:root{--color-black: #111;--color-dark: #1a1a1a;--color-text: #333;--color-text-light: #666;--color-border: #e0e0e0;--color-bg: #fafafa;--color-bg-alt: #f3f3f3;--color-white: #fff;--color-accent: #2a2a2a;--font-sans: "Inter", "Noto Sans JP", -apple-system, sans-serif;--easing: cubic-bezier(.22, 1, .36, 1);--transition: .4s var(--easing)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-white);line-height:1.9;font-size:16px;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-feature-settings:"palt"}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}ul,ol{list-style:none}.hidden-sp{display:none}.hidden-pc{display:inline}@media(min-width:768px){.hidden-sp{display:inline}.hidden-pc{display:none}}.container{width:100%;max-width:960px;margin:0 auto;padding:0 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a{color:#fff;font-size:.9rem;font-weight:600;letter-spacing:.04em;transition:color var(--transition)}.nav-desktop a:hover{color:#ccf0ff}.header.scrolled .nav-desktop a{color:var(--color-dark)}.header.scrolled .nav-desktop a:hover{color:#08f}.nav-contact{padding:8px 24px;background:#fff;color:#005a9e!important;border-radius:24px;font-weight:600;transition:all var(--transition);box-shadow:0 2px 10px #0000001a}.nav-contact:hover{background:#f0f9ff;transform:translateY(-2px);box-shadow:0 4px 16px #fff6}.header.scrolled .nav-contact{background:var(--color-dark);color:var(--color-white)!important}.header.scrolled .nav-contact:hover{background:#08f}.menu-toggle{display:flex;flex-direction:column;gap:8px;cursor:pointer;z-index:101;padding:4px;background:none;border:none}.bar{display:block;width:24px;height:2px;background:#fff;border-radius:2px;transition:all var(--transition)}.header.scrolled .bar{background:var(--color-dark)}.menu-toggle.active .bar:first-child{transform:rotate(45deg) translate(4px,5px)}.menu-toggle.active .bar:last-child{transform:rotate(-45deg) translate(4px,-5px)}.mobile-nav{position:fixed;top:0;left:0;width:100%;height:100vh;background:var(--color-dark);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:32px;z-index:99;opacity:0;visibility:hidden;transition:all var(--transition)}.mobile-nav.active{opacity:1;visibility:visible}.mobile-nav a{color:var(--color-white);font-size:1.2rem;font-weight:400;letter-spacing:.08em;opacity:.8;transition:opacity var(--transition)}.mobile-nav a:hover{opacity:1}@media(min-width:768px){.nav-desktop{display:flex}.menu-toggle{display:none}}.hero{position:relative;height:100vh;min-height:600px;display:flex;align-items:center;justify-content:center;background:var(--color-dark);color:var(--color-white);overflow:hidden}.hero:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(ellipse at 20% 50%,rgba(60,60,80,.3) 0%,transparent 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0}.section-label{display:inline-block;font-size:.75rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--color-text-light);margin-bottom:20px}.section-title{font-size:1.5rem;font-weight:700;color:var(--color-dark);margin-bottom:48px;line-height:1.4}.section-title-large{font-size:clamp(1.6rem,4vw,2.4rem);font-weight:700;color:var(--color-dark);line-height:1.5;margin-bottom:48px}.section-why{background:var(--color-white)}.why-layout{position:relative}.why-body{max-width:640px;position:relative;z-index:2}.why-body p{font-size:1rem;line-height:2.2;color:var(--color-text);margin-bottom:28px}.why-body p:last-child{margin-bottom:0}.why-plane{position:absolute;right:-160px;top:0;width:580px;max-width:100%;animation:planeFloat 4s ease-in-out infinite;pointer-events:none}.why-plane-img{width:100%;height:auto;filter:drop-shadow(0 12px 24px rgba(0,60,120,.15));transition:transform .6s var(--easing)}.why-plane:hover .why-plane-img{transform:scale(1.05) 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.step-content{padding-bottom:0}.step-title{font-size:1.2rem;font-weight:700;color:var(--color-dark);margin-bottom:10px;letter-spacing:.02em;line-height:1.5}.step-desc{font-size:.92rem;line-height:2;color:var(--color-text-light);letter-spacing:.01em;transition:color .4s var(--easing)}.approach-step:hover .step-desc{color:var(--color-text)}.approach-image{flex:1;position:relative;display:flex;align-items:center;justify-content:center;padding:24px;min-height:480px}.approach-image:before,.approach-image:after{content:"";position:absolute;border-radius:50%;z-index:0;pointer-events:none}.approach-image:before{width:320px;height:320px;border:1px dashed rgba(0,140,255,.4);top:50%;left:50%;transform:translate(-50%,-50%);animation:spinSlow 30s linear infinite}.approach-image:after{width:440px;height:440px;border:1px dashed rgba(0,200,255,.2);top:50%;left:50%;transform:translate(-50%,-50%);animation:spinSlow reverse 40s linear 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#0050a026;z-index:5;white-space:nowrap}.badge-top{top:-20px;right:-20px}.badge-bottom{bottom:-20px;left:-20px}.approach-img-glow{position:absolute;top:50%;left:50%;width:120%;height:120%;transform:translate(-50%,-50%);background:radial-gradient(circle at center,rgba(0,140,255,.2) 0%,rgba(0,200,255,.05) 50%,transparent 70%);z-index:1;pointer-events:none;animation:pulseGlow 6s ease-in-out infinite}.approach-img{width:100%;height:auto;border-radius:16px;display:block;box-shadow:0 12px 32px #00000014;transition:transform .6s var(--easing);position:relative;z-index:2}.approach-img-wrapper:hover .approach-img{transform:scale(1.03)}.approach-img-overlay{position:absolute;inset:16px;border-radius:16px;background:linear-gradient(135deg,rgba(255,255,255,.5) 0%,transparent 40%,rgba(255,255,255,.1) 100%);pointer-events:none;z-index:3}@keyframes pulseGlow{0%,to{opacity:.7;transform:translate(-50%,-50%) scale(.95)}50%{opacity:1;transform:translate(-50%,-50%) scale(1.05)}}@keyframes 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28px}}.section-vision{background:var(--color-bg)}.vision-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--color-border);max-width:640px}.vision-item{background:var(--color-white);padding:32px}.vision-text{font-size:1.05rem;font-weight:600;color:var(--color-dark);margin-bottom:8px}.vision-desc{font-size:.9rem;line-height:1.9;color:var(--color-text-light)}@media(min-width:768px){.vision-grid{grid-template-columns:1fr 1fr;max-width:100%}}.section-company{background:var(--color-white);position:relative}.message-author-wrap{display:flex;align-items:center;gap:16px;margin-top:24px}.message-author-photo{width:180px;height:230px;border-radius:6px;object-fit:cover;object-position:center top;flex-shrink:0}.company-grid{display:grid;grid-template-columns:1fr;gap:60px}.company-message blockquote{font-size:1.05rem;line-height:2.2;color:var(--color-text);padding-left:20px;border-left:2px solid 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var(--transition)}.btn-submit:hover{background:var(--color-black)}.btn-submit:disabled{opacity:.6;cursor:not-allowed}.form-success{text-align:center;font-size:1.125rem;line-height:1.8;padding:3rem 0;color:var(--color-black)}@media(min-width:768px){.contact-wrapper{grid-template-columns:1fr 1fr}}.footer{background:var(--color-white);padding:10px 0;border-top:1px solid var(--color-border)}.footer-inner{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}.footer-logo img{height:100px;width:auto}.footer-bottom{display:flex;flex-direction:column;align-items:center;gap:8px}.footer-links{display:flex;gap:16px}.footer-links a{font-size:.75rem;color:var(--color-text-light);text-decoration:none;transition:color .3s ease}.footer-links 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ul{display:flex;flex-wrap:wrap;gap:8px}.what-card-details li{font-size:.85rem;color:var(--color-text);background:var(--color-bg);padding:6px 14px;border-radius:4px;line-height:1.5}.section-philosophy{background:var(--color-bg);padding:120px 0}.section-philosophy .section-label{color:var(--color-text-light)}.section-philosophy .section-title-large{color:var(--color-dark)}.philosophy-layout{display:flex;align-items:center;gap:48px;margin-top:48px}.philosophy-body{flex:1}.philosophy-body p{font-size:1rem;line-height:2;color:var(--color-text);margin-bottom:20px}.philosophy-body p:last-child{margin-bottom:0}.philosophy-image{flex:1}.philosophy-img{width:100%;height:auto;border-radius:24px}@media(max-width:768px){.philosophy-layout{flex-direction:column;gap:32px}}.company-message-body{margin-top:24px}.company-message-body p{font-size:.95rem;line-height:2;color:var(--color-text);margin-bottom:16px}.company-message-body p:last-child{margin-bottom:0}.client-logo-item--more{opacity:.6}.client-logo-item--more .client-name-text{font-style:italic}