body,html{margin:0;padding:0;}
.pptbanner .swiper {
    width: 100%;
    height: 100%;
}
.pptbanner .swiper-slide {
    text-align: center;
    font-size: 18px;
    background: #fff;

    /* Center slide text vertically */
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
}
/* 单张全屏图片区块 */
.pptbanner {
    width: 100vw;
    height: 100vh;
}
.pptbanner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.pptbanner .swiper .swiper-pagination{
    position: fixed;
    left: 40px;
    bottom: 40px;
    font-size: 18px;
    color: #ffffff;
    background: rgba(0, 0, 0, 0.4);
    padding: 8px 16px;
    border-radius: 30px;
    z-index: 999;
    width:unset;
}


.sidebar2 {
    background-color: white;
    border-radius: 8px;
    padding: 30px 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    height: fit-content;
    position: sticky;
    top: 100px;
}
.sidebar.catname{padding:1.5rem 0;background: var(--grey_bg);}
.sidebar.catname .sidebar-title {
    font-size: 20px;
    color:var(--colour1);
    padding: 0 25px 20px;
    border-bottom: 1px solid #eee;
    margin-bottom: 15px;
    font-weight: 700;
}

.sidebar.catname .sidebar-nav {
    list-style: none;
}

.sidebar.catname .sidebar-nav li {
    margin-bottom: 5px;
}

.sidebar.catname .sidebar-nav a {
    display: block;
    padding: 12px 25px;
    color: #555;
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.sidebar.catname .sidebar-nav a:hover {
    background-color: #f5f7ff;
    color: var(--colour1);
    border-left-color: var(--colour1);
}

.sidebar.catname .sidebar-nav a.active {
    background-color: #f5f7ff;
    color: var(--colour1);
    font-weight: 600;
    border-left-color: var(--colour1);
}
.sidebar.catname li:before{content:unset;}

.index_case_list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;}

.index_case_list p{font-size:16px;margin:0px;line-height:1.5;text-align:center;padding-top:10px;}
.index_case_list a:hover p{color:var(--colour1);}
.litpic{width:100%;height:auto;padding-bottom:65%;position:relative;overflow:hidden;}
.litpic img{position:absolute;width:100%;height:100%;object-fit:cover;}

#foot .nav-list a:last-child{border:0;}

.gaoqi{width:100%;height:99vh;}

.navbar-expand-lg .navbar-collapse{flex-grow:0;}
#head .navbar-nav{padding:0;}