body {
    font-family: "Noto Sans JP", sans-serif;
}

.hover-raise:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.hero-background {
    background-image: url("../img/index/esim_banner.jpg");
}

.site-logo {
    width: 10rem;
    height: auto;
}

.affiliate-button > a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    background-color: #4a4a4a;
    color: #ffffff;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.2s ease;
}

.affiliate-button > a:hover {
    background-color: #383838;
}

.affiliate-button > a:focus-visible {
    outline: 3px solid #86efac;
    outline-offset: 3px;
}

.advertisement-label {
    margin: 0 0 0.5rem;
    color: #6b7280;
    font-size: 0.75rem;
    line-height: 1;
    letter-spacing: 0.08em;
}

.affiliate-banner .advertisement-label {
    text-align: center;
}

.footer-advertisement {
    padding: 1.5rem 1rem;
    text-align: center;
}

.footer-advertisement-content {
    overflow-x: auto;
    white-space: nowrap;
}

.footer-advertisement-content > a {
    display: inline-block;
}

.footer-advertisement-content > a > img {
    display: block;
}