:root {
  --bg: #ffffff; --fg: #1a1d24; --muted: #5d6573; --line: #e3e6ec; --accent: #0f7b6c; --accent-fg: #ffffff;
  --panel: #f5f7f9; --warn-bg: #fff6dc; --warn-fg: #6b4e00; --bad: #b42318;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111418; --fg: #e8eaee; --muted: #a2a9b5; --line: #2a2f37; --accent: #3cc3ad; --accent-fg: #0b1512;
          --panel: #1a1e24; --warn-bg: #3a2f10; --warn-fg: #f3d987; --bad: #ff8a80; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.75 system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif; }
a { color: var(--accent); }
main { max-width: 960px; margin: 0 auto; padding: 16px; }
header.site { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--line); }
header.site nav { display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: center; }
header.site nav a { text-decoration: none; color: var(--fg); }
.logo { font-weight: 800; font-size: 1.2rem; text-decoration: none; color: var(--accent) !important; }
.btn { display: inline-block; padding: 6px 14px; border-radius: 8px; background: var(--accent); color: var(--accent-fg) !important; border: 0; font: inherit; cursor: pointer; text-decoration: none; }
button.link { background: none; border: 0; color: var(--accent); cursor: pointer; font: inherit; padding: 0; text-decoration: underline; }
.draft-banner { background: var(--warn-bg); color: var(--warn-fg); padding: 6px 16px; font-size: .9rem; text-align: center; }
.hero h1 { font-size: 1.6rem; line-height: 1.4; }
ul.points li { margin: 4px 0; }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { border-bottom: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
thead th { background: var(--panel); font-size: .9rem; }
.sub, .muted, .note { color: var(--muted); font-size: .88rem; }
.tag { display: inline-block; font-size: .72rem; padding: 0 6px; border-radius: 4px; background: var(--panel); color: var(--muted); border: 1px solid var(--line); }
.calc { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: flex-end; background: var(--panel); padding: 12px; border-radius: 10px; }
.calc label { display: flex; flex-direction: column; font-size: .9rem; }
input, select { font: inherit; padding: 4px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--fg); max-width: 100%; }
.calc-out { font-size: 1.1rem; }
.summary { display: flex; flex-wrap: wrap; gap: 12px; }
.summary div { flex: 1 1 200px; background: var(--panel); border-radius: 10px; padding: 12px; }
.summary span { display: block; color: var(--muted); font-size: .85rem; }
.summary b { font-size: 1.4rem; }
dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; }
dl.facts dt { color: var(--muted); }
dl.facts dd { margin: 0; }
dl.glossary dt { font-weight: 700; margin-top: 12px; }
dl.glossary dd { margin: 0; }
.msg { min-height: 1.5em; } .msg.bad { color: var(--bad); }
footer.site { border-top: 1px solid var(--line); margin-top: 40px; padding: 16px; color: var(--muted); font-size: .82rem; max-width: 960px; margin-left: auto; margin-right: auto; }
@media (max-width: 640px) {
  table.compare thead { display: none; }
  table.compare tr { display: block; border-bottom: 1px solid var(--line); padding: 8px 0; }
  table.compare th, table.compare td { display: block; border: 0; padding: 2px 4px; }
  table.compare td::before { content: attr(data-label) "：" ; color: var(--muted); font-size: .85rem; }
  dl.facts { grid-template-columns: 1fr; } dl.facts dd { margin-bottom: 6px; }
}
.pr-note { padding: 8px 16px; font-size: 1rem; color: var(--fg); text-align: center; border-bottom: 1px solid var(--line); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 12px; }
.chip { font: inherit; font-size: .9rem; padding: 4px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); cursor: pointer; }
.chip.on { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.lv { display: inline-block; font-size: .8rem; padding: 1px 8px; border-radius: 6px; white-space: nowrap; border: 1px solid var(--line); }
.lv-cashback { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.lv-auto_discount { border-color: var(--accent); color: var(--accent); }
.lv-listing { color: var(--muted); }