* { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'Segoe UI', system-ui, 'Inter', sans-serif; background: #f5f5f5; color: #202124; line-height: 1.5; }
        .main-nav { background: rgba(255,255,255,0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 1000; border-bottom: 1px solid #e5e5e5; }
        .nav-content { max-width: 1280px; margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: center; height: 64px; }
  
		
		
/* Logo 样式 - 简洁现代风格 */
.logo {
    font-size: 30px;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #0078d4 0%, #00a4ef 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.5px;
}

.logo::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #0078d4, #00a4ef);
    border-radius: 8px;
    position: relative;
    background-clip: unset;
    -webkit-background-clip: unset;
    color: white;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M12 2L2 7l10 5 10-5-10-5zM2 17l10 5 10-5M2 12l10 5 10-5'/%3E%3C/svg%3E");
    background-size: 20px;
    background-repeat: no-repeat;
    background-position: center;
}

.logo:hover {
    background: linear-gradient(135deg, #005a9e 0%, #0078d4 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}	


		
		
		/* 导航菜单 - 从左到右展开 */
.nav-menu { 
    display: flex; 
    gap: 32px; 
    list-style: none; 
    margin: 0;
    padding: 0;
}

.nav-menu a { 
    text-decoration: none; 
    color: #202124; 
    font-weight: 500; 
    font-size: 15px;
    position: relative;
    padding: 8px 0;
    transition: color 0.3s ease;
    display: inline-block;
}

/* 下划线 - 从左到右 */
.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #0078d4, #00a4ef);
    transition: width 0.3s ease;
    border-radius: 2px;
}

/* 悬停时下划线展开 */
.nav-menu a:hover::after {
    width: 100%;
}

/* 激活状态 */
.nav-menu a.active::after {
    /*width: 100%;*/
}

.nav-menu a:hover { 
    color: #0078d4;
}

.nav-menu a.active { 
    color: #0078d4;
    font-weight: 600;
}
        .nav-right { display: flex; align-items: center; gap: 20px; }
        .dropdown { position: relative; }
        .dropdown > a { display: flex; align-items: center; gap: 6px; }
        .dropdown-icon { font-size: 12px; }
        .dropdown-menu { position: absolute; top: 100%; left: 0; background: white; border-radius: 12px; box-shadow: 0 8px 28px rgba(0,0,0,0.12); min-width: 220px; opacity: 0; visibility: hidden; transition: all 0.2s; z-index: 100; border: 1px solid #e5e5e5; }
        .dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; }
        .dropdown-item > a { display: block; padding: 12px 20px; color: #202124; text-decoration: none; font-size: 14px; }
        .dropdown-item > a:hover { background: #f0f0f0; }
        
        /* 导航栏语言选择器样式 */
        .language-selector {
            position: relative;
        }
        .lang-btn {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: #f0f0f0;
            border: 1px solid #ddd;
            border-radius: 8px;
            cursor: pointer;
            font-size: 14px;
            transition: all 0.2s;
            font-family: inherit;
        }
        .lang-btn:hover {
            background: #e8e8e8;
            border-color: #0078d4;
        }
        .lang-dropdown-menu {
            position: absolute;
            top: 100%;
            right: 0;
            background: white;
            border-radius: 12px;
            box-shadow: 0 8px 28px rgba(0,0,0,0.12);
            min-width: 180px;
            max-height: 400px;
            overflow-y: auto;
            opacity: 0;
            visibility: hidden;
            transition: all 0.2s;
            z-index: 1000;
            border: 1px solid #e5e5e5;
            margin-top: 1px;
        }
        .language-selector:hover .lang-dropdown-menu {
            opacity: 1;
            visibility: visible;
        }
        .lang-option {
            display: block;
            padding: 12px 20px;
            text-decoration: none;
            color: #202124;
            font-size: 14px;
            transition: background 0.2s;
            white-space: nowrap;
        }
        .lang-option:hover {
            background: #f5f5f5;
        }
        .lang-option.active {
            background: #0078d4;
            color: white;
        }
        
        .mobile-menu-btn { display: none; font-size: 24px; cursor: pointer; background: none; border: none; }
        .swiper-container { width: 100%; height: 500px; }
        .swiper-slide { background-size: cover; background-position: center; position: relative; }
        .swiper-slide::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.2); }
        .slide-content { position: absolute; bottom: 30%; left: 10%; color: white; z-index: 10; max-width: 500px; }
        .slide-content h2 { font-size: 48px; font-weight: 600; margin-bottom: 16px; }
        .slide-content p { font-size: 18px; margin-bottom: 24px; }
        .slide-btn { display: inline-block; padding: 12px 28px; background: #0078d4; color: white; text-decoration: none; border-radius: 8px; font-weight: 500; }
        .slide-btn:hover { background: #005a9e; }
        .swiper-button-next, .swiper-button-prev { color: white; }
        .swiper-pagination-bullet { background: white; opacity: 0.6; }
        .swiper-pagination-bullet-active { background: #0078d4; opacity: 1; }
        .section { padding: 80px 24px; max-width: 1280px; margin: 0 auto; }
        .section-header { text-align: center; margin-bottom: 48px; }
        .section-header h2 { font-size: 36px; font-weight: 600; color: #202124; margin-bottom: 12px; }
        .section-header p { color: #5f6368; font-size: 18px; }
        .about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
        .about-image img { width: 100%; border-radius: 16px; }
        .about-content { color: #5f6368; line-height: 1.8; }
        .about-content h3 { font-size: 28px; color: #202124; margin-bottom: 20px; }
        .about-content p { margin-bottom: 20px; }
        .btn-about { display: inline-block; padding: 10px 24px; background: #0078d4; color: white; text-decoration: none; border-radius: 8px; }
        .categories-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 24px; }
        .category-card { background: white; border: 1px solid #e5e5e5; border-radius: 16px; padding: 32px 20px; text-align: center; text-decoration: none; transition: all 0.2s; }
        .category-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.1); border-color: #0078d4; }
        .category-icon { width: 180px; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; background: #f0f7ff; border-radius: 20px; overflow: hidden; }
        .category-image { width: 100%; height: 100%; object-fit: cover; }
        .category-name { font-size: 18px; font-weight: 600; color: #202124; margin-bottom: 8px; }
        .category-count { font-size: 13px; color: #5f6368; }
        .features-section { background: #f8f9fa; }
        .features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
        .feature-card { background: white; border-radius: 16px; padding: 32px 24px; text-align: center; border: 1px solid #e5e5e5; }
        .feature-card i { font-size: 40px; color: #0078d4; margin-bottom: 20px; }
        .feature-card h3 { font-size: 20px; font-weight: 600; margin-bottom: 12px; }
        .feature-card p { color: #5f6368; }
        .news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
        .news-column { display: flex; flex-direction: column; gap: 20px; }
        .news-item { padding: 16px 0; border-bottom: 1px solid #e5e5e5; }
        .news-title a { font-size: 16px; font-weight: 500; color: #202124; text-decoration: none; }
        .news-title a:hover { color: #0078d4; }
        .news-date { font-size: 12px; color: #5f6368; margin-top: 8px; }
        .news-more { text-align: center; margin-top: 40px; }
        .btn-more { display: inline-block; padding: 12px 32px; background: white; border: 1px solid #0078d4; color: #0078d4; text-decoration: none; border-radius: 8px; font-weight: 500; }
        .btn-more:hover { background: #0078d4; color: white; }
        .footer { background: #1a1a1a; color: #e5e5e5; padding: 60px 24px 30px; margin-top: 60px; }
        .footer-grid { max-width: 1280px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 48px; }
        .footer-col h3 { font-size: 18px; font-weight: 600; margin-bottom: 20px; color: white; }
        .footer-col p { color: #aaa; line-height: 1.6; margin-bottom: 12px; }
        .footer-col ul { list-style: none; }
        .footer-col ul li { margin-bottom: 12px; }
        .footer-col ul li a { color: #aaa; text-decoration: none; transition: color 0.2s; }
        .footer-col ul li a:hover { color: #0078d4; }
        .footer-col ul li i { width: 24px; margin-right: 8px; }
        .social-icons { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 15px; }
        .social-icon { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; transition: all 0.3s; text-decoration: none; }
        .social-icon:hover { transform: translateY(-3px); opacity: 0.9; }
        .footer-bottom { text-align: center; padding-top: 30px; margin-top: 30px; border-top: 1px solid #333; color: #888; font-size: 13px; }
        
        /* 语言切换按钮 */
        .lang-toggle-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #0078d4;
            color: white;
            padding: 8px 20px;
            border-radius: 30px;
            cursor: pointer;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 15px;
            transition: all 0.3s;
            border: none;
        }
        .lang-toggle-btn:hover {
            background: #005a9e;
            transform: translateY(-2px);
        }
.footer-languages {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid #333;
    text-align: center;
    /* display: none; */  /* 删除或注释这行 */
}

.lang-links {
    display: none;  /* 只隐藏链接列表，保留按钮 */
}
        .lang-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 15px;
        }
        .lang-link {
            display: inline-block;
            padding: 6px 14px;
            background: rgba(255,255,255,0.1);
            border-radius: 25px;
            color: #aaa;
            text-decoration: none;
            font-size: 13px;
            transition: all 0.2s;
        }
        .lang-link:hover {
            background: #0078d4;
            color: white;
        }
        .lang-link.active {
            background: #0078d4;
            color: white;
        }
        
        @media (max-width: 768px) {
            .mobile-menu-btn { display: block; }
            .nav-menu { position: fixed; top: 64px; left: -100%; width: 100%; height: calc(100vh - 64px); background: white; flex-direction: column; padding: 24px; gap: 20px; transition: left 0.3s; z-index: 999; }
            .nav-menu.active { left: 0; }
            .dropdown-menu { position: static; opacity: 1; visibility: visible; box-shadow: none; display: none; margin-top: 8px; padding-left: 20px; }
            .dropdown.active .dropdown-menu { display: block; }
            .slide-content h2 { font-size: 28px; }
            .slide-content p { font-size: 14px; }
            .section-header h2 { font-size: 28px; }
            .about-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; text-align: center; }
            .footer-col ul li i { margin-right: 0; margin-left: 8px; }
            .lang-links { gap: 8px; }
            .lang-link { padding: 4px 10px; font-size: 11px; }
            .lang-dropdown-menu {
                position: fixed;
                top: auto;
                bottom: 0;
                left: 0;
                right: 0;
                width: 100%;
                border-radius: 20px 20px 0 0;
                max-height: 60vh;
            }
            .language-selector:hover .lang-dropdown-menu {
                opacity: 0;
                visibility: hidden;
            }
            .lang-dropdown-menu.show {
                opacity: 1 !important;
                visibility: visible !important;
            }
        }
        [dir="rtl"] .slide-content { left: auto; right: 10%; text-align: right; }
        [dir="rtl"] .dropdown-menu { left: auto; right: 0; }
        [dir="rtl"] .footer-col ul li i { margin-right: 0; margin-left: 8px; }