:root {
  --fg: #1f2933;
  --muted: #5f6b76;
  --bg: #ffffff;
  --panel: #f4f7f5;
  --line: #d9e0dc;
  --accent: #047a00; /* 旧サイトの基調色 */
  --todo-bg: #fff3c4;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
  line-height: 1.7;
}

.inner { max-width: 960px; margin: 0 auto; padding: 0 16px; }

.site-header { background: #fff; border-bottom: 4px solid var(--accent); }
.site-header .inner { display: flex; align-items: center; gap: 12px; padding-top: 8px; padding-bottom: 8px; }
.logo img { display: block; max-width: 100%; height: auto; }

/* 画面の左右に固定表示するバナー。本文（960px）の外に置けるほど画面が広いときだけ出す */
.side-banner { display: none; }
@media (min-width: 1248px) {
  .side-banner { display: block; position: fixed; top: 140px; }
  .side-banner img { display: block; }
  .side-left { right: calc(50% + 480px + 12px); }
  .side-right { left: calc(50% + 480px + 12px); }
}

.draft-banner { background: #b42318; color: #fff; text-align: center; padding: 8px 16px; font-weight: 700; }
.todo { background: var(--todo-bg); padding: 0 4px; }

main { padding-top: 24px; padding-bottom: 48px; }
h1 { font-size: 1.6rem; margin: 0 0 16px; }
h2 { font-size: 1.2rem; margin: 24px 0 8px; }

.notice { background: var(--panel); border-radius: 8px; padding: 12px 16px; }

.apology { margin-top: 16px; border: 1px solid #f0c2c7; border-top: 6px solid #e04f5f; border-radius: 8px; background: #fdf6f7; padding: 4px 16px 8px; margin-bottom: 32px; }
.apology h2 { margin-top: 12px; color: #b42318; }
.apology p { margin: 8px 0; }
.apology-cta { text-align: center; margin: 16px 0 !important; }
.apology-cta .btn { padding: 12px 24px; font-size: 1.05rem; font-weight: 700; }
.box { border-top: 1px solid var(--line); margin-top: 32px; }

.product { border: 1px solid var(--line); border-radius: 8px; margin-top: 24px; overflow: hidden; }
/* 会員様特典など、目立たせたい商品グループ */
.product-featured { border: 3px solid #e04f5f; }
.product-featured > h2 { background: #fdf6f7; }
.product-headline { margin: 0; padding: 10px 16px; background: #e04f5f; color: #fff; font-size: 1.3rem; font-weight: 700; text-align: center; }
.product-featured .plan-price { color: #b42318; font-size: 1.3rem; }
.regular-price { display: block; color: var(--muted); font-size: 0.9rem; font-weight: 400; }

.product-banner { display: block; max-width: calc(100% - 32px); height: auto; margin: 12px 16px 0; }
.product > h2 { margin: 0; padding: 12px 16px; background: var(--panel); }
.product > .lead { margin: 0; padding: 8px 16px 0; color: var(--muted); }
.plans { width: 100%; border-collapse: collapse; }
.plans td { padding: 12px 16px; border-top: 1px solid var(--line); vertical-align: middle; }
.plan-label { font-weight: 700; }
.plan-label small { display: block; font-weight: 400; color: var(--muted); }
.plan-price { white-space: nowrap; font-size: 1.1rem; font-weight: 700; }
.plan-buy { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.plan-buy form { margin: 0; }

.btn {
  display: inline-block;
  min-width: 10em;
  padding: 8px 12px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-size: 0.95rem;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}
.btn-sub { background: #fff; color: var(--accent); }
.btn-amazonpay img { display: block; width: 160px; height: auto; }

.spec { width: 100%; border-collapse: collapse; }
.spec th, .spec td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.spec th { width: 28%; background: var(--panel); font-weight: 600; }

dt { font-weight: 600; margin-top: 8px; }
dd { margin-left: 0; }

.site-footer { background: var(--panel); border-top: 1px solid var(--line); font-size: 0.9rem; }
.site-footer .inner { padding-top: 16px; padding-bottom: 24px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.site-footer a { color: var(--accent); }
.copyright { color: var(--muted); }

@media (max-width: 640px) {
  .plans tr { display: block; border-top: 1px solid var(--line); padding: 8px 0; }
  .plans td { display: block; border-top: none; padding: 4px 16px; }
  .plan-buy { justify-content: flex-start; }
  .spec th, .spec td { display: block; width: 100%; }
  .spec th { border-bottom: none; }
}