/* ===== モダンCSS リセット ===== */
*,*::before,*::after {
    box-sizing: border-box;
}

html {
    -moz-text-size-adjust: none;
    -webkit-text-size-adjust: none;
    text-size-adjust: none;
}

html, body,
 h1, h2, h3, h4, h5, h6,
 a, p, span,
 em, small, strong,
 sub, sup,
 mark, del, ins, strike,
 abbr, dfn,
 blockquote, q, cite,
 code, pre,
 ol, ul, li, dl, dt, dd,
 div, section, article,
 main, aside, nav,
 header, hgroup, footer,
 img, figure, figcaption,
 address, time,
 audio, video,
 canvas, iframe,
 details, summary,
 fieldset, form, label, legend,
 table, caption,
 tbody, tfoot, thead,
 tr, th, td {
   margin: 0;
   padding: 0;
   border: 0;
 }

ul[role='list'], ol[role='list'] {
    list-style: none;
}

body {
    min-height: 100vh;
    line-height: 1.5;
    font-family: Arial, sans-serif;
    color: #333;
    background-color: #fff;
}

h1, h2, h3, h4, button, input, label {
    line-height: 1.1;
}

h1, h2, h3, h4 {
    text-wrap: balance;
}

a:not([class]) {
    text-decoration-skip-ink: auto;
    color: currentColor;
}

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

input, button, textarea, select {
    font: inherit;
}

textarea:not([rows]) {
    min-height: 10em;
}

:target {
    scroll-margin-block: 5ex;
}

/* ===== 基本レイアウト ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}