/**
 * 登录页自定义样式
 */
body.signin {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.signinpanel {
    width: 420px;
    margin: 8% auto 0;
    padding: 0;
}

.signinpanel .row {
    margin: 0;
}

.signinpanel .col-sm-7 {
    display: none;
}

.signinpanel .col-sm-5 {
    width: 100%;
    padding: 0;
}

.signinpanel form {
    background: #fff;
    border: none;
    border-radius: 16px;
    padding: 45px 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.signinpanel form h4.no-margins {
    font-size: 26px;
    font-weight: 700;
    color: #333;
    text-align: center;
    margin-bottom: 8px;
}

.signinpanel form p.m-t-md {
    text-align: center;
    color: #888;
    font-size: 14px;
    margin-bottom: 30px;
}

.signinpanel .form-control {
    height: 48px;
    border-radius: 10px;
    border: 1px solid #e0e0e0;
    padding: 10px 15px;
    font-size: 15px;
    transition: all 0.3s;
    background-position: 96% center !important;
}

.signinpanel .form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.signinpanel .uname {
    margin-top: 0 !important;
}

.signinpanel .code {
    margin: 0 !important;
}

.signinpanel .row.m-t {
    margin-top: 15px !important;
    margin-bottom: 5px;
}

.signinpanel .imgcode {
    height: 48px;
    border-radius: 10px;
    cursor: pointer;
    border: 1px solid #e0e0e0;
}

.signinpanel .checkbox-custom {
    margin: 20px 0;
}

.signinpanel .checkbox-custom label {
    color: #666;
}

.signinpanel .btn-success {
    height: 48px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    margin-top: 10px;
    transition: all 0.3s;
}

.signinpanel .btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.signup-footer {
    text-align: center;
    border: none;
    margin-top: 30px;
    padding: 0;
}

.signup-footer .pull-left {
    float: none !important;
    color: rgba(255, 255, 255, 0.8);
    font-size: 12px;
}

/* 添加Logo到表单顶部 */
.signinpanel form::before {
    content: '回声舱 Plus';
    display: block;
    text-align: center;
    font-size: 28px;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 5px;
    letter-spacing: 2px;
}

@media screen and (max-width: 500px) {
    .signinpanel {
        width: 90%;
        margin: 5% auto;
    }
    
    .signinpanel form {
        padding: 35px 25px;
    }
}