/* 与 kylin-ipfast-platform-ui HomeV3/homeHeader.vue 对齐 */
:root {
  --v3-header-theme: #2563eb;
  --v3-header-theme-mid: #3b82f6;
  --v3-header-theme-light: #60a5fa;
  --v3-header-black: #0f172a;
}

.v3-site-header .v3-navbar-inner {
  /* 高于子页横幅/动效层，避免 LOGO 与导航被遮挡无法点击 */
  z-index: 1030;
  border-bottom: 1px solid rgba(59, 130, 246, 0.2);
  padding: 0.5rem 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.v3-site-header .v3-navbar-inner::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.v3-site-header .v3-navbar-inner .container {
  position: relative;
  z-index: 1;
}

.v3-site-header #v3-navbar-logo {
  height: 50px;
  width: auto;
}

.v3-site-header .navbar-brand {
  position: relative;
  z-index: 1;
}

/* 按钮 */
.v3-site-header .navbar-btn {
  min-width: 80px;
  padding: 0.25rem 0.75rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.v3-site-header .navbar-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.v3-site-header .navbar-btn:hover::before {
  left: 100%;
}

.v3-site-header .navbar-btn.btn-primary {
  background: linear-gradient(135deg, var(--v3-header-theme-mid) 0%, var(--v3-header-theme) 100%);
  border: 1px solid rgba(59, 130, 246, 0.5);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.3);
  color: #fff;
}

.v3-site-header .navbar-btn.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
  color: #fff;
}

.v3-site-header .navbar-btn.btn-outline-primary {
  border-color: var(--v3-header-theme);
  color: var(--v3-header-theme);
  background: transparent;
}

.v3-site-header .navbar-btn.btn-outline-primary:hover {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(59, 130, 246, 0.05) 100%);
  color: var(--v3-header-theme);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
}

/* 主导航链接 */
.v3-site-header .navbar-nav .nav-link {
  color: var(--v3-header-black);
  font-weight: 600;
  font-size: 1.2rem;
  position: relative;
  padding: 0.75rem 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 4px;
}

.v3-site-header .navbar-nav .nav-link:hover {
  color: var(--v3-header-theme);
  transform: translateY(-1px);
}

.v3-site-header .navbar-nav .nav-link:not(.dropdown-toggle)::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 50%;
  background: linear-gradient(90deg, transparent, var(--v3-header-theme), transparent);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateX(-50%);
}

.v3-site-header .navbar-nav .nav-link:not(.dropdown-toggle):hover::after {
  width: 100%;
}

.v3-site-header .navbar-nav .nav-item.dropdown .nav-link.dropdown-toggle::after {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.v3-site-header .navbar-nav .nav-item.dropdown:hover .nav-link.dropdown-toggle::after {
  transform: rotate(180deg);
}

/* 下拉：桌面悬停展开 */
.v3-site-header .nav-item.dropdown {
  position: relative;
}

/* 仅主导航「产品与价格 / 解决方案」下挂菜单；勿用全局 .dropdown-menu，否则会盖住语言 .v3-lang-menu 的 Bootstrap .show */
.v3-site-header .nav-item.dropdown > .dropdown-menu {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 250, 252, 0.98) 100%);
  border: 1px solid rgba(59, 130, 246, 0.2);
  box-shadow: 0 8px 32px rgba(59, 130, 246, 0.15), 0 0 0 1px rgba(59, 130, 246, 0.05);
  padding: 1rem;
  width: min(720px, calc(100vw - 2rem));
  margin-top: 0;
  display: none;
  z-index: 1001;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: absolute;
}

.v3-site-header .nav-item.dropdown > .dropdown-menu::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(59, 130, 246, 0.3) 20%,
    rgba(59, 130, 246, 0.6) 50%,
    rgba(59, 130, 246, 0.3) 80%,
    transparent 100%
  );
}

.v3-site-header .dropdown-menu-solution {
  width: min(640px, calc(100vw - 2rem));
  padding: 1.25rem 1rem;
}

.v3-site-header .solution-section {
  padding-right: 0.75rem;
}

.v3-site-header .solution-section-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--v3-header-black);
  margin-bottom: 0.25rem;
}

.v3-site-header .solution-section-subtitle {
  font-size: 0.75rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.v3-site-header .solution-card {
  padding: 0.875rem 1rem;
  margin-bottom: 0.5rem;
  border-radius: 8px;
  border-left: 3px solid var(--v3-header-theme);
  background: linear-gradient(135deg, rgba(248, 250, 252, 0.8) 0%, rgba(241, 245, 249, 0.8) 100%);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  display: block;
  color: inherit;
}

.v3-site-header .solution-card:last-child {
  margin-bottom: 0;
}

.v3-site-header .solution-card:hover {
  background: linear-gradient(135deg, rgba(239, 246, 255, 0.95) 0%, rgba(219, 234, 254, 0.95) 100%);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
  transform: translateX(4px);
  border-left-color: var(--v3-header-theme-light);
}

.v3-site-header .solution-card-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--v3-header-black);
  margin-bottom: 0.25rem;
}

.v3-site-header .solution-card-desc {
  font-size: 0.75rem;
  line-height: 1.4;
}

.v3-site-header .dropdown-header {
  font-size: 0.875rem;
  padding: 0.5rem 0;
  margin-bottom: 0.25rem;
}

.v3-site-header .dropdown-item {
  font-size: 0.875rem;
  color: var(--v3-header-black);
  padding: 0.9375rem 0.25rem;
  border-radius: 6px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.v3-site-header .dropdown-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--v3-header-theme), var(--v3-header-theme-light));
  transform: scaleY(0);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.v3-site-header .dropdown-item:hover {
  background: linear-gradient(135deg, rgba(243, 249, 254, 0.9) 0%, rgba(231, 243, 255, 0.9) 100%);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.15);
  transform: translateX(4px);
}

.v3-site-header .dropdown-item:hover::before {
  transform: scaleY(1);
}

.v3-site-header .dropdown-item-icon {
  font-size: 1.75rem;
  color: var(--v3-header-theme);
  flex-shrink: 0;
  transition: all 0.3s ease;
  filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.3));
}

.v3-site-header .dropdown-item:hover .dropdown-item-icon {
  transform: scale(1.1);
  filter: drop-shadow(0 0 12px rgba(59, 130, 246, 0.5));
}

.v3-site-header .dropdown-item-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--v3-header-black);
  max-width: 300px;
  word-wrap: break-word;
}

.v3-site-header .dropdown-item:hover .dropdown-item-title {
  color: var(--v3-header-theme);
}

.v3-site-header .dropdown-item-desc {
  font-size: 0.75rem;
  color: #6c757d;
  margin-top: 0.25rem;
  max-width: 300px;
  word-wrap: break-word;
}

/* 语言切换（对齐 Vue LangSelect：图标 + 当前语言 + 下拉菜单） */
.v3-site-header .v3-lang-dropdown {
  position: relative;
}

@media (min-width: 992px) {
  .v3-site-header .v3-lang-dropdown {
    margin-left: 1rem;
  }
}

.v3-site-header .v3-lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.9rem;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.2;
  color: var(--v3-header-black);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 250, 252, 0.92) 100%);
  border: 1px solid rgba(59, 130, 246, 0.38);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 10px rgba(59, 130, 246, 0.1);
}

.v3-site-header .v3-lang-btn:hover {
  border-color: var(--v3-header-theme);
  color: var(--v3-header-theme);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.22);
  transform: translateY(-1px);
}

.v3-site-header .v3-lang-btn:focus-visible {
  outline: 2px solid rgba(59, 130, 246, 0.5);
  outline-offset: 2px;
}

.v3-site-header .v3-lang-btn-icon {
  font-size: 1.125rem;
  color: var(--v3-header-theme);
  line-height: 1;
  flex-shrink: 0;
}

.v3-site-header .v3-lang-btn:hover .v3-lang-btn-icon {
  filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.45));
}

.v3-site-header .v3-lang-btn-caret {
  font-size: 0.65rem;
  opacity: 0.75;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.v3-site-header .v3-lang-btn[aria-expanded="true"] .v3-lang-btn-caret {
  transform: rotate(180deg);
}

.v3-site-header .v3-lang-menu {
  min-width: 11rem;
  padding: 0.45rem;
  margin-top: 0.45rem !important;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 250, 252, 0.98) 100%);
  border: 1px solid rgba(59, 130, 246, 0.22);
  box-shadow: 0 10px 32px rgba(59, 130, 246, 0.16), 0 0 0 1px rgba(59, 130, 246, 0.05);
  border-radius: 12px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 1050;
}

.v3-site-header .v3-lang-menu .v3-lang-item {
  border-radius: 8px;
  font-size: 0.9375rem;
  padding: 0.5rem 0.85rem;
  color: var(--v3-header-black);
  transition: all 0.2s ease;
}

.v3-site-header .v3-lang-menu .v3-lang-item:hover,
.v3-site-header .v3-lang-menu .v3-lang-item:focus {
  background: linear-gradient(135deg, rgba(243, 249, 254, 0.95) 0%, rgba(231, 243, 255, 0.95) 100%);
  color: var(--v3-header-theme);
}

.v3-site-header .v3-lang-menu .v3-lang-item.active {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.14) 0%, rgba(59, 130, 246, 0.07) 100%);
  color: var(--v3-header-theme);
  font-weight: 600;
}

/* 窄屏折叠菜单内：与 LangSelect 移动端一致，仅保留图标 + 箭头 */
@media (max-width: 991.98px) {
  .v3-site-header .v3-lang-btn-mobile .v3-lang-btn-label {
    display: none;
  }

  .v3-site-header .v3-lang-dropdown-mobile {
    margin-top: 1rem;
  }
}

/* 优惠券角标 */
.v3-site-header .v3-coupon-fixed {
  position: fixed;
  left: 20px;
  bottom: 20px;
  z-index: 999;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: transparent;
  text-decoration: none;
}

.v3-site-header .v3-coupon-fixed:hover {
  transform: scale(1.05);
}

.v3-site-header .v3-coupon-fixed img {
  display: block;
  max-width: 200px;
  max-height: 300px;
  width: auto;
  height: auto;
}

/* 宽屏：悬停展开下拉（与 Vue 一致；!important 覆盖 Bootstrap 在未 .show 时的 display） */
@media (min-width: 992px) {
  .v3-site-header .navbar-collapse {
    overflow: visible;
  }

  .v3-site-header .nav-item.dropdown:hover > .dropdown-menu {
    display: block !important;
  }
}

@media (max-width: 991.98px) {
  .v3-site-header .navbar-collapse {
    max-height: 80vh;
    overflow-y: auto;
    margin-top: 1rem;
    -webkit-overflow-scrolling: touch;
  }

  .v3-site-header .nav-item {
    margin-bottom: 0.5rem;
  }

  .v3-site-header .navbar-btn {
    width: 100%;
    margin-top: 0.5rem;
  }

  .v3-site-header .nav-item.dropdown > .dropdown-menu {
    width: 100% !important;
    max-height: 50vh;
    overflow-y: auto;
  }

  .v3-site-header .v3-coupon-fixed {
    display: none;
  }
}