/* 全画面共通のブランド・公開ヘッダー・フッター。TOPの寸法を基準とする。 */
:root {
    --site-navy: var(--color-ink, #142451);
    --site-blue: var(--color-primary, #154991);
    --site-teal: var(--color-secondary, #008781);
    --site-muted: #526887;
    --site-font: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
}
body {
    font-family: var(--site-font);
}
.site-container {
    width: calc(100% - 96px);
    max-width: 1264px;
    margin-inline: auto;
}
.site-brand {
    display: inline-flex;
    flex-shrink: 0;
    align-items: baseline;
    gap: 5px;
    color: var(--site-navy);
    font-family: 'Helvetica Neue', Arial, sans-serif;
    font-size: 28px;
    font-style: normal;
    font-weight: 400;
    letter-spacing: -1px;
    line-height: 1.2;
    text-decoration: none;
    white-space: nowrap;
}
.site-brand > strong {
    font: inherit;
    font-weight: 800;
}
.site-brand > span {
    font: inherit;
    color: inherit;
    font-weight: 400;
}
.site-header,
.site-footer {
    color: var(--site-navy);
    background: #fff;
    font-family: var(--site-font);
    font-size: 13px;
    line-height: 1.9;
    letter-spacing: 0.02em;
}
.site-header a,
.site-footer a {
    text-decoration: none;
}
.site-header :is(a, button):focus-visible,
.site-footer a:focus-visible,
.site-brand:focus-visible {
    outline: 3px solid #278dc3;
    outline-offset: 5px;
}
.site-skip {
    position: fixed;
    top: -80px;
    left: 16px;
    z-index: 100;
    padding: 10px 20px;
    color: var(--site-navy);
    background: #fff;
}
.site-skip:focus {
    top: 10px;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgb(255 255 255 / 97%);
    transition: box-shadow 220ms ease;
}
.site-header.is-scrolled {
    background: #fff;
    box-shadow: 0 4px 24px rgb(20 36 81 / 9%);
}
.site-header-inner {
    display: flex;
    align-items: center;
    gap: 32px;
    min-height: 68px;
}
.site-member-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 68px;
    gap: 20px;
    padding-block: 12px;
}
.site-brand-group {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    gap: 16px;
}
.site-audience {
    padding-left: 16px;
    border-left: 1px solid #d6e3f2;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}
.site-audience-media {
    color: var(--site-teal);
}
.site-audience-advertiser {
    color: var(--site-blue);
}
.site-nav {
    display: flex;
    align-items: center;
    gap: 24px;
    font-weight: 700;
}
.site-nav a {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 44px;
    color: inherit;
    white-space: nowrap;
}
.site-nav a::after {
    content: '';
    position: absolute;
    inset: auto 0 3px;
    height: 2px;
    background: var(--site-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 220ms ease;
}
.site-nav a:hover::after {
    transform: scaleX(1);
}
.site-header-actions {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    gap: 12px;
    margin-left: auto;
    font-weight: 700;
}
.site-header-login,
.site-header-signup {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 100px;
    min-height: 44px;
    padding: 8px 20px;
    border: 1px solid #c9d8ec;
    border-radius: 30px;
    color: var(--site-navy);
    transition:
        background-color 180ms ease,
        transform 180ms ease;
}
.site-header .site-header-signup {
    color: #fff;
    background: var(--site-blue);
    border-color: var(--site-blue);
}
.site-header .site-action-media {
    background: var(--site-teal);
    border-color: var(--site-teal);
}
.site-header :is(.site-header-login, .site-header-signup):hover {
    transform: translateY(-2px);
}
.site-menu-button {
    display: none;
}
.site-footer {
    flex-shrink: 0;
    padding-block: 56px 64px;
    border-top: 1px solid #edf2f8;
}
.site-footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 30px 40px;
}
.site-footer nav {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 28px;
    padding-top: 3px;
}
.site-footer nav a {
    color: inherit;
}
.site-footer-end {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
    margin-left: auto;
    color: var(--site-muted);
    font-size: 12px;
}
.site-footer-end a {
    color: inherit;
}
.site-footer small {
    font-size: 12px;
}
@media (max-width: 1199px) {
    .site-header-inner {
        flex-wrap: wrap;
        gap: 12px;
    }
    .site-nav {
        order: 4;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    .site-enhanced .site-nav {
        display: none;
        padding-bottom: 20px;
    }
    .site-enhanced .site-nav.is-open {
        display: flex;
    }
    .site-menu-button:not([hidden]) {
        display: grid;
        place-items: center;
        width: 44px;
        height: 44px;
        padding: 0;
        border: 0;
        color: var(--site-navy);
        background: transparent;
        cursor: pointer;
    }
    .site-menu-button svg {
        width: 26px;
        height: 26px;
    }
    .site-menu-close {
        display: none;
    }
    .site-menu-button[aria-expanded='true'] .site-menu-open {
        display: none;
    }
    .site-menu-button[aria-expanded='true'] .site-menu-close {
        display: block;
    }
}
@media (max-width: 767px) {
    .site-audience {
        display: none;
    }
    .site-footer-inner {
        flex-direction: column;
        gap: 24px;
    }
    .site-footer-end {
        margin-left: 0;
        align-items: flex-start;
    }
}
@media (max-width: 639px) {
    .site-container {
        width: calc(100% - 36px);
    }
    .site-brand {
        font-size: 24px;
    }
    .site-header-inner {
        gap: 6px;
    }
    .site-header-actions {
        gap: 6px;
        font-size: 12px;
    }
    .site-header-login,
    .site-header-signup {
        min-width: 0;
        min-height: 40px;
        padding: 7px 12px;
    }
    .site-nav {
        gap: 8px 22px;
    }
    .site-footer {
        padding-block: 40px;
    }
}
@media (prefers-reduced-motion: reduce) {
    .site-header,
    .site-header *,
    .site-footer * {
        transition: none !important;
    }
}