:root{--primary:#008200;--primary-dark:#006400;--primary-light:#4caf50;--primary-gloss:#0082001a;--secondary:#f4f4f4;--text-dark:#1a1a1a;--text-light:#fff;--bg-light:#fff;--bg-dark:#0a110a;--font-main:"Tahoma", sans-serif;--transition:all .3s cubic-bezier(.4, 0, .2, 1);--shadow:0 10px 30px #0000001a;--shadow-hover:0 15px 45px #00820033}.hidden{display:none!important}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);color:var(--text-dark);background-color:var(--bg-light);line-height:1.6;overflow-x:hidden}h1,h2,h3,h4{color:var(--primary-dark);font-weight:700}a{color:inherit;transition:var(--transition);text-decoration:none}ul{list-style:none}img{max-width:100%;display:block}.container{max-width:1200px;margin:0 auto;padding:0 20px}.section-padding{padding:80px 0}header{box-shadow:var(--shadow);z-index:1000;background:#fff;position:sticky;top:0}.navbar{justify-content:space-between;align-items:center;height:80px;display:flex}.logo{align-items:center;display:flex}.logo img{object-fit:contain;width:auto;height:60px}.nav-links{gap:25px;display:flex}.nav-links a{text-transform:uppercase;color:#555;font-size:14px;font-weight:600;position:relative}.nav-links a:hover,.nav-links a.active{color:var(--primary)}.nav-links a:after{content:"";background:var(--primary);width:0;height:2px;transition:var(--transition);position:absolute;bottom:-5px;left:0}.nav-links a:hover:after,.nav-links a.active:after{width:100%}.hero{color:#fff;text-align:center;background:linear-gradient(#00000080,#00000080),url(/hero.png) 50%/cover no-repeat;flex-direction:column;justify-content:center;align-items:center;height:360px;display:flex;position:relative}.hero-content{max-width:800px}.hero-tagline{background:var(--primary);cursor:pointer;border-radius:4px;margin-bottom:15px;padding:10px 20px;font-size:14px;animation:.8s ease-out slideDown;display:inline-block}.hero h1{color:#fff;text-shadow:2px 2px 10px #0000004d;margin-bottom:20px;font-size:42px}.service-preview{align-items:center;gap:50px;margin-bottom:100px;display:flex}.service-preview:nth-child(2n){flex-direction:row-reverse}.service-image{box-shadow:var(--shadow);border-radius:20px;flex:1;position:relative;overflow:hidden}.service-image img{object-fit:cover;width:100%;height:400px;transition:transform .5s}.service-image:hover img{transform:scale(1.05)}.service-info{flex:1}.service-info h2{margin-bottom:20px;font-size:32px;display:inline-block;position:relative}.service-info h2:after{content:"";background:var(--primary);width:60px;height:4px;position:absolute;bottom:-10px;left:0}.service-info p{color:#666;margin-bottom:25px;font-size:16px}.btn-primary{background:var(--primary);color:#fff;border:2px solid var(--primary);border-radius:5px;padding:12px 30px;font-weight:600;display:inline-block}.btn-primary:hover{color:var(--primary);box-shadow:var(--shadow-hover);background:#fff;transform:translateY(-3px)}.sticky-actions{z-index:1001;flex-direction:column;gap:15px;display:flex;position:fixed;bottom:30px;right:30px}.sticky-btn{background:var(--primary);color:#fff;width:50px;height:50px;box-shadow:var(--shadow);transition:var(--transition);border-radius:50%;justify-content:center;align-items:center;font-size:20px;display:flex}.sticky-btn:hover{background:var(--primary-dark);transform:scale(1.1)}.sticky-btn.zalo{background:#0068ff}footer{background:var(--bg-dark);color:#ccc;padding:60px 0 20px}.footer-grid{grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;margin-bottom:40px;display:grid}.footer-col h4{color:#fff;margin-bottom:25px;font-size:18px}.footer-col ul li{margin-bottom:12px}.footer-col ul li a:hover{color:var(--primary-light);padding-left:5px}.footer-bottom{text-align:center;border-top:1px solid #333;padding-top:20px;font-size:14px}@keyframes slideDown{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.menu-toggle{cursor:pointer;color:var(--primary);font-size:24px;display:none}@media (width<=1024px){.navbar{height:70px}.nav-links{background:#fff;flex-direction:column;gap:20px;width:100%;padding:30px;display:none;position:absolute;top:70px;left:0;box-shadow:0 10px 20px #0000001a}.nav-links.active{display:flex}.menu-toggle{display:block}.footer-grid{grid-template-columns:1fr 1fr}}@media (width<=768px){.hero h1{font-size:32px}.section-padding{padding:50px 0}.service-preview,.service-preview:nth-child(2n){text-align:center;flex-direction:column;gap:30px}.service-info h2:after{left:50%;transform:translate(-50%)}.footer-grid{text-align:center;grid-template-columns:1fr}.footer-col h4:after{left:50%;transform:translate(-50%)}.hero{height:320px}.milestone-line{left:20px}.milestone-item,.milestone-item:nth-child(2n){flex-direction:row;justify-content:flex-start}.milestone-content{width:calc(100% - 60px);margin-left:40px}.milestone-dot{position:absolute;left:12px}.news-grid,.contact-container,.service-grid{grid-template-columns:1fr!important}.sticky-actions{gap:10px;bottom:20px;right:20px}.sticky-btn{width:45px;height:45px}}@media (width<=480px){.hero h1{font-size:26px}.logo{font-size:20px}}.card-hover{transition:var(--transition)}.card-hover:hover{background:var(--primary-gloss);border-left:5px solid var(--primary)}