@media screen and (max-width: 780px) {
    .pc {
        display: none;
    }
}

@media screen and (min-width: 781px) {
    .sp {
        display: none;
    }
}

.history .box {
    justify-content: space-between;
}

.history .box:not(:first-child) {
    padding-top: 100px;
}

.history .box p {
    margin-bottom: 30px;
}

@media screen and (min-width: 781px) {
    .headline_1 {
        font-size: 36px;
    }

    .history .box .left {
        flex: 1;
        margin-right: 98px;
    }

    .history .box:nth-child(2n) .left {
        margin-left: 98px;
        margin-right: 0;
    }

    .history .box:nth-child(2n) {
        flex-direction: row-reverse;
    }

    .history .box .right {
        width: calc(700 / 1458 * 100%);
    }

    .history .box .headline_1 {
        text-align: left;
        padding-left: 0;
        margin-left: 0;
        margin-bottom: 60px;
    }
}

@media screen and (max-width: 1480px) and (min-width: 781px) {
    .headline_1 {
        font-size: calc(36 * 3.8vw / 54);
    }

    .links a p {
        font-size: calc(30 * 3.8vw / 54);
    }

    .history .box:not(:first-child) {
        padding-top: calc(100 * 3.8vw / 54);
    }

    .history .box .left {
        margin-right: calc(98 * 3.8vw / 54);
    }

    .history .box:nth-child(2n) .left {
        margin-left: calc(98 * 3.8vw / 54);
    }

    .history .box .headline_1 {
        margin-bottom: calc(60 * 3.8vw / 54);
    }

    .history .box p {
        margin-bottom: calc(30 * 3.8vw / 54);
    }
}

@media screen and (max-width: 780px) {
    .headline_1 {
        font-size: calc(42 / 750 * 100vw);
    }

    .history .box {
        flex-direction: column-reverse;
    }

    .history .box:not(:last-child) {
        margin-bottom: calc(-60 / 750 * 100vw);
    }

    .history .box:not(:first-child) {
        padding-top: calc(120 / 750 * 100vw);
    }

    .history .box .left {
        margin-left: 0;
        margin-right: 0;
    }

    .history .box:first-of-type .headline_2 {
        font-size: calc(36 / 750 * 100vw);
    }

    .history .box .headline_2 {
        font-size: calc(30 / 750 * 100vw);
    }

    .history .box p {
        margin-bottom: calc(40 / 750 * 100vw);
    }

    .history .box img {
        height: calc(376.88 / 750 * 100vw);
        width: 100%;
        object-fit: cover;
        border-radius: 10px;
        margin-bottom: calc(60 / 750 * 100vw);
    }
}

.links ul {
    justify-content: center;
}

.links li {
    /* max-width: 30%; */
    margin: 0 30px;
}

.links a {
    position: relative;
    width: 444px;
    display: block;
    max-width: 100%;
    height: 296px;
}

.links a img {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-fit: cover;
    border-radius: 10px;
}

.links a p {
    color: #fff;
    position: relative;
    z-index: 10;
    text-align: center;
    font-size: 30px;
    font-weight: bold;
    padding-top: 26%;
}

.links a span {
    position: absolute;
    bottom: 10px;
    right: 10px;
}

@media screen and (max-width: 1480px) {
    .links a {
        width: calc(444 * 3.8vw / 54);
        height: calc(296 * 3.8vw / 54);
    }

    .links a p {
        font-size: calc(30 * 3.8vw / 54);
    }
}

@media screen and (max-width: 780px) {
    .links li {
        width: 100%;
        margin-left: 0;
        margin-right: 0;
    }

    .links li:not(:last-child) {
        margin-bottom: calc(60 / 750 * 100vw);
    }

    .links a {
        width: 100%;
        height: calc(446.67 / 750 * 100vw);
    }

    .links a p {
        padding-top: 30%;
        font-size: calc(48 / 750 * 100vw);
    }
}

.member {
    background-color: #f5f5f5;
    padding-top: 100px;
    padding-bottom: 160px;
}

.member .headline_2 {
    text-align: center;
    font-size: 30px;
    font-weight: bold;
    margin-bottom: 65px;
}

.member_list {
    display: flex;
    width: 100vw;
    overflow: hidden;
}

.member_list li {
    width: 110%;
    height: 100%;
    flex-shrink: 0;
    margin-right: 10px;
}

.member_list li:first-child {
    animation: slide1 60s -30s linear infinite;
}

.member_list li:last-child {
    animation: slide2 60s linear infinite;
}

@keyframes slide1 {
    0% {
        transform: translateX(100%);
    }

    to {
        transform: translateX(-100%);
    }
}

@keyframes slide2 {
    0% {
        transform: translateX(0);
    }

    to {
        transform: translateX(-200%);
    }
}

@media screen and (max-width: 1480px) {
    .member {
        padding-top: calc(100 * 3.8vw / 54);
        padding-bottom: calc(160 * 3.8vw / 54);
    }

    .member .headline_2 {
        font-size: calc(30 * 3.8vw / 54);
        margin-bottom: calc(65 * 3.8vw / 54);
    }
}

@media screen and (max-width: 780px) {
    .member {
        padding-top: calc(100 / 750 * 100vw);
        padding-bottom: calc(100 / 750 * 100vw);
    }

    .member .headline_2 {
        font-size: calc(32 / 750 * 100vw);
        margin-bottom: calc(60 / 750 * 100vw);
    }

    .member_list li {
        margin-right: 1vw;
    }
}