/* =========================================================
   V1.4.1 导航合并优化
   顶部菜单：产品中心 / 技术中心 / 电源计算器 / 服务支持 / 关于雄麦
   ========================================================= */

/* 顶部整体收紧，适配更多页面 */
.nav-menu-v141 {
  gap: 8px;
  flex-wrap: nowrap;
}

.nav-menu-v141 > a,
.nav-menu-v141 .nav-drop-btn {
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  color: rgba(236,243,255,.78);
  background: transparent;
  border: 0;
  text-decoration: none;
  font-weight: 850;
  font-size: 15px;
  font-family: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
  transition: .2s ease;
}

.nav-menu-v141 > a:hover,
.nav-menu-v141 > a.active,
.nav-menu-v141 .nav-dropdown:hover > .nav-drop-btn,
.nav-menu-v141 .nav-dropdown.active > .nav-drop-btn {
  color: #2ee8ff;
  background: rgba(46,232,255,.11);
}

.nav-drop-btn span {
  display: inline-flex;
  color: rgba(236,243,255,.55);
  font-size: 13px;
  transition: transform .2s ease;
}

.nav-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.nav-dropdown:hover .nav-drop-btn span {
  transform: rotate(180deg);
}

/* PC 下拉菜单 */
.nav-drop-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  width: 270px;
  padding: 10px;
  border-radius: 20px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(46,232,255,.075), rgba(255,255,255,.035)),
    rgba(5,8,18,.97);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 28px 90px rgba(0,0,0,.48);
  transition: .22s ease;
}

.nav-dropdown:hover .nav-drop-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-drop-menu::before {
  content: "";
  position: absolute;
  top: -16px;
  left: 0;
  right: 0;
  height: 16px;
}

.nav-drop-menu a {
  display: block;
  padding: 12px 13px;
  border-radius: 14px;
  color: rgba(236,243,255,.84);
  text-decoration: none;
  background: transparent;
  transition: .2s ease;
}

.nav-drop-menu a:hover,
.nav-drop-menu a.active {
  background: rgba(46,232,255,.11);
  color: #2ee8ff;
}

.nav-drop-menu strong {
  display: block;
  font-size: 15px;
  line-height: 1.35;
  color: inherit;
}

.nav-drop-menu small {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.45;
  color: rgba(236,243,255,.56);
}

/* 防止右侧下拉超出屏幕 */
.nav-dropdown:nth-last-child(1) .nav-drop-menu,
.nav-dropdown:nth-last-child(2) .nav-drop-menu {
  left: auto;
  right: 0;
  transform: translateY(8px);
}

.nav-dropdown:nth-last-child(1):hover .nav-drop-menu,
.nav-dropdown:nth-last-child(2):hover .nav-drop-menu {
  transform: translateY(0);
}

/* 移动端菜单分组 */
@media(max-width: 900px) {
  .nav-menu-v141 {
    gap: 8px;
    flex-wrap: nowrap;
  }

  .nav-menu-v141 > a,
  .nav-menu-v141 .nav-drop-btn {
    width: 100%;
    min-height: 44px;
    justify-content: space-between;
    border-radius: 14px;
    padding: 0 14px;
    background: rgba(255,255,255,.035);
    color: rgba(236,243,255,.86);
  }

  .nav-menu-v141 > a.active,
  .nav-menu-v141 .nav-dropdown.active > .nav-drop-btn {
    color: #2ee8ff;
    background: rgba(46,232,255,.11);
  }

  .nav-dropdown {
    display: block;
    width: 100%;
  }

  .nav-dropdown:hover .nav-drop-menu {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: none;
  }

  .nav-dropdown.open .nav-drop-menu {
    display: block;
    position: static;
    width: 100%;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    margin-top: 8px;
    padding: 8px;
    border-radius: 16px;
    background: rgba(0,0,0,.18);
    border: 1px solid rgba(255,255,255,.08);
    box-shadow: none;
  }

  .nav-dropdown.open .nav-drop-btn span {
    transform: rotate(180deg);
  }

  .nav-drop-menu {
    display: none;
  }

  .nav-drop-menu a {
    padding: 11px 12px;
    border-radius: 12px;
  }

  .nav-drop-menu small {
    display: none;
  }
}

/* 中等宽度 PC，进一步压缩导航间距 */
@media(min-width: 901px) and (max-width: 1180px) {
  .nav-menu-v141 > a,
  .nav-menu-v141 .nav-drop-btn {
    padding: 0 10px;
    font-size: 14px;
  }

  .nav-wrap {
    gap: 18px;
  }
}