.main{
  padding-top: 80px;
}
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    background: url('https://cdn.tradingtop.com/public/images/banner.png') center /cover;
}
.hero-section .hero-description{
   font-size: 56px;
   margin-top:50px;
}
.hero-section .ai-btn{
   font-size: 56px;
   border-radius: 40px;
   color: var(--text-color);
   font-size: 32px;
   width: 174px;
   height: 80px;
   line-height: 80px;
   margin-top: 40px;
   background-origin: border-box;
   background-clip: content-box, border-box;
   border: 2px solid transparent;
   background-image: var(--gradient-bg),
   linear-gradient(93deg, rgba(56, 255, 255, 1), rgba(171, 86, 249, 1), rgba(8, 30, 208, 1), rgba(3, 226, 251, 1));
}

.hero-section h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.welcome-section, .app-download{
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
  margin-top: 100px;
  margin-bottom: 80px;
}
.welcome-section h2, .app-download h3{
  font-size: 64px;
}
.welcome-section p, .app-download p{
  font-size: 20px;
  color: var(--gray-color);
}

.app-download button{
  font-size: 28px;
  width: 278px;
  height: 80px;
  line-height: 80px;
  margin-top: 40px;
  border-radius: 40px;
  background-origin: border-box;
  background-clip: content-box, border-box;
  border: 2px solid transparent;
  background-image: var(--gradient-bg),
  linear-gradient(93deg, rgba(56, 255, 255, 1), rgba(171, 86, 249, 1), rgba(8, 30, 208, 1), rgba(3, 226, 251, 1));
}

.feature-card {
  max-width: 1400px;
  display: flex;
  border-radius: 20px;
  padding: 2rem;
  margin: 2rem auto;
  margin-bottom: 100px;
}
.feature-left{
  width: 50%;
}
.feature-right{
  width: 50%;
}

.feature-left img{
  width: 100%;
}
.feature-right img{
  width: 100%;
}

.feature-content {
  width: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.5rem;
  padding: 0 2rem;
}
.feature-content h3{
  font-size: 66px;
}
.feature-content p{
  font-size: 28px;
  color: var(--gray-color);
}

.feature-content img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}

.feature-content button{
  width: 298px;
  height: 80px;
  line-height: 80px;
  font-size: 32px;
  border: 2px solid transparent;
  border-radius: 40px;
  background-origin: border-box;
  background-clip: content-box, border-box;
  background-image: linear-gradient(#000, #000),
  linear-gradient(93deg, rgba(56, 255, 255, 1), rgba(171, 86, 249, 1), rgba(8, 30, 208, 1), rgba(3, 226, 251, 1));
}
.feature-card:nth-child(2n){
  flex-direction: row-reverse;
}

button {
    border: none;
    border-radius: 20px;
    background: var(--gradient-bg);
    color: var(--text-color);
    cursor: pointer;
    transition: transform 0.3s;
}

button:hover {
    transform: translateY(-2px);
}
.tradingtopai{
  width: 890px;
  margin-top: -80px;
}
@media (max-width: 768px) {
  .tradingtopai{
    display: none;
  }
  .main{
    padding-top: 60px;
  }
  .hero-section {
    background: url('https://cdn.tradingtop.com/public/images/mobile/home.png') center no-repeat;
    min-height: auto;
    height: 260px;
}
  .hero-section h1 {
      font-size: 2.5rem;
  }
  .hero-section .hero-description{
    font-size: 18px;
    margin-top: 90px;
  }
  .hero-section .ai-btn{
    width: 78px;
    height: 36px;
    line-height: 36px;
    font-size: 15px;
    margin-top: 20px;
  }
  .welcome-section, .app-download{
    margin-top: 30px;
    margin-bottom: 30px;
  }
  .feature-content{
    padding: 0;
    min-height: 250px;
  }
  .feature-card {
      margin: 1rem;
  }
  .feature-card{
    display: block;
  }
  .feature-content, .feature-left{
    width: 100%;
  }
  .welcome-section h2, .app-download h3{
    font-size: 24px;
  }
  .feature-content h3{
    font-size: 24px;
  }
  .feature-content p{
    font-size: 14px;
  }
  .feature-content button{
    font-size: 14px;
    width: 80%;
    margin: auto;
    height: 60px;
    line-height: 60px;
  }
  .welcome-section p, .app-download p{
    font-size: 14px;
    padding: 0 10px;
  }
  .nav-container .logo img{
    width: 100px;
  }
}