:root{--primary-color:#ff4500;--accent-color:#ff6600;--secondary-color:#111111;--text-color:#ffffff;--light-text:#cccccc;--bg-color:#000000;--light-bg:rgba(0, 0, 0, 0.85);--section-bg:rgba(0, 0, 0, 0.75);--border-color:#444444;--shadow:0 8px 32px rgba(0, 0, 0, 0.9);--transition:all 0.4s cubic-bezier(0.4, 0, 0.2, 1);--heavy-shadow:0 20px 60px rgba(0, 0, 0, 0.95);--bp-mobile:768px;--bp-small:480px;--fs-hero-title:clamp(2rem, 5vw, 4rem);--fs-hero-subtitle:clamp(1.1rem, 3vw, 1.5rem);--fs-section-title:3rem;--spacing-section:100px;--spacing-container:20px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:'Noto Sans JP',sans-serif;font-size:16px;line-height:1.6;color:var(--text-color);background-color:var(--bg-color);overflow-x:hidden}.skip-link{position:absolute;top:-100px;left:0;background-color:var(--primary-color);color:var(--text-color);padding:8px 16px;text-decoration:none;font-weight:700;z-index:10000;border-radius:0 0 4px 0;transition:top .3s ease;overflow:hidden;clip:rect(0 0 0 0);width:1px;height:1px}.skip-link:focus{top:0;left:0;width:auto;height:auto;clip:auto;outline:3px solid var(--accent-color);outline-offset:2px}.parallax-container{position:fixed;top:0;left:0;width:100%;height:100vh;z-index:-1;overflow:hidden}.parallax-container img{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);min-width:100%;min-height:100%;width:auto;height:auto;object-fit:cover;filter:brightness(.7) contrast(1.1) saturate(1)}@media (max-width:768px){.company-hero,.contact-hero,.portfolio-hero,.recruit-hero{background-attachment:scroll!important;background-size:cover!important;background-position:center center!important}}@media (max-width:768px){.parallax-container img{filter:brightness(.5) contrast(1.1) saturate(1)}}.container{max-width:1400px;margin:0 auto;padding:0 var(--spacing-container)}.hero .container{max-width:1400px;width:100%;padding:0 var(--spacing-container);box-sizing:border-box}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3}:focus{outline:2px solid var(--primary-color);outline-offset:2px}:focus:not(:focus-visible){outline:0}:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}a{text-decoration:none;color:inherit;transition:var(--transition)}img{max-width:100%;height:auto;display:block}header{background:0 0;backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:none;position:fixed;top:0;left:0;right:0;z-index:1000;transition:background .3s ease,backdrop-filter .3s ease,box-shadow .3s ease;border-bottom:none}header.scrolled{background:rgba(0,0,0,.95);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 2px 10px rgba(0,0,0,.5)}header.scrolling{background:rgba(0,0,0,var(--scroll-opacity));backdrop-filter:blur(calc(10px * var(--scroll-opacity)));-webkit-backdrop-filter:blur(calc(10px * var(--scroll-opacity)))}.header-content{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 0}.logo .site-name,.logo h1{font-size:1.8rem;color:#fff;font-weight:900;text-transform:uppercase;letter-spacing:2px;text-shadow:2px 2px 4px rgba(0,0,0,.8)}@media (max-width:768px){.logo .site-name,.logo h1{font-size:1.2rem;letter-spacing:.5px;word-break:keep-all;line-height:1.2}}.main-nav ul{display:flex;list-style:none;gap:2rem}.main-nav a{color:#fff;font-weight:700;padding:.5rem 0;position:relative;text-transform:uppercase;letter-spacing:1px;font-size:.9rem;text-shadow:1px 1px 2px rgba(0,0,0,.5)}.main-nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background-color:var(--accent-color);transition:var(--transition)}.main-nav a:hover::after{width:100%}.main-nav a.active{color:var(--primary-color);font-weight:700}.main-nav a.active::after{width:100%;background-color:var(--primary-color)}.mobile-menu-toggle{display:none;background:0 0;border:none;cursor:pointer;padding:.5rem;position:relative;z-index:1002}.mobile-menu-toggle span{display:block!important;width:22px!important;height:2px!important;background-color:#fff!important;margin:0!important;transition:all .3s ease;opacity:1!important;position:relative;flex-shrink:0!important;transform-origin:center}main{padding-top:0;position:relative;z-index:1}@media (min-width:769px){.company-hero,.contact-hero,.portfolio-hero,.recruit-hero{margin-top:100px;padding-top:3rem}.hero:not(.portfolio-hero):not(.company-hero):not(.recruit-hero):not(.contact-hero){margin-top:0}.company-hero .hero-content,.contact-hero .hero-content,.portfolio-hero .hero-content,.recruit-hero .hero-content{text-align:center;max-width:800px;margin:0 auto;padding:0 2rem}.company-hero .hero-title,.contact-hero .hero-title,.portfolio-hero .hero-title,.recruit-hero .hero-title{font-size:3.5rem;margin-bottom:1.5rem;color:var(--primary-color);text-shadow:3px 3px 6px rgba(0,0,0,.9)}.company-hero .hero-subtitle,.contact-hero .hero-subtitle,.portfolio-hero .hero-subtitle,.recruit-hero .hero-subtitle{font-size:1.5rem;margin-bottom:1rem;color:var(--text-color);text-shadow:2px 2px 4px rgba(0,0,0,.8)}.company-hero .hero-description,.contact-hero .hero-description,.portfolio-hero .hero-description,.recruit-hero .hero-description{font-size:1.2rem;line-height:1.6;color:var(--light-text);text-shadow:1px 1px 2px rgba(0,0,0,.7);text-align:center;max-width:600px;margin:0 auto}}.hero{position:relative;height:100vh;min-height:600px;display:flex;align-items:center;overflow:hidden;background:0 0;width:100%;padding:0;box-sizing:border-box}.hero-content{background:0 0;padding:0;border-radius:0;max-width:1000px;width:100%;margin:0;border-left:none;backdrop-filter:none;-webkit-backdrop-filter:none;box-sizing:border-box}.hero-background{display:none}.scroll-indicator{display:none}.hero-content{color:#fff;text-align:left}.hero-title{font-size:var(--fs-hero-title);margin-bottom:1rem;text-shadow:3px 3px 6px rgba(0,0,0,.9),0 0 20px rgba(0,0,0,.8);font-weight:700;color:#fff;line-height:1.2;word-break:keep-all;overflow-wrap:break-word}.hero-subtitle{font-size:var(--fs-hero-subtitle);margin-bottom:1.5rem;font-weight:500;color:#fff;text-shadow:2px 2px 4px rgba(0,0,0,.9),0 0 15px rgba(0,0,0,.7);line-height:1.4}.hero-description{font-size:1.1rem;margin-bottom:2rem;max-width:600px;color:#fff;text-shadow:2px 2px 4px rgba(0,0,0,.9),0 0 10px rgba(0,0,0,.6);font-weight:500}.hero-description strong{color:var(--accent-color);font-size:1.2rem}.hero-buttons{display:flex;gap:1rem;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:2.5rem}.cta-button{display:inline-flex;align-items:center;justify-content:center;flex-direction:column;gap:.25rem;background:linear-gradient(45deg,var(--primary-color),var(--accent-color));color:#fff;padding:1.2rem 2.5rem;border:3px solid transparent;font-weight:900;transition:var(--transition);text-transform:uppercase;letter-spacing:1px;position:relative;overflow:hidden;clip-path:polygon(5% 0%,100% 0%,95% 100%,0% 100%);text-align:center;line-height:1.2;min-width:150px;min-height:60px}.cta-button:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 10px 30px rgba(255,69,0,.5);border-color:var(--primary-color)}.cta-secondary{background:0 0;border:3px solid var(--accent-color);color:var(--accent-color)}.cta-secondary:hover{background:linear-gradient(45deg,var(--primary-color),var(--accent-color));color:#fff;border-color:transparent}section{padding:var(--spacing-section) 0;position:relative;background-color:rgba(0,0,0,.85);backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);box-shadow:inset 0 0 50px rgba(0,0,0,.3)}.hero{backdrop-filter:none!important;-webkit-backdrop-filter:none!important;box-shadow:none!important}section:not(:first-of-type){border-top:3px solid var(--primary-color)}section:last-of-type{border-bottom:3px solid var(--primary-color)}.section-title{font-size:var(--fs-section-title);text-align:center;margin-bottom:4rem;color:var(--primary-color);font-weight:900;text-transform:uppercase;letter-spacing:4px;text-shadow:3px 3px 6px rgba(0,0,0,.8);position:relative}.section-title::after{content:'';position:absolute;bottom:-15px;left:50%;transform:translateX(-50%);width:100px;height:5px;background:linear-gradient(90deg,transparent,var(--primary-color),transparent)}.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2rem}.service-card,.strength-card{background-color:rgba(0,0,0,.8);border:2px solid var(--border-color);overflow:hidden;box-shadow:var(--heavy-shadow);transition:var(--transition);position:relative}.service-card{clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%)}.service-card:hover,.strength-card:hover{transform:translateY(-10px) scale(1.02);box-shadow:0 15px 40px rgba(255,69,0,.3);border-color:var(--primary-color)}.service-card::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,69,0,.2),transparent);transition:left .6s}.service-card:hover::before{left:100%}.service-image{height:250px;overflow:hidden}.service-image img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}.service-card:hover .service-image img{transform:scale(1.05)}.service-card h3{font-size:1.8rem;color:var(--primary-color);margin:1.5rem 1.5rem 1rem;font-weight:900;text-transform:uppercase;letter-spacing:2px}.service-card p{margin:0 1.5rem 1rem;color:var(--light-text)}.service-card ul{list-style:none;margin:0 1.5rem 1.5rem}.service-card li{padding:.5rem 0;padding-left:1.5rem;position:relative}.service-card li::before{content:'✓';position:absolute;left:0;color:var(--accent-color);font-weight:700}.company-content{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;max-width:100%;overflow:hidden}.company-info table{width:100%;border-collapse:collapse}.company-info td,.company-info th{padding:1rem;text-align:left;border-bottom:1px solid var(--border-color)}.company-info th{background-color:rgba(255,69,0,.1);color:var(--primary-color);font-weight:700;width:30%;text-transform:uppercase;letter-spacing:1px}.company-image{max-width:100%;overflow:hidden}.company-image img{border-radius:10px;box-shadow:var(--shadow);max-width:100%;height:auto}.contact-content{display:grid;grid-template-columns:1fr 1fr;gap:3rem;margin-bottom:4rem}.contact-info h3{font-size:1.8rem;color:var(--primary-color);margin-bottom:1rem}.contact-info>p{margin-bottom:2rem;color:var(--light-text)}.contact-details{display:grid;gap:1.5rem}.contact-item h4{color:var(--primary-color);margin-bottom:.5rem}.contact-item a{color:var(--accent-color);font-size:1.2rem;font-weight:500}.contact-item a:hover{text-decoration:underline}.contact-map iframe{border:3px solid var(--border-color);box-shadow:var(--heavy-shadow);filter:grayscale(80%) contrast(1.2);transition:var(--transition)}.contact-map iframe:hover{filter:grayscale(40%) contrast(1.1);border-color:var(--primary-color)}footer{background-color:rgba(0,0,0,.95);color:#fff;padding:3rem 0 1rem;border-top:3px solid var(--primary-color);position:relative;z-index:10}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:2rem}.footer-company .footer-title,.footer-company h3{margin-bottom:.5rem;font-size:1.25rem;font-weight:700}.footer-company p{color:rgba(255,255,255,.8)}.footer-links ul{list-style:none}.footer-links li{margin-bottom:.5rem}.footer-links a{color:rgba(255,255,255,.8)}.footer-links a:hover{color:#fff}.footer-contact p{margin-bottom:.5rem;color:rgba(255,255,255,.8)}.footer-contact a{color:#fff}.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid 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var(--primary-color)}.stat-item{text-align:center}.stat-number{font-size:3rem;font-weight:900;color:var(--primary-color);margin-bottom:.5rem}.stat-number span{font-size:1.5rem;color:var(--text-color)}.stat-label{font-size:1.1rem;text-transform:uppercase;letter-spacing:1px}.recruit-message{text-align:center;margin-bottom:3rem;padding:2rem;background-color:rgba(255,69,0,.1);border-left:5px solid var(--primary-color)}.recruit-message h3{font-size:2rem;color:var(--primary-color);margin-bottom:1rem}.recruit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-bottom:3rem}.recruit-card{background-color:rgba(0,0,0,.8);border:2px solid var(--border-color);padding:2rem;transition:var(--transition)}.recruit-card:hover{border-color:var(--primary-color);box-shadow:0 5px 20px rgba(255,69,0,.3)}.recruit-card h3{font-size:1.8rem;color:var(--primary-color);margin-bottom:1.5rem;text-transform:uppercase;letter-spacing:2px}.recruit-card dl{margin:0}.recruit-card dt{font-weight:700;color:var(--accent-color);margin-top:1rem;text-transform:uppercase;letter-spacing:1px}.recruit-card dd{margin:.5rem 0 0 0;color:var(--text-color)}.recruit-cta{text-align:center;padding:2rem;background-color:rgba(255,69,0,.05);border:2px solid var(--primary-color)}.recruit-cta p{font-size:1.2rem;margin-bottom:2rem}@media (max-width:768px){.main-nav{display:none;position:absolute;top:100%;left:0;right:0;background-color:rgba(0,0,0,.98);box-shadow:0 8px 32px rgba(0,0,0,.9);z-index:999;border-top:2px solid var(--primary-color)}.main-nav.active{display:block;animation:slideDown .3s ease-out}.main-nav ul{flex-direction:column;padding:1rem;gap:0}.main-nav li{border-bottom:1px solid var(--border-color)}.main-nav a{display:block;padding:1rem;color:#fff!important;text-shadow:none!important;font-size:1.1rem;font-weight:600;transition:background-color .3s ease}.main-nav 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.theme-description{font-size:.8rem}}.theme-toggle-btn{position:fixed;bottom:80px;right:30px;min-width:180px;height:50px;background:linear-gradient(45deg,var(--primary-color),var(--accent-color));border:none;border-radius:25px;color:#fff;cursor:pointer;box-shadow:0 4px 20px rgba(0,0,0,.3);display:flex;align-items:center;justify-content:center;gap:8px;padding:0 20px;transition:var(--transition);z-index:9999;font-weight:700;font-size:.9rem;letter-spacing:.5px}.theme-toggle-btn:hover{transform:scale(1.05);box-shadow:0 10px 30px rgba(255,69,0,.5)}.theme-toggle-btn svg{width:20px;height:20px}.theme-toggle-btn span{display:inline-block}.theme-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:10000;display:none;opacity:0;transition:opacity .3s 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ul{margin-top:.8rem;padding-left:1.5rem;list-style:none}.project-specification ul li{margin-bottom:.5rem;font-size:.95rem;color:rgba(255,255,255,.9);position:relative;padding-left:1.2rem}.project-specification ul li::before{content:'▸';position:absolute;left:0;color:var(--primary-color);font-weight:700}.coating-spec-table{width:100%;margin-top:1rem;border-collapse:collapse;background:rgba(0,0,0,.3);border-radius:8px;overflow:hidden}.coating-spec-table td,.coating-spec-table th{padding:.8rem 1rem;text-align:left;border-bottom:1px solid rgba(255,69,0,.2)}.coating-spec-table th{background:rgba(255,69,0,.2);color:var(--primary-color);font-weight:700;font-size:.9rem}.coating-spec-table tr:hover{background:rgba(255,69,0,.05)}.coating-spec-table td:first-child{width:60px;text-align:center;font-weight:700;color:var(--primary-color)}.coating-spec-table td:last-child{width:100px;text-align:center}.coating-spec-table tfoot td{border-top:2px solid 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.hero-background{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.3);z-index:-1}.service-hero .hero-content{max-width:1000px;padding:0 2rem}.service-hero .hero-title{font-size:3.5rem;margin-bottom:1.5rem;color:var(--primary-color);text-shadow:3px 3px 6px rgba(0,0,0,.9);font-weight:900}.service-hero .hero-subtitle{font-size:1.5rem;margin-bottom:1rem;color:var(--text-color);text-shadow:2px 2px 4px rgba(0,0,0,.8)}.service-hero .hero-description{font-size:1.2rem;line-height:1.8;color:var(--light-text);text-shadow:1px 1px 2px rgba(0,0,0,.7);max-width:800px;margin:0 auto 2rem}.service-hero .hero-buttons{display:flex;gap:1.5rem;justify-content:center;flex-wrap:wrap}.service-hero .phone-number{display:block;font-size:.9rem;margin-top:.3rem}.importance-section{background:rgba(0,0,0,.9);padding:5rem 0}.importance-content{max-width:1200px;margin:0 auto}.importance-text h3{color:var(--primary-color);font-size:2rem;margin-bottom:1.5rem;font-weight:700}.challenge-list{background:rgba(255,69,0,.05);border-left:4px solid var(--primary-color);padding:2rem;margin:2rem 0;border-radius:8px}.challenge-list h4{color:var(--accent-color);font-size:1.5rem;margin-bottom:1rem}.challenge-list ul{list-style:none;padding:0}.challenge-list li{padding:.8rem 0;padding-left:2rem;position:relative;line-height:1.6}.challenge-list li::before{content:'▶';position:absolute;left:0;color:var(--primary-color)}.area-specific{margin-top:3rem}.area-specific h4{color:var(--accent-color);font-size:1.8rem;margin-bottom:2rem;text-align:center}.area-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.area-item{background:rgba(255,255,255,.03);border:1px solid rgba(255,69,0,.3);padding:2rem;border-radius:8px;transition:var(--transition)}.area-item:hover{transform:translateY(-5px);box-shadow:0 10px 30px 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