:root {
  --ink: #070707;
  --paper: #fffefa;
  --blue: #2e3bff;
  --lime: #d8fb1f;
  --cream: #f7ecd6;
  --sky: #dff0ff;
  --line: #101010;
  --muted: #5d5d5d;
  --max: 1220px;
}

* { box-sizing: border-box; }
html { min-width: 320px; scroll-behavior: smooth; background: var(--paper); }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
main { overflow: hidden; }

.section { position: relative; padding: clamp(4.5rem, 8vw, 7.5rem) 1.25rem; }
.section__inner { width: min(100%, var(--max)); margin: 0 auto; }
.section-grid { display: grid; grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.section-grid--text-right { grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr); }
.stack { display: grid; gap: clamp(2rem, 4vw, 3.2rem); }

.eyebrow { margin: 0 0 0.8rem; color: var(--blue); font-size: 1.05rem; font-weight: 900; letter-spacing: 0; }
.eyebrow--tilt { position: relative; display: inline-block; color: var(--ink); transform: rotate(-5deg); }
.eyebrow--tilt img { position: absolute; left: -0.4rem; bottom: -0.65rem; z-index: -1; width: 9.6rem; height: 1.25rem; object-fit: fill; }

h1, h2 { margin: 0; font-weight: 950; line-height: 1.14; letter-spacing: 0; }
h1 { max-width: 48rem; font-size: clamp(3.45rem, 8vw, 5.55rem); }
h1 span { position: relative; display: inline-block; }
h1 span::after { content: ""; position: absolute; left: -0.06em; right: -0.08em; bottom: -0.08em; z-index: -1; height: 0.18em; background: var(--lime); transform: rotate(-1.5deg); }
h2 { font-size: clamp(2.35rem, 5vw, 4.25rem); }
.section-copy p:not(.eyebrow), .hero__lead { margin: 1.25rem 0 0; color: #191919; font-size: clamp(1rem, 1.6vw, 1.18rem); font-weight: 650; line-height: 1.92; }
.section-copy--center { max-width: 55rem; margin: 0 auto; text-align: center; }

.actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: clamp(1.8rem, 3vw, 2.6rem); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 1rem; min-height: 4rem; padding: 0.9rem 1.7rem; border: 2px solid var(--line); border-radius: 999px; font-weight: 900; text-decoration: none; white-space: nowrap; }
.button--primary { min-width: min(100%, 22rem); color: #fff; border-color: var(--blue); background: var(--blue); box-shadow: 0 1rem 2.2rem rgba(46, 59, 255, 0.22); }
.button--secondary { min-width: min(100%, 12rem); background: #fff; }

.hero { min-height: 100svh; padding-top: clamp(2.4rem, 5vw, 5rem); padding-bottom: clamp(2rem, 5vw, 4rem); background: radial-gradient(circle at 5% 90%, rgba(247,236,214,.72) 0 18rem, transparent 18.1rem); }
.hero__inner { display: grid; grid-template-columns: minmax(0, 1.03fr) minmax(25rem, 0.97fr); gap: clamp(1.25rem, 3vw, 3rem); align-items: center; }
.hero__copy { position: relative; z-index: 3; }
.hero__lead { max-width: 42rem; }
.hero__visual { position: relative; min-height: clamp(33rem, 52vw, 45rem); overflow: hidden; }
.hero__visual > img, .bubble { position: absolute; }
.hero__blob--cream { z-index: 0; top: 4%; left: 0; width: 74%; opacity: 0.9; transform: rotate(-5deg); }
.hero__blob--lime { z-index: 1; right: 8%; bottom: 10%; width: 38%; transform: rotate(7deg); }
.hero__rays--top { z-index: 4; top: 3%; right: 10%; width: 10rem; transform: rotate(12deg); }
.hero__portrait { z-index: 2; right: 12%; bottom: -2%; width: 58%; }
.hero__mascot { z-index: 3; right: 8%; bottom: 0; width: 23%; }
.bubble { z-index: 5; width: clamp(12rem, 17vw, 16rem); display: grid; place-items: center; }
.bubble img { grid-area: 1 / 1; width: 100%; }
.bubble p { grid-area: 1 / 1; margin: 0; padding: 1rem 1.4rem; font-weight: 900; line-height: 1.65; text-align: center; }
.bubble--top { top: 10%; left: 6%; transform: rotate(-2deg); }
.bubble--right { right: 10%; top: 47%; transform: rotate(3deg) scaleX(-1); }
.bubble--right p { transform: scaleX(-1); }

.story { background: #fff; }
.proof { background: linear-gradient(180deg, #fffefa 0%, #f8fbff 100%); }
.method { background: #fff; }
.contents { background: linear-gradient(180deg, #fffefa 0%, #fff5df 100%); }
.final-cta { background: radial-gradient(circle at 0% 100%, rgba(216,251,31,.52) 0 14rem, transparent 14.2rem), #fff; }

.asset-panel { margin: 0; }
.asset-panel img { width: 100%; border-radius: 0.5rem; filter: drop-shadow(0 1.25rem 1.8rem rgba(8, 8, 8, 0.1)); }
.asset-panel--wide img { border: 1px solid rgba(16,16,16,.08); }
.asset-panel--full { width: min(100%, 70rem); margin: 0 auto; }

.mini-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.65rem; margin: 1.45rem 0 0; padding: 0; list-style: none; }
.mini-list li { padding: 0.8rem 0.9rem; border: 2px solid var(--line); border-radius: 0.5rem; background: #fff; font-weight: 900; box-shadow: 0.25rem 0.25rem 0 var(--lime); }

.final-cta__inner { display: grid; grid-template-columns: minmax(0, 0.98fr) minmax(18rem, 0.72fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.final-cta__visual { margin: 0; justify-self: center; width: min(100%, 31rem); }
.final-cta__visual img { width: 100%; border-radius: 0.5rem; }

.footer { padding: 1.6rem 1.25rem; border-top: 2px solid var(--line); background: var(--ink); color: #fff; }
.footer__inner { width: min(100%, var(--max)); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer nav { display: flex; gap: 1rem; }
.footer a { text-decoration: none; font-weight: 800; }
.footer small { color: rgba(255,255,255,.72); }

@media (max-width: 920px) {
  .section { padding: clamp(3.5rem, 9vw, 5rem) 1rem; }
  .hero { min-height: auto; }
  .hero__inner, .section-grid, .section-grid--text-right, .final-cta__inner { grid-template-columns: 1fr; }
  .section-grid--text-right .asset-panel { order: 2; }
  .section-grid--text-right .section-copy { order: 1; }
  .hero__visual { min-height: 33rem; width: min(100%, 38rem); margin: 0 auto; }
  h1 { font-size: clamp(3rem, 12vw, 4.5rem); }
  h2 { font-size: clamp(2.2rem, 9vw, 3.35rem); }
}

@media (max-width: 560px) {
  .hero { padding-top: 1.5rem; }
  h1 { font-size: clamp(2.65rem, 13.5vw, 3.35rem); }
  .hero__visual { min-height: 27rem; }
  .hero__portrait { right: 0; width: 70%; }
  .hero__mascot { right: 0; width: 32%; }
  .hero__blob--cream { left: -12%; width: 92%; }
  .hero__blob--lime { right: -6%; width: 48%; }
  .hero__rays--top { right: -4%; width: 7rem; }
  .bubble { width: 10.5rem; }
  .bubble p { font-size: 0.86rem; line-height: 1.5; }
  .bubble--top { left: -3%; }
  .bubble--right { right: 0; top: 49%; }
  .actions { display: grid; }
  .button { width: 100%; white-space: normal; text-align: center; }
  .mini-list { grid-template-columns: 1fr; }
  .footer__inner { display: grid; justify-items: start; }
}