.category-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-start;
    padding: 20px 0;
}
.category-list .item {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 5px;
    /* font-size: 1.2em; */
    font-size: 16px;
    font-weight: 600;
}
.category-list .item a {
    display: block;
    padding: 10px 20px;
    color: #333;
    text-decoration: none;
}
.category-list .item.active {
    background-color: #e0f7fa;
    border-color: #00acc1;
}

.whitepaper-list {
    display: flex;
    flex-wrap: wrap;
    gap: 5%;
    justify-content: flex-start;
    padding: 20px 0;
}
.whitepaper-list .card {
    display: flex;    
    width: 100%;
    margin-bottom: 50px;
    padding-bottom: 40px;
    border-bottom: 1px solid #ccc;
}
.whitepaper-list .card .image {
    margin-right: 40px;
    width: 200px;
    height: auto;
    overflow: hidden;
}
.whitepaper-list .card .image img {
    width: 100%;
    height: auto;
    object-fit: cover;
}
.whitepaper-list .card .text {
    position: relative;
    width: 100%;
    padding: 0.5em;
}
.whitepaper-list .card .text .title {
    font-size: 1.2em;
    font-weight: 600;
    margin-bottom: 0.5em;
    line-height: 1.5;
}
.whitepaper-list .card .text .description {
    font-size: 1em;
    line-height: 1.5em;
    word-wrap: break-word;
    word-break: auto-phrase;
    text-align: left;
}
.link {
    display: inline-block;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background-color: #1f5da6;
    border: solid 1px #1f5da6;
    border-radius: 5px;
    font-size: 14px;
    color: #fff;
}
.link::after {
    content: '';
    position: absolute;
    width: 7px;
    height: 7px;
    border-right: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(-45deg);
    top: 0;
    bottom: 0;
    right: 15px;
    margin: auto;
}
.link:hover{
    background-color: #fff;
    color: #1f5da6;
}
.link:hover::after {
    border-color: #1f5da6;
}
.link a {
    display: block;
    width: 250px;
    padding: 15px 20px;
    color: #fff;
    text-align: center;
}
.link:hover a {
    color: #1f5da6;
}
@media screen and (max-width: 768px) {
    .whitepaper-list .card {
        flex-direction: column;
        align-items: center;
    }
    .whitepaper-list .card .image {
        width: 40%;
        height: auto;
        margin: auto;
    }
    .whitepaper-list .card .text {
        margin-top: 20px;
        text-align: center;
    }
    .link {
        position: relative;
        bottom: unset;
        left: unset;
        transform: unset;
        text-align: center;
        margin-top: 10px;
    }
}


@media screen and (max-width: 480px) {
    .whitepaper-list .card .image {
        width: 70%;
    }
    .page-container .content.category-list {
        width: 87vw;
        padding-bottom: 0;
    }
    .category-list .item {
        flex: 0 0 48.4%;
        text-align: center;
    }
    .category-list .item a {
        font-size: 12px;
    }
}