*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; } /* fixed要素(.top-bg等)が祖先のoverflowでクリップされないよう、横スクロール対策はhtmlレベルに統一 */
body { line-height: 1; }
img, picture, video, canvas { display: block; max-width: 100%; }
svg { display: block; }
input, button, textarea, select { font: inherit; }
p, h1, h2, h3, h4, h5, h6 { overflow-wrap: break-word; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
address { font-style: normal; }