:root{--ink:#17231f;--deep:#14382e;--green:#1f6651;--mint:#dff1e8;--cream:#f6f2e8;--paper:#fffdf8;--gold:#f2b84b;--line:#d9ded9;--muted:#66716c;--shadow:0 18px 50px rgba(20,56,46,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,var(--cream),#fff 36rem);color:var(--ink);font-family:"Hiragino Sans","Yu Gothic UI","Noto Sans JP",system-ui,sans-serif;line-height:1.85;font-size:16px}.wrap{width:min(1040px,calc(100% - 32px));margin:auto}header{border-bottom:1px solid rgba(20,56,46,.12);padding:18px 0}.nav{display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{display:flex;align-items:center;gap:10px;color:var(--deep);text-decoration:none;font-size:1.2rem;font-weight:900}.logo{width:36px;height:36px;border-radius:11px;background:var(--deep);color:var(--gold);display:grid;place-items:center}.home-link{color:var(--green);font-size:.88rem;font-weight:700;text-decoration:none}.article-layout{display:grid;grid-template-columns:minmax(0,720px) 250px;gap:50px;align-items:start;padding:52px 0 80px}.breadcrumb{font-size:.82rem;color:var(--muted);margin-bottom:20px}.breadcrumb a{color:var(--green)}.kicker{color:var(--green);font-size:.84rem;font-weight:800;letter-spacing:.08em}.article h1{font-size:clamp(2rem,5vw,3.35rem);line-height:1.25;color:var(--deep);letter-spacing:-.035em;margin:.25em 0 .4em}.lead{font-size:1.05rem;color:#4b5954;margin-bottom:32px}.article h2{font-size:1.55rem;line-height:1.45;color:var(--deep);margin:2.2em 0 .65em;padding-top:.25em}.article h3{font-size:1.12rem;color:var(--deep);margin:1.8em 0 .45em}.article p{margin:.7em 0}.article ul,.article ol{padding-left:1.45em}.article li{margin:.35em 0}.example{background:var(--mint);border-left:5px solid var(--green);border-radius:0 16px 16px 0;padding:18px 20px;margin:24px 0}.example strong{color:var(--deep)}.formula-box{background:var(--deep);color:#fff;border-radius:18px;padding:20px 22px;margin:24px 0;font-weight:800}.note{background:#fff8e6;border:1px solid #f2d79a;border-radius:14px;padding:16px 18px;margin:22px 0}.cta{display:block;background:var(--gold);color:var(--deep);text-decoration:none;font-weight:900;text-align:center;border-radius:14px;padding:15px 20px;margin:32px 0}.cta:hover{filter:brightness(.97)}.toc{position:sticky;top:22px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow)}.toc b{color:var(--deep)}.toc a{display:block;color:#50605a;text-decoration:none;font-size:.86rem;border-top:1px solid #edf0ee;padding:9px 0}.meta-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;margin-bottom:22px}.meta-card h2{margin:0 0 10px;font-size:1.35rem}.meta-card p{color:#4e5c57}.policy-list{display:grid;gap:12px}.policy-list a{display:block;color:var(--green)}footer{border-top:1px solid var(--line);padding:28px 0 44px;color:var(--muted);font-size:.83rem}.footer-links{display:flex;flex-wrap:wrap;gap:12px 18px;margin-top:10px}.footer-links a{color:var(--green)}
@media(max-width:800px){.article-layout{grid-template-columns:1fr;padding-top:32px}.toc{position:static}.article h1{font-size:2.2rem}}@media(max-width:520px){.wrap{width:min(100% - 22px,1040px)}.home-link{font-size:.78rem}.article-layout{gap:24px}.article h1{font-size:1.9rem}.toc{display:block;padding:16px}.toc a{min-height:44px}}

.table-scroll{overflow-x:auto;margin:24px 0}.table-scroll table{width:100%;border-collapse:collapse;background:#fff;font-size:1rem}.table-scroll caption{text-align:left;font-weight:700;margin-bottom:10px}.table-scroll th,.table-scroll td{padding:12px;border:1px solid var(--line);text-align:left;vertical-align:top}.table-scroll thead{background:var(--mint)}.table-scroll th{font-weight:700}.updated{font-size:.875rem;color:var(--muted)}.report-template{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;background:var(--mint);padding:20px;border-radius:14px}.article a:not(.cta){color:var(--green)}

.affiliate-banner{text-align:center;margin:24px 0}.affiliate-banner img{max-width:100%;height:auto}.affiliate-banner a:focus-visible{outline:3px solid var(--green);outline-offset:5px}

.example-entry{background:#eef6f0;border:1px solid #c8e1d6;border-radius:16px;padding:20px;margin:28px 0}.example-entry p{margin:10px 0}.example-entry .cta{margin:8px 0;white-space:normal}.example-entry .entry-hint{font-size:.82rem;color:#53605b}

.article{min-width:0;overflow-wrap:anywhere}.formula-box{overflow-wrap:anywhere}.nav .brand{flex-shrink:0}.home-link{font-size:.875rem}.toc a{font-size:.875rem}a:focus-visible,summary:focus-visible{outline:3px solid var(--green);outline-offset:4px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.related-reading{border-top:1px solid var(--line);margin-top:36px;padding-top:12px}.related-reading h2{font-size:1.2rem;margin:12px 0}.related-reading a{display:inline-block;padding:8px 0}

.skip-link{position:absolute;top:-100px;left:12px;background:#fff;padding:12px;z-index:10}.skip-link:focus{top:12px}.footer-links a{display:inline-block;padding:6px 0}.toc a{line-height:1.6}.table-scroll:focus-visible{outline:3px solid var(--green)}

/* Mobile readers see the article's title and answer before choosing a section. */
.mobile-toc{display:none}
@media(max-width:800px){
  .article-toc{display:none}
  .mobile-toc{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;margin:20px 0 28px;overflow:hidden}
  .mobile-toc summary{min-height:48px;padding:12px 16px;font-size:1rem;font-weight:700;color:var(--deep);cursor:pointer}
  .mobile-toc nav{padding:0 16px 10px}
  .mobile-toc a{display:block;min-height:44px;border-top:1px solid var(--line);padding:10px 0;line-height:1.6;font-size:1rem}
}

/* Keep monetary values intact in the selling-fee article. */
.fee-table td{white-space:nowrap;text-align:right;font-variant-numeric:tabular-nums;overflow-wrap:normal}
.fee-table thead th:not(:first-child){text-align:right}
.goal-price-table{table-layout:fixed}
.goal-price-table th,.goal-price-table td{white-space:nowrap;overflow-wrap:normal}
.goal-price-table tbody th{text-align:right;font-variant-numeric:tabular-nums}
.table-caption-note{display:block;font-size:.875rem;font-weight:400;color:var(--muted)}
.table-scroll-hint{display:none}
@media(max-width:520px){
  .fee-table th,.fee-table td{padding:10px 8px}
  .goal-price-table{min-width:300px}
  .goal-price-table th:first-child{width:28%}
  .goal-price-table th:nth-child(2){width:34%}
  .discount-compare-table{min-width:440px}
  .table-scroll-hint{display:block;font-size:.875rem;color:var(--muted)}
  .table-scroll-hint + .table-scroll{margin-top:8px}
}