:root{--color-primary: #00a0e9;--color-primary-dark: #0077b6;--color-accent: #f5c518;--color-accent-dark: #d4a012;--color-pop-pink: #f48fb1;--color-pop-green: #5dc46b;--color-pop-yellow: #ffd54f;--color-text: #1f2937;--color-text-light: #4b5563;--color-bg: #ffffff;--color-bg-soft: #f0f8fc;--color-border: #e5e7eb;--font-base: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic Medium", "Meiryo", sans-serif;--shadow-sm: 0 2px 4px rgba(0, 119, 182, .08);--shadow-md: 0 6px 18px rgba(0, 119, 182, .12);--radius: 12px;--container: 1100px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-base);color:var(--color-text);background:var(--color-bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}.container{max-width:var(--container);margin:0 auto;padding:0 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a:hover{color:#fff}.footer-nav h5{color:#fff;font-size:.9rem;margin-bottom:16px;letter-spacing:.05em}.footer-nav ul{list-style:none}.footer-nav li{margin-bottom:8px}.footer-nav a{color:#9ca3af;transition:color .2s}.footer-nav a:hover{color:#fff}.footer-bottom{border-top:1px solid #374151;padding-top:24px;text-align:center;color:#9ca3af;font-size:.85rem}.nav-toggle{display:none;background:none;border:none;width:40px;height:40px;cursor:pointer;padding:8px}.nav-toggle span{display:block;width:24px;height:2px;background:var(--color-text);margin:5px auto;transition:.3s}@media(max-width:767px){.container{padding:0 20px}.nav{height:64px}.nav-logo img{height:36px}.nav-menu{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:16px 20px;border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-md)}.nav-menu.is-open{display:flex}.nav-menu li{width:100%}.nav-menu a{display:block;padding:12px 0;border-bottom:1px solid var(--color-border)}.nav-menu li:last-child a{border-bottom:none}.nav-menu .nav-cta{display:block;text-align:center;margin-top:8px;padding:14px 20px}.nav-toggle{display:block}.hero{padding:48px 0 56px}.hero-grid{grid-template-columns:1fr;gap:32px}.hero h1{font-size:1.75rem;line-height:1.4}.hero-lead{font-size:.95rem}.hero-cta-group{flex-direction:column}.btn-primary,.btn-secondary{width:100%;justify-content:center;padding:14px 24px;font-size:.95rem}.section{padding:56px 0}.section-heading{margin-bottom:36px}.section-heading h2{font-size:1.5rem}.strengths-grid{grid-template-columns:1fr;gap:16px}.strength-card{padding:28px 20px}.about-grid{grid-template-columns:1fr;gap:32px}.about-body h3{font-size:1.2rem}.story{padding:56px 0}.story h2{font-size:1.3rem}.story p{font-size:.95rem;line-height:1.9}.order-box{padding:36px 24px}.order-box 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h1{font-size:1.6rem}.product-tagline{font-size:.95rem}.product-price-amount{font-size:1.5rem}.product-cta-group{flex-direction:column}.product-cta-group .btn-primary,.product-cta-group .btn-secondary{min-width:0;width:100%}.product-specs-table th,.product-specs-table td{display:block;width:100%;padding:12px 16px}.product-specs-table th{border-bottom:none;padding-bottom:4px;font-size:.9rem}.product-description h2{font-size:1.25rem;margin:36px 0 16px}.product-grid{grid-template-columns:1fr;gap:20px}.product-card-body{padding:20px}.product-card-title{font-size:1.2rem}}