*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html{
  scroll-behavior: smooth;
}
body{
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: #0a0c0f;
  color: #eef2f6;
  line-height: 1.5;
  overflow-x: hidden;
}
.container{
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.bg-glow{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 30%, rgba(0, 180, 255, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 80% 70%, rgba(160, 80, 255, 0.08) 0%, transparent 40%);
  pointer-events: none;
  z-index: 0;
}
.navbar{
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px);
  background: rgba(10, 12, 15, 0.75);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 12px 0;
}
.nav-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.logo-area{
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-icon{
  height: 34px;
  width: auto;
  border-radius: 10px;
  object-fit: cover;
  border: 1.5px solid rgba(0, 200, 255, 0.5);
  box-shadow: 0 0 16px rgba(0, 200, 255, 0.25);
}
.logo-text{
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #fff, #aad0ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-badge{
  background: linear-gradient(135deg, #00c6ff, #0072ff);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 30px;
  color: #fff;
  letter-spacing: 0.3px;
  margin-left: 4px;
  box-shadow: 0 0 12px #0072ff66;
}
.nav-links{
  display: flex;
  gap: 26px;
  align-items: center;
  flex-wrap: wrap;
}
.nav-links a{
  color: #cdd9e9;
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: 0.2s;
  white-space: nowrap;
}
.nav-links a:hover{
  color: #fff;
  text-shadow: 0 0 12px #00c6ff;
}
.nav-cta{
  background: linear-gradient(135deg, #00c6ff, #0072ff);
  padding: 10px 22px;
  border-radius: 40px;
  font-weight: 700;
  color: #fff !important;
  box-shadow: 0 8px 20px -6px #0072ff;
  transition: 0.2s;
}
.nav-cta:hover{
  transform: scale(1.02);
  box-shadow: 0 10px 28px -4px #00a6ff;
}
.hero{
  position: relative;
  z-index: 2;
  padding: 70px 0 60px;
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-left{
  flex: 1 1 350px;
}
.version-tag{
  display: inline-block;
  background: rgba(0, 198, 255, 0.12);
  border: 1px solid rgba(0, 198, 255, 0.3);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  color: #7fd6ff;
  letter-spacing: 0.4px;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}
.hero-title{
  font-size: clamp(42px, 7vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 18px;
}
.gradient-text{
  background: linear-gradient(120deg, #ffffff, #8ad0ff, #c27aff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc{
  font-size: 18px;
  color: #9fb0c5;
  max-width: 500px;
  margin-bottom: 32px;
}
.hero-buttons{
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.btn-primary{
  background: linear-gradient(135deg, #00c6ff, #0072ff);
  border: none;
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 16px;
  color: #fff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 12px 30px -8px #0072ff;
  transition: 0.2s;
}
.btn-primary:hover{
  transform: translateY(-2px);
  box-shadow: 0 18px 36px -8px #00a2ff;
}
.btn-secondary{
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 600;
  color: #eef2f6;
  text-decoration: none;
  transition: 0.2s;
  backdrop-filter: blur(8px);
}
.btn-secondary:hover{
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(0, 198, 255, 0.5);
}
.hero-right{
  flex: 1 1 350px;
  display: flex;
  justify-content: center;
  position: relative;
}
.hero-preview{
  width: 100%;
  max-width: 480px;
  border-radius: 24px;
  box-shadow: 0 30px 60px -20px #000000cc, 0 0 0 1px rgba(255, 255, 255, 0.06) inset;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: 0.3s;
  display: block;
}
.hero-preview:hover{
  transform: scale(1.01);
  box-shadow: 0 40px 70px -20px #0066ff50;
}
.section{
  position: relative;
  z-index: 2;
  padding: 70px 0;
  scroll-margin-top: 90px;
}
.section-header{
  text-align: center;
  margin-bottom: 48px;
}
.section-tag{
  color: #5bb8ff;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-title{
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(135deg, #ffffff 30%, #b8d6ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-sub{
  color: #8d9eb5;
  max-width: 600px;
  margin: 16px auto 0;
  font-size: 16px;
}
.features-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.feature-card{
  background: rgba(20, 25, 33, 0.65);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 24px;
  padding: 28px 22px;
  transition: 0.25s;
  box-shadow: 0 8px 24px -12px #00000080;
}
.feature-card:hover{
  background: rgba(28, 35, 46, 0.8);
  border-color: rgba(0, 180, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 36px -16px #0072ff60;
}
.feature-icon{
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #00c6ff22, #0072ff22);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
  border: 1px solid rgba(0, 198, 255, 0.25);
}
.feature-card h3{
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p{
  color: #9aabbf;
  font-size: 15px;
}
.gallery-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.gallery-item{
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: #10141b;
  transition: 0.25s;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gallery-item img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: 0.3s;
  display: block;
}
.gallery-item:hover{
  border-color: rgba(0, 200, 255, 0.5);
  transform: scale(1.02);
  box-shadow: 0 16px 30px -14px #0072ffaa;
}
.gallery-item:hover img{
  transform: scale(1.05);
}
.version-block{
  display: flex;
  gap: 40px;
  align-items: center;
  flex-wrap: wrap;
  background: rgba(16, 22, 30, 0.6);
  backdrop-filter: blur(16px);
  border-radius: 40px;
  padding: 40px 48px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: 20px;
}
.version-left{
  flex: 1 1 280px;
}
.version-left h2{
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 16px;
}
.version-badge{
  display: inline-block;
  background: #00c6ff22;
  border: 1px solid #00c6ff66;
  padding: 4px 14px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 20px;
  color: #7fd6ff;
}
.version-list{
  list-style: none;
  margin-top: 18px;
}
.version-list li{
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 8px 0;
  color: #cbd5e6;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.version-list li span{
  color: #00c6ff;
  font-weight: 700;
}
.version-right{
  flex: 1 1 260px;
  display: flex;
  justify-content: center;
}
.version-right img{
  width: 100%;
  max-width: 340px;
  border-radius: 24px;
  box-shadow: 0 20px 40px -16px #000000;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: block;
}
.tutorial-steps{
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 960px;
  margin: 0 auto;
}
.tutorial-step{
  display: flex;
  gap: 28px;
  align-items: center;
  background: rgba(20, 25, 33, 0.55);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 28px;
  padding: 32px;
  transition: 0.25s;
}
.tutorial-step:hover{
  border-color: rgba(0, 180, 255, 0.25);
  background: rgba(28, 35, 46, 0.8);
  box-shadow: 0 20px 36px -20px #0072ff40;
}
.tutorial-step.reverse{
  flex-direction: row-reverse;
}
.step-number{
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, #00c6ff, #0072ff);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 8px 20px -6px #0072ff;
}
.step-content{
  flex: 1 1 280px;
}
.step-content h3{
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #ffffff;
}
.step-content p{
  color: #a0b2c8;
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 8px;
}
.step-content .step-tip{
  display: inline-block;
  background: #00c6ff12;
  border-left: 3px solid #00c6ff;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 14px;
  color: #7fd6ff;
  margin-top: 6px;
}
.step-img{
  flex: 1 1 240px;
  display: flex;
  justify-content: center;
}
.step-img img{
  width: 100%;
  max-width: 320px;
  border-radius: 20px;
  box-shadow: 0 16px 36px -20px #000000;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: block;
}
.faq-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
}
.faq-item{
  background: rgba(20, 25, 33, 0.6);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  padding: 24px;
  transition: 0.25s;
}
.faq-item:hover{
  border-color: rgba(0, 180, 255, 0.25);
  background: rgba(28, 35, 46, 0.8);
}
.faq-item h3{
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: #d6e5ff;
}
.faq-item h3 span{
  color: #00c6ff;
  font-size: 20px;
  line-height: 1.2;
}
.faq-item p{
  color: #a0b2c8;
  font-size: 15px;
  line-height: 1.6;
}
.review-block{
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  background: rgba(16, 22, 30, 0.5);
  backdrop-filter: blur(12px);
  border-radius: 32px;
  padding: 36px 32px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  margin-bottom: 20px;
  align-items: center;
}
.review-block.reverse{
  flex-direction: row-reverse;
}
.review-text{
  flex: 1 1 300px;
}
.review-text h3{
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #ffffff;
}
.review-text p{
  color: #a0b2c8;
  font-size: 15px;
  margin-bottom: 16px;
  line-height: 1.7;
}
.review-tag{
  display: inline-block;
  background: #00c6ff15;
  border: 1px solid #00c6ff40;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
  color: #7fd6ff;
  font-weight: 500;
  margin-right: 8px;
  margin-bottom: 8px;
}
.review-img{
  flex: 1 1 280px;
  display: flex;
  justify-content: center;
}
.review-img img{
  width: 100%;
  max-width: 380px;
  border-radius: 20px;
  box-shadow: 0 20px 40px -20px #000000;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: block;
}
.comments-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 22px;
  max-width: 1100px;
  margin: 0 auto;
}
.comment-card{
  background: rgba(20, 25, 33, 0.65);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 24px;
  padding: 24px;
  transition: 0.25s;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.comment-card:hover{
  border-color: rgba(0, 180, 255, 0.3);
  background: rgba(28, 35, 46, 0.85);
  transform: translateY(-3px);
  box-shadow: 0 18px 34px -18px #0072ff50;
}
.comment-head{
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.comment-avatar{
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
  border: 2px solid rgba(255, 255, 255, 0.1);
}
.avatar-1{ background: linear-gradient(135deg, #00c6ff, #0072ff); }
.avatar-2{ background: linear-gradient(135deg, #ff8a5b, #ff4d6d); }
.avatar-3{ background: linear-gradient(135deg, #a855f7, #6d28d9); }
.avatar-4{ background: linear-gradient(135deg, #10b981, #047857); }
.avatar-5{ background: linear-gradient(135deg, #f59e0b, #d97706); }
.avatar-6{ background: linear-gradient(135deg, #ec4899, #be185d); }
.comment-meta{
  flex: 1 1 120px;
}
.comment-name{
  font-weight: 700;
  font-size: 15px;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.comment-badge{
  font-size: 11px;
  font-weight: 600;
  background: #00c6ff22;
  border: 1px solid #00c6ff55;
  color: #7fd6ff;
  padding: 1px 8px;
  border-radius: 20px;
}
.comment-date{
  font-size: 12px;
  color: #6f829c;
  margin-top: 2px;
}
.comment-stars{
  color: #fbbf24;
  font-size: 14px;
  letter-spacing: 1px;
}
.comment-body{
  color: #b3c2d6;
  font-size: 15px;
  line-height: 1.7;
}
.comment-actions{
  display: flex;
  gap: 18px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.comment-actions span{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: #7d8fa8;
  transition: 0.2s;
  user-select: none;
}
.comment-actions span:hover{
  color: #00c6ff;
  text-shadow: 0 0 10px #00c6ff66;
}
.download-area{
  background: linear-gradient(135deg, #0a1422 0%, #0d1a2b 100%);
  border-radius: 48px;
  padding: 56px 48px;
  border: 1px solid rgba(0, 198, 255, 0.2);
  box-shadow: 0 30px 60px -30px #000000, 0 0 0 1px #ffffff08 inset;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.download-area::before{
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 140%;
  height: 140%;
  background: radial-gradient(circle at 30% 40%, #0072ff15, transparent 60%);
  pointer-events: none;
}
.download-title{
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -1px;
}
.download-desc{
  color: #a2b6d0;
  margin-bottom: 32px;
  font-size: 16px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}
.download-btn{
  background: linear-gradient(135deg, #00c6ff, #0072ff);
  border: none;
  padding: 18px 48px;
  border-radius: 60px;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 18px 40px -12px #0072ff;
  transition: 0.2s;
  position: relative;
  z-index: 2;
}
.download-btn:hover{
  transform: scale(1.02);
  box-shadow: 0 24px 50px -12px #0099ff;
}
.mirror-note{
  margin-top: 20px;
  font-size: 14px;
  color: #6c7e96;
}
.mirror-note a{
  color: #6fb9ff;
  text-decoration: none;
  word-break: break-all;
}
.footer{
  padding: 40px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  color: #677a92;
  font-size: 13px;
  position: relative;
  z-index: 2;
}
.footer a{
  color: #8dc2ff;
  text-decoration: none;
}
.footer-meta{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 22px;
  margin-top: 14px;
  align-items: center;
  font-size: 12px;
  color: #5e7188;
}
.footer-meta span{
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-meta .dot{
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #3a4c62;
}
@media (max-width: 1024px){
  .gallery-grid{
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 900px){
  .nav-links{
    gap: 18px;
  }
  .nav-links a{
    font-size: 14px;
  }
}
@media (max-width: 768px){
  .nav-inner{
    justify-content: center;
  }
  .nav-links{
    justify-content: center;
    gap: 14px 20px;
    width: 100%;
    padding-top: 8px;
  }
  .nav-cta{
    padding: 8px 18px;
    font-size: 14px;
  }
  .hero{
    padding: 40px 0;
    text-align: center;
  }
  .hero-left{
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .hero-desc{
    text-align: center;
  }
  .hero-title{
    font-size: 42px;
  }
  .hero-buttons{
    justify-content: center;
  }
  .gallery-grid{
    grid-template-columns: repeat(2, 1fr);
  }
  .version-block{
    padding: 30px 24px;
  }
  .download-area{
    padding: 40px 24px;
  }
  .section-title{
    font-size: 28px;
  }
  .download-title{
    font-size: 30px;
  }
  .review-block,.review-block.reverse{
    flex-direction: column;
    padding: 28px 20px;
    text-align: center;
  }
  .review-tag{
    margin-right: 4px;
  }
  .section{
    scroll-margin-top: 140px;
  }
  .faq-grid{
    grid-template-columns: 1fr;
  }
  .tutorial-step,.tutorial-step.reverse{
    flex-direction: column;
    text-align: center;
    padding: 26px 20px;
  }
  .step-number{
    margin-bottom: 6px;
  }
  .step-img img{
    max-width: 260px;
  }
  .comments-grid{
    grid-template-columns: 1fr;
  }
  .footer-meta{
    flex-direction: column;
    gap: 6px;
  }
  .footer-meta .dot{
    display: none;
  }
}
@media (max-width: 480px){
  .logo-text{
    font-size: 18px;
  }
  .logo-icon{
    height: 28px;
  }
  .hero-title{
    font-size: 34px;
  }
  .hero-buttons .btn-primary,.hero-buttons .btn-secondary{
    width: 100%;
    justify-content: center;
  }
  .gallery-grid{
    grid-template-columns: 1fr;
  }
  .download-btn{
    font-size: 16px;
    padding: 14px 28px;
  }
  .download-area{
    padding: 30px 20px;
  }
  .nav-links{
    gap: 10px 16px;
  }
  .nav-links a{
    font-size: 13px;
  }
  .nav-cta{
    padding: 6px 16px;
    font-size: 13px;
  }
  .section{
    scroll-margin-top: 170px;
  }
  .step-content h3{
    font-size: 19px;
  }
}