:root{--c-primary:#0f172a;--c-primary-light:#1e293b;--c-accent:#38bdf8;--c-accent-dark:#0284c7;--c-line:#06c755;--c-bg:#f8fafc;--c-bg-light:#fff;--c-text:#334155;--c-text-light:#64748b;--font-base:"Inter", "Noto Sans JP", sans-serif;--transition-fast:.2s cubic-bezier(.4, 0, .2, 1);--transition-normal:.3s cubic-bezier(.4, 0, .2, 1);--transition-slow:.5s cubic-bezier(.4, 0, .2, 1);--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--shadow-glow:0 0 20px #38bdf84d}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-base);color:var(--c-text);background-color:var(--c-bg-light);line-height:1.6;overflow-x:hidden}a{color:inherit;transition:color var(--transition-fast);text-decoration:none}ul{list-style:none}img{max-width:100%;height:auto;display:block}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 1.5rem}.section{padding:6rem 0}.bg-light{background-color:var(--c-bg)}.hidden{display:none!important}.header{z-index:1000;-webkit-backdrop-filter:blur(12px);width:100%;transition:all var(--transition-normal);background:#ffffffd9;border-bottom:1px solid #0000000d;position:fixed;top:0;left:0}.header.scrolled{box-shadow:var(--shadow-sm);padding:.5rem 0}.header-container{height:80px;transition:height var(--transition-normal);justify-content:space-between;align-items:center;display:flex}.header.scrolled .header-container{height:60px}.logo{color:var(--c-primary);letter-spacing:.05em;align-items:center;gap:.5rem;font-size:1.25rem;font-weight:700;display:flex}.logo-icon{object-fit:contain;width:32px;height:32px}.nav-list{align-items:center;gap:2rem;display:flex}.nav-link{color:var(--c-primary-light);font-size:.95rem;font-weight:500;position:relative}.nav-link:not(.btn-primary-sm):after{content:"";background-color:var(--c-accent);width:0;height:2px;transition:width var(--transition-normal);position:absolute;bottom:-4px;left:0}.nav-link:not(.btn-primary-sm):hover:after{width:100%}.menu-toggle{cursor:pointer;background:0 0;border:none;padding:.5rem;display:none}.menu-toggle span{background-color:var(--c-primary);width:24px;height:2px;transition:var(--transition-fast);margin-bottom:5px;display:block}.btn{cursor:pointer;transition:all var(--transition-normal);border:2px solid #0000;border-radius:9999px;justify-content:center;align-items:center;padding:.875rem 2rem;font-size:1rem;font-weight:600;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--c-primary), var(--c-primary-light));color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{box-shadow:var(--shadow-lg);color:#fff;transform:translateY(-2px)}.btn-primary-sm{background-color:var(--c-primary);transition:all var(--transition-fast);border-radius:9999px;padding:.5rem 1.25rem;font-size:.875rem;color:#fff!important}.btn-primary-sm:hover{background-color:var(--c-accent);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.btn-outline{border-color:var(--c-primary);color:var(--c-primary);background:0 0}.btn-outline:hover{background-color:var(--c-primary);color:#fff}.btn-block{width:100%}.hero{background-color:var(--c-bg-light);background-image:url(/hero_bg.png);background-position:50%;background-size:cover;align-items:center;min-height:90vh;padding:12rem 0 8rem;display:flex;position:relative;overflow:hidden}.hero:before{content:"";z-index:0;background:#fff6;width:100%;height:100%;position:absolute;top:0;left:0}.hero .container{z-index:1;position:relative}.hero-bg{display:none}.hero-content{z-index:1;text-align:center;max-width:800px;position:relative}.hero-title{color:var(--c-primary);letter-spacing:-.02em;margin-bottom:1.5rem;font-size:3rem;font-weight:700;line-height:1.2}.hero-subtitle{color:var(--c-primary);margin-bottom:1rem;font-size:1.5rem;font-weight:500;display:block}.hero-desc{color:var(--c-text);margin-bottom:2.5rem;font-size:1.125rem;font-weight:500}.hero-actions{justify-content:center;gap:1rem;display:flex}.section-header{text-align:center;margin-bottom:4rem}.section-header.align-left{text-align:left}.section-title{color:var(--c-accent);letter-spacing:.1em;margin-bottom:.5rem;font-size:1rem;font-weight:700}.section-subtitle{color:var(--c-primary);font-size:2rem;font-weight:700}.services-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;display:grid}.service-card{box-shadow:var(--shadow-sm);transition:all var(--transition-normal);background:#fff;border:1px solid #00000008;border-radius:16px;padding:3rem 2rem;position:relative;overflow:hidden}.service-card:before{content:"";background:linear-gradient(90deg, var(--c-accent), var(--c-primary));opacity:0;width:100%;height:4px;transition:opacity var(--transition-normal);position:absolute;top:0;left:0}.service-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-8px)}.service-card:hover:before{opacity:1}.service-icon{background-color:var(--c-bg);width:64px;height:64px;color:var(--c-accent);border-radius:12px;justify-content:center;align-items:center;margin-bottom:1.5rem;display:flex}.icon-construction:after{content:"🏗️";font-size:32px}.icon-waste:after{content:"♻️";font-size:32px}.icon-company:after{content:"🏢";font-size:32px}.service-title{color:var(--c-primary);margin-bottom:1rem;font-size:1.25rem;font-weight:600}.service-desc{color:var(--c-text-light);font-size:.95rem}.about-grid{grid-template-columns:1fr 1fr;align-items:center;gap:4rem;display:grid}.info-list{flex-direction:column;gap:1.5rem;display:flex}.info-item{border-bottom:1px solid #0000000d;padding-bottom:1.5rem;display:flex}.info-item dt{width:120px;color:var(--c-primary);font-weight:600}.info-item dd{color:var(--c-text-light);flex:1}.about-image .image-placeholder{width:100%;height:400px;box-shadow:var(--shadow-md);background:linear-gradient(135deg,#e2e8f0,#f1f5f9);border-radius:16px}.map-container{box-shadow:var(--shadow-md);background:#fff;border-radius:16px;padding:.5rem;overflow:hidden}.map-container iframe{border-radius:12px}.contact-wrapper{box-shadow:var(--shadow-lg);background:#fff;border-radius:24px;grid-template-columns:1fr 1fr;display:grid;overflow:hidden}.contact-info{background:linear-gradient(135deg, var(--c-primary), var(--c-primary-light));color:#fff;flex-direction:column;justify-content:center;padding:4rem 3rem;display:flex}.contact-info h3{margin-bottom:1.5rem;font-size:2rem;line-height:1.3}.contact-info p{color:#fffc;font-size:1.1rem}.line-contact{border-top:1px solid #ffffff1a;margin-top:2rem;padding-top:2rem}.line-contact-text{color:var(--c-accent);text-align:center;margin-bottom:.75rem;font-size:.9rem;font-weight:700}.btn-line{color:#fff;background-color:#06c755;border-radius:8px;justify-content:center;align-items:center;gap:.5rem;width:100%;padding:1rem;font-weight:700;text-decoration:none;transition:all .2s;display:flex}.btn-line:hover{background-color:#05b34c;transform:translateY(-2px);box-shadow:0 4px 12px #06c7554d}.line-icon{width:24px;height:24px}.contact-form-container{padding:4rem 3rem}.form-group{margin-bottom:1.5rem}.form-label{color:var(--c-primary);margin-bottom:.5rem;font-size:.9rem;font-weight:600;display:block}.required{color:#fff;vertical-align:middle;background-color:#ef4444;border-radius:4px;margin-left:.5rem;padding:.2rem .5rem;font-size:.7rem}.form-input,.form-textarea{width:100%;transition:all var(--transition-fast);background-color:var(--c-bg);border:1px solid #cbd5e1;border-radius:8px;padding:.75rem 1rem;font-family:inherit;font-size:1rem}.form-input:focus,.form-textarea:focus{border-color:var(--c-accent);background-color:#fff;outline:none;box-shadow:0 0 0 3px #38bdf833}.form-textarea{resize:vertical;min-height:120px}.form-status{text-align:center;border-radius:8px;margin-top:1.5rem;padding:1rem;font-weight:500}.form-status.success{color:#166534;background-color:#dcfce7}.form-status.error{color:#991b1b;background-color:#fee2e2}.btn-loader{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:1s ease-in-out infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.footer{background-color:var(--c-primary);color:#fff;padding:4rem 0 2rem}.footer-content{border-bottom:1px solid #ffffff1a;justify-content:space-between;align-items:center;margin-bottom:3rem;padding-bottom:2rem;display:flex}.footer-logo{font-size:1.25rem;font-weight:700}.footer-links{gap:2rem;display:flex}.footer-links a{color:#ffffffb3}.footer-links a:hover{color:#fff}.footer-bottom{text-align:center;color:#ffffff80;font-size:.875rem}@media (width<=992px){.hero-title{font-size:2.5rem}.about-grid{grid-template-columns:1fr}.about-image .image-placeholder{height:300px}.contact-wrapper{grid-template-columns:1fr}.contact-info,.contact-form-container{padding:3rem 2rem}}@media (width<=768px){.nav-list{width:100%;box-shadow:var(--shadow-md);transition:transform var(--transition-normal);z-index:-1;background:#fff;flex-direction:column;padding:2rem;position:absolute;top:80px;left:0;transform:translateY(-150%)}.nav-list.active{transform:translateY(0)}.menu-toggle{display:block}.hero{min-height:80vh;padding:8rem 0 6rem}.hero-title{font-size:2rem}.hero-subtitle{font-size:1.25rem}.hero-actions{flex-direction:column}.footer-content{text-align:center;flex-direction:column;gap:2rem}}