*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;line-height:1.6;color:#333;padding:0 10px;position:relative;overflow-x:hidden}
body::before{content:"📱";position:absolute;top:10%;left:-5%;font-size:8rem;opacity:0.08;animation:float-right 20s linear infinite;z-index:-1}
body::after{content:"💻";position:absolute;top:60%;right:-5%;font-size:7rem;opacity:0.12;animation:float-left 25s linear infinite;z-index:-1}
@keyframes float-right{0%{transform:translateX(-100px) translateY(0px) rotate(0deg)}50%{transform:translateX(50vw) translateY(-20px) rotate(180deg)}100%{transform:translateX(100vw) translateY(0px) rotate(360deg)}}
@keyframes float-left{0%{transform:translateX(100px) translateY(0px) rotate(0deg)}50%{transform:translateX(-50vw) translateY(20px) rotate(-180deg)}100%{transform:translateX(-100vw) translateY(0px) rotate(-360deg)}}
.site-header{background:#262626;color:white;position:sticky;top:0;z-index:1000;border-bottom:3px solid #666}
.header-container{display:flex;justify-content:space-between;align-items:center;padding:12px 20px 12px 20px;max-width:1200px;margin:0 auto}
.logo-wrapper{flex-shrink:0}
.brand-logo{width:120px;height:30px;object-fit:contain}
.main-navigation{display:none}
.nav-list{display:flex;list-style:none;gap:32px}
.nav-item{color:white}
.nav-link{color:white;text-decoration:none;font-weight:500;transition:color 0.3s}
.nav-link:hover{color:#ccc}
.nav-item.active{color:#ccc;font-weight:600}
.auth-buttons-desktop{display:none;gap:12px}
.signup-btn,.signin-btn{padding:10px 20px;text-decoration:none;border-radius:6px;font-weight:600;transition:all 0.3s}
.signup-btn{background:#ff6b35;color:white}
.signup-btn:hover{background:#e55a2e}
.signin-btn{background:transparent;color:white;border:2px solid #666}
.signin-btn:hover{background:#666;color:white}
.hamburger-toggle{background:transparent;border:none;cursor:pointer;padding:8px;display:flex;flex-direction:column;gap:4px}
.hamburger-line{width:24px;height:3px;background:white;border-radius:2px;transition:all 0.3s}
.mobile-menu{display:none;background:#262626;padding:20px 0;border-top:1px solid #666}
.mobile-nav-list{list-style:none;text-align:center}
.mobile-nav-item{padding:12px 0;border-bottom:1px solid #444}
.mobile-nav-link{color:white;text-decoration:none;font-size:18px;font-weight:500}
.mobile-auth-buttons{display:flex;gap:12px;justify-content:center;margin-top:20px}
.mobile-signup-btn,.mobile-signin-btn{padding:12px 24px;text-decoration:none;border-radius:6px;font-weight:600;flex:1;text-align:center;max-width:140px}
.mobile-signup-btn{background:#ff6b35;color:white}
.mobile-signin-btn{background:transparent;color:white;border:2px solid #666}
.main-content{max-width:1200px;margin:0 auto;padding:40px 0}
.app-hero{background:linear-gradient(135deg,#262626 0%,#404040 100%);color:white;padding:60px 20px;text-align:center;border-radius:12px;margin-bottom:40px}
.hero-content{max-width:800px;margin:0 auto}
.hero-title{font-size:2.8rem;font-weight:800;margin-bottom:24px;line-height:1.2}
.hero-description{font-size:1.3rem;margin-bottom:40px;opacity:0.9;line-height:1.6}
.download-buttons{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}
.download-btn{display:flex;align-items:center;gap:16px;background:rgba(255,255,255,0.1);border:2px solid rgba(255,255,255,0.3);padding:16px 24px;border-radius:12px;text-decoration:none;color:white;transition:all 0.3s;backdrop-filter:blur(10px)}
.download-btn:hover{background:rgba(255,255,255,0.2);border-color:rgba(255,255,255,0.5);transform:translateY(-2px)}
.download-icon{width:48px;height:48px;object-fit:contain}
.download-text{text-align:left}
.download-label{display:block;font-size:0.9rem;opacity:0.8}
.download-platform{display:block;font-size:1.2rem;font-weight:700}
.section-heading{font-size:2.2rem;color:#262626;margin-bottom:20px;font-weight:700}
.section-intro{font-size:1.1rem;color:#555;margin-bottom:40px;line-height:1.7}
.performance-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-bottom:40px}
.metric-card{background:white;border:2px solid #f0f0f0;border-radius:12px;padding:24px;text-align:center;transition:all 0.3s;box-shadow:0 2px 8px rgba(0,0,0,0.1)}
.metric-card:hover{border-color:#ff6b35;transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,0.15)}
.metric-icon{font-size:3rem;margin-bottom:16px}
.metric-title{font-size:1.3rem;color:#262626;margin-bottom:12px;font-weight:600}
.metric-description{color:#666;line-height:1.6}
.network-analysis{margin:40px 0}
.analysis-title{font-size:1.5rem;color:#262626;margin-bottom:20px;font-weight:600}
.network-performance-table{width:100%;border-collapse:collapse;background:white;border-radius:8px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.1)}
.network-performance-table th,.network-performance-table td{padding:12px 16px;text-align:left;border-bottom:1px solid #eee}
.network-performance-table th{background:#262626;color:white;font-weight:600}
.network-performance-table tbody tr:hover{background:#f8f9fa}
.regional-optimization{margin-top:40px}
.regional-title{font-size:1.5rem;color:#262626;margin-bottom:20px;font-weight:600}
.regional-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.regional-card{background:#f8f9fa;border-radius:12px;padding:20px;transition:all 0.3s}
.regional-card:hover{background:#f0f7ff;transform:translateY(-2px)}
.regional-name{font-size:1.2rem;color:#262626;margin-bottom:12px;font-weight:600}
.regional-performance{color:#666;line-height:1.6}
.feature-comparison{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:40px;margin-bottom:40px}
.comparison-section{background:white;border:2px solid #f0f0f0;border-radius:12px;padding:24px}
.comparison-title{font-size:1.4rem;color:#262626;margin-bottom:20px;font-weight:600;text-align:center}
.feature-list{display:flex;flex-direction:column;gap:16px}
.feature-item{display:flex;align-items:flex-start;gap:12px}
.feature-icon-small{font-size:1.5rem;margin-top:4px;flex-shrink:0}
.feature-content{flex:1}
.feature-name{font-size:1.1rem;color:#262626;margin-bottom:6px;font-weight:600}
.feature-desc{color:#666;line-height:1.5;font-size:0.95rem}
.installation-steps{margin-bottom:40px}
.platform-guide{background:white;border:2px solid #f0f0f0;border-radius:12px;padding:24px;margin-bottom:32px}
.platform-title{font-size:1.4rem;color:#262626;margin-bottom:20px;font-weight:600}
.step-list{display:flex;flex-direction:column;gap:24px}
.install-step{display:flex;gap:20px;align-items:flex-start}
.step-number{background:#ff6b35;color:white;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:bold;font-size:1.2rem;flex-shrink:0}
.step-details{flex:1}
.step-title{font-size:1.2rem;color:#262626;margin-bottom:8px;font-weight:600}
.step-description{color:#666;margin-bottom:12px;line-height:1.6}
.step-requirements{background:#f8f9fa;border-radius:8px;padding:16px}
.step-requirements h4{color:#262626;margin-bottom:8px;font-weight:600;font-size:1rem}
.requirement-list{list-style:none;margin:0}
.requirement-list li{padding:4px 0;color:#666;font-size:0.9rem}
.requirement-list li:before{content:"•";color:#ff6b35;margin-right:8px}
.troubleshooting{margin-top:40px}
.troubleshooting-title{font-size:1.5rem;color:#262626;margin-bottom:20px;font-weight:600}
.issue-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.issue-card{background:white;border:2px solid #f0f0f0;border-left:4px solid #e74c3c;border-radius:12px;padding:20px;transition:all 0.3s}
.issue-card:hover{border-color:#e74c3c;transform:translateY(-2px)}
.issue-title{font-size:1.1rem;color:#e74c3c;margin-bottom:12px;font-weight:600}
.issue-description{color:#666;margin-bottom:12px;line-height:1.6}
.issue-solution{background:#fff5f5;border-radius:6px;padding:12px;font-size:0.9rem;line-height:1.5}
.issue-solution strong{color:#262626}
.security-features{margin-bottom:40px}
.security-category{background:white;border:2px solid #f0f0f0;border-radius:12px;padding:24px;margin-bottom:24px}
.security-category-title{font-size:1.4rem;color:#262626;margin-bottom:20px;font-weight:600}
.security-items{display:flex;flex-direction:column;gap:16px}
.security-item{display:flex;gap:16px;align-items:flex-start}
.security-icon{font-size:2rem;color:#ff6b35;flex-shrink:0}
.security-details{flex:1}
.security-feature{font-size:1.1rem;color:#262626;margin-bottom:8px;font-weight:600}
.security-description{color:#666;line-height:1.6}
.security-certifications{margin-top:40px}
.certifications-title{font-size:1.5rem;color:#262626;margin-bottom:20px;font-weight:600}
.certifications-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.cert-item{background:#f0f7ff;border-radius:12px;padding:20px;text-align:center}
.cert-name{font-size:1.2rem;color:#ff6b35;margin-bottom:12px;font-weight:600}
.cert-description{color:#666;line-height:1.6}
.ux-improvements{margin-bottom:40px}
.ux-category{background:white;border:2px solid #f0f0f0;border-radius:12px;padding:24px;margin-bottom:24px}
.ux-category-title{font-size:1.4rem;color:#262626;margin-bottom:20px;font-weight:600}
.ux-features{display:flex;flex-direction:column;gap:20px}
.ux-item{border-bottom:1px solid #eee;padding-bottom:16px}
.ux-item:last-child{border-bottom:none;padding-bottom:0}
.ux-feature-title{font-size:1.1rem;color:#262626;margin-bottom:8px;font-weight:600}
.ux-feature-desc{color:#666;margin-bottom:12px;line-height:1.6}
.ux-metrics{display:flex;flex-wrap:wrap;gap:8px}
.metric{background:#f0f7ff;color:#ff6b35;padding:4px 8px;border-radius:12px;font-size:0.85rem;font-weight:500}
.market-position{margin-bottom:40px}
.position-title{font-size:1.5rem;color:#262626;margin-bottom:20px;font-weight:600}
.performance-comparison{width:100%;border-collapse:collapse;background:white;border-radius:8px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.1)}
.performance-comparison th,.performance-comparison td{padding:12px 16px;text-align:left;border-bottom:1px solid #eee}
.performance-comparison th{background:#262626;color:white;font-weight:600}
.performance-comparison tbody tr:hover{background:#f8f9fa}
.competitive-advantages{margin-bottom:40px}
.advantages-title{font-size:1.5rem;color:#262626;margin-bottom:20px;font-weight:600}
.advantage-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.advantage-card{background:#f0f7ff;border:2px solid #e3f2fd;border-radius:12px;padding:20px}
.advantage-title{font-size:1.2rem;color:#ff6b35;margin-bottom:12px;font-weight:600}
.advantage-description{color:#666;margin-bottom:12px;line-height:1.6}
.advantage-impact{background:white;border-radius:6px;padding:12px;font-size:0.9rem;line-height:1.5}
.advantage-impact strong{color:#262626}
.competitive-weaknesses{margin-top:40px}
.weaknesses-title{font-size:1.5rem;color:#262626;margin-bottom:20px;font-weight:600}
.weakness-analysis{display:flex;flex-direction:column;gap:24px}
.weakness-item{background:white;border:2px solid #f0f0f0;border-left:4px solid #e74c3c;border-radius:12px;padding:20px}
.weakness-title{font-size:1.2rem;color:#e74c3c;margin-bottom:12px;font-weight:600}
.weakness-description{color:#666;margin-bottom:12px;line-height:1.6}
.weakness-impact{background:#fff5f5;border-radius:6px;padding:12px;margin-bottom:12px;font-size:0.9rem;line-height:1.5}
.weakness-impact strong{color:#262626}
.improvement-strategy{background:#f0f7ff;border-radius:6px;padding:12px;font-size:0.9rem;line-height:1.5}
.improvement-strategy strong{color:#262626}
.system-requirements{margin-bottom:40px}
.platform-requirements{background:white;border:2px solid #f0f0f0;border-radius:12px;padding:24px;margin-bottom:24px}
.platform-req-title{font-size:1.4rem;color:#262626;margin-bottom:20px;font-weight:600}
.req-category{margin-bottom:20px}
.req-category:last-child{margin-bottom:0}
.req-category-title{font-size:1.1rem;color:#ff6b35;margin-bottom:12px;font-weight:600}
.req-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:12px}
.req-item{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid #eee}
.req-item:last-child{border-bottom:none}
.req-label{font-weight:600;color:#262626}
.req-value{color:#666;text-align:right}
.compatibility-matrix{margin:40px 0}
.compatibility-title{font-size:1.5rem;color:#262626;margin-bottom:20px;font-weight:600}
.compatibility-table{width:100%;border-collapse:collapse;background:white;border-radius:8px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.1)}
.compatibility-table th,.compatibility-table td{padding:12px 16px;text-align:left;border-bottom:1px solid #eee}
.compatibility-table th{background:#262626;color:white;font-weight:600}
.compatibility-table tbody tr:hover{background:#f8f9fa}
.performance-optimization{margin-top:40px}
.optimization-title{font-size:1.5rem;color:#262626;margin-bottom:20px;font-weight:600}
.optimization-tips{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.tip-category{background:#f8f9fa;border-radius:12px;padding:20px}
.tip-category-title{font-size:1.2rem;color:#262626;margin-bottom:12px;font-weight:600}
.tip-list{list-style:none}
.tip-list li{padding:6px 0;color:#666;border-bottom:1px solid #eee}
.tip-list li:before{content:"💡";margin-right:8px}
.tip-list li:last-child{border-bottom:none}
.evolution-timeline{margin-bottom:40px}
.evolution-title{font-size:1.5rem;color:#262626;margin-bottom:20px;font-weight:600}
.evolution-phases{display:flex;flex-direction:column;gap:32px}
.phase-container{background:white;border:2px solid #f0f0f0;border-radius:12px;padding:24px}
.phase-title{font-size:1.3rem;color:#262626;margin-bottom:16px;font-weight:600}
.phase-content{display:flex;flex-direction:column;gap:16px}
.phase-description{color:#666;line-height:1.6}
.phase-characteristics,.phase-problems,.phase-improvements{background:#f8f9fa;border-radius:8px;padding:16px}
.characteristics-title,.problems-title,.improvements-title{font-size:1rem;color:#262626;margin-bottom:8px;font-weight:600}
.phase-features,.problems-list,.improvements-list{list-style:none;margin:0}
.phase-features li,.problems-list li,.improvements-list li{padding:4px 0;color:#666}
.phase-features li:before{content:"•";color:#ff6b35;margin-right:8px}
.problems-list li:before{content:"✗";color:#e74c3c;margin-right:8px}
.improvements-list li:before{content:"✓";color:#27ae60;margin-right:8px}
.technology-impact{margin:40px 0}
.tech-impact-title{font-size:1.5rem;color:#262626;margin-bottom:16px;font-weight:600}
.tech-impact-intro{color:#666;margin-bottom:20px;line-height:1.7}
.network-evolution-table{width:100%;border-collapse:collapse;background:white;border-radius:8px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.1)}
.network-evolution-table th,.network-evolution-table td{padding:12px 16px;text-align:left;border-bottom:1px solid #eee}
.network-evolution-table th{background:#262626;color:white;font-weight:600}
.network-evolution-table tbody tr:hover{background:#f8f9fa}
.regulatory-evolution{margin-top:40px}
.regulatory-title{font-size:1.5rem;color:#262626;margin-bottom:16px;font-weight:600}
.regulatory-intro{color:#666;margin-bottom:24px;line-height:1.7}
.regulatory-milestones{display:flex;flex-direction:column;gap:20px}
.milestone-item{background:#f0f7ff;border-left:4px solid #ff6b35;border-radius:8px;padding:20px}
.milestone-title{font-size:1.2rem;color:#ff6b35;margin-bottom:12px;font-weight:600}
.milestone-description{color:#666;line-height:1.6}
.site-footer{background:#262626;color:white;margin-top:80px}
.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px;padding:40px 20px;max-width:1200px;margin:0 auto}
.footer-section h4{color:white;margin-bottom:16px;font-weight:600}
.footer-links{list-style:none}
.footer-links li{margin-bottom:8px}
.footer-link{color:#ccc;text-decoration:none;transition:color 0.3s}
.footer-link:hover{color:white}
.footer-contact{color:#ccc}
.footer-description{color:#ccc;margin-bottom:20px;line-height:1.6}
.footer-license{margin-top:16px}
.license-info{color:#999;font-size:0.9rem;margin-bottom:4px}
.footer-logo{width:120px;height:30px;object-fit:contain;margin-bottom:16px}
.footer-payments,.footer-providers{grid-column:1/-1;text-align:center;padding:20px 0;border-top:1px solid #444}
.payments-heading,.providers-heading{color:white;margin-bottom:20px;font-weight:600}
.payments-carousel,.providers-carousel{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:24px}
.payment-icon,.provider-logo{opacity:0.7;transition:opacity 0.3s}
.payment-icon:hover,.provider-logo:hover{opacity:1}
@media (min-width:1080px){
.main-navigation{display:block}
.auth-buttons-desktop{display:flex}
.hamburger-toggle{display:none}
}
@media (max-width:1080px){
.mobile-menu.active{display:block}
.hamburger-toggle.active .hamburger-line:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger-toggle.active .hamburger-line:nth-child(2){opacity:0}
.hamburger-toggle.active .hamburger-line:nth-child(3){transform:rotate(-45deg) translate(7px,-6px)}
.header-container{padding:12px 10px}
}
@media (max-width:768px){
.hero-title{font-size:2.2rem}
.download-buttons{flex-direction:column;align-items:center}
.download-btn{width:100%;max-width:280px}
.feature-comparison{grid-template-columns:1fr}
.section-heading{font-size:1.8rem}
.network-performance-table,.performance-comparison,.compatibility-table,.network-evolution-table{font-size:0.85rem}
.network-performance-table th,.network-performance-table td,.performance-comparison th,.performance-comparison td,.compatibility-table th,.compatibility-table td,.network-evolution-table th,.network-evolution-table td{padding:8px 6px}
.header-container{padding:12px 10px}
}
@media (max-width:480px){
.hero-title{font-size:1.8rem}
.hero-description{font-size:1.1rem}
.section-heading{font-size:1.5rem}
.performance-metrics{grid-template-columns:1fr}
.regional-grid{grid-template-columns:1fr}
.advantage-cards{grid-template-columns:1fr}
.optimization-tips{grid-template-columns:1fr}
.footer-content{grid-template-columns:1fr;gap:24px;padding:24px 10px}
.payments-carousel,.providers-carousel{gap:12px}
.header-container{padding:12px 10px}
}
@media (max-width:320px){
.hero-title{font-size:1.5rem}
.section-heading{font-size:1.3rem}
.network-performance-table,.performance-comparison,.compatibility-table,.network-evolution-table{font-size:0.8rem}
.network-performance-table th,.network-performance-table td,.performance-comparison th,.performance-comparison td,.compatibility-table th,.compatibility-table td,.network-evolution-table th,.network-evolution-table td{padding:6px 4px}
.header-container{padding:12px 10px}
}