:root{--ink:#233e36;--pink:#f6e9e6;--rose:#a54f59;--paper:#fcfaf6;--line:#deded4;--muted:#59665f}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:130px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif;line-height:1.9}a{color:inherit;text-decoration:none}button{font:inherit}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--rose);outline-offset:5px}.skip{position:absolute;top:-80px;padding:10px;background:white;z-index:99}.skip:focus{top:0}header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:20px 5%;background:rgba(252,250,246,.97);position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;line-height:1.1;font-size:26px;font-weight:800;letter-spacing:2px}.brand small{display:block;font-size:10px;letter-spacing:2px;margin-top:8px}.flower{font-size:44px;color:var(--rose);line-height:1}nav{display:flex;align-items:center;gap:26px;font-size:13px;font-weight:700}nav a:hover,.text-link:hover{color:var(--rose)}.nav-contact{background:var(--ink);color:white;padding:11px 20px;border-radius:4px}.menu{display:none}.hero{max-width:1440px;margin:auto;display:grid;grid-template-columns:1.05fr 1fr;min-height:590px;overflow:hidden}.hero-copy{padding:64px 0 65px 10%}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:700;color:var(--rose);margin:0 0 20px}h1{font-size:clamp(32px,3.7vw,55px);letter-spacing:.02em;line-height:1.55;margin:0 0 20px;font-weight:800}h1 em{font-style:normal;color:var(--rose)}.intro{font-size:16px;line-height:2}.tags{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0}.tags span{font-size:12px;border:1px solid var(--line);padding:5px 14px;border-radius:30px;background:white}.actions{display:flex;align-items:center;gap:25px;margin-top:30px}.button{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:16px 24px;border-radius:5px;background:var(--ink);color:white;font-size:14px;font-weight:700;transition:transform .2s}.button:hover{transform:translateY(-2px)}.text-link{font-size:13px;font-weight:700;border-bottom:1px solid;padding-bottom:6px}.hero-visual{position:relative;align-self:stretch;display:flex;align-items:end;isolation:isolate}.hero-circle{position:absolute;background:var(--pink);width:600px;height:600px;top:25px;left:0;border-radius:50%;z-index:-1}.hero-visual img{width:138%;max-width:none;margin-left:-110px;object-fit:contain;align-self:end}.hero-note{position:absolute;right:8%;bottom:50px;background:var(--paper);padding:18px 25px;box-shadow:0 8px 35px #233e3610;transform:rotate(-5deg);border-left:3px solid var(--rose)}.hero-note small{display:block;font-size:11px}.hero-note b{font-size:20px}.visual-label{position:absolute;top:60px;right:30px;writing-mode:vertical-rl;font-size:10px;letter-spacing:3px}.quick{display:grid;grid-template-columns:repeat(4,1fr);max-width:1160px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:5px;padding:25px 0}.quick>*{padding:0 28px;border-right:1px solid var(--line)}.quick>:last-child{border:0}.quick small{display:block;font-size:11px;color:var(--muted)}.quick b{font-size:15px}.section{max-width:1160px;margin:0 auto;padding:95px 35px}.section-top{margin-bottom:42px}.section-top h2,h2{font-size:clamp(25px,2.7vw,38px);line-height:1.6;letter-spacing:.03em;margin:0 0 22px}.section-top p:last-child{font-size:14px;color:var(--muted)}h3{font-size:20px;line-height:1.6;margin:12px 0}p{margin:0 0 18px}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:42px}.features article{border-top:1px solid var(--ink);padding-top:18px}.number{font-size:35px;font-family:Georgia,serif;color:var(--rose)}.features p,.learning-grid p,.parents p{font-size:14px;color:var(--muted)}.learning{max-width:none;background:#f0f2eb;padding-left:max(35px,calc((100vw - 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@media(max-width:950px){header{padding:15px 25px}nav{gap:15px;font-size:11px}.nav-contact{padding:9px 12px}.hero-copy{padding:50px 0 50px 7%}.hero{min-height:540px}.hero-circle{width:500px;height:500px}.actions{gap:15px}.actions .button{padding:14px 15px;font-size:12px}.quick{margin:0 25px}.quick>*{padding:0 16px}.quick b{font-size:12px}.section{padding:70px 30px}.features{gap:25px}.learning-grid article{padding:25px}.parents{gap:35px}.subjects{display:block}footer{flex-wrap:wrap}}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}

/* Existing SAKURA identity */
.brand-logo{display:block;width:104px;height:104px;object-fit:contain}header{padding-top:8px;padding-bottom:8px}footer .brand-logo{width:140px;height:140px}@media(max-width:700px){.brand-logo{width:78px;height:78px}header{padding-top:4px;padding-bottom:4px}html{scroll-padding-top:100px}}