:root {
            --primary: #514E4D;
            --accent: #4A90E2; 
        }
        
        body {
            font-family: 'Inter', sans-serif;
            -webkit-font-smoothing: antialiased;
            color: #1f2937;
        }

/* --- 导航栏高级交互样式 --- */
        .navbar {

        }

        .navbar .nav-item { color: #ffffff; }
        .navbar .logo-text { color: #ffffff; }
        .navbar .nav-cta-btn { 
            background-color: #ffffff; 
            color: var(--accent); 
        }

        /* 滚动后的状态（白底灰字） */
        .navbar.scrolled {
            background-color: rgba(255, 255, 255, 1);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            padding-top: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid transparent;
        }

        .navbar.scrolled .nav-item { color: #4b5563; }
        .navbar.scrolled .nav-item:hover { color: var(--accent); }
        .navbar.scrolled .logo-text { color: #111827; }
        .navbar.scrolled .logo-subtitle { color: #6b7280; }
        .navbar.scrolled .nav-cta-btn { 
            background-color: var(--accent); 
            color: #ffffff; 
        }

        /* --- 移动端菜单样式 --- */
        .mobile-menu {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(10px);
            z-index: 9999;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            transform: translateY(-20px);
        }

        .mobile-menu.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mobile-menu-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100%;
            padding: 2rem;
            overflow-y: auto;
        }

        .mobile-nav-item {
            display: block;
            font-size: 1.5rem;
            font-weight: 500;
            color: #1f2937;
            text-decoration: none;
            padding: 1rem 0;
            width: 100%;
            text-align: center;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .mobile-nav-item:hover {
            color: var(--accent);
            transform: translateX(5px);
        }

        .mobile-menu-close {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #4b5563;
            cursor: pointer;
            z-index: 10000;
            transition: color 0.3s ease;
        }

        .mobile-menu-close:hover {
            color: var(--accent);
        }

        .mobile-cta-btn {
            margin-top: 2rem;
            background-color: var(--accent);
            color: white;
            padding: 1rem 3rem;
            border-radius: 9999px;
            font-weight: 600;
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(74, 144, 226, 0.2);
        }

        .mobile-cta-btn:hover {
            background-color: #3a7bc8;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(74, 144, 226, 0.3);
        }

        /* 菜单按钮样式 */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            z-index: 100;
            padding: 0.5rem;
        }

        @media (max-width: 1023px) {
            .menu-toggle {
                display: block;
            }
            
            .navbar .hidden.lg\\:flex {
                display: none !important;
            }
        }

        .menu-toggle-icon {
            font-size: 1.5rem;
            color: inherit;
            transition: color 0.3s ease;
        }

        .navbar.scrolled .menu-toggle-icon {
            color: #4b5563;
        }


        /* --- 模块通用大气样式 --- */
        .section-padding {
            padding-top: 6rem;
            padding-bottom: 6rem;
        }
        
        .section-header {
            margin-bottom: 4rem;
            text-align: center;
        }
        
        .section-tag {
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.15em;
            font-weight: 600;
            font-size: 0.875rem;
            display: block;
            margin-bottom: 1rem;
        }
        
        .section-title {
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1.2;
            color: #111827;
        }

        /* --- Swiper 全屏设定 --- */
        .fullscreen-swiper {
            height: 100vh;
            width: 100%;
        }
        
        .slide-overlay {
            background: linear-gradient(to right, rgba(0,0,0,0.7), rgba(0,0,0,0.3));
            position: absolute;
            inset: 0;
            z-index: 1;
        }
        
        .slide-content {
            position: relative;
            z-index: 10;
        }

        /* --- 动画类 --- */
        .reveal-up {
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
        }
        
        .reveal-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* --- 特殊组件样式 --- */
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
        }

        .timeline-line {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            top: 0;
            bottom: 0;
            width: 2px;
            background-color: #e5e7eb;
        }
		/* === 新增：语言切换按钮适配 === */
/* 默认状态下继承 navbar .nav-item 的颜色 (白色) */
#lang-btn {
    color: #ffffff; /* 默认继承父级颜色 */
}

/* 滚动后状态：强制变为深色，并支持 hover 变色 */
.navbar.scrolled #lang-btn {
    color: #4b5563;
}
.navbar.scrolled #lang-btn:hover {
    color: var(--accent);
}

/* 移动端菜单层级修复，防止下拉被遮挡（虽然移动端用的是独立布局，但以防万一） */
#lang-dropdown {
    box-shadow: 0 10px 40px -10px rgba(0,0,0,0.15);
}

        /* === about 特定样式 === */
        .page-header {
            height: 60vh;
            background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://images.unsplash.com/photo-1573164713714-d95e436ab8d6?q=80&w=2938&auto=format&fit=crop');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: white;
            position: relative;
        }

        .timeline-item {
            position: relative;
            padding-left: 3rem;
            padding-bottom: 3rem;
            border-left: 2px solid #e5e7eb;
        }
        .timeline-item:last-child {
            border-left: 2px solid transparent;
        }
        .timeline-dot {
            position: absolute;
            left: -9px;
            top: 0;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--accent);
            border: 4px solid #fff;
            box-shadow: 0 0 0 1px #e5e7eb;
        }
         /* === contact 特定样式 === */
        .contact-card {
            transition: all 0.3s ease;
        }
        .contact-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }

        /* --- FAQ 样式 --- */
        .faq-item {
            border-bottom: 1px solid #e5e7eb;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            cursor: pointer;
        }
        .faq-question i {
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-item.active .faq-question span {
            color: var(--accent);
        }
        
         /* === 产品页特定样式 === */

        .filter-btn {
            border: 1px solid #e5e7eb;
            background: white;
            color: #4b5563;
            transition: all 0.3s ease;
        }
        .filter-btn:hover, .filter-btn.active {
            background-color: var(--accent);
            color: white;
            border-color: var(--accent);
            box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
        }

        .product-card {
            transition: all 0.3s ease;
        }
        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.08);
        }
        .product-card .img-container {
            overflow: hidden;
        }
        .product-card:hover img {
            transform: scale(1.05);
        }
        
        /* --- 详情页专用 --- */
        .breadcrumb { color: #9ca3af; font-size: 0.875rem; }
        .breadcrumb a:hover { color: var(--accent); }
        
        .thumb-active {
            border: 2px solid var(--accent) !important;
        }
        
        .spec-row {
            display: flex;
            padding: 0.75rem 0;
            border-bottom: 1px solid #f3f4f6;
        }
        .spec-label { width: 120px; color: #6b7280; font-weight: 500; }
        .spec-value { flex: 1; color: #111827; }

        .sticky-sidebar {
            position: sticky;
            top: 100px;
        }
        .product_content p img {
    display: block;
}
        .product_content img {
    display: block;
}
.product_content p {
    margin: 0;
    padding: 0;
}
        
        
         /* --- 新聞卡片 --- */
        .news-card { transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
        .news-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); }
        .news-image { overflow: hidden; }
        .news-image img { transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); }
        .news-card:hover .news-image img { transform: scale(1.1); }

        .page-hero {
            height: 40vh;
            background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://images.unsplash.com/photo-1495020689067-958852a7765e?q=80&w=2938&auto=format&fit=crop');
            background-size: cover;
            background-position: center;
        }

        .category-tag {
            background: rgba(74, 144, 226, 0.1);
            color: var(--accent);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        
/* --- 文章內容樣式 --- */
        .article-content p {
            margin-bottom: 1.5rem;
            line-height: 1.8;
            color: #4b5563;
        }
        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #111827;
            margin: 2rem 0 1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-content h2::before {
            content: '';
            width: 4px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
        }

        /* --- 側邊欄組件 --- */
        .sidebar-widget {
            background: white;
            border-radius: 1.25rem;
            padding: 1.5rem;
            border: 1px solid #edf2f7;
            margin-bottom: 2rem;
        }
        .widget-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
            color: #1a202c;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        

        /* --- 分頁樣式 --- */
        .pagination-item {
            width: 45px;
            height: 45px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 1px solid #e5e7eb;
            color: #4b5563;
        }
        .pagination-item:hover:not(.active):not(.disabled) {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(74, 144, 226, 0.05);
        }
        .pagination-item.active {
            background: var(--accent);
            color: white;
            border-color: var(--accent);
            box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
        }
        .pagination-item.disabled {
            opacity: 0.5;
            cursor: not-allowed;
            background: #f9fafb;
        }