.v5-bridge-header {
  --v5-bridge-header-height: 82px;
  position: sticky;
  z-index: 1000;
  top: 0;
  min-height: var(--v5-bridge-header-height);
  border-bottom: 1px solid rgba(216, 181, 80, 0.28);
  background: rgba(21, 21, 19, 0.96);
  color: #f5f1e8;
  backdrop-filter: blur(14px);
}

.v5-bridge-header-inner {
  display: flex;
  width: min(1180px, calc(100% - 40px));
  min-height: var(--v5-bridge-header-height);
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.v5-bridge-brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.v5-bridge-brand-mark {
  display: inline-grid;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  place-items: center;
  border: 1px solid rgba(216, 181, 80, 0.72);
  border-radius: 50%;
  color: #d8b550;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.v5-bridge-brand-copy {
  display: grid;
  gap: 2px;
}

.v5-bridge-brand-name {
  font-size: 15px;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.v5-bridge-course-name {
  color: rgba(245, 241, 232, 0.68);
  font-size: 11px;
  line-height: 1.3;
}

.v5-bridge-desktop-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.v5-bridge-nav-link {
  display: inline-flex;
  min-height: 44px;
  padding: 0 13px;
  align-items: center;
  border-radius: 999px;
  color: rgba(245, 241, 232, 0.82);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.v5-bridge-nav-link:hover {
  background: rgba(216, 181, 80, 0.12);
  color: #f5f1e8;
}

.v5-bridge-brand:focus-visible,
.v5-bridge-nav-link:focus-visible,
.v5-bridge-mobile-summary:focus-visible,
.v5-bridge-business-link:focus-visible,
.v5-bridge-legal-link:focus-visible {
  outline: 3px solid #d8b550;
  outline-offset: 3px;
}

.v5-bridge-mobile-menu {
  display: none;
  position: relative;
}

.v5-bridge-mobile-summary {
  display: inline-flex;
  min-width: 68px;
  min-height: 44px;
  padding: 0 12px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(216, 181, 80, 0.42);
  border-radius: 999px;
  color: #f5f1e8;
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
  list-style: none;
}

.v5-bridge-mobile-summary::-webkit-details-marker {
  display: none;
}

.v5-bridge-mobile-icon {
  width: 6px;
  height: 6px;
  border-right: 2px solid #d8b550;
  border-bottom: 2px solid #d8b550;
  transform: rotate(45deg) translateY(-2px);
}

.v5-bridge-mobile-menu[open] .v5-bridge-mobile-icon {
  transform: rotate(225deg) translate(-1px, -1px);
}

.v5-bridge-mobile-nav {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  display: grid;
  width: min(280px, calc(100vw - 32px));
  padding: 10px;
  border: 1px solid rgba(216, 181, 80, 0.3);
  border-radius: 16px;
  background: #1d1d1a;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.38);
}

.v5-bridge-mobile-nav .v5-bridge-nav-link {
  width: 100%;
  border-radius: 10px;
}

.v5-bridge-footer {
  border-top: 1px solid rgba(216, 181, 80, 0.25);
  background: #11110f;
  color: #f5f1e8;
}

.v5-bridge-footer-inner {
  display: grid;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 54px 0 40px;
  gap: 24px;
}

.v5-bridge-footer-brand {
  display: grid;
  gap: 4px;
}

.v5-bridge-footer-brand-name {
  color: #d8b550;
  font-size: 18px;
}

.v5-bridge-footer-course-name {
  color: rgba(245, 241, 232, 0.7);
  font-size: 13px;
}

.v5-bridge-business {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  color: rgba(245, 241, 232, 0.68);
  font-size: 12px;
  line-height: 1.6;
}

.v5-bridge-business-item {
  display: inline-flex;
  min-height: 24px;
  align-items: baseline;
  gap: 7px;
  color: inherit;
  text-decoration: none;
}

.v5-bridge-business-label {
  color: rgba(245, 241, 232, 0.92);
  font-weight: 700;
}

.v5-bridge-legal-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
}

.v5-bridge-legal-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: #f5f1e8;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.v5-bridge-risk-notice {
  max-width: 780px;
  margin: 0;
  color: rgba(245, 241, 232, 0.58);
  font-size: 11px;
  line-height: 1.7;
}

.v5-bridge-copyright {
  margin: 0;
  color: rgba(245, 241, 232, 0.48);
  font-size: 11px;
}

@media (max-width: 900px) {
  .v5-bridge-header {
    --v5-bridge-header-height: 70px;
  }

  .v5-bridge-header-inner,
  .v5-bridge-footer-inner {
    width: min(100% - 28px, 1180px);
  }

  .v5-bridge-brand-mark {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
  }

  .v5-bridge-brand-name {
    font-size: 13px;
  }

  .v5-bridge-course-name {
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .v5-bridge-desktop-nav {
    display: none;
  }

  .v5-bridge-mobile-menu {
    display: block;
  }

  .v5-bridge-footer-inner {
    padding: 42px 0 32px;
  }

  .v5-bridge-business {
    display: grid;
    gap: 6px;
  }
}