/* ========================================
   全新响应式企业导航栏样式
   ======================================== */

/* 重置和基础样式 */
* {
    box-sizing: border-box;
}

/* 企业导航头部容器 */
.enterprise-header {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: #fff;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

/* ========================================
   顶部信息栏样式
   ======================================== */
.top-info-bar {
    background: #1a1a1a;
    border-bottom: 1px solid #333;
    min-height: 40px;
    padding: 8px 0;
    transition: all 0.3s ease;
}

.top-content {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    min-height: 24px;
}

.contact-info {
    display: flex;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
}

.contact-item {
    display: inline-flex !important;
    align-items: center;
    gap: 8px;
    color: #e0e0e0;
    font-size: 13px;
    font-weight: 400;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item:hover {
    color: #fff;
}

.contact-item i {
    color: #4a90e2;
    font-size: 12px;
    min-width: 12px;
}

/* ========================================
   主导航栏样式
   ======================================== */
.main-navbar {
    background: #fff;
    padding: 0;
    min-height: 80px;
    border-bottom: 1px solid #f0f0f0;
    position: relative; /* 为绝对定位的子元素提供定位上下文 */
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: center; /* 整体居中 */
    min-height: 80px;
    padding: 0 15px;
    max-width: 1200px; /* 限制最大宽度 */
    margin: 0 auto; /* 容器居中 */
}

/* Logo区域 */
.navbar-brand-area {
    flex-shrink: 0;
    margin-right: 30px; /* logo和导航间距30px */
}

.brand-link {
    display: inline-block;
    padding: 10px 0;
    text-decoration: none;
}

.brand-logo {
    height: 60px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    transition: all 0.3s ease;
}

.brand-link:hover .brand-logo {
    transform: scale(1.05);
}

/* 桌面端导航菜单 */
.desktop-menu {
    display: flex;
    align-items: center;
    flex: 0 0 auto; /* 不自动扩展 */
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 5px;
}

.menu-item {
    position: relative;
}

.menu-link {
    display: flex !important;
    align-items: center;
    justify-content: center;
    padding: 20px 20px 25px 20px; /* 底部多留5px给下划线 */
    color: #000;
    font-family: 'Microsoft YaHei', '微软雅黑', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    font-weight: normal;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    position: relative;
    min-height: 60px; /* 确保有足够高度容纳两行文字 */
}

.menu-link i {
    font-size: 10px;
    transition: transform 0.3s ease;
    margin-left: 8px;
}

/* 菜单文本容器 */
.menu-text-wrapper {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    line-height: 1.2;
    width: 100%;
    height: 100%;
    text-align: center;
    position: relative;
    z-index: 2;
    gap: 10px; /* 中文和英文之间的间距 */
}

/* 中文标题样式 */
.menu-chinese {
    display: block !important;
    font-size: 16px;
    font-weight: 600;
    font-family: "Microsoft YaHei", "微软雅黑", "SimHei", "黑体", "Heiti SC", "Heiti TC", Arial, sans-serif !important;
    color: #000;
    text-transform: none;
    letter-spacing: 0;
    order: 1 !important;
    margin: 0 !important;
    line-height: 1.2;
}

/* 英文菜单样式 */
.menu-english {
    font-size: 13px !important;
    font-weight: normal !important;
    font-family: Arial, sans-serif !important;
    color: #aaa !important;
    text-transform: capitalize !important;
    margin: 0 !important;
    letter-spacing: 0;
    transition: color 0.3s ease;
    display: block !important;
    order: 2 !important;
    line-height: 1;
    margin-top: 2px !important;
}

.menu-link:hover .menu-english {
    color: #0055a2 !important;
}

.menu-link:hover {
    color: #0055a2;
    text-decoration: none;
}

.menu-link:hover .menu-chinese {
    color: #0055a2;
}

.menu-link i {
    font-size: 10px;
    transition: transform 0.3s ease;
}

.has-dropdown:hover .menu-link i {
    transform: rotate(180deg);
}

/* 导航链接下划线效果 */
.menu-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20px;
    right: 20px;
    height: 3px;
    background: linear-gradient(90deg, #4a90e2, #357abd);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
    z-index: 1;
}

.menu-link:hover::after,
.menu-item.active .menu-link::after {
    transform: scaleX(1);
}

/* 下拉菜单面板 */
.dropdown-panel {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 280px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: all 0.3s ease;
    z-index: 1000;
    border: 1px solid #e8e8e8;
}

.has-dropdown:hover .dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-content {
    padding: 20px 0;
}

.dropdown-section {
    padding: 0 20px 15px;
    border-bottom: 1px solid #f0f0f0;
    margin-bottom: 15px;
}

.dropdown-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.section-title {
    margin: 0 0 12px;
    font-size: 14px;
    font-weight: 700;
    color: #2c3e50;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.section-title a:hover {
    color: #4a90e2;
}

.section-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dropdown-link {
    display: block;
    padding: 8px 12px;
    color: #666;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.dropdown-link:hover {
    background: #f8f9ff;
    color: #4a90e2;
    text-decoration: none;
    transform: translateX(5px);
}

.single-link {
    padding: 12px 20px;
    border-bottom: 1px solid #f0f0f0;
}

.single-link:last-child {
    border-bottom: none;
}

/* 移动端菜单按钮 */
.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 2px solid #333;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    gap: 4px;
    position: absolute; /* 绝对定位 */
    right: 15px; /* 固定在右侧 */
    top: 50%;
    transform: translateY(-50%);
    z-index: 10000;
    pointer-events: auto; /* 确保可以点击 */
    user-select: none; /* 防止文本选择 */
    -webkit-tap-highlight-color: transparent; /* 移除点击高亮 */
}

.mobile-toggle:hover {
    border-color: #4a90e2;
    transform: translateY(-50%) scale(1.05); /* 保持垂直居中的同时缩放 */
}

.toggle-line {
    width: 20px;
    height: 2px;
    background: #333;
    transition: all 0.3s ease;
}

.mobile-toggle:hover .toggle-line {
    background: #4a90e2;
}

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

.mobile-toggle.active .toggle-line:nth-child(2) {
    opacity: 0;
}

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

/* ========================================
   移动端菜单样式 - 使用!important确保优先级
   ======================================== */
.mobile-menu-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background: rgba(0, 0, 0, 0.5) !important;
    z-index: 9998 !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transition: all 0.3s ease !important;
    display: block !important;
}

.mobile-menu-overlay.active {
    opacity: 1 !important;
    visibility: visible !important;
    background: rgba(0, 0, 0, 0.5) !important;
}

.mobile-navigation {
    position: fixed !important;
    top: 0 !important;
    right: -100% !important;
    width: 320px !important;
    max-width: 85vw !important;
    height: 100vh !important;
    background: #fff !important;
    z-index: 9999 !important;
    transition: right 0.3s ease !important;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1) !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
    transform: translateX(0) !important;
}

.mobile-navigation.active {
    right: 0 !important;
    transform: translateX(0) !important;
}

/* 确保移动端菜单内容可见 */
.mobile-header {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: 20px !important;
    border-bottom: 1px solid #f0f0f0 !important;
    background: #f9f9f9 !important;
    flex-shrink: 0 !important;
}

/* 防止背景滚动但保持菜单内滚动 */
body.mobile-menu-open {
    position: fixed !important;
    width: 100% !important;
    height: 100vh !important;
    overflow: hidden !important;
}

/* 确保移动端菜单内容可以滚动 */
.mobile-menu-content {
    flex: 1 !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important; /* iOS平滑滚动 */
    padding: 20px 0 !important;
    background: #ffffff !important;
    /* 确保触摸滚动在iOS设备上正常工作 */
    overscroll-behavior: contain !important;
}

.mobile-nav-list {
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

.mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid #f0f0f0;
    background: #f9f9f9;
}

.mobile-brand {
    text-decoration: none;
}

.mobile-brand-logo {
    height: 40px;
    width: auto;
}

.mobile-close {
    width: 40px;
    height: 40px;
    background: #ff4757;
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-close:hover {
    background: #ff3742;
    transform: scale(1.1);
}

.mobile-menu-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px 0;
}

.mobile-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-item {
    border-bottom: 1px solid #f0f0f0;
    position: relative;
}

.mobile-nav-item.has-submenu {
    display: flex;
    flex-direction: column;
}

.mobile-nav-item.has-submenu > .mobile-nav-header {
    display: flex;
    align-items: center;
    width: 100%;
}

.mobile-nav-item.has-submenu > .mobile-nav-header > .mobile-nav-link {
    flex: 1;
}

/* 移动端导航头部 */
.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.mobile-nav-link {
    display: flex !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    padding: 15px 20px;
    color: #333;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    flex: 1; /* 让链接占据剩余空间 */
}

/* 子菜单切换按钮样式在下方统一定义 */

/* 移动端中文标题样式 */
.mobile-nav-link .menu-chinese {
    font-size: 16px !important;
    font-weight: 600 !important;
    color: inherit;
    order: 1 !important;
}

.mobile-nav-link .menu-english {
    font-size: 12px !important;
    font-weight: 400 !important;
    color: #888 !important;
    text-transform: lowercase !important;
    margin-top: 3px !important;
    letter-spacing: 0.3px;
    display: block !important;
    order: 2 !important;
}

.mobile-nav-link:hover .menu-english {
    color: #4a90e2;
}

.mobile-nav-link:hover {
    background: #f8f9ff;
    color: #4a90e2;
    text-decoration: none;
}

.submenu-toggle {
    position: absolute;
    right: 10px;
    top: 0;
    transform: none;
    background: transparent;
    border: none;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
    width: 60px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.submenu-toggle::after {
    content: '';
    display: block;
    width: 7px;
    height: 7px;
    border-left: 1px solid #888;
    border-bottom: 1px solid #888;
    transform: translateY(-25%) rotate(-45deg);
    transition: all 0.3s ease;
}

.submenu-toggle:hover {
    color: #4a90e2;
}

.submenu-toggle i {
    display: none; /* 隐藏字体图标 */
}

/* 展开时箭头旋转 */
.mobile-nav-item.active .submenu-toggle::after {
    transform: translateY(25%) rotate(135deg);
}

.mobile-submenu {
    list-style: none;
    margin: 0;
    padding: 0;
    background: #f8f9fa;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

/* 展开子菜单 */
.mobile-nav-item.active .mobile-submenu,
.mobile-submenu.active {
    max-height: 500px; /* 足够大的值以容纳所有子菜单 */
}

.mobile-submenu-item {
    border-bottom: 1px solid #e9ecef;
    position: relative;
}

.mobile-submenu-item:last-child {
    border-bottom: none;
}

.mobile-submenu-link {
    display: block;
    padding: 12px 20px;
    color: #666;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.mobile-submenu-link:hover {
    background: #e9ecef;
    color: #4a90e2;
    text-decoration: none;
    padding-left: 25px;
}

/* 强制移除二级菜单链接前的图标 */
.mobile-submenu-link::before {
    content: none !important;
    display: none !important;
}

.mobile-contact {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    margin-left: 20px;
    margin-right: 20px;
}

.mobile-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    color: #666;
    font-size: 14px;
}

.mobile-contact-item i {
    color: #4a90e2;
    width: 16px;
}

/* ========================================
   响应式设计
   ======================================== */

/* 平板设备 */
@media (max-width: 991.98px) {
    .desktop-menu {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .contact-item.d-none.d-md-inline-flex {
        display: none !important;
    }
    
    .nav-menu {
        gap: 0;
    }
    
    .menu-link {
        padding: 20px 15px;
        font-size: 14px;
    }

    .enterprise-header {
        position: sticky;
    }
}

/* 手机设备 */
@media (max-width: 767.98px) {
    .top-info-bar {
        min-height: 35px;
        padding: 6px 0;
    }
    
    .main-navbar {
        min-height: 70px;
    }
    
    .navbar-content {
        min-height: 70px;
    }
    
    .brand-logo {
        height: 50px;
    }
    
    .contact-info {
        gap: 12px;
        flex-wrap: nowrap; /* 不换行，避免元素被压到第二行 */
        overflow-x: auto; /* 内容超出时横向滚动 */
        -webkit-overflow-scrolling: touch; /* iOS 平滑滚动 */
    }
    .contact-item,
    .contact-item span {
        white-space: nowrap; /* 防止电话长号换行 */
    }
    
    .contact-item {
        font-size: 12px;
    }
    
    .mobile-navigation {
        width: 280px;
    }
}

/* 超小设备 */
@media (max-width: 575.98px) {
    .contact-info {
        gap: 15px;
        flex-wrap: nowrap;
        overflow-x: auto;
    }
    
    .contact-item:last-child {
        display: none;
    }
    
    .brand-logo {
        height: 45px;
    }
    
    .mobile-navigation {
        width: 100%;
        max-width: 100vw;
    }
}

/* 滚动状态样式 */
.enterprise-header.scrolled {
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.15);
}

.enterprise-header.scrolled .top-info-bar {
    min-height: 35px;
    padding: 5px 0;
}

.enterprise-header.scrolled .main-navbar {
    min-height: 70px;
}

.enterprise-header.scrolled .brand-logo {
    height: 50px;
}

/* 隐藏旧的导航样式 */
.header-corporate,
.top-bar,
.main-navigation {
    display: none !important;
}

/* ===========================================
   强制移动端菜单显示 - 最高优先级
   =========================================== */
body .mobile-menu-overlay.active {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background: rgba(0, 0, 0, 0.5) !important;
    z-index: 9998 !important;
    opacity: 1 !important;
    visibility: visible !important;
    display: block !important;
}

body .mobile-navigation.active {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    width: 320px !important;
    height: 100vh !important;
    background: #fff !important;
    z-index: 9999 !important;
    display: flex !important;
    flex-direction: column !important;
    transform: translateX(0) !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* 强制显示移动端菜单按钮 */
@media (max-width: 991.98px) {
    body .mobile-toggle {
        display: flex !important;
        position: absolute !important;
        right: 15px !important;
        top: 50% !important;
        transform: translateY(-50%) !important;
        z-index: 100000 !important;
    }
}

/* ========================================
   页脚导航样式
   ======================================== */
.footer-navigation {
    background: #2c3e50;
    padding: 60px 0 40px;
    color: #fff;
}

.footer-nav-column {
    margin-bottom: 30px;
}

.footer-nav-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 13px;
    color: #fff;
    padding-bottom: 6px;
    margin-top: 0;
}

.footer-nav-title a {
    color: #fff;
    text-decoration: none;
}

.footer-nav-title a:hover {
    color: #4a90e2;
}

.footer-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    margin-top: 0;
}

.footer-nav-list li {
    margin-bottom: 8px;
}

.footer-nav-list li a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    display: block;
    padding: 3px 0;
}

.footer-nav-list li a:hover {
    color: #4a90e2;
    text-decoration: none;
}

/* 响应式设计 */
@media (max-width: 767.98px) {
    .footer-navigation {
        padding: 40px 0 30px;
    }
    
    .footer-nav-column {
        margin-bottom: 25px;
    }
    
    .footer-nav-title {
        font-size: 16px;
        margin-bottom: 15px;
    }
    
    .footer-nav-list li a {
        font-size: 13px;
    }
}