:root {
  --bg: #fafaf7;
  --surface: #ffffff;
  --text: #1d1d1b;
  --muted: #6b6b66;
  --border: #e4e3dc;
  --accent: #2f6f4f;
  --accent-2: #b8862b;
  --pending: #8a5a00;
  --asset-0: #2a78d6; --asset-1: #eda100; --asset-2: #4a3aa7;
  --asset-3: #eb6834; --asset-4: #1baf7a; --asset-5: #8a8984;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151614;
    --surface: #1f201d;
    --text: #ecebe6;
    --muted: #a3a29b;
    --border: #34352f;
    --accent: #6cc196;
    --accent-2: #e0b25a;
    --pending: #f0b84a;
    --asset-0: #3987e5; --asset-1: #c98500; --asset-2: #9085e9;
    --asset-3: #d95926; --asset-4: #199e70; --asset-5: #8a8984;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", sans-serif;
  line-height: 1.7;
}
main, .site-header, .site-footer { max-width: 960px; margin: 0 auto; padding: 0 16px; }
.site-header { padding-top: 20px; padding-bottom: 8px; }
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; }
a { color: var(--accent); }
h1 { font-size: 1.5rem; line-height: 1.4; }
h2 { font-size: 1.2rem; margin-top: 2.5rem; border-bottom: 2px solid var(--border); padding-bottom: 4px; }
.lead { font-size: 1.05rem; }
.muted { color: var(--muted); }
.small { font-size: 0.85em; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 16px 0; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
.card .label { color: var(--muted); font-size: 0.85rem; }
.card .big { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.card .small-big { font-size: 1.05rem; }
.card .sub { color: var(--muted); font-size: 0.85rem; }
.toc { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; white-space: nowrap; }
tr:last-child td { border-bottom: none; }
td { min-width: 4em; }
.nowrap { white-space: nowrap; }
td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.bar-col { width: 30%; }
.bar { display: inline-block; height: 8px; border-radius: 4px; background: var(--accent); }
.pending { color: var(--pending); font-weight: 600; }
.tag { font-size: 0.8em; border: 1px solid var(--border); border-radius: 999px; padding: 0 8px; }
ul.plain { list-style: none; padding: 0; }
.tag { white-space: nowrap; }
ul.plain li { padding: 6px 0; border-bottom: 1px solid var(--border); }
.chart { width: 100%; height: auto; margin-top: 8px; }
.chart text { fill: var(--muted); font-size: 12px; }
.chart .axis { stroke: var(--border); }
.chart polyline { fill: none; stroke-width: 2.5; }
.chart .value { stroke: var(--accent); }
.chart .deposit { stroke: var(--accent-2); stroke-dasharray: 5 4; }
.legend { color: var(--muted); font-size: 0.85rem; }
.key { display: inline-block; width: 18px; height: 3px; vertical-align: middle; margin: 0 4px 0 10px; }
.key.value { background: var(--accent); }
.key.deposit { background: var(--accent-2); }
article { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 8px 20px 16px; margin-top: 16px; }
.site-footer { color: var(--muted); font-size: 0.8rem; margin-top: 48px; padding-bottom: 32px; border-top: 1px solid var(--border); }

/* 資産配分・投稿用画像 */
.allocation { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 32px; margin: 12px 0 16px; }
.donut { flex: none; max-width: 100%; height: auto; }
.donut circle { cursor: default; }
.legend-list { margin: 0; min-width: 220px; }
.legend-list li { display: flex; align-items: center; gap: 8px; }
.legend-list strong { font-variant-numeric: tabular-nums; }
.swatch { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 6px; vertical-align: middle; flex: none; }
tfoot td { font-weight: 600; }
.chart .hit { fill: transparent; }
.chart .hit:hover { fill: var(--accent); fill-opacity: .25; }
.share-card { margin: 16px 0 28px; }
.share-card figcaption { margin-top: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; }
.share-card img { width: 100%; height: auto; border: 1px solid var(--border); border-radius: 10px; display: block; }
.button { display: inline-block; padding: 8px 16px; border-radius: 8px; background: var(--accent); color: var(--bg); text-decoration: none; font-weight: 600; }

/* ナビ・記事一覧・タグ・記事本文 */
.site-header { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 16px; }
.site-nav { display: flex; gap: 14px; font-size: 0.9rem; }
.breadcrumb { margin-top: 12px; }
.article-list { list-style: none; padding: 0; margin: 0; }
.article-list li { padding: 14px 0; border-bottom: 1px solid var(--border); }
.article-list .title { display: block; font-weight: 700; font-size: 1.05rem; margin: 2px 0; }
.article-list .desc { margin: 4px 0; color: var(--muted); font-size: 0.9rem; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0; }
.tags .tag { text-decoration: none; color: var(--text); }
.tags .tag:hover { border-color: var(--accent); }
.tag-cloud { margin: 12px 0 8px; }
article .table-wrap { margin: 12px 0; }
article h2 { margin-top: 2rem; }
blockquote { margin: 12px 0; padding: 4px 14px; border-left: 4px solid var(--border); color: var(--muted); }