.form-sf-page {
    margin: 0;
    background: #fff;
    color: #222;
    font-family: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.8;
}

.form-sf-header {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 88px;
    padding: 20px 16px;
    border-bottom: 1px solid #e8e8e8;
    background: #fff;
}

.form-sf-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.form-sf-logo img {
    display: block;
    width: min(220px, 54vw);
    height: auto;
}

.form-sf-main {
    padding: 48px 0 64px;
}

.form-sf-article {
    width: min(100% - 32px, 960px);
    margin: 0 auto;
}

.form-sf-article > :first-child {
    margin-top: 0;
}

.form-sf-article > :last-child {
    margin-bottom: 0;
}

.form-sf-article .gform_wrapper {
    max-width: 960px;
    margin-right: auto;
    margin-left: auto;
}

.form-iframe-wrapper {
    width: 100%;
    max-width: 960px;
    margin: 0 auto 40px;
}

.form-iframe-wrapper iframe {
    display: block;
    width: 100% !important;
    height: 1300px;
    min-height: 850px;
    border: none;
}

.form-sf-article iframe[src*="go.id.ikubunkan.ed.jp"],
.form-sf-article iframe[data-src*="go.id.ikubunkan.ed.jp"] {
    display: block;
    width: 100% !important;
    height: 1300px;
    min-height: 850px;
    border: none !important;
}

@media (max-width: 600px) {
    .form-sf-header {
        min-height: 72px;
        padding: 16px;
    }

    .form-sf-main {
        padding: 32px 0 48px;
    }

    .form-iframe-wrapper iframe {
        height: 1500px;
    }

    .form-sf-article iframe[src*="go.id.ikubunkan.ed.jp"],
    .form-sf-article iframe[data-src*="go.id.ikubunkan.ed.jp"] {
        height: 1500px;
    }
}