/* ==================== 导航基础变量 ==================== */
/* 注意：这些变量会被functions.php中的shaperfactory_output_theme_colors_css()函数动态覆盖 */
/* 默认值（如果WordPress自定义器未设置，则使用这些值） */
:root {
    --nav-bg: #FFFEF9; /* 辅助色 - 导航栏背景 */
    --nav-text: #1B3A5F; /* 主色调 - 导航栏文字 */
    --nav-hover: #FF9933; /* 点缀色 - 导航栏hover */
    --nav-hover-dark: #E6892A; /* 深橙色 - 导航栏hover深色 */
    --nav-border: rgba(27, 58, 95, 0.08); /* 主色调透明度 - 导航栏边框 */
    --sub-menu-bg: #FFFEF9; /* 辅助色 - 子菜单背景 */
}

body { 
    margin: 0; 
    padding-top: 0px; 
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--nav-bg, var(--bg-light, #f5f5f5));
}

/* 导航栏基础样式 */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100000; /* 修复：提升 header 层级，避免下拉菜单被首页 banner 覆盖 */
    background-color: var(--nav-bg);
    border-bottom: 1px solid var(--nav-border);
}

.header-container {
    max-width: 1440px; 
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

/* Logo 样式 */
.site-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    font-size: 24px;
    font-weight: 800;
    color: var(--nav-text);
}

/* 桌面端导航（保持原有样式） */
.desktop-nav {
    display: flex;
    align-items: center;
    flex-grow: 1;
    justify-content: center;
    height: 100%;
}

.desktop-nav .menu {
    display: flex;
    align-items: center;
    gap: 3rem;
    list-style: none;
    margin: 0;
    padding: 0;
    height: 100%;
}

.desktop-nav .menu-item {
    position: static; 
    height: 100%;
    display: flex;
    align-items: center;
}

.desktop-nav .menu-item > a {
    color: var(--nav-text);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    transition: color 0.3s;
    padding: 28px 0;
    text-transform: uppercase;
}

.desktop-nav .menu-item > a:hover {
    color: var(--nav-hover);
}

/* 汉堡菜单按钮（仅手机端显示） */
.menu-toggle {
    display: none; /* 默认隐藏，手机端显示 */
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    position: relative;
}

.menu-toggle__icon {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
}

.menu-toggle__icon span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--nav-text);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.menu-toggle.active .menu-toggle__icon span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active .menu-toggle__icon span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .menu-toggle__icon span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* 左侧竖排导航（仅手机端显示） */
.sidebar-nav {
    display: none; /* 默认隐藏，手机端显示 */
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background-color: var(--nav-bg);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 1002;
    transform: translateX(-100%); /* 默认隐藏（向左移出屏幕） */
    transition: transform 0.3s ease;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-nav.open {
    transform: translateX(0); /* 显示时移回原位 */
}

.sidebar-nav__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--nav-border);
    background-color: var(--nav-bg);
    position: sticky;
    top: 0;
    z-index: 10;
}

.sidebar-nav__title {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--nav-text);
    text-transform: uppercase;
}

.sidebar-nav__close {
    background: transparent;
    border: none;
    font-size: 28px;
    color: var(--nav-text);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s;
}

.sidebar-nav__close:hover {
    color: var(--nav-hover);
}

.sidebar-nav__content {
    padding: 20px 0;
}

/* 侧边栏菜单样式 */
.sidebar-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.sidebar-menu .menu-item {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.sidebar-menu .menu-item > a {
    display: block;
    padding: 15px 20px;
    color: var(--nav-text);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.sidebar-menu .menu-item > a:hover {
    background-color: rgba(124, 179, 66, 0.1);
    color: var(--nav-hover);
    padding-left: 25px;
}

/* 子菜单样式（侧边栏内） */
.sidebar-menu .sub-menu {
    position: static;
    display: none !important; /* 默认隐藏 */
    background-color: rgba(0, 0, 0, 0.02);
    border: none;
    box-shadow: none;
    padding: 0;
    margin: 0;
    transform: none;
    width: 100%;
    max-width: 100%;
    height: auto;
    max-height: none;
    min-height: 0;
    grid-template-columns: 1fr;
    list-style: none;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    max-height: 0;
    opacity: 0;
}

.sidebar-menu .menu-item.menu-item-has-children > a {
    position: relative;
    padding-right: 50px; /* 为加号留出空间 */
}

.sidebar-menu .menu-item.menu-item-has-children > a::after {
    content: '+';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
    font-weight: 300;
    transition: transform 0.3s ease;
    line-height: 1;
}

.sidebar-menu .menu-item.menu-item-has-children.open > a::after {
    content: '−';
    transform: translateY(-50%) rotate(0deg);
}

/* 展开状态：显示子菜单 */
.sidebar-menu .menu-item.menu-item-has-children.open > .sub-menu {
    display: block !important;
    max-height: 5000px; /* 足够大的值 */
    opacity: 1;
}

.sidebar-menu .sub-menu .menu-item {
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

.sidebar-menu .sub-menu .menu-item > a {
    display: flex;
    align-items: center;
    padding: 12px 20px 12px 40px;
    font-size: 14px;
    font-weight: 400;
    text-transform: none;
    line-height: 1.5;
    min-height: 44px;
    box-sizing: border-box;
}

.sidebar-menu .sub-menu .menu-item > a:hover {
    padding-left: 45px;
    background-color: rgba(124, 179, 66, 0.08);
}

/* 遮罩层（仅手机端显示） */
.sidebar-overlay {
    display: none; /* 默认隐藏，手机端显示 */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ==================== 响应式设计 ==================== */
/* 手机端（≤991px）：显示汉堡菜单和侧边栏导航 */
@media (max-width: 991px) {
    /* 移动端：除了首页，其他页面移除body的padding-top，避免内容区和header之间的空白 */
    body:not(.home) {
        padding-top: 0 !important;
    }
    
    /* 移动端：隐藏所有页面的面包屑 */
    .page-breadcrumb-container,
    .ss-product-breadcrumb,
    .ss-blog-breadcrumb {
        display: none !important;
    }
    
    /* 移动端：确保第一个内容元素（banner）紧贴header */
    body:not(.home) main#site-content > *:first-child,
    body:not(.home) .ss-category-banner:first-child {
        margin-top: 0 !important;
    }
    
    /* 隐藏桌面端导航 */
    .desktop-nav {
        display: none !important;
    }

    /* 隐藏桌面端下拉菜单（防止固定定位的菜单显示） */
    .desktop-nav .sub-menu,
    .sub-menu-product-category,
    .sub-menu-single-column,
    .sub-menu-support-block {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
    }

    /* 禁用桌面端菜单项的悬停效果 */
    .desktop-nav .menu-item:hover .sub-menu {
        display: none !important;
    }
    
    /* 禁用 Support、Service、About Us block 菜单的悬停效果（移动端） */
    .desktop-nav .menu-item-support:hover .sub-menu-support-block,
    .desktop-nav .menu-item-service:hover .sub-menu-support-block,
    .desktop-nav .menu-item-about:hover .sub-menu-support-block {
        display: none !important;
    }

    /* 显示汉堡菜单按钮 */
    .menu-toggle {
        display: flex;
    }

    /* 显示侧边栏导航 */
    .sidebar-nav {
        display: block;
    }

    /* 显示遮罩层 */
    .sidebar-overlay {
        display: block;
    }

    /* 调整 header 布局 */
    .header-inner {
        justify-content: space-between;
    }

    /* 隐藏 CTA 按钮（手机端） */
    .cta-button {
        display: none !important;
    }
    
    /* 调整工具区样式（手机端） */
    .header-tools {
        gap: 10px;
    }
    
    .header-tools__search-toggle,
    .header-tools__language-toggle {
        width: 36px;
        height: 36px;
        padding: 6px;
    }
    
    .header-tools__language-toggle {
        min-width: 50px;
        padding: 6px 8px;
        font-size: 12px;
    }
    
    .language-current {
        font-size: 12px;
    }
    
    /* 搜索框在手机端全宽 */
    .header-search.active {
        width: 100%;
        max-width: 100%;
        right: 0;
        left: 0;
    }
    
    .header-search__container {
        padding: 0 15px;
    }
    
    .header-tools__language-dropdown {
        right: 0;
        min-width: 140px;
    }
}

/* 桌面端（≥992px）：显示横向导航，隐藏侧边栏 */
@media (min-width: 992px) {
    /* 隐藏汉堡菜单按钮 */
    .menu-toggle {
        display: none !important;
    }

    /* 隐藏侧边栏导航 */
    .sidebar-nav {
        display: none !important;
    }

    /* 隐藏遮罩层（桌面端必须不阻挡鼠标事件） */
    .sidebar-overlay {
        display: none !important;
        pointer-events: none !important;
    }

    /* 显示桌面端导航 */
    .desktop-nav {
        display: flex !important;
    }
    
    /* 确保工具区在桌面端显示 */
    .header-tools {
        display: flex !important;
    }
}

/* ==================== 下拉菜单基础样式 ==================== */
.sub-menu {
    position: fixed;
    top: 80px;                  
    background-color: var(--sub-menu-bg);
    border: 1px solid var(--nav-border);
    padding: 1.5rem 2.5rem;       
    display: none;              /* 默认隐藏 */
    list-style: none;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    z-index: 100000; /* 修复：确保下拉菜单高于 banner/swiper 等覆盖层 */
    gap: 2rem;
    overflow-y: auto;           /* 内容过多时允许滚动 */
    pointer-events: auto;       /* 修复：确保可点击 */
}

/* 产品分类菜单：多列布局（固定尺寸 1300px × 500px，居中显示） */
.sub-menu-product-category {
    width: 1300px;              
    max-width: 95vw;            
    left: 50%;                  
    transform: translateX(-50%); 
    height: 500px;              /* 固定高度 500px */
    display: none;              /* 默认隐藏，继承父类的display: none */
    grid-template-columns: repeat(5, 1fr); /* 默认5列，会根据实际列数动态调整 */
}

/* 其他菜单：单列布局（与1级菜单项左对齐，动态高度） */
.sub-menu-single-column {
    width: auto;
    /*min-width: 100px;*/
    max-width: 230px;
    min-height: 300px;          /* 最小高度 300px */
    max-height: 500px;           /* 最大高度 500px */
    height: auto;               /* 根据内容自适应 */
    grid-template-columns: 1fr;
    /* 左移偏移量：负数向左移动，正数向右移动 */
    transform: translateX(-50px); /* 向左移动50px，可根据需要调整 */
}

/* Support 菜单：1300px 宽度的 block 布局（居中显示） */
.sub-menu-support-block {
    width: 1300px;
    max-width: 95vw;
    left: 50%;
    transform: translateX(-50%);
    height: auto;
    min-height: 300px;
    max-height: 500px;
    grid-template-columns: 1fr;
    display: none; /* 默认隐藏 */
}

.sub-menu-support-block .sub-column {
    padding: 2rem;
}

.sub-menu-support-block .sub-column ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.sub-menu-support-block .sub-column ul li {
    margin: 0;
}

.sub-menu-support-block .sub-column ul li a {
    display: block;
    padding: 0.8rem 1rem;
    color: var(--nav-text);
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.sub-menu-support-block .sub-column ul li a:hover {
    background-color: var(--nav-bg, var(--bg-light, #f5f5f5));
    color: var(--nav-hover);
}

/* 旧的 Support 菜单样式（单列布局）保留兼容 */
.menu-item-support .sub-menu-single-column:not(.sub-menu-support-block),
.menu-item[data-menu-text="support"] .sub-menu-single-column:not(.sub-menu-support-block) {
    transform: translateX(0) !important;
}

/* 悬停显示 */
.menu-item:hover .sub-menu {
    display: grid;
}

/* 产品分类菜单悬停显示 */
.menu-item:hover .sub-menu-product-category {
    display: grid;
}

/* Support、Service、About Us block 菜单悬停显示 */
.menu-item-support:hover .sub-menu-support-block,
.menu-item-service:hover .sub-menu-support-block,
.menu-item-about:hover .sub-menu-support-block {
    display: grid;
}

.sub-column {
    display: flex;
    flex-direction: column;
}

.sub-column h4 {
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 1.5rem 0;
    color: var(--nav-text);
    border-bottom: 2px solid #eeeeee;
    padding-bottom: 0.8rem;
    text-transform: uppercase;
    display: block;
    width: 100%;
    white-space: nowrap;
}

.sub-column:hover h4 {
    border-bottom-color: var(--nav-hover);
}

.sub-column ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.sub-column ul a {
    font-size: 14px;
    color: #666666;
    text-decoration: none;
    transition: all 0.2s ease;
}

.sub-column ul a:hover {
    color: var(--nav-hover);
    padding-left: 5px;
}

/* ==================== Header Tools (搜索和语言选择) ==================== */
.header-tools {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* 搜索按钮 */
.header-tools__search-toggle {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--nav-text);
    transition: color 0.3s ease;
    border-radius: 50%;
    width: 40px;
    height: 40px;
}

.header-tools__search-toggle:hover {
    color: var(--nav-hover);
    background-color: rgba(124, 179, 66, 0.1);
}

.header-tools__search-toggle svg {
    width: 20px;
    height: 20px;
}

/* 语言选择器 */
.header-tools__language {
    position: relative;
}

.header-tools__language-toggle {
    background: transparent;
    border: 1px solid var(--nav-border);
    border-radius: 6px;
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--nav-text);
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    min-width: 60px;
    justify-content: space-between;
}

.header-tools__language-toggle:hover {
    border-color: var(--nav-hover);
    color: var(--nav-hover);
    background-color: rgba(124, 179, 66, 0.05);
}

.header-tools__language-toggle svg {
    width: 12px;
    height: 12px;
    transition: transform 0.3s ease;
}

.header-tools__language.active .header-tools__language-toggle svg {
    transform: rotate(180deg);
}

.language-current {
    display: inline-block;
}

/* 语言下拉菜单 */
.header-tools__language-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: var(--nav-bg, var(--bg-light, #fff));
    border: 1px solid var(--nav-border);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    list-style: none;
    margin: 0;
    padding: 8px 0;
    min-width: 160px;
    display: none;
    z-index: 1001;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.header-tools__language.active .header-tools__language-dropdown {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.header-tools__language-dropdown li {
    margin: 0;
    padding: 0;
}

.header-tools__language-dropdown .language-option {
    display: block;
    padding: 10px 16px;
    color: var(--nav-text);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s ease;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
}

.header-tools__language-dropdown .language-option:hover {
    background-color: rgba(124, 179, 66, 0.1);
    color: var(--nav-hover);
}

.header-tools__language-dropdown .language-option.active {
    background-color: rgba(124, 179, 66, 0.15);
    color: var(--nav-hover);
    font-weight: 600;
}

/* ==================== 可折叠搜索框 ==================== */
.header-search {
    position: fixed;
    top: 80px;
    right: 0;
    width: 0;
    height: 70px;
    background: var(--nav-bg, var(--bg-light, #fff));
    border-bottom: 1px solid var(--nav-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    z-index: 999;
    overflow: hidden;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
}

.header-search.active {
    width: 500px;
    max-width: 90vw;
}

.header-search__container {
    width: 100%;
    padding: 0 20px;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease 0.1s;
}

.header-search.active .header-search__container {
    opacity: 1;
}

.header-search__form {
    display: flex;
    align-items: center;
    width: 100%;
    gap: 10px;
    position: relative;
}

.header-search__input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--nav-border);
    border-radius: 8px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.3s ease;
    background-color: var(--nav-bg, var(--bg-light, #f8f8f8));
}

.header-search__input:focus {
    border-color: var(--nav-hover);
    background-color: #fff;
}

.header-search__submit,
.header-search__close {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--nav-text);
    transition: color 0.3s ease;
    border-radius: 4px;
    width: 40px;
    height: 40px;
}

.header-search__submit:hover,
.header-search__close:hover {
    color: var(--nav-hover);
    background-color: rgba(124, 179, 66, 0.1);
}

.header-search__submit svg,
.header-search__close svg {
    width: 20px;
    height: 20px;
}