.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  overflow: visible;
  border: 0;
  border-bottom: 1px solid rgba(21, 34, 29, .13);
  background: rgba(247, 242, 232, .9);
  backdrop-filter: blur(12px);
}

.site-nav .logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  color: #15221d;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: .02em;
  white-space: nowrap;
}

.site-nav .logo img {
  display: block;
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.site-nav .logo sub {
  margin-left: 2px;
  color: #d94f3d;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  vertical-align: baseline;
}

.site-nav .spacer {
  flex: 1;
}

.site-nav .nav-link {
  padding: 5px 10px;
  border-radius: 8px;
  background: transparent;
  color: #647069;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: color .15s, background .15s;
}

.site-nav .nav-link:hover,
.site-nav .nav-link.active {
  background: transparent;
  color: #d94f3d;
}

.site-nav .nav-cta {
  padding: 8px 16px;
  border-radius: 999px;
  background: #15221d;
  color: #fff;
}

.site-nav .nav-cta:hover {
  background: #244f3d;
  color: #fff;
}

.site-nav .auth-slot {
  width: 148px;
  min-height: 32px;
  display: flex;
  flex: 0 0 148px;
  align-items: center;
  justify-content: flex-end;
}

.site-nav .mobile-menu-button,
.site-nav .mobile-nav-backdrop,
.site-nav .mobile-nav-panel {
  display: none;
}

.site-nav .mobile-menu-button {
  align-items: center;
  gap: 7px;
  height: 38px;
  padding: 0 10px;
  border: 1px solid rgba(21, 34, 29, .13);
  border-radius: 10px;
  background: rgba(255, 255, 255, .45);
  color: #15221d;
  font: 800 13px/1 "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  cursor: pointer;
}

.site-nav .menu-icon {
  position: relative;
  width: 18px;
  height: 14px;
  flex: 0 0 auto;
}

.site-nav .menu-icon i {
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .2s ease, top .2s ease, opacity .2s ease;
}

.site-nav .menu-icon i:nth-child(1) { top: 0; }
.site-nav .menu-icon i:nth-child(2) { top: 6px; }
.site-nav .menu-icon i:nth-child(3) { top: 12px; }

.site-nav .mobile-menu-button[aria-expanded="true"] .menu-icon i:nth-child(1) {
  top: 6px;
  transform: rotate(45deg);
}

.site-nav .mobile-menu-button[aria-expanded="true"] .menu-icon i:nth-child(2) {
  opacity: 0;
}

.site-nav .mobile-menu-button[aria-expanded="true"] .menu-icon i:nth-child(3) {
  top: 6px;
  transform: rotate(-45deg);
}

.site-nav .mobile-nav-panel a {
  min-height: 52px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid rgba(21, 34, 29, .13);
  border-radius: 12px;
  background: #f7f2e8;
  color: #15221d;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.site-nav .mobile-nav-panel a:hover,
.site-nav .mobile-nav-panel a.active {
  color: #d94f3d;
}

.site-nav .mobile-nav-panel .mobile-nav-icon {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 8px;
  background: #fff;
  color: #d94f3d;
  font: 900 13px "Noto Serif SC", "Songti SC", "SimSun", serif;
}

.site-nav .mobile-nav-panel .mobile-nav-primary {
  grid-column: 1 / -1;
  justify-content: center;
  border-color: #15221d;
  background: #15221d;
  color: #fff;
}

.site-nav .mobile-nav-panel .mobile-nav-primary:hover {
  border-color: #244f3d;
  background: #244f3d;
  color: #fff;
}

.site-nav + .membership-hero,
.site-nav + main .hero {
  margin-top: 72px;
}

@media (max-width: 1100px) {
  .site-nav .desktop-link {
    display: none;
  }

  .site-nav .mobile-menu-button {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav .mobile-nav-backdrop {
    position: fixed;
    inset: 72px 0 0;
    display: block;
    z-index: 99;
    background: rgba(21, 34, 29, .3);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    backdrop-filter: blur(2px);
    transition: opacity .2s ease, visibility .2s ease;
  }

  .site-nav .mobile-nav-backdrop.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .site-nav .mobile-nav-panel {
    position: absolute;
    top: calc(100% + 1px);
    left: 12px;
    right: 12px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 14px;
    border: 1px solid rgba(21, 34, 29, .13);
    border-radius: 0 0 18px 18px;
    background: #fffdf8;
    box-shadow: 0 20px 42px rgba(21, 34, 29, .18);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
  }

  .site-nav .mobile-nav-panel.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav .auth-slot {
    width: auto;
    min-width: 0;
    flex: 0 0 auto;
    margin-left: 0;
  }

  body.mobile-menu-open {
    overflow: hidden;
  }

  .site-nav + .membership-hero,
  .site-nav + main .hero {
    margin-top: 72px;
  }
}

@media (max-width: 600px) {
  .site-nav {
    height: 64px;
    padding: 0 16px;
  }

  .site-nav .logo {
    font-size: 17px;
  }

  .site-nav .logo img {
    width: 32px;
    height: 32px;
  }

  .site-nav .logo sub {
    display: none;
  }

  .site-nav .nav-cta {
    display: none;
  }

  .site-nav .mobile-menu-button {
    margin-left: auto;
  }

  .site-nav .mobile-nav-backdrop {
    top: 64px;
  }

  .site-nav .auth-slot .user-badge {
    max-width: 92px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .site-nav + .membership-hero,
  .site-nav + main .hero {
    margin-top: 64px;
  }

  .site-nav + .page-header {
    margin-top: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav *,
  .site-nav *::before,
  .site-nav *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}