.left-aligned {
  margin-left: auto;
}

.bg-dark {
  background-color: #343a40 !important;
}

.bg-hero {
  background-color: #45b06cff;
}

/* CALLOUT */
.bd-callout {
  padding: 1.25rem;
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
  border: 1px solid #e9ecef;
  border-left-width: .25rem;
  border-radius: .25rem
}

.bd-callout h4 {
  margin-bottom: .25rem
}

.bd-callout p:last-child {
  margin-bottom: 0
}

.bd-callout code {
  border-radius: .25rem
}

.bd-callout + .bd-callout {
  margin-top: -.25rem
}

.bd-callout-info {
  border-left-color: #5bc0de
}

.bd-callout-warning {
  border-left-color: #f0ad4e
}

.bd-callout-danger {
  border-left-color: #d9534f
}

/* footer */
footer a {
  color: white;
  font-weight: bold;
  text-decoration: none;
}

footer a:hover {
  color: white;
  text-decoration: underline;
}

.hero-image {
  position: relative;
  width: 100%;
  object-fit: cover;
  margin-top: -56px; /* 调整负边距以适应新的导航栏高度 */
}

.footer {
  background-color: #6D966B;
}

@media (min-width: 768px) {
  .footer-img {
    width: 50%;
  }
}

.navbar-custom {
  transition: background-color 0.3s;

  a {
    color: black !important;
  }
}

.navbar-scrolled {
  background-color: rgba(221, 238, 234, 0.6) !important;
  backdrop-filter: blur(0.6rem);

}

.offcanvas.show .offcanvas-body .nav-link {
  color: black !important;
  /* 确保 offcanvas 中的字体颜色为黑色 */
}

.offcanvas.show .offcanvas-body .nav-link:hover,
.offcanvas.show .offcanvas-body .nav-link:focus {
  color: gray !important;
  /* 鼠标悬停和焦点时的颜色 */
}

.dropdown-menu.show {
  border: none; /* 移除下拉菜单的边框 */
  box-shadow: none; /* 移除下拉菜单的阴影 */
}

.nav-item.dropdown:hover .dropdown-menu {
  display: block;
  margin-top: 0; /* Ensure proper positioning */
}

.scroll-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: none;
  z-index: 1000;
}


/* 悬挂返回顶部 */

.hanging-container {
  padding: 0;
  width: 100px;
  position: fixed;
  left: 92%;
  transition: top 0.5s ease-in-out;
  top: -1000px;
  z-index: 9;

}

.hanging-container.show {
  top: 0;
  z-index: 1033;
}


.rope {
  padding: 0;
  position: absolute;
  background-color: rgb(139, 69, 19);
  border-color: rgb(239, 156, 97);
  top: 0;
  width: 2.5px;
  border-left: 1px;
  height: 84vh;
  left: 23px;
  z-index: 9;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.hanging-container a {
  left: -10px;
  top: 80vh;
  position: absolute;
  z-index: 10;
}


.hanging-container img {
  height: 70px;
  transition: transform 0.3s ease;
}

.hanging-container a:hover img {
  transform: scale(1.2);
}


/* 顶部进度条css */
#content_progress {
  /* Positioning */
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1032;
  width: 100%;
  height: 5px;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: none;
  background-color: transparent;
  color: #35a935;
}

#content_progress::-webkit-progress-bar {
  background-color: transparent;
}