nav.m_nav {
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
  overflow: hidden;
  overflow-y: scroll;
  transform: translateY(115%);
  width: 100vw;
  height: 100vh;
  border-bottom: 1px solid #ffffff;
  transition: all 600ms cubic-bezier(0.8, 0, 0.33, 1);
}
nav.m_nav::-webkit-scrollbar {
  width: 0;
  background: rgba(255, 255, 255, 0.3);
}
nav.m_nav.nav-open {
  background: #ffffff;
  z-index: 9991;
  transform: translateY(0);
}

.menu-btn {
  cursor: pointer;
  z-index: 99992;
  color: var(--grey1);
  transition: 0.36s all;
}

.nav-open .menu-btn {
  background: none;
  top: 0.6875rem;
  right: 0.5625rem;
  position: fixed;
}
.menu-btn .line {
  padding: 0;
  width: 1.875rem;
  background: #ffffff;
  height: 1px;
  margin: 0.375rem 0.3125rem;
  transition: all 700ms cubic-bezier(0.9, 0, 0.33, 1);
}
.nav-open .menu-btn .line {
  background: var(--grey1);
}
.boxshow .line {
  background: #ffffff;
}
.menu-btn .line.line--1 {
  width: 1.5625rem;
  transform: rotate(0) translateY(0);
  margin-left: auto;
}
.menu-btn .line.line--1.line-cross {
  width: 1.875rem;
  transform: rotate(45deg) translateY(0.125rem) translateX(0.25rem);
  background-color: #000000;
}
.menu-btn .line.line--2 {
  width: 0.9375rem;
  transform: translateX(0);
}
.menu-btn .line.line--2.line-fade-out {
  width: 1.5625rem;
  transform: translate(1.875rem);
  opacity: 0;
}
.menu-btn .line.line--3 {
  width: 1.5625rem;
  transform: rotate(0) translateY(0);
}
.menu-btn .line.line--3.line-cross {
  width: 1.875rem;
  transform: rotate(-45deg) translateY(-0.4375rem) translateX(0.4375rem);
  background-color: #000000;
}

@media (min-width: 992px) {
  a.menu-btn,
  .nav-open a.menu-btn {
    background: none;
    color: unset;
    position: relative;
  }
  .nav-open .menu-btn {
    display: block !important;
  }
}

.nav-links {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  transform: translateY(0);
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.nav-links.fade-in {
  opacity: 1;
  transform: translateY(0);
}

.nav-links .navsub {
  display: none;
  font-size: 1.125rem;
}
.nav-links .nav-item {
  cursor: pointer;
}
.nav-links .nav-item .link {
  width: 100%;
  font-size: 1.25rem;
  border-bottom: 1px solid #eee;
  padding: 1.0625rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-links .nav-item .link.active {
  background-color: var(--base_color);
  color: #ffffff;
}
.nav-links .nav-item .link.active > a {
  color: #ffffff;
}

.nav-links .nav-item div.link:after {
  content: "\e7e7";
  font-family: "iconfont2022";
}
.nav-links .nav-item: first-child .link {
  font-weight: bold;
  border-bottom: none;
  margin-bottom: 1.25rem;
}
.nav-links .nav-item: first-child:hover .link {
  background: none;
}
.nav-links .nav-item: last-child .link {
  border-bottom: none;
}
.nav-links .nav-item.active .link {
  background-color: #efefef;
}
.nav-links .nav-item.active .navsub {
  background-color: #fafafa;
}

.nav-links .nav-item:hover .link,
.nav-links .nav-item.active .link {
  color: #ffffff !important;
  background: var(--base_color) !important;
}
.nav-links .nav-item:hover .link a,
.nav-links .nav-item.active .link a {
  color: #ffffff;
  background: var(--base_color);
}
.nav-links .nav-item.active .link:after {
  transform: rotate(135deg);
  transition: 0.2s all linear;
}
.nav-links .nav-item.active .link a {
  font-weight: bold;
}
.nav-links .nav-item.active .navsub {
  display: block;
}
.nav-links .nav-item.active .navsub a {
  animation: fadeIn 0.5s;
  width: 100%;
  padding: 1.0625rem 0;
  line-height: 1.2;
}
.nav-links .nav-subitem {
  overflow: hidden;
  padding: 0 1.875rem;
  color: #444444;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-links .nav-subitem a {
  display: block;
}
.nav-links .nav-subitem a.active,
.nav-links .nav-subitem a:hover,
.nav-links .nav-subitem a.active {
  color: var(--base_color);
}