/* ================================================== */
/* ページ汎用 */
/* ================================================== */

/* 目次 */
.index-list { column-gap:24px; display:grid; grid-template-columns:repeat(2, 1fr); row-gap:4px; }
.index-list li { font-size:16px; font-weight:700; line-height:28px; }
.index-list a { color:var(--bl); text-decoration:underline; text-underline-offset:.25em; transition:.3s; }
.index-list a:hover { opacity:.7; transition:.3s; }

/* 見出し */
.rules-name { font-size:20px; font-weight:900; margin-bottom:24px; }

/* トップへ戻るボタン */
.backtop a { background-image:url(../img/parts/rules/rules-back-top.png); background-position:center; background-repeat:no-repeat; background-size:cover; display:inline-block; position:fixed; transition:.3s; bottom:15svh; right:20px; height:60px; width:60px; }
.backtop a:hover { background-image:url(../img/parts/rules/rules-back-top-ov.png); transition:.3s; }

@container(max-width:375px) {

/* 目次 */
.index-list li { font-size:14px; }

}

@container(min-width:960px) {

/* 目次 */
.index-list { column-gap:24px; grid-template-columns:repeat(4, 1fr); row-gap:24px; }
.index-list li { font-size:18px; font-weight:800; line-height:29px; }

/* 見出し */
.rules-name { font-size:24px; margin-bottom:40px; }

/* トップへ戻るボタン */
.backtop a { bottom:20svh; right:10vw; height:100px; width:100px; }

}

/* ================================================== */
/* ページ項目処理 */
/* ================================================== */

/* 見出し */
.rules-item h3 { font-size:16px; font-weight:700; }

/* 号：１、２、３… */
@counter-style rules-number { suffix:"、"; symbols:"０" "１" "２" "３" "４" "５" "６" "７" "８" "９"; system:numeric; }
.nmb-list { list-style:rules-number; margin-block-start:8px; padding-inline-start:2em; }
.nmb-list li { font-size:16px; line-height:28px; }
.nmb-list li + li { margin-block-start:8px; }

/* レイアウト制御 */
.rules-list { display:flex; flex-direction:column; gap:24px; }

@container(min-width:960px) {

/* 見出し */
.rules-item h3 { font-size:18px; }

/* 号：１、２、３… */
.nmb-list li { font-size:18px; line-height:29px; }

}