:root{--ink:#18343b;--muted:#5c7075;--cream:#fbf8f0;--gold:#c39a3b;--green:#1d7a5c;--line:#e5e8e6;--shadow:0 18px 50px rgba(24,52,59,.10);--max:1160px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font:16px/1.8 "Noto Sans JP","Yu Gothic",Meiryo,sans-serif}a{color:inherit}img{display:block;max-width:100%}.wrap{width:min(calc(100% - 40px),var(--max));margin:auto}.eyebrow{font-size:.78rem;font-weight:800;letter-spacing:.14em;color:#99721f;text-transform:uppercase}.site-header{height:76px;display:flex;align-items:center;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;backdrop-filter:blur(12px)}.nav{display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none}.brand img{width:118px;height:30px;object-fit:cover}.brand span{font:.76rem Georgia,serif;letter-spacing:.08em;white-space:nowrap}.nav-links{display:flex;align-items:center;gap:22px;font-size:.86rem;font-weight:700}.nav-links a{text-decoration:none}.nav-links a[aria-current=page]{color:#99721f}.menu-btn{display:none;background:none;border:0;font-size:1.4rem}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:0 24px;border-radius:999px;text-decoration:none;font-weight:800;transition:transform .2s}.btn:hover{transform:translateY(-2px)}.btn-line{background:#06c755;color:#fff}.btn-outline{border:1px solid #bfd0ca;background:#fff}.btn-dark{background:var(--ink);color:#fff}.btn-group{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.section{padding:88px 0}.section-head{text-align:center;max-width:760px;margin:0 auto 40px}.section-head p{margin:0 auto;color:var(--muted);max-width:680px}.section h2,.section-title{font-size:clamp(1.9rem,3.5vw,2.7rem);line-height:1.3;letter-spacing:-.03em;margin:8px 0 16px}.section h3{line-height:1.4}.lead{font-size:1.08rem;color:#40585e}.muted{color:var(--muted)}.cream{background:var(--cream)}.pale{background:#f7faf9}.hero{padding:65px 0;background:linear-gradient(120deg,#fff 0 57%,var(--cream) 57%)}.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}.hero h1{font:clamp(2.4rem,4vw,3.65rem)/1.22 Georgia,"Yu Mincho",serif;letter-spacing:-.035em;margin:14px 0 20px}.hero h1 em{font-style:normal;color:#9c7523}.hero img{width:100%;max-height:460px;object-fit:cover;border-radius:28px;box-shadow:var(--shadow)}.hero .lead{max-width:580px}.proofbar{border-block:1px solid var(--line)}.proof-grid{display:grid;grid-template-columns:repeat(4,1fr)}.proof-grid div{text-align:center;padding:21px 14px;border-right:1px solid var(--line);font-size:.85rem;color:var(--muted)}.proof-grid div:last-child{border:0}.proof-grid strong{display:block;color:var(--ink);font-size:1rem}.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}.split img{width:100%;border-radius:24px;box-shadow:var(--shadow)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px}.card h3{margin:0 0 10px;font-size:1.17rem}.card p{margin:0;color:var(--muted)}.card .number{color:#99721f;font-weight:900;font-size:.82rem;letter-spacing:.1em}.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.fact{border-left:3px solid var(--gold);padding:5px 0 5px 16px}.fact strong{display:block}.fact span{color:var(--muted);font-size:.9rem}.quote{background:#f4f8f7;border-radius:20px;padding:24px 28px;font:1.18rem/1.8 Georgia,"Yu Mincho",serif}.price-area{background:var(--ink);color:#fff}.price-area .section-head p{color:#cbd8d7}.prices{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:940px;margin:auto}.price-card{background:#fff;color:var(--ink);border-radius:24px;padding:32px}.price-card h3{margin:0}.amount{font-size:2.55rem;font-weight:900;line-height:1.2;margin:15px 0}.amount small{font-size:.92rem;font-weight:500;color:var(--muted)}.price-card ul{padding-left:1.25em;min-height:100px}.price-card li{margin:.4rem 0}.price-card .btn{width:100%}.note{font-size:.9rem;color:var(--muted)}.price-area .note{color:#cbd8d7;text-align:center;margin:20px auto 0}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.step{border:1px solid var(--line);border-radius:18px;padding:24px;background:#fff}.step b{color:#99721f;font-size:.8rem;letter-spacing:.1em}.step h3{font-size:1.08rem;margin:9px 0}.step p{color:var(--muted);margin:0}.list-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px}.list-panel ul{padding-left:1.3em;margin:0}.list-panel li{margin:.5rem 0}.faq-list{max-width:850px;margin:auto;display:grid;gap:12px}.faq-list details{border:1px solid var(--line);background:#fff;border-radius:15px;padding:18px 22px}.faq-list summary{font-weight:800;cursor:pointer}.faq-list p{color:var(--muted);margin:12px 0 0}.map{border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);width:100%;max-width:950px;margin:auto}.map-caption{text-align:center;color:var(--muted);font-size:.88rem;margin:10px 0 0}.cta{padding:90px 0;text-align:center;background:linear-gradient(120deg,#18343b,#285d5a);color:#fff}.cta h2{font:clamp(2rem,4vw,3.1rem)/1.35 Georgia,"Yu Mincho",serif;margin:0 0 15px}.cta p{color:#d4e0df}.footer{padding:28px 0;background:#12282e;color:#b5c2c4;text-align:center;font-size:.82rem}.footer a{margin:0 8px}.mobile-cta{display:none}section[id]{scroll-margin-top:90px}
@media(max-width:900px){.nav{position:relative}.nav-links{display:none}.nav-links.mobile-open{display:flex;position:absolute;left:0;right:0;top:61px;background:#fff;padding:22px;flex-direction:column;align-items:stretch;border:1px solid var(--line);border-radius:0 0 18px 18px;box-shadow:var(--shadow)}.menu-btn{display:block}.hero-grid,.split{grid-template-columns:1fr}.hero-grid>div:last-child{order:-1}.cards{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr}.proof-grid{grid-template-columns:1fr 1fr}.proof-grid div:nth-child(2){border-right:0}.section{padding:68px 0}.mobile-cta{display:flex;position:fixed;left:14px;right:14px;bottom:14px;z-index:80;background:#06c755;color:#fff;text-decoration:none;border-radius:999px;height:56px;align-items:center;justify-content:center;font-weight:900;box-shadow:0 12px 35px rgba(0,0,0,.22)}body{padding-bottom:80px}}
@media(max-width:600px){.wrap{width:min(calc(100% - 28px),var(--max))}.hero{padding:35px 0}.hero h1{font-size:2.35rem}.btn-group .btn{width:100%}.cards,.steps,.prices,.facts,.proof-grid{grid-template-columns:1fr}.proof-grid div{border-right:0;border-bottom:1px solid var(--line)}.section-head{text-align:left}.price-card{padding:26px}.hero img{max-height:340px}.cta{padding:70px 0}}
.story-card .facts{margin-top:24px}
.steps-six{grid-template-columns:repeat(3,1fr)}
@media(max-width:900px){.steps-six{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.steps-six{grid-template-columns:1fr}}
#whole-brain-story .btn{margin-top:8px}
.teacher-hero h1{font-size:clamp(2.2rem,3vw,3rem)}
@media(max-width:600px){.teacher-hero h1{font-size:2rem}}