/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* 全局样式 */
html,
body {
    margin: 0;
    padding: 0;
    color: #1D2129;
    background-color: #ffffff;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

a:active{
  text-decoration: none;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
}

.btn {
    display: inline-block;
    padding: 8px 17px;
    border-radius: 4px;
    cursor: pointer;
}

.btn-primary {
    background-color: #165DFF;
    color: white;
    background: linear-gradient(135deg, #1764FF 0%, #538CFF 100%);
}


.btn-outline {
    background-color: transparent;
    color: #165DFF;
    border: 2px solid #165DFF;
}

.btn-outline:hover {
    background-color: #165DFF;
    color: white;
}


/* 导航栏样式 */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 30px 0;
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: solid 1px rgba(255, 255, 255, 0.3);
}

#navbar.scrolled {
    background: linear-gradient(124deg, #0B1319 0%, #262C31 56%, #101B24 100%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    color: white;
    font-weight: 700;
    font-size: 1.4rem;
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

.nav-links {
    display: flex;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: white;
    font-size: 20px;
}

.nav-links li {
    position: relative;
    margin-left: 80px;
    display: flex;
    align-items: center;
    gap: 11px;
}

.nav-links li.active::after {
    display: block;
    content: '';
    position: absolute;
    width: 16px;
    height: 3px;
    background: #FFFFFF;
    left: calc(50% - 6px);
    transform: translateX(-50%);
    bottom: -5px;

}

.nav-links li.active::before {
    display: block;
    content: '';
    position: absolute;
    width: 5px;
    height: 3px;
    background: #FFFFFF;
    left: calc(50% + 10px);
    transform: translateX(-50%);
    bottom: -5px;
}

.nav-links li:last-child {
    margin-left: 38px;
}

.nav-links li:first-child {
    margin-left: 0;
}


.menu-icon {
    display: none;
}





/* 页脚 */
footer {
    background-color: #111111;
    color: white;
    padding: 60px 0 70px;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-logo {
    margin-bottom: 23px;
}


.footer-desc {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.footer-social {
    margin-top: 21px;
    font-size: 36px;
    line-height: 50px;
}

.footer-title {
    font-size: 24px;
    line-height: 39px;
    font-weight: 500;
    margin-bottom: 40px;
}

.footer-title>div {
    font-size: 22px;
    line-height: 39px;
    font-weight: 400;
}

.footer-links a {
    display: block;
    margin-bottom: 27px;
    font-size: 18px;
    line-height: 31px;
    color: rgba(255, 255, 255, 0.8);
}

.footer-links a:hover {
    color: white;
}

.footer-contact {
    padding-left: 56px;
    border-left: solid 3px rgba(231, 224, 224, 0.5);
}



.footer-bottom {
    border: 1px solid #454749;
    padding: 27px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: space-around;
    font-size: 22px;

}


.footer-bottom>.info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-grid-moblie {
    display: none;
}













/* 动画关键帧定义 */
@keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translate3d(0, 40px, 0);
    }
  
    to {
      opacity: 1;
      transform: translate3d(0, 0, 0);
    }
  }
  
  @keyframes fadeInLeft {
    from {
      opacity: 0;
      transform: translate3d(-40px, 0, 0);
    }
  
    to {
      opacity: 1;
      transform: translate3d(0, 0, 0);
    }
  }
  
  @keyframes fadeInRight {
    from {
      opacity: 0;
      transform: translate3d(40px, 0, 0);
    }
  
    to {
      opacity: 1;
      transform: translate3d(0, 0, 0);
    }
  }
  
  @keyframes fadeIn {
    from {
      opacity: 0;
    }
  
    to {
      opacity: 1;
    }
  }
  
  @keyframes zoomIn {
    from {
      opacity: 0;
      transform: scale3d(0.8, 0.8, 0.8);
    }
  
    to {
      opacity: 1;
      transform: scale3d(1, 1, 1);
    }
  }
  
  /* 动画基础类 */
  .animate-on-scroll {
    opacity: 0;
    animation-duration: 0.8s;
    animation-fill-mode: both;
    animation-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
  
  /* 动画延迟类 */
  .delay-100 {
    animation-delay: 0.1s;
  }
  
  .delay-200 {
    animation-delay: 0.2s;
  }
  
  .delay-300 {
    animation-delay: 0.3s;
  }
  
  .delay-400 {
    animation-delay: 0.4s;
  }
  
  .delay-500 {
    animation-delay: 0.5s;
  }
  
  /* 动画类型类 */
  .fade-in-up {
    animation-name: fadeInUp;
  }
  
  .fade-in-left {
    animation-name: fadeInLeft;
  }
  
  .fade-in-right {
    animation-name: fadeInRight;
  }
  
  .fade-in {
    animation-name: fadeIn;
  }
  
  .zoom-in {
    animation-name: zoomIn;
  }
  
  /* 激活动画的类 */
  .animate-active {
    opacity: 1;
  }