* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

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

body {
    background: url(../img/bg.png
) no-repeat center center fixed;
    height: 100vh;
    width: 100vw;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    background-size: 100% 100%;
}

.bt {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 25vh;
}

.bt img:nth-child(1) {
    width: 50vw;
}

.bt img:nth-child(2) {
    width: 17vw;
    margin: 1vh 0;
}

.search {
    width: 45vw;
    height: 5vh;
    display: flex;
    align-items: center;
    border: 1px solid #44bbdf;
    background-color: #44bbdf69;
    padding: 5px;
    border-radius: 0.2vw;
}

.search input {
    width: 60vw;
    height: 4vh;
    padding-left: 1vh;
    outline: transparent;
    border-radius: 0.2vw;
    border: transparent;
    font-size: 1vw;
}

.search .btn {
    width: 5vw;
    height: 4vh;
    margin-left: 0.3vw;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #24a6d6;
    border-radius: 0.2vw;
    color: #fff;
    cursor: pointer;
    -moz-user-select: none;
    /*火狐*/
    -webkit-user-select: none;
    /*webkit浏览器*/
    -ms-user-select: none;
    /*IE10*/
    user-select: none;
    /*选中文字时避免出现蓝色背景*/
    font-size: 1vw;
}

.tb {
    height: 40vh;
    overflow: auto;
    -ms-overflow-style: none;
    /* 隐藏 IE/Edge 滚动条 */
    scrollbar-width: none;
    /* 隐藏 Firefox 滚动条 */
}

table {
    width: 54vw;
    border-collapse: collapse;
    color: #fff;
    font-size: 14px;
    position: relative;
}

/* 表头 */
thead tr {
    background: #44bbdf8f;
    position: sticky;
    top: 0;
}

thead th {
    background: #44bbdf;
    padding: 0.5vw 0.5vw;
    text-align: center;
    font-weight: bold;
    font-size: 0.8vw;
    color: #e8f0ff;
    border: 1px solid #24a6d6;
    letter-spacing: 1px;
    cursor: default;
    min-width: 110px;
}

/* 表体行 */

tbody tr {
    background: #44bbdf8f;
}


tbody td {
    padding: 0.5vw 0.5vw;
    text-align: center;
    border: 1px solid #24a6d6;
    line-height: 1.6;
    cursor: default;
}

tbody td a {
    color: #fff;
}

/* 发光分隔线效果 */
tbody tr:first-child td {
    border-top: 1px solid rgba(100, 150, 255, 0.3);
}

#app {
    position: relative;
}

#app .back {
    position: absolute;
    bottom: 5vh;
    right: -10vw;
    cursor: pointer;
}

#app .back img {
    width: 7vw;
    height: 8.5vh;
}

@media screen and (max-width: 640px) {
    body {
        background-size: 100% 100%;
    }

    .bt {
        top: 15vh;
    }

    .bt img:nth-child(1) {
        width: 80vw;
    }

    .bt img:nth-child(2) {
        width: 40vw;
    }

    .search {
        width: 80vw;
    }

    .search input {
        font-size: 3vw;
    }

    .search .btn {
        width: 20vw;
        height: 4vh;
        font-size: 3vw;
    }

    .tb {
        width: 95vw;
    }

    thead th {
        font-size: 4.8vw;
        min-width: 24vw;
    }

    #app .back {
        position: absolute;
        bottom: -8vh;
        right: 8vw;
        cursor: pointer;
    }

    #app .back img {
        width: 20vw;
        height: 6vh;
    }
}