/* 首页页脚：满宽四列信息，二维码采用悬停浮层，不占固定高度。 */
.site-footer {
  box-sizing: border-box;
  width: min(calc(100% - 80px), var(--container));
  margin: 0 auto 30px;
  padding: 34px 0 16px;
  background: #08192d;
}

.site-footer .footer-grid {
  grid-template-columns: minmax(270px, 1.55fr) minmax(130px, .8fr) minmax(130px, .8fr) minmax(480px, 2.65fr);
  gap: 54px;
  align-items: start;
}

/* 页脚信息始终与正文共享同一内容画布，宽屏只增加两侧留白。 */
.site-footer .footer-grid,
.site-footer .footer-bottom {
  box-sizing: border-box;
  width: min(calc(100% - 80px), var(--container));
  margin-right: auto;
  margin-left: auto;
}

.site-footer .footer-grid > * {
  gap: 9px;
  font-size: 14px;
}

.site-footer .footer-logo {
  width: 164px;
  height: 55px;
  margin: 0 0 7px;
}

.site-footer .footer-grid p {
  margin: 0;
  font-size: 17px;
  line-height: 1.45;
}

.site-footer .footer-col-brand > span {
  color: #a8b9ca;
  font-size: 13px;
}

.site-footer .footer-grid strong {
  margin-bottom: 8px;
  font-size: 15px;
}

.site-footer .footer-col-nav {
  padding-top: 4px;
}

.site-footer .footer-col-nav a {
  color: #afc0d1;
  font-size: 14px;
  line-height: 1.65;
}

.site-footer .footer-col-nav a:hover {
  color: #dfae6b;
}

.site-footer .footer-col-contact {
  padding-top: 4px;
}

.site-footer .footer-contact-item {
  gap: 9px;
  color: #b4c4d4;
  line-height: 1.5;
}

.site-footer .footer-address-inner {
  margin-top: 5px;
}

.site-footer .footer-address-list {
  gap: 5px;
}

.site-footer .footer-address-item {
  gap: 9px;
  color: #b4c4d4;
  font-size: 13px;
  line-height: 1.55;
}

.site-footer .footer-follow-inner {
  margin-top: 15px;
}

.site-footer .footer-follow-inner strong {
  margin: 0;
}

.site-footer .footer-follow-items {
  gap: 12px;
}

.site-footer .footer-qr-item {
  position: relative;
  display: block;
}

.site-footer .footer-social-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 13px;
  border: 1px solid rgba(223, 174, 107, .78);
  border-radius: 4px;
  color: #dfae6b;
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  line-height: 1;
}

.site-footer .footer-social-trigger::before {
  display: none;
}

.site-footer .footer-social-trigger::after {
  display: none;
}

.site-footer .footer-qr-item:nth-child(1) .footer-social-trigger::after {
  -webkit-mask-image: url("../images/icons/lucide/play.svg");
  mask-image: url("../images/icons/lucide/play.svg");
}

.site-footer .footer-qr-item:nth-child(2) .footer-social-trigger::after {
  -webkit-mask-image: url("../images/icons/lucide/message-circle.svg");
  mask-image: url("../images/icons/lucide/message-circle.svg");
}

.site-footer .footer-qr-item:nth-child(3) .footer-social-trigger::after {
  -webkit-mask-image: url("../images/icons/lucide/video.svg");
  mask-image: url("../images/icons/lucide/video.svg");
}

.site-footer .footer-social-trigger:hover,
.site-footer .footer-social-trigger:focus-visible {
  color: #ffffff;
  border-color: #dfae6b;
  background: rgba(223, 174, 107, .16);
  outline: none;
}

.site-footer .footer-qr {
  position: absolute;
  z-index: 10;
  bottom: calc(100% + 13px);
  left: 50%;
  display: block;
  width: 130px;
  height: 130px;
  padding: 7px;
  border: 1px solid rgba(223, 174, 107, .58);
  border-radius: 7px;
  background-color: #ffffff;
  box-shadow: 0 14px 30px rgba(0, 0, 0, .3);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity .18s ease, transform .18s ease;
}

.site-footer .footer-qr-item.is-qr-open .footer-qr { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }

.site-footer .footer-bottom {
  justify-content: space-between;
  margin-top: 25px;
  padding-top: 13px;
  font-size: 12px;
}

/* 页脚底栏固定为：备案号左侧、隐私说明居中、版权右侧。 */
.site-footer .footer-bottom {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
}
.site-footer .footer-bottom > p { justify-self: start; }
.site-footer .footer-icp-link { color: inherit; text-decoration: none; }
.site-footer .footer-icp-link:hover { text-decoration: underline; }
.site-footer .footer-bottom > .footer-privacy-button { justify-self: center; }
.site-footer .footer-bottom > span:not(.wireframe-only-text) { justify-self: end; }
@media (max-width: 560px) {
  .site-footer .footer-qr-item:first-child .footer-qr { left: 0; transform: translate(0, 8px); }
  .site-footer .footer-qr-item:first-child.is-qr-open .footer-qr { transform: translate(0, 0); }
  .site-footer .footer-bottom { display: grid; grid-template-columns: 1fr auto 1fr; width: 100%; }
}

.site-footer .footer-follow-row {
  display: none;
}

@media (min-width: 1920px) {
  .site-footer { padding-top: 42px; padding-bottom: 20px; }
  .site-footer .footer-grid { grid-template-columns: minmax(320px, 1.45fr) minmax(150px, .78fr) minmax(150px, .78fr) minmax(540px, 2.55fr); gap: 64px; }
  .site-footer .footer-grid > * { gap: 11px; font-size: 16px; }
  .site-footer .footer-logo { width: 190px; height: 64px; margin-bottom: 9px; }
  .site-footer .footer-grid p { font-size: 19px; }
  .site-footer .footer-col-brand > span,
  .site-footer .footer-address-item { font-size: 14px; }
  .site-footer .footer-grid strong { font-size: 17px; }
  .site-footer .footer-col-nav a { font-size: 15px; line-height: 1.7; }
  .site-footer .footer-contact-item { font-size: 15px; }
  .site-footer .footer-follow-inner { margin-top: 18px; }
  .site-footer .footer-social-trigger { min-height: 38px; padding: 0 15px; font-size: 14px; }
  .site-footer .footer-bottom { margin-top: 30px; padding-top: 16px; font-size: 13px; }
}

@media (max-width: 1100px) {
  .site-footer .footer-grid {
    grid-template-columns: 1.35fr .8fr .8fr 2fr;
    gap: 28px;
  }
}

@media (max-width: 820px) {
  .site-footer .footer-grid {
    grid-template-columns: 1.2fr 1fr;
    gap: 28px;
  }

  .site-footer .footer-col-contact {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .site-footer { width: calc(100% - 36px); margin-bottom: 18px; }
  .site-footer .footer-grid {
    grid-template-columns: 1fr;
  }

  .site-footer .footer-col-contact {
    grid-column: auto;
  }

  .site-footer .footer-bottom {
    align-items: flex-start;
    justify-content: flex-start;
    flex-direction: column;
    gap: 4px;
  }
}

@media (max-width: 560px) {
  .site-footer .footer-bottom {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    justify-content: normal;
    gap: 0;
  }
}

/* 所有前台页面共享首页已确认的手机端页脚构成。 */
@media (max-width: 820px) {
  .site-footer {
    width: min(calc(100% - 36px), 680px);
    margin: 0 auto 18px;
    overflow: visible;
    border-radius: 8px;
    padding-bottom: 36px;
  }
  .site-footer .footer-col-nav { display: none; }
  .site-footer .footer-follow-inner { display: block; }
  .site-footer .footer-follow-items { display: flex; flex-wrap: nowrap; gap: 10px; }
  .site-footer .footer-social-trigger { min-height: 34px; padding-right: 10px; padding-left: 10px; font-size: 13px; white-space: nowrap; }
  .site-footer .footer-qr { width: 116px; height: 116px; padding: 6px; }
  .site-footer .footer-qr-item:first-child .footer-qr { left: 0; transform: translate(0, 8px); }
  .site-footer .footer-qr-item:first-child.is-qr-open .footer-qr { transform: translate(0, 0); }
  .site-footer .footer-follow-inner strong,
  .site-footer .footer-col-contact > strong { display: none; }
  .site-footer .footer-address-list li:not(:first-child) { display: none; }
  .site-footer .footer-bottom {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    flex-direction: column;
    width: calc(100% - 80px) !important;
    margin-right: 40px !important;
    margin-left: 40px !important;
    gap: 7px;
    text-align: left;
  }
  .site-footer .footer-bottom > p,
  .site-footer .footer-bottom > span:not(.wireframe-only-text) { justify-self: start !important; }
}