.about-bg{
    background-image: url('../image/about-bg.png');
    background-size: 100% auto;
    background-position: center top;
    background-repeat: no-repeat;
    padding: 50px 0;
}
.choose-img-a{
    min-height: 60px;
}
.describtion-choose-p{
    min-height: 150px;
}
.atf-single-feature-choose-div{
    border-top: 5px solid #3B83F6;
}
/* Brief introduction section */
.brief-introduction-area {
    margin: 100px 0;
    background-color: #F9FAFB;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    position: relative;
}

/* Blue vertical line */
.brief-introduction-area::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 40px;
    width: 4px;
    height: calc(100% - 80px);
    background-color: #1574FB;
}

/* Content wrapper */
.introduction-content {
    position: relative;
    padding-left: 40px;
    min-height: 150px;
}

/* Text content */
.text-content {
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.text-content h2 {
    font-size: 28px;
    font-weight: bold;
    color: #333333;
    margin-bottom: 20px;
}

.text-content p {
    font-size: 16px;
    color: #666666;
    line-height: 1.6;
}

/* Image container */
.image-container {
    position: absolute;
    top: 40%;
    right: 0;
    transform: translateY(-50%);
    width: 180px;
    height: auto;
    z-index: 1;
    background-color: #F9FAFB;
}

/* Removed dashed border box */

/* Stroke image */
.image-container img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    z-index: 1;
}

/* Responsive design */
@media (max-width: 768px) {
    .brief-introduction-area {
        padding: 30px;
    }

    .introduction-content {
        padding-left: 30px;
    }

    .text-content h2 {
        font-size: 24px;
    }

    .image-container {
        position: relative;
        width: 100%;
        max-width: 150px;
        margin: 20px 0 0 auto;
    }
}