*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, dl, dd,
figure {
    margin: 0;
}

ul[class],
ol[class] {
    padding: 0;
    list-style: none;
}

img,
picture,
iframe {
    max-width: 100%;
    display: block;
}

/* <img> の width/height 属性（futawa_image_size_attrs()）は縦横比のためだけに使い、属性の高さで伸ばさない */
img {
    height: auto;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    font: inherit;
    color: inherit;
    border: 0;
    background: none;
}

button {
    cursor: pointer;
}

table {
    border-collapse: collapse;
    width: 100%;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}