/* === 全局风格微调 (Zephyr 增强) === */
        body {
            /* [修改] 背景改为浅灰，增加卡片层次感 */
            background-color: #f8f9fa; 
            /* [修改] 字体优先使用 Noto Sans SC */
            font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        
        /* 导航栏增强: 毛玻璃效果 */
        .navbar {
            padding-top: 0.55rem;
            padding-bottom: 0.55rem;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 1px 2px rgba(0,0,0,0.05);
            /* Headroom 动画过渡 */
            will-change: transform;
            transition: transform 0.3s ease-in-out;
        }
        /* [新增] Headroom 状态样式 */
        .headroom--pinned {
            transform: translateY(0%); /* 显示 */
        }
        .headroom--unpinned {
            transform: translateY(-100%); /* 隐藏 */
        }
        /* 顶部时取消阴影，显得更平滑 (可选) */
        .headroom--top {
            background: rgba(255, 255, 255, 0.58);
        }
        .headroom--not-top {
            box-shadow: 0 1px 10px rgba(0,0,0,0.1);
            background: rgba(255, 255, 255, 0.95);
        }
        .navbar-brand img {
            height: 42px;
            width: auto;
        }
        
        .nav-link {
            font-weight: 600;
            padding: 0.5rem 1.2rem !important;
            border-radius: 0.5rem;
            transition: all 0.2s;
        }
        
        .nav-link:hover, .nav-link.active {
            color: var(--bs-primary) !important;
            background-color: rgba(var(--bs-primary-rgb), 0.05);
        }
        
        /* 注册按钮 */
        .btn-auth {
            font-weight: 600;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }

        /* === 文章排版优化 === */
        .article-body {
            font-size: 1.1rem;
            line-height: 1.8;
            color: #444;
        }
        
        .article-body p { margin-bottom: 1.5rem; }
        
        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: 0.5rem;
            box-shadow: 0 4px 10px rgba(0,0,0,0.08);
            margin: 1.5rem 0;
            cursor: zoom-in;
        }
        
        .article-body h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--bs-primary);
            margin-top: 2.5rem;
            margin-bottom: 1.25rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid rgba(var(--bs-primary-rgb), 0.1);
        }
        
        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: #333;
        }
        
        .article-body ul, .article-body ol {
            padding-left: 1.2rem;
            margin-bottom: 1.5rem;
        }
        
        .article-body li { margin-bottom: 0.5rem; }
        
        .article-body pre {
            background: #f4f6f8;
            padding: 1.5rem;
            border-radius: 0.5rem;
            border: 1px solid #e1e4e8;
            overflow-x: auto;
        }

        /* 链接悬停 */
        .hover-primary:hover {
            color: var(--bs-primary) !important;
            transition: color 0.2s ease;
        }

        /* === [重构] 扩展字段样式：科技参数卡片风格 (Tech Spec Chips) === */
        /* [新增] 悬浮感容器样式 */
        .hero-meta-group {
            position: relative;
            margin-bottom: -35px; /* 关键：向下偏移，产生重叠悬浮效果 */
            z-index: 20; /* 确保浮在卡片之上 */
        }

        .meta-chip {
            display: inline-flex;
            align-items: center;
            background-color: #fff;
            border: 1px solid #e9ecef;
            border-radius: 12px;
            padding: 8px 16px 8px 8px; /* 左侧padding小一点给图标 */
            transition: all 0.2s ease;
            box-shadow: 0 4px 12px rgba(0,0,0,0.06); /* 增加阴影，增强悬浮感 */
            text-decoration: none !important;
            max-width: 100%; /* 防止溢出 */
        }

        /* 悬停效果 */
        .meta-chip:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border-color: var(--bs-primary);
        }

        /* 图标块 */
        .meta-chip-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-right: 12px;
            flex-shrink: 0;
        }

        /* 不同类型的配色方案 */
        .icon-soft { background-color: rgba(var(--bs-primary-rgb), 0.1); color: var(--bs-primary); }
        .icon-os { background-color: rgba(var(--bs-info-rgb), 0.1); color: var(--bs-info); }
        .icon-web { background-color: rgba(var(--bs-success-rgb), 0.1); color: var(--bs-success); }

        /* 文字内容区 */
        .meta-chip-content {
            display: flex;
            flex-direction: column;
            line-height: 1.25;
            text-align: left;
            min-width: 0; /* Flexbox 文字溢出修复 */
        }

        .meta-label {
            font-size: 11px;
            color: #999;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            font-weight: 600;
            margin-bottom: 2px;
            white-space: nowrap;
        }

        .meta-value {
            font-size: 14px;
            font-weight: 700;
            color: #333;
            /* 长文字自动截断 */
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* 链接类型的特殊 Hover */
        a.meta-chip:hover .meta-value {
            color: var(--bs-primary);
        }

        /* [新增] 文章主卡片样式，配合悬浮标签 */
        .article-main-card {
            padding-top: 60px; /* 给悬浮的标签留出空间 */
        }

        /* === 底部 Footer 专属样式 === */
        .footer-wrapper {
            background-color: #fff;
            border-top: 1px solid #e5e5e5;
            padding-top: 20px;
            margin-top: 4rem;
            width: 100%;
            position: relative;
            overflow: visible; 
            z-index: 10;
        }

        .footer-container {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end; 
            justify-content: space-between;
            position: relative;
            z-index: 2;
        }

        .footer-left {
            padding-bottom: 18px; 
            max-width: 600px;
        }

        .footer-tips-title {
            color: #6c757d;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }

        .footer-tips-desc {
            color: #666;
            font-size: 14px;
            margin-bottom: 25px;
            line-height: 1.6;
        }

        .footer-links { margin-bottom: 20px; }
        .footer-links a {
            color: #555;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            margin-right: 24px;
            transition: color 0.2s;
            position: relative;
        }
        .footer-links a:hover { color: var(--bs-primary); }

        .footer-copyright {
            color: #999;
            font-size: 12px;
        }

        .footer-right {
            position: absolute;
            right: 0;
            bottom: 15px;
            z-index: 1;
            pointer-events: none;
        }
        
        .footer-img {
            max-height: 120px; 
            width: auto;
            display: block;
            margin-bottom: 0; 
            vertical-align: bottom;
        }

        /* === 回到顶部按钮样式 (重构版) === */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            z-index: 1050; /* 确保层级够高 */
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border-radius: 50%;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: var(--bs-primary); /* 使用 Zephyr 主题色 */
            color: #fff;
            text-decoration: none;
            cursor: pointer;
            border: none;
        }

        /* 显示状态 */
        .back-to-top.show {
            opacity: 0.9;
            visibility: visible;
            transform: translateY(0);
        }

        .back-to-top:hover {
            opacity: 1;
            transform: translateY(-3px); /* 悬浮上移 */
            box-shadow: 0 6px 16px rgba(0,0,0,0.25);
            color: #fff;
        }

        /* === 底部导航卡片优化 (精致版) === */
        .nav-card-wrap {
            padding: 1.5rem;
            background: #fff;
            border: 1px solid #eef2f6;
            border-radius: 12px;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            text-decoration: none;
        }
        
        .nav-card-wrap:hover {
            border-color: var(--bs-primary);
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            transform: translateY(-3px);
            z-index: 1;
        }

        .nav-label {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: #999;
            margin-bottom: 0.6rem;
            display: flex;
            align-items: center;
            font-weight: 600;
        }
        
        .nav-card-wrap.next .nav-label {
            justify-content: flex-end;
        }

        /* 强制覆盖 PbootCMS 生成的 a 标签样式 */
        .nav-link-container a { 
            font-weight: 700; 
            color: #2c3e50; 
            text-decoration: none; 
            font-size: 1.05rem;
            display: block; 
            line-height: 1.4;
            transition: color 0.2s;
            /* 增大点击区域覆盖整个卡片 */
        }
        
        /* 针对 PbootCMS 输出 "没有了" 的情况 */
        .nav-link-container {
            font-size: 0.95rem;
            color: #ccc;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .nav-card-wrap:hover .nav-link-container a { 
            color: var(--bs-primary); 
        }

        /* === [新增] 网格背景样式 === */
        .grid-wrapper {
            position: relative;
            background-color: #f5f5f5; /* [修改] 背景色调整 */
            /* overflow: hidden;  防止背景溢出 */
        }

        .grid-background {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            z-index: 0;
            background-image: linear-gradient(to right, #ededed 1px, transparent 1px), linear-gradient(to bottom, #efefef 1px, transparent 1px);
            background-size: 20px 30px;
            -webkit-mask-image: radial-gradient(
                ellipse 70% 60% at 50% 0%,
                #000 60%,
                transparent 100%
            );
            mask-image: radial-gradient(
                ellipse 70% 60% at 50% 0%,
                #000 60%,
                transparent 100%
            );
            pointer-events: none; /* 确保不影响内容点击 */
        }

        /* 移动端适配 */
        @media (max-width: 768px) {
            .footer-container {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .footer-left {
                padding-bottom: 30px;
                width: 100%;
            }
            .footer-links {
                display: flex;
                justify-content: center;
                flex-wrap: wrap;
                gap: 10px;
            }
            .footer-links a { margin: 0 5px; }
            .footer-right { display: none; }
            
            /* 移动端稍微缩小按钮 */
            .back-to-top {
                width: 40px;
                height: 40px;
                bottom: 20px;
                right: 20px;
            }
			
			.footer-wrapper{margin-top: 2.5rem;}

            /* [修改] 扩展字段移动端优化 - 紧凑型展示 */
            .meta-chip {
                display: inline-flex;
                width: auto;
                padding: 6px 10px 6px 8px;
                margin-bottom: 0;
                /* border-radius: 50px; */
                flex-direction: column; /* 垂直排列 */
                align-items: flex-start;
            }
            
            /* [修改] 移动端图标缩小 */
            .meta-chip-icon {
                width: 24px;        
                height: 24px;
                font-size: 12px;     
                margin-right: 8px;
                margin-bottom: 6px; 
                border-radius: 50%; 
            }

            .meta-label {
                font-size: 11px;     /* 缩小标签文字 */
                margin-bottom: 0;
            }

            .meta-value {
                font-size: 12px;    /* 缩小数值文字 */
            }
            
            /* 调整父容器间距 */
            .d-flex.justify-content-center.flex-wrap {
                gap: 8px !important;
                padding: 0 10px;
            }
        }