:root{--primary-color:#2563eb;--primary-dark:#1e40af;--secondary-color:#10b981;--dark-bg:#1f2937;--dark-text:#111827;--light-text:#6b7280;--border-color:#e5e7eb;--white:#ffffff;--shadow:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--shadow-lg:0 20px 25px -5px rgba(0,0,0,0.1),0 10px 10px -5px rgba(0,0,0,0.04)}*{margin:0;padding:0;-webkit-box-sizing:border-box;box-sizing:border-box}body{font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;line-height:1.6;color:var(--dark-text);overflow-x:hidden}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{position:fixed;top:0;left:0;right:0;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);-webkit-box-shadow:var(--shadow);box-shadow:var(--shadow);z-index:1000;-webkit-transition:all 0.3s ease;transition:all 0.3s ease}.nav-wrapper{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;-webkit-box-align:center;-ms-flex-align:center;align-items:center;padding:15px 0}.logo-img{height:69px;width:auto}.nav{display:-webkit-box;display:-ms-flexbox;display:flex;gap:30px;-webkit-box-align:center;-ms-flex-align:center;align-items:center}.nav-link{text-decoration:none;color:var(--dark-text);font-weight:500;-webkit-transition:color 0.3s ease;transition:color 0.3s ease;padding:8px 16px;border-radius:6px}.nav-link:hover{color:var(--primary-color)}.nav-link-cta{background:var(--primary-color);color:var(--white)}.nav-link-cta:hover{background:var(--primary-dark);color:var(--white)}.mobile-menu-toggle{display:none;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:5px}.mobile-menu-toggle span{width:25px;height:3px;background:var(--dark-text);border-radius:2px;-webkit-transition:all 0.3s ease;transition:all 0.3s ease}.hero{position:relative;min-height:100vh;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;background:linear-gradient(135deg,rgba(102,126,234,0.4) 0%,rgba(118,75,162,0.4) 100%),url("../images/photo/dji_drone.jpg");background-position:center;background-size:cover;background-repeat:no-repeat;color:var(--white);text-align:center;overflow:hidden}.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:transparent;z-index:1}.hero-content{position:relative;z-index:2;max-width:800px}.hero-title{font-size:8rem;font-weight:700;margin-top:-200px;margin-bottom:10px;padding:0;-webkit-animation:fadeInUp 1s ease;animation:fadeInUp 1s ease}.hero-title-sub{font-size:4rem;font-weight:700;margin-top:-80px;-webkit-animation:fadeInUp 2s ease;animation:fadeInUp 2s ease}.hero-subtitle{font-size:1.5rem;margin-bottom:40px;opacity:0.9;-webkit-animation:fadeInUp 5s ease 0.2s backwards;animation:fadeInUp 5s ease 0.2s backwards}.hero-cta{display:-webkit-box;display:-ms-flexbox;display:flex;gap:20px;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-animation:fadeInUp 1s ease 0.4s backwards;animation:fadeInUp 1s ease 0.4s backwards;margin-top:360px}.scroll-indicator{position:absolute;bottom:40px;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);z-index:2;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-webkit-box-align:center;-ms-flex-align:center;align-items:center;gap:10px;color:var(--white);opacity:0.8;-webkit-animation:bounce 2s infinite;animation:bounce 2s infinite}@-webkit-keyframes fadeInUp{0%{opacity:0;-webkit-transform:translateY(30px);transform:translateY(30px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;-webkit-transform:translateY(30px);transform:translateY(30px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}@-webkit-keyframes bounce{0%,to{-webkit-transform:translateX(-50%) translateY(0);transform:translateX(-50%) translateY(0)}50%{-webkit-transform:translateX(-50%) translateY(10px);transform:translateX(-50%) translateY(10px)}}@keyframes bounce{0%,to{-webkit-transform:translateX(-50%) translateY(0);transform:translateX(-50%) translateY(0)}50%{-webkit-transform:translateX(-50%) translateY(10px);transform:translateX(-50%) translateY(10px)}}.btn{display:inline-block;padding:12px 32px;border-radius:8px;text-decoration:none;font-weight:600;-webkit-transition:all 0.3s ease;transition:all 0.3s ease;border:2px solid transparent;cursor:pointer;font-size:1rem}.btn-primary{background:var(--primary-color);color:var(--white)}.btn-primary:hover{background:var(--primary-dark);-webkit-transform:translateY(-2px);transform:translateY(-2px);-webkit-box-shadow:var(--shadow-lg);box-shadow:var(--shadow-lg)}.btn-secondary{background:transparent;color:var(--white);border-color:var(--white)}.btn-secondary:hover{background:var(--white);color:var(--primary-color)}.btn-large{padding:16px 48px;font-size:1.1rem}section{padding:100px 0}.section-header{text-align:center;margin-bottom:60px}.section-title{font-size:2.5rem;font-weight:700;margin-bottom:15px;color:var(--dark-text)}.section-subtitle{font-size:1.2rem;color:var(--light-text)}.services{background:#f9fafb}.services-grid{display:-ms-grid;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}.service-card{background:var(--white);padding:40px;border-radius:12px;-webkit-box-shadow:var(--shadow);box-shadow:var(--shadow);-webkit-transition:all 0.3s ease;transition:all 0.3s ease;text-align:center}.service-card:hover{-webkit-transform:translateY(-5px);transform:translateY(-5px);-webkit-box-shadow:var(--shadow-lg);box-shadow:var(--shadow-lg)}.service-icon{width:80px;height:80px;margin:0 auto 20px;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;background:var(--primary-color);border-radius:50%;color:var(--white)}.service-icon .fa,.service-icon i{font-size:32px;line-height:1}.service-title{font-size:1.5rem;font-weight:600;margin-bottom:15px;color:var(--dark-text)}.service-description{color:var(--light-text);line-height:1.8}.portfolio-grid{display:-ms-grid;display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:40px}.portfolio-item{background:var(--white);border-radius:12px;overflow:hidden;-webkit-box-shadow:var(--shadow);box-shadow:var(--shadow);-webkit-transition:all 0.3s ease;transition:all 0.3s ease}.portfolio-item:hover{-webkit-transform:translateY(-5px);transform:translateY(-5px);-webkit-box-shadow:var(--shadow-lg);box-shadow:var(--shadow-lg)}.portfolio-video{position:relative;padding-top:56.25%;background:var(--dark-bg);cursor:pointer}.portfolio-thumbnail{position:absolute;top:0;left:0;width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.portfolio-placeholder{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%)}.play-overlay{position:absolute;top:50%;left:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);opacity:0.8;-webkit-transition:all 0.3s ease;transition:all 0.3s ease}.portfolio-video:hover .play-overlay{opacity:1;-webkit-transform:translate(-50%,-50%) scale(1.1);transform:translate(-50%,-50%) scale(1.1)}.portfolio-info{padding:25px}.portfolio-title{font-size:1.5rem;font-weight:600;margin-bottom:10px;color:var(--dark-text)}.portfolio-location{color:var(--primary-color);font-weight:500;margin-bottom:10px}.portfolio-description{color:var(--light-text);line-height:1.8}.no-content{grid-column:1/-1;text-align:center;padding:60px 20px;color:var(--light-text);font-size:1.2rem}.about{background:#f9fafb}.about-content{display:-ms-grid;display:grid;-ms-grid-columns:1fr 60px 1fr;grid-template-columns:1fr 1fr;gap:60px;-webkit-box-align:center;-ms-flex-align:center;align-items:center}.about-text h2{margin-bottom:20px}.about-text p{color:var(--light-text);margin-bottom:30px;line-height:1.8;font-size:1.1rem}.about-features{list-style:none}.about-features li{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;gap:15px;margin-bottom:20px;font-size:1.1rem}.about-features svg{color:var(--secondary-color);-ms-flex-negative:0;flex-shrink:0}.about-image img{width:100%;height:auto;border-radius:12px;-webkit-box-shadow:var(--shadow-lg);box-shadow:var(--shadow-lg)}.contact{background:var(--dark-bg);color:var(--white)}.contact .section-subtitle,.contact .section-title{color:var(--white)}.contact .section-subtitle{opacity:0.8}.contact-wrapper{max-width:800px;margin:0 auto}.contact-form{background:rgba(255,255,255,0.1);padding:40px;border-radius:12px;backdrop-filter:blur(10px)}.form-row{display:-ms-grid;display:grid;-ms-grid-columns:1fr 20px 1fr;grid-template-columns:1fr 1fr;gap:20px}.form-group{margin-bottom:25px}.form-group label{display:block;margin-bottom:8px;font-weight:500}.form-group input,.form-group textarea{width:100%;padding:12px 16px;border:2px solid rgba(255,255,255,0.2);background:rgba(255,255,255,0.1);border-radius:8px;color:var(--white);font-family:inherit;font-size:1rem;-webkit-transition:all 0.3s ease;transition:all 0.3s ease}.form-group input::-webkit-input-placeholder,.form-group textarea::-webkit-input-placeholder{color:rgba(255,255,255,0.5)}.form-group input::-moz-placeholder,.form-group textarea::-moz-placeholder{color:rgba(255,255,255,0.5)}.form-group input:-ms-input-placeholder,.form-group textarea:-ms-input-placeholder{color:rgba(255,255,255,0.5)}.form-group input::-ms-input-placeholder,.form-group textarea::-ms-input-placeholder{color:rgba(255,255,255,0.5)}.form-group input::placeholder,.form-group textarea::placeholder{color:rgba(255,255,255,0.5)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);background:rgba(255,255,255,0.15)}.form-group textarea{resize:vertical;min-height:120px}.contact-form .btn{width:100%;margin-top:10px}.form-alert{margin-bottom:20px;padding:16px 18px;border-radius:10px;font-weight:600}.form-alert-success{background:rgba(34,197,94,0.2);border:1px solid rgba(34,197,94,0.45);color:#d1fae5}.form-alert-error{background:rgba(239,68,68,0.2);border:1px solid rgba(239,68,68,0.45);color:#fee2e2}.hp-field{display:none}.footer{background:var(--dark-text);color:var(--white);padding:60px 0 20px}.footer-content{display:-ms-grid;display:grid;-ms-grid-columns:2fr 40px 1fr 40px 1fr;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}.footer-logo .logo-img{height:180px;margin-bottom:15px}.footer-logo p{opacity:0.8;margin-top:10px}.footer-contact h4,.footer-links h4{margin-bottom:20px;font-size:1.2rem}.footer-links a{display:block;color:var(--white);text-decoration:none;opacity:0.8;margin-bottom:10px;-webkit-transition:opacity 0.3s ease;transition:opacity 0.3s ease}.footer-links a:hover{opacity:1}.footer-contact p{opacity:0.8;margin-bottom:10px}.footer-bottom{padding-top:30px;border-top:1px solid rgba(255,255,255,0.1);text-align:center;opacity:0.7}.footer-bottom a{color:var(--white);text-decoration:none;margin-left:12px}.footer-bottom a:hover{text-decoration:underline}.link_light{color:var(--white);text-decoration:none;margin-left:12px}@media (max-width:968px){.nav{display:none}.mobile-menu-toggle{display:-webkit-box;display:-ms-flexbox;display:flex}.hero-title{font-size:3rem}.hero-subtitle{font-size:1.2rem}.about-content{-ms-grid-columns:1fr;grid-template-columns:1fr}.footer-content{-ms-grid-columns:1fr;grid-template-columns:1fr}.form-row{-ms-grid-columns:1fr;grid-template-columns:1fr}.portfolio-grid{-ms-grid-columns:1fr;grid-template-columns:1fr}}@media (max-width:640px){.hero{min-height:65vh;padding:120px 0 80px}.logo-img{height:42px;width:auto}.hero-content{padding:0 20px}.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.hero-cta{-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column}.section-title{font-size:2rem}.services-grid{-ms-grid-columns:1fr;grid-template-columns:1fr}}