@charset "UTF-8";
body {
  background-color: #efeae3;
}

header {
  background-color: var(--primary);
  padding: 20px 0;
  box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
}

.fixed-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.4);
  transition: all 0.3s ease-in-out; /* 平滑过渡效果 */
}

.site-logo {
  display: flex;
  align-items: center;
}
.site-logo img {
  height: 32px;
}
.site-logo h1 {
  color: #fff;
  font-size: 30px;
  font-weight: 600;
  margin: 0;
  margin-left: 20px;
}

.site-menu {
  display: flex;
  align-items: center;
  justify-content: center;
}
.site-menu .btn-icon {
  font-size: 20px;
}

section {
  padding: 10px 15px 20px;
  line-height: 2;
  background-color: #fff;
  margin: 20px 0;
  transition: box-shadow 0.3s ease;
  border-radius: 10px;
}
section .content {
  padding: 15px 15px;
}
section .content-footer {
  padding: 10px 15px;
  font-size: 14px;
  color: #666;
}
section .coming-soon {
  padding: 15px 0;
  text-align: center;
  line-height: 120px;
  min-height: 120px;
  transition: color 0.3s ease, background-color 0.3s ease;
  color: rgba(0, 0, 0, 0.5);
}
section .coming-soon:hover {
  background-color: #eee;
}
section h3 {
  font-size: 20px;
  line-height: 2.5;
  margin-bottom: 0;
}
section h4, section h5 {
  font-size: 18px;
  line-height: 2.5;
  margin-bottom: 0;
}

@media (max-width: 767px) {
  section .content {
    padding: 10px;
  }
  section .content-footer {
    padding: 10px;
  }
}

h2.section-title {
  font-size: 26px;
  font-weight: 600;
  line-height: 2;
  margin: 0;
  border-bottom: 1px solid #ccc;
  transition: padding-left 0.3s ease, border-color 0.3s ease;
  color: var(--primary);
  padding-left: 15px;
}

h4.section-title {
  line-height: 2;
  margin: 0;
  border-bottom: 1px solid var(--accent-2);
  transition: padding-left 0.3s ease, border-color 0.3s ease;
  color: var(--accent-2);
}

.navbar {
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  margin-bottom: 1rem;
}

.navbar-brand {
  font-weight: 600;
}

.chart-container {
  margin: 20px 0;
}

.site-menu {
  position: absolute;
  top: 0;
  right: 20px;
}
.site-menu .btn-icon {
  background: none;
  border: none;
  padding: 6px 15px;
  margin: 0;
  color: #fff;
  transition: color 0.3s ease, background-color 0.3s ease;
}
.site-menu .btn-icon span {
  display: none;
}
.site-menu .btn-icon:hover {
  color: var(--primary-lightest);
  background-color: var(--primary-darker);
}

.section-first {
  margin-top: 20px;
}

.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.search-box {
  position: relative;
  background-color: #efeae3;
  padding: 20px;
  text-align: center;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
.search-box .search-input {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 400px;
  border-bottom: 2px solid #ccc;
  padding: 10px;
  transition: border-bottom 0.3s ease;
}
.search-box .search-input input:focus {
  outline: none;
  box-shadow: none;
}
.search-box .search-input.input-focus {
  border-bottom: 2px solid var(--primary);
}
.search-box .search-input input {
  width: 100%;
  border: none;
  background: transparent;
  border: 0;
}
.search-box .search-input button {
  margin-left: 10px;
  background: transparent;
  border: none;
  color: #666;
  font-size: 30px;
  font-weight: 600;
  line-height: 36px;
  width: 36px;
  height: 36px;
  padding: 0;
  transition: color 0.3s ease, font-size 0.3s ease;
}
.search-box .search-input button:hover {
  color: var(--primary-light);
  font-size: 24px;
}

.close-btn {
  position: absolute;
  top: 0;
  right: 0;
  display: block;
  background: transparent;
  border: none;
  border-radius: 0;
  color: #666;
  font-size: 40px;
  font-weight: 600;
  line-height: 90px;
  width: 90px;
  height: 90px;
  padding: 0;
  transition: color 0.3s ease, font-size 0.3s ease;
}
.close-btn:hover {
  color: var(--primary-light);
  background-color: #fff;
  font-size: 40px;
}

body.no-scroll {
  overflow: hidden;
}

.sidebar-menu {
  display: none;
  position: fixed;
  top: 0;
  right: -360px;
  width: 360px;
  height: 100%;
  background-color: var(--primary-light);
  background-image: url("../../assets/images/house-mountain.png");
  background-size: contain;
  background-position: 100% 100%;
  background-repeat: no-repeat;
  z-index: 1000;
  transition: left 0.5s ease;
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.5);
  padding-top: 70px;
}
.sidebar-menu .nav-item {
  line-height: 2;
}
.sidebar-menu .nav-item:first-child {
  border-top: 1px solid #ccc;
}
.sidebar-menu .nav-item a {
  display: block;
  background-color: var(--primary-light);
  color: #fff;
  text-decoration: none;
  font-size: 18px;
  border-bottom: 1px solid #ccc;
  padding: 5px 15px;
}
.sidebar-menu .nav-item a:hover {
  background-color: var(--primary);
}
.sidebar-menu .nav-item a .fa-chevron-left {
  color: var(--secondary-lighter);
}
.sidebar-menu .nav-item ul.collapse {
  background-color: var(--primary-light);
  padding-left: 0;
}
.sidebar-menu .nav-item ul.collapse li {
  list-style: none;
}
.sidebar-menu .nav-item ul.collapse a {
  background-color: var(--primary-light);
  font-size: 16px;
  transition: padding-left 0.3s ease, background-color 0.3s ease;
  padding-left: 20px;
}
.sidebar-menu .nav-item ul.collapse a:hover {
  padding-left: 25px;
  background-color: var(--primary-lighter);
  color: var(--secondary-lightest);
}

.company-logo {
  text-align: right;
}
.company-logo img {
  width: 50%;
  height: auto;
  margin: 0 auto;
}

.company-signature {
  text-align: left;
}
.company-signature img {
  width: 50%;
  height: auto;
  margin: 0 auto;
}

@media (max-width: 767px) {
  .company-logo {
    text-align: center;
  }
  .company-signature {
    text-align: center;
  }
}


.section-title, .content-title, .content-list li, .content-text {
  transition: color 0.3s ease;
}

@media (max-width: 767px) {
  .site-logo h1 {
    display: none;
  }
  .main-content img {
    width: 90%;
    height: auto;
  }
  .main-content p {
    word-break: break-all;
    word-wrap: break-word;
  }
}
.main-content img {
  transition: transform 0.3s ease;
}

.sidebar-footer-social {
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  bottom: 30px;
  width: 100%;
}

.footer-social {
  margin-top: 10px;
}

.social-icon {
  margin: 0 10px;
  color: #ffffff;
  text-decoration: none;
  font-size: 20px;
}

.social-icon:hover {
  color: #0165a0;
}


.footer-social {
  margin-left: 20px;
}

.footer-text {
  text-align: right;
}


.chemical-summary {
  font-size: 14px;
}
.chemical-summary th {
  background-color: #d18316;
  color: white;
  text-align: center;
  vertical-align: middle;
}
.chemical-summary td {
  text-align: center;
  vertical-align: middle;
}
.chemical-summary tr:nth-child(even) {
  background-color: #f9f9f9;
}
.chemical-summary tr:hover {
  background-color: #f5f5f5;
}


.backcover{
  /* background-image: url("../../assets/images/logo-65yrs.jpg");
  background-position: center;
  background-repeat: no-repeat; */
  height: 80vh;
  width: 100%;
  text-align: center;
  align-content: center;

}

.backcover p{
  font-size: 20px;
  font-weight: 600;
  line-height: 2;
  margin: 0;
  padding-top: 20px;
  color: var(--primary);
}

.backcover img{
  width: fit-content;
  height:auto
}