*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bg:#ffffff;--bg2:#f8f9fa;--bg3:#e9ecef;--bg4:#dee2e6;--navy:#1a2f5e;--navy2:#243b7a;--amber:#e07b00;--amber-light:#fff3dc;--red:#dc3545;--green:#198754;--text:#1a1a2e;--text-muted:#6c757d;--text-light:#adb5bd;--shadow:0 2px 12px rgba(0,0,0,0.08);--shadow-lg:0 8px 32px rgba(0,0,0,0.12);--radius:14px}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:Helvetica Neue,Arial,Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif;line-height:1.7;font-size:16px}a{color:inherit;text-decoration:none}.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:80px 24px 60px;background:linear-gradient(160deg,#eef2ff,#fef9ec 60%,#ffffff);position:relative;overflow:hidden}.hero:before{content:"¥";position:absolute;font-size:40vw;font-weight:900;color:rgba(26,47,94,.04);top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}.hero-label{display:inline-block;background:var(--navy);color:#fff;font-size:.75rem;font-weight:700;letter-spacing:.1em;padding:5px 16px;border-radius:99px;margin-bottom:28px}.hero-title{font-size:clamp(2rem,7vw,4rem);font-weight:900;line-height:1.2;margin-bottom:12px;letter-spacing:-.02em;color:var(--navy)}.hero-title span{color:var(--amber)}.hero-subtitle{font-size:clamp(1rem,3vw,1.4rem);color:var(--text-muted);margin-bottom:36px;font-weight:400}.hero-copy{max-width:560px;font-size:1.05rem;color:var(--text-muted);line-height:1.9;margin-bottom:48px}.hero-copy strong{color:var(--text)}.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--navy);color:#fff;font-weight:800;font-size:1rem;padding:16px 36px;border-radius:99px;transition:transform .2s,box-shadow .2s,background .2s;box-shadow:0 4px 20px rgba(26,47,94,.25)}.btn-primary:hover{background:var(--navy2);transform:translateY(-2px);box-shadow:0 8px 28px rgba(26,47,94,.35)}.hero-scroll{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);color:var(--text-light);font-size:.8rem;display:flex;flex-direction:column;align-items:center;gap:6px;animation:bounce 2s infinite}@keyframes bounce{0%,to{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(6px)}}.section{padding:80px 24px;max-width:900px;margin:0 auto}.section-label{font-size:.72rem;font-weight:700;letter-spacing:.15em;color:var(--amber);text-transform:uppercase;margin-bottom:12px}.section-title{font-size:clamp(1.6rem,4vw,2.4rem);font-weight:900;margin-bottom:16px;line-height:1.3;color:var(--navy)}.section-desc{color:var(--text-muted);font-size:1rem;max-width:600px;line-height:1.9}.story-bg{background:var(--bg2);border-top:1px solid var(--bg3);border-bottom:1px solid var(--bg3)}.story-inner{padding:80px 24px;max-width:760px;margin:0 auto}.story-text{font-size:1.05rem;line-height:2.1;color:var(--text-muted);margin-top:32px}.story-text strong{color:var(--text)}.story-text p+p{margin-top:20px}.chapters-grid{display:grid;grid-gap:12px;gap:12px;margin-top:40px}.chapter-card{display:grid;grid-template-columns:64px 1fr;grid-gap:20px;gap:20px;align-items:start;background:var(--bg);border:1px solid var(--bg3);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:box-shadow .2s,transform .2s}.chapter-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.chapter-num{width:52px;height:52px;border-radius:50%;background:var(--navy);display:flex;align-items:center;justify-content:center;font-size:.68rem;font-weight:700;color:#fff;text-align:center;line-height:1.3;flex-shrink:0}.chapter-title{font-size:1.1rem;font-weight:700;margin-bottom:6px;color:var(--navy)}.chapter-desc{font-size:.9rem;color:var(--text-muted);line-height:1.7}.chapter-enemy{display:inline-flex;align-items:center;gap:4px;font-size:.75rem;color:var(--red);margin-top:8px;font-weight:600}.chars-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));grid-gap:16px;gap:16px;margin-top:40px}.char-card{background:var(--bg);border:1px solid var(--bg3);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:box-shadow .2s,transform .2s}.char-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.char-card.enemy{border-left:4px solid var(--red)}.char-card.ally{border-left:4px solid var(--green)}.char-card.hero{border-left:4px solid var(--amber)}.char-card.rival{border-left:4px solid #6366f1}.char-role{font-size:.7rem;font-weight:700;letter-spacing:.1em;margin-bottom:8px;text-transform:uppercase}.char-card.enemy .char-role{color:var(--red)}.char-card.ally .char-role{color:var(--green)}.char-card.hero .char-role{color:var(--amber)}.char-card.rival .char-role{color:#6366f1}.char-name{font-size:1.2rem;font-weight:800;margin-bottom:4px;color:var(--navy)}.char-age{font-size:.8rem;margin-bottom:12px}.char-age,.char-desc{color:var(--text-muted)}.char-desc{font-size:.9rem;line-height:1.7}.char-like{margin-top:10px;font-size:.8rem;color:var(--text-light);font-style:italic}.enemy-bg{background:#fff5f5;border-top:1px solid #fecaca;border-bottom:1px solid #fecaca}.enemy-pyramid{display:flex;flex-direction:column;align-items:center;gap:12px;margin-top:48px}.pyramid-row{display:flex;justify-content:center;gap:12px;width:100%}.pyramid-card{background:var(--bg);border:1px solid #fecaca;border-radius:var(--radius);padding:20px 24px;text-align:center;box-shadow:var(--shadow);transition:box-shadow .2s}.pyramid-card:hover{box-shadow:var(--shadow-lg)}.pyramid-card.boss{border-color:#f87171;background:#fff1f1;max-width:320px;width:100%}.pyramid-card.mid{max-width:280px;width:100%}.pyramid-card.small{max-width:240px;width:100%}.pyramid-card.outer{max-width:220px;width:100%;border-color:#bfdbfe;background:#eff6ff}.pyramid-level{font-size:.65rem;font-weight:700;letter-spacing:.1em;color:var(--red);margin-bottom:6px;text-transform:uppercase}.pyramid-card.outer .pyramid-level{color:#2563eb}.pyramid-name{font-size:1rem;font-weight:800;margin-bottom:4px;color:var(--navy)}.pyramid-tag{font-size:.8rem;color:var(--text-muted)}.pyramid-arrow{font-size:1.2rem;color:var(--text-light)}.mentor-card{background:#f0fdf4;border:1px solid #86efac;border-radius:var(--radius);padding:40px;margin-top:40px;display:grid;grid-template-columns:auto 1fr;grid-gap:32px;gap:32px;align-items:start;box-shadow:var(--shadow)}.mentor-icon{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,#16a34a,#22c55e);display:flex;align-items:center;justify-content:center;font-size:2rem;flex-shrink:0}.mentor-name{font-size:1.4rem;font-weight:800;margin-bottom:4px;color:var(--navy)}.mentor-title{font-size:.85rem;color:var(--green);margin-bottom:16px;font-weight:600}.mentor-desc{font-size:.95rem;color:var(--text-muted);line-height:1.8;margin-bottom:20px}.mentor-quotes{display:flex;flex-direction:column;gap:10px}.mentor-quote{background:#fff;border-left:3px solid var(--green);padding:10px 16px;border-radius:0 8px 8px 0;font-size:.9rem;color:#374151;font-style:italic;box-shadow:0 1px 4px rgba(0,0,0,.06)}.cta-bg{background:linear-gradient(160deg,#1a2f5e,#243b7a)}.cta-inner{padding:100px 24px;max-width:640px;margin:0 auto;text-align:center}.cta-title{font-size:clamp(1.8rem,5vw,3rem);font-weight:900;line-height:1.3;margin-bottom:20px;color:#fff}.cta-title span{color:var(--amber)}.cta-desc{color:rgba(255,255,255,.7);font-size:1rem;line-height:1.9;margin-bottom:40px}.cta-buttons{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}.btn-secondary{display:inline-flex;align-items:center;gap:8px;background:transparent;color:#fff;font-weight:700;font-size:.95rem;padding:14px 28px;border-radius:99px;border:2px solid rgba(255,255,255,.3);transition:border-color .2s,background .2s}.btn-secondary:hover{border-color:rgba(255,255,255,.8);background:rgba(255,255,255,.08)}.footer{background:var(--bg2);border-top:1px solid var(--bg3);padding:32px 24px;text-align:center;font-size:.85rem}.footer,.footer a{color:var(--text-muted)}.footer a:hover{color:var(--amber)}.footer-links{display:flex;gap:24px;justify-content:center;margin-top:12px;flex-wrap:wrap}.divider{width:48px;height:3px;background:var(--amber);border-radius:99px;margin:20px 0 32px}@media (max-width:600px){.mentor-card{grid-template-columns:1fr}.mentor-icon{margin:0 auto}.mentor-name,.mentor-title{text-align:center}.pyramid-row{flex-direction:column;align-items:center}}