/* ========================================
   导航栏布局修复
   确保菜单项在一排正确显示
   ======================================== */

/* 确保导航栏不被其他内容遮挡 */
.header-container-wrapper {
    position: relative;
    z-index: 9999 !important;
}

/* 修复菜单项宽度限制（兼容 nav-* 与旧 hs-*） */
.row-fluid .mainmenu .nav-menu-wrapper > ul > li > a:link,
.row-fluid .mainmenu .nav-menu-wrapper > ul > li > a:visited,
.row-fluid .mainmenu .nav-menu-wrapper ul li a,
.row-fluid .mainmenu .hs-menu-wrapper > ul > li > a:link,
.row-fluid .mainmenu .hs-menu-wrapper > ul > li > a:visited,
.row-fluid .mainmenu .hs-menu-wrapper ul li a {
    max-width: none !important;
    overflow: visible !important;
    white-space: nowrap;
}

/* 主导航一级链接：字号、颜色、内边距与悬停效果 */
.row-fluid .mainmenu .nav-menu-wrapper > ul > li > a,
.row-fluid .mainmenu .hs-menu-wrapper > ul > li > a {
    font-size: 20px;
    font-weight: 500;
    color: #0066a1 !important;
    text-decoration: none;
    padding: 10px 6px;
    border-radius: 4px;
    transition: color 0.2s ease, background-color 0.2s ease;
}
.row-fluid .mainmenu .nav-menu-wrapper > ul > li > a:hover,
.row-fluid .mainmenu .hs-menu-wrapper > ul > li > a:hover {
    color: #00A0CE !important;
    background-color: rgba(0, 160, 206, 0.06);
}
.row-fluid .mainmenu .nav-menu-wrapper > ul > li > a:focus,
.row-fluid .mainmenu .hs-menu-wrapper > ul > li > a:focus {
    outline: 1px solid #00A0CE;
    outline-offset: 2px;
}

/* 确保菜单项在一排显示 */
.nav-menu-wrapper.hs-menu-flow-horizontal > ul,
.mainmenu .nav-menu-wrapper > ul,
.hs-menu-wrapper.hs-menu-flow-horizontal > ul,
.mainmenu .hs-menu-wrapper > ul {
    display: flex !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    justify-content: flex-start !important;
}

.nav-menu-wrapper.hs-menu-flow-horizontal > ul li.nav-item,
.mainmenu .nav-menu-wrapper > ul > li,
.hs-menu-wrapper.hs-menu-flow-horizontal > ul li.hs-menu-depth-1,
.mainmenu .hs-menu-wrapper > ul > li {
    float: none !important;
    display: inline-flex !important;
    flex-shrink: 0 !important;
}

/* 确保顶部容器正确对齐 */
.row-fluid .top-right {
    text-align: right;
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
    flex-wrap: nowrap !important;
}

.row-fluid .mainmenu {
    display: inline-flex !important;
    align-items: center !important;
    flex-shrink: 1 !important;
    min-width: 0 !important;
    position: relative;
    z-index: 1;
}

/* 语言切换器 — 独立容器（在 mainmenu 与 Get Started 之间），视觉分隔更清晰 */
.lang-switcher-wrapper {
    display: inline-flex;
    align-items: center;
    padding: 0 16px 0 18px;
    margin-left: 8px;
    white-space: nowrap;
    flex-shrink: 0;
    font-size: 14px;
    font-weight: 500;
    vertical-align: middle;
    position: relative;
    z-index: 100 !important;
    background: #fff;
    min-width: 4.5em;
    border-left: 1px solid #e8e8e8;
}
.lang-switcher-wrapper a {
    color: #555;
    text-decoration: none;
    padding: 6px 6px;
    font-weight: 500;
    border-radius: 4px;
    transition: color 0.2s ease, background-color 0.2s ease;
}
.lang-switcher-wrapper a.active {
    font-weight: 700;
    color: #0066a1;
}
.lang-switcher-wrapper a:hover:not(.active) {
    color: #00A0CE;
    background-color: rgba(0, 160, 206, 0.06);
}
.lang-switcher-wrapper .lang-divider {
    color: #ddd;
    padding: 0 4px;
    font-weight: 400;
}

/* 导航 ul 用 flex，让 lang-switcher 被推到右侧 */
.mainmenu .nav-menu-wrapper > ul.active-branch,
.mainmenu .hs-menu-wrapper > ul.active-branch {
    display: flex !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    width: 100% !important;
}

/* Get Started 按钮 — 始终在导航下拉之上，与语言切换器留出间距 */
.row-fluid .toprequest-link {
    display: inline-flex !important;
    align-items: center !important;
    flex-shrink: 0 !important;
    position: relative !important;
    z-index: 1000 !important;
    margin-left: 8px;
}

/* 语言切换器与 Get Started 所在右侧区域整体置于导航下拉之上 */
.row-fluid .top-right {
    position: relative;
    z-index: 1000;
}

/* 导航下拉层始终在右侧按钮之下，避免 About 下拉遮住 Get Started */
.row-fluid .mainmenu .nav-menu-wrapper ul.nav-sub,
.row-fluid .mainmenu .hs-menu-wrapper ul.hs-menu-children-wrapper {
    z-index: 1 !important;
}

/* top-right 区域确保 mainmenu 占满可用宽度 */
.row-fluid .top-right {
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
    flex-wrap: nowrap !important;
}
.row-fluid .span9.mainmenu {
    flex: 1 1 auto !important;
    min-width: 0 !important;
    overflow: visible !important;
}

/* 确保英文导航最后一项 About Us 不被裁切，菜单项不压缩 */
.mainmenu .nav-menu-wrapper > ul,
.mainmenu .hs-menu-wrapper > ul {
    flex-wrap: nowrap !important;
}
.mainmenu .nav-menu-wrapper > ul > li,
.mainmenu .hs-menu-wrapper > ul > li {
    flex-shrink: 0 !important;
}

/* 菜单项间距：加大留白，与语言切换器之间留足间距 */
.row-fluid .mainmenu .nav-menu-wrapper > ul > li,
.row-fluid .mainmenu .hs-menu-wrapper > ul > li {
    margin: 0 6px;
}
.row-fluid .mainmenu .nav-menu-wrapper > ul > li:last-child,
.row-fluid .mainmenu .hs-menu-wrapper > ul > li:last-child {
    margin-right: 20px;
}

/* 确保下拉菜单宽度合适 */
.row-fluid .mainmenu .nav-menu-wrapper > ul li.nav-item-has-children ul.nav-sub li a,
.row-fluid .mainmenu .hs-menu-wrapper > ul li.hs-item-has-children ul.hs-menu-children-wrapper li a {
    max-width: none !important;
    width: 100%;
}

/* 防止容器换行 */
.row-fluid .span9.mainmenu,
.row-fluid .span3.toprequest-link {
    white-space: nowrap !important;
}

/* 确保整体布局不换行 */
.header-container .row-fluid {
    display: flex !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
}

/* nav-* 下拉菜单样式（与 dh1 中 hs-menu 行为一致） */
.row-fluid .mainmenu .nav-menu-wrapper ul {
    padding: 0;
    list-style: none;
    margin: 0;
}
.row-fluid .mainmenu .nav-menu-wrapper > ul > li.nav-item-has-children {
    position: relative;
}
.row-fluid .mainmenu .nav-menu-wrapper ul li ul.nav-sub {
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.4s;
    position: absolute;
    z-index: 10;
    left: 0;
    border: 1px solid #f7f7f7;
    border-top: 4px solid #00A0CE;
    width: 252px;
    padding: 0;
    margin: 0;
    background: #fff;
    top: 100%;
    box-shadow: 0 2px 8px rgba(0,0,0,.2);
    list-style: none;
}
.row-fluid .mainmenu .nav-menu-wrapper > ul > li:hover > ul.nav-sub {
    visibility: visible;
    opacity: 1;
}
.row-fluid .mainmenu .nav-menu-wrapper ul.nav-sub li {
    padding: 0;
    margin: 0;
    display: block;
    border-top: 1px solid #e0e0e0;
}
.row-fluid .mainmenu .nav-menu-wrapper ul.nav-sub li:first-child {
    border-top: none;
}
.row-fluid .mainmenu .nav-menu-wrapper ul.nav-sub li a {
    display: block;
    padding: 10px 15px;
    line-height: 20px;
    color: #333;
    width: 100%;
    text-decoration: none;
}
.row-fluid .mainmenu .nav-menu-wrapper ul.nav-sub li a:hover {
    color: #fff;
    background: #00A0CE;
}
.row-fluid .mainmenu .nav-menu-wrapper > ul > li > ul.nav-sub:before {
    position: absolute;
    content: '';
    left: 20px;
    top: -12px;
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-bottom: 12px solid #00A0CE;
}