.icon-up-to-top {
    width: 1em;
    height: 1em;
    font-size:1.6em;
    vertical-align: -0.15em;
    overflow: hidden;
}

.li-info{
    font-size: 1.1em;
}

.main-box{
    display: flex;
    justify-content: center;
    margin: 40px auto 40px;
    align-items: center;
    width: 100%;
}

.secondary-box{
    display:flex;
    justify-content: space-around;
    width: 90%;
}

body{
    background: #fafbfc;
}
.main{
    min-height: calc(100vh - 120px);
}
html,body{
    margin:0;
    padding:0;
}

.head-bar{
    width: 100%;
    background: #ffffff;
}

footer{
    width: 100%;
    height: 120px;
    background: #ffffff;
    padding: 10px 7%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 -6px 6px rgba(0, 0, 0, 0.05);
    flex: 0 0 auto;
}

footer div p{
    text-decoration: none;
    font-size: 1.5em;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: #333;
    display: inline-block;
    margin-bottom: 0;
}

.header{
    padding: 10px 7%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 6px 6px rgba(0, 0, 0, 0.05);
}

.mian-flag{
    text-decoration: none;
    font-size: 32px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #333;
    padding: 20px 0;
}

.mian-flag:hover {
    color: #0060e1;
    text-decoration: none;
}

.menubar-box{
    display: flex;
    align-items: center;
}

.menubar-box ul.menubar {
    margin-bottom: 0;
    padding: 2px 0;
    align-items: center;
    position: relative;
    display: flex;
    gap: 30px;
}

.menubar-box ul.menubar li.menu-items {
    align-items: center;
    list-style: none;
    position: relative;
    display: flex;
}

.menubar-box ul.menubar li.menu-items a {
    position: relative;
    font-size: 24px;
    font-weight: 700;
    color: #333;
    letter-spacing: 0.2em;
}

.dropdown-item:hover {
    border-radius: 1em;
    background: #0060e1;
    color: var(--bs-white);
    text-decoration: none;
}

tem.text{
    font-weight: 700;
    font-size: 24px;
}

tem.text:hover{
    color: #0060e1;
}

ul.dropdown-menu {
    margin-left: 5em;
    background: #fafbfc;
    align-items: center;
}

ul.dropdown-menu li a {
    text-align: center;
    font-size: 18px;
    color: #333;
    font-weight: 700;
}

#abstract {
    height: 100px;
}

a{
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

p{
    word-wrap: break-word;
    word-break: break-all;
}
/*定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/
::-webkit-scrollbar {
    width: 0.5em;
    height: 80%;
    background-color: rgba(0,0,0,0);
}
/*定义滚动条轨道 内阴影+圆角*/
::-webkit-scrollbar-track {
    background-color: rgba(0,0,0,0);
}
/*定义滑块 内阴影+圆角*/
::-webkit-scrollbar-thumb {
    border-radius: 10px;
    background: var(--bs-primary);
}
.danger-btn{
    background: var(--bs-primary);
    color: var(--bs-white);
    border: 0;
    border-radius: 1em;
    box-shadow: 0 0 6px rgba(0, 0, 255, 0.5);
    padding: 0.25em 1em;
    font-size: 0.9em;
    margin: 0.25em 0;
}
.danger-btn:hover {
    background: var(--bs-danger);
    box-shadow: 0 0 6px rgba(255, 0, 0, 0.5);
}
.safe-hover:hover{
    background: var(--bs-success);
    box-shadow: 0 0 6px rgba(25, 135, 84, 0.5);
}
.add-btn{
    width: 4em;
    height: 2em;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bs-success);
    box-shadow: 0 0 6px rgba(0, 255, 0, 0.5);
}
.add-btn:hover{
    background: var(--bs-warning);
    box-shadow: 0 0 6px rgba(255, 193, 7, 0.5);
}
.new-form{
    position: fixed;
    background: var(--bs-white);
    box-shadow: 0 0 0.5em rgba(0,0,0,0.05);
    border-radius: 1em;
    height: 0;
    overflow: hidden;
}
.new-form input{
    border: 2px solid var(--bs-primary);
    border-radius: 1em;
}
.new-form input:focus-visible{
    border-radius: 1em;
    border: 2px solid var(--bs-primary);
    outline: 0;
}