:root{
  --ink:#34231f;
  --muted:#6f625d;
  --cream:#fffaf2;
  --paper:#fffdf8;
  --beige:#f5ead8;
  --rose:#d78f8a;
  --rose-dark:#b96d69;
  --gold:#d6a24c;
  --green:#7f9b73;
  --line:#ead9c0;
  --shadow:0 22px 60px rgba(74,48,32,.13);
  --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
  line-height:1.85;
  background:
    radial-gradient(circle at 10% 0%, rgba(231,174,120,.22), transparent 34%),
    radial-gradient(circle at 88% 5%, rgba(127,155,115,.18), transparent 32%),
    linear-gradient(180deg,#fff8eb 0%,#fffdf8 42%,#fff7ee 100%);
  min-width:320px;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{width:min(1140px, calc(100% - 40px));margin-inline:auto}
.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(16px);
  background:rgba(255,250,242,.88);
  border-bottom:1px solid rgba(234,217,192,.78);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;min-width:max-content}
.logo-mark{
  width:48px;height:48px;border-radius:18px;
  background:linear-gradient(145deg,#d6a24c,#e9c579);
  box-shadow:0 10px 24px rgba(214,162,76,.28);
  display:grid;place-items:center;color:#fff;font-size:24px;font-weight:800;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-weight:800;letter-spacing:.06em;font-size:1.05rem}
.brand-sub{font-size:.76rem;color:var(--muted);letter-spacing:.08em}
.nav-wrap{display:flex;align-items:center;gap:12px}
.nav-links{display:flex;align-items:center;justify-content:flex-end;gap:6px;flex-wrap:wrap}
.nav-links a{
  font-size:.84rem;font-weight:700;color:#5b4942;
  padding:8px 10px;border-radius:999px;transition:.18s ease;
}
.nav-links a:hover,.nav-links a.current{background:#fff;color:var(--rose-dark);box-shadow:0 6px 18px rgba(74,48,32,.08)}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;min-width:max-content;
  padding:10px 15px;border-radius:999px;background:var(--ink);color:#fff;font-weight:800;font-size:.86rem;box-shadow:0 14px 28px rgba(52,35,31,.18)
}
.nav-toggle{display:none;border:0;background:#fff;border-radius:16px;padding:10px 12px;box-shadow:0 8px 20px rgba(74,48,32,.1);font-weight:800;color:var(--ink)}
.hero{padding:64px 0 42px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background:url('../img/note-pattern.svg') top 70px right 7%/280px auto no-repeat;opacity:.9;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.02fr) minmax(360px,.98fr);gap:42px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--rose-dark);font-weight:800;letter-spacing:.1em;font-size:.82rem;background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:999px;padding:7px 13px}
.eyebrow:before{content:"♪";color:var(--gold);font-size:1.1em}
h1,.page-title{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;line-height:1.35;letter-spacing:.04em;margin:.65em 0 .34em;font-size:clamp(2.2rem,4.7vw,4.9rem);font-weight:700}
.hero h1 span{display:inline-block;background:linear-gradient(transparent 64%,rgba(242,198,107,.44) 0)}
.lead{font-size:1.08rem;color:#564843;max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:13px 20px;font-weight:800;letter-spacing:.02em;transition:.18s ease;border:1px solid transparent}
.btn.primary{background:linear-gradient(135deg,var(--rose),var(--rose-dark));color:#fff;box-shadow:0 18px 30px rgba(185,109,105,.25)}
.btn.secondary{background:#fff;border-color:var(--line);color:var(--ink);box-shadow:0 10px 22px rgba(74,48,32,.08)}
.btn:hover{transform:translateY(-2px)}
.hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:30px;max-width:680px}
.meta-card{background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:22px;padding:14px 16px;box-shadow:0 12px 24px rgba(74,48,32,.06)}
.meta-card b{display:block;font-size:1.05rem}.meta-card small{color:var(--muted)}
.photo-card{position:relative;border-radius:38px;overflow:hidden;background:#fff;padding:12px;box-shadow:var(--shadow);transform:rotate(1deg)}
.photo-card img{border-radius:30px;aspect-ratio:4/3;object-fit:cover;filter:saturate(.92) contrast(.98)}
.photo-card:after{content:"";position:absolute;inset:12px;border-radius:30px;background:linear-gradient(180deg,transparent 42%,rgba(52,35,31,.37));pointer-events:none}
.photo-badge{position:absolute;left:30px;bottom:30px;right:30px;z-index:2;background:rgba(255,253,248,.94);border:1px solid rgba(255,255,255,.7);border-radius:24px;padding:14px 18px;box-shadow:0 16px 30px rgba(52,35,31,.18)}
.photo-badge strong{display:block;font-size:1.05rem}.photo-badge span{font-size:.87rem;color:var(--muted)}
.section{padding:58px 0}
.section.compact{padding:38px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-title{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:clamp(1.72rem,3vw,2.8rem);line-height:1.45;margin:0;letter-spacing:.04em}
.section-kicker{color:var(--rose-dark);font-weight:800;letter-spacing:.12em;font-size:.82rem;margin:0 0 8px}.section-head p{margin:0;color:var(--muted);max-width:520px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card-grid.two{grid-template-columns:repeat(2,1fr)}.card-grid.four{grid-template-columns:repeat(4,1fr)}
.card{background:rgba(255,253,248,.88);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 16px 36px rgba(74,48,32,.08);position:relative;overflow:hidden}
.card.soft{background:linear-gradient(180deg,#fffdf8,#fff6ec)}
.card h3{font-size:1.22rem;margin:0 0 10px;letter-spacing:.03em}.card p{color:var(--muted);margin:0}.card .icon{font-size:2rem;color:var(--gold);line-height:1;margin-bottom:14px}
.number{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:16px;background:#fff2dc;color:#a06b18;font-weight:900;margin-bottom:14px}
.ribbon{display:inline-block;background:#fff1f0;color:var(--rose-dark);font-weight:800;border-radius:999px;padding:5px 10px;font-size:.8rem;margin-bottom:12px}
.piano-strip{background:url('../img/piano-keys.svg') center/cover no-repeat;border-radius:30px;min-height:130px;border:1px solid var(--line);box-shadow:0 18px 40px rgba(74,48,32,.08)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.panel{background:#fffdf8;border:1px solid var(--line);border-radius:34px;padding:32px;box-shadow:var(--shadow)}
.panel h2,.panel h3{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;letter-spacing:.04em;line-height:1.45;margin-top:0}.panel p{color:var(--muted)}
.check-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}.check-list li{position:relative;padding-left:30px;color:#5e504b}.check-list li:before{content:"✓";position:absolute;left:0;top:.08em;width:20px;height:20px;border-radius:50%;background:#e8f0e3;color:var(--green);font-weight:900;display:grid;place-items:center;font-size:.8rem}
.flow{counter-reset:step;display:grid;gap:14px}.flow-item{counter-increment:step;display:grid;grid-template-columns:62px 1fr;gap:16px;align-items:start;background:#fffdf8;border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:0 12px 28px rgba(74,48,32,.06)}
.flow-item:before{content:counter(step,decimal-leading-zero);display:grid;place-items:center;width:52px;height:52px;border-radius:18px;background:linear-gradient(135deg,#f3d186,#d6a24c);color:#fff;font-weight:900;letter-spacing:.04em}.flow-item h3{margin:0 0 4px}.flow-item p{margin:0;color:var(--muted)}
.table-wrap{overflow:auto;border-radius:26px;border:1px solid var(--line);box-shadow:0 14px 34px rgba(74,48,32,.07);background:#fffdf8}table{width:100%;border-collapse:collapse;min-width:680px}th,td{padding:16px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:#fff4e2;color:#6b4534;font-weight:900}tr:last-child td{border-bottom:0}td strong{font-size:1.05rem}.note{color:var(--muted);font-size:.92rem;margin-top:12px}
.page-hero{padding:54px 0 30px}.page-hero-card{background:rgba(255,253,248,.86);border:1px solid var(--line);border-radius:38px;padding:38px;box-shadow:var(--shadow);position:relative;overflow:hidden}.page-hero-card:after{content:"";position:absolute;right:-60px;bottom:-70px;width:260px;height:180px;background:url('../img/note-pattern.svg') center/contain no-repeat;opacity:.8}.page-hero-card > *{position:relative;z-index:1}.page-title{font-size:clamp(2rem,4vw,4.1rem);margin:.35em 0 .15em}
.breadcrumb{font-size:.82rem;color:var(--muted);font-weight:700}.breadcrumb a{color:var(--rose-dark)}
.teacher-box{display:grid;grid-template-columns:210px 1fr;gap:24px;align-items:center}.teacher-portrait{width:210px;height:210px;border-radius:50%;background:linear-gradient(145deg,#fff1d7,#e7ada7);display:grid;place-items:center;font-family:"Yu Mincho",serif;font-size:4rem;color:#fff;box-shadow:0 16px 34px rgba(185,109,105,.22)}
.faq{display:grid;gap:14px}.faq details{background:#fffdf8;border:1px solid var(--line);border-radius:22px;padding:18px 22px;box-shadow:0 10px 24px rgba(74,48,32,.05)}.faq summary{cursor:pointer;font-weight:900;color:#4b3934}.faq p{margin:12px 0 0;color:var(--muted)}
.contact-box{display:grid;grid-template-columns:1fr .88fr;gap:20px}.contact-method{display:flex;gap:14px;align-items:flex-start;background:#fffdf8;border:1px solid var(--line);border-radius:24px;padding:20px;margin-bottom:12px}.contact-method .icon{font-size:1.7rem}.tel{font-size:clamp(1.65rem,3vw,2.7rem);font-weight:900;letter-spacing:.03em;color:var(--rose-dark);line-height:1.2}.form{display:grid;gap:12px}.form label{font-weight:800;font-size:.9rem}.form input,.form textarea,.form select{width:100%;border:1px solid var(--line);border-radius:16px;padding:12px 14px;background:#fff;color:var(--ink);font:inherit}.form textarea{min-height:150px;resize:vertical}
.map-card{min-height:360px;border-radius:32px;border:1px solid var(--line);background:linear-gradient(135deg,rgba(255,244,226,.92),rgba(232,240,227,.9)), url('../img/note-pattern.svg') center/300px auto no-repeat;box-shadow:var(--shadow);display:grid;place-items:center;text-align:center;padding:30px}.map-card strong{display:block;font-size:1.5rem}.map-card span{color:var(--muted)}
.gallery{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.gallery img,.gallery .illust{border-radius:30px;box-shadow:var(--shadow);border:1px solid var(--line)}.gallery .illust{background:#fffdf8;padding:20px}.gallery .stack{display:grid;gap:18px}
.cta-band{padding:44px 0}.cta-card{background:linear-gradient(135deg,#47322d,#6f4a41);color:#fff;border-radius:38px;padding:38px;display:flex;align-items:center;justify-content:space-between;gap:24px;box-shadow:0 24px 50px rgba(52,35,31,.22);position:relative;overflow:hidden}.cta-card:before{content:"";position:absolute;inset:0;background:url('../img/note-pattern.svg') top right/340px auto no-repeat;opacity:.28}.cta-card > *{position:relative}.cta-card h2{font-family:"Yu Mincho",serif;font-size:clamp(1.55rem,3vw,2.45rem);line-height:1.45;margin:0 0 8px}.cta-card p{margin:0;color:rgba(255,255,255,.78)}.cta-actions{display:flex;gap:12px;flex-wrap:wrap}.cta-card .btn.secondary{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.32)}
.site-footer{padding:44px 0 28px;background:#35241f;color:#fff;margin-top:40px}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:28px}.site-footer p,.site-footer li{color:rgba(255,255,255,.72)}.site-footer ul{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:6px}.footer-title{font-weight:900;letter-spacing:.06em}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;color:rgba(255,255,255,.55);font-size:.82rem;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}.page-top{color:rgba(255,255,255,.78);font-weight:800}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.badge{background:#fff3e3;border:1px solid #edd9b5;border-radius:999px;padding:6px 11px;font-size:.84rem;font-weight:800;color:#7b5332}.mini-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}.mini-list li{background:#fffdf8;border:1px solid var(--line);border-radius:18px;padding:13px 16px;color:#5e504b}

.panel img{width:100%;display:block;border-radius:24px;object-fit:cover}
.image-panel{padding:18px}
.image-panel img{aspect-ratio:4/3;box-shadow:0 14px 30px rgba(74,48,32,.08)}
.teacher-photo{width:100%;max-width:280px;border-radius:32px;overflow:hidden;box-shadow:0 20px 40px rgba(74,48,32,.14);border:1px solid var(--line);background:#fff}
.teacher-photo img{width:100%;aspect-ratio:1/1;object-fit:cover}
.image-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.image-grid .photo-card{transform:none}
.image-grid .photo-card img{aspect-ratio:4/3}
.image-note{margin-top:12px;color:var(--muted);font-size:.92rem}

@media (max-width:1040px){.hero-grid,.split,.contact-box,.gallery,.image-grid{grid-template-columns:1fr}.hero-photo-wrap{max-width:720px}.card-grid.four{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.cta-card{align-items:flex-start;flex-direction:column}.hero-meta{grid-template-columns:1fr 1fr 1fr}.nav-links a{font-size:.8rem;padding:7px 8px}}
@media (max-width:860px){.header-cta{display:none}.nav-toggle{display:block}.nav-links{display:none;position:absolute;left:20px;right:20px;top:76px;background:#fffdf8;border:1px solid var(--line);border-radius:24px;padding:14px;box-shadow:var(--shadow);align-items:stretch;justify-content:flex-start;max-height:calc(100vh - 96px);overflow:auto}.nav-links.is-open{display:grid;grid-template-columns:1fr 1fr;gap:6px}.nav-links a{padding:10px 12px}.hero{padding-top:42px}.hero-grid{gap:28px}.page-hero-card{padding:28px}.teacher-box{grid-template-columns:1fr;text-align:left}.teacher-portrait{width:170px;height:170px;font-size:3.2rem}.hero-meta{grid-template-columns:1fr}.card-grid,.card-grid.two,.card-grid.four{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:10px}.flow-item{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.container{width:min(100% - 28px, 1140px)}}
@media (max-width:520px){.brand-sub{display:none}.brand-name{font-size:.98rem}.logo-mark{width:42px;height:42px;border-radius:15px}.nav-links.is-open{grid-template-columns:1fr}.hero-actions,.cta-actions{display:grid}.btn{width:100%}.photo-badge{left:22px;right:22px;bottom:22px}.panel,.card{padding:22px}.section{padding:42px 0}.page-title{font-size:2rem}h1{font-size:2.25rem}}