::-webkit-scrollbar {
    width: 15px;
 
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgb(248, 223, 195);
    border-radius: 10px;
    border: 3px solid transparent;
    background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
    background-color: rgb(187, 152, 109);
    width: 10px;
}

html {
    scroll-behavior: smooth;
}

body{
    background-image: url("../image/operator背景.png");
    background-attachment: fixed;
    background-position: center;
    background-size: cover;
}

.rhine-lab{
    position: fixed;
    width: 15vw;
    height: 6.5vw;
    margin: 40px 60px;
    color: rgb(0, 0, 0,0.9);
    border-left: 2px solid black;
}

.line1{
    font-size: 2vw;
    font-weight: 700;
    padding: 3px 5px;
    margin: 0%;
}

.line2{
    font-size: 0.8vw;
    padding: 2px 5px;
    margin: 0%;
}

.line3{
    font-size: 1.5vw;
    padding: 1px 10px;
    margin: 0%;
}

.bottom{
    position: fixed;
    bottom: 0;
    right: 20px;
    color: rgb(0, 0, 0,0.8);
}

.logo-black{
    position: fixed;
    width: 5.5vw;
    bottom: 50px;
    right: 80px;
}

.content{
    position: fixed;
    display: flex;
    gap: 0;
    flex-direction: column;
    width: 13vw;
    height: 20vw;
    gap: 20px;
    right: 5vw;
    bottom: 43vh;
}

.content button{
    background-color: transparent;
    height: 5vw;
    width: 13vw;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    font-size: 1.5vw;
    padding: 0;
    margin: 0;
    cursor: pointer;
    transition: transform 0.5s ease-out,color 0.3s ease-in-out;
}

.content button:hover{
    color: rgb(187, 152, 109);
    transform: translateX(-15px);
}

.index{
    border: none;
    border-bottom: 1px solid black;
}

.overview{
    border: none;
    border-bottom: 1px solid black;
}

.history{
    border: none;
    border-bottom: 1px solid black;
}

.department{
    border: none;
    border-bottom: 1px solid black;
}

.section{
    border: none;
    color: rgb(187, 152, 109);
    border-bottom: 1px solid black;
}

.title{
    position: relative;
    width: 13vw;
    font-family: Georgia, 'Times New Roman', Times, serif;
    font-size: 2.7vw;
    font-weight: 700;
    border-bottom: 3px solid black;
}

.operator{
    position: relative;
    width: 55vw;
    left: 18vw;
    top: 15vh;
    margin-bottom: 10vh;
}

.operator img{
    width: 70%;  
}

.name{
    font-size: 1.7vw;
    font-weight: 700;
}

.operator div{
    margin: 0 0 6vh 1vw;
}

.end{
    padding-bottom: 7vh;
}

.ls{
    position: fixed;
    top: 35vh;
    left: 80px;
    width: 10vw;
}

table{
    border-top: 1px solid black;
    border-bottom: 1px solid black;
}

td{
    padding: 0.3vw;
    font-size: 1vw;
    transition: text-decoration 0.3s ease-in-out;
}

td::before{
    content: "●";
    font-size: 0.7em;
    margin-right: 8px;
    color: black;
}

td:hover{
    text-decoration: underline;
}

a{
    text-decoration: none;
    color: black;
}