h2.sub-page-title {
    font-size: 24px;
    font-weight: bold;
    line-height: 1;
    padding-bottom: 20px;
    border-bottom: solid 2px #C8C8CA;
}

.sub-page-nav-links {
    display: flex;
    justify-content: center;
    gap: 5%;
    margin: 80px 0 120px;
}

.sub-page-nav-list {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #ffffff;
    padding: 20px;
    min-width: 20%;
    aspect-ratio: 1 / 1;
    justify-content: center;
    border-radius: 50%;
    box-shadow: 0px 4px 6px 2px rgba(0, 0, 0, 0.1);
}

.sub-page-nav-list:after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    translate: -50% -50%;
    width: 0;
    height: 0;
    border-style: solid;
    border-right: 30px solid transparent;
    border-left: 30px solid transparent;
    border-top: 30px solid #00e8d0;
    border-bottom: 0;
}

.sub-page-nav-list p {
    text-align: center;
    font-size: 14px;
    line-height: 1.4;
}

.sub-page-nav-list img {
    height: 4.5em;
    width: auto;
    margin-top: 10px;
}

.sub-page-content {
    background-color: #fefefe;
    padding: 40px;
    box-shadow: 0px 4px 6px 2px rgba(0, 0, 0, 0.1);
}

.sub-page-content:not(:first-child) {
    margin-top: 80px;
}

.sub-page-content-header {
    padding-bottom: 20px;
    border-bottom: solid 2px #00E8D0;
}

h3.sub-page-content-title {
    font-size: 20px;
    font-weight: bold;
    line-height: 1;
}

.sub-page-content-wrapper {
    margin-top: 40px;
}

.sub-page-content-title-area {
    display: flex;
    align-items: center;
    gap: .5em;
    margin-bottom: 14px;
}

.sub-page-title-icon {
    display: flex;
    width: 1em;
    height: 1em;
    border-radius: 50%;
    background: rgb(0, 218, 233);
    background: linear-gradient(90deg, rgba(0, 218, 233, 1) 0%, rgba(0, 232, 208, 1) 100%);
    align-items: center;
    justify-content: center;
}

.sub-page-title-icon img {
    display: none;
    width: 50%;
}

.sub-page-content-wrapper h4 {
    font-size: 18px;
    font-weight: bold;
    line-height: 1;
    width: calc(100% - 2em);
}

.sub-page-main {
    display: flex;
    justify-content: space-between;
}

.sub-page-content-img {
    width: 38%;
    box-shadow: 0px 0px 6px 2px rgba(0, 0, 0, 0.1);
}

.sub-page-content-text {
    width: 60%;
    line-height: 1.8;
    letter-spacing: 0.08em;
}

.sub-page-content-text p:not(:first-child) {
    margin-top: 10px;
}

.sub-page-content-wrapper .sub-page-main+.sub-page-main {
    margin-top: 30px;
}

/****************
*****************
画面幅が768px以下
*****************
****************/
@media screen and (max-width: 768px) {
    h2.sub-page-title {
        font-size: 20px;
        padding-bottom: 14px;
    }

    .sub-page-nav-links {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 20px;
        margin: 40px 0 60px;
    }

    a.sub-page-nav-list {
        display: flex;
        aspect-ratio: unset;
        border-radius: unset;
        flex-direction: row-reverse;
        align-items: center;
        gap: 10px;
        padding: 10px 0px 10px 0;
    }

    .sub-page-nav-list:after {
        position: absolute;
        top: 50%;
        left: auto;
        right: 0;
        translate: -50% -50%;
        border-right: 10px solid transparent;
        border-left: 10px solid transparent;
        border-top: 14px solid #00e8d0;
    }

    .sub-page-nav-list p {
        text-align: start;
    }

    .sub-page-nav-list img {
        height: auto;
        width: 3.5em;
        margin-top: 0px;
    }

    .sub-page-content:not(:first-child) {
        margin-top: 40px;
    }

    .sub-page-content {
        padding: 20px;
    }

    .sub-page-content-header {
        padding-bottom: 14px;
    }

    h3.sub-page-content-title {
        font-size: 18px;
    }

    .sub-page-content-wrapper {
        margin-top: 30px;
    }

    .sub-page-content-title-area {
        margin-bottom: 10px;
    }

    .sub-page-content-title-area h4 {
        font-size: 16px;
    }

    .sub-page-main {
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }

    .sub-page-content-img {
        width: 100%;
    }

    .sub-page-content-text {
        width: 95%;
        line-height: 1.6;
        letter-spacing: 0.08em;
    }

    .sub-page-content-text p:not(:first-child) {
        margin-top: 4px;
    }

    .sub-page-content-wrapper .sub-page-main+.sub-page-main {
        margin-top: 20px;
    }
}