:root {
  --default-font: "Open Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  --heading-font: "Montserrat", sans-serif;
  --nav-font: "Lato", sans-serif;
}

/* Global Colors */
:root {
  --background-color: #ffffff;
  --background-color-rgb: 255, 255, 255;
  --default-color: #212529;
  --default-color-rgb: 33, 37, 41;
  --accent-color: #e84545;
  --accent-color-rgb: 232, 69, 69;
  --heading-color: #32353a;
  --heading-color-rgb: 50, 53, 58;
  --contrast-color: #ffffff;
  --contrast-color-rgb: 255, 255, 255;
}

/* Nav Menu Colors */
:root {
  --nav-color: #3a3939;
  --nav-hover-color: #e84545;
  --nav-dropdown-color: #3a3939;
  --nav-dropdown-hover-color: #e84545;
  --nav-dropdown-background-color: #ffffff;
}

/* Smooth scroll */
:root {
  scroll-behavior: smooth;
}

/*--------------------------------------------------------------
# General
--------------------------------------------------------------*/
body {
  color: var(--default-color);
  background-color: var(--background-color);
  font-family: var(--default-font);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: 0.3s;
}

a:hover {
  color: rgba(var(--accent-color-rgb), 0.7);
  text-decoration: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--heading-color);
  font-family: var(--heading-font);
}

/*--------------------------------------------------------------
# Global Header
--------------------------------------------------------------*/
.header {
  --background-color: #ffffff;
  color: var(--default-color);
  background-color: var(--background-color);
  padding: 15px 0;
  transition: all 0.5s;
  z-index: 997;
}

.header .logo img {
  max-height: 40px;
  margin-right: 6px;
}

.header .logo h1 {
  font-size: 24px;
  margin: 0;
  font-weight: 600;
  color: var(--heading-color);
}

.header .logo span {
  color: var(--accent-color);
  font-size: 24px;
  font-weight: 600;
  padding-left: 3px;
}



@media (max-width: 1200px) {
  .header .logo {
    order: 1;
  }

  .header .btn-getstarted {
    order: 2;
    margin: 0 15px 0 0;
    padding: 6px 20px;
  }

  .header .navmenu {
    order: 3;
  }
}

/* Global Header on page scroll
------------------------------*/
.scrolled .header {
  --background-color: #ffffff;
  --heading-color: #444444;
  --nav-color: #444444;
  --nav-hover-color: #e84545;
  box-shadow: 0 0 30px 10px rgba(0, 0, 0, 0.1);
}

/* Global Scroll Margin Top
------------------------------*/
section {
  scroll-margin-top: 90px;
}

@media (max-width: 1199px) {
  section {
    scroll-margin-top: 66px;
  }
}

/* Home Page Custom Header
------------------------------*/
.index-page .header {
  --background-color: rgba(255, 255, 255, 0);
  --heading-color: #ffffff;
  --nav-color: rgba(255, 255, 255, 0.515);
  --nav-hover-color: #ffffff;
}

/* Home Page Custom Header on page scroll
------------------------------*/
.index-page.scrolled .header {
  --background-color: #ffffff;
  --heading-color: #444444;
  --nav-color: #444444;
  --nav-hover-color: #d83535;
}

/*--------------------------------------------------------------
# Navigation Menu
--------------------------------------------------------------*/
/* Desktop Navigation */
@media (min-width: 1200px) {
  .navmenu {
    padding: 0;
  }

  .navmenu ul {
    margin: 0;
    padding: 0;
    display: flex;
    list-style: none;
    align-items: center;
  }

  .navmenu li {
    position: relative;
  }

  .navmenu a,
  .navmenu a:focus {
    color: var(--nav-color);
    padding: 18px 15px;
    font-size: 16px;
    font-family: var(--nav-font);
    font-weight: 400;
    display: flex;
    align-items: center;
    justify-content: space-between;
    white-space: nowrap;
    transition: 0.3s;
  }

  .navmenu a i,
  .navmenu a:focus i {
    font-size: 12px;
    line-height: 0;
    margin-left: 5px;
    transition: 0.3s;
  }

  .navmenu li:last-child a {
    padding-right: 15px;
  }

  .navmenu li:hover>a,
  .navmenu .active,
  .navmenu .active:focus {
    color: var(--nav-hover-color);
  }

  .navmenu .dropdown ul {
    margin: 0;
    padding: 10px 0;
    background: var(--nav-dropdown-background-color);
    display: block;
    position: absolute;
    visibility: hidden;
    left: 14px;
    top: 130%;
    opacity: 0;
    transition: 0.3s;
    border-radius: 4px;
    z-index: 99;
  }

  .navmenu .dropdown ul li {
    min-width: 200px;
  }

  .navmenu .dropdown ul a {
    padding: 10px 20px;
    font-size: 15px;
    text-transform: none;
    color: var(--nav-dropdown-color);
  }

  .navmenu .dropdown ul a i {
    font-size: 12px;
  }

  .navmenu .dropdown ul a:hover,
  .navmenu .dropdown ul .active:hover,
  .navmenu .dropdown ul li:hover>a {
    color: var(--nav-dropdown-hover-color);
  }

  .navmenu .dropdown:hover>ul {
    opacity: 1;
    top: 100%;
    visibility: visible;
  }

  .navmenu .dropdown .dropdown ul {
    top: 0;
    left: -90%;
    visibility: hidden;
  }

  .navmenu .dropdown .dropdown:hover>ul {
    opacity: 1;
    top: 0;
    left: -100%;
    visibility: visible;
  }

  .navmenu .megamenu {
    position: static;
  }

  .navmenu .megamenu ul {
    margin: 0;
    padding: 10px;
    background: var(--nav-dropdown-background-color);
    box-shadow: 0px 0px 20px rgba(var(--default-color-rgb), 0.1);
    display: block;
    position: absolute;
    top: 130%;
    left: 0;
    right: 0;
    visibility: hidden;
    opacity: 0;
    display: flex;
    transition: 0.3s;
    border-radius: 4px;
    z-index: 99;
  }

  .navmenu .megamenu ul li {
    flex: 1;
  }

  .navmenu .megamenu ul li a,
  .navmenu .megamenu ul li:hover>a {
    padding: 10px 20px;
    font-size: 15px;
    color: var(--nav-dropdown-color);
  }

  .navmenu .megamenu ul li a:hover,
  .navmenu .megamenu ul li .active,
  .navmenu .megamenu ul li .active:hover {
    color: var(--nav-dropdown-hover-color);
  }

  .navmenu .megamenu:hover>ul {
    opacity: 1;
    top: 100%;
    visibility: visible;
  }

  .navmenu .dd-box-shadow {
    box-shadow: 0px 0px 30px rgba(var(--default-color-rgb), 0.15);
  }
}

/* Mobile Navigation */
@media (max-width: 1199px) {
  .mobile-nav-toggle {
    color: var(--nav-color);
    font-size: 28px;
    line-height: 0;
    margin-right: 10px;
    cursor: pointer;
    transition: color 0.3s;
  }

  .navmenu {
    padding: 0;
    z-index: 9997;
  }

  .navmenu ul {
    display: none;
    position: absolute;
    inset: 60px 20px 20px 20px;
    padding: 10px 0;
    margin: 0;
    border-radius: 6px;
    background-color: var(--nav-dropdown-background-color);
    overflow-y: auto;
    transition: 0.3s;
    z-index: 9998;
    box-shadow: 0px 0px 30px rgba(var(--default-color-rgb), 0.1);
  }

  .navmenu a,
  .navmenu a:focus {
    color: var(--nav-dropdown-color);
    padding: 10px 20px;
    font-family: var(--nav-font);
    font-size: 17px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    white-space: nowrap;
    transition: 0.3s;
  }

  .navmenu a i,
  .navmenu a:focus i {
    font-size: 12px;
    line-height: 0;
    margin-left: 5px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: 0.3s;
    background-color: rgba(var(--accent-color-rgb), 0.1);
  }

  .navmenu a i:hover,
  .navmenu a:focus i:hover {
    background-color: var(--accent-color);
    color: var(--contrast-color);
  }

  .navmenu a:hover,
  .navmenu .active,
  .navmenu .active:focus {
    color: var(--nav-dropdown-hover-color);
  }

  .navmenu .active i,
  .navmenu .active:focus i {
    background-color: var(--accent-color);
    color: var(--contrast-color);
    transform: rotate(180deg);
  }

  .navmenu .dropdown ul,
  .navmenu .megamenu ul {
    position: static;
    display: none;
    z-index: 99;
    padding: 10px 0;
    margin: 10px 20px;
    background-color: var(--nav-dropdown-background-color);
    transition: all 0.5s ease-in-out;
  }

  .navmenu .dropdown ul ul,
  .navmenu .megamenu ul ul {
    background-color: rgba(33, 37, 41, 0.1);
  }

  .navmenu .dropdown>.dropdown-active,
  .navmenu .megamenu>.dropdown-active {
    display: block;
    background-color: rgba(33, 37, 41, 0.03);
  }

  .mobile-nav-active {
    overflow: hidden;
  }

  .mobile-nav-active .mobile-nav-toggle {
    color: #fff;
    position: absolute;
    font-size: 32px;
    top: 15px;
    right: 15px;
    margin-right: 0;
    z-index: 9999;
  }

  .mobile-nav-active .navmenu {
    position: fixed;
    overflow: hidden;
    inset: 0;
    background: rgba(33, 37, 41, 0.8);
    transition: 0.3s;
  }

  .mobile-nav-active .navmenu>ul {
    display: block;
  }
}

/*--------------------------------------------------------------
# Footer
--------------------------------------------------------------*/
.footer {
  --background-color: #f4f4f4;
  color: var(--default-color);
  background-color: var(--background-color);
  font-size: 14px;
  padding-bottom: 50px;
}

.footer .footer-top {
  padding-top: 50px;
}

.footer .footer-about .logo {
  line-height: 0;
  margin-bottom: 25px;
}

.footer .footer-about .logo img {
  max-height: 40px;
  margin-right: 6px;
}

.footer .footer-about .logo span {
  color: var(--heading-color);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 1px;
  font-family: var(--heading-font);
}

.footer .footer-about p {
  font-size: 14px;
  font-family: var(--heading-font);
}

.footer .social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(var(--default-color-rgb), 0.5);
  font-size: 16px;
  color: rgba(var(--default-color-rgb), 0.5);
  margin-right: 10px;
  transition: 0.3s;
}

.footer .social-links a:hover {
  color: var(--accent-color);
  border-color: var(--accent-color);
}

.footer h4 {
  color: var(--heading-color);
  font-size: 16px;
  font-weight: bold;
  position: relative;
  padding-bottom: 12px;
}

.footer .footer-links {
  margin-bottom: 30px;
}

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

.footer .footer-links ul i {
  padding-right: 2px;
  font-size: 12px;
  line-height: 0;
}

.footer .footer-links ul li {
  padding: 10px 0;
  display: flex;
  align-items: center;
}

.footer .footer-links ul li:first-child {
  padding-top: 0;
}

.footer .footer-links ul a {
  color: rgba(var(--default-color-rgb), 0.8);
  display: inline-block;
  line-height: 1;
}

.footer .footer-links ul a:hover {
  color: var(--accent-color);
}

.footer .footer-contact p {
  margin-bottom: 5px;
}

.footer .copyright {
  padding-top: 25px;
  padding-bottom: 25px;
  background-color: rgba(var(--default-color-rgb), 0.05);
}

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

.footer .credits {
  margin-top: 6px;
  font-size: 13px;
}

/*--------------------------------------------------------------
# Scroll Top Button
--------------------------------------------------------------*/
.scroll-top {
  position: fixed;
  visibility: hidden;
  opacity: 0;
  right: 15px;
  bottom: 15px;
  z-index: 99999;
  background-color: var(--accent-color);
  width: 40px;
  height: 40px;
  border-radius: 4px;
  transition: all 0.4s;
}

.scroll-top i {
  font-size: 24px;
  color: #ffffff;
  line-height: 0;
}

.scroll-top:hover {
  background-color: rgba(var(--accent-color-rgb), 0.8);
  color: #ffffff;
}

.scroll-top.active {
  visibility: visible;
  opacity: 1;
}

/*--------------------------------------------------------------
# Preloader
--------------------------------------------------------------*/
#preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  overflow: hidden;
  background-color: var(--background-color);
  transition: all 0.6s ease-out;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

#preloader div {
  width: 13px;
  height: 13px;
  background-color: var(--accent-color);
  border-radius: 50%;
  animation-timing-function: cubic-bezier(0, 1, 1, 0);
  position: absolute;
  left: 50%;
}

#preloader div:nth-child(1) {
  left: calc(50% + 8px);
  animation: animate-preloader-1 0.6s infinite;
}

#preloader div:nth-child(2) {
  left: calc(50% + 8px);
  animation: animate-preloader-2 0.6s infinite;
}

#preloader div:nth-child(3) {
  left: calc(50% + 32px);
  animation: animate-preloader-2 0.6s infinite;
}

#preloader div:nth-child(4) {
  left: calc(50% + 56px);
  animation: animate-preloader-3 0.6s infinite;
}

@keyframes animate-preloader-1 {
  0% {
    transform: scale(0);
  }

  100% {
    transform: scale(1);
  }
}

@keyframes animate-preloader-3 {
  0% {
    transform: scale(1);
  }

  100% {
    transform: scale(0);
  }
}

@keyframes animate-preloader-2 {
  0% {
    transform: translate(0, 0);
  }

  100% {
    transform: translate(24px, 0);
  }
}

/*--------------------------------------------------------------
# Disable aos animation delay on mobile devices
--------------------------------------------------------------*/
@media screen and (max-width: 768px) {
  [data-aos-delay] {
    transition-delay: 0 !important;
  }
}

/*--------------------------------------------------------------
# Sections
--------------------------------------------------------------*/
section,
.section {
  color: var(--default-color);
  background-color: var(--background-color);
  padding: 60px 0;
  overflow: clip;
}

/*--------------------------------------------------------------
# Section Title
--------------------------------------------------------------*/
.section-title {
  text-align: center;
  padding-bottom: 60px;
}

.section-title h2 {
  font-size: 42px;
  font-weight: 700;
  position: relative;
}

.section-title h2:before,
.section-title h2:after {
  content: "";
  width: 50px;
  height: 2px;
  background: var(--accent-color);
  display: inline-block;
}

.section-title h2:before {
  margin: 0 15px 10px 0;
}

.section-title h2:after {
  margin: 0 0 10px 15px;
}

.section-title p {
  margin-bottom: 0;
}

/*--------------------------------------------------------------
# Page Title & Breadcrumbs
--------------------------------------------------------------*/
.page-title {
  color: var(--default-color);
  background-color: var(--background-color);
}

.page-title .heading {
  padding: 80px 0;
  border-top: 1px solid rgba(var(--default-color-rgb), 0.1);
}

.page-title .heading h1 {
  font-size: 38px;
  font-weight: 700;
  color: var(--heading-color);
}

.page-title nav {
  background-color: rgba(var(--default-color-rgb), 0.05);
  padding: 20px 0;
}

.page-title nav ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

.page-title nav ol li+li {
  padding-left: 10px;
}

.page-title nav ol li+li::before {
  content: "/";
  display: inline-block;
  padding-right: 10px;
  color: rgba(var(--default-color-rgb), 0.3);
}

/*--------------------------------------------------------------
# Home Page
--------------------------------------------------------------*/
/* Hero Section - Home Page
------------------------------*/
.btn-getstarted,
.btn-getstarted:focus {
  color: var(--contrast-color);
  background: var(--accent-color);
  font-size: 20px;
  padding: 10px 26px;
  margin: 0;
  border-radius: 4px;
  transition: 0.4s;
}

.btn-getstarted:hover,
.btn-getstarted:focus:hover {
  color: var(--contrast-color);
  background: rgba(var(--accent-color-rgb), 0.6);
}

.button-container {
  margin-top: 60px; /* 设置按钮与上面文字的间距 */
}

.text-center {
  text-align: center;
}

.text-center h2,
.text-center p {
  margin: 10px 0; /* 增加文本元素的外边距 */
  line-height: 1.5; /* 增加文本元素的行高 */
}

.hero {
  --default-color: #ffffff;
  --default-color-rgb: 255, 255, 255;
  --background-color: #000000;
  --background-color-rgb: 0, 0, 0;
  width: 100%;
  min-height: 100vh;
  position: relative;
  padding: 160px 0 80px 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
  object-fit: cover;
  z-index: 1;
}
/*gxy*/
.hero video-background {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
  z-index: 1; /* 将视频置于内容之下，但在暗色覆盖层之上 */
}

.hero video-background iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  object-fit: cover;
}
/* end*/

.hero:before {
  content: "";
  background: rgba(var(--background-color-rgb), 0.5);
  position: absolute;
  inset: 0;
  z-index: 2;
}

.hero .container {
  position: relative;
  z-index: 3;
}

.hero h2 {
  color: var(--contrast-color);
  margin: 0;
  font-size: 44px;
  font-weight: 700;
}

.hero p {
  color: rgba(var(--default-color-rgb), 0.8);
  margin: 5px 0 0 0;
  font-size: 20px;
}

.hero .sign-up-form {
  margin-top: 20px;
  padding: 10px;
  border-radius: 7px;
  background: #fff;
  box-shadow: 0 15px 30px 0 rgba(0, 0, 0, 0.1);
}

.hero .sign-up-form .form-control {
  border: none;
}

.hero .sign-up-form .form-control:active,
.hero .sign-up-form .form-control:focus {
  outline: none;
  box-shadow: none;
}

.hero .sign-up-form input[type=submit] {
  box-shadow: 0 15px 30px 0 rgba(0, 0, 0, 0.2);
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  padding: 8px 20px 10px 20px;
  border-radius: 7px;
  color: var(--contrast-color);
}

.hero .sign-up-form input[type=submit]:hover {
  background-color: rgba(var(--accent-color-rgb), 0.9);
}

@media (max-width: 768px) {
  .hero h2 {
    font-size: 32px;
  }

  .hero p {
    font-size: 18px;
  }
}

/* Clients Section - Home Page
------------------------------*/
.clients {
  padding: 10px 0;
}

.clients .client-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.clients .client-logo img {
  padding: 40px;
  max-width: 80%;
  transition: 0.3s;
  opacity: 0.5;
  filter: grayscale(100);
}

.clients .client-logo img:hover {
  filter: none;
  opacity: 1;
}

@media (max-width: 640px) {
  .clients .client-logo img {
    padding: 20px;
  }
}

/* About Section - Home Page
------------------------------*/
.OpenSG {
  --background-color: #fff;
}

.OpenSG .content h3 {
  font-size: 24px;
  font-weight: 500;
  line-height: 28px;
  padding: 10px 20px;
  background: rgba(var(--accent-color-rgb), 0.05);
  color: var(--accent-color);
  border-radius: 7px;
  display: inline-block;
    text-align: center; /* 居中文本 */
}
/*5.7*/
.OpenSG .content h3::after {
  content: "";
  position: absolute;
  display: block;
  width: 60px;
  height: 4px;
  background: var(--accent-color);
  left: 0;
  bottom: 0;
}

.OpenSG .content h2 {
  font-weight: 300;
}

.OpenSG .content p:last-child {
  margin-bottom: 0;
  line-height: 1.5;
    letter-spacing: 5px;
}

.OpenSG .content .read-more {
  background: var(--accent-color);
  color: var(--contrast-color);
  font-family: var(--heading-font);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: 1px;
  padding: 12px 24px;
  border-radius: 5px;
  transition: 0.3s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.OpenSG .content .read-more i {
  font-size: 18px;
  margin-left: 5px;
  line-height: 0;
  transition: 0.3s;
}

.OpenSG .content .read-more:hover {
  background: rgba(var(--accent-color-rgb), 0.8);
  padding-right: 19px;
}

.OpenSG .content .read-more:hover i {
  margin-left: 10px;
}

.OpenSG .icon-box {
  padding: 50px 40px;
  box-shadow: 0px 10px 50px rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  transition: all 0.3s ease-out 0s;
  background-color: #fff;
}

.OpenSG .icon-box i {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 32px;
  line-height: 0;
  transition: all 0.4s ease-out 0s;
  background-color: rgba(var(--accent-color-rgb), 0.05);
  color: var(--accent-color);
}

.OpenSG .icon-box h3 {
  margin-bottom: 10px;
  font-size: 24px;
  font-weight: 700;
}

.OpenSG .icon-box p {
  margin-bottom: 0;
line-height: 1.5;
}

.OpenSG .icon-box:hover i {
  background-color: var(--accent-color);
  color: var(--contrast-color);
}

.OpenSG .icon-boxes .col-md-6:nth-child(2) .icon-box,
.OpenSG .icon-boxes .col-md-6:nth-child(4) .icon-box {
  margin-top: -40px;
}

@media (max-width: 768px) {

  .OpenSG .icon-boxes .col-md-6:nth-child(2) .icon-box,
  .OpenSG .icon-boxes .col-md-6:nth-child(4) .icon-box {
    margin-top: 0;
  }
}

/* Stats Section - Home Page
------------------------------*/
.stats {
  --default-color: #ffffff;
  --default-color-rgb: 255, 255, 255;
  --background-color: #000000;
  --background-color-rgb: 0, 0, 0;
  position: relative;
  padding: 120px 0;
}

.stats img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
  object-fit: cover;
  z-index: 1;
}

.stats:before {
  content: "";
  background: rgba(var(--background-color-rgb), 0.6);
  position: absolute;
  inset: 0;
  z-index: 2;
}

.stats .container {
  position: relative;
  z-index: 3;
}

.stats .stats-item {
  padding: 30px;
  width: 100%;
}

.stats .stats-item span {
  font-size: 48px;
  display: block;
  color: var(--default-color);
  font-weight: 700;
}

.stats .stats-item p {
  padding: 0;
  margin: 0;
  font-family: var(--heading-font);
  font-size: 16px;
  font-weight: 700;
  color: rgba(var(--default-color-rgb), 0.6);
}



/* Team Section - Home Page
------------------------------*/
.team {
  --background-color: #fff;
}

.team .member {
  position: relative;
}

.team .member .member-img {
  margin: 0 80px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  border: 4px solid var(--background-color);
  box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.2);
}

@media (max-width: 1024px) {
  .team .member .member-img {
    margin: 0 60px;
  }
}

.team .member .member-img img {
  position: relative;
  z-index: 1;
}

.team .member .member-img .social {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
  padding-bottom: 20px;
  transition: 0.3s;
  visibility: hidden;
  opacity: 0;
}

.team .member .member-img .social a {
  transition: 0.3s;
  color: var(--contrast-color);
  font-size: 20px;
  margin: 0 8px;
}

.team .member .member-img .social a:hover {
  color: var(--accent-color);
}

.team .member .member-info {
  margin-top: 30px;
}

.team .member .member-info h4 {
  font-weight: 700;
  margin-bottom: 6px;
  font-size: 18px;
}

.team .member .member-info span {
  font-style: italic;
  display: block;
  font-size: 15px;
  color: rgba(var(--default-color-rgb), 0.6);
  margin-bottom: 10px;
}

.team .member .member-info p {
  margin-bottom: 0;
  font-size: 14px;
}

.team .member:hover .member-img .social {
  padding-bottom: 0;
  visibility: visible;
  opacity: 1;
}


/* Contact Section - Home Page
------------------------------*/
.contact .info-item {
  background: rgba(var(--default-color-rgb), 0.03);
  padding: 30px;
}

.contact .info-item i {
  font-size: 38px;
  line-height: 0;
  color: var(--accent-color);
}

.contact .info-item h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 20px 0 10px 0;
}

.contact .info-item p {
  padding: 0;
  line-height: 24px;
  font-size: 14px;
  margin-bottom: 0;
}

.contact .php-email-form {
  background: rgba(var(--default-color-rgb), 0.03);
  padding: 30px;
  height: 100%;
}

.contact .php-email-form .error-message {
  display: none;
  background: #df1529;
  color: #ffffff;
  text-align: left;
  padding: 15px;
  margin-bottom: 24px;
  font-weight: 600;
}

.contact .php-email-form .sent-message {
  display: none;
  color: #ffffff;
  background: #059652;
  text-align: center;
  padding: 15px;
  margin-bottom: 24px;
  font-weight: 600;
}

.contact .php-email-form .loading {
  display: none;
  background: var(--background-color);
  text-align: center;
  padding: 15px;
  margin-bottom: 24px;
}

.contact .php-email-form .loading:before {
  content: "";
  display: inline-block;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  margin: 0 10px -6px 0;
  border: 3px solid var(--accent-color);
  border-top-color: var(--background-color);
  animation: animate-loading 1s linear infinite;
}

.contact .php-email-form input[type=text],
.contact .php-email-form input[type=email],
.contact .php-email-form textarea {
  font-size: 14px;
  padding: 10px 15px;
  box-shadow: none;
  border-radius: 0;
  color: var(--default-color);
  background-color: rgba(var(--background-color-rgb), 0.5);
  border-color: rgba(var(--default-color-rgb), 0.2);
}

.contact .php-email-form input[type=text]:focus,
.contact .php-email-form input[type=email]:focus,
.contact .php-email-form textarea:focus {
  border-color: var(--accent-color);
}

.contact .php-email-form input[type=text]::-moz-placeholder,
.contact .php-email-form input[type=email]::-moz-placeholder,
.contact .php-email-form textarea::-moz-placeholder {
  color: rgba(var(--default-color-rgb), 0.3);
}

.contact .php-email-form input[type=text]::placeholder,
.contact .php-email-form input[type=email]::placeholder,
.contact .php-email-form textarea::placeholder {
  color: rgba(var(--default-color-rgb), 0.3);
}

.contact .php-email-form button[type=submit] {
  background: var(--accent-color);
  color: var(--contrast-color);
  border: 0;
  padding: 10px 30px;
  transition: 0.4s;
  border-radius: 4px;
}

.contact .php-email-form button[type=submit]:hover {
  background: rgba(var(--accent-color-rgb), 0.8);
}

@keyframes animate-loading {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}



.u-background-video {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 110%;
  height: 250%;
  z-index: 0; /* 确保在内容之下 */
}

.embed-responsive {
  position: relative;
/*  padding-bottom: 56.25%;  用于16:9的视频宽高比 */
  height: 100vh;
  overflow: hidden;
}

.embed-responsive-item {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 110%;
  border: none;
  object-fit: cover; 
  transform: scale(1.2); /* 放大视频 */
  transform-origin: center center; /* 设置放大的基点为视频的中心 */
}

.citation {
  position: absolute;
  bottom: 10px;
  right: 200px;
  color: white; /* 调整引用文本的颜色 */
  z-index: 9999; 
}

.timeline h2 {
  font-size: 1.25rem; /* Adjust the font size as needed */
}

.timeline {
  position: relative;
  padding: 0;
  list-style: none;
}

.timeline:before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px; /* Adjust so that the line starts where you want it relative to the container */
  width: 2px;
  background-color: #e9ecef;
}

.timeline-icon {
 position: absolute;
  top: 50%; /* Center the icon vertically in the timeline item */
  left: 10px; /* Match this with the 'left' value of .timeline:before */
  transform: translateY(-50%); /* Only move the icon vertically */
  width: 20px;
  height: 20px;
  background-color: #007bff;
  color: #fff;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 5;
}

.timeline-item {
  position: relative;
  padding-left: 80px; /* Increase padding to push content away from the icon */
  margin-bottom: 20px; /* Adjust space between items */
}

.timeline-content {
  background-color: #fff;
  padding: 15px; /* Add padding inside the content boxes */
  border-radius: 6px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.1); /* Optional: Adds a subtle shadow for depth */
  position: relative;
  left: 10px; /* Adjusts left position to align with the adjusted timeline */
}


.u-layout-cell {
/*
  flex-basis: 50%;  Assign the width for the flex item, but allow it to grow or shrink as needed 
  flex-grow: 1;
  flex-shrink: 1;
*/
flex: 1;
width: 100%;
}

.u-layout-row {
  display: flex;
  flex-direction: row;
  justify-content: center;
  flex-wrap: wrap;
/*  width: 50%;  Each side takes up half of the container */
}


.text-container {
  padding: 0 15px; /* Adjust padding to center the text, you can increase or decrease it */
  text-align: justify; /* This will justify your text if that's what you desire */
  display: flex;
  flex-direction: column;
  justify-content: center; /* This vertically centers your content in the flex container */

}

.gray-text {
    color: #959595; /* Here you can replace it with the gray color value you want. */
}

# Tabs
--------------------------------------------------------------*/
.tabs .nav-tabs {
  border: 0;
}

.tabs .nav-link {
  border: 1px solid #b9b9b9;
  padding: 15px;
  transition: 0.3s;
  color: #111111;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.tabs .nav-link i {
  padding-right: 15px;
  font-size: 48px;
}

.tabs .nav-link h4 {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
}

.tabs .nav-link:hover {
  color: #e03a3c;
}

.tabs .nav-link.active {
  background: #e03a3c;
  color: #fff;
  border-color: #e03a3c;
}

@media (max-width: 768px) {
  .tabs .nav-link i {
    padding: 0;
    line-height: 1;
    font-size: 36px;
  }
}

@media (max-width: 575px) {
  .tabs .nav-link {
    padding: 15px;
  }

  .tabs .nav-link i {
    font-size: 24px;
  }
}

.tabs .tab-content {
  margin-top: 30px;
}

.tabs .tab-pane h3 {
  font-weight: 600;
  font-size: 26px;
}

.tabs .tab-pane ul {
  list-style: none;
  padding: 0;
}

.tabs .tab-pane ul li {
  padding-bottom: 10px;
}

.tabs .tab-pane ul i {
  font-size: 20px;
  padding-right: 4px;
  color: #e03a3c;
}

.tabs .tab-pane p:last-child {
  margin-bottom: 0;
}


.team-section {
  background: #f0f0f0;
  padding: 20px;
  text-align: center;
}

.team-container {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
}

.team-member {
  margin: 10px;
  padding: 10px;
  background: white;
  border-radius: 10px;
  width: 300px;
}

.team-image {
  width: 100%;
  border-radius: 50%;
  height: auto;
}

.team-links a {
  display: block;
  margin: 5px 0;
  color: blue;
  text-decoration: none;
}

.team-links a:hover {
  text-decoration: underline;
}

.infrastructuremap {
    max-width: 1350px;
    margin: 0 auto;
    width: 100%; /* Ensures the container uses the full available width up to the max-width */
    padding: 0 15px; /* Optional: Adds some padding for content inside the container */
    box-sizing: border-box; /* Ensures padding and border are included in the total width and height */
}

/*--------------------------------------------------------------
# Call To Action Section
--------------------------------------------------------------*/
.call-to-action {
  --background-color: #000000;
  --default-color: #ffffff;
  --contrast-color: #ffffff;
  padding: 80px 0;
  position: relative;
  clip-path: inset(0);
}

.call-to-action img {
  position: fixed;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.call-to-action:before {
  content: "";
  background: color-mix(in srgb, var(--background-color), transparent 50%);
  position: absolute;
  inset: 0;
  z-index: 2;
}

.call-to-action .container {
  position: relative;
  z-index: 3;
}

.call-to-action h3 {
  font-size: 28px;
  font-weight: 700;
  color: var(--default-color);
}

.call-to-action p {
  color: var(--default-color);
}

.call-to-action .cta-btn {
  font-family: var(--heading-font);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: 1px;
  display: inline-block;
  padding: 12px 40px;
  border-radius: 5px;
  transition: 0.5s;
  margin: 10px;
  border: 2px solid var(--contrast-color);
  color: var(--contrast-color);
}

.call-to-action .cta-btn:hover {
  background: var(--accent-color);
  border: 2px solid var(--accent-color);
}