/* 头像样式 */
.avatar {
    vertical-align: middle;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    cursor: pointer; /* 添加鼠标指针样式 */
}


body .shell-main {
  width: 100%;
  height: auto;
  position: relative;
  transition: .2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 100px;
}

body .shell-main-nav {
  width: 100%;
  height: 60px;
  position: sticky;
  z-index: 999;
  top: 0;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  margin-bottom: 18vh;
  background: linear-gradient(to right bottom, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.6));
  backdrop-filter: blur(13px);
}

body .shell-main-nav .logo {
  width: 220px;
  height: 100%;
  position: absolute;
  left: 5%;
  justify-content: space-between;
  display: flex;
  align-items: center;
}

body .shell-main-nav .logo img {
  width: 45px;
  height: 45px;
  border-radius: 50%;
}

body .shell-main-nav .logo span {
  font: 100 22px 'font';
  letter-spacing: 2px;
}

body .shell-main-nav ul {
  width: 600px;
  height: 100%;
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  position: absolute;
  right: 5%;
}

body .shell-main-nav ul .nav-box {
  position: absolute;
  bottom: 1px;
  left: 0;
  width: 115px;
  height: 5px;
  border-radius: 2px;
  background-color: #b444ff;
  z-index: -999;
  transition: .5s;
}

body .shell-main-nav ul li {
  width: 150px;
  text-align: center;
}

body .shell-main-nav ul li a {
  color: #000;
  display: block;
  width: 100%;
  height: 100%;
  line-height: 60px;
  text-align: center;
}
body .shell-main-nav ul li:nth-child(1):hover~.nav-box {
  left: 0px;
  background-color: red;
}
body .shell-main-nav ul li:nth-child(2):hover~.nav-box {
  left: 120px;
  background-color: red;
}

body .shell-main-nav ul li:nth-child(3):hover~.nav-box {
  left: 240px;
  background-color: #8da1f8;
}

body .shell-main-nav ul li:nth-child(4):hover~.nav-box {
  left: 360px;
  background-color: #ffb1b1;
}

body .shell-main-nav ul li:nth-child(5):hover~.nav-box {
  left: 480px;
  background-color: #7df88e;
}
/* 下拉菜单样式 */
body .shell-main-nav ul li.dropdown .dropdown-content {
            visibility: hidden;
            opacity: 0;
            position: absolute;
            top: 100%; /* 确保下拉菜单出现在父按钮正下方 */
            left: 0;
            background: linear-gradient(to right bottom, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.6));
            backdrop-filter: blur(13px);
            box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2);
            z-index: 1;
            width: 100%; /* 宽度与父按钮一致 */
            transform: scaleY(0);
            transform-origin: top;
            transition: all 0.3s ease;
        }

        body .shell-main-nav ul li.dropdown .dropdown-content a {
            color: black;
            padding: 0; /* 去除多余内边距 */
            text-decoration: none;
            display: block;
            line-height: 60px; /* 垂直居中 */
            width: 100%; /* 宽度与下拉菜单一致 */
            height: 60px; /* 设置高度 */
            box-sizing: border-box; /* 确保内边距和边框包含在宽度和高度内 */
        }

        body .shell-main-nav ul li.dropdown .dropdown-content a:hover {
            background-color: #e0e0e0; /* 鼠标悬停时背景颜色变深 */
        }

        body .shell-main-nav ul li.dropdown:hover .dropdown-content {
            visibility: visible;
            opacity: 1;
            transform: scaleY(1);
        }
body .shell-main-nav ul li.dropdown {
    position: relative; /* 确保下拉菜单相对于该元素定位 */
}
/* media */
@media (max-width:768px) {
  body .shell-main-nav ul {
      transform: scale(.7);
      right: -60px;
      top: 2px;
  }
}

@media (max-width:600px) {
  body .shell-main-nav .logo {
      display: none;
  }

  body .shell-main-nav ul {
      transform: scale(.6);
      right: -130px;
  }
}