:root { --accent: #0a6e8a; --bg: #f7f7f5; --card: #fff; --text: #222; }
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
       background: var(--bg); color: var(--text); line-height: 1.6; }
.site-header { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: center;
               padding: .7rem 1rem; background: var(--accent); }
.site-header a { color: #fff; text-decoration: none; }
.logo { font-weight: 700; font-size: 1.15rem; margin-right: auto; }
.lang-toggle { border: 1px solid #ffffff88; border-radius: 999px; padding: .1rem .7rem; }
.site-header nav { display: flex; gap: .8rem; flex-wrap: wrap; font-size: .9rem; width: 100%; }
main { max-width: 720px; margin: 0 auto; padding: 1rem; }
.card { background: var(--card); border-radius: 10px; padding: 1rem; margin: .8rem 0;
        box-shadow: 0 1px 3px rgb(0 0 0 / .08); }
.card h3 { margin: .3rem 0; font-size: 1.05rem; }
.tags { display: flex; gap: .4rem; flex-wrap: wrap; }
.tag { font-size: .75rem; background: #e8eef0; border-radius: 999px; padding: .05rem .6rem; }
.cat-event { background: #e0f0e3; } .cat-shop { background: #fdeedd; } .cat-deal { background: #fde3e3; }
.tier-S { background: #d4af37; color: #fff; font-weight: 700; }
.tier-A { background: #b9c6cc; }
.meta, .source { font-size: .85rem; color: #555; }
.btn { display: inline-block; background: var(--accent); color: #fff; border: 0;
       border-radius: 8px; padding: .5rem 1rem; text-decoration: none; font-size: 1rem; cursor: pointer; }
.featured { border: 2px solid #d4af37; border-radius: 12px; padding: .5rem 1rem; background: #fffbee; }
.coupon-page .coupon-text { font-size: 1.4rem; font-weight: 700; }
.coupon-page .redeem { width: 100%; padding: .9rem; }
.note { color: #555; font-size: .9rem; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { border: 1px solid #ccc; padding: .4rem; text-align: left; }
.site-footer { text-align: center; font-size: .8rem; color: #666; padding: 2rem 1rem; }
.digest-body { background: var(--card); border-radius: 10px; padding: 1rem; }