.main-header-bar{
    height: 75px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

@media (max-width: 767px) {
    .main-header-bar{
        height: 36px;
        display: block;
    }
}

.log-bar{
    display: flex;
    align-items: center;
    top: 0;
    right: 15px;
    color: #000000a1;
    cursor: pointer;
}

.login-dropdown {
    display: none;
    position: absolute;
    background-color: #fff;
    width: 120px;
    border: 1px solid #e4e7ed;
    box-shadow: 0px 0px 12px rgba(0, 0, 0, .12);
    z-index: 100;
    right: 0;
    top: 40px;
    padding: 5px 0;
    border-radius: 4px;
}

/* 下拉菜单项样式 */
.login-dropdown-item {
    display: flex;
    align-items: center;
    white-space: nowrap;
    list-style: none;
    line-height: 22px;
    padding: 5px 16px;
    margin: 0;
    font-size: 14px;
    color: #606266;
    cursor: pointer;
    outline: none;
}

/* 鼠标悬停在菜单项上的样式 */
.login-dropdown-item:hover {
    background-color: rgb(235.9, 245.3, 255);
    color: #409eff;
}

.app-down-span{
    font-weight: bold;
    font-size: 42px;
    color: #393939;
    line-height: 30px;
    text-align: left;
}

.header-slide-text{
    position: relative;
    animation: diyZoomIn 1.5s forwards; /* 关键动画属性 */
}

@keyframes diyZoomIn {
    0% {
        opacity: 0;
        transform: scale3d(.3, .3, .3);
    }
    50% {
        opacity: 1;
        transform: scale(1);
    }
}

.app-nav {
    width: 240px;
    border: 1px solid #EEEEEE;
    box-shadow: 0px 3px 10px 1px rgba(0,0,0,0.16);
    position: relative;
    height: fit-content;
    margin-bottom: 50px;
    animation: slideIn 1.5s forwards; /* 关键动画属性 */
    opacity: 0; /* 可选：初始透明 */
    transform: translateX(-100%); /* 起始位置在左侧 */
}

@keyframes slideIn {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.app-nav-top{
    background-image: url(../images/app-nav-bg.png);
    color: #fff;
    font-weight: bold;
    height: 80px;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-nav-child{
    height: 45px;
    font-weight: 400;
    font-size: 18px;
    color: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid #EEEEEE;
    cursor: pointer;
}
.active-child:before{
    content: "";
    position: absolute;
    width: 3px;
    height: 45px;
    background: #035195;
    left: 0;
}
.active-child{
    color: #035195;
    font-weight: bold;
}

.app-menu {
    font-family: Microsoft YaHei, Microsoft YaHei;
    width: 400px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    margin-left: 50px;
}

.menu-title{
    font-weight: bold;
    font-size: 29px;
    color: #000000;
    /*line-height: 32px;*/
}

.menu-detail{
    font-size: 18px;
    color: #035195;
}

.content-body{
    /*display: none;*/
}


.content-body.active {
    display: block;
}

.content-item{
    height: 246px;
    display: flex;
    margin-bottom: 60px;
    cursor: pointer;
    transition: transform 0.2s ease-out; /* 缩放动画 */
    will-change: transform; /* 优化性能 */
}

.content-item:hover {
    transform: scale(1.01);
    .menu-detail{
        font-weight: bold;
    }
}

.download-btn{
    background-color: #d68e00 !important;
    border-radius: 0 !important;
    border: solid 1px #d68e00 !important;
}

.back-btn{
    background-color: #fff !important;
    color: #000 !important;
    border-radius: 4px !important;
    border: solid 1px #DCDFE6 !important;
}

.intro-menu{
    cursor: pointer;
    position: relative;
}

.intro-menu:hover{
    color: #035195;
}

.intro-menu.active{
    color: #035195;
    font-weight: bold;
}

.intro-menu.active:after{
    content: "";
    position: absolute;
    width: 70px;
    height: 3px;
    background: #035195;
    left: 0;
    bottom: -2px;
}

.version-select{
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 220px;
}

.version-select-dropdown{
    min-width: 225px;
    position: absolute;
    background-color: #fff;
    box-sizing: border-box;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    z-index: 1000;
    list-style: none;
    padding: 0;
    margin: 0;
    top: 100%;
    width: fit-content;
}

.version-select-dropdown-item{
    font-size: 14px;
    position: relative;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    box-sizing: border-box;
    padding: 10px 15px;
    cursor: pointer;
    transition: background-color 0.2s;
    color: #333;
    display: flex;
    align-items: center;
    text-decoration: none;
    border-bottom: 1px solid #eee;
    height: 44px;
    line-height: 24px;
}
.version-select-dropdown-item:last-child {
    border-bottom: none;
}
.version-select-dropdown-item:hover{
    background-color: #253f9c;
    color: white;
    text-decoration: none;
}
.version-select-dropdown-item.active{
    font-weight: 700;
    background-color: #e8f0ff;
    color: #253f9c;
}

.edit-title{
    width: 140px;
}

.help-item-img{
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.help-item-intro{
    height: 56px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
    -webkit-line-clamp: 2;
    text-overflow: ellipsis;
}

.auth-down-body{
    width: fit-content;
    height: fit-content;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #303133;
    margin: auto;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-content {
    background-color: white;
    padding: 30px 50px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.loading-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #253f9c;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.class-menu-item{
    margin: 0 25px;
    font-weight: 400;
    font-size: 22px;
    color: #053996;
    height: 100%;
    position: relative;
    display: flex;
    line-height: 30px;
    align-items: center;
    cursor: pointer;
    min-width: 120px;
    width: fit-content;
    justify-content: center;
}
.class-menu-item-active{
    color: #EBAD46;
}
.class-menu-item-active::after{
    position: absolute;
    bottom: 0;
    display: block;
    width: 100%;
    height: 5px;
    background: #EBAD46;
    content: "";
}
.dwn-body-item{
    background-color: #fff;
    box-shadow: 0 3px 6px 1px rgba(0,0,0,0.16);
    border-radius: 5px 5px 5px 5px;
    padding: 25px;
    width: calc((100% - 30px) / 2);
    height: 320px;
}