:root{--primary-color:#2563eb;--secondary-color:#f97316;--accent-color:#10b981;--text-primary:#1f2937;--text-secondary:#6b7280;--text-light:#9ca3af;--bg-primary:#ffffff;--bg-secondary:#f9fafb;--bg-dark:#111827;--border-color:#e5e7eb;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1);--shadow-xl:0 20px 25px -5px rgba(0,0,0,0.1);--radius-sm:6px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{font-family:'Inter','Helvetica Neue',Arial,sans-serif;line-height:1.6;color:var(--text-primary);background-color:var(--bg-primary);overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.section-header{text-align:center;margin-bottom:4rem}.section-header h2{font-size:3rem;font-weight:700;color:var(--text-primary);margin-bottom:1rem;letter-spacing:-0.025em}.section-header p{font-size:1.25rem;color:var(--text-secondary);max-width:600px;margin:0 auto}.btn{display:inline-flex;align-items:center;gap:0.5rem;padding:1rem 2rem;border-radius:var(--radius-lg);font-weight:600;font-size:1rem;text-decoration:none;border:none;cursor:pointer;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);position:relative;overflow:hidden;transform:translateY(0)}.btn::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);transition:left 0.5s}.btn:hover::before{left:100%}.btn-primary{background:linear-gradient(135deg,var(--primary-color),#1d4ed8);color:white;box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl);background:linear-gradient(135deg,#1d4ed8,var(--primary-color))}.btn-secondary{background:var(--bg-primary);color:var(--text-primary);border:2px solid var(--border-color);box-shadow:var(--shadow-sm)}.btn-secondary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--primary-color);color:var(--primary-color)}.btn-outline{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:white;transform:translateY(-2px);box-shadow:var(--shadow-lg)}.article-summary{font-size:1.2rem;color:#999;margin-bottom:2rem;padding:1.5rem;background:#f9f9f9;border-radius:8px;border-left:4px solid #ff3d00}.navbar{position:fixed;top:0;left:0;right:0;background:rgba(255,255,255,0.95);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);z-index:1000;transition:all 0.3s ease}.navbar.scrolled{background:rgba(255,255,255,0.98);box-shadow:var(--shadow-md)}.nav-container{max-width:1200px;margin:0 auto;padding:0 1.5rem;display:flex;justify-content:space-between;align-items:center;height:80px}.nav-logo{display:flex;align-items:center;font-size:1.5rem;font-weight:700}.nav-logo a{display:flex;align-items:center;color:var(--text-primary);text-decoration:none;transition:color 0.3s ease}.nav-logo a:hover{color:var(--primary-color)}.nav-logo i{margin-right:0.75rem;color:var(--primary-color);font-size:1.75rem;transition:transform 0.3s ease}.nav-logo a:hover i{transform:scale(1.1)}.nav-menu{display:flex;list-style:none;gap:2rem}.nav-link{color:var(--text-secondary);text-decoration:none;font-weight:500;font-size:0.95rem;transition:all 0.3s ease;position:relative}.nav-link::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--primary-color);transition:width 0.3s ease}.nav-link:hover{color:var(--primary-color)}.nav-link:hover::after{width:100%}.hamburger{display:none;flex-direction:column;cursor:pointer;gap:4px}.hamburger .bar{width:25px;height:3px;background:var(--text-primary);transition:0.3s;border-radius:2px}.hero-intro{position:relative;min-height:100vh;display:flex;align-items:center;background:linear-gradient(135deg,#f8fafc 0%,#e2e8f0 100%);overflow:hidden}.hero-intro::before,.hero-intro::after,.hero-intro .light-sweep,.bg-animation,.bg-animation::before,.bg-animation::after{position:absolute;content:'';z-index:1}.hero-intro::before{top:15%;left:10%;width:0;height:0;border-left:80px solid transparent;border-right:80px solid transparent;border-bottom:140px solid rgba(37,99,235,0.3);animation:triangleRotate 15s ease-in-out infinite;filter:drop-shadow(0 0 20px rgba(37,99,235,0.5))}.hero-intro::after{bottom:20%;right:8%;width:120px;height:120px;background:linear-gradient(45deg,rgba(249,115,22,0.25),rgba(147,51,234,0.2));clip-path:polygon(50% 0%,0% 100%,100% 100%);animation:geometricPulse 18s ease-in-out infinite}.hero-intro .light-sweep{top:0;left:0;width:3px;height:100%;background:linear-gradient(to bottom,transparent 20%,rgba(16,185,129,0.8) 40%,rgba(37,99,235,0.6) 60%,transparent 80%);animation:lightSweep 25s linear infinite;box-shadow:0 0 10px rgba(16,185,129,0.5)}.hero-background{position:absolute;top:0;left:0;right:0;bottom:0;z-index:1}.bg-animation{top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 20%,rgba(37,99,235,0.1) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(249,115,22,0.1) 0%,transparent 50%),radial-gradient(circle at 60% 40%,rgba(16,185,129,0.05) 0%,transparent 50%);animation:float 20s ease-in-out infinite}.bg-animation::before{top:55%;right:22%;width:50px;height:50px;background:linear-gradient(45deg,rgba(147,51,234,0.25),rgba(249,115,22,0.2));clip-path:polygon(50% 0%,0% 100%,100% 100%);animation:triangleRotate 20s ease-in-out infinite;filter:drop-shadow(0 0 12px rgba(147,51,234,0.3))}.bg-animation::after{bottom:35%;left:18%;width:40px;height:40px;background:conic-gradient(from 90deg,rgba(16,185,129,0.2),rgba(37,99,235,0.18),rgba(16,185,129,0.2));border-radius:25%;animation:geometricPulse 16s ease-in-out infinite reverse}@keyframes float{0%,100%{transform:translate(0,0) rotate(0deg)}33%{transform:translate(30px,-30px) rotate(1deg)}66%{transform:translate(-20px,20px) rotate(-1deg)}}@keyframes triangleRotate{0%{transform:rotate(0deg) translateX(0);opacity:0.3}50%{transform:rotate(180deg) translateX(20px);opacity:0.8}100%{transform:rotate(360deg) translateX(0);opacity:0.3}}@keyframes hexagonFloat{0%,100%{transform:translateY(0) rotate(0deg) scale(1);opacity:0.4}33%{transform:translateY(-25px) rotate(120deg) scale(1.1);opacity:0.7}66%{transform:translateY(15px) rotate(240deg) scale(0.9);opacity:0.6}}@keyframes lightSweep{0%{transform:translateX(-100%) rotate(25deg);opacity:0}50%{opacity:0.6}100%{transform:translateX(300%) rotate(25deg);opacity:0}}@keyframes geometricPulse{0%,100%{transform:scale(1) rotate(0deg);border-radius:50%;opacity:0.5}25%{transform:scale(1.2) rotate(90deg);border-radius:20%;opacity:0.8}50%{transform:scale(0.8) rotate(180deg);border-radius:0%;opacity:0.6}75%{transform:scale(1.1) rotate(270deg);border-radius:30%;opacity:0.7}}@keyframes rotate{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}.section-decoration{position:absolute;pointer-events:none;z-index:1}.circle-decoration{border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,0.05) 0%,transparent 70%)}.square-decoration{background:linear-gradient(45deg,rgba(255,255,255,0.03),rgba(255,255,255,0.01));transform:rotate(45deg)}.hero-container{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:6rem 1.5rem 4rem;display:grid;grid-template-columns:1fr;gap:4rem;align-items:center}.hero-content{text-align:center;max-width:800px;margin:0 auto}.hero-badge{display:inline-flex;align-items:center;padding:0.5rem 1.5rem;background:rgba(37,99,235,0.1);border:1px solid rgba(37,99,235,0.2);border-radius:var(--radius-xl);margin-bottom:2rem;animation:fadeInUp 0.8s ease 0.2s both}.badge-text{color:var(--primary-color);font-weight:600;font-size:0.875rem;letter-spacing:0.05em}.hero-title{font-size:clamp(3rem,8vw,5rem);font-weight:800;color:var(--text-primary);margin-bottom:1.5rem;line-height:1.1;letter-spacing:-0.025em;animation:fadeInUp 0.8s ease 0.4s both}.hero-subtitle{font-size:1.5rem;color:var(--text-secondary);margin-bottom:1rem;font-weight:500;animation:fadeInUp 0.8s ease 0.6s both}.hero-description{font-size:1.125rem;color:var(--text-light);margin-bottom:3rem;line-height:1.7;animation:fadeInUp 0.8s ease 0.8s both}.hero-stats{display:flex;justify-content:center;gap:3rem;margin-bottom:3rem;animation:fadeInUp 0.8s ease 1s both}.stat-item{text-align:center}.stat-number{font-size:2.5rem;font-weight:800;color:var(--primary-color);line-height:1;margin-bottom:0.5rem}.stat-label{font-size:0.875rem;color:var(--text-light);font-weight:500;text-transform:uppercase;letter-spacing:0.05em}.hero-buttons{display:flex;justify-content:center;gap:1.5rem;margin-bottom:4rem;animation:fadeInUp 0.8s ease 1.2s both}.highlight-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-top:4rem}.highlight-card{background:var(--bg-primary);padding:2.5rem 2rem;border-radius:var(--radius-lg);text-align:center;box-shadow:var(--shadow-sm);border:1px solid var(--border-color);transition:all 0.3s cubic-bezier(0.4,0,0.2,1);cursor:pointer;transform:translateY(0)}.highlight-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--primary-color)}.card-icon{width:80px;height:80px;background:linear-gradient(135deg,var(--primary-color),#1d4ed8);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;transition:all 0.3s ease}.highlight-card:hover .card-icon{transform:scale(1.1) rotate(5deg);background:linear-gradient(135deg,#1d4ed8,var(--primary-color))}.card-icon i{font-size:2rem;color:white}.highlight-card h3{font-size:1.25rem;font-weight:700;color:var(--text-primary);margin-bottom:0.75rem}.highlight-card p{color:var(--text-secondary);line-height:1.6}@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@keyframes slideInLeft{from{opacity:0;transform:translateX(-30px)}to{opacity:1;transform:translateX(0)}}@keyframes slideInRight{from{opacity:0;transform:translateX(30px)}to{opacity:1;transform:translateX(0)}}.video-demo{padding:6rem 0;background:var(--bg-secondary);position:relative;overflow:hidden}.video-demo::before,.video-demo::after{position:absolute;content:'';z-index:1}.video-demo::before{top:25%;right:10%;width:100px;height:100px;background:linear-gradient(60deg,rgba(16,185,129,0.3),rgba(37,99,235,0.2));clip-path:polygon(50% 0%,93.3% 25%,93.3% 75%,50% 100%,6.7% 75%,6.7% 25%);animation:hexagonFloat 16s ease-in-out infinite;filter:drop-shadow(0 0 15px rgba(16,185,129,0.4))}.video-demo::after{bottom:30%;left:12%;width:80px;height:80px;background:conic-gradient(from 0deg,rgba(147,51,234,0.25),rgba(249,115,22,0.2),rgba(147,51,234,0.25));border-radius:20px;animation:geometricPulse 14s ease-in-out infinite reverse}.video-container{display:flex;justify-content:center;align-items:center}.video-wrapper{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);background:var(--bg-dark);max-width:800px;width:100%}.video-wrapper video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}.video-info h3{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:1rem}.video-info p{color:var(--text-secondary);line-height:1.7;margin-bottom:2rem}.video-features{list-style:none}.video-features li{display:flex;align-items:center;margin-bottom:0.75rem;color:var(--text-secondary)}.video-features i{color:var(--accent-color);margin-right:0.75rem;font-size:1.1rem}.video-features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:2rem}.feature-column{background:var(--bg-secondary);padding:1.5rem;border-radius:var(--radius-lg);border:1px solid var(--border-color);transition:all 0.3s ease}.feature-column:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--primary-color)}.feature-column h4{color:var(--text-primary);font-size:1.1rem;font-weight:600;margin-bottom:1rem;display:flex;align-items:center;gap:0.5rem}.feature-column h4 i{color:var(--primary-color);font-size:1.2rem}.features{padding:6rem 0;background:var(--bg-primary);position:relative;overflow:hidden}.features::before,.features::after{position:absolute;content:'';z-index:1}.features::before{top:30%;left:5%;width:100px;height:100px;background:linear-gradient(135deg,rgba(147,51,234,0.3),rgba(37,99,235,0.2));clip-path:polygon(20% 0%,80% 0%,100% 20%,100% 80%,80% 100%,20% 100%,0% 80%,0% 20%);animation:geometricPulse 22s ease-in-out infinite;filter:drop-shadow(0 0 20px rgba(147,51,234,0.4))}.features::after{bottom:25%;right:12%;width:0;height:0;border-left:60px solid transparent;border-right:60px solid transparent;border-top:120px solid rgba(249,115,22,0.25);animation:triangleRotate 20s ease-in-out infinite reverse;filter:drop-shadow(0 0 25px rgba(249,115,22,0.3))}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem}.feature-card{background:var(--bg-primary);padding:3rem 2rem;border-radius:var(--radius-lg);text-align:center;box-shadow:var(--shadow-sm);border:1px solid var(--border-color);transition:all 0.3s cubic-bezier(0.4,0,0.2,1);position:relative;overflow:hidden}.feature-card::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(37,99,235,0.05),transparent);transition:left 0.5s}.feature-card:hover::before{left:100%}.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--primary-color)}.feature-icon{width:80px;height:80px;background:linear-gradient(135deg,var(--primary-color),#1d4ed8);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin:0 auto 2rem;transition:all 0.3s ease}.feature-card:hover .feature-icon{transform:scale(1.1);background:linear-gradient(135deg,var(--secondary-color),#ea580c)}.feature-icon i{font-size:2rem;color:white}.feature-card h3{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:1rem}.feature-card p{color:var(--text-secondary);line-height:1.6}.usage-guide{padding:6rem 0;background:var(--bg-secondary)}.guide-steps{display:grid;gap:2rem;max-width:800px;margin:0 auto}.step{display:flex;align-items:flex-start;gap:2rem;background:var(--bg-primary);padding:2.5rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border-color);transition:all 0.3s ease}.step:hover{transform:translateX(8px);box-shadow:var(--shadow-lg);border-color:var(--primary-color)}.step-number{width:60px;height:60px;background:linear-gradient(135deg,var(--primary-color),#1d4ed8);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;flex-shrink:0;transition:all 0.3s ease}.step:hover .step-number{transform:scale(1.1);background:linear-gradient(135deg,var(--secondary-color),#ea580c)}.step-content h3{font-size:1.25rem;font-weight:700;color:var(--text-primary);margin-bottom:0.5rem}.step-content p{color:var(--text-secondary);line-height:1.6}.notice{padding:6rem 0;background:linear-gradient(135deg,var(--secondary-color),#ea580c);color:white}.notice-content h2{text-align:center;font-size:2.5rem;font-weight:700;margin-bottom:3rem;display:flex;align-items:center;justify-content:center;gap:1rem}.notice-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.notice-item{background:rgba(255,255,255,0.1);padding:2.5rem;border-radius:var(--radius-lg);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,0.2);transition:all 0.3s ease}.notice-item:hover{transform:translateY(-4px);background:rgba(255,255,255,0.15)}.notice-item h3{font-size:1.25rem;font-weight:700;margin-bottom:1.5rem}.notice-item ul{list-style:none}.notice-item li{padding:0.5rem 0;padding-left:1.5rem;position:relative}.notice-item li::before{content:"•";position:absolute;left:0;color:white;font-size:1.2rem}.faq{padding:6rem 0;background:var(--bg-primary)}.faq-list{max-width:800px;margin:0 auto}.faq-item{background:var(--bg-primary);margin-bottom:1rem;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--border-color);transition:all 0.3s ease}.faq-item:hover{box-shadow:var(--shadow-md);border-color:var(--primary-color)}.faq-question{padding:1.5rem 2rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;background:var(--bg-primary);transition:all 0.3s ease}.faq-question:hover{background:var(--bg-secondary)}.faq-question h3{color:var(--text-primary);font-size:1.125rem;font-weight:600}.faq-question i{color:var(--primary-color);transition:transform 0.3s ease;font-size:1.1rem}.faq-answer{padding:0 2rem 1.5rem;background:var(--bg-secondary);display:none;animation:slideDown 0.3s ease}.faq-answer p{color:var(--text-secondary);line-height:1.7}.faq-item.active .faq-question i{transform:rotate(180deg)}.faq-item.active .faq-answer{display:block}@keyframes slideDown{from{opacity:0;max-height:0}to{opacity:1;max-height:200px}}.pricing{padding:6rem 0;background:var(--bg-secondary);position:relative;overflow:hidden}.pricing::before,.pricing::after{position:absolute;content:'';z-index:1}.pricing::before{top:20%;left:8%;width:80px;height:80px;background:linear-gradient(45deg,rgba(37,99,235,0.25),rgba(16,185,129,0.2));clip-path:polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);animation:hexagonFloat 18s ease-in-out infinite;filter:drop-shadow(0 0 15px rgba(37,99,235,0.4))}.pricing::after{bottom:30%;right:15%;width:90px;height:90px;background:conic-gradient(from 45deg,rgba(249,115,22,0.3),rgba(147,51,234,0.25),rgba(249,115,22,0.3));clip-path:polygon(50% 0%,100% 50%,50% 100%,0% 50%);animation:geometricPulse 16s ease-in-out infinite reverse}.pricing-grid{display:grid;gap:1.5rem;max-width:1200px;margin:0 auto;grid-template-columns:1fr}@media (min-width:768px){.pricing-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width:1200px){.pricing-grid{grid-template-columns:repeat(4,1fr)}}.pricing-card{background:var(--bg-primary);border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow-md);transition:all 0.3s ease;position:relative;display:flex;flex-direction:column;height:100%}.pricing-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--primary-color)}.pricing-card.featured{border:2px solid var(--primary-color);transform:scale(1.05);background:linear-gradient(135deg,var(--primary-color),#1d4ed8);color:white}.pricing-card.featured:hover{transform:scale(1.05) translateY(-8px)}.pricing-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--secondary-color);color:white;padding:0.5rem 1.5rem;border-radius:var(--radius-xl);font-size:0.875rem;font-weight:600;letter-spacing:0.05em}.pricing-header h3{font-size:1.5rem;font-weight:700;margin-bottom:1.5rem}.price{margin-bottom:2rem}.currency{font-size:1.25rem;vertical-align:top;opacity:0.8}.amount{font-size:3.5rem;font-weight:800;line-height:1}.period{font-size:1rem;opacity:0.8;margin-left:0.25rem}.pricing-features{flex:1;margin:1.5rem 0}.pricing-features ul{list-style:none;margin-bottom:2.5rem;text-align:left}.pricing-features li{padding:0.75rem 0;display:flex;align-items:center;gap:0.75rem;font-size:0.95rem}.pricing-features i.fa-check{color:var(--accent-color);font-size:1.1rem}.pricing-card.featured .pricing-features i.fa-check{color:#4ade80}.pricing-footer{margin-top:auto;text-align:center}.pricing-footer .btn{width:100%;justify-content:center}.articles{padding:6rem 0;background:var(--bg-primary);position:relative;overflow:hidden}.articles::before,.articles::after{position:absolute;content:'';z-index:1}.articles::before{top:35%;right:15%;width:70px;height:70px;background:linear-gradient(90deg,rgba(147,51,234,0.3),rgba(16,185,129,0.25));border-radius:50% 20% 50% 20%;animation:geometricPulse 19s ease-in-out infinite;filter:drop-shadow(0 0 18px rgba(147,51,234,0.4))}.articles::after{bottom:25%;left:12%;width:60px;height:60px;background:radial-gradient(ellipse at center,rgba(249,115,22,0.25),rgba(37,99,235,0.2));clip-path:polygon(25% 0%,75% 0%,100% 50%,75% 100%,25% 100%,0% 50%);animation:hexagonFloat 15s ease-in-out infinite reverse}.articles-header{padding:120px 0 1px;background:linear-gradient(135deg,#f8fafc 0%,#e2e8f0 100%)}.articles-filter{max-width:800px;margin:0 auto;padding:2rem;background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.search-box{display:flex;gap:1rem;margin-bottom:1.5rem}.search-box input{flex:1;padding:0.75rem 1rem;border:2px solid var(--border-color);border-radius:var(--radius-md);font-size:1rem;transition:all 0.3s ease}.search-box input:focus{border-color:var(--primary-color);outline:none}.search-box button{padding:0.75rem 1.5rem;background:var(--primary-color);color:white;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all 0.3s ease}.search-box button:hover{background:#1d4ed8}.category-filter{display:flex;gap:1rem;flex-wrap:wrap}.category-filter button{padding:0.5rem 1rem;background:var(--bg-secondary);border:none;border-radius:var(--radius-md);cursor:pointer;transition:all 0.3s ease}.category-filter button.active,.category-filter button:hover{background:var(--primary-color);color:white}.articles-list{padding:60px 0}.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;margin-bottom:2.5rem}.articles-footer{text-align:center;padding:2rem 0}.article-card{background:var(--bg-primary);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);transition:all 0.3s ease}.article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.article-image{position:relative;height:200px;overflow:hidden}.article-image img{width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease}.article-card:hover .article-image img{transform:scale(1.1)}.article-image .category{position:absolute;top:1rem;left:1rem;padding:0.25rem 0.75rem;background:var(--primary-color);color:white;border-radius:var(--radius-sm);font-size:0.875rem}.article-content{padding:1.5rem 2rem;max-width:75rem;margin:0 auto;text-align:left}.article-content h2{font-size:1.75rem;font-weight:700;color:var(--text-primary);margin:2rem 0 1rem}.article-content h3{margin-bottom:1rem;font-size:1.25rem;line-height:1.4}.article-content h3 a{color:var(--text-primary);text-decoration:none;transition:color 0.3s ease}.article-content h3 a:hover{color:var(--primary-color)}.article-content p{color:var(--text-secondary);line-height:1.8;margin-bottom:1.5rem}.article-content ul,.article-content ol{margin:1rem 0 1.5rem;padding-left:1.5rem}.article-content li{color:var(--text-secondary);line-height:1.8;margin-bottom:0.5rem}.article-content img,.article-content p img{display:block;max-width:100%;width:100%;height:auto;margin:1.5rem auto;border-radius:var(--radius-md);box-shadow:0 2px 8px rgba(0,0,0,0.1);object-fit:contain}.article-content img[title],.article-content p img[title]{margin-bottom:0.5rem}.article-content img[alt],.article-content p img[alt]{margin-top:0.5rem}.image-container{text-align:center;margin:2rem 0;width:100%;max-width:100%;overflow:hidden}.image-caption{color:var(--text-secondary);font-size:0.875rem;margin-top:0.5rem;text-align:center}.article-meta{display:flex;gap:1rem;margin-bottom:1rem;color:var(--text-secondary);font-size:0.875rem;justify-content:center}.article-meta .category{background:var(--primary-color);color:white;padding:0.25rem 0.75rem;border-radius:var(--radius-sm);font-weight:500}.article-tags{margin:2rem 0;display:flex;gap:1rem;flex-wrap:wrap}.tag{background:#f2f3f7;color:#e54a3a;padding:0.5rem 1rem;border-radius:20px;font-size:0.9rem}.article-categories{display:flex;justify-content:center;align-items:center;gap:clamp(1.5rem,3vw,2.5rem);margin:0 auto 1.0rem;padding:1rem 2rem;max-width:1400px;flex-wrap:wrap}.category{padding:0.6rem 1.2rem;background:white;color:var(--text-color);text-decoration:none;border-radius:20px;font-size:0.9rem;transition:all 0.3s ease;position:relative;overflow:hidden}.article-header .category{height:40px;line-height:40px;padding:0 1.2rem;display:inline-flex;align-items:center;justify-content:center;margin:0;border:none;box-sizing:border-box}.related-item{display:block;padding:1.25rem;border-radius:0.5rem;background:#fff;box-shadow:0 2px 5px rgba(0,0,0,0.05);transition:all 0.3s ease;position:relative;overflow:hidden;text-decoration:none;color:inherit}.related-item::before{content:'';position:absolute;top:0;left:0;width:0;height:3px;background-color:#3b82f6;transition:width 0.3s ease}.related-item:hover{transform:translateY(-3px);box-shadow:0 8px 15px rgba(0,0,0,0.1)}.related-item:hover::before{width:100%}.related-title{display:block;font-weight:500;margin-bottom:0.75rem;line-height:1.4}.title_color{transition:color 0.3s ease}.related-item:hover .title_color{color:#3b82f6}.related-date{display:block;color:#6b7280;font-size:0.875rem;opacity:0.8}.read-more{display:inline-flex;align-items:center;gap:0.5rem;color:var(--primary-color);text-decoration:none;font-weight:500;transition:gap 0.3s ease}.read-more:hover{gap:0.75rem}.article-detail{padding:120px 0 60px}.article-header{max-width:1200px;margin:0 auto 3rem;text-align:center}.article-header h1{font-size:2.5rem;font-weight:700;color:var(--text-primary);margin:1rem 0;line-height:1.3}.article-author{display:flex;align-items:center;justify-content:center;gap:1rem;margin-top:2rem}.article-author img{width:48px;height:48px;border-radius:50%;object-fit:cover}.author-info{text-align:left}.author-name{display:block;font-weight:600;color:var(--text-primary)}.author-title{display:block;font-size:0.875rem;color:var(--text-secondary)}.featured-image{width:100%;height:400px;object-fit:cover;border-radius:var(--radius-lg);margin-bottom:2rem}.skill-combo{background:var(--bg-secondary);padding:1.5rem;border-radius:var(--radius-md);margin:1.5rem 0}.skill-combo h3{color:var(--primary-color);margin-bottom:0.5rem}.leveling-path{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin:1.5rem 0}.path-item{background:var(--bg-secondary);padding:1.5rem;border-radius:var(--radius-md);text-align:center}.path-item h4{color:var(--primary-color);margin-bottom:0.5rem}.notice-box{background:#fef2f2;border-left:4px solid #ef4444;padding:1.5rem;border-radius:var(--radius-md);margin:1.5rem 0}.notice-box p{display:flex;align-items:center;gap:0.75rem;margin-bottom:0.5rem}.notice-box p:last-child{margin-bottom:0}.notice-box i{color:#ef4444}.share-buttons{display:flex;align-items:center;gap:1rem;margin:3rem 0;padding-top:2rem;border-top:1px solid var(--border-color)}.share-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;color:white;text-decoration:none;transition:transform 0.3s ease}.share-btn:hover{transform:scale(1.1)}.share-btn.qq{background:#12b7f5}.share-btn.weixin{background:#07c160}.share-btn.weibo{background:#e6162d}.related-articles{margin-top:4rem}.related-articles h3{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:2rem}.related-articles .articles-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.breadcrumb{display:flex;align-items:center;margin:1.5rem 0 2.5rem;padding:0.5rem 0;font-family:'Inter',sans-serif;color:#6b7280;font-size:0.9rem;background-color:rgba(255,255,255,0.7);backdrop-filter:blur(5px);border-radius:0.375rem;padding-left:1rem;box-shadow:0 1px 3px rgba(0,0,0,0.05)}.breadcrumb ul{display:flex;list-style:none;margin:0;padding:0}.breadcrumb li{margin-right:0.75rem;position:relative}.breadcrumb li:last-child{margin-right:0;color:#4b5563;font-weight:500}.breadcrumb a{color:#6b7280;text-decoration:none;transition:color 0.3s ease;display:flex;align-items:center}.breadcrumb a:hover{color:#3b82f6}.breadcrumb a i{margin-right:0.375rem;font-size:0.85rem}.breadcrumb .separator{margin:0 0.75rem;color:#e5e7eb;font-weight:bold}#page{display:flex;justify-content:center;align-items:center;gap:0.5rem;margin-top:3rem;flex-wrap:wrap}#page a,#page span{display:inline-flex;align-items:center;justify-content:center;min-width:2.5rem;height:2.5rem;padding:0 0.75rem;border-radius:var(--radius-md);background:var(--bg-primary);color:var(--text-primary);text-decoration:none;transition:all 0.3s ease;border:1px solid var(--border-color)}#page a:hover,#page a.curpage{background:var(--primary-color);color:white;border-color:var(--primary-color)}#page .pageinfo{margin-right:1rem;color:var(--text-secondary)}#page .pageinfo strong{color:var(--primary-color);font-weight:600;margin:0 0.25rem}#page .homepage,#page .endpage{background:var(--bg-secondary)}#page .nopage{color:var(--text-light);cursor:not-allowed;background:var(--bg-secondary)}#page .nopage:hover{background:var(--bg-secondary);color:var(--text-light);border-color:var(--border-color)}.contact{padding:6rem 0;background:var(--bg-secondary);position:relative;overflow:hidden}.contact::before,.contact::after{position:absolute;content:'';z-index:1}.contact::before{top:25%;left:8%;width:90px;height:90px;background:conic-gradient(from 0deg,rgba(37,99,235,0.25),rgba(16,185,129,0.2),rgba(37,99,235,0.25));clip-path:polygon(50% 0%,93.3% 25%,93.3% 75%,50% 100%,6.7% 75%,6.7% 25%);animation:hexagonFloat 17s ease-in-out infinite;filter:drop-shadow(0 0 20px rgba(37,99,235,0.3))}.contact::after{bottom:35%;right:15%;width:75px;height:75px;background:linear-gradient(135deg,rgba(16,185,129,0.25),rgba(147,51,234,0.2));clip-path:polygon(30% 0%,70% 0%,100% 30%,100% 70%,70% 100%,30% 100%,0% 70%,0% 30%);animation:geometricPulse 21s ease-in-out infinite reverse}.contact-content{display:grid;grid-template-columns:2fr 1fr;gap:4rem;align-items:center}.contact-info h2{font-size:2.5rem;font-weight:700;color:var(--text-primary);margin-bottom:1.5rem}.contact-info p{font-size:1.125rem;color:var(--text-secondary);margin-bottom:3rem;line-height:1.7}.qq-groups{display:grid;gap:1.5rem}.qq-group{background:var(--bg-primary);padding:2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;transition:all 0.3s ease}.qq-group:hover{transform:translateX(4px);box-shadow:var(--shadow-md);border-color:var(--primary-color)}.group-info h3{color:var(--text-primary);font-weight:600;margin-bottom:0.5rem}.group-number{color:var(--primary-color);font-weight:700;margin-bottom:0.25rem}.group-desc{color:var(--text-light);font-size:0.9rem}.qr-code-text{text-align:center;background:var(--bg-primary);padding:2.5rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.qr-code-text h3{color:var(--text-primary);font-weight:600;margin-bottom:1rem}.qr-code-text p{color:var(--text-secondary);margin:0.5rem 0}.footer{background:var(--bg-dark);color:#d1d5db;padding:5rem 0 2.5rem;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:550px}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:6rem;margin-bottom:3rem;width:100%;max-width:1200px;padding:0 2.5rem;margin:0 auto 3rem}.footer-section{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:220px;text-align:center;padding:1.5rem 0}.footer-section h3{margin:0 0 1.8rem 0;color:white;font-weight:600}.footer-section p{line-height:1.8;color:#9ca3af;margin:0;max-width:320px}.footer-section ul{list-style:none;padding:0;margin:0;width:100%}.footer-section ul li{margin-bottom:1rem;display:flex;align-items:center;justify-content:center}.footer-section ul li i{margin-right:0.85rem;color:var(--primary-color);width:16px}.footer-section ul li a{color:#9ca3af;text-decoration:none;transition:color 0.3s ease}.footer-section ul li a:hover{color:var(--primary-color)}.footer-bottom{border-top:1px solid #374151;padding:2.5rem 2.5rem 0;text-align:center;color:#9ca3af;width:100%;max-width:1200px}.footer-bottom a{color:#9ca3af;text-decoration:none;position:relative}.footer-bottom a:hover{color:#ffffff}.footer-bottom a::after{content:'';position:absolute;width:0;height:1px;bottom:-2px;left:0;background-color:#ffffff;transition:width 0.3s ease}.footer-bottom a:hover::after{width:100%}.back-to-top{position:fixed;bottom:2rem;right:2rem;width:50px;height:50px;background:linear-gradient(135deg,var(--primary-color),#1d4ed8);color:white;border:none;border-radius:50%;cursor:pointer;font-size:1.25rem;opacity:0;visibility:hidden;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);z-index:999;box-shadow:var(--shadow-lg)}.back-to-top.show{opacity:1;visibility:visible}.back-to-top:hover{transform:translateY(-4px) scale(1.1);box-shadow:var(--shadow-xl)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--primary-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#1d4ed8}::selection{background:var(--primary-color);color:white}button:focus,a:focus{outline:2px solid var(--primary-color);outline-offset:2px}.fade-in{opacity:0;transform:translateY(20px);transition:all 0.6s ease}.fade-in.visible{opacity:1;transform:translateY(0)}@media (max-width:1024px){.hero-stats{gap:2rem}.stat-number{font-size:2rem}.video-wrapper{max-width:600px}.video-features-grid{grid-template-columns:1fr;gap:1.5rem}.contact-content{grid-template-columns:1fr;gap:3rem}}@media (max-width:768px){.hamburger{display:flex}.nav-menu{position:fixed;left:-100%;top:80px;flex-direction:column;background:var(--bg-primary);width:100%;text-align:center;transition:0.3s;box-shadow:var(--shadow-lg);padding:2rem 0;gap:1rem}.nav-container{justify-content:center}.nav-logo{margin:0 auto}.nav-logo i{margin-right:0.5rem}.nav-menu.active{left:0}.hero-container{padding:4rem 1.5rem 2rem}.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1.25rem}.hero-stats{flex-direction:column;gap:1.5rem}.hero-buttons{flex-direction:column;align-items:center;gap:1rem}.btn{width:100%;max-width:280px;justify-content:center}.highlight-cards{grid-template-columns:1fr;gap:1.5rem}.features-grid{grid-template-columns:1fr}.pricing-card.featured{transform:none}.articles-grid{grid-template-columns:1fr}.qq-group{flex-direction:column;text-align:center;gap:1.5rem}.section-header h2{font-size:2rem}.step{flex-direction:column;text-align:center;gap:1.5rem}.article-header h1{font-size:2rem}.featured-image{height:300px}.article-content{padding:1.5rem}.article-content h2{font-size:1.5rem}.leveling-path{grid-template-columns:1fr}.breadcrumb{font-size:0.8rem;margin:1rem 0 2rem;padding-left:0.75rem}.breadcrumb .separator{margin:0 0.5rem}.hero-badge{margin-top:3rem}}@media (max-width:480px){.container{padding:0 1rem}.hero-container{padding:3rem 1rem 2rem}.hero-title{font-size:2rem}.section-header h2{font-size:1.75rem}.btn{padding:0.875rem 1.5rem;font-size:0.9rem}.article-header h1{font-size:1.75rem}.featured-image{height:200px}.search-box{flex-direction:column}.search-box button{width:100%}.category-filter{justify-content:center}#page{gap:0.25rem}#page a,#page span{min-width:2rem;height:2rem;padding:0 0.5rem;font-size:0.875rem}#page .pageinfo{width:100%;text-align:center;margin-bottom:0.5rem}.footer{padding:4rem 0 2rem;min-height:auto}.footer-content{grid-template-columns:1fr;gap:3rem;padding:0 1.8rem;margin-bottom:2.5rem}.footer-section{min-height:180px;padding:1.2rem 0}.footer-section h3{margin-bottom:1.5rem}.footer-section ul li{margin-bottom:0.85rem}.footer-bottom{padding:2rem 1.8rem 0}}