-header .fly-nav-user .iconfont {
    position: relative;
}

.fly-header .fly-nav-avatar img {
    width: 36px;
    height: 36px;
    margin-right: 10px;
    border-radius: 100%;
}

.fly-header .fly-nav-user .layui-nav-child a i {
    position: relative;
    top: 1px;
    margin-right: 10px;
}

.fly-header .layui-nav {
    padding: 0;
    background: transparent;
}

.fly-header .fly-nav-user li a {
    padding: 0 10px;
}

.fly-header .fly-nav-user li .fly-nav-avatar {
    padding-right: 25px;
}

.fly-header .layui-nav .layui-this:after,
.fly-header .layui-nav .layui-nav-bar {
    display: none !important;
}

.fly-header .layui-nav-right {
    float: right !important;
}

.fly-header .layui-nav .fly-nav-user {
    margin-left: 30px;
}

.fly-header .layui-nav .fly-nav-user .layui-btn-register,
.fly-header .layui-nav .fly-nav-user .layui-btn-login {
    display: inline-block;
    color: #fff !important;
}

/* 导航图标样式 */
.fly-header .layui-nav-item a i {
    margin-right: 5px;
    font-size: 16px;
}

.fly-header .layui-nav-item a .iconfont {
    vertical-align: middle;
}

/* 移动端导航图标 */
@media screen and (max-width: 768px) {
    .fly-header .fly-nav-mobile .layui-nav-item a i {
        font-size: 18px;
        width: 24px;
        text-align: center;
        display: inline-block;
    }
}

/* 图标字体占位（如果 iconfont 未加载） */
.icon-search:before { content: "🔍"; }
.icon-language:before { content: "🌐"; }
.icon-shop:before { content: "🛒"; }

/*白色主题*/
.light-theme .fly-header {
    border-color: #fff;
    box-shadow: 0 1px 8px rgb(0 0 0 / 8%);
    background: #fff;
}

.light-theme .fly-header .layui-nav .layui-nav-item a {
    color: #555;
}

.light-theme .fly-header .layui-nav {
    background-color: #fff;
    color: #555;
}

.light-theme .fly-header .navbar-toggle {
    color: #000;
}

.light-theme .fly-header .navbar-toggle .icon-bar {
    background-color: #333;
}

.light-theme .fly-header .fly-logo h2 {
    color: #333;
}

.light-theme .fly-header .layui-nav .layui-this>a {
    color: #1e9fff;
}

/* 移动端白色主题适配 */
@media screen and (max-width: 768px) {
    .light-theme .fly-header .navbar-toggle .icon-bar {
        background-color: #333;
    }
}

/* 底部 */
.fly-footer {margin: 50px 0 0;}
.fly-footer .copyright{background: #393939;line-height: 50px;text-align: center; color: #aaa;}
.fly-footer .copyright a{padding:0 6px; font-weight: 300; color: #aaa;}
.fly-footer .copyright a:hover{color: #fff;}

@media screen and (min-width: 768px) {
    .fly-header .fly-head {
        float: left;
    }
    
    .fly-header .navbar-toggle {
        display: none;
    }
    
    .fly-header .navbar-collapse.layui-hide {
        display: block !important;
    }
    
    .fly-nav-mobile {
        display: none !important;
    }
}

@media screen and (max-width: 768px) {
  /* 隐藏桌面端导航 */
  .fly-nav-desktop {
      display: none !important;
  }
  
  /* 头部固定高度，防止拉长 */
  .fly-header {
      height: 56px;
  }
  
  .fly-header .layui-container {
      height: 56px;
  }
  
  .fly-header .fly-logo h2 {
      font-size: 17px;
      line-height: 56px;
  }
  
  /* 移动端菜单容器 - 绝对定位，不影响头部高度 */
  .fly-header .navbar-collapse {
      position: absolute;
      top: 56px;
      left: 0;
      right: 0;
      background: #fff;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      z-index: 999;
      margin: 0;
      padding: 0;
  }
  
  .fly-header .navbar-collapse.layui-hide {
      max-height: 0;
  }
  
  .fly-header .navbar-collapse:not(.layui-hide) {
      max-height: 500px;
      overflow-y: auto;
      -webkit-overflow-scrolling: touch;
  }
  
  /* 移动端导航样式 */
  .fly-header .fly-nav-mobile {
      width: 100%;
      background: #fff !important;
  }
  
  .fly-header .fly-nav-mobile .layui-nav-item {
      display: block;
      border-bottom: 1px solid #f0f0f0;
  }
  
  .fly-header .fly-nav-mobile .layui-nav-item a {
      padding: 14px 20px;
      height: auto;
      line-height: 1.4;
      color: #333;
      display: flex;
      align-items: center;
  }
  
  .fly-header .fly-nav-mobile .layui-nav-item a i {
      width: 24px;
      font-size: 18px;
      margin-right: 10px;
      text-align: center;
  }
  
  .fly-header .fly-nav-mobile .layui-nav-item.layui-this a {
      background-color: #f5f5f5;
      color: #1e9fff;
  }
  
  .fly-header .fly-nav-mobile .layui-nav-child {
      position: static;
      width: 100%;
      background: #fafafa;
      border-top: 1px solid #f0f0f0;
      border-radius: 0;
      box-shadow: none;
  }
  
  .fly-header .fly-nav-mobile .layui-nav-child dd a {
      padding-left: 54px;
      font-size: 14px;
  }
  
  /* 用户头像区域 */
  .fly-header .fly-nav-mobile .fly-nav-avatar {
      display: flex;
      align-items: center;
      padding: 14px 20px !important;
  }
  
  .fly-header .fly-nav-mobile .fly-nav-avatar img {
      width: 32px;
      height: 32px;
      margin-right: 10px;
  }
  
  .fly-header .fly-nav-mobile .fly-nav-avatar cite {
      font-style: normal;
      font-size: 14px;
  }
  
  .fly-header .fly-nav-mobile .fly-nav-user .layui-nav-child {
      background: #fafafa;
  }
  
  .fly-header .fly-nav-mobile .fly-nav-user .layui-nav-child dd a {
      padding-left: 54px;
  }
  
  /* 汉堡菜单按钮 */
  .fly-header .navbar-toggle {
      padding: 16px 10px;
      margin: 0;
      background: transparent;
  }
  
  .fly-header .navbar-toggle .icon-bar {
      width: 20px;
      height: 2px;
      background-color: #666;
  }
  
  .light-theme .fly-header .navbar-toggle .icon-bar {
      background-color: #333;
  }
  
  /* 页脚 */
  .fly-footer {
      margin-top: 25px;
      border-top: none;
  }
}