html,
body,
canvas {
    padding: 0;
    margin: 0;
    height: 100vh;
    width: 100vw;
}

body {
    margin: 0;
    overflow: hidden;
    background: url("../images/bg.jpg") bottom no-repeat #16192a;
    color: #fff !important;
    background-size: 100% auto;
    width: calc(100vw);
    height: calc(100vh);
    font-size: 12px;
    backdrop-filter: blur(5px);
}

.login_box {
    background: rgba(0, 0, 0, 0.38);
    backdrop-filter: blur(5px);
    border-radius: 10px;
    width: 800px;
    height: 400px;
    margin: 0 auto;
    overflow: hidden;
    position: absolute;
    left: 50vw;
    top: 50vh;
    margin-left: -400px;
    margin-top: -200px;
}

.login_left {
    background: url("../images/login_bg.jpg");
    background-size: auto 100%;
    background-repeat: no-repeat;
    background-position: left bottom;
    height: 400px;
}

.login_title {
    background: linear-gradient(to bottom, #f1f7fe, #6d9acf);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: bold;
    font-size: 21px;
    font-family: yahei;

}

.form-control {
    background: rgba(0, 0, 0, 0.5) !important;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 12px;
}

.login_user {
    font-size: 16px;
}
.form-control:focus {
    color: #fff; /* 修改为你想要的文字颜色 */
}