:root{--bg-white:#fff;--bg-light:#f8fafc;--text-dark:#0f172a;--text-body:#334155;--text-muted:#64748b;--border-color:#e2e8f0;--brand-color:#0284c7;--brand-hover:#0369a1}.container{max-width:1200px;margin:0 auto;padding:0 24px}.top-bar{color:#94a3b8;background-color:#0f172a;padding:8px 0;font-size:13px}.top-container{justify-content:space-between;align-items:center;display:flex}.top-link{color:#fff;font-weight:600}.header{border-bottom:1px solid var(--border-color);z-index:1000;background-color:#fff;height:80px;position:sticky;top:0}.nav-container{justify-content:space-between;align-items:center;height:100%;font-size:13px;display:flex}.logo{color:var(--text-dark);letter-spacing:-.3px;white-space:nowrap;font-size:22px;font-weight:900}.logo span{color:var(--brand-color);font-weight:400}.gnb a{color:var(--text-dark);white-space:nowrap;margin:0 10px;font-size:17px;font-weight:600;transition:color .2s}.gnb a:hover{color:var(--brand-color)}.header-util{align-items:center;gap:16px;display:flex}.lang-btn{color:var(--text-muted);font-size:13px;font-weight:700}.btn{cursor:pointer;border-radius:4px;padding:10px 20px;font-size:14px;font-weight:600;transition:all .2s;display:inline-block}.btn-outline-sm{border:1px solid var(--border-color);padding:6px 14px;font-size:13px}.btn-outline-sm:hover{background-color:var(--bg-light)}.btn-outline{border:1px solid var(--text-dark);color:var(--text-dark)}.btn-outline:hover{background-color:var(--text-dark);color:#fff}.main-visual{background-color:var(--bg-light);border-bottom:1px solid var(--border-color);padding:120px 0}.sub-title{color:var(--brand-color);letter-spacing:2px;margin-bottom:12px;font-size:13px;font-weight:800;display:block}.visual-text h1{color:var(--text-dark);letter-spacing:-1px;margin-bottom:20px;font-size:48px;font-weight:800;line-height:1.25}.visual-text p{color:var(--text-muted);max-width:600px;font-size:18px}.stats-section{border-bottom:1px solid var(--border-color);padding:40px 0}.stats-grid{text-align:center;grid-template-columns:repeat(4,1fr);gap:20px;display:grid}.stat-num{color:var(--brand-color);font-size:32px;font-weight:800;display:block}.stat-label{color:var(--text-muted);font-size:14px}.business-section{padding:100px 0}.section-title{margin-bottom:48px}.tag{color:var(--brand-color);letter-spacing:1.5px;margin-bottom:8px;font-size:12px;font-weight:800;display:block}.section-title h2{color:var(--text-dark);font-size:32px;font-weight:800}.business-grid{grid-template-columns:repeat(3,1fr);gap:32px;display:grid}.biz-card{border:1px solid var(--border-color);background-color:#fff;border-radius:8px;padding:40px 32px;transition:all .3s}.biz-card:hover{border-color:var(--brand-color);box-shadow:0 12px 24px #0000000d}.biz-num{color:var(--brand-color);margin-bottom:20px;font-size:16px;font-weight:800}.biz-card h3{color:var(--text-dark);margin-bottom:12px;font-size:20px;font-weight:700}.biz-card p{color:var(--text-muted);margin-bottom:32px;font-size:15px}.more-link{color:var(--text-dark);font-size:14px;font-weight:700}.more-link:hover span{margin-left:4px;transition:margin-left .2s}.news-section{background-color:var(--bg-light);border-top:1px solid var(--border-color);padding:90px 0}.news-container{grid-template-columns:1fr 2fr;align-items:center;gap:60px;display:grid}.news-left h2{color:var(--text-dark);margin-bottom:12px;font-size:32px}.news-left p{color:var(--text-muted);margin-bottom:28px}.news-list{list-style:none}.news-list li{border-bottom:1px solid var(--border-color);padding:20px 0}.news-list li:first-child{padding-top:0}.news-date{color:var(--text-muted);margin-bottom:4px;font-size:13px;display:block}.news-title{color:var(--text-dark);font-size:17px;font-weight:600}.news-list a:hover .news-title{color:var(--brand-color)}.footer{background-color:var(--text-dark);color:#94a3b8;padding:60px 0;font-size:14px}.footer-top{border-bottom:1px solid #334155;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:24px;display:flex}.footer-logo{color:#fff;font-size:18px;font-weight:800}.footer-nav a{color:#cbd5e1;margin-left:20px}.footer-nav a.privacy{color:#fff;font-weight:700}.footer-info p{margin-bottom:8px}.copyright{color:#64748b;font-size:13px}@media (max-width:768px){.gnb{display:none}.visual-text h1{font-size:32px}.stats-grid,.business-grid,.news-container{grid-template-columns:1fr}.footer-top{flex-direction:column;align-items:flex-start;gap:16px}.footer-nav a{margin-left:0;margin-right:16px}}.gnb a.active{color:var(--brand-color,#0284c7);font-weight:800}.sub-visual{padding:80px 0}.ceo-section{border-bottom:1px solid #e2e8f0;padding:90px 0}.ceo-container{background-color:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:48px}.ceo-text h3{color:#0f172a;margin-bottom:20px;font-size:22px;font-weight:800}.ceo-text p{color:#475569;margin-bottom:16px;font-size:16px;line-height:1.8}.ceo-signature{color:#0f172a;border-top:1px solid #cbd5e1;justify-content:space-between;align-items:center;margin-top:32px;padding-top:20px;display:flex}.values-section{border-bottom:1px solid #e2e8f0;padding:90px 0}.history-section{padding:90px 0}.history-list{flex-direction:column;gap:36px;display:flex}.history-item{border-bottom:1px solid #f1f5f9;grid-template-columns:200px 1fr;gap:24px;padding-bottom:36px;display:grid}.history-item:last-child{border-bottom:none}.history-year{color:#0284c7;font-size:20px;font-weight:800}.history-content p{color:#334155;margin-bottom:8px;font-size:16px}.history-content strong{color:#0f172a;margin-right:12px}@media (max-width:768px){.ceo-container{padding:24px}.history-item{grid-template-columns:1fr;gap:12px}}.portal-section{background-color:#f8fafc;padding:80px 0 100px}.system-grid{grid-template-columns:repeat(3,1fr);gap:28px;display:grid}.sys-card{background-color:#fff;border:1px solid #e2e8f0;border-radius:8px;flex-direction:column;padding:36px 28px 28px;transition:all .3s;display:flex;position:relative}.sys-card:hover{border-color:#0284c7;transform:translateY(-4px);box-shadow:0 12px 20px #0000000f}.highlight-card{background:linear-gradient(#fff 0%,#f0f9ff 100%);border:2px solid #0284c7}.sys-icon{margin-bottom:16px;font-size:32px}.sys-badge{color:#475569;background-color:#f1f5f9;border-radius:20px;padding:4px 10px;font-size:12px;font-weight:700;position:absolute;top:24px;right:24px}.sys-badge.req{color:#ef4444;background-color:#fef2f2}.sys-badge.safety{color:#10b981;background-color:#ecfdf5}.sys-card h3{color:#0f172a;margin-bottom:12px;font-size:20px;font-weight:800}.sys-card p{color:#64748b;flex-grow:1;margin-bottom:20px;font-size:14px;line-height:1.6}.sys-tags{gap:8px;margin-bottom:24px;list-style:none;display:flex}.sys-tags li{color:#0284c7;background-color:#f0f9ff;border-radius:4px;padding:2px 8px;font-size:12px;font-weight:600}.sys-btn{color:#0f172a;background-color:#f8fafc;border:1px solid #cbd5e1;border-radius:6px;justify-content:space-between;align-items:center;padding:12px 16px;font-size:14px;font-weight:700;text-decoration:none;transition:all .2s;display:flex}.sys-btn:hover,.sys-btn-primary{color:#fff;background-color:#0284c7;border-color:#0284c7}.sys-btn-primary:hover{background-color:#0369a1}.support-banner{color:#fff;background-color:#0f172a;padding:48px 0}.support-container{justify-content:space-between;align-items:center;display:flex}.support-text h3{margin-bottom:6px;font-size:20px;font-weight:800}.support-text p{color:#94a3b8;font-size:14px}.support-banner .btn-outline{color:#fff;border-color:#fff}.support-banner .btn-outline:hover{color:#0f172a;background-color:#fff}@media (max-width:992px){.system-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.system-grid{grid-template-columns:1fr}.support-container{flex-direction:column;align-items:flex-start;gap:20px}}.systems-hero{color:#fff;background:linear-gradient(#0f172abf,#0f172abf),url(/images/portal/bg_plant.jpg) 50%/cover no-repeat;padding:100px 0;position:relative}.systems-hero .sub-title{color:#38bdf8;font-weight:800}.systems-hero h1{color:#fff;text-shadow:0 2px 4px #0000004d;font-weight:800}.systems-hero p{color:#cbd5e1}