*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#fff;--surface:#f7f7fa;--text:#1a1a2e;--text-secondary:#5c5c72;--border:rgba(0,0,0,.08);--primary:#E8445A;--primary-soft:rgba(232,68,90,.08);--gradient:linear-gradient(135deg,rgb(160,0,255),rgb(232,0,120),rgb(255,20,20))}
body{font-family:'Inter','Noto Sans JP',-apple-system,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.8}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;backdrop-filter:blur(20px);background:rgba(255,255,255,.92);border-bottom:1px solid var(--border)}
.nav-container{max-width:800px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:8px}.nav-logo img{width:32px;height:32px;object-fit:contain}.nav-logo span{font-size:20px;font-weight:800;color:var(--text)}
.nav-back{font-size:14px;font-weight:600;color:var(--text-secondary)}
.hero{padding:104px 24px 36px;background:linear-gradient(180deg,#fff5f5 0%,#fff 100%)}.hero-inner{max-width:760px;margin:0 auto}
.crumb{font-size:13px;color:var(--text-secondary);margin-bottom:14px}
.tag{display:inline-block;padding:5px 14px;background:var(--primary-soft);border:1px solid rgba(232,68,90,.2);border-radius:20px;font-size:13px;font-weight:600;color:var(--primary);margin:0 6px 10px 0}
h1{font-size:30px;font-weight:900;line-height:1.4;margin:6px 0 12px}
.teacher{font-size:16px;color:var(--text-secondary);font-weight:600}.summary-line{font-size:15px;color:#333;margin-top:14px}
main{max-width:760px;margin:0 auto;padding:8px 24px 72px}
h2{font-size:22px;font-weight:800;margin:44px 0 18px;padding-bottom:10px;border-bottom:2px solid rgba(232,68,90,.25)}
table.facts,table.classes{width:100%;border-collapse:collapse;font-size:15px}
table.facts th{width:34%;background:var(--surface);font-weight:600;padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}
table.facts td{padding:12px 16px;border-bottom:1px solid var(--border);color:#333}
table.classes th{background:var(--surface);font-weight:600;padding:10px 12px;text-align:left;border-bottom:2px solid rgba(232,68,90,.25);font-size:14px}
table.classes td{padding:10px 12px;border-bottom:1px solid var(--border);color:#333;font-size:14px}
.rate{display:flex;align-items:center;gap:12px;margin-bottom:12px}.rate-label{width:84px;font-size:14px;font-weight:600;color:var(--text-secondary);flex-shrink:0}
.rate-bar{flex:1;height:12px;background:var(--surface);border-radius:6px;overflow:hidden}.rate-bar span{display:block;height:100%;background:var(--gradient);border-radius:6px}
.rate-val{width:48px;text-align:right;font-size:15px;font-weight:700;flex-shrink:0}
.note{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px 22px;margin:22px 0;font-size:14px;color:var(--text-secondary)}.note a{font-weight:600}
.faq dt{font-weight:700;margin-top:14px}.faq dd{color:#333;margin:4px 0 0 0;font-size:15px}
.cta{background:#1a1a2e;border-radius:20px;padding:36px 32px;margin:44px 0 8px;text-align:center;position:relative;overflow:hidden}
.cta::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient)}
.cta h3{font-size:21px;font-weight:800;color:#fff;margin-bottom:10px}.cta p{font-size:15px;color:#a0a0b8;margin-bottom:22px}
.cta-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;background:var(--gradient);color:#fff;border-radius:50px;font-size:15px;font-weight:600}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(232,68,90,.3);text-decoration:none}
.related{display:flex;flex-wrap:wrap;gap:8px}.related a{display:inline-block;padding:8px 14px;background:var(--surface);border:1px solid var(--border);border-radius:10px;font-size:14px;color:var(--text)}
.list{list-style:none}.list li{border-bottom:1px solid var(--border);padding:10px 0;font-size:15px}.list li small{color:var(--text-secondary);margin-left:8px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}.grid a{display:block;padding:14px 16px;background:var(--surface);border:1px solid var(--border);border-radius:12px;color:var(--text);font-weight:600}.grid a small{display:block;font-weight:400;color:var(--text-secondary);font-size:13px}
footer{max-width:760px;margin:0 auto;padding:32px 24px 56px;border-top:1px solid var(--border);text-align:center}footer p{font-size:13px;color:var(--text-secondary);margin-bottom:6px}
@media(max-width:640px){h1{font-size:23px}.hero{padding:92px 20px 28px}main{padding:8px 20px 56px}table.facts th{width:40%;padding:10px 12px}table.facts td{padding:10px 12px}}