/*
 * Jiedu Footer CSS
 * 页脚与全站浮动求助按钮。
 */
.jiedu-site-footer {
  margin-top: 0;
  background: linear-gradient(180deg, var(--jd-primary-strong), #0f1f33);
  color: rgba(255, 255, 255, 0.9);
}

.jiedu-footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 22px;
  padding: 28px 0 20px;
}

.jiedu-footer-grid section {
  min-width: 0;
}

.jiedu-site-footer h3 {
  margin: 0 0 10px;
  color: #fff;
  font-size: 16px;
  line-height: 1.35;
}

.jiedu-site-footer p,
.jiedu-site-footer li,
.jiedu-site-footer a {
  color: rgba(255, 255, 255, 0.84);
  font-size: 14px;
  line-height: 1.62;
}

.jiedu-site-footer p {
  margin: 0 0 10px;
}

.jiedu-site-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.jiedu-site-footer li {
  margin: 5px 0;
}

.jiedu-site-footer a {
  text-decoration: none;
}

.jiedu-site-footer a:hover {
  color: #fff;
}

.jiedu-footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 13px;
}

.jiedu-footer-bottom p {
  margin: 0;
}

.jiedu-floating-help,
.jd-float-help {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
}

.jiedu-floating-help,
.jd-float-help__btn,
.jiedu-float-help a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 40px;
  padding: 10px 15px;
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--jd-primary-strong);
  font-size: 14px;
  font-weight: 850;
  line-height: 1;
  text-decoration: none;
  box-shadow: 0 8px 32px rgba(15, 36, 55, 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
}

.jiedu-floating-help:hover,
.jd-float-help__btn:hover,
.jiedu-float-help a:hover {
  color: var(--jd-primary-strong);
}

.jd-float-help__btn span {
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 50%;
  background: #fdebd0;
  color: #7a4c08;
  font-weight: 900;
}

@media (max-width: 980px) {
  .jiedu-footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .jiedu-site-footer {
    margin-top: 18px;
  }

  .jiedu-footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 16px;
    padding: 18px 0 12px;
  }

  .jiedu-site-footer h3 {
    margin-bottom: 7px;
    font-size: 15px;
    line-height: 1.25;
  }

  .jiedu-site-footer p,
  .jiedu-site-footer li,
  .jiedu-site-footer a {
    font-size: 12.5px;
    line-height: 1.52;
  }

  .jiedu-site-footer li {
    margin: 4px 0;
  }

  .jiedu-footer-bottom {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 10px 0 14px;
    font-size: 12px;
  }

  .jiedu-footer-bottom p:last-child {
    text-align: right;
  }
}

@media (max-width: 680px) {
  .jd-float-help,
  .jiedu-floating-help,
  .jiedu-float-help {
    right: 12px;
    bottom: 12px;
    left: auto;
    width: auto;
    max-width: calc(100% - 24px);
  }

  .jd-float-help__btn,
  .jiedu-floating-help,
  .jiedu-float-help a {
    width: auto;
    min-height: 38px;
    padding: 9px 13px;
    gap: 7px;
    font-size: 13px;
    white-space: nowrap;
  }

  .jd-float-help__btn strong {
    display: inline;
    font-size: 13px;
  }
}

@media (max-width: 390px) {
  .jiedu-footer-grid,
  .jiedu-footer-bottom {
    grid-template-columns: 1fr;
  }

  .jiedu-footer-bottom p:last-child {
    text-align: left;
  }
}