/* 読みもの */
.atabs { margin: 8px 0 28px; }
.alist-big { display: grid; gap: 0; }
.aitem { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 28px; padding: 28px 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.aitem:hover h2 { text-decoration: underline; }
.aitem .cv { border-radius: var(--r-m); overflow: hidden; aspect-ratio: 16 / 10; background: var(--paper-3); }
.aitem .cv svg { width: 100%; height: 100%; }
.aitem h2 { font-size: 21px; line-height: 1.55; margin: 10px 0 8px; }
.aitem p { color: var(--ink-2); margin: 0 0 10px; font-size: 15px; }
.aitem .meta { font-size: 14px; color: var(--ink-3); }
@media (max-width: 760px) { .aitem { grid-template-columns: 120px minmax(0, 1fr); gap: 14px; padding: 18px 0; } .aitem h2 { font-size: 16px; margin: 6px 0 4px; } .aitem p { display: none; } }
.read-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 48px; align-items: start; }
@media (max-width: 960px) { .read-grid { grid-template-columns: minmax(0, 1fr); } }
.side-box { background: var(--paper-2); border-radius: var(--r-l); padding: 22px; }
.side-box + .side-box { margin-top: 16px; }
.side-box h2 { font-size: 17px; margin-bottom: 10px; }
.side-box ul { list-style: none; padding: 0; margin: 0; }
.side-box li { padding: 10px 0; border-top: 1px solid var(--line); font-size: 15px; }
.side-box li b { display: block; }
.side-box li span { color: var(--ink-2); font-size: 14px; }

/* 記事 */
.art { max-width: 720px; margin: 0 auto; }
.art-h { font-size: 34px; line-height: 1.5; font-weight: 800; margin: 14px 0 16px; }
@media (max-width: 640px) { .art-h { font-size: 25px; } }
.art-lead { font-size: 18px; line-height: 1.85; color: var(--ink-2); margin: 0 0 20px; }
.byline { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 15px; color: var(--ink-2); padding: 16px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.byline b { color: var(--ink); font-weight: 600; }
.art-cover { margin: 28px 0 8px; border-radius: var(--r-l); overflow: hidden; aspect-ratio: 16 / 8; }
.art-cover svg { width: 100%; height: 100%; }
.art-body { font-size: 17px; line-height: 2; }
.art-body p { margin: 0 0 24px; }
.art-body h2 { font-size: 23px; line-height: 1.5; margin: 52px 0 18px; }
.art-body .table-wrap { margin: 8px 0 8px; }
.art-body table.data { font-size: 16px; }
.art-body .fig-note { font-size: 14px; color: var(--ink-2); line-height: 1.75; }
.art-body figure.photo { margin: 32px 0; }
.art-body figure.photo .ph { aspect-ratio: 3 / 2; border-radius: var(--r-m); background: linear-gradient(160deg, #D9DEE3 0%, #CFC8BF 55%, #8F8A84 55.5%, #B9B2A9 100%); }
.art-body figcaption { font-size: 14px; color: var(--ink-2); margin-top: 10px; line-height: 1.7; }
.kind { display: inline-block; font-size: 14px; line-height: 1; padding: 4px 7px; border-radius: 5px; margin-right: 6px; vertical-align: 2px; font-weight: 700; }
.kind.calc { background: #FBEFE6; color: #8A3A06; }
.kind.obs { background: #E6F0E8; color: #245C33; }
.kind.guess { background: var(--paper-3); color: #3D3833; border: 1px dashed var(--ink-3); }
.art-links { background: var(--paper-2); border-radius: var(--r-l); padding: 20px 22px; margin: 40px 0; }
.art-links h2 { font-size: 16px; margin-bottom: 6px; }
.art-links a { display: block; padding: 6px 0; font-weight: 600; }
.art-facts { border-top: 2px solid var(--ink); padding-top: 8px; margin-top: 48px; font-size: 15px; line-height: 1.85; }
.art-facts h2 { font-size: 16px; margin: 20px 0 4px; }
.art-facts p { margin: 0; color: var(--ink-2); }
.author { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 16px; padding: 22px; border-radius: var(--r-l); border: 1px solid var(--line); margin-top: 32px; }
.author .av { width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, #E9DCCB, #CFC2B2); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 20px; color: #5A4A3A; }
.author b { font-size: 16px; }
.author p { margin: 2px 0 0; font-size: 15px; color: var(--ink-2); }
.ad-slot { margin-top: 48px; border: 1px dashed var(--line-2); border-radius: var(--r-m); padding: 28px; text-align: center; color: var(--ink-3); font-size: 14px; }

/* 説明のページ */
.doc { max-width: 800px; }
.doc .lead { margin-bottom: 8px; }
.doc h2 { font-size: 24px; margin: 48px 0 14px; padding-top: 28px; border-top: 1px solid var(--line); }
.doc h3 { font-size: 18px; margin: 28px 0 8px; }
.doc ol, .doc ul { padding-left: 1.3em; }
.doc li { margin: 8px 0; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 0; }
.steps { list-style: none; padding: 0; counter-reset: s; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 14px; padding: 16px 0; border-top: 1px solid var(--line); margin: 0; }
.steps li::before { content: counter(s); width: 34px; height: 34px; border-radius: 50%; background: var(--ink); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.steps b { display: block; }
.writers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 640px) { .writers { grid-template-columns: minmax(0, 1fr); } }
.gw { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; }

/* 手直し（第2版の3）：本文は白い欄に */
body.inner .doc { background: #fff; border-radius: 20px; padding: 8px 48px 48px; margin-top: 8px; box-shadow: 0 1px 2px rgba(31, 28, 25, .04); }
body.inner .doc .crumbs { padding-top: 24px; }
body.inner .art { background: #fff; border-radius: 20px; padding: 8px 56px 48px; margin-top: 8px; box-shadow: 0 1px 2px rgba(31, 28, 25, .04); max-width: 840px; }
body.inner .alist-big { background: #fff; border-radius: 20px; padding: 0 28px; box-shadow: 0 1px 2px rgba(31, 28, 25, .04); }
body.inner .alist-big .aitem:last-child { border-bottom: 0; }
body.inner .side-box { background: #fff; box-shadow: 0 1px 2px rgba(31, 28, 25, .04); }
@media (max-width: 640px) {
  body.inner .doc, body.inner .art { padding: 4px 18px 32px; border-radius: 16px; }
  body.inner .alist-big { padding: 0 16px; }
}

/* 利用規約・プライバシーポリシー */
.doc ol.sub { list-style: none; counter-reset: sub; padding-left: 0; margin: 8px 0 0; }
.doc ol.sub > li { counter-increment: sub; padding-left: 2.2em; position: relative; }
.doc ol.sub > li::before { content: "(" counter(sub) ")"; position: absolute; left: 0; }
.doc-dl { margin: 0; border-top: 1px solid var(--line); }
.doc-dl > div { display: grid; grid-template-columns: 8em minmax(0, 1fr); gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.doc-dl dt { font-weight: 700; }
.doc-dl dd { margin: 0; }
.doc-scroll { overflow-x: auto; margin: 12px 0; }
.doc-table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 15px; }
.doc-table th, .doc-table td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.doc-table th { font-weight: 700; background: var(--paper-3); }
.doc .src { margin-top: 40px; color: var(--ink-2); }

/* サイトマップ */
.sm-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; }
.sm-list { list-style: none; padding: 0 !important; margin: 0; }
.sm-list li { margin: 0; border-bottom: 1px solid var(--line); }
.sm-list a { display: block; padding: 12px 0; font-weight: 600; }
.sm-pref { padding: 14px 0; border-bottom: 1px solid var(--line); }
.sm-pref h3 { margin: 0 0 6px; font-size: 17px; }
.sm-cities { list-style: none; padding: 0 !important; margin: 0; display: flex; flex-wrap: wrap; gap: 4px 16px; }
.sm-cities li { margin: 0; }
.sm-cities a { display: inline-block; padding: 4px 0; }
@media (max-width: 640px) {
  .doc-table { min-width: 0; }
  .doc-table thead { display: none; }
  .doc-table tr { display: block; padding: 10px 0; border-bottom: 1px solid var(--line); }
  .doc-table td { display: grid; grid-template-columns: 7em minmax(0, 1fr); gap: 8px; padding: 3px 0; border: 0; }
  .doc-table td::before { content: attr(data-label); font-weight: 700; color: var(--ink-2); }
  .sm-two { grid-template-columns: minmax(0, 1fr); }
  .doc-dl > div { grid-template-columns: minmax(0, 1fr); gap: 2px; }
}