body {
    padding: 0;
    margin: 0;
}
.portal-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.portal-container .header-field {
    height: 120px;
    background-color: #f7f7f7;
    display: flex;
    align-items: center;
    padding: 0 90px;
    box-sizing: border-box;
    width: 100%;
}
.header-field .logo {
    width: 70px;
    height: 70px;
    background: url("/portal/img/logo.png") no-repeat;
    background-size: 100% 100%;
}
.header-field .company-title {
    font-size: 32px;
    margin-left: 40px;
    letter-spacing: 3px;
}

.main-field {
    width: 100%;
    position: relative;
}
.main-field .mask {
    background-color: rgba(0, 0, 0, 0.4); 
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    box-sizing: border-box;
    padding: 80px 40px 40px 50%;
    color: #e9f1f6;
    font-size: 18px;
    z-index: 99;
    opacity: 0;
    transition: all 0.4s;
    text-indent: 2em;
}
.main-field .mask:hover {
    opacity: 1;
}

.main-field .main-img {
    width: 100%;
    object-fit: contain
}
.bottom-field {
    background-color: rgba(40, 41, 46, 1);
    height: 300px;
    width: 100%;
    display: flex;
    align-items: center;
    box-sizing: border-box;
    padding: 0 100px;
}
.bottom-field .bottom-logo {
    width: 140px;
    height: 140px;
    background: url("/portal/img/pulan.jpg") no-repeat;
    background-size: 100% 100%;
}
.bottom-field .bottom-content {
    margin-left: 40px;
    font-size: 14px;
    color: #818181;
}