.about-visual {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7.5rem 0 3.5rem;
}

.about-visual > .side-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 15.5rem;
    height: 100%;
    gap: 3.3rem;
}

.about-visual > .side-content > div {
    text-align: center;
}

.about-visual > .side-content > div > h4 {
    color: #FF7E46;
    text-align: center;
    font-size: 1.5125rem;
    font-style: normal;
    font-weight: var(--font-weight-600, 600);
    line-height: var(--line-height-38, 1.9rem); /* 125.62% */
    letter-spacing: var(--letter-spacing-0_35, 0.0175rem);
    margin-bottom: 0.35rem;
}

.about-visual > .side-content > div > span {
    color: #000;
    text-align: center;
    font-size: 1.31795rem;
    font-style: normal;
    font-weight: var(--font-weight-600, 600);
    line-height: var(--font-size-32, 1.6rem); /* 121.399% */
    letter-spacing: var(--letter-spacing-0_35, 0.0175rem);
}

.about-visual > .side-content > p {
    color: #000;
    text-align: center;
    font-size: 0.9297rem;
    font-style: normal;
    font-weight: var(--font-weight-300, 300);
    line-height: var(--line-height-26, 1.3rem); /* 139.832% */
    letter-spacing: var(--letter-spacing-0_07, 0.0035rem);
}

.about-visual > .center-logo {
    position: relative;
}

.about-visual > .center-logo > .symbol {
    width: 32.5711rem;
    height: auto;
}

.about-visual > .center-logo > .textlogo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60%;
    height: auto;
}

.about-slide-header {
    margin-bottom: 2.46rem;
}

.about-slide-header > h3 {
    color: #000;
    font-size: 2.26875rem;
    font-style: normal;
    font-weight: 600;
    line-height: 2.7rem; /* 119.008% */
    letter-spacing: 0.0175rem;
    margin-bottom: 0.82rem;
}

.about-slide-header > p {
    color: #444;
    font-size: 1.2rem;
    font-style: normal;
    font-weight: 300;
    line-height: 1.86rem; /* 139.832% */
    letter-spacing: 0.0035rem;
}

#aboutSwiper {
    position: relative;
}

#aboutSwiper .swiper-slide > img {width: 100%;}

.swiper-menu-wrap {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 1;
}

.swiper-menu-list {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.15rem;
}

.swiper-menu-list > li {
    padding: 0.825rem;
    background: rgba(255, 255, 255, 0.80);
    text-align: center;
    color: #444;
    font-size: 0.9297rem;
    font-style: normal;
    font-weight: 300;
    line-height: 1.3rem; /* 139.832% */
    letter-spacing: 0.0035rem;
    cursor: pointer;
}

.swiper-menu-list > li.active {
    font-weight: 700;
}

.historys {
    margin-top: 4.67rem;
}

.historys > ul {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    justify-items: center;
}

.historys > ul > li {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 2.37rem;
    width: 100%;
    justify-content: space-between;
    padding: 0 3.5rem;
}

.historys > ul > li > strong {
    color: #000;
    font-size: 2.26875rem;
    font-style: normal;
    font-weight: 600;
    line-height: 2.7rem; /* 119.008% */
    letter-spacing: 0.0175rem;
}

.historys > ul > li > p {
    color: #444;
    font-size: 0.9297rem;
    font-style: normal;
    font-weight: 300;
    line-height: 1.3rem; /* 139.832% */
    letter-spacing: 0.0035rem;
}

.historys > ul > li + li:before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    display: block;
    width: 0.05rem;
    height: 80%;
    background: #000;
}

.about-section {
    margin-top: 10.98rem;
}

.about-section > h3 {
    color: #000;
    font-size: 1.78595rem;
    font-style: normal;
    font-weight: 700;
    line-height: 1.89rem; /* 105.827% */
    letter-spacing: 0.017rem;
    text-transform: uppercase;
}

.about-section > p {
    color: #444;
    font-size: 1.2rem;
    font-style: normal;
    font-weight: 300;
    line-height: 1.86rem; /* 139.832% */
    letter-spacing: 0.0035rem;
    margin-top: 1.47rem;
    margin-bottom:1.47rem;
}

.about-section > .about-section-content {
    width: 100%;
    margin: 2.46rem auto 2.46rem;
}

.cert-swiper .swiper-slide {
    width: auto;
    text-align: center;
}

.cert-swiper .swiper-slide > img {
    width: 100%;
}

.cert-swiper .swiper-slide > h4 {
    margin: 1rem;
    color: #444;
    font-size: 0.9297rem;
    font-style: normal;
    font-weight: 300;
    line-height: 1.3rem; /* 139.832% */
    letter-spacing: 0.0035rem;
}

.swiper-button-group {
    margin: 3.71rem 0;
    display: flex;
    justify-content: center;
    gap: 0.2rem;
}

.swiper-button-group > button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 0;
    background: #000;
    color: #FFF;
    transition: all 0.25s;
}

.swiper-button-group > button.swiper-button-disabled {
    border: 1px solid #BFBFBF;
    background: #FFF;
    color: #383838;
}

.video-container {
    position:relative;
    height:0;
    padding-bottom:56.25%;
  }
  
  .video-container iframe {
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:100%;
  }
@media screen and (max-width: 1199px) {
    .about-visual > .side-content {
        width: 20.5882vw;
    }
    
    .about-visual > .center-logo > .symbol {
        width: 35.2941vw;
    }

    .historys > ul {
        grid-template-columns: repeat(2, 1fr);
    }

    .historys > ul > li {
        padding: 3.5rem;
    }

    .historys > ul > li + li:before {
        display: none;
    }

    .historys > ul > li + li:nth-child(2n) {
        border-left: 0.05rem solid #000;
    }

    .historys > ul > li + li:not(:nth-child(-n+2)) {
        border-top: 0.05rem solid #000;
    }
}

@media screen and (max-width: 768px) {
    .about-visual {
        flex-direction: column;
        padding: 10.4167vw 0 6.3229vw;
        gap: 6.5104vw;
    }
    
    .about-visual > .side-content {
        width: 100%;
    }
    
    .about-visual > .side-content > div > h4 {
        font-size: 4.4271vw;
        line-height: 4.6875vw;
        margin-bottom: 1.5625vw;
    }
    
    .about-visual > .side-content > div > span {
        font-size: 3.1250vw;
        line-height: 3.3854vw;
    }
    
    .about-visual > .side-content > p {
        font-size: 3.6vw;
        line-height: 4.8vw;
        font-weight: 400;
    }
    
    .about-visual > .center-logo > .symbol {
        width: 100%;
    }
    
    .about-slide-header {
        margin: 5.2083vw auto 5.2083vw;
    }
    
    .about-slide-header > h3 {
        font-size: 4.8271vw;
        line-height: 5.7292vw;
    }
    
    .about-slide-header > p {
        font-size: 3.2vw;
        line-height: 4.24vw;
    }
    
    .swiper-menu-list {
        gap: 0.2604vw;
    }
    
    .swiper-menu-list > li {
        padding: 1.5625vw;
        font-size: 1.9531vw;
        line-height: normal;
    }
    
    .historys {
        margin-top: 7.8125vw;
    }
    
    .historys > ul > li {
        padding: 3.9063vw;
        gap: 3.9063vw;
    }
    
    .historys > ul > li > strong {
        font-size: 4.6875vw;
        line-height: 4.9479vw;
    }
    
    .historys > ul > li > p {
        font-size: 2.6vw;
        line-height: 3.6042vw;
    }
    
    .about-section {
        margin-top: 19.5313vw;
        margin-bottom:19.5313vw;
    }
    
    .about-section > h3 {
        font-size: 4.2458vw;
        line-height: 5.1667vw;
    }
    
    .about-section > p {
        font-size: 3.2vw;
        line-height: 3.6042vw;
        margin-top: 2.8646vw;
    }
    
    .about-section > .about-section-content {
        margin: 5.2083vw auto 5.2083vw;
    }
    
    .cert-swiper .swiper-slide {
        width: 31.9010vw;
    }
    
    .cert-swiper .swiper-slide > h4 {
        margin-top: 2.0833vw;
        font-size: 1.9531vw;
        line-height: 2.6042vw;
    }
    
    .swiper-button-group {
        margin: 4.1667vw 0;
        gap: 0.7813vw;
    }
    
    .swiper-button-group > button {
        width: 5.2083vw;
        height: 5.2083vw;
    }
}