.article_header_primary {
    margin-bottom: 20px;
}

.column_title {
    font-size: 32px;
    font-weight: 500;
    color: #747474;
    margin-bottom: 10px;
}

.article_badge_group {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.article_header_secondary {
    width: 100%;
    display: flex;
    align-items: center;
}

.share_this_article_to_facebook {
    order: 2;
    width: 38px;
    height: 38px;
}

.author_detail {
    order: 1;
    margin-right: auto;
    color: #b2b2b2;
    font-size: 12px;
}

.author_name {
    display: block;
}

.publish_time {
    display: block;
}

.article_seperator {
    margin: 15px 0;
    background-color: #b2b2b2;
}

.article_body {
    width: 100%;
}

.article_img {
    display: block;
    width: 100%;
    margin-bottom: 15px;
}

.article_content {
    color: #555555;
    font-size: 16px;
}

.article_author {
    width: 100%;
    margin: 30px 0;
    border-top: 1px solid #b2b2b2;
    border-bottom: 1px solid #b2b2b2;
    padding: 30px;
}

.author_profile {
    width: 100%;
    display: flex;
    align-items: center;
}

.author_profile_img {
    width: 115px;
    display: block;
    margin-right: 15px;
    border-radius: 50%;
}

.author_description {
    width: calc(100% - 130px);
}

.author_title_name {
    display: block;
    width: 100%;
    color: #e66e0f;
    font-weight: 500;
    font-size: 16px;
    margin-bottom: 5px;
}

.author_description_name {
    display: block;
    width: 100%;
    color: #525a6a;
    font-weight: 500;
    font-size: 16px;
    margin-bottom: 5px;
}

.author_description_short {
    display: block;
    width: 100%;
    color: #555555;
    font-size: 12px;
}

.article_footer {
    width: 100%;
    margin-top: 10px;
}

.message_section {
    width: 100%;
}

.message_section_title {
    color: #747474;
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 24px;
}

.message_history {
    width: 100%;
}

.message_unit {
    width: 100%;
    margin-bottom: 30px;
    display: flex;
}

.message_user_profile {
    width: 50px;
    margin-right: 10px;
    flex: 0 0 50px;
    height: 50px;
}

.message_user_profile_img {
    width: 100%;
    height: 100%;
}

.message_user_part {
    flex: 1 1 auto;
}

.message_user_name {
    color: #525a6a;
    font-size: 16px;
    display: block;
    margin-bottom: 5px;
}

.message_content {
    font-size: 12px;
    color: #555555;
}

.leaving_message_section {
    width: 100%;
}

.unlogin_message_hint {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    background-color: #d4d4d4;
    color: #747474;
    font-size: 16px;
    text-align: center;
}

.leaving_message_block {
    display: flex;
}

.login_user_profile_img {
    display: block;
    flex: 0 0 50px;
    height: 50px;
    margin-right: 10px;
}

.leaving_message_content {
    flex: 1 1 auto;
    height: 150px;
    border: solid 1px #c3c3c3;
    background-color: #ffffff;
    resize: none;
    font-size: 14px;
    color: #525a6a;
    outline: none;
}

.leaving_message_submit_container {
    margin-top: 15px;
    display: flex;
    justify-content: flex-end;
}

.leaving_message_submit_btn {
    padding-left: 25px;
    padding-right: 25px;
    font-size: 12px;
    color: #ffffff;
    background-color: #e66e0f;
}


/* RWD Start =================================== */

@media (min-width: 640px) {
    .column_title {
        font-size: 32px;
    }
    .article_header {
        display: flex;
    }
    .article_header_primary {
        max-width: 400px;
        margin-bottom: 0;
        margin-right: auto;
    }
    .article_header_secondary {
        flex-direction: column;
        width: auto;
        align-items: flex-end;
        justify-content: flex-end;
    }
    .share_this_article_to_facebook {
        margin-bottom: 15px;
    }
    .author_detail {
        order: 2;
    }
    .author_detail {
        font-size: 14px;
    }
    .author_name,
    .publish_time {
        text-align: right;
    }
    .category-badge {
        font-size: 14px;
    }
    .article_seperator {
        margin: 20px 0;
        margin-top: 10px;
        background-color: #b2b2b2;
    }
    .article_content {
        font-size: 18px;
    }
    .author_profile_img {
        width: 140px;
    }
    .author_description_name {
        font-size: 18px;
    }
    .author_title_name {
        font-size: 18px;
    }
    .author_description_short {
        font-size: 14px;
    }
    .message_section_title {
        font-size: 24px;
    }
    .message_user_profile {
        width: 80px;
        margin-right: 20px;
        flex: 0 0 80px;
        height: 80px;
    }
    .message_user_name {
        font-size: 18px;
    }
    .message_content {
        font-size: 14px;
    }
    .login_user_profile_img {
        flex: 0 0 80px;
        height: 80px;
        margin-right: 20px;
    }
    .leaving_message_content {
        font-size: 16px;
    }
    .leaving_message_submit_btn {
        font-size: 14px;
    }
}

@media (min-width: 768px) {
    .message_content {
        font-size: 16px;
    }
    .author_description_short {
        font-size: 16px;
    }
    .author_description_name {
        font-size: 20px;
    }
    .author_title_name {
        font-size: 20px;
    }
    .message_user_name {
        font-size: 20px;
    }
    .share_this_article_to_facebook {
        width: 45px;
        height: 45px;
    }
    .unlogin_message_hint {
        padding: 20px;
        color: #747474;
        font-size: 18px;
    }
}

@media (min-width: 991px) {
    .unlogin_message_hint {
        padding: 25px;
        color: #747474;
        font-size: 20px;
        margin-top: 30px;
    }
}


/*
@media (min-width: 375px) {}
@media (min-width: 480px) {}
@media (min-width: 640px) {}
@media (min-width: 768px) {}
@media (min-width: 991px) {}
@media (min-width: 1024px) {}
@media (min-width: 1200px) {}
@media (min-width: 1350px) {}
*/