*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;line-height:1.6;color:#2c3e50;background:#fff}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
img{max-width:100%;height:auto;display:block}

.header{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:15px 0;position:sticky;top:0;z-index:100;box-shadow:0 2px 10px rgba(0,0,0,.1)}
.header .container{display:flex;justify-content:space-between;align-items:center}
.logo-area img{height:40px;width:auto}
.nav{display:flex;gap:25px}
.nav a{color:#fff;text-decoration:none;font-weight:500;transition:opacity .3s}
.nav a:hover{opacity:.8}

.quick-nav{position:fixed;right:20px;top:50%;transform:translateY(-50%);background:#fff;border-radius:8px;box-shadow:0 4px 15px rgba(0,0,0,.1);padding:10px;z-index:90;display:flex;flex-direction:column;gap:10px}
.quick-nav a{padding:8px 12px;text-decoration:none;color:#667eea;font-size:14px;border-radius:4px;transition:all .3s}
.quick-nav a:hover{background:#667eea;color:#fff}

.hero{background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%);padding:80px 0;text-align:center}
.hero h1{font-size:42px;color:#2c3e50;margin-bottom:20px;font-weight:700}
.hero-desc{font-size:16px;color:#5a6c7d;max-width:900px;margin:0 auto 30px;line-height:1.8}
.hero-actions{display:flex;gap:20px;justify-content:center;margin-bottom:40px}
.btn-primary,.btn-secondary{padding:15px 40px;border:none;border-radius:50px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s}
.btn-primary{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;box-shadow:0 4px 15px rgba(102,126,234,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(102,126,234,.6)}
.btn-secondary{background:#fff;color:#667eea;border:2px solid #667eea}
.btn-secondary:hover{background:#667eea;color:#fff}
.hero-stats{display:flex;justify-content:center;gap:60px;margin-top:40px}
.stat-item{text-align:center}
.stat-item strong{display:block;font-size:32px;color:#667eea;margin-bottom:5px}
.stat-item span{font-size:14px;color:#5a6c7d}

.features{padding:80px 0;background:#fff}
.features h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:50px}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px}
.feature-card{background:#f8f9fa;padding:30px;border-radius:12px;text-align:center;transition:all .3s}
.feature-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,0,0,.1)}
.feature-icon{font-size:48px;margin-bottom:15px}
.feature-card h3{font-size:20px;color:#2c3e50;margin-bottom:10px}
.feature-card p{font-size:14px;color:#5a6c7d;line-height:1.6}

.detection-tech{padding:80px 0;background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%)}
.detection-tech h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:20px}
.section-intro{text-align:center;max-width:800px;margin:0 auto 50px;color:#5a6c7d;font-size:16px}
.tech-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px}
.step{background:#fff;padding:30px;border-radius:12px;position:relative}
.step-num{position:absolute;top:-15px;left:30px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px}
.step h3{font-size:20px;color:#2c3e50;margin:20px 0 10px}
.step p{font-size:14px;color:#5a6c7d;line-height:1.6}

.image-showcase{padding:80px 0;background:#fff}
.image-showcase h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:50px}
.showcase-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}
.showcase-item{text-align:center}
.showcase-item img{border-radius:12px;margin-bottom:15px;cursor:pointer;transition:transform .3s}
.showcase-item img:hover{transform:scale(1.05)}
.showcase-item h3{font-size:20px;color:#2c3e50;margin-bottom:10px}
.showcase-item p{font-size:14px;color:#5a6c7d}

.comparison{padding:80px 0;background:#f8f9fa}
.comparison h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:50px}
.table-wrapper{overflow-x:auto}
.comparison-table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px rgba(0,0,0,.1)}
.comparison-table th,.comparison-table td{padding:15px;text-align:left;border-bottom:1px solid #e9ecef}
.comparison-table th{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;font-weight:600}
.comparison-table tbody tr:hover{background:#f8f9fa}
.table-note{margin-top:20px;font-size:14px;color:#5a6c7d;line-height:1.6}

.detection-types{padding:80px 0;background:#fff}
.detection-types h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:50px}
.types-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px}
.type-card{background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%);padding:30px;border-radius:12px}
.type-card h3{font-size:20px;color:#2c3e50;margin-bottom:15px}
.type-card ul{list-style:none}
.type-card li{padding:8px 0;color:#5a6c7d;font-size:14px;position:relative;padding-left:20px}
.type-card li:before{content:"✓";position:absolute;left:0;color:#667eea;font-weight:700}

.guide{padding:80px 0;background:#f8f9fa}
.guide h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:50px}
.guide-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px}
.guide-step{background:#fff;padding:30px;border-radius:12px;position:relative;padding-top:50px}
.guide-num{position:absolute;top:20px;left:30px;background:#667eea;color:#fff;padding:5px 15px;border-radius:20px;font-size:14px;font-weight:600}
.guide-step h3{font-size:20px;color:#2c3e50;margin-bottom:10px}
.guide-step p{font-size:14px;color:#5a6c7d;line-height:1.6}

.faq{padding:80px 0;background:#fff}
.faq h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:50px}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#f8f9fa;margin-bottom:15px;border-radius:8px;overflow:hidden}
.faq-item summary{padding:20px;cursor:pointer;font-weight:600;color:#2c3e50;font-size:16px;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#e9ecef}
.faq-item p{padding:0 20px 20px;color:#5a6c7d;font-size:14px;line-height:1.6}

.publishers{padding:80px 0;background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%)}
.publishers h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:20px}
.publisher-logos{text-align:center;margin-top:40px}

.pricing{padding:80px 0;background:#fff}
.pricing h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:50px}
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px;max-width:1000px;margin:0 auto}
.price-card{background:#f8f9fa;padding:40px;border-radius:12px;text-align:center;transition:all .3s}
.price-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,0,0,.1)}
.price-card.featured{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff}
.price-card h3{font-size:24px;margin-bottom:20px}
.price-card.featured h3{color:#fff}
.price{font-size:48px;font-weight:700;margin-bottom:20px;color:#667eea}
.price-card.featured .price{color:#fff}
.price span{font-size:18px;font-weight:400}
.price-card ul{list-style:none;margin-bottom:30px}
.price-card li{padding:10px 0;font-size:14px;border-bottom:1px solid rgba(0,0,0,.05)}
.price-card.featured li{border-bottom:1px solid rgba(255,255,255,.2)}
.btn-outline{background:transparent;border:2px solid #667eea;color:#667eea;padding:12px 30px;border-radius:50px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s}
.btn-outline:hover{background:#667eea;color:#fff}
.price-card.featured .btn-outline{border-color:#fff;color:#fff}

.benefits{padding:80px 0;background:#f8f9fa}
.benefits h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:50px}
.benefits-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px}
.benefit-item{background:#fff;padding:30px;border-radius:12px}
.benefit-item h3{font-size:20px;color:#667eea;margin-bottom:10px}
.benefit-item p{font-size:14px;color:#5a6c7d;line-height:1.6}

.cta-section{padding:80px 0;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;text-align:center}
.cta-section h2{font-size:36px;margin-bottom:15px}
.cta-section p{font-size:18px;margin-bottom:40px;opacity:.9}
.cta-buttons{display:flex;gap:20px;justify-content:center;margin-bottom:50px}
.btn-large,.btn-large-outline{padding:18px 50px;border:none;border-radius:50px;font-size:18px;font-weight:600;cursor:pointer;transition:all .3s}
.btn-large{background:#fff;color:#667eea}
.btn-large:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(255,255,255,.3)}
.btn-large-outline{background:transparent;border:2px solid #fff;color:#fff}
.btn-large-outline:hover{background:#fff;color:#667eea}
.social-proof{display:flex;justify-content:center;gap:50px}
.proof-item{display:flex;flex-direction:column;align-items:center;gap:5px}
.proof-item .icon{font-size:32px}
.proof-item .count{font-size:24px;font-weight:700}
.proof-item .label{font-size:14px;opacity:.9}

.knowledge{padding:80px 0;background:#fff}
.knowledge h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:50px}
.knowledge-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px}
.knowledge-card{background:#f8f9fa;padding:30px;border-radius:12px}
.knowledge-card h3{font-size:18px;color:#2c3e50;margin-bottom:10px}
.knowledge-card p{font-size:14px;color:#5a6c7d;line-height:1.6}

.tools{padding:80px 0;background:#f8f9fa}
.tools h2{text-align:center;font-size:36px;color:#2c3e50;margin-bottom:50px}
.tools-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px}
.tool-item{background:#fff;padding:30px;border-radius:12px}
.tool-item h3{font-size:18px;color:#667eea;margin-bottom:10px}
.tool-item p{font-size:14px;color:#5a6c7d;line-height:1.6}

.footer{background:#2c3e50;color:#fff;padding:60px 0 20px}
.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px;margin-bottom:40px}
.footer-section h4{font-size:18px;margin-bottom:15px;color:#fff}
.footer-section p{font-size:14px;line-height:1.8;opacity:.8;margin-bottom:8px}
.footer-actions{display:flex;flex-wrap:wrap;gap:15px;justify-content:center;padding:30px 0;border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1)}
.footer-actions button{background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;padding:8px 20px;border-radius:20px;cursor:pointer;font-size:14px;transition:all .3s}
.footer-actions button:hover{background:rgba(255,255,255,.1);border-color:#fff}
.footer-bottom{text-align:center;margin-top:30px;font-size:14px;opacity:.7}
.footer-bottom p{margin:5px 0}

.back-to-top{position:fixed;bottom:30px;right:30px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;border:none;width:50px;height:50px;border-radius:50%;font-size:24px;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s;z-index:100}
.back-to-top.show{opacity:1;visibility:visible}
.back-to-top:hover{transform:translateY(-3px)}

.floating-tools{position:fixed;left:20px;bottom:30px;display:flex;flex-direction:column;gap:10px;z-index:90}
.tool-btn{background:#fff;border:2px solid #667eea;color:#667eea;padding:10px 15px;border-radius:25px;cursor:pointer;font-size:14px;transition:all .3s;box-shadow:0 2px 10px rgba(0,0,0,.1)}
.tool-btn:hover{background:#667eea;color:#fff;transform:translateX(5px)}

.image-modal{display:none;position:fixed;z-index:1000;left:0;top:0;width:100%;height:100%;background:rgba(0,0,0,.9)}
.image-modal.show{display:flex;align-items:center;justify-content:center}
.modal-content{max-width:90%;max-height:90%;object-fit:contain}
.modal-close{position:absolute;top:20px;right:40px;color:#fff;font-size:40px;font-weight:700;cursor:pointer}
.modal-close:hover{color:#ccc}

@media (max-width:768px){
.hero h1{font-size:28px}
.hero-desc{font-size:14px}
.hero-stats{flex-direction:column;gap:20px}
.nav{display:none}
.quick-nav{display:none}
.feature-grid,.tech-steps,.showcase-grid,.types-grid,.guide-content,.pricing-grid,.benefits-grid,.knowledge-grid,.tools-list{grid-template-columns:1fr}
.cta-buttons,.hero-actions{flex-direction:column}
.social-proof{flex-direction:column;gap:20px}
.floating-tools{left:10px;bottom:80px}
.back-to-top{right:10px;bottom:10px}
}