.panel-group {
    margin: 0 0 3px;
}

.panel-group .panel {
    border: none;
    box-shadow: none;
}

.panel-default>.panel-heading {
    border: none;
    background-image: none; 
    padding: 0;
}

.panel-heading .panel-icon img {
    width: 40px;
}

.panel-heading .panel-plus img {
    width: 12px;
}

.panel-heading a {
    display: flex;
    justify-content: center;
    -ms-align-items: center;
    align-items: center;
    height: 81px;
    text-decoration: none;
}

.panel-heading .panel-icon {
    width: 83px;
    height: 100%;
    display: flex;
    justify-content: center;
    -ms-align-items: center;
    align-items: center;
    background-color: #143a84;
}

.panel-heading .panel-plus {
    width: 93px;
    height: 100%;
    display: flex;
    justify-content: center;
    -ms-align-items: center;
    align-items: center;
    background-color: #ff8a00;
}

.panel-heading .panel-title {
    width: calc(100% - 176px);
    font-size: 20px;
    color: #0a0a0a;
    line-height: 1;
    font-weight: 700;
    text-align: left;
    padding: 0 45px;
}

.panel-body {
    padding: 0;
}

.panel-body .p-0 {
    padding: 0;
}

.panel-body .references_box {
    height: 305px;
    display: flex;
    justify-content: flex-start;
    -ms-align-items: center;
    align-items: center;
    flex-direction: column;
    border: 1px solid #f5f5f5;
    padding: 50px 30px 15px;
}

.references_box img {
    width: 120px;    
}

.references_box h3 {
    font-size: 24px;
    color: #0a0a0a;
    line-height: 1.2;
    font-weight: 700;
    text-align: center;
    height: 75px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
} 

.references_box span {
    color: #c1c5c7;
    font-size: 15px;
    font-weight: 400;
    line-height: 1;
    text-align: center;
    margin: 25px 0 0;
    display: block;
}

.references_box .references_text p {
    color: #0a0a0a;
    font-size: 18px;
    font-weight: 400;
    line-height: 1.4;
    text-align: center;
    margin: 8px 0 0;
    transition: 0.2s;
    /*border-bottom: 1px solid transparent;*/    
}

.references_box:hover .references_text p {
    color: #ff8a00;
    /*border-color: #ff8a00;*/
    text-decoration: underline;
}

.panel-default>.panel-heading+.panel-collapse>.panel-body {
    border: none;
}

.panel-body .col-lg-4 .references_box {
    border-top: none;
}

.panel-body .col-lg-4:not(:nth-child(3n+1)) .references_box {
    border-left: none;
}

.minus_icon {
    display: none;
}

@media screen and (max-width: 1199px) {
    .panel-body .references_box {
        padding: 30px 30px 15px;
    }
}

@media screen and (max-width: 991px) {
    .panel-body .col-lg-4:not(:nth-child(3n+1)) .references_box {
        border-left: 1px solid #f5f5f5;
    }

    .panel-body .col-lg-4:not(:nth-child(2n+1)) .references_box {
        border-left: none;
    }
}

@media screen and (max-width: 767px) {
    .panel-body .col-lg-4:not(:nth-child(2n+1)) .references_box {
        border-left: 1px solid #f5f5f5;
    }

    .category_wrapper {
        margin: 70px 0 0;
    } 
}

@media screen and (max-width: 575px) {
    .panel-heading .panel-title {
        font-size: 16px;
        padding: 0 15px;
        width: calc(100% - 156px);
    }

    .panel-heading .panel-plus {
        width: 73px;
    }
}