.header {
  background-color: #fff;
  z-index: 1030;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

html {
  scroll-padding-top: 88px;
}

.header nav {
  min-height: 72px;
  width: 100%;
}

.navbar-brand-site {
  background-image: url('../image/ecopower-logo-bg.png');
  width: 209px;
  max-width: calc(100% - 52px);
  min-height: 56px;
  border-right: 1px solid rgba(128, 128, 128, 0.168);
  margin: 0 !important;
  margin-right: 1rem !important;
  padding: 10px 12px 10px 0 !important;
}

.header-logo-img {
  height: 48px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.header-brand-text {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.2;
  color: #253745;
}

.header-brand-sub {
  font-size: 11px;
  color: #888;
}

.brand-group {
  gap: 12px;
}

.brand-group span {
  font-weight: var(--bold);
  font-size: 22px;
  font-family: var(--primary-font);
}

.brand-group h6 {
  font-size: 12px !important;
  color: var(--grey);
  font-family: var(--primary-font);
  margin: 0;
  font-weight: var(--regular) !important;
}

.nav-top {
  padding: 15px 0px 15px 40px;
}

.nav-top-left a {
  color: var(--grey)
}

.nav-top-left a:hover {
  color: var(--green);
}

.nav-top-left .nav-top-call:hover svg path {
  fill: var(--green);
}

.nav-top-left .nav-top-email:hover svg path {
  stroke: var(--green);
}

.nav-top-left {
  gap: 25px;
}

.nav-top-right button {
  border: none;
  background-color: transparent !important;
}

.nav-top-right input {
  border: none;
  padding: 0 3px;
  outline: none;
}

.navbar-nav.nav-down-left.header-nav-links {
  gap: 30px;
  align-items: center;
}

@media (min-width: 992px) {
  .navbar-collapse-main {
    align-items: center;
    flex-wrap: nowrap;
    min-width: 0;
  }

  /* 中间菜单可伸缩，右侧工具条不被压扁 */
  .header-nav-links {
    flex: 1 1 auto;
    min-width: 0;
    justify-content: center;
  }

  .header-nav-tools {
    flex: 0 0 auto;
    flex-wrap: nowrap !important;
    align-items: center !important;
    width: auto !important;
    max-width: none;
    margin-top: 0 !important;
    padding-top: 0 !important;
    padding-right: 8px;
    border-top: none !important;
    gap: 14px !important;
    box-sizing: border-box;
  }

  /* 搜索框在桌面端固定上限，避免抢光宽度 */
  .header-search-form {
    width: auto !important;
    max-width: 220px;
    min-width: 168px;
    flex: 0 1 220px;
  }

  .header-nav-phone-xl {
    flex-shrink: 0;
    white-space: nowrap;
    max-width: none;
  }

  .header-nav-phone-xl span {
    white-space: nowrap;
  }

  .header-nav-cta.primary-theme-btn {
    flex: 0 0 auto;
    flex-shrink: 0;
    width: auto !important;
    max-width: fit-content;
    padding: 10px 18px;
    margin-left: 0;
  }

  .header-nav-cta.primary-theme-btn a {
    width: auto !important;
    max-width: 100%;
  }
}

/* 顶栏 Get A Quote：与全站绿色按钮一致，避免 flex/nowrap 把盒子挤变形 */
.header-nav-cta.primary-theme-btn {
  display: inline-block;
  vertical-align: middle;
  box-sizing: border-box;
  width: auto;
  max-width: fit-content;
}

.header-nav-cta.primary-theme-btn a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  white-space: nowrap;
  line-height: 1.3;
}

.nav-down {
  justify-content: space-between;
}

.nav-down-left {
  flex: 1;
  justify-content: center !important;
}

.nav-down-left .navbar-nav a,
.nav-down-left .nav-link.header-nav-link {
  transition: 0.4s;
  color: #515151;
  text-decoration: none;
  position: relative;
  font-family: var(--secondary-font);
  padding: 0.5rem 0.75rem;
}

.nav-down {
  padding: 15px 0px 15px 40px;
}

select {
  border: none !important;
  outline: none !important;
  box-shadow: none;
}

.nav-down-left a::after,
.nav-down-left .nav-link.header-nav-link::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 4px;
  background-color: var(--green);
  top: -33px;
  left: 0;
  transform: scaley(0);
  transform-origin: left;
  transition: transform 0.4s;
}

.nav-down-left a:hover::after,
.nav-down-left .nav-link.header-nav-link:hover::after {
  transform: scaley(1);
  transform-origin: right;
  color: var(--green) !important;
}

.nav-down-left a:hover,
.nav-down-left .nav-link.header-nav-link:hover {
  color: var(--green);
}

.nav-down-left a:is(:link, :active, :visited).active,
.nav-down-left .nav-link.header-nav-link.active {
  color: var(--green);
}

/* ----- Mobile search + tools ----- */
.header-search-form {
  border: 1px solid #e0e0e0;
  border-radius: 20px;
  padding: 6px 12px;
  background: #f8f8f8;
  width: 100%;
  max-width: 100%;
}

.header-search-input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 14px;
  flex: 1;
  min-width: 0;
  color: #333;
}

.header-search-btn {
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header-nav-phone {
  color: #515151;
  font-size: 15px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #f5f5f5;
}

.header-nav-phone:hover {
  color: var(--green);
}

.header-nav-phone-xl {
  color: #515151;
  font-size: 13px;
}

.header-nav-phone-xl:hover {
  color: var(--green);
}

.navbar-collapse-main {
  flex-grow: 1;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='green' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.navbar-toggler {
  border: none !important;
  box-shadow: none !important;
  padding: 0 !important;
}

@media (max-width: 991.98px) {
  html {
    scroll-padding-top: 72px;
  }

  .header .header-inner {
    padding-left: 12px;
    padding-right: 12px;
  }

  .navbar-collapse-main {
    width: 100%;
    max-height: min(78vh, 520px);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    margin-top: 8px;
    padding-top: 8px;
    padding-bottom: 16px;
    border-top: 1px solid #eee;
  }

  .header nav {
    min-height: auto;
    padding-top: 8px !important;
    padding-bottom: 8px !important;
  }

  .navbar-brand-site {
    width: auto !important;
    max-width: calc(100% - 56px);
    border-right: none;
    margin-right: 0.5rem !important;
    padding: 8px 0 !important;
    min-height: 48px;
    flex: 1;
    min-width: 0;
  }

  .header-nav-links {
    width: 100%;
    text-align: center;
    gap: 0 !important;
  }

  .header-nav-links .nav-item {
    border-bottom: 1px solid #f0f0f0;
  }

  .header-nav-links .nav-item:last-child {
    border-bottom: none;
  }

  .header-nav-links .nav-link.header-nav-link {
    padding: 14px 16px;
    font-size: 16px;
    display: block;
  }

  .nav-down-left {
    justify-content: flex-start !important;
    display: block;
    width: 100%;
  }

  .nav-down-left a::after,
  .nav-down-left .nav-link.header-nav-link::after {
    top: auto;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 40px;
    height: 3px;
    transform-origin: center;
  }

  .nav-down-left a:hover::after,
  .nav-down-left .nav-link.header-nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
  }

  .header-nav-tools {
    width: 100%;
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid #eee;
  }

  .header-nav-cta.primary-theme-btn {
    display: block;
    width: 100%;
    max-width: none;
    text-align: center;
    padding: 15px 24px;
    box-sizing: border-box;
  }

  .header-nav-cta.primary-theme-btn a {
    justify-content: center;
    width: 100%;
  }

  .nav-top {
    flex-direction: column-reverse !important;
  }

  .nav-top-left {
    display: none !important;
  }

  .navigation {
    flex-direction: column-reverse;
    display: flex;
  }

  .nav-down-right .primary-theme-btn {
    display: none !important;
  }

  .nav-top,
  .nav-down {
    padding: 15px 0;
  }

  .nav-top- {
    display: none;
  }
}

@media(max-width:767px) {
  .nav-top-left {
    margin-bottom: 5px;
  }
}

@media (max-width:575px) {
  .nav-top {
    flex-direction: column;
    justify-content: flex-start;
  }

  .nav-top-left {
    align-items: flex-start;
  }

  .nav-top-left {
    gap: 8px !important;
  }
}