.section {
    padding: 100px 0;
}
@media(max-width: 768px) {
    .section {
        padding: 60px 0;
    }
}

/* section-01 */
@media(max-width: 768px) {
    .section-01 .col-md-6:nth-child(2) {
        margin-top: 40px;
    }
}

/* section-02 */
.section.section-02 {
    background-color: rgb(245,246,248);
}

.section.section-02 .row {
    margin: 100px 0;
}
@media(max-width: 768px) {
    .section.section-02 .row {
        margin: 40px 0;
    }
}

.section.section-02 h5 {
    margin: 0 40px;
    padding: 0 48px;
    font-weight: 300;
}
@media(max-width: 768px) {
    .section.section-02 h5 {
        margin: 24px 0;
        padding: 0 16px;
        font-weight: 300;
    }
}

/* section3 */
.section-03 .section-item {
    display: flex;
}
@media(max-width: 768px) {
    .section-03 .section-item {
        flex-direction: column;
        margin-bottom: 80px;
    }
}

.section-03 .history-left {
    flex: 1;
}

.section-03 .history-right {
    flex: 3;
}

.section-03 .history-left h3 {
    font-weight: 600;
}

.section-03 .history-left img {
    margin-top: 24px;
}

@media(max-width: 768px) {
    .section-03 .history-right {
        margin-top: 32px;
    }
}

.section-03 .history-right > div {
    margin-left: 80px;
}
@media(max-width: 768px) {
    .section-03 .history-right > div {
        margin-left: 0;
    }
}

.section-03 .history-right h4 {
    margin-bottom: 0;
}

.section-03 .event-part {
    display: flex;
}

.section-03 .events {
    margin-top: 12px;
    padding-bottom: 40px;
    flex: 1;
}

.section-03 .history-right h6 {
    color: var(--darkgray)
}





/* history decoration */
.decor {
    width: 40px;
    display: flex;
    flex-direction: column;
    /* background-color: yellow; */
}

.decor > :nth-child(1),
.decor > :nth-child(3) {
    flex: 1;
    display: flex;
}

.decor > :nth-child(1) > span,
.decor > :nth-child(3) > span {
    flex: 1;
}

.decor > :nth-child(1) > span:first-child,
.decor > :nth-child(3) > span:first-child {
    border-right: 1px solid var(--lightblue);
}

.decor > :nth-child(2) {
    width: 16px;
    height: 16px;
    align-self: center;
    border-radius: 8px;
    border: 4px solid var(--mainColor);
}

.decor-line {
    width: 40px;
    display: flex;
    /* background-color: cyan; */
}

.decor-line > span {
    flex: 1;
}

.decor-line > span:first-child {
    border-right: 1px solid var(--lightblue);
}
/* end: history decoration */


/* section-04 */ 
.section-04 {
    background-color: #fafafa;
}

.section-04 h4 {
    font-size: 1.2em;
    font-weight: 300;
    white-space: pre-line;
    line-height: 1.4;
}

.section-04 .row > div {
    display: flex;
    justify-content: center;
}
@media(max-width: 768px) {
    .section-04 .row > div {
        margin-bottom: 40px;
    }
}

.global-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.global-item .circle {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: white;
}
@media(max-width: 768px) {
    .global-item .circle {
        width: 240px;
        height: 240px;
    }
}

.global-item .circle img {
    width: 72%;
}