nav {
  position: fixed;
  z-index: 9999999999;
  width: 100%;
  background-color: transparent;
  font-family: "Source Han Sans CN Normal";
}
nav.active .first-line-nav:before,
nav.active .second-line-nav:before {
  opacity: 1;
}
nav:before {
  content: "";
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: black;
  transition: 0.3s;
  height: 0%;
}
nav:has(.second-line-nav.active):before {
  height: 100%;
}
@media (max-width: 1200px) {
  nav .second-line-nav:not(.active) {
    height: 0;
    pointer-events: none;
  }
  nav .second-line-nav:not(.active) * {
    opacity: 0;
  }
}

ul {
  position: relative;
  z-index: 1;
  text-decoration: none;
  list-style: none;
  display: flex;
  flex-direction: column;
}

.first-line-nav {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 14px 0;
}
@media (min-width: 1201px) {
  .first-line-nav:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    width: 100%;
    opacity: 0;
    background-color: #1f6779;
    z-index: 0;
    transition: 0.25s;
    pointer-events: none;
  }
}
@media (max-width: 1200px) {
  .first-line-nav {
    justify-content: space-between;
    padding: 20px 15px;
    background-color: black;
  }
}
.first-line-nav li {
  z-index: 1;
}
.first-line-nav .hamburger {
  display: none;
}
@media (max-width: 1200px) {
  .first-line-nav .hamburger {
    display: block;
    cursor: pointer;
  }
}
.first-line-nav .hamburger-icon {
  width: 29px;
}

nav:has(ul > .second-line-nav.hide) {
  transition: 0.3s;
  -webkit-clip-path: polygon(0 0, 100% 0, 100% 50%, 0 50%);
          clip-path: polygon(0 0, 100% 0, 100% 50%, 0 50%);
}

.second-line-nav {
  position: relative;
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  padding: 10px 0 15px;
  transition: 0.3s;
}
.second-line-nav li {
  position: relative;
  text-align: center;
}
@media (max-width: 767px) {
  .second-line-nav li {
    max-width: 330px;
    width: 100%;
  }
}
.second-line-nav li.has-child .plus-button {
  position: absolute;
  top: 0.75rem;
  right: 0;
  background: url(../../images/icons/plus-icon.svg) center center no-repeat;
  background-size: contain;
  width: 20px;
  height: 20px;
  aspect-ratio: 1;
  margin: auto;
}
.second-line-nav li.active ul.drop-down {
  opacity: 1;
  pointer-events: all;
}
@media (max-width: 767px) {
  .second-line-nav li.active ul.drop-down {
    display: block;
    width: -moz-fit-content;
    width: fit-content;
    margin: auto;
  }
}
.second-line-nav li ul.drop-down {
  width: -moz-max-content;
  width: max-content;
}
@media (max-width: 767px) {
  .second-line-nav li ul.drop-down {
    display: none;
  }
}
@media (min-width: 768px) {
  .second-line-nav li ul.drop-down {
    position: absolute;
    transform: translateX(-50%);
    right: 0;
    margin: 0 auto;
    left: 50%;
    top: 100%;
    padding-top: 0.8rem;
    opacity: 0;
    pointer-events: none;
    transition: 0.3s;
  }
}
.second-line-nav li ul.drop-down li {
  margin: 0;
  padding: 0.5rem 1rem;
  background: black;
}
@media (max-width: 767px) {
  .second-line-nav li ul.drop-down li,
  .second-line-nav li ul.drop-down li a {
    font-size: 18px;
  }
}
.second-line-nav li ul.drop-down li a:before {
  display: none;
}
@media (min-width: 1201px) {
  .second-line-nav:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    width: 100%;
    opacity: 0;
    background-color: #1f6779;
    z-index: 0;
    transition: 0.25s;
    pointer-events: none;
  }
}
@media (max-width: 1200px) {
  .second-line-nav {
    -webkit-clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
            clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    flex-direction: column;
    background-color: black;
    z-index: 999;
    align-items: center;
    padding: 20px 15px 25px;
    gap: 12px;
    margin-top: -1px;
  }
}
.second-line-nav.active {
  display: flex;
  -webkit-clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
          clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
}
.second-line-nav.hide {
  opacity: 0;
  pointer-events: none;
  transition: 0.15s;
}
.second-line-nav .nav-link {
  position: relative;
  transition: 0.15s;
  font-family: "Source Han Sans CN Light";
  letter-spacing: 1.2px;
  font-size: 14px;
}
@media (max-width: 1200px) {
  .second-line-nav .nav-link {
    font-size: clamp(28px, 2.833vw, 2.833vw);
  }
}
.second-line-nav .nav-link:before {
  content: "";
  position: absolute;
  bottom: -0.25rem;
  left: 0;
  right: 0;
  margin: auto;
  height: 2px;
  background: #ffffff;
  transition: 0.3s;
  width: 0%;
  transform-origin: left;
}
@media (max-width: 1200px) {
  .second-line-nav .nav-link:before {
    display: none;
  }
}
.second-line-nav .nav-link:hover {
  color: #ffffff;
}
.second-line-nav .nav-link:hover:before {
  opacity: 1;
  width: 60%;
}
@media (max-width: 1200px) {
  .second-line-nav .nav-link:hover:before {
    display: none;
  }
}
.second-line-nav .nav-link.active {
  color: #ffffff;
  font-weight: 700;
}
.second-line-nav .nav-link.active:before {
  opacity: 1;
  width: 60%;
}
@media (max-width: 1200px) {
  .second-line-nav .nav-link.active:before {
    display: none;
  }
}
@media (max-width: 1200px) {
  .second-line-nav .nav-link.active {
    color: white;
  }
}

li {
  color: white;
  text-decoration: none;
  align-self: center;
  font-size: 16px;
  font-family: "Source Han Sans CN Normal";
}
li a {
  color: white;
  text-decoration: none;
  text-decoration-color: none;
  font-family: "Source Han Sans CN Normal";
}
li a:visited {
  color: white;
  text-decoration: none;
  text-decoration-color: none;
}