body{
    background: url("../images/background.jpg?v=2026032200") no-repeat fixed;
    background-size: cover;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
}
a{
    text-decoration: none;
}
div.top_navigation{
    position: fixed;
    background-color:rgba(100, 149, 237, 0.1);/*cornflowerblue*/
    height: 12vh;
    width: 100vw;
}
div.top_navigation_icon{
    background-image: url( '../images/top_navigation_icon_paradox.png?v=2026032200' );
    background-size: cover;
    position: absolute;
    top: 2vh;
    left: 2vw;
    height: 8vh;
    width: 8vh;
}
div.top_navigation_title{
    position: absolute;
    top: 2vh;
    left: 50%;
    transform: translate( -50% , 0 );
    height: 8vh;
    width: 80vw;
    color: white;
    font-size: 6vh;
    text-align: center;
}
div.top_navigation_intro{
    background-image: url( '../images/top_navigation_icon_intro.png?v=2026032200' );
    background-size: cover;
    position: absolute;
    top: 2vh;
    right: 2vw;
    height: 8vh;
    width: 8vh;
}
div.full_screen_intro_display{
    position: fixed;
    backdrop-filter: blur( 4px );
    height: 100vh;
    width: 100vw;
    display: none;
}
.弹窗 {
    display: none;
    align-items: center;
    flex-direction: column;
    box-sizing: border-box;
    position: absolute;
    padding: 40px 40px;
    top: 0vh;
    left: 10vw;
    height: 90vh;
    width: 80vw;
    border-radius: 10px;
    overflow: scroll;
    background: rgba(255, 255, 255, .7);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.弹窗 button {
    margin: -15px -10px 0 auto;
    width: 20px;
    height: 40px;
    font-size: 30px;
    background: none;
    border: none;
    cursor: pointer;
}

.弹窗 p {
    margin: 5px 20px;
    font-size: 12px;
    color: rgb(99,98,98);
}


.弹窗 a {
    padding: 10px 60px;
    font-size: 12px;
    margin-top: 20px;
    text-decoration: none;
    border-radius: 10px;
    transition: 0.4s;
    background: white;
    color: #33cccc;
    display: inline-block;
}

.弹窗 a:hover {
    scale: 0.94;
} 
/*div.full_screen_intro_display_background{
    background-color: azure;
    border-radius: 2vw;
    position: absolute;
    top: 5vh;
    left: 5vw;
    height: 90vh;
    width: 90vw;
}
div.full_screen_intro_display_background_title{
    position: absolute;
    top: 0;
    left: 0;
    height: 5vh;
    width: 100%;
    color: black;
    font-size: 4vh;
    text-align: center;
}
div.full_screen_intro_display_background_text{
    position: absolute;
    top: 5vh;
    left: 0;
    height: 70vh;
    width: 100%;
    color: black;
    font-size: 2.5vh;
    text-align: center;
    overflow: scroll;
    overflow-x: hidden;
    scrollbar-color: aqua azure;
    scrollbar-width: thin;
}
div.full_screen_intro_display_background_annotation{
    position: absolute;
    top: 75vh;
    left: 2vw;
    height: 15vh;
    width: 86vw;
    color: black;
    font-size: 2.5vh;
    text-align: center;
    overflow: scroll;
    overflow-x: hidden;
    scrollbar-color: aqua azure;
    scrollbar-width: thin;
} */