html{height: 100%;}
body.signin {
    background: #fff;
    height: auto;
    color: #333;
}

.login-container {
    max-width: 400px;
    margin: 10% auto 0 auto;
    padding: 20px;
}

.system-name {
    text-align: center;
    margin-bottom: 10px;
    color: #333;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

.system-name h1 {
    font-size: 28px;
    font-weight: bold;
}

.logo-container {
    text-align: center;
    margin-bottom: 10px;
}

.logo {
    height: 50px;
    width: auto;
    max-width: 200px;
}

.logo-title-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.form-control {
    border-radius: 4px;
    padding: 12px 15px;
    height: auto;
}

.btn-login {
    background-color: #428bca;
    border-color: #357ebd;
    border-radius: 4px;
    padding: 12px;
    font-size: 16px;
    width: 100%;
    color: white;
    margin-top: 10px;
}

.btn-login:hover {
    background-color: #3276b1;
    border-color: #285e8e;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    font-weight: bold;
    color: #333;
    text-shadow: none;
    margin-bottom: 0;
    display: inline-block;
    width: 80px;
    padding-top: 8px;
}

.error-message {
    color: #ff6b6b;
    text-align: center;
    margin-top: 10px;
    font-weight: bold;
    padding: 12px 15px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.error-message.alert-error {
    background-color: #ffe6e6;
    color: #d9534f;
    border: 1px solid #d9534f;
    display: block;
}

.error-message.alert-success {
    background-color: #e6ffe6;
    color: #5cb85c;
    border: 1px solid #5cb85c;
    display: block;
}

/* 字段级别的错误提示 */
.field-error {
    color: #d9534f;
    font-size: 13px;
    white-space: nowrap;
    min-width: 0;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.signinpanel {
    width: 750px;
    margin: 10% auto 0 auto;
}

.signinpanel .logopanel {
    float: none;
    width: auto;
    padding: 0;
    background: none;
}

.signinpanel .signin-info ul {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.signinpanel .form-control {
    display: block;
    margin-top: 15px;
}

.signinpanel .uname {
    background: #fff url(../img/user.png) no-repeat 95% center;color:#333;
}

.signinpanel .pword {
    background: #fff url(../img/locked.png) no-repeat 95% center;color:#333;
}

.signinpanel .btn {
    margin-top: 15px;
}

.signinpanel form {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255,255,255,.3);
    -moz-box-shadow: 0 3px 0 rgba(12, 12, 12, 0.03);
    -webkit-box-shadow: 0 3px 0 rgba(12, 12, 12, 0.03);
    box-shadow: 0 3px 0 rgba(12, 12, 12, 0.03);
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
    border-radius: 3px;
    padding: 20px;
    width: 400px;
}

.signup-footer{border-top: solid 1px rgba(255,255,255,.3);margin:20px 0;padding-top: 15px;}

@media screen and (max-width: 768px) {
    .signinpanel,
    .signuppanel {
        margin: 0 auto;
        width: 420px!important;
        padding: 20px;
    }
    .signinpanel form {
        margin-top: 20px;
    }
    .signup-footer {
        margin-bottom: 10px;
    }
    .signuppanel .form-control {
        margin-bottom: 10px;
    }
    .signup-footer .pull-left,
    .signup-footer .pull-right {
        float: none !important;
        text-align: center;
    }
    .signinpanel .signin-info ul {
        display: none;
    }
}
@media screen and (max-width: 320px) {
    .signinpanel,
    .signuppanel {
        margin:0 20px;
        width:auto;
    }
}