:root{--color-white:#fff;--color-offwhite:#f8f9fa;--color-light-gray:#f1f5f9;--color-border:#e2e8f0;--color-text-main:#1a202c;--color-text-sub:#4a5568;--color-accent:#cbd5e1;--color-accent-dark:#94a3b8;--color-black:#000;--font-family-ja:"Noto Sans JP", "Hiragino Sans", sans-serif;--font-family-en:"Inter", sans-serif;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000000d, 0 2px 4px -1px #00000008;--shadow-lg:0 10px 15px -3px #0000000d, 0 4px 6px -2px #00000006;--transition-normal:all .3s ease}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family-ja);color:var(--color-text-main);background-color:var(--color-white);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6}h1,h2,h3,h4,h5,h6{letter-spacing:.05em;font-weight:700;line-height:1.3}p{color:var(--color-text-sub)}a{color:inherit;text-decoration:none}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in-up{opacity:0;animation:.8s cubic-bezier(.16,1,.3,1) forwards fadeInUp}.delay-100{animation-delay:.1s}.delay-200{animation-delay:.2s}.delay-300{animation-delay:.3s}.container{max-width:1100px;margin:0 auto;padding:0 24px}.section{padding:100px 0}.section-bg-gray{background-color:var(--color-offwhite)}.section-title{text-align:center;color:var(--color-text-main);margin-bottom:3rem;font-size:2rem;position:relative}.btn-primary{background-color:var(--color-text-main);color:var(--color-white);transition:var(--transition-normal);cursor:pointer;border:1px solid var(--color-text-main);text-align:center;border-radius:4px;padding:16px 40px;font-size:1.125rem;font-weight:500;display:inline-block}.btn-primary:hover{background-color:var(--color-white);color:var(--color-text-main);box-shadow:var(--shadow-md)}.hero{background-position:50%;background-size:cover;align-items:center;min-height:80vh;display:flex;position:relative}.hero:after{content:"";z-index:1;background:linear-gradient(90deg,#fffffff2 0%,#ffffffb3 50%,#ffffff4d 100%);width:100%;height:100%;position:absolute;top:0;left:0}.hero-content{z-index:2;max-width:600px;position:relative}.hero-title{color:var(--color-text-main);margin-bottom:1.5rem;font-size:3rem;line-height:1.4}.hero-title span{display:block}.hero-subtitle{color:var(--color-text-sub);margin-bottom:0;font-size:1.125rem}.problem-card{background:var(--color-white);box-shadow:var(--shadow-sm);border:1px solid var(--color-border);text-align:center;transition:var(--transition-normal);border-radius:8px;height:100%;padding:40px}.problem-card:hover{box-shadow:var(--shadow-md);transform:translateY(-5px)}.problem-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;display:grid}.problem-icon{color:var(--color-accent-dark);margin-bottom:20px;font-size:2.5rem}.solution-content{background-color:var(--color-white);box-shadow:var(--shadow-lg);border:1px solid var(--color-border);text-align:center;border-radius:12px;max-width:800px;margin:0 auto;padding:60px}.solution-lead{color:var(--color-text-sub);font-size:1.25rem;line-height:1.8}.evidence-grid{grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:40px;display:grid}.evidence-item{border-left:4px solid var(--color-text-main);padding-left:24px}.evidence-title{color:var(--color-text-main);margin-bottom:16px;font-size:1.5rem}.evidence-desc{font-size:1.0625rem}.usecases-container{flex-direction:column;gap:60px;display:flex}@media (width>=992px){.usecases-container{flex-direction:row;align-items:center}}.usecases-content{flex:1}.usecases-image{text-align:center;flex:1}.usecases-image img{max-width:100%;height:auto;box-shadow:var(--shadow-md);border-radius:12px}.usecase-list{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;list-style:none;display:grid}.usecase-item{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:6px;align-items:center;gap:12px;padding:16px;font-size:1.125rem;display:flex}.usecase-item:before{content:"✓";color:var(--color-text-main);font-weight:700}.cta-section{background-color:var(--color-text-main);color:var(--color-white);text-align:center;padding:100px 0}.cta-title{color:var(--color-white);margin-bottom:24px;font-size:2rem}.cta-desc{color:var(--color-accent);margin-bottom:40px;font-size:1.125rem}.btn-secondary{background-color:var(--color-white);color:var(--color-text-main);transition:var(--transition-normal);cursor:pointer;border:1px solid var(--color-white);border-radius:4px;padding:16px 40px;font-size:1.125rem;font-weight:500;display:inline-block}.btn-secondary:hover{color:var(--color-white);background-color:#0000}.header{-webkit-backdrop-filter:blur(10px);z-index:100;width:100%;transition:var(--transition-normal);background:#ffffffd9;border-bottom:1px solid #e2e8f099;padding:16px 0;position:fixed;top:0;left:0}.header-container{justify-content:space-between;align-items:center;max-width:1100px;margin:0 auto;padding:0 24px;display:flex}.header-logo{color:var(--color-text-main);letter-spacing:.1em;font-size:1.5rem;font-weight:700}.header-nav ul{gap:32px;list-style:none;display:flex}.header-nav a{color:var(--color-text-sub);transition:var(--transition-normal);font-size:.875rem;font-weight:500}.header-nav a:hover{color:var(--color-text-main)}.footer{background-color:var(--color-white);text-align:center;border-top:1px solid var(--color-border);padding:40px 0}.footer-logo{color:var(--color-text-main);margin-bottom:16px;font-size:1.25rem;font-weight:700}.footer-copy{color:var(--color-accent-dark);font-size:.875rem}@media (width<=768px){.hero-title{font-size:2.25rem}.section{padding:60px 0}.header-nav{display:none}}