:root {
  color-scheme: light;
  --bg: #fbfcfa;
  --surface: #fff;
  --soft: #eef5ef;
  --ink: #14231c;
  --muted: #52645a;
  --green: #087a48;
  --line: #dce6df;
  --max: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.8 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
}
a { color: var(--green); }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--green); outline-offset: 4px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.site-header { border-bottom: 1px solid var(--line); background: var(--surface); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 74px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); font-weight: 800; font-size: 1.1rem; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: #0fa968; color: #fff; }
.top-nav { display: flex; gap: 20px; flex-wrap: wrap; font-size: .88rem; font-weight: 700; }
.top-nav a { text-decoration: none; }
.breadcrumbs { margin: 24px 0 8px; font-size: .84rem; color: var(--muted); }
.breadcrumbs a { color: inherit; }
.breadcrumbs span { margin: 0 8px; }
.hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(230px, .75fr); gap: 46px; align-items: center; padding: 34px 0 60px; }
.eyebrow { color: var(--green); font-size: .78rem; font-weight: 800; letter-spacing: .1em; }
h1, h2, h3 { line-height: 1.38; letter-spacing: -.025em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); margin: 14px 0 18px; }
h2 { font-size: clamp(1.45rem, 3.5vw, 1.95rem); margin: 0 0 18px; }
h3 { font-size: 1.1rem; margin: 0 0 9px; }
p { margin: 0 0 16px; }
.lead { font-size: 1.1rem; color: var(--muted); max-width: 39em; }
.note { color: var(--muted); font-size: .88rem; }
.fact-card { background: var(--soft); border: 1px solid var(--line); border-radius: 22px; padding: 26px; }
.fact-card strong { display: block; font-size: 1.25rem; line-height: 1.45; margin: 8px 0 12px; }
.fact-card p:last-child { margin-bottom: 0; }
.screen { margin: 0; max-width: 380px; justify-self: center; text-align: center; }
.screen img { display: block; width: 100%; height: auto; border-radius: 24px; box-shadow: 0 20px 40px -28px #10271b8a; }
figcaption { color: var(--muted); font-size: .8rem; line-height: 1.6; margin-top: 10px; }
section { border-top: 1px solid var(--line); padding: 46px 0; }
.intro { font-size: 1.04rem; max-width: 50em; }
.formula { background: #153d2b; color: #fff; border-radius: 18px; padding: 22px 26px; margin: 20px 0 14px; font-size: clamp(1rem, 2.5vw, 1.25rem); font-weight: 800; overflow-wrap: anywhere; }
.formula small { display: block; color: #cfebd9; font-size: .77rem; font-weight: 500; margin-top: 7px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid.two { grid-template-columns: repeat(2, 1fr); }
.panel { border: 1px solid var(--line); background: var(--surface); border-radius: 18px; padding: 22px; }
.panel p:last-child { margin-bottom: 0; }
.panel .num { display: block; font-size: 1.5rem; line-height: 1.3; color: var(--green); font-weight: 800; margin-bottom: 9px; }
.step-label { color: var(--green); font-size: .8rem; font-weight: 800; letter-spacing: .06em; }
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); margin: 20px 0; }
table { border-collapse: collapse; width: 100%; min-width: 600px; }
th, td { border-bottom: 1px solid var(--line); padding: 12px 16px; text-align: left; vertical-align: top; }
thead th { background: var(--soft); font-size: .88rem; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
tbody th { font-weight: 700; width: 32%; }
.price-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 20px 0; }
.price { border: 1px solid var(--line); border-radius: 18px; padding: 24px; background: var(--surface); }
.price strong { display: block; font-size: 2rem; line-height: 1.25; margin: 10px 0; }
.price small { color: var(--muted); }
.callout { border-left: 4px solid #0fa968; border-radius: 0 14px 14px 0; background: var(--soft); padding: 17px 20px; margin: 20px 0; }
.callout p:last-child { margin-bottom: 0; }
ul, ol { padding-left: 1.4em; }
li { margin: 8px 0; }
.cta { display: inline-flex; justify-content: center; text-align: center; align-items: center; min-height: 48px; padding: 12px 25px; border-radius: 999px; background: #0b955b; color: #fff; font-weight: 800; text-decoration: none; }
.cta:hover { background: #087a48; }
.meta { color: var(--muted); font-size: .83rem; margin: 22px 0 0; }
.related { background: var(--soft); padding: 36px 0; }
.related-links { display: flex; flex-wrap: wrap; gap: 14px 26px; }
.site-footer { border-top: 1px solid var(--line); padding: 25px 0 40px; color: var(--muted); font-size: .85rem; }
@media (max-width: 760px) {
  .site-header .wrap { align-items: flex-start; flex-direction: column; justify-content: center; padding-top: 14px; padding-bottom: 14px; gap: 8px; }
  .top-nav { gap: 8px 18px; }
  .hero, .grid, .grid.two, .price-grid { grid-template-columns: 1fr; }
  .hero { gap: 20px; padding-bottom: 36px; }
  .screen { max-width: 300px; }
  section { padding: 34px 0; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }