:root {
    /* 页眉专属变量：不与全局（style.css）冲突 */
    --text-dark: #222;
    --text-gray: #666;
    --white: #fff;
    --transition: 0.24s ease;
}
ul { list-style: none; }
a { text-decoration: none !important; color: inherit; }
svg { vertical-align: middle; }

/* 页眉容器（规范类名，避免与全局 .container 冲突） */
.vmc-header-container {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 9999;
    transition: var(--transition);
}
.site-header.sticky-shrink {
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 90px;
    transition: var(--transition);
}
.site-header.sticky-shrink .header-inner { height: 70px; }

/* ===== Logo 统一样式 ===== */
.header-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

/* WordPress 自定义 Logo 输出结构：<a class="custom-logo-link"><img class="custom-logo"></a> */
.custom-logo-link {
    display: flex;
    align-items: center;
    line-height: 0;
}

.custom-logo {
    height: 55px;
    width: auto;
    max-width: 220px;
    object-fit: contain;
    transition: var(--transition);
}

/* 兼容旧选择器：统一通过 .header-logo img 控制 */
.header-logo img {
    height: 55px;
    width: auto;
    max-width: 220px;
    object-fit: contain;
    transition: var(--transition);
}

/* 吸顶时缩小 Logo */
.site-header.sticky-shrink .custom-logo,
.site-header.sticky-shrink .header-logo img {
    height: 42px;
}

/* 规范类名：文本回退 Logo */
.vmc-site-logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    white-space: nowrap;
    line-height: 1.2;
}

/* ===== 语言切换器（规范类名） ===== */
.vmc-language-switcher {
    display: flex;
    align-items: center;
}

.nav-arrow {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    margin-left: 6px;
    transition: transform 0.2s ease;
}
.menu-item-has-children:hover > a > .nav-arrow,
.lang-dropdown:hover .nav-arrow {
    transform: rotate(-135deg);
}

.main-nav ul {
    display: flex;
    gap: 6px;
}
.main-nav > ul > li {
    padding: 0 14px;
    height: 90px;
    display: flex;
    align-items: center;
    position: relative;
}
.site-header.sticky-shrink .main-nav > ul > li { height: 70px; }
.main-nav > ul > li > a {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 6px;
    position: relative;
}
.main-nav > ul > li:hover > a,
.main-nav > ul > .current-menu-item > a { color: var(--main-color); }

/* 下拉缓冲区 */
.sub-menu-buffer {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    padding-top: 20px;
}
.sub-menu {
    position: fixed;
    left: 0;
    width: 100vw;
    top: 90px;
    background: var(--white);
    box-shadow: 0 8px 22px rgba(0,0,0,0.09);
    padding: 40px 60px;
    box-sizing: border-box;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all 0.28s ease;
    z-index: 999;
}
.site-header.sticky-shrink .sub-menu { top: 70px; }

.main-nav .menu-item-has-children:hover > .sub-menu-buffer > .sub-menu,
.main-nav .menu-item-has-children:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.sub-menu .container {
    display: flex;
    gap: 50px;
}

/* 普通下拉自动分列 */
.main-nav .sub-menu:not(.sub-col-grid) {
    columns: 2;
    column-gap: 30px;
}
.main-nav .sub-menu > li {
    margin-bottom: 14px;
    break-inside: avoid;
}
.main-nav .sub-menu > li > a {
    font-size: 15px;
    color: var(--text-gray);
    transition: var(--transition);
}
.main-nav .sub-menu > li > a:hover {
    color: var(--main-color);
    padding-left: 4px;
}

/* 嵌套二级菜单 */
.main-nav .sub-menu .sub-menu {
    position: static;
    left: auto;
    top: auto;
    width: auto;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: transparent;
    padding: 12px 0 0;
    transition: none;
    z-index: auto;
}
.main-nav .sub-menu .sub-menu > li > a {
    font-size: 14px;
}

/* 超级菜单网格 */
.main-nav .sub-col-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 30px;
}
.main-nav .sub-col-grid > li {
    margin-bottom: 0;
}
.main-nav .sub-col-grid > li > a {
    display: inline-block;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}
.main-nav .sub-col-grid > li > a:hover {
    color: var(--main-color);
    padding-left: 0;
}

.header-tool {
    display: flex;
    align-items: center;
    gap: 16px;
}
.tool-icon {
    font-size: 20px;
    cursor: pointer;
    color: #333;
    transition: var(--transition);
    background: none;
    border: 0;
    padding: 0;
}
.tool-icon:hover { color: var(--main-color); }

.btn-quote {
    background: var(--main-color);
    color: var(--white);
    padding: 9px 20px;
    border-radius: var(--btn-radius);
    font-weight: 500;
    transition: var(--transition);
}
.btn-quote:hover { background: var(--main-dark); }

.lang-dropdown { position: relative; }
.lang-current {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 15px;
}
.lang-list {
    position: absolute;
    top: 100%;
    right: 0;
    background: #fff;
    width: 120px;
    box-shadow: 0 3px 12px rgba(0,0,0,0.1);
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}
.lang-dropdown:hover .lang-list,
.lang-dropdown.active .lang-list {
    opacity: 1;
    visibility: visible;
}
.lang-list li a {
    display: block;
    padding: 8px 16px;
    font-size: 14px;
}
.lang-list li a:hover {
    background: #f7f7f7;
    color: var(--main-color);
}

/* 搜索弹窗：全宽吸顶横条（原全屏遮罩居中弹窗，改为吸顶条） */
.search-popup {
    position: fixed;
    top: 90px;
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: 0 6px 18px rgba(0,0,0,0.12);
    z-index: 9998;
    padding: 14px 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s, visibility 0.25s;
}
.search-popup.open { opacity: 1; visibility: visible; }
.search-box {
    width: 100%;
    max-width: var(--content-max-width);
    margin: 0 auto;
    position: relative;
    display: flex;
    align-items: center;
}
.search-box form {
    display: flex;
    flex: 1;
    min-width: 0;
    padding-right: 44px;
}
.search-box input {
    flex: 1;
    min-width: 0;
    height: 52px;
    padding: 0 20px;
    font-size: 16px;
    border: 2px solid var(--main-color);
    border-right: none;
    border-radius: 6px 0 0 6px;
    outline: none;
}
.search-submit {
    height: 52px;
    padding: 0 24px;
    background: var(--main-color);
    color: white;
    border: none;
    border-radius: 0 6px 6px 0;
    cursor: pointer;
    font-size: 16px;
    flex-shrink: 0;
}
.search-close {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    line-height: 30px;
    text-align: center;
    background: #f2f2f2;
    border-radius: 50%;
    color: #555;
    font-size: 18px;
    cursor: pointer;
}

/* 搜索条分页定位：Header 收缩 90→70 时跟随（相邻兄弟选择器，无需 JS） */
body:not(.single-myps_product) .site-header.sticky-shrink + .search-popup {
    top: 70px;
}
/* 产品详情页：页头 static（高 90px），顶部打开时对齐页头下沿 */
body.single-myps_product .search-popup {
    top: 90px;
}
/* 详情页滚动后（.sticky-shrink 已由 header.js 切换）：页头滚出，搜索条吸到视口顶部 */
body.single-myps_product .site-header.sticky-shrink + .search-popup {
    top: 0;
}
@media (max-width: 895px) {
    body.single-myps_product .search-popup {
        top: 90px;
    }
    body.single-myps_product .site-header.sticky-shrink + .search-popup {
        top: 0;
    }
}
@media (max-width: 767px) {
    body:not(.single-myps_product) .search-popup {
        top: 70px; /* 移动端 Header 恒 70px */
    }
    body.single-myps_product .search-popup {
        top: 70px; /* 移动端页头恒 70px（static） */
    }
}

/* 移动端抽屉 */
.mobile-menu-btn { display: none; font-size: 26px; cursor: pointer; }
.mobile-menu-drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100vh;
    background: #fff;
    z-index: 100000;
    padding: 30px 20px;
    transition: right 0.3s ease;
    overflow-y: auto;
}
.mobile-menu-drawer.open { right: 0; }
.drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 99999;
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
}
.drawer-overlay.open { opacity: 1; visibility: visible; }
.drawer-close {
    font-size: 28px;
    text-align: right;
    margin-bottom: 30px;
    cursor: pointer;
}

/* 移动端抽屉菜单样式 */
.drawer-nav ul {
    display: block;
}
.drawer-nav li {
    margin-bottom: 8px;
}
.drawer-nav li a {
    display: block;
    padding: 10px 0;
    font-size: 16px;
    color: #333;
}
.drawer-nav .sub-menu {
    position: static;
    width: auto;
    top: auto;
    box-shadow: none;
    padding: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: #f9f9f9;
    margin-left: 10px;
    display: none;
}
.drawer-nav .menu-item-has-children > a::after {
    content: '\f107';
    font-family: "Font Awesome 7 Free";
    font-weight: 900;
    float: right;
    margin-right: 5px;
    transition: transform 0.3s;
}
.drawer-nav .menu-item-has-children.open > a::after {
    transform: rotate(180deg);
}
.drawer-nav .menu-item-has-children.open > .sub-menu {
    display: block;
}

/* 响应式 */
@media (max-width: 1024px) {
    .main-nav { display: none; }
    .mobile-menu-btn { display: block; }
    .btn-quote { padding:7px 12px; font-size:14px; }
    .sub-menu ul.sub-menu-list { columns: 1; }
}
@media (max-width: 767px) {
    .header-inner { height: 70px; }
    .header-tool { gap:10px; }
    .sub-menu { top: 70px; }
}