*{margin:0;padding:0;box-sizing:border-box}
:root{--bg-primary:#0a0f1a;--bg-secondary:#0d1117;--bg-card:#111827;--text-primary:#e8edf5;--text-secondary:#94a3b8;--text-muted:#64748b;--accent:#00d4aa;--accent-secondary:#06b6d4;--accent-tertiary:#8b5cf6;--border:#1e293b}
body{font-family:'Noto Sans SC',system-ui,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;background-image:radial-gradient(at 40% 20%,rgba(0,212,170,.15) 0,transparent 50%),radial-gradient(at 80% 0%,rgba(6,182,212,.1) 0,transparent 50%),radial-gradient(at 0% 50%,rgba(139,92,246,.1) 0,transparent 50%);background-attachment:fixed}
.container{max-width:1280px;margin:0 auto;padding:0 1rem}
.text-gradient{background:linear-gradient(135deg,var(--accent),var(--accent-secondary),var(--accent-tertiary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.glass-card{background:rgba(17,24,39,.8);backdrop-filter:blur(12px);border:1px solid rgba(0,212,170,.1);border-radius:1rem;transition:all .3s}
.glass-card:hover{border-color:rgba(0,212,170,.3)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:9999px;font-weight:600;font-size:.875rem;cursor:pointer;transition:all .3s;text-decoration:none;border:none}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-secondary));color:var(--bg-primary)}
.btn-primary:hover{opacity:.9;transform:translateY(-2px)}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-primary)}
.btn-outline:hover{border-color:rgba(0,212,170,.5);background:rgba(30,41,59,.5)}
.btn-sm{padding:.5rem 1.25rem}
.btn-lg{padding:1rem 2rem;font-size:1.125rem}
.btn-block{width:100%}
.pulse-glow{animation:pulse-glow 3s ease-in-out infinite}
@keyframes pulse-glow{0%,100%{box-shadow:0 0 20px rgba(0,212,170,.3)}50%{box-shadow:0 0 40px rgba(0,212,170,.6)}}
.header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(17,24,39,.8);backdrop-filter:blur(12px);border-bottom:1px solid rgba(0,212,170,.1)}
.header-content{display:flex;align-items:center;justify-content:space-between;height:4rem}
.logo{display:flex;align-items:center;gap:.5rem;text-decoration:none}
.logo-icon{width:2.5rem;height:2.5rem;border-radius:.75rem;background:linear-gradient(135deg,var(--accent),var(--accent-secondary));display:flex;align-items:center;justify-content:center;color:var(--bg-primary)}
.logo-text{font-size:1.25rem;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent-secondary),var(--accent-tertiary));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-desktop{display:none;gap:2rem}
.nav-desktop a{color:var(--text-secondary);text-decoration:none;font-size:.875rem;font-weight:500;transition:color .3s}
.nav-desktop a:hover{color:var(--accent)}
.header .btn-primary{display:none}
.mobile-menu-btn{background:none;border:none;color:var(--text-primary);cursor:pointer;padding:.5rem}
.mobile-menu{display:none;flex-direction:column;padding:1rem;gap:.75rem;background:rgba(17,24,39,.95);border-top:1px solid var(--border)}
.mobile-menu.active{display:flex}
.mobile-menu a{color:var(--text-secondary);text-decoration:none;padding:.5rem 0;font-weight:500}
@media(min-width:768px){.nav-desktop{display:flex}.header .btn-primary{display:inline-flex}.mobile-menu-btn{display:none}}
.hero{position:relative;padding:8rem 0 5rem;overflow:hidden}
.hero-bg{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.hero-blob{position:absolute;border-radius:50%;filter:blur(80px);animation:float 6s ease-in-out infinite}
.blob-1{top:25%;left:25%;width:24rem;height:24rem;background:rgba(0,212,170,.1)}
.blob-2{bottom:25%;right:25%;width:20rem;height:20rem;background:rgba(6,182,212,.1);animation-delay:2s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-20px)}}
.hero-content{position:relative;z-index:10;text-align:center;max-width:56rem;margin:0 auto}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:9999px;background:var(--border);border:1px solid rgba(0,212,170,.3);margin-bottom:1.5rem}
.badge-dot{width:.5rem;height:.5rem;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.hero-badge span:last-child{font-size:.875rem;color:var(--text-secondary)}
.hero-title{font-size:2.5rem;font-weight:700;line-height:1.2;margin-bottom:1.5rem}
@media(min-width:768px){.hero-title{font-size:3.75rem}}
@media(min-width:1024px){.hero-title{font-size:4.5rem}}
.hero-desc{font-size:1.125rem;color:var(--text-secondary);max-width:42rem;margin:0 auto 2.5rem}
.hero-buttons{display:flex;flex-direction:column;align-items:center;gap:1rem}
@media(min-width:640px){.hero-buttons{flex-direction:row;justify-content:center}}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-top:5rem}
@media(min-width:768px){.stats-grid{grid-template-columns:repeat(4,1fr)}}
.stat-card{text-align:center;padding:1.5rem}
.stat-icon{width:3rem;height:3rem;border-radius:.75rem;background:linear-gradient(135deg,rgba(0,212,170,.2),rgba(6,182,212,.2));display:flex;align-items:center;justify-content:center;margin:0 auto .75rem;color:var(--accent)}
.stat-value{font-size:1.5rem;font-weight:700;margin-bottom:.25rem}
@media(min-width:768px){.stat-value{font-size:1.875rem}}
.stat-label{font-size:.875rem;color:var(--text-secondary)}
.section-header{text-align:center;margin-bottom:4rem}
.section-header h2{font-size:1.875rem;font-weight:700;margin-bottom:1rem}
@media(min-width:768px){.section-header h2{font-size:2.25rem}}
.section-header p{color:var(--text-secondary);font-size:1.125rem;max-width:42rem;margin:0 auto}
.features{padding:5rem 0}
.features-grid{display:grid;gap:1.5rem}
@media(min-width:768px){.features-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.features-grid{grid-template-columns:repeat(4,1fr)}}
.feature-card{padding:1.5rem}
.feature-icon{width:3.5rem;height:3.5rem;border-radius:.75rem;background:linear-gradient(135deg,rgba(0,212,170,.2),rgba(6,182,212,.2));display:flex;align-items:center;justify-content:center;margin-bottom:1rem;color:var(--accent);transition:transform .3s}
.feature-card:hover .feature-icon{transform:scale(1.1)}
.feature-card h3{font-size:1.25rem;font-weight:600;margin-bottom:.5rem}
.feature-card p{color:var(--text-secondary)}
.pricing{padding:5rem 0;background:var(--bg-secondary)}
.pricing-grid{display:grid;gap:2rem}
@media(min-width:768px){.pricing-grid{grid-template-columns:repeat(3,1fr)}}
.pricing-card{position:relative;padding:2rem}
.pricing-card.popular{background:linear-gradient(180deg,rgba(0,212,170,.1),rgba(6,182,212,.05));border:2px solid rgba(0,212,170,.5)}
.popular-badge{position:absolute;top:-1rem;left:50%;transform:translateX(-50%);padding:.25rem 1rem;border-radius:9999px;background:linear-gradient(135deg,var(--accent),var(--accent-secondary));color:var(--bg-primary);font-size:.875rem;font-weight:600}
.pricing-header{text-align:center;margin-bottom:1.5rem}
.pricing-header h3{font-size:1.25rem;font-weight:600;margin-bottom:.5rem}
.pricing-price{display:flex;align-items:baseline;justify-content:center;gap:.25rem}
.pricing-price .price{font-size:2.5rem;font-weight:700}
.pricing-price .period{color:var(--text-secondary)}
.pricing-features{list-style:none;margin-bottom:2rem}
.pricing-features li{display:flex;align-items:center;gap:.75rem;padding:.5rem 0;color:var(--text-secondary)}
.pricing-features li svg{color:var(--accent);flex-shrink:0}
.download{padding:5rem 0}
.download-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
@media(min-width:768px){.download-grid{grid-template-columns:repeat(5,1fr)}}
.download-card{display:block;padding:1.5rem;text-align:center;text-decoration:none;color:inherit}
.download-icon{width:3rem;height:3rem;border-radius:.75rem;background:linear-gradient(135deg,rgba(0,212,170,.2),rgba(6,182,212,.2));display:flex;align-items:center;justify-content:center;margin:0 auto .75rem;color:var(--accent);transition:transform .3s}
.download-card:hover .download-icon{transform:scale(1.1)}
.download-name{font-weight:600;margin-bottom:.25rem}
.download-desc{font-size:.875rem;color:var(--text-secondary)}
.cta{padding:5rem 0;background:linear-gradient(135deg,rgba(0,212,170,.1),rgba(6,182,212,.1))}
.cta-content{text-align:center}
.cta-content h2{font-size:1.875rem;font-weight:700;margin-bottom:1rem}
@media(min-width:768px){.cta-content h2{font-size:2.25rem}}
.cta-content p{color:var(--text-secondary);font-size:1.125rem;margin-bottom:2rem}
.cta-buttons{display:flex;flex-direction:column;align-items:center;gap:1rem}
@media(min-width:640px){.cta-buttons{flex-direction:row;justify-content:center}}
.footer{background:var(--bg-secondary);border-top:1px solid var(--border);padding:3rem 0}
.footer-grid{display:grid;gap:2rem}
@media(min-width:768px){.footer-grid{grid-template-columns:2fr 1fr 1fr}}
.footer-brand p{color:var(--text-secondary);font-size:.875rem;margin:1rem 0;max-width:24rem}
.footer-links h4{font-weight:600;margin-bottom:1rem}
.footer-links ul{list-style:none}
.footer-links li{margin-bottom:.5rem}
.footer-links a{color:var(--text-secondary);text-decoration:none;font-size:.875rem;transition:color .3s}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{margin-top:2rem;padding-top:2rem;border-top:1px solid var(--border);text-align:center}
.footer-bottom p{color:var(--text-muted);font-size:.875rem}
.articles-page{padding:6rem 0 3rem}
.articles-header{text-align:center;margin-bottom:3rem}
.articles-header h1{font-size:2rem;font-weight:700;margin-bottom:1rem}
@media(min-width:768px){.articles-header h1{font-size:2.5rem}}
.articles-header p{color:var(--text-secondary);font-size:1.125rem}
.category-filters{display:flex;flex-wrap:wrap;justify-content:center;gap:.75rem;margin-bottom:3rem}
.category-btn{padding:.5rem 1rem;border-radius:9999px;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .3s;border:none;background:var(--border);color:var(--text-secondary)}
.category-btn:hover{background:rgba(45,58,79,1);color:var(--text-primary)}
.category-btn.active{background:linear-gradient(135deg,var(--accent),var(--accent-secondary));color:var(--bg-primary)}
.articles-grid{display:grid;gap:1.5rem}
@media(min-width:768px){.articles-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.articles-grid{grid-template-columns:repeat(3,1fr)}}
.article-card{display:block;padding:1.5rem;text-decoration:none;color:inherit}
.article-category{display:inline-block;padding:.25rem .75rem;border-radius:9999px;background:rgba(0,212,170,.1);color:var(--accent);font-size:.75rem;font-weight:500;margin-bottom:.75rem}
.article-card h2{font-size:1.25rem;font-weight:600;margin-bottom:.75rem;transition:color .3s}
.article-card:hover h2{color:var(--accent)}
.article-card p{color:var(--text-secondary);font-size:.875rem;margin-bottom:1rem}
.article-meta{display:flex;font-size:.75rem;color:var(--text-muted)}
.article-meta-left{display:flex;gap:1rem}
.article-detail{padding:6rem 0 3rem}
.article-back{display:inline-flex;align-items:center;gap:.5rem;color:var(--text-secondary);text-decoration:none;margin-bottom:2rem;transition:color .3s}
.article-back:hover{color:var(--accent)}
.article-content{padding:2rem}
@media(min-width:768px){.article-content{padding:3rem}}
.article-header{margin-bottom:2rem;padding-bottom:2rem;border-bottom:1px solid var(--border)}
.article-header h1{font-size:1.875rem;font-weight:700;margin-bottom:1rem}
@media(min-width:768px){.article-header h1{font-size:2.25rem}}
.article-header .excerpt{color:var(--text-secondary);font-size:1.125rem}
.article-body{line-height:1.8}
.article-body h2{font-size:1.5rem;font-weight:600;margin:2rem 0 1rem;color:var(--text-primary)}
.article-body h3{font-size:1.25rem;font-weight:600;margin:1.5rem 0 .75rem;color:var(--text-primary)}
.article-body p{color:var(--text-secondary);margin-bottom:1rem}
.article-body ul,.article-body ol{color:var(--text-secondary);margin:1rem 0;padding-left:1.5rem}
.article-body li{margin-bottom:.5rem}
.article-body strong{color:var(--text-primary)}
.article-body code{background:var(--border);color:var(--accent);padding:.125rem .375rem;border-radius:.25rem;font-size:.875em}
.article-body a{color:var(--accent);text-decoration:none}
.article-body a:hover{text-decoration:underline}
.help-section{text-align:center;margin-top:3rem}
.help-section h3{font-size:1.25rem;font-weight:600;margin-bottom:1rem}
.help-section p{color:var(--text-secondary);margin-bottom:1.5rem}