:root{--primary-color:#007AFF;--primary-hover:#0062CC;--secondary-color:#0A0A0A;--text-color:#333333;--text-light:#666666;--bg-color:#FFFFFF;--bg-light:#F8F9FA;--bg-dark:#121212;--white:#FFFFFF;--border-color:#E5E5E5;--font-base:"Noto Sans JP",sans-serif;--radius-btn:50px;--radius-card:20px;--shadow-card:0 20px 40px rgba(0,0,0,0.05);--container-width:1280px;--spacing-md:2rem;--spacing-lg:4rem;--spacing-xl:8rem;--transition-speed:0.3s;--primary-rgb:0,122,255}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-base);color:var(--text-color);line-height:1.6;background-color:var(--bg-color);-webkit-font-smoothing:antialiased;transition:background-color .3s,color .3s}a{text-decoration:none;color:inherit;transition:color var(--transition-speed)}img{max-width:100%;display:block}ul{list-style:none}.container{max-width:var(--container-width);margin:0 auto;padding:0 var(--spacing-md)}.section{padding:80px 0}.section-title{font-size:2.5rem;font-weight:700;text-align:center;margin-bottom:var(--spacing-xl);color:var(--secondary-color);letter-spacing:.05em}.bg-light{background-color:var(--bg-light)}.btn{display:inline-block;padding:.8rem 2rem;border-radius:var(--radius-btn);font-weight:700;cursor:pointer;transition:all var(--transition-speed);border:none}.btn-primary{background-color:var(--primary-color);color:var(--white)}[data-theme=cyber] .btn-primary,[data-theme=luxury] .btn-primary{color:#000}.btn-primary:hover{background-color:var(--primary-hover);transform:translateY(-2px);box-shadow:0 6px 12px rgba(0,0,0,.15)}.btn-lg{font-size:1.1rem;padding:1rem 3rem}.header{position:fixed;top:0;left:0;width:100%;z-index:1000;background-color:rgba(255,255,255,.95);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);padding:1rem 0;transition:all var(--transition-speed)}[data-theme=cyber] .header,[data-theme=luxury] .header{background-color:rgba(18,18,18,.95)}.header-container{display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;color:var(--secondary-color);letter-spacing:.1em}.nav-list{display:flex;gap:2rem;align-items:center}.nav-list a{font-weight:500;font-size:.95rem}.nav-list a:hover{color:var(--primary-color)}.mobile-menu-btn{display:none;background:none;border:none;cursor:pointer;width:30px;height:20px;position:relative;z-index:1001}.mobile-menu-btn .bar{position:absolute;width:100%;height:2px;background-color:var(--secondary-color);left:0;transition:all .3s}.mobile-menu-btn .bar:first-child{top:0}.mobile-menu-btn .bar:nth-child(2){top:50%;transform:translateY(-50%)}.mobile-menu-btn .bar:nth-child(3){bottom:0}.mobile-menu-btn.active .bar:first-child{transform:rotate(45deg);top:50%}.mobile-menu-btn.active .bar:nth-child(2){opacity:0}.mobile-menu-btn.active .bar:nth-child(3){transform:rotate(-45deg);bottom:auto;top:50%}.mobile-menu{position:fixed;top:0;left:0;width:100%;height:100vh;background-color:var(--bg-color);z-index:999;display:flex;justify-content:center;align-items:center;opacity:0;pointer-events:none;transition:opacity var(--transition-speed)}.mobile-menu.active{opacity:1;pointer-events:auto}.mobile-menu ul{text-align:center}.mobile-menu li{margin:1.5rem 0}.mobile-menu a{font-size:1.5rem;font-weight:700;color:var(--text-color)}.hero{padding-top:160px;padding-bottom:100px;background-color:var(--bg-color);min-height:80vh;display:flex;align-items:center;background-image:radial-gradient(circle at 10% 20%,rgba(var(--primary-rgb),.05) 0,transparent 20%),radial-gradient(circle at 90% 80%,rgba(var(--primary-rgb),.05) 0,transparent 20%)}.hero-title{font-size:3.5rem;line-height:1.2;margin-bottom:var(--spacing-lg);color:var(--secondary-color)}.hero-subtitle{font-size:1.25rem;color:var(--text-light);margin-bottom:2.5rem;max-width:600px}.fade-in{opacity:0;transform:translateY(20px);animation:fadeInUp .8s forwards}.delay-1{animation-delay:.2s}.delay-2{animation-delay:.4s}.delay-3{animation-delay:.6s}@keyframes fadeInUp{to{opacity:1;transform:translateY(0)}}.visible{opacity:1!important;transform:translateY(0)!important}.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:2rem;gap:2rem}.service-card{background:var(--white);padding:2.5rem;border-radius:var(--radius-card);border:1px solid var(--border-color);transition:all var(--transition-speed);box-shadow:0 4px 6px rgba(0,0,0,.02)}[data-theme=cyber] .service-card,[data-theme=luxury] .service-card{background-color:#1A1A1A;border-color:#333}.service-card:hover{transform:translateY(-10px);box-shadow:var(--shadow-card);border-color:transparent}[data-theme=cyber] .service-card:hover{border-color:var(--primary-color)}.service-icon{font-size:3rem;margin-bottom:1.5rem}.service-title{font-size:1.5rem;margin-bottom:1rem;color:var(--secondary-color)}.service-desc{color:var(--text-light);margin-bottom:1.5rem;height:5rem;overflow:hidden}.link-arrow{color:var(--primary-color);font-weight:700;display:inline-flex;align-items:center}.link-arrow:hover{text-decoration:underline}.company-info{max-width:800px;margin:0 auto;border-top:1px solid var(--border-color)}.info-row{display:flex;padding:1.5rem 0;border-bottom:1px solid var(--border-color)}.info-row dt{width:200px;font-weight:700;flex-shrink:0}.info-row dd ul{list-style:disc;padding-left:1.5rem}.contact-container{text-align:center}.contact-text{font-size:1.2rem;margin-bottom:2rem}.footer{background-color:var(--secondary-color);color:var(--white);padding:4rem 0 2rem}.footer-container{display:flex;flex-direction:column;align-items:center;gap:2rem}.footer-logo{font-size:1.5rem;font-weight:700;letter-spacing:.1em}.footer-nav ul{display:flex;gap:2rem}.footer-nav a{color:#AAAAAA}.footer-nav a:hover{color:var(--white)}.copyright{color:#666666;font-size:.9rem;margin-top:2rem}@media (max-width:768px){.hero-title{font-size:2.5rem}.nav{display:none}.mobile-menu-btn{display:block}.info-row{flex-direction:column;gap:.5rem}.info-row dt{width:100%}}