.introGre {
    /* background-color: #e9ecef; */
    font-family: "Roboto", "Noto Sans KR", sans-serif;
    font-weight: 500;
    font-size: 3rem;
    letter-spacing: 0.1em;
    text-align: center;
    padding: 40px 0;
    position: relative;
    overflow: hidden;
    color: #333;
    padding-bottom: 45px;
}
/* .introGreSeparate {
    content: '';
    width: 145px;
    height: 2px;
    background-color: #4CAF50;
    margin-top: -36px;
    margin-bottom: 1rem;
    position: relative;
    margin-left: auto;
    margin-right: auto;

} */
.introGreText {
    width: 80%;
    margin: 0 auto;

}
.introGreText > .introGreInText {
    padding: 20px;
    font-family: 'Pretendard-Regular';
    font-size: 22px;
    line-height: 2.5;
    color: #333;
    margin-top: 20px;
    margin-bottom: 1.2rem;
    word-break: keep-all;
    text-align: left;
}

@media (max-width: 1200px) {
    .introGre {
        font-size: 2.5rem;
        padding: 35px 0;
    }
    
    .introGreText {
        width: 85%;
    }
    
    .introGreText > .introGreInText {
        font-size: 20px;
        line-height: 2.3;
        padding: 18px;
        text-align: left;
    }
}

@media (max-width: 1023px) {
    .introGreText {
        width: 90%;
    }

    .introGreText > .introGreInText {
        font-size: 20px;
        padding: 15px;
        line-height: 2.2;
        text-align: left;
    }
}

@media (max-width: 1024px) {
    .introGre {
        font-size: 2.2rem;
        padding: 30px 0;
    }
    
    .introGreText > .introGreInText {
        font-size: 20px;
        padding: 15px;
        text-align: left;
    }
}

@media (max-width: 767px) {
    .introGreText {
        width: 95%;
    }

    .introGreText > .introGreInText {
        font-size: 18px;
        padding: 10px;
        line-height: 2;
        margin-top: 10px;
        margin-bottom: 1rem;
        text-align: left;
    }
}

@media (max-width: 768px) {
    .introGre {
        font-size: 1.8rem;
        padding: 25px 0;
        padding-bottom: 35px;
    }
    
    .introGreText > .introGreInText {
        font-size: 18px;
        line-height: 2.2;
        padding: 10px;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .introGre {
        font-size: 1.5rem;
        padding: 20px 0;
        padding-bottom: 30px;
    }
    
    .introGreText > .introGreInText {
        font-size: 16px;
        line-height: 2.0;
        padding: 10px;
        text-align: left;
    }
}

.introGreName {
    text-align: center;
    position: relative;
    font-family: "Gowun Dodum", "Noto Sans KR", sans-serif;
    font-size: 30px;
    color: #444;
    letter-spacing: 0.05em;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
    margin: 30px 0;
}
.introGreName > span {
    position: relative;
    left: 20px;
    font-size: 50px;
    font-family: 'Ownglyph_wiseelist-Rg';
    letter-spacing: 30px;
}

/* 반응형 스타일 */
@media (max-width: 1024px) {
    .introGreName {
        font-size: 26px;
        padding: 35px 15px;
        margin: 25px 0;
    }
    
    .introGreName > span {
        font-size: 40px;
        letter-spacing: 20px;
        left: 15px;
    }
}

@media (max-width: 768px) {
    .introGreName {
        font-size: 22px;
        padding: 30px 15px;
        margin: 20px 0;
    }
    
    .introGreName > span {
        font-size: 35px;
        letter-spacing: 15px;
        left: 10px;
    }
}

@media (max-width: 600px) {
    .introGreName {
        font-size: 20px;
        flex-direction: column;
        gap: 15px;
        padding: 40px 20px;
        margin: 30px 0;
    }
    
    .introGreName > span {
        font-size: 30px;
        letter-spacing: 12px;
        left: 0;
        line-height: 1.2;
    }
}

@media (max-width: 480px) {
    .introGreName {
        font-size: 18px;
        padding: 35px 15px;
        margin: 25px 0;
        gap: 12px;
    }
    
    .introGreName > span {
        font-size: 28px;
        letter-spacing: 10px;
        left: 0;
    }
}

@media (max-width: 360px) {
    .introGreName {
        font-size: 16px;
        padding: 30px 10px;
        margin: 20px 0;
        gap: 10px;
    }
    
    .introGreName > span {
        font-size: 24px;
        letter-spacing: 8px;
        left: 0;
    }
}
.hisTop {
    font-family: "Roboto", "Noto Sans KR", sans-serif;
    font-weight: 500;
    font-size: 3rem;
    letter-spacing: 0.1em;
    text-align: center;
    padding: 40px 0;
    position: relative;
    overflow: hidden;
    padding-bottom: 45px;
    background-color: #e9ecef;
}
.hisMain {
    background-color: #e9ecef;
}

.timeline {
    position: relative;
    padding: 3rem 0;

}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: linear-gradient(to bottom, #7ccf7f, #4CAF50, #e9ecef);
    z-index: 0;
    clip-path: inset(0 0 100% 0);
    transition: clip-path 2s ease-out;

}
.timeline.animated::before {
    clip-path: inset(0 0 0 0);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    display: flex;
    align-items: flex-start;

}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
    text-align: left;
}

.timeline-item:nth-child(even) {
    text-align: left;
    justify-content: flex-start;
}

.timeline-connector {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: white;
    border: 3px solid;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    border-color: #4CAF50;
    transition: transform 0.4s ease, box-shadow 0.3s ease, background-color 0.3s ease;

}

.timeline-connector {
    border-color: #4CAF50;
}

.timeline-content {
    background-color: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    max-width: 45%;
    flex: 0 0 45%;
    margin: 0 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;

}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.timeline-connector:is(:hover) {
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
}
.timeline-connector.hover-force {
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
}
.timeline-content.hover-force-content {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}
.timeline-connector.hover-force,
.timeline-connector:hover {
    background-color: #4CAF50;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
    border-color: #fff;
}
.timeline-connector::after {

    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 80%;
    height: 80%;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: #333;
    transition: transform 0.4s ease, opacity 0.4s ease, border-top-color 0.3s ease;
    opacity: 0;
    box-sizing: border-box;
}

.timeline-connector.hover-force::after,
.timeline-connector:hover::after {

    transform: translate(-50%, -50%) scale(1) rotate(360deg);
    opacity: 1;
    border-top-color: #fff;
    border-bottom-color: #fff;
}

.timeline-year {
    font-weight: 700;
    margin-bottom: 0.7rem;
    font-size: 1.3rem;
    color: #333;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
    font-family: 'GangwonEduPowerExtraBoldA';
}

.timeline-text {
    color: #555;
    line-height: 1.5;
    font-family: "Noto Sans KR", serif;
}

.timeline-icon {
    font-size: 1.7rem;
    margin-bottom: 0.7rem;
    display: block;
    color: #3498db;
}
.timeline-item:nth-child(4n+2) .timeline-icon {
    color: #e74c3c;
}
.timeline-item:nth-child(4n+3) .timeline-icon {
    color: #9b59b6;
}
.timeline-item:nth-child(4n+4) .timeline-icon {
    color: #f39c12;
}
@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
        width: 2px;
    }

    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 2rem;
        text-align: left;
    }

    .timeline-item:nth-child(even),
    .timeline-item:nth-child(odd) {
        flex-direction: column;
        text-align: left;
    }

    .timeline-connector {
        left: 20px;
        top: 10px;
        width: 30px;
        height: 30px;

    }

    .timeline-content {
        max-width: 90%;
        margin: 0 0 0 40px;
        flex: 0 0 auto;
        width: calc(100% - 40px);
        padding: 1rem;
    }

    .timeline-year {
        font-size: 1.1rem;

    }
}

@media (max-width: 480px) {
    .timeline-content {
        padding: 0.8rem;
        margin-left: 35px;
    }
    .timeline-connector {
        width: 25px;
        height: 25px;
        top: 8px;
    }
}

.wrap > .vision {
    background-color: #ffffff;
    font-family: "Roboto", "Noto Sans KR", sans-serif;
    font-weight: 500;
    font-size: 3rem;
    letter-spacing: 0.1em;
    text-align: center;
    padding: 40px 0;
    position: relative;
    overflow: hidden;
    color: #333;
    padding-bottom: 45px;
}
/* .wrap > .vision > span {
    color: #4CAF50;
} */

.vision-image {
    width: 50%;
    height: 1200px;  
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 8px;
    margin: 0 auto;
    margin-bottom: 40px;
}

/* 반응형 */
@media (max-width: 1024px) {
    .vision-image {
        width: 70%;
        height: 800px;
    }
}

@media (max-width: 768px) {
    .vision-image {
        width: 90%;
        height: 600px; 
    }
}

@media (max-width: 480px) {
    .vision-image {
        width: 95%;
        height: 500px;  
    }
}