*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
body{
  background:#0b0f17;
  background-image:radial-gradient(circle at 20% 30%,rgba(0,180,255,0.08) 0%,transparent 40%),
                   radial-gradient(circle at 90% 70%,rgba(160,0,255,0.06) 0%,transparent 45%);
  color:#e9f1fc;
  line-height:1.5;
  padding-bottom:2rem;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  scroll-behavior:smooth;
}
img{max-width:100%;height:auto;}
.container{max-width:1300px;margin:0 auto;padding:0 1.5rem;}
.navbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:1rem 0 0.8rem;
  border-bottom:1px solid rgba(64,164,255,0.15);
  flex-wrap:wrap;gap:0.8rem;
}
.logo-area{display:flex;align-items:center;gap:12px;}
.logo-area img{
  width:36px;height:36px;border-radius:10px;object-fit:cover;
  box-shadow:0 0 15px rgba(0,160,255,0.5);
  border:1px solid rgba(100,200,255,0.5);
}
.logo-text h1{
  font-size:1.5rem;font-weight:800;letter-spacing:1px;
  background:linear-gradient(135deg,#ffffff,#7ac9ff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1.2;
}
.logo-text .badge{
  font-size:0.75rem;background:#1d9bf0;color:#000;font-weight:700;
  padding:0.15rem 0.6rem;border-radius:20px;display:inline-block;
  margin-left:8px;vertical-align:middle;
  box-shadow:0 0 15px #1d9bf0;
}
.logo-sub{font-size:0.8rem;color:#7f9fc7;}
.nav-links{display:flex;gap:1.5rem;font-weight:500;align-items:center;flex-wrap:wrap;}
.nav-links a{
  color:#cbd5e6;text-decoration:none;font-size:0.95rem;transition:all 0.2s;
  border-bottom:2px solid transparent;padding-bottom:4px;
}
.nav-links a:hover{color:#69c6ff;border-bottom-color:#69c6ff;}
.download-btn-nav{
  background:linear-gradient(135deg,#0066ff,#00a6ff);
  border:none;color:white;font-weight:700;padding:0.6rem 1.4rem;
  border-radius:30px;font-size:0.95rem;cursor:pointer;text-decoration:none;
  display:inline-flex;align-items:center;gap:6px;
  box-shadow:0 0 20px rgba(0,120,255,0.5);
  transition:transform 0.1s,box-shadow 0.2s;
  border:1px solid rgba(255,255,255,0.3);
}
.download-btn-nav:hover{transform:scale(1.02);box-shadow:0 0 30px #0088ff;}

.hero-banner{
  margin:2rem 0 3rem;border-radius:36px;overflow:hidden;
  box-shadow:0 25px 40px rgba(0,0,0,0.8),0 0 0 1px rgba(0,160,255,0.3);
  position:relative;background:#0d1622;
}
.hero-banner .hero-img{
  width:100%;display:block;aspect-ratio:16/8;object-fit:cover;
  transition:transform 0.4s ease;
}
.hero-banner:hover .hero-img{transform:scale(1.01);}
.banner-overlay{
  position:absolute;bottom:0;left:0;right:0;
  background:linear-gradient(to top,rgba(0,15,30,0.96) 0%,rgba(0,15,30,0.55) 55%,transparent 100%);
  padding:3rem 2rem 1.6rem;
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:1rem;
}
.banner-text{max-width:620px;}
.banner-text h2{
  font-size:2rem;font-weight:800;color:#fff;
  text-shadow:0 2px 10px rgba(0,0,0,0.8);margin-bottom:0.4rem;
}
.banner-text p{color:#b8d6f0;font-size:1rem;text-shadow:0 1px 6px #000;}
.banner-btn{
  background:linear-gradient(135deg,#0066ff,#00b2ff);
  border:none;color:white;font-weight:700;padding:0.9rem 2rem;
  border-radius:60px;font-size:1.05rem;text-decoration:none;
  display:inline-flex;align-items:center;gap:10px;
  box-shadow:0 0 30px rgba(0,150,255,0.7);
  border:1px solid rgba(255,255,255,0.4);
  transition:all 0.2s;white-space:nowrap;
}
.banner-btn:hover{transform:scale(1.03);box-shadow:0 0 45px #00a2ff;}

.section-title{
  font-size:2rem;font-weight:800;margin-bottom:0.5rem;
  display:flex;align-items:center;gap:12px;
}
.section-title span{
  background:linear-gradient(135deg,#00b2ff,#ae7dff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-sub{
  color:#8ba0bb;font-size:1rem;margin-bottom:2rem;
  border-left:4px solid #00a6ff;padding-left:1rem;
}

.feature-showcase{display:flex;flex-direction:column;gap:3rem;margin-bottom:4rem;}
.feature-row{display:flex;align-items:center;gap:2.5rem;flex-wrap:wrap;}
.feature-row.reverse{flex-direction:row-reverse;}
.feature-text{flex:1 1 300px;}
.feature-img{flex:1 1 300px;display:flex;justify-content:center;}
.feature-img img{
  width:100%;max-width:440px;border-radius:28px;
  border:1px solid rgba(0,160,255,0.4);
  box-shadow:0 15px 30px rgba(0,0,0,0.7);
  object-fit:cover;aspect-ratio:16/10;transition:all 0.25s;
}
.feature-img img:hover{
  transform:scale(1.02);border-color:#3a9eff;
  box-shadow:0 0 35px rgba(0,150,255,0.6);
}
.feature-text h3{
  font-size:1.7rem;font-weight:800;margin-bottom:1rem;
  background:linear-gradient(135deg,#ffffff,#9ad4ff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.feature-text p{color:#a3b8d0;font-size:1.05rem;line-height:1.7;margin-bottom:1.2rem;}
.pill{
  background:#1d3f5e;padding:0.2rem 1rem;border-radius:40px;
  color:#aad0ff;font-size:0.8rem;display:inline-block;
}

.features-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:1.8rem;margin-bottom:3.5rem;
}
.feature-card{
  background:rgba(16,26,40,0.7);backdrop-filter:blur(8px);
  border:1px solid rgba(60,130,210,0.3);border-radius:28px;
  padding:1.8rem 1.5rem;transition:all 0.25s;
  box-shadow:0 10px 20px rgba(0,0,0,0.5);
}
.feature-card:hover{
  border-color:#3a9eff;box-shadow:0 0 30px rgba(0,150,255,0.3);
  transform:translateY(-4px);background:rgba(22,38,60,0.8);
}
.feature-icon{
  width:55px;height:55px;
  background:linear-gradient(145deg,#0f2b47,#003366);
  border-radius:18px;display:flex;align-items:center;justify-content:center;
  margin-bottom:1.5rem;border:1px solid #2a7fbf;font-size:2rem;
}
.feature-card h3{font-size:1.35rem;font-weight:700;margin-bottom:0.6rem;color:#e2f0ff;}
.feature-card p{color:#97aec9;font-size:0.95rem;line-height:1.6;}

.gallery-section{margin-bottom:3.5rem;}
.marquee-wrapper{
  position:relative;width:100%;overflow:hidden;border-radius:24px;
  mask-image:linear-gradient(to right,transparent 0%,black 5%,black 95%,transparent 100%);
  -webkit-mask-image:linear-gradient(to right,transparent 0%,black 5%,black 95%,transparent 100%);
  padding:0.5rem 0;
}
.marquee-track{
  display:flex;gap:1.2rem;width:max-content;
  animation:marqueeScroll 34s linear infinite;will-change:transform;
}
.marquee-wrapper:hover .marquee-track{animation-play-state:paused;}
.marquee-track img{
  width:180px;height:320px;flex-shrink:0;object-fit:cover;
  border-radius:20px;border:1px solid #1f4a70;background:#0b1420;
  box-shadow:0 8px 18px rgba(0,0,0,0.6);transition:all 0.25s;
}
.marquee-track img:hover{
  border-color:#4da6ff;box-shadow:0 0 28px #0077ff;transform:scale(1.03);
}
@keyframes marqueeScroll{
  0%{transform:translateX(0);}
  100%{transform:translateX(-50%);}
}

.history-versions{
  background:rgba(10,20,35,0.8);border-radius:32px;padding:2rem;
  border:1px solid #1e476b;margin-bottom:3.5rem;
}
.history-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:1.5rem;margin-top:1.5rem;
}
.history-card{
  background:#0e1a28;border-radius:20px;padding:1.5rem 1.2rem;
  border:1px solid #1f405e;text-align:center;transition:all 0.2s;
}
.history-card:hover{border-color:#3a9eff;box-shadow:0 0 25px rgba(0,150,255,0.2);}
.version-name{font-size:1.2rem;font-weight:800;color:#8fc9ff;margin-bottom:0.5rem;}
.version-desc{font-size:0.88rem;color:#6f8fae;margin-bottom:1rem;line-height:1.5;}
.version-btn{
  display:inline-block;background:rgba(0,102,255,0.2);
  border:1px solid #2a6db0;color:#b8dcff;padding:0.5rem 1.5rem;
  border-radius:40px;text-decoration:none;font-size:0.9rem;
  font-weight:600;transition:all 0.2s;
}
.version-btn:hover{background:#0066ff;color:#fff;border-color:#0066ff;box-shadow:0 0 15px #0066ff;}

.tutorial-section{margin-bottom:3.5rem;}
.tutorial-steps{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:1.8rem;margin-top:1.5rem;
}
.step-card{
  background:rgba(16,30,48,0.7);border-radius:24px;padding:1.8rem 1.5rem;
  border:1px solid #1f4765;position:relative;
}
.step-num{
  font-size:2.5rem;font-weight:900;color:#1d5c8f;
  opacity:0.7;margin-bottom:0.5rem;
}
.step-card h4{font-size:1.2rem;color:#c3e0ff;margin-bottom:0.7rem;}
.step-card p{color:#8faac7;font-size:0.95rem;line-height:1.6;}

.reviews-section{margin-bottom:3.5rem;}
.reviews-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:1.8rem;margin-top:1.5rem;
}
.review-card{
  background:rgba(20,32,50,0.7);backdrop-filter:blur(6px);
  border-radius:26px;padding:1.8rem 1.5rem;border:1px solid #1f405e;
  transition:all 0.2s;
}
.review-card:hover{border-color:#3a9eff;box-shadow:0 0 25px rgba(0,150,255,0.2);}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:1rem;}
.review-avatar{
  width:48px;height:48px;border-radius:50%;
  background:linear-gradient(145deg,#1e3f5e,#0b1f33);
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;border:1px solid #2a6db0;flex-shrink:0;
}
.review-name{font-weight:700;color:#d4e9ff;}
.review-stars{color:#ffb347;font-size:0.9rem;letter-spacing:2px;}
.review-text{color:#a8c2dd;font-size:0.95rem;line-height:1.6;}

.faq-section{margin-bottom:3.5rem;}
.faq-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:1.5rem;margin-top:1.5rem;
}
.faq-card{
  background:rgba(18,30,46,0.8);border-radius:24px;padding:1.5rem 1.8rem;
  border:1px solid #1f405e;transition:all 0.2s;
}
.faq-card:hover{border-color:#3a9eff;box-shadow:0 0 25px rgba(0,150,255,0.15);}
.faq-card h4{
  font-size:1.12rem;color:#b6dbff;margin-bottom:0.8rem;
  display:flex;align-items:center;gap:8px;
}
.faq-card p{color:#90a9c5;font-size:0.95rem;line-height:1.6;}

.download-section{
  background:linear-gradient(145deg,#0b1b2c,#07101c);
  border-radius:48px;padding:3rem 2.5rem;border:1px solid #1d5c8f;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:2rem;margin-bottom:3rem;box-shadow:0 20px 35px rgba(0,0,0,0.7);
}
.download-text h2{font-size:2.1rem;font-weight:800;margin-bottom:0.5rem;}
.download-text p{color:#a2bedb;max-width:520px;}
.download-big-btn{
  background:linear-gradient(135deg,#0066ff,#00b2ff);
  padding:1.2rem 3rem;border-radius:60px;font-size:1.25rem;font-weight:800;
  text-decoration:none;color:white;display:inline-flex;align-items:center;gap:15px;
  box-shadow:0 0 40px #0066ff;border:1px solid rgba(255,255,255,0.3);
  transition:all 0.2s;letter-spacing:0.5px;white-space:nowrap;
}
.download-big-btn:hover{
  transform:scale(1.02);box-shadow:0 0 55px #00a2ff;
  background:linear-gradient(135deg,#1a7aff,#0099ff);
}

.related-searches{
  margin:2rem 0;padding:1.8rem 2rem;
  background:rgba(12,24,40,0.7);border-radius:28px;border:1px solid #1b3b58;
}
.related-title{
  font-size:1.1rem;font-weight:600;color:#9bb9da;
  margin-bottom:1rem;display:flex;align-items:center;gap:8px;
}
.search-tags{display:flex;flex-wrap:wrap;gap:0.8rem;}
.search-tags span{
  background:#102b42;color:#b3d4ff;padding:0.4rem 1.1rem;
  border-radius:40px;font-size:0.9rem;border:1px solid #1f4a70;
}

.footer{
  margin-top:3rem;padding-top:2rem;
  border-top:1px solid rgba(60,130,200,0.2);
  text-align:center;color:#6a85a3;font-size:0.9rem;
  display:flex;flex-wrap:wrap;justify-content:space-between;
  align-items:center;gap:1rem;
}
.footer a{color:#6fa6dc;text-decoration:none;}
.footer a:hover{color:#9fd0ff;}
.publish-time{
  font-size:0.82rem;color:#527a9e;background:#0c1c2c;
  padding:0.3rem 1rem;border-radius:30px;border:1px solid #1e3b53;
}

@media (max-width:1024px){
  .banner-text h2{font-size:1.7rem;}
  .feature-text h3{font-size:1.5rem;}
}
@media (max-width:768px){
  .navbar{flex-direction:column;align-items:flex-start;}
  .nav-links{gap:1rem;flex-wrap:wrap;width:100%;justify-content:flex-start;}
  .nav-links a{font-size:0.88rem;}
  .download-btn-nav{padding:0.45rem 1rem;font-size:0.85rem;}
  .banner-overlay{flex-direction:column;align-items:flex-start;padding:1.4rem 1.2rem;}
  .banner-text h2{font-size:1.3rem;}
  .banner-text p{font-size:0.85rem;}
  .banner-btn{font-size:0.9rem;padding:0.6rem 1.4rem;}
  .section-title{font-size:1.6rem;}
  .section-sub{font-size:0.9rem;}
  .feature-row{flex-direction:column !important;gap:1.5rem;}
  .feature-text h3{font-size:1.35rem;}
  .feature-text p{font-size:0.95rem;}
  .feature-img img{max-width:100%;}
  .features-grid{grid-template-columns:1fr;}
  .marquee-track img{width:140px;height:250px;}
  .history-grid{grid-template-columns:1fr 1fr;}
  .tutorial-steps{grid-template-columns:1fr;}
  .reviews-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .download-section{flex-direction:column;text-align:center;padding:2rem 1.5rem;}
  .download-text h2{font-size:1.55rem;}
  .download-big-btn{width:100%;justify-content:center;padding:1rem 1.5rem;font-size:1.1rem;}
  .related-searches{padding:1.2rem;}
  .search-tags span{font-size:0.8rem;padding:0.3rem 0.9rem;}
  .footer{flex-direction:column;gap:0.8rem;}
}
@media (max-width:480px){
  .container{padding:0 1rem;}
  .logo-text h1{font-size:1.25rem;}
  .logo-text .badge{font-size:0.65rem;padding:0.1rem 0.4rem;}
  .logo-area img{width:32px;height:32px;}
  .hero-banner{border-radius:20px;}
  .hero-banner .hero-img{aspect-ratio:4/3;}
  .banner-text h2{font-size:1.1rem;}
  .banner-text p{font-size:0.78rem;}
  .banner-btn{font-size:0.8rem;padding:0.5rem 1rem;}
  .marquee-track img{width:120px;height:210px;}
  .history-grid{grid-template-columns:1fr;}
  .step-num{font-size:2rem;}
  .download-text h2{font-size:1.3rem;}
}
section,.download-section,.related-searches{scroll-margin-top:20px;}