* {
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
}

input,
.c1{
    /* 文字颜色 */
    color: #cbcccc;
    margin: 5px auto;
    /* text-align: center; */
}
.c2{
    border: 1px solid #ccc;
    border-radius: 5px;
    /* font-size: 18px; */
    padding: 10px;

    text-align: center;
}
button {
    background: transparent;
    border: 0;
    outline: none;
}

body {
    height: 100vh;
    background: linear-gradient(#141e30, #243b55);
    display: flex;
    justify-content: center;
    align-items: center;
    /* font-size: 16px; */
    color: #03e9f4;
    background-image: url('./login.jpg'); /* 替换为你的花纹图片路径 */
    /* background-size: cover; 调整背景图片大小以覆盖整个容器 */
    background-blend-mode: overlay; /* 使用overlay混合模式增加一些透明感 */
}


/* .loginBox {
    width: 400px;
    height: 364px;
    background-color: #0c1622;
    margin: 100px auto;
    border-radius: 10px;
    box-shadow: 0 15px 25px 0 rgba(0, 0, 0, 0.6);
    padding: 40px;
    box-sizing: border-box;
} */
.loginBox {
    width: 400px;
    height: 385px;
    background-color: rgba(111, 123, 138, 0.1); /* 使用rgba来设置带透明度的背景色 */
    margin: 100px auto;
    border-radius: 10px;
    box-shadow: 0 15px 25px 0 rgba(0, 0, 0, 0.6);
    padding: 40px;
    box-sizing: border-box;
    backdrop-filter: blur(10px); /* 添加毛玻璃效果，可以根据需要调整模糊程度 */
       

}

h2 {
    text-align: center;
    color: aliceblue;
    margin-bottom: 30px;
    font-family: 'Courier New', Courier, monospace;
}

.item {
    height: 45px;
    border-bottom: 1px solid #fff;
    margin-bottom: 40px;
    position: relative;
}

.item input {
    width: 100%;
    height: 100%;
    color: #6045a8;
    padding-top: 20px;
    box-sizing: border-box;
    font-weight: bold;
}

.item input:focus+label,
.item input:valid+label {
    top: 0px;
    font-size: 2px;
}

.item label {
    position: absolute;
    left: 0;
    top: 12px;
    transition: all 0.5s linear;
}

.btn {
    padding: 10px 20px;
    margin-top: 50px;
    color: #03e9f4;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 2px;
    left: 40%;

}

.btn:hover {
    border-radius: 5px;
    color: #fff;
    background: #03e9f4;
    box-shadow: 0 0 5px 0 #03e9f4,
        0 0 25px 0 #03e9f4,
        0 0 50px 0 #03e9f4,
        0 0 100px 0 #03e9f4;
    transition: all 1s linear;
}

.btn>span {
    position: absolute;
}

.btn>span:nth-child(1) {
    width: 100%;
    height: 2px;
    background: -webkit-linear-gradient(left, transparent, #03e9f4);
    left: -100%;
    top: 0px;
    animation: line1 1s linear infinite;
}

@keyframes line1 {

    50%,
    100% {
        left: 100%;
    }
}

.btn>span:nth-child(2) {
    width: 2px;
    height: 100%;
    background: -webkit-linear-gradient(top, transparent, #03e9f4);
    right: 0px;
    top: -100%;
    animation: line2 1s 0.25s linear infinite;
}

@keyframes line2 {

    50%,
    100% {
        top: 100%;
    }
}

.btn>span:nth-child(3) {
    width: 100%;
    height: 2px;
    background: -webkit-linear-gradient(left, #03e9f4, transparent);
    left: 100%;
    bottom: 0px;
    animation: line3 1s 0.75s linear infinite;
}

@keyframes line3 {

    50%,
    100% {
        left: -100%;
    }
}

.btn>span:nth-child(4) {
    width: 2px;
    height: 100%;
    background: -webkit-linear-gradient(top, transparent, #03e9f4);
    left: 0px;
    top: 100%;
    animation: line4 1s 1s linear infinite;
}

@keyframes line4 {

    50%,
    100% {
        top: -100%;
    }
}