.qicheng_foot {
  --footer-title-m-bottom: max(0.4rem, 6px);
  --content-color: #b6b6b6;
  padding-top: 102px;
  font-family: var(--font-family);
  border-top-left-radius: var(--border-radius-lg);
  border-top-right-radius: var(--border-radius-lg);
  background: #353535;
  z-index: 11;
  position: relative;
  overflow: hidden;
}
.qicheng_foot > .container {
  max-width: 1424px;
  width: 100%;
}

/* top layout: left / center / right */
.foot-top {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  padding-bottom: 40px;
}

/* left column */
.foot-left .foot-logo img {
  display: block;
  margin-bottom: 95px;
  width: 82px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}
.foot-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
/* contact lines */
.foot-contact .foot-line {
  display: flex;
  max-width: 318px;
  align-items: start;
  color: #868686;
  font-family: var(--font-family);
  color: var(--text-color-white);
  font-size: var(--text-font-size-base);
}

.foot-contact .foot-line .ico {
  display: contents;
  flex-shrink: 0;
}

.foot-social {
  margin-top: 34px;
}

.social-inline {
  list-style: none;
  display: flex;
  gap: 16px;
  padding: 0;
  margin: 0;
  align-items: center;
}
.social-inline li a {
  --size: 31px;
  position: relative;
  width: var(--size);
  height: var(--size);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid #fff;
  cursor: pointer;
}

.social-inline li a .iconfont {
  color: #fff;
}

.wechat-icon {
  position: relative;
}

/* 初始隐藏状态 */
.wechat-icon_qcode {
  position: absolute;
  background: #fff;
  left: 100%;
  top: 50%;
  transform: translate(20%, -50%) scale(0.95);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 15px 20px;
  width: max-content;
  border-radius: var(--border-radius-sm);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
}

/* 悬停显示 + 动效 */
.wechat-icon:hover .wechat-icon_qcode {
  opacity: 1;
  pointer-events: auto;
  transform: translate(10%, -50%) scale(1);
}

.wechat-icon_qcode img {
  width: 97px;
  object-fit: contain;
}

.wechat-icon_qcode span {
  font-family: var(--font-family);
  font-weight: var(--font-weight);
  color: var(--text-color-black);
}

.social-inline li a:hover {
  border-color: var(--primary-color);
  background: var(--primary-color);
}

.foot-line-info {
  margin-left: 12px;
  color: var(--content-color);
  font-family: var(--font-family);
  font-size: 14px;
  text-transform: capitalize;
  text-align: left;
}
.foot-contact a {
  text-decoration: none;
  cursor: pointer;
}

/* center columns */
.foot-right {
  margin-left: 3rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  position: relative;
}

.foot-col {
  min-width: 193px;
  height: min-content;
}

.foot-col .foot-col_title {
  color: var(--text-color-white);
  font-family: var(--font-family);
  font-size: 24px;
  font-weight: 600;
  text-transform: capitalize;
  margin-bottom: 6px;
}

.foot-col .foot-col_title .iconfont {
  display: none;
}
.foot-col .foot-col_list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.foot-col .foot-col_list-item {
  font-family: var(--font-family);
  font-size: 16px;
  font-weight: 400;
}
.foot-col .foot-col_list-item a {
  color: var(--content-color);
  font-family: var(--font-family);
  font-size: 14px;
  text-transform: capitalize;
}
.foot-col .foot-col_list-item:active a,
.foot-col .foot-col_list-item:hover a {
  color: var(--primary-color);
}

/* bottom bar */
.foot-bottom {
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: var(--font-family);
  color: var(--content-color);
  border-top: solid 1px rgba(217, 217, 217, 0.3);
  padding-top: 21px;
  padding-bottom: 56px;
}
.foot-bottom p {
  text-align: left;
}

@media screen and (max-width: 1580px) {
  .foot-col {
    min-width: 230px;
  }
  .foot-right {
    margin-left: 1.5rem;
  }
}

@media screen and (max-width: 1440px) {
  .qicheng_foot > .container {
    max-width: 1440px;
    width: 100%;
  }
}

@media screen and (max-width: 1200px) {
  .qicheng_foot {
    padding-top: 60px;
  }

  .foot-top.container {
    grid-template-columns: 1fr !important;
    /* padding: 0 60px; */
    /* padding-bottom: 40px; */
  }
  .foot-right {
    margin-left: 0px;
    justify-content: flex-start;
  }
  .foot-center {
    padding: 0 0px;
  }

  /* 1024px及以下展开效果（与552px一致） */
  .qicheng_foot {
    --foot-gap: 30px;
    padding-bottom: 60px;
  }

  .foot-top {
    row-gap: var(--foot-gap);
  }
  .foot-col {
    min-width: 100%;
  }

  .wechat-icon_qcode {
    left: auto;
    right: 100%;
    top: 50%;
    transform: translate(-20%, -50%) scale(0.95);
  }

  .wechat-icon:hover .wechat-icon_qcode {
    transform: translate(-10%, -50%) scale(1);
  }

  .foot-left .foot-logo img {
    margin-bottom: 0px;
    width: 42px;
  }

  .foot-contact .foot-line {
    min-width: 100%;
  }

  .foot-col .foot-col_title {
    font-size: 16px;
    padding: 12px;
    border-bottom: 1px solid #a1a1a1;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .foot-col .foot-col_list {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .foot-col .foot-col_list-item {
    padding: 0px 24px;
  }

  .foot-col .foot-col_title .iconfont {
    display: inline-block;
    color: #fff;
    transition: transform 0.3s ease;
  }

  .foot-col .foot-col_title {
    cursor: pointer;
  }

  /* 默认收起状态 */
  .foot-col .foot-col_list {
    max-height: 0;
    overflow: hidden;
    transition:
      max-height 0.3s ease,
      padding 0.3s ease;
    padding: 0;
  }

  /* 展开状态 */
  .foot-col.active .foot-col_list {
    max-height: 500px;
    padding: 12px 0;
  }

  /* 图标旋转 */
  .foot-col.active .foot-col_title .iconfont {
    transform: rotate(180deg);
  }

  .foot-left {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    align-items: center;
    row-gap: var(--foot-gap);
  }

  .foot-left .foot-logo {
    order: 1;
  }

  .foot-left .foot-social {
    order: 2;
    margin: 0;
  }
  .foot-left .foot-contact {
    order: 3;
    grid-column: 1 / 3;
  }

  .foot-right {
    gap: 0px;
    row-gap: 10px;
    justify-content: space-between;
  }

  .foot-bottom {
    justify-content: flex-start;
  }
}

@media screen and (max-width: 992px) {
  .foot-top {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
  }
  .foot-left {
  }
  .foot-center {
    flex: 1;
    flex-shrink: 0;
    min-width: 400px;
  }

  .foot-right {
    flex: 1;
    max-width: 100%;
    margin-left: 0px;
    gap: 20px;
  }
}

@media screen and (max-width: 820px) {
  /* .foot-contact .foot-line {
    max-width: 300px;
  } */

  /* .foot-col {
    min-width: 160px;
  } */
}

@media screen and (max-width: 768px) {
  .wechat-icon_qcode {
    left: 50%;
    top: 100%;
    transform: translate(-50%, 20%) scale(0.95);
  }

  .wechat-icon:hover .wechat-icon_qcode {
    transform: translate(-50%, 10%) scale(1);
  }
  /* 
  .foot-contact .foot-line {
    max-width: 255px;
  } */
}

@media screen and (max-width: 552px) {
  .qicheng_foot {
    --foot-gap: 30px;
    padding-bottom: 60px;
  }

  .foot-top {
    row-gap: var(--foot-gap);
  }
  .foot-col {
    min-width: 100%;
  }

  .wechat-icon_qcode {
    left: auto;
    right: 100%;
    top: 50%;
    transform: translate(-20%, -50%) scale(0.95);
  }

  .wechat-icon:hover .wechat-icon_qcode {
    transform: translate(-10%, -50%) scale(1);
  }

  .foot-left .foot-logo img {
    margin-bottom: 0px;
    width: 42px;
  }

  .foot-contact .foot-line {
    min-width: 100%;
  }

  .foot-col .foot-col_title {
    font-size: 16px;
    padding: 12px;
    border-bottom: 1px solid #a1a1a1;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .foot-col .foot-col_list {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .foot-col .foot-col_list-item {
    padding: 0px 24px;
  }

  .foot-col .foot-col_title .iconfont {
    display: inline-block;
    color: #fff;
    transition: transform 0.3s ease;
  }

  .foot-col .foot-col_title {
    cursor: pointer;
  }

  /* 默认收起状态 */
  .foot-col .foot-col_list {
    max-height: 0;
    overflow: hidden;
    transition:
      max-height 0.3s ease,
      padding 0.3s ease;
    padding: 0;
  }

  /* 展开状态 */
  .foot-col.active .foot-col_list {
    max-height: 500px;
    padding: 12px 0;
  }

  /* 图标旋转 */
  .foot-col.active .foot-col_title .iconfont {
    transform: rotate(180deg);
  }

  .foot-left {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    align-items: center;
    row-gap: var(--foot-gap);
  }

  .foot-left .foot-logo {
    order: 1;
  }

  .foot-left .foot-social {
    order: 2;
    margin: 0;
  }
  .foot-left .foot-contact {
    order: 3;
    grid-column: 1 / 3;
  }

  .foot-right {
    gap: 0px;
    row-gap: 10px;
    justify-content: space-between;
  }

  .foot-bottom {
    justify-content: flex-start;
  }
}