/* V21 顶导 */
.xx-top-nav {
  height: 68px;
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.92);
}

.xx-top-nav-inner {
  max-width: 1440px;
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.xx-brand {
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 20px;
  font-weight: 900;
  border: none;
  background: none;
  cursor: pointer;
  color: #0f172a;
  padding: 0;
}

.xx-logo {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: linear-gradient(135deg, #818cf8, #4f46e5);
  display: grid;
  place-items: center;
  color: #fff;
  box-shadow: 0 12px 26px rgba(79, 70, 229, 0.24);
  font-size: 20px;
}

.xx-nav-links {
  display: flex;
  gap: 23px;
  color: #64748b;
  font-weight: 750;
}

.xx-nav-links button {
  border: none;
  background: none;
  cursor: pointer;
  color: #64748b;
  padding: 0;
  font-size: 14px;
  font-weight: 750;
  transition: color 0.2s;
}

.xx-nav-links button:hover {
  color: #4f46e5;
}

.xx-nav-links button.active {
  color: #4f46e5;
}

.xx-user-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: #0f172a;
  font-size: 14px;
}

.xx-avatar {
  width: 34px;
  height: 34px;
  background: #eef2ff;
  color: #4338ca;
}