:root{--color-primary: #0056b3;--color-primary-light: #e6f0fa;--color-accent: #06c755;--color-accent-hover: #05b34d;--color-text: #333333;--color-text-light: #666666;--color-bg: #f8f9fa;--color-white: #ffffff;--color-border: #e0e0e0;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 2rem;--spacing-xl: 4rem;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--radius-md: 8px;--radius-lg: 16px;--radius-full: 9999px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Noto Sans JP,sans-serif;color:var(--color-text);background-color:var(--color-bg);line-height:1.6}a{text-decoration:none;color:inherit;transition:opacity .3s}ul{list-style:none}img{max-width:100%;height:auto}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}h1,h2,h3{font-weight:700;line-height:1.3}.text-accent{color:var(--color-accent)}.text-center{text-align:center}.btn{display:inline-block;padding:.8rem 2rem;border-radius:var(--radius-full);font-weight:700;cursor:pointer;transition:all .3s ease;border:2px solid transparent}.btn-primary{background-color:var(--color-accent);color:var(--color-white)}.btn-primary:hover{background-color:var(--color-accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-outline{border-color:var(--color-primary);color:var(--color-primary);background-color:transparent}.btn-outline:hover{background-color:var(--color-primary);color:var(--color-white)}.btn-line{background-color:#06c755;color:#fff;font-size:1.1rem;padding:1rem 3rem}.btn-line:hover{background-color:#05b34d;transform:scale(1.05)}.header{position:fixed;top:0;left:0;width:100%;background-color:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:1000;box-shadow:var(--shadow-sm);height:70px;display:flex;align-items:center}.header-container{display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;color:var(--color-primary)}.nav-list{display:flex;gap:var(--spacing-lg);align-items:center}.nav-list a{font-weight:500}.nav-list a:not(.btn):hover{color:var(--color-primary)}.mobile-menu-btn{display:none;background:none;border:none;cursor:pointer}.hero{padding-top:140px;padding-bottom:var(--spacing-xl);background:linear-gradient(135deg,var(--color-bg) 0%,#eef6ff 100%);overflow:hidden}.hero-container{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-xl);align-items:center}.hero-title{font-size:3.5rem;margin-bottom:var(--spacing-md);color:var(--color-primary)}.hero-subtitle{font-size:1.1rem;color:var(--color-text-light);margin-bottom:var(--spacing-lg)}.hero-actions{display:flex;gap:var(--spacing-md)}.hero-visual{position:relative;height:auto;display:flex;justify-content:center;align-items:center}.hero-image{max-width:100%;height:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);animation:slideUp 1s ease-out}.section{padding:80px 0}.section-title{font-size:2.5rem;margin-bottom:3rem;position:relative;display:inline-block;color:var(--color-primary)}.section-subtitle{display:block;font-size:1rem;color:var(--color-text-light);font-weight:400;margin-top:.5rem}.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:2rem}.card{background:var(--color-white);padding:2.5rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:transform .3s ease,box-shadow .3s ease;border:1px solid var(--color-border)}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--color-primary-light)}.card-icon-lg{font-size:3rem;margin-bottom:1.5rem}.service-card h3{margin-bottom:1rem;color:var(--color-primary)}.portfolio-item{background:var(--color-white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);transition:transform .3s}.portfolio-item:hover{transform:translateY(-5px)}.portfolio-content{padding:1.5rem}.portfolio-content h3{margin-bottom:.5rem;color:var(--color-primary)}.coming-soon{text-align:center;padding:4rem;background-color:var(--color-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);font-size:1.5rem;font-weight:700;color:var(--color-text-light);border:1px dashed var(--color-border)}.contact-box{background:linear-gradient(135deg,#fff,#f0f7ff);padding:4rem 2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);text-align:center;border:1px solid var(--color-primary-light)}.contact-actions{margin-top:2rem}.footer{background-color:var(--color-primary);color:var(--color-white);padding:2rem 0;text-align:center}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.hero-container{grid-template-columns:1fr;text-align:center}.hero-title{font-size:2.5rem}.hero-actions{justify-content:center}.nav{display:none;position:absolute;top:70px;left:0;width:100%;background:var(--color-white);padding:1rem;box-shadow:var(--shadow-md)}.nav.active{display:block}.nav-list{flex-direction:column;gap:1rem}.mobile-menu-btn{display:block;width:30px;height:20px;position:relative}.mobile-menu-btn span{display:block;width:100%;height:2px;background-color:var(--color-primary);position:absolute;left:0;transition:.3s}.mobile-menu-btn span:nth-child(1){top:0}.mobile-menu-btn span:nth-child(2){top:9px}.mobile-menu-btn span:nth-child(3){top:18px}.grid-2{grid-template-columns:1fr}}