/* ========== 1. 全局样式 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

body {
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    overflow-x: hidden;
}

body a, body a:link, body a:visited, body a:hover, body a:active, body a:focus {
    text-decoration: none;
}

img {
    border: none; /* 去除边框 */
    outline: none; /* 去除轮廓 */
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 2. 头部区域 - 修复版 ========== */
.site-header {
    background-color: #003366;
    color: white;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.15);
    overflow: visible;
}

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

/* 2.1 Logo 区域 */
.site-branding {
    flex: 0 0 auto;
    max-width: 300px;
    z-index: 1001;
}

.site-branding .logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: white;
    gap: 12px;
    height: 80px;
}

.site-branding .logo-icon {
    color: #ffcc00;
    font-size: 36px;
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    text-align: center;
}

.site-title-wrapper {
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
}

.site-title {
    font-size: 24px;
    font-weight: 700;
    margin: 0;
    line-height: 1.2;
    color: white;
    white-space: nowrap;
}

.site-description {
    font-size: 13px;
    margin: 4px 0 0 0;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
    line-height: 1.3;
    white-space: nowrap;
}

/* 2.2 桌面端导航容器 */
.desktop-navigation {
    display: flex;
    align-items: center;
    height: 100%;
    flex: 1;
    justify-content: flex-end;
    gap: 30px;
    min-width: 0;
}

/* 2.3 主导航菜单 - 修复悬停框 */
.main-navigation {
    flex: 0 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
}

.main-navigation ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 25px;
    align-items: center;
    height: 100%;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.main-navigation ul li {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 100%;
    transition: background-color 0.2s ease;
}

/* 修复：菜单项链接样式 - 调整悬停框形状 */
.main-navigation ul li a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 16px;
    padding: 8px 12px;
    display: inline-flex;
    align-items: center;
    height: 100%;
    position: relative;
    border-radius: 4px; /* 改为4px使其为矩形而不是椭圆 */
    white-space: nowrap;
    box-sizing: border-box;
}

/* 修复：下划线动画 - 更改为底部边框 */
.main-navigation ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background-color: #ffcc00;
    transition: width 0.3s ease, left 0.3s ease;
    transform: translateX(-50%);
}

/* 修复：悬停背景框形状 */
.main-navigation ul li a:hover {
    color: #ffcc00;
    background-color: rgba(255, 204, 0, 0.1);
}

.main-navigation ul li a:hover::after {
    width: calc(100% - 24px); /* 减去padding，确保与文字宽度匹配 */
    left: 50%;
}

/* 当前菜单项样式 */
.main-navigation ul li.current-menu-item a {
    color: #ffcc00;
}

.main-navigation ul li.current-menu-item a::after {
    width: calc(100% - 24px);
    left: 50%;
    background-color: #ffcc00;
}

/* ========== 2.3.1 下拉菜单样式 - 完全修复 ========== */
.main-navigation ul li.menu-item-has-children {
    position: relative;
}

.main-navigation ul li.menu-item-has-children > a::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    margin-left: 8px;
    font-size: 12px;
    transition: transform 0.3s ease;
    position: static;
    width: auto;
    height: auto;
    background: none;
    transform: none;
}

.main-navigation ul li.menu-item-has-children:hover > a::after {
    transform: rotate(180deg);
}

/* 修复：桌面端子菜单样式 - 确保正确显示，取消滚动条 */
.main-navigation ul li .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #ffffff !important;
    width: 220px; /* 固定宽度 */
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    border-radius: 4px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-5px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    padding: 8px 0;
    margin: 0;
    border: 1px solid #e0e0e0;
    list-style: none !important;
    pointer-events: none;
    transform-origin: top center;
    /* 取消所有滚动条相关设置 */
    max-height: none;
    overflow: visible;
    overflow-y: visible;
}

/* 修复：子菜单项样式 */
.main-navigation ul li .sub-menu li {
    width: 100%;
    height: auto !important;
    display: block !important;
    position: relative;
    margin: 0 !important;
    padding: 0 !important;
    float: none !important;
    transition: background-color 0.2s ease;
}

.main-navigation ul li .sub-menu li a {
    color: #003366 !important;
    padding: 10px 20px !important;
    font-size: 14px;
    font-weight: 500;
    display: block;
    text-align: left;
    transition: all 0.2s ease;
    border-bottom: 1px solid #f0f0f0;
    height: auto !important;
    background-color: transparent !important;
    line-height: 1.4;
    white-space: normal; /* 允许换行 */
    border-radius: 0;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
    width: 100%;
}

.main-navigation ul li .sub-menu li:last-child a {
    border-bottom: none;
}

/* 移除子菜单链接的下划线动画 */
.main-navigation ul li .sub-menu li a::after {
    display: none;
}

/* 子菜单项悬停效果 */
.main-navigation ul li .sub-menu li a:hover {
    background-color: #f5f8fa !important;
    color: #003366 !important;
    padding-left: 25px !important;
}

.main-navigation ul li .sub-menu li a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background-color: #ffcc00;
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.main-navigation ul li .sub-menu li a:hover::before {
    transform: scaleY(1);
}

/* 鼠标悬停显示子菜单 */
.main-navigation ul li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

/* 修复：子菜单的三角指示器 */
.main-navigation ul li.menu-item-has-children .sub-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 20px;
    width: 12px;
    height: 12px;
    background-color: #ffffff;
    transform: rotate(45deg);
    border-top: 1px solid #e0e0e0;
    border-left: 1px solid #e0e0e0;
    z-index: 1;
}

/* ========== 2.4 桌面端子菜单特殊处理 ========== */
@media (min-width: 992px) {
    .main-navigation {
        position: static !important;
    }
    
    .main-navigation ul li .sub-menu {
        display: block !important;
        position: absolute !important;
        top: 100% !important;
        left: 0 !important;
        width: 220px !important; /* 固定宽度 */
        background-color: #ffffff !important;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15) !important;
        opacity: 0 !important;
        visibility: hidden !important;
        transform: translateY(-5px) !important;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
        z-index: 1000 !important;
        /* 取消滚动条 */
        max-height: none !important;
        overflow: visible !important;
        overflow-y: visible !important;
    }
    
    .main-navigation ul li:hover .sub-menu {
        opacity: 1 !important;
        visibility: visible !important;
        transform: translateY(0) !important;
    }
    
    /* 修复：确保子菜单项垂直排列 */
    .main-navigation ul li .sub-menu li {
        display: block !important;
        float: none !important;
        width: 100% !important;
        background-color: #ffffff !important;
    }
}

/* 2.4 语言切换器容器 */
.header-language-switcher {
    flex: 0 0 auto;
    margin-left: 0;
    height: 100%;
    display: flex;
    align-items: center;
    z-index: 1001;
}

/* 2.5 下拉式语言选择器 */
.language-switcher-dropdown {
    position: relative;
    width: 160px;
    height: 40px;
    z-index: 100;
    flex-shrink: 0;
}

.language-switcher-dropdown select.language-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    padding: 0 40px 0 15px;
    font-size: 14px;
    font-weight: 500;
    color: white;
    cursor: pointer;
    width: 100%;
    height: 100%;
    outline: none;
    transition: all 0.3s ease;
    line-height: 40px;
    box-sizing: border-box;
    background-color: #003366 !important;
}

.language-switcher-dropdown select.language-select option {
    background-color: #003366 !important;
    color: white !important;
    padding: 10px 15px;
    font-size: 14px;
}

.language-switcher-dropdown select.language-select option:checked {
    background-color: #ffcc00 !important;
    color: #003366 !important;
    font-weight: 600;
}

.language-switcher-dropdown select.language-select option:hover {
    background-color: #0055aa !important;
}

.language-switcher-dropdown select.language-select option:focus {
    background-color: #004488 !important;
}

.language-switcher-dropdown select.language-select:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #ffcc00;
    box-shadow: 0 0 10px rgba(255, 204, 0, 0.2);
}

.language-switcher-dropdown select.language-select:focus {
    background: rgba(255, 255, 255, 0.25);
    border-color: #ffcc00;
    box-shadow: 0 0 0 2px rgba(255, 204, 0, 0.3);
}

.language-switcher-dropdown .select-arrow {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: white;
    font-size: 12px;
}

/* 2.6 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    width: 40px;
    height: 40px;
    padding: 0;
    margin: 0;
    position: relative;
    z-index: 1001;
}

.menu-toggle-icon {
    display: block;
    position: relative;
    width: 24px;
    height: 2px;
    background-color: white;
    margin: 0 auto;
    transition: all 0.3s ease;
}

.menu-toggle-icon::before,
.menu-toggle-icon::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: white;
    left: 0;
    transition: all 0.3s ease;
}

.menu-toggle-icon::before {
    top: -8px;
}

.menu-toggle-icon::after {
    bottom: -8px;
}

.mobile-menu-toggle.active .menu-toggle-icon {
    background-color: transparent;
}

.mobile-menu-toggle.active .menu-toggle-icon::before {
    top: 0;
    transform: rotate(45deg);
}

.mobile-menu-toggle.active .menu-toggle-icon::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* 2.7 移动端导航菜单 */
.mobile-navigation {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: #003366;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    z-index: 999;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-navigation.active {
    display: block;
    max-height: 500px;
    padding: 20px 0;
    overflow-y: auto;
}

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

.mobile-navigation ul li {
    margin: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: background-color 0.2s ease;
}

.mobile-navigation ul li:last-child {
    border-bottom: none;
}

.mobile-navigation ul li a {
    display: block;
    color: white;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 15px 20px;
    transition: all 0.3s ease;
    position: relative;
    border-radius: 0; /* 移动端不需要圆角 */
}

.mobile-navigation ul li a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffcc00;
    padding-left: 25px;
}

/* 修复：移动端下拉菜单样式 */
.mobile-navigation ul li.menu-item-has-children > a {
    position: relative;
    padding-right: 50px;
}

.mobile-navigation ul li.menu-item-has-children > a::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 20px;
    font-size: 12px;
    transition: transform 0.3s ease;
}

.mobile-navigation ul li.menu-item-has-children.active > a::after {
    transform: rotate(180deg);
}

.mobile-navigation ul li .sub-menu {
    max-height: 0;
    overflow: hidden;
    background-color: rgba(0, 51, 102, 0.05) !important;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding-left: 20px;
    list-style: none;
    border-left: 3px solid #ffcc00;
    margin-left: 10px;
}

.mobile-navigation ul li.active .sub-menu {
    max-height: 500px;
}

.mobile-navigation ul li .sub-menu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-navigation ul li .sub-menu li a {
    padding: 12px 20px;
    font-size: 15px;
    background-color: transparent !important;
    color: rgba(255, 255, 255, 0.9);
}

.mobile-navigation ul li .sub-menu li:last-child {
    border-bottom: none;
}

.mobile-language-switcher {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 10px;
}

.mobile-language-switcher .language-switcher-dropdown {
    width: 100%;
}

/* ========== 新增：自定义语言切换器样式 ========== */
/* 带国旗图标的下拉菜单样式 */
.language-switcher-dropdown .current-language {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px; /* 矩形边框 */
    cursor: pointer;
    transition: all 0.3s ease;
    color: white;
}

.language-switcher-dropdown .current-language:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #ffcc00;
}

.language-switcher-dropdown .language-icon {
    margin-right: 6px;
    font-size: 1.2em;
}

.language-switcher-dropdown .language-name {
    font-weight: 500;
    margin-right: 8px;
    color: white;
}

.language-switcher-dropdown .dropdown-arrow {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8em;
    transition: transform 0.3s ease;
}

.language-switcher-dropdown .language-dropdown-menu {
    position: absolute;
    top: calc(100% + 5px);
    right: 0;
    min-width: 180px;
    background: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    padding: 5px 0;
}

.language-switcher-dropdown .language-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-switcher-dropdown .language-option {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    color: #333;
    text-decoration: none;
    transition: background 0.2s ease;
}

.language-switcher-dropdown .language-option:hover {
    background: #f5f5f5;
}

.language-switcher-dropdown .language-option .language-icon {
    margin-right: 10px;
}

.language-switcher-dropdown .language-option .language-name {
    flex-grow: 1;
    color: #333;
}

.language-switcher-dropdown .language-option .language-code {
    font-size: 0.8em;
    color: #999;
    text-transform: uppercase;
}

/* 移动端语言切换器 */
.language-switcher-mobile {
    position: relative;
    margin: 20px 0;
}

.language-switcher-mobile .language-select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 16px;
    appearance: none;
    -webkit-appearance: none;
}

.language-switcher-mobile .select-arrow {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: white;
}

/* 移动端导航菜单样式增强 */
.mobile-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-menu li {
    margin: 0;
}

.mobile-menu a {
    display: block;
    padding: 12px 0;
    color: white;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-weight: 500;
    transition: all 0.3s ease;
}

.mobile-menu a:hover {
    color: #ffcc00;
    background-color: rgba(255, 255, 255, 0.05);
}

/* ========== 3. 页面主要内容区域 ========== */
/* 3.1 英雄区域 */
.hero {
    background: 
        linear-gradient(
            135deg, 
            rgba(0, 51, 102, 0.7) 0%, 
            rgba(0, 51, 102, 0.5) 50%,
            rgba(0, 51, 102, 0.3) 100%
        ),
        url('https://www.leikeglobal.com/wp-content/uploads/2026/01/leikeglobal.com_.banner.jpg')
        center / cover no-repeat #003366;
    color: white;
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 500px;
    display: flex;
    align-items: center;
}

.hero .container {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
    padding: 0 20px;
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
    line-height: 1.2;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    font-weight: 300;
    line-height: 1.6;
    opacity: 0.95;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
}

.cta-button {
    display: inline-block;
    background-color: #ffcc00;
    color: #003366;
    padding: 16px 45px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 18px;
    transition: all 0.3s ease;
    border: 2px solid #ffcc00;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: #003366;
    transition: left 0.3s ease;
    z-index: -1;
}

.cta-button:hover {
    color: #ffcc00;
    border-color: #ffcc00;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.cta-button:hover::before {
    left: 0;
}

/* 响应式调整 */
@media (max-width: 991px) {
    .hero {
        padding: 80px 0;
        min-height: 400px;
    }
    
    .hero h2 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .cta-button {
        padding: 14px 35px;
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 70px 0;
        min-height: 350px;
        background: 
            linear-gradient(
                to bottom, 
                rgba(0, 51, 102, 0.8) 0%, 
                rgba(0, 51, 102, 0.6) 100%
            ),
            url('https://www.leikeglobal.com/wp-content/uploads/2026/01/leikeglobal.com_.banner.jpg')
            center / cover no-repeat #003366;
        background-attachment: scroll;
    }
    
    .hero h2 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
        min-height: 300px;
        background: 
            linear-gradient(
                to bottom, 
                rgba(0, 51, 102, 0.85) 0%, 
                rgba(0, 51, 102, 0.7) 100%
            ),
            url('https://www.leikeglobal.com/wp-content/uploads/2026/01/leikeglobal.com_.banner.jpg')
            center / cover no-repeat #003366;
    }
    
    .hero h2 {
        font-size: 28px;
    }
    
    .hero p {
        font-size: 15px;
    }
    
    .cta-button {
        padding: 12px 30px;
        font-size: 15px;
        width: 100%;
        max-width: 280px;
    }
}

/* 3.2 服务特点区域 */
.features {
    padding: 100px 0;
    background-color: white;
    position: relative;
}

.section-title {
    text-align: center;
    color: #003366;
    margin-bottom: 60px;
    font-size: 36px;
    position: relative;
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background-color: #ffcc00;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    background-color: #f8f9fa;
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 51, 102, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: #003366;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    background-color: #003366;
    color: #ffcc00;
    width: 80px;
    height: 80px;
    line-height: 80px;
    border-radius: 50%;
    margin: 0 auto 25px;
    font-size: 34px;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    background-color: #ffcc00;
    color: #003366;
    transform: rotateY(180deg);
}

.feature-card h3 {
    color: #003366;
    margin-bottom: 15px;
    font-size: 24px;
    font-weight: 600;
}

.feature-card p {
    color: #666;
    line-height: 1.7;
    font-size: 16px;
}

.feature-card a {
    text-decoration: none;
}

.features-grid .feature-card .feature-card-link,
.features-grid .feature-card .feature-card-link:hover,
.features-grid .feature-card .feature-card-link:focus,
.features-grid .feature-card .feature-card-link:active,
.features-grid .feature-card .feature-card-link:visited {
    text-decoration: none !important;
    color: inherit;
}

/* 3.3 关于雷克国际物流 */
.about {
    padding: 100px 0;
    background-color: #f0f4f8;
    position: relative;
}

.about-content {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 60px;
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text h2 {
    color: #003366;
    margin-bottom: 25px;
    font-size: 32px;
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
}

.about-text h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: #ffcc00;
}

.about-text p {
    margin-bottom: 25px;
    font-size: 17px;
    line-height: 1.8;
    color: #444;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: #003366;
    margin-bottom: 5px;
}

.stat-number span {
    font-size: 20px;
}

.stat-label {
    font-size: 14px;
    color: #666;
    font-weight: 500;
}

.about-image {
    flex: 1;
    min-width: 300px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    position: relative;
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

/* 3.4 运输方式对比 */
.comparison {
    padding: 100px 0;
    background-color: white;
}

.comparison-table {
    overflow-x: auto;
    margin: 50px 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border-radius: 12px;
}

.comparison-table table {
    width: 100%;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.comparison-table th {
    background: #003366;
    color: white;
    font-weight: 600;
    font-size: 16px;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.advantage {
    color: #28a745;
    font-weight: 600;
}

.disadvantage {
    color: #dc3545;
    font-weight: 600;
}

.neutral {
    color: #ffc107;
    font-weight: 600;
}

.comparison-summary {
    margin-top: 60px;
    background-color: #f8f9fa;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.comparison-summary h3 {
    color: #003366;
    margin-bottom: 30px;
    font-size: 28px;
    text-align: center;
    font-weight: 700;
}

.summary-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 20px;
}

.point {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.point:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.point i {
    font-size: 2rem;
    color: #003366;
    margin-top: 5px;
    flex-shrink: 0;
}

.point h4 {
    color: #003366;
    margin-bottom: 10px;
    font-size: 18px;
    font-weight: 600;
}

.point p {
    color: #666;
    line-height: 1.6;
    font-size: 15px;
}

/* 3.5 新闻区域 */
.news {
    padding: 100px 0;
    background-color: #f0f4f8;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.news-card {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 51, 102, 0.1);
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.news-image {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-content {
    padding: 30px;
}

.news-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: #666;
    flex-wrap: wrap;
}

.news-meta i {
    margin-right: 5px;
}

.news-category a {
    color: #003366;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.news-category a:hover {
    color: #ffcc00;
}

.news-title {
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: 600;
    line-height: 1.4;
}

.news-title a {
    color: #003366;
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-title a:hover {
    color: #0056b3;
}

.news-excerpt {
    color: #666;
    line-height: 1.7;
    font-size: 15px;
    margin-bottom: 20px;
}

.news-read-more {
    color: #003366;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: all 0.3s ease;
}

.news-read-more:hover {
    color: #ffcc00;
    gap: 10px;
}

.no-news {
    text-align: center;
    padding: 40px;
    color: #666;
    font-size: 18px;
    grid-column: 1 / -1;
}

.news-archive-link {
    text-align: center;
    margin-top: 50px;
}

.view-all-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background-color: #003366;
    color: white;
    padding: 15px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.3s ease;
    border: 2px solid #003366;
}

.view-all-btn:hover {
    background-color: transparent;
    color: #003366;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 3.6 联系信息 */
.contact {
    padding: 100px 0;
    background-color: white;
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 51, 102, 0.1);
}

.contact-item:hover {
    transform: translateX(5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: #ffcc00;
}

.contact-icon {
    background-color: #003366;
    color: white;
    width: 50px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    border-radius: 50%;
    flex-shrink: 0;
    font-size: 20px;
    transition: all 0.3s ease;
}

.contact-item:hover .contact-icon {
    background-color: #ffcc00;
    color: #003366;
    transform: rotateY(180deg);
}

.contact-details h4 {
    color: #003366;
    margin-bottom: 8px;
    font-size: 18px;
    font-weight: 600;
}

.contact-details p {
    color: #666;
    line-height: 1.6;
    font-size: 15px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background-color: #003366;
    color: white;
    border-radius: 50%;
    text-decoration: none;
    font-size: 20px;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: #ffcc00;
    color: #003366;
    transform: translateY(-5px) scale(1.1);
}

/* 二维码悬停效果 */
.qr-code-wrapper {
    position: relative;
    display: inline-block;
}

.qr-code-popup {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    padding: 15px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    min-width: 160px;
    text-align: center;
    margin-bottom: 10px;
}

.qr-code-popup:before {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: white;
}

.qr-code-popup img {
    max-width: 150px;
    height: auto;
    display: block;
    margin: 0 auto 8px;
}

.qr-code-caption {
    font-size: 12px;
    color: #666;
    margin: 0;
}

.qr-code-wrapper:hover .qr-code-popup {
    opacity: 1;
    visibility: visible;
}

.social-link:hover {
    background: #007bff;
    color: white;
    transform: translateY(-3px);
}

.qr-code-trigger {
    cursor: pointer;
}

/* 微信/二维码图片悬停效果 */
.social-link-wrapper {
    position: relative;
    display: inline-block;
}

.qr-image-popup {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: 8px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
    padding: 15px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 1000;
    min-width: 180px;
    max-width: 220px;
    text-align: center;
    margin-bottom: 15px;
    border: 1px solid #f0f0f0;
}

.qr-image-popup:before {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 10px solid transparent;
    border-top-color: white;
    filter: drop-shadow(0 2px 2px rgba(0,0,0,0.1));
}

.qr-image-popup img {
    max-width: 150px;
    height: auto;
    display: block;
    margin: 0 auto 10px;
    border-radius: 4px;
    border: 1px solid #f0f0f0;
}

.qr-image-caption {
    font-size: 13px;
    color: #666;
    margin: 0;
    line-height: 1.4;
    font-weight: 500;
}

/* 悬停效果 */
.social-link-wrapper:hover .qr-image-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-5px);
}

/* 微信特定样式 */
.wechat-wrapper .qr-image-popup {
    background: linear-gradient(135deg, #07c160 0%, #07c160 5%, #ffffff 5%);
}

.wechat-wrapper .qr-image-popup:before {
    border-top-color: #ffffff;
}

.wechat-wrapper .qr-image-caption {
    color: #07c160;
    font-weight: 600;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .qr-code-popup {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 80%;
        max-width: 250px;
        margin-bottom: 0;
        z-index: 10000;
    }
    
    .qr-code-popup:before {
        display: none;
    }
    .qr-image-popup {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%) scale(0.95);
        width: 85%;
        max-width: 250px;
        margin-bottom: 0;
        z-index: 9999;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    }
    .qr-image-popup:before {
        display: none;
    }
    
    .social-link-wrapper:hover .qr-image-popup {
        transform: translate(-50%, -50%) scale(1);
    }
    
    .social-link {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* 防止在移动端悬停效果影响点击 */
@media (hover: none) and (pointer: coarse) {
    .social-link-wrapper .qr-image-popup {
        display: none;
    }
    
    .social-link-wrapper:active .qr-image-popup,
    .social-link-wrapper.touch-active .qr-image-popup {
        display: block;
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
        visibility: visible;
    }
}

/* 微信图标特定颜色 */
.social-link-wrapper.wechat-wrapper .social-link:hover {
    color: #07c160;
    background: linear-gradient(145deg, #ffffff, #e8f5e8);
}

/* 二维码图标特定颜色 */
.social-link-wrapper.qrcode-wrapper .social-link:hover {
    color: #333;
    background: linear-gradient(145deg, #ffffff, #f0f0f0);
}

/* 联系表单样式 */
.contact-form {
    padding: 40px;
    background-color: #f8f9fa;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 51, 102, 0.1);
}

.contact-form h3 {
    color: #003366;
    margin-bottom: 15px;
    font-size: 24px;
    font-weight: 700;
}

.contact-form > p {
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
    font-size: 16px;
}

.custom-contact-form .form-group {
    margin-bottom: 20px;
}

.custom-contact-form input,
.custom-contact-form select,
.custom-contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: white;
}

.custom-contact-form input:focus,
.custom-contact-form select:focus,
.custom-contact-form textarea:focus {
    outline: none;
    border-color: #003366;
    box-shadow: 0 0 0 3px rgba(0, 51, 102, 0.1);
}

.custom-contact-form .submit-btn {
    width: 100%;
    background-color: #003366;
    color: white;
    border: none;
    padding: 15px;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.custom-contact-form .submit-btn:hover {
    background-color: #ffcc00;
    color: #003366;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* 3.7 地图区域 */
.map-section {
    padding: 60px 0;
    background-color: #f0f4f8;
}

.section-subtitle {
    text-align: center;
    color: #003366;
    margin-bottom: 40px;
    font-size: 28px;
    font-weight: 700;
    position: relative;
}

.section-subtitle::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background-color: #ffcc00;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.map-container {
    position: relative;
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.map-placeholder {
    width: 100%;
    height: 100%;
    position: relative;
}

.map-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.map-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 51, 102, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.view-map-btn {
    background: rgba(255, 255, 255, 0.9);
    color: #003366;
    border: 2px solid #003366;
    padding: 15px 30px;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
}

.view-map-btn:hover {
    background-color: #003366;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* 3.8 页脚 */
.site-footer {
    background-color: #003366;
    color: white;
    padding: 60px 0 20px;
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: #ffcc00;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-section {
    flex: 1;
    min-width: 250px;
}

.footer-section h3 {
    font-size: 22px;
    margin-bottom: 25px;
    color: #ffcc00;
    font-weight: 600;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: rgba(255, 255, 255, 0.3);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: #ddd;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    padding: 2px 0;
}

.footer-section ul li a:hover {
    color: #ffcc00;
    transform: translateX(5px);
}

.footer-contact p {
    color: #ddd;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: #ffcc00;
    width: 20px;
}

.copyright {
    text-align: center;
    padding-top: 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #aaa;
    font-size: 14px;
    line-height: 1.5;
}

/* 3.9 文章和页面内容 */
.site-main {
    padding: 80px 0;
}

.entry-header {
    margin-bottom: 50px;
    text-align: center;
}

.entry-title {
    color: #003366;
    font-size: 42px;
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.3;
}

.entry-meta {
    color: #666;
    font-size: 15px;
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.entry-content {
    font-size: 18px;
    line-height: 1.8;
    color: #444;
}

.entry-content h2 {
    color: #003366;
    margin: 50px 0 25px;
    font-size: 32px;
    font-weight: 600;
    position: relative;
    padding-bottom: 15px;
}

.entry-content h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: #ffcc00;
}

.entry-content h3 {
    color: #003366;
    margin: 40px 0 20px;
    font-size: 26px;
    font-weight: 600;
}

/* 3.10 侧边栏 */
.sidebar {
    background-color: #f8f9fa;
    padding: 35px;
    border-radius: 12px;
    margin-top: 60px;
    border: 1px solid rgba(0, 51, 102, 0.1);
}

.widget {
    margin-bottom: 40px;
}

.widget:last-child {
    margin-bottom: 0;
}

.widget-title {
    color: #003366;
    margin-bottom: 25px;
    font-size: 22px;
    font-weight: 600;
    border-bottom: 2px solid #ffcc00;
    padding-bottom: 10px;
}

/* 3.11 面包屑导航 */
.breadcrumbs-container {
    background-color: #f0f4f8;
    padding: 20px 0;
    border-bottom: 1px solid #ddd;
}

.breadcrumbs {
    font-size: 15px;
    color: #666;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.breadcrumbs a {
    color: #003366;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumbs a:hover {
    color: #ffcc00;
}

.breadcrumbs .separator {
    color: #999;
    font-size: 12px;
}

.breadcrumbs .current {
    color: #666;
    font-weight: 500;
}

/* 3.12 跳过链接 */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #003366;
    color: white;
    padding: 10px 20px;
    z-index: 9999;
    text-decoration: none;
    transition: top 0.3s ease;
    border-radius: 0 0 4px 0;
    font-weight: 600;
}

.skip-link:focus {
    top: 0;
}

/* ========== 4. 响应式设计 ========== */
/* 4.1 超大桌面端 (≥1400px) */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
    
    .desktop-navigation {
        gap: 40px;
    }
    
    .main-navigation ul {
        gap: 35px;
    }
}

/* 4.2 标准桌面端 (≥1200px) */
@media (min-width: 1200px) {
    .desktop-navigation {
        gap: 35px;
    }
    
    .main-navigation ul {
        gap: 30px;
    }
}

/* 4.3 中等桌面端 (≥992px) */
@media (min-width: 992px) {
    .desktop-navigation {
        display: flex !important;
    }
    
    .mobile-navigation {
        display: none !important;
    }
    
    .mobile-menu-toggle {
        display: none !important;
    }
}

/* 4.4 平板端 (768px - 991px) */
@media (max-width: 991px) and (min-width: 768px) {
    .header-inner {
        height: 70px;
    }
    
    .site-branding .logo {
        height: 70px;
    }
    
    .site-title {
        font-size: 20px;
    }
    
    .desktop-navigation {
        gap: 25px;
    }
    
    .main-navigation ul {
        gap: 20px;
    }
    
    .main-navigation ul li a {
        font-size: 15px;
    }
    
    .language-switcher-dropdown {
        width: 140px;
    }
    
    .hero h2 {
        font-size: 42px;
    }
    
    .section-title {
        font-size: 34px;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .summary-points {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 4.5 移动端 (< 992px) */
@media (max-width: 991px) {
    .desktop-navigation {
        display: none !important;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .mobile-navigation {
        display: block;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #003366;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
        z-index: 999;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .mobile-navigation.active {
        display: block;
        max-height: 500px;
        padding: 20px 0;
        overflow-y: auto;
    }
    
    .header-inner {
        height: 70px;
    }
    
    .site-branding .logo {
        height: 70px;
    }
    
    .site-title {
        font-size: 20px;
    }
    
    .site-description {
        font-size: 12px;
    }
    
    .site-branding .logo-icon {
        font-size: 28px;
    }
    
    .hero {
        padding: 80px 0;
    }
    
    .hero h2 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .cta-button {
        padding: 14px 35px;
        font-size: 16px;
    }
    
    .section-title {
        font-size: 30px;
        margin-bottom: 40px;
    }
    
    .features,
    .about,
    .comparison,
    .news,
    .contact,
    .site-main {
        padding: 70px 0;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .summary-points {
        grid-template-columns: 1fr;
    }
    
    .map-overlay {
        flex-direction: column;
        gap: 15px;
    }
    
    .entry-title {
        font-size: 36px;
    }
}

/* 4.6 小型移动端 (≤ 768px) */
@media (max-width: 768px) {
    .header-inner {
        height: 65px;
    }
    
    .site-branding .logo {
        height: 65px;
        gap: 8px;
    }
    
    .site-title {
        font-size: 18px;
    }
    
    .site-branding .logo-icon {
        font-size: 24px;
    }
    
    .mobile-menu-toggle {
        width: 36px;
        height: 36px;
    }
    
    .menu-toggle-icon {
        width: 20px;
    }
    
    .menu-toggle-icon::before,
    .menu-toggle-icon::after {
        width: 20px;
    }
    
    .hero {
        padding: 70px 0;
    }
    
    .hero h2 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 24px;
    }
    
    .features-grid,
    .news-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .feature-card,
    .news-card {
        padding: 30px 20px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        margin: 30px 0;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .footer-section {
        min-width: 100%;
    }
}

/* 4.7 超小型移动端 (≤ 480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .header-inner {
        height: 60px;
    }
    
    .site-branding .logo {
        height: 60px;
        gap: 6px;
    }
    
    .site-title {
        font-size: 16px;
    }
    
    .site-branding .logo-icon {
        font-size: 20px;
    }
    
    .mobile-menu-toggle {
        width: 32px;
        height: 32px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero h2 {
        font-size: 28px;
    }
    
    .hero p {
        font-size: 15px;
    }
    
    .cta-button {
        padding: 12px 30px;
        font-size: 15px;
    }
    
    .section-title {
        font-size: 26px;
    }
    
    .section-subtitle {
        font-size: 22px;
    }
    
    .about-text h2 {
        font-size: 24px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .entry-title {
        font-size: 30px;
    }
    
    .entry-content {
        font-size: 16px;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* ========== 5. 动画效果 ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.feature-card,
.news-card,
.point {
    animation: fadeInUp 0.6s ease-out;
}

/* ========== 6. 返回顶部按钮 ========== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: #003366;
    color: white;
    border: none;
    border-radius: 4px; /* 改为矩形 */
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: #ffcc00;
    color: #003366;
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

@media (max-width: 768px) {
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
        font-size: 18px;
    }
}

/* ========== 7. 浏览器兼容性 ========== */
@supports (-ms-ime-align: auto) {
    .language-switcher-dropdown select.language-select {
        padding-right: 15px;
    }
    
    .language-switcher-dropdown .select-arrow {
        display: none;
    }
    
    .flex-container {
        display: -ms-flexbox;
    }
}

@-moz-document url-prefix() {
    .language-switcher-dropdown select.language-select {
        padding-right: 35px;
    }
}

/* ========== 8. 无障碍访问支持 ========== */
@media (prefers-contrast: high) {
    .site-header,
    .site-footer {
        background-color: #000066;
    }
    
    .language-switcher-dropdown select.language-select {
        border: 2px solid white;
    }
    
    .language-switcher-dropdown select.language-select:hover {
        border: 2px solid yellow;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .feature-card,
    .news-card,
    .hero-content {
        animation: none;
    }
}

@media (prefers-color-scheme: dark) {
    .language-switcher-dropdown select.language-select {
        background: rgba(0, 0, 0, 0.3);
        border-color: rgba(255, 255, 255, 0.2);
        color: #e0e0e0;
    }
    
    .language-switcher-dropdown select.language-select:hover {
        background: rgba(0, 0, 0, 0.4);
        border-color: #ffcc00;
    }
}

/* ========== 9. 打印样式 ========== */
@media print {
    .site-header {
        position: static;
        box-shadow: none;
    }
    
    .desktop-navigation,
    .mobile-menu-toggle,
    .mobile-navigation,
    .language-switcher-dropdown {
        display: none !important;
    }
    
    .site-footer {
        background-color: white !important;
        color: black !important;
    }
    
    .footer-section h3 {
        color: black !important;
    }
    
    .footer-section ul li a {
        color: black !important;
    }
    
    .back-to-top {
        display: none !important;
    }
}

/* ========== 10. 多语言特定样式 ========== */
body[lang="en"] {
    font-family: 'Segoe UI', Arial, sans-serif;
}

body[lang="zh"] {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

body[lang="ru"] {
    font-family: 'Segoe UI', Arial, sans-serif;
}

body[lang="de"] {
    font-family: 'Segoe UI', Arial, sans-serif;
}

.rtl .language-switcher-dropdown .select-arrow {
    right: auto;
    left: 15px;
}

.rtl .language-switcher-dropdown select.language-select {
    padding: 0 15px 0 40px;
    text-align: right;
}

.rtl .main-navigation ul li a::after {
    left: auto;
    right: 50%;
    transform: translateX(50%);
}

.rtl .main-navigation ul li a:hover::after {
    left: auto;
    right: 50%;
}

.rtl .about-text h2::after,
.rtl .entry-content h2::after,
.rtl .footer-section h3::after {
    left: auto;
    right: 0;
}

.rtl .contact-item {
    flex-direction: row-reverse;
}

.rtl .social-links {
    justify-content: flex-end;
}

.rtl .news-read-more {
    flex-direction: row-reverse;
}

.rtl .view-all-btn {
    flex-direction: row-reverse;
}

.rtl .point {
    flex-direction: row-reverse;
    text-align: right;
}

.rtl .breadcrumbs {
    flex-direction: row-reverse;
}

/* ========== 11. 菜单动画优化 ========== */
.main-navigation ul li.menu-item-has-children {
    position: relative;
}

.main-navigation ul li .sub-menu {
    transition: 
        opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
        visibility 0.3s;
    transform-origin: top center;
}

.main-navigation ul li .sub-menu li {
    transition: background-color 0.2s ease;
}

.main-navigation ul li .sub-menu li:hover {
    background-color: #f8f9fa;
}

.current-menu-item > a {
    position: relative;
    color: #ffcc00 !important;
}

.current-menu-item > a::after {
    width: calc(100% - 24px) !important;
    background-color: #ffcc00 !important;
}

/* ========== 12. 滚动条美化 ========== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
    transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

* {
    scrollbar-width: thin;
    scrollbar-color: #c1c1c1 #f1f1f1;
}

/* ========== 13. 焦点样式 ========== */
*:focus {
    outline: 2px solid #ffcc00;
    outline-offset: 2px;
}

*:focus:not(:focus-visible) {
    outline: none;
}

*:focus-visible {
    outline: 2px solid #ffcc00;
    outline-offset: 2px;
}

/* ========== 14. 性能优化 ========== */
.main-navigation,
.mobile-navigation,
.site-header,
.site-footer {
    will-change: transform, opacity;
    backface-visibility: hidden;
}

.main-navigation ul li .sub-menu,
.feature-card,
.news-card,
.cta-button,
.back-to-top {
    transform: translateZ(0);
}

/* ========== 15. 菜单修复增强 ========== */
.main-navigation ul li.menu-item-has-children {
    position: relative;
}

.main-navigation ul li.menu-item-has-children .sub-menu.sub-menu-right {
    left: auto;
    right: 0;
}

.main-navigation ul li.menu-item-has-children .sub-menu.sub-menu-right::before {
    left: auto;
    right: 20px;
}

.main-navigation ul li .sub-menu .menu-item-has-children > a::after {
    content: '\f054';
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
}

.main-navigation ul li .sub-menu .sub-menu {
    top: -8px;
    left: 100%;
    margin-left: 5px;
}

.main-navigation ul li .sub-menu .sub-menu::before {
    top: 15px;
    left: -6px;
    border-top: 1px solid #e0e0e0;
    border-left: 1px solid #e0e0e0;
    border-right: none;
    border-bottom: none;
}

.mobile-navigation ul li .sub-menu .menu-item-has-children > a::after {
    right: 20px;
    content: '\f078';
}

.mobile-navigation ul li .sub-menu .sub-menu {
    max-height: 0;
    padding-left: 20px;
    margin-left: 10px;
    border-left: 3px solid rgba(255, 204, 0, 0.5);
}

/* ========== 16. 加载动画 ========== */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #003366;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ========== 17. 工具类 ========== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.text-truncate-multiline {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========== 18. 调试辅助 ========== */
.debug-grid {
    background-image: linear-gradient(rgba(0, 0, 0, 0.1) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(0, 0, 0, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
}

.debug-border * {
    border: 1px solid red !important;
}

/* ========== 19. 最终优化 ========== */
.main-navigation ul,
.mobile-navigation ul {
    contain: layout style;
}

.site-header,
.main-navigation ul li .sub-menu {
    isolation: isolate;
}

html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

body {
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== 20. 自定义属性 ========== */
:root {
    --primary-color: #003366;
    --secondary-color: #ffcc00;
    --accent-color: #0055aa;
    --text-color: #333333;
    --light-bg: #f8f9fa;
    --dark-bg: #003366;
    --border-radius: 4px;
    --transition-speed: 0.3s;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.site-header {
    background-color: var(--primary-color);
}

.main-navigation ul li a:hover {
    color: var(--secondary-color);
}

.cta-button {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}

/* ========== 21. 菜单悬停延迟优化 ========== */
@media (min-width: 992px) {
    .main-navigation ul li.menu-item-has-children .sub-menu {
        transition-delay: 0.1s;
    }
    
    .main-navigation ul li.menu-item-has-children:hover .sub-menu {
        transition-delay: 0s;
    }
}

/* ========== 22. 菜单性能最终修复 ========== */
@media (min-width: 992px) {
    .site-header {
        position: relative;
    }
    
    .header-inner {
        position: static;
    }
    
    .main-navigation ul li.menu-item-has-children {
        position: relative;
    }
    
    .main-navigation ul li .sub-menu {
        position: absolute;
        top: calc(100% - 1px);
        left: 0;
        transform: translateY(5px);
        transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    }
    
    .main-navigation ul li:hover .sub-menu {
        transform: translateY(0);
    }
}

/* ========== 23. 子菜单取消滚动条修复 ========== */
/* 完全取消子菜单的滚动条，让所有内容都显示 */
.main-navigation ul li .sub-menu {
    max-height: none !important;
    overflow: visible !important;
    overflow-y: visible !important;
    overflow-x: visible !important;
}

/* 确保子菜单内容不会被截断 */
.main-navigation ul li .sub-menu li a {
    white-space: normal;
    word-break: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
    line-height: 1.4;
    padding: 10px 15px !important;
}

/* 子菜单宽度优化，适应内容 */
.main-navigation ul li .sub-menu {
    width: 240px; /* 稍微增加宽度，适应多行文本 */
    min-height: auto;
}

/* 移除所有滚动条相关样式 */
.main-navigation ul li .sub-menu::-webkit-scrollbar {
    display: none;
}

/* 子菜单项悬停优化 */
.main-navigation ul li .sub-menu li a:hover {
    background-color: #f0f7ff !important;
    color: #003366 !important;
    padding-left: 20px !important;
    transition: all 0.2s ease;
}

/* 子菜单分隔线优化 */
.main-navigation ul li .sub-menu li a {
    border-bottom: 1px solid #f0f0f0;
}

.main-navigation ul li .sub-menu li:last-child a {
    border-bottom: none;
}

/* 子菜单指示器优化 */
.main-navigation ul li .sub-menu li a::before {
    width: 2px;
    background-color: #ffcc00;
    opacity: 0.8;
}

/* 确保子菜单不会被截断或隐藏 */
.main-navigation ul li .sub-menu {
    visibility: hidden;
    opacity: 0;
    transform: translateY(-5px);
}

.main-navigation ul li:hover .sub-menu {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
}

.leikeglobal-service-table {
  width: 100%;
  border-collapse: collapse;
  margin: 25px 0;
  font-size: 14px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
  border-radius: 8px;
  overflow: hidden;
}

.leikeglobal-service-table thead tr {
  background-color: #1a365d;
  color: #ffffff;
  text-align: left;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 13px;
}

.leikeglobal-service-table th,
.leikeglobal-service-table td {
  padding: 14px 16px;
  border: 1px solid #e2e8f0;
  vertical-align: top;
}

.leikeglobal-service-table tbody tr {
  border-bottom: 1px solid #e2e8f0;
  transition: all 0.2s ease;
}

.leikeglobal-service-table tbody tr:nth-of-type(odd) {
  background-color: #f8fafc;
}

.leikeglobal-service-table tbody tr:nth-of-type(even) {
  background-color: #ffffff;
}

.leikeglobal-service-table tbody tr:hover {
  background-color: #edf2f7;
}

.leikeglobal-service-table tbody tr:last-of-type {
  border-bottom: 2px solid #1a365d;
}

.leikeglobal-service-table tfoot tr {
  background-color: #f1f5f9;
  font-size: 13px;
  color: #4a5568;
  font-style: italic;
}

.leikeglobal-service-table tfoot td {
  border-top: 2px solid #cbd5e0;
  padding: 12px 16px;
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
  .leikeglobal-service-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
  
  .leikeglobal-service-table th,
  .leikeglobal-service-table td {
    padding: 10px 12px;
  }
}

/* 主要线路区域底部的按钮 */
.view-all-routes-button {
    display: inline-block;
    background-color: #ffcc00;
    color: #003366;
    padding: 16px 45px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 18px;
    transition: all 0.3s ease;
    border: 2px solid #ffcc00;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.view-all-routes-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: #003366;
    transition: left 0.3s ease;
    z-index: -1;
}

.view-all-routes-button:hover {
    color: #ffcc00;
    border-color: #ffcc00;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* 邮箱信息包装器 */
.email-info-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    width: 100%;
}

.email-text {
    flex: 1;
}

.email-text h4 {
    margin: 0 0 5px 0;
    font-size: 18px;
    font-weight: 600;
    color: #003366;
}

.email-text p {
    margin: 0;
    color: #666;
    line-height: 1.6;
    font-size: 15px;
}

/* 发送电子邮件按钮 */
.send-email-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: #003366;
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 1px solid #003366;
    white-space: nowrap;
    flex-shrink: 0;
    margin-top: 5px;
}

.send-email-btn:hover {
    background-color: #ffcc00;
    color: #003366;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}
/* 响应式调整 */
@media (max-width: 768px) {
    .email-info-wrapper {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .send-email-btn {
        align-self: flex-start;
        margin-top: 0;
    }
}
/* ========== 完成 ========== */