*{
	margin: 0;
	padding: 0;
	font-family: "微软雅黑";
}
html{
	background-color: #f5f5f5;
}
body{
	height: 100%;
}
.wrap{
	background-color: #fff;
	width: min(350px, calc(100% - 32px));
	height: 450px;
	/* padding: 0 50px; */
	border-radius: 15px;
	margin: 100px auto;
}
.wrap h2{
	font-size: 30px;
	font-weight: bold;
	text-align: center;
	line-height: 130px;
	color: #8B0000;
}

/*用户名*/
.form{
	width: 200px;
	margin: 0 auto;
	/* border: 1px solid #000000; */
}
.form .uname{
	display: block;
	width: 100%;
	border: none;
	outline: none;
	border-bottom: 1px solid #B0B0B0;
	margin-bottom: 10px;
}
.form .uname:hover{
	border-bottom: 1px solid #8B0000;
}
/*密码*/
.form .pw{
	display: block;
	width: 100%;
	border: none;
	outline: none;
	border-bottom: 1px solid #B0B0B0;
	margin-bottom: 10px;
}
.form .pw:hover{
	border-bottom: 1px solid #8B0000;
}
/*验证码*/
.form .yz{
	display: block;
	width: 100%;
	border: none;
	outline: none;
	border-bottom: 1px solid #B0B0B0;
	margin-bottom: 10px;
}

.sm{
	font-size: 14px;
}
/*登录*/

.form .btn button{
	border: none;
	width: 200px;
	text-align: center;
	background-color: #8B0000;
	color: #fff;
	padding: 10px;
	font-size: 16px;
	margin: 10px auto;
	cursor: pointer;
	transition: all 0.3s ease;
}
.form button:hover{
	background-color:#c20000;
	color: #ffffff;
}
/* ===== 手机端适配（≤768px）===== */
@media (max-width: 768px) {
    .wrap {
        height: auto;
        min-height: 420px;
        margin: 40px auto;
        padding-bottom: 20px;
    }
    .wrap h2 {
        line-height: 90px;
    }
}