:root {
  --bg: #ffffff;
  --surface: #f7f8f6;
  --line: #e4e7e2;
  --line-strong: #cfd4cc;
  --text: #16201b;
  --text-2: #5c645d;
  --text-3: #8b9189;
  --accent: #1e6f5c;
  --accent-2: #2f9179;
  --up: #1e6f5c;
  --down: #b3452f;
  --flat: #8b9189;
  --row-hover: #eef2ef;
  --maxw: 780px;
  --serif: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  --font: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Yu Gothic UI",
    "Noto Sans JP", "Meiryo", system-ui, sans-serif;

  --c-keizai: #1e6f5c;
  --c-jinko: #35618c;
  --c-chiri: #7a5a2e;
  --c-sports: #8c3a5c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121512;
    --surface: #191d19;
    --line: #2a2f2a;
    --line-strong: #3a413a;
    --text: #e9ece8;
    --text-2: #a7ada6;
    --text-3: #767c74;
    --accent: #4fb89b;
    --accent-2: #3d9a80;
    --up: #4fb89b;
    --down: #e2836c;
    --flat: #7a8079;
    --row-hover: #1e231e;

    --c-keizai: #4fb89b;
    --c-jinko: #6ea3d1;
    --c-chiri: #c99a5c;
    --c-sports: #cf7fa1;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 36px 24px 100px; }

/* header */
.site-head { border-bottom: 3px solid var(--text); padding-bottom: 16px; }
.topbar { display: flex; align-items: baseline; justify-content: space-between; gap: 14px 24px; flex-wrap: wrap; }
.brand { font-family: var(--serif); font-size: 24px; font-weight: 700; letter-spacing: 0.02em; color: var(--text); text-decoration: none; }
.nav { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.nav a { color: var(--text-2); text-decoration: none; font-size: 13.5px; font-weight: 600; }
.nav a:hover { color: var(--accent); }

.section-h { font-size: 16px; font-weight: 700; margin: 0 0 16px; padding-bottom: 8px; border-bottom: 2px solid var(--line-strong); }

/* category tag pill */
.tag { font-size: 11.5px; font-weight: 700; padding: 2px 9px; border-radius: 999px; letter-spacing: 0.02em; white-space: nowrap; }
.tag-keizai { color: var(--c-keizai); background: color-mix(in srgb, var(--c-keizai) 14%, transparent); }
.tag-jinko { color: var(--c-jinko); background: color-mix(in srgb, var(--c-jinko) 14%, transparent); }
.tag-chiri { color: var(--c-chiri); background: color-mix(in srgb, var(--c-chiri) 14%, transparent); }
.tag-sports { color: var(--c-sports); background: color-mix(in srgb, var(--c-sports) 14%, transparent); }

.ac-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.ac-date { font-size: 12px; color: var(--text-3); font-variant-numeric: tabular-nums; }

/* eyecatch banner（1位の顔ぶれを見せるカラーブロック。プレースホルダー画像代わり） */
.eyecatch {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  border-radius: 10px; aspect-ratio: 16 / 9; overflow: hidden; padding: 8px;
}
.eyecatch-rank { font-family: var(--serif); font-size: 22px; font-weight: 700; line-height: 1; }
.eyecatch-rank i { font-style: normal; font-size: 12px; font-weight: 600; margin-left: 1px; }
.eyecatch-name { font-size: 12.5px; font-weight: 700; text-align: center; line-height: 1.3; }
.eyecatch.keizai { background: linear-gradient(135deg, color-mix(in srgb, var(--c-keizai) 22%, var(--surface)), color-mix(in srgb, var(--c-keizai) 8%, var(--surface))); color: var(--c-keizai); }
.eyecatch.jinko { background: linear-gradient(135deg, color-mix(in srgb, var(--c-jinko) 22%, var(--surface)), color-mix(in srgb, var(--c-jinko) 8%, var(--surface))); color: var(--c-jinko); }
.eyecatch.chiri { background: linear-gradient(135deg, color-mix(in srgb, var(--c-chiri) 22%, var(--surface)), color-mix(in srgb, var(--c-chiri) 8%, var(--surface))); color: var(--c-chiri); }
.eyecatch.sports { background: linear-gradient(135deg, color-mix(in srgb, var(--c-sports) 22%, var(--surface)), color-mix(in srgb, var(--c-sports) 8%, var(--surface))); color: var(--c-sports); }
.eyecatch.featured-eye .eyecatch-rank { font-size: 34px; }
.eyecatch.featured-eye .eyecatch-name { font-size: 15px; }
.eyecatch.article-eye { margin: 22px 0; aspect-ratio: 21 / 9; }
.eyecatch.article-eye .eyecatch-rank { font-size: 30px; }
.eyecatch.article-eye .eyecatch-name { font-size: 15px; }

/* featured (トップの特集記事) */
.featured-section { margin: 30px 0 44px; }
.featured { display: block; text-decoration: none; color: inherit; }
.featured:hover .featured-title { color: var(--accent); }
.featured-body { margin-top: 18px; }
.featured-title { font-family: var(--serif); font-size: 28px; line-height: 1.5; margin: 0 0 12px; }
.featured-lead { color: var(--text-2); font-size: 15px; line-height: 1.85; margin: 0 0 14px; }
.featured-top { font-size: 14.5px; }
.tc-rank { font-size: 11.5px; font-weight: 700; color: var(--accent); border: 1px solid var(--accent); border-radius: 4px; padding: 1px 6px; }

/* article list / cards */
.article-list { display: flex; flex-direction: column; gap: 22px; }
.article-list-wide { gap: 26px; }
.article-card { display: grid; grid-template-columns: 120px 1fr; gap: 16px; text-decoration: none; color: inherit; align-items: start; }
.article-card .eyecatch { aspect-ratio: 4 / 3; padding: 4px; }
.article-card .eyecatch-rank { font-size: 15px; }
.article-card .eyecatch-name { font-size: 10.5px; }
.ac-title { font-size: 16.5px; font-weight: 700; margin: 0 0 6px; line-height: 1.5; }
.article-card:hover .ac-title { color: var(--accent); }
.ac-lead { margin: 0; color: var(--text-2); font-size: 13.5px; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

@media (max-width: 480px) {
  .article-card { grid-template-columns: 88px 1fr; }
  .ac-lead { -webkit-line-clamp: 3; }
}

/* category page */
.cat-title { font-family: var(--serif); font-size: 26px; margin: 18px 0 26px; }

/* delta badges */
.delta { font-size: 12px; font-weight: 700; font-variant-numeric: tabular-nums; display: inline-flex; align-items: baseline; gap: 5px; }
.delta.up { color: var(--up); }
.delta.down { color: var(--down); }
.delta.flat { color: var(--flat); }
.delta.new { color: var(--accent); }
.delta-pct { font-weight: 500; opacity: .85; }

/* article detail */
.back { display: inline-block; margin-bottom: 18px; color: var(--text-2); text-decoration: none; font-size: 13.5px; }
.back:hover { color: var(--accent); }
.article-h1 { font-family: var(--serif); font-size: 30px; line-height: 1.5; margin: 4px 0 16px; }
.article-lead { font-size: 16px; color: var(--text-2); line-height: 1.9; margin: 0 0 4px; }
.period-label { font-size: 13px; color: var(--text-3); margin-bottom: 8px; text-align: left; }

/* 年切り替えタブ */
.period-tabs { display: flex; gap: 6px; margin: 40px 0 0; border-bottom: 2px solid var(--line-strong); }
.period-tab {
  appearance: none; background: none; border: none; cursor: pointer;
  font-family: var(--font); font-size: 14px; font-weight: 700; color: var(--text-3);
  padding: 8px 4px 10px; margin-bottom: -2px; border-bottom: 2px solid transparent;
}
.period-tab:hover { color: var(--text-2); }
.period-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.period-block .article-section-h { margin-top: 20px; border-bottom: none; padding-bottom: 0; }

.article-section-h { margin-top: 40px; }

/* 11位以降の折りたたみリスト */
.extended-ranking { margin-top: 40px; }
.extended-details { margin-top: 4px; }
.extended-details summary {
  cursor: pointer; list-style: none; font-size: 13.5px; font-weight: 700; color: var(--accent);
  padding: 10px 0; border-bottom: 1px solid var(--line);
}
.extended-details summary::-webkit-details-marker { display: none; }
.extended-details summary::before { content: '▸ '; }
.extended-details[open] summary::before { content: '▾ '; }
.extended-details summary:hover { color: var(--accent-2); }
.extended-table { font-size: 13.5px; }
.extended-table .col-rank { color: var(--text-3); font-weight: 600; }
.extended-table td { padding: 7px 10px; }

/* 表彰台（TOP3ハイライト） */
.podium { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; align-items: end; margin: 22px 0 30px; }
.podium-item {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px;
  padding: 20px 10px 18px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line);
}
.podium-item.pd-rank1 { order: 2; padding-top: 26px; border-color: var(--line-strong); background: color-mix(in srgb, var(--accent) 9%, var(--surface)); }
.podium-item.pd-rank2 { order: 1; }
.podium-item.pd-rank3 { order: 3; }
.podium-rank { font-family: var(--serif); font-size: 30px; font-weight: 700; color: var(--accent); line-height: 1; }
.podium-item.pd-rank1 .podium-rank { font-size: 38px; }
.podium-rank-suffix { font-size: 14px; font-weight: 600; margin-left: 1px; }
.podium-name { font-size: 14.5px; font-weight: 700; line-height: 1.4; }
.podium-value { font-size: 15px; font-variant-numeric: tabular-nums; color: var(--text-2); }
.podium-value .unit { font-size: 12px; color: var(--text-3); margin-left: 2px; }

@media (max-width: 480px) {
  .podium { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .podium-item { padding: 14px 6px 14px; }
  .podium-rank { font-size: 24px; }
  .podium-item.pd-rank1 .podium-rank { font-size: 30px; }
  .podium-name { font-size: 12.5px; }
  .podium-value { font-size: 12.5px; }
}

.rank-figure { margin: 26px 0; }
.period-label { font-weight: 600; color: var(--text-2); }
.rank-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.rank-table td { padding: 10px 10px; border-bottom: 1px solid var(--line); }
.rank-table tr:first-child td { border-top: 1px solid var(--line); }
.rank-table .col-rank { width: 36px; font-weight: 700; color: var(--text-3); }
.rank-table .col-value { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.rank-table .col-delta { text-align: right; white-space: nowrap; width: 90px; }
.rank-table .unit { color: var(--text-3); font-size: 12px; margin-left: 3px; }

.article-body { margin-top: 22px; font-size: 15px; color: var(--text); line-height: 1.9; }
.source { margin-top: 24px; font-size: 13px; color: var(--text-3); border-top: 1px solid var(--line); padding-top: 14px; }
.source a { color: var(--accent-2); }

.related { margin-top: 56px; padding-top: 30px; border-top: 1px solid var(--line); }

.empty { color: var(--text-3); }

/* footer */
.site-foot { margin-top: 64px; border-top: 1px solid var(--line); padding-top: 20px; color: var(--text-3); font-size: 12.5px; }