/* =======================================
   Footer 区域（无固定高度）
======================================= */
.footer-section {
  position: relative;
  color: #fff;
  background: #000;
}
.footer-section .bg {
  position: absolute;
  bottom: 100%;
  left: 0;
  width: 100%;
  display: flex;
}
.footer-section .bg img {
  width: 100%;
}
.footer-section .footer-top {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: center;
  gap: 10%;
}
.footer-section .footer-top .logo {
  flex: 0 0 auto;
  width: 170px;
}
.footer-section .footer-top .logo img {
  width: 100%;
  filter: brightness(0) invert(1);
}
.footer-section .footer-top .nav {
  flex: 1;
  display: flex;
justify-content: center;
margin-left: 10%;
  gap: 10%;
}
.footer-section .footer-top .nav a {
  color: #fff;
}
.footer-section .footer-top .nav a:hover {
  color: var(--allColor);
  text-decoration: underline;
}
.footer-section .footer-top .email {
  flex: 0 0 auto;
  min-width: 200px;
}
.footer-section .footer-top .email .tit {
  color: #fff;
  opacity: 0.5;
}
.footer-section .footer-top .email .link {
  color: #fff;
  margin-top: 10px;
}
.footer-section .footer-top .email .link:hover {
/*  color: var(--allColor);
  text-decoration: underline;*/
}
.footer-section .footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-section .footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
  transition: all 0.2s linear;
}
.footer-section .footer-bottom a:hover {
  color: var(--allColor);
  text-decoration: underline;
}
.footer-section .footer-bottom .c_l {
  flex: 0 0 auto;
}
.footer-section .footer-links {
  flex: 1;
  justify-content: center;
  display: flex;
  gap: 16px;
}
.footer-section .footer-links span:last-child {
  display: none;
}
.footer-section .share {
  flex: 0 0 auto;
  min-width: 200px;
  display: flex;
  gap: 16px;
}
.footer-section .share a {
  width: 36px;
  height: 36px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(255, 255, 255, 0.2);
  transition: all 0.3s linear;
}
.footer-section .share a:hover {
  background: #fff;
}
.footer-section .share a:hover img {
  filter: brightness(1);
  opacity: 1;
}
.footer-section .share a img {
  width: 50%;
  filter: brightness(0) invert(1);
  opacity: 0.6;
  transition: all 0.3s linear;
}
@media only screen and (max-width: 1600px) {
  .footer-section .qrcode-group {
    gap: 20px;
  }
  .footer-section .footer-top .logo {
    width: 140px;
  }
  .footer-section .form input {
    height: 60px;
  }
  .footer-section .form {
    width: 400px;
  }
  .footer-section .qrcode-item img {
    width: 120px;
    height: 120px;
  }
}
@media only screen and (max-width: 1366px) {
  .footer-section .form {
    width: 320px;
  }
  .footer-section .footer-top .logo {
    width: 100px;
  }
  .footer-section .qrcode-item img {
    width: 100px;
    height: 100px;
  }
}
@media only screen and (max-width: 768px) {
    .footer-section .footer-top .nav {
 
margin-left:  0%;
  gap: 10%;
}
  .footer-section .footer-col h4 {
    text-align: center;
  }
  .footer-section .footer-top .email{
      
      margin-top: 4vw;
  }
  .footer-section .share a{
      width: 30px;
      height: 30px;
  }
  .footer-section .footer-bottom .c_l{
      flex: 0 0 100%;
  }
  .footer-section .footer-top .logo {
    margin: auto;
  }
  .footer-section .footer-top .nav {
    flex: 0 0 100%;
    margin-top: 4vw;
  }
  .footer-section .footer-top .email {
    flex: 0 0 100%;
    text-align: center;
  }
  .footer-section .footer-bottom .c_l {
    order: 3;
  }
  .footer-section .share {
    flex: 0 0 100%;
    justify-content: center;
  }
  .footer-section .footer-links {
    flex: 0 0 100%;
    order: 2;
  }
  .footer-section .footer-top .email .tit {
    text-align: center;
  }
  .footer-section .footer-top .email .link {
    text-align: center;
    margin: auto;
  }
  .footer-section .form {
    width: 80%;
    margin-left: auto;
    margin-right: auto;
  }
  .footer-section .footer-social {
    justify-content: center;
    gap: 10px;
  }
  .footer-section .form input {
    height: 40px;
  }
  .footer-section .footer-col {
    flex: 0 0 100%;
  }
  .footer-section .qrcode-group {
    justify-content: center;
  }
  .footer-section .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    margin: auto;
    gap: 10px;
  }
}