/* 字体导入 - 使用粗犷的无衬线体 */
        @import url('https://fonts.googleapis.com/css2?family=Black+Ops+One&family=Orbitron:wght@400;700&family=Roboto+Condensed:wght@400;700&display=swap');
        
        :root {
            --metal-gray: #333333;
            --metal-gray-light: #4d4d4d;
            --metal-gray-dark: #1a1a1a;
            --safety-orange: #FF7900;
            --safety-orange-light: #FF9E4F;
            --safety-orange-dark: #CC6100;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Roboto Condensed', sans-serif;
            background-color: var(--metal-gray);
            color: white;
            line-height: 1.8;
        }
        
        /* 螺栓装饰边框 */
        .bolt-border {
            position: relative;
            border: 3px solid var(--safety-orange);
            padding: 25px;
            margin: 20px 0;
        }
        
        .bolt-border::before, .bolt-border::after {
            content: "";
            position: absolute;
            width: 25px;
            height: 25px;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><circle cx="12.5" cy="12.5" r="10" fill="%23FF7900"/><polygon points="12.5,2.5 15,10 22.5,12.5 15,15 12.5,22.5 10,15 2.5,12.5 10,10" fill="%23333333"/></svg>');
            background-size: contain;
        }
        
        .bolt-border::before {
            top: -12px;
            left: -12px;
        }
        
        .bolt-border::after {
            bottom: -12px;
            right: -12px;
        }
        
        /* 导航栏 */
        header {
            background-color: var(--metal-gray-dark);
            padding: 1rem;
            border-bottom: 3px solid var(--safety-orange);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-family: 'Black Ops One', cursive;
            font-size: 2rem;
            color: var(--safety-orange);
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 2rem;
        }
        
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: bold;
            text-transform: uppercase;
            transition: color 0.3s;
        }
        
        .nav-links a:hover {
            color: var(--safety-orange);
        }
        
        /* 面包屑导航 */
        .breadcrumb {
            padding: 1.5rem 0;
            font-size: 0.9rem;
        }
        
        .breadcrumb a {
            color: var(--safety-orange-light);
            text-decoration: none;
        }
        
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        
        .breadcrumb span {
            margin: 0 0.5rem;
            color: #999;
        }
        
        /* 主要内容区域 */
        .container {
            max-width: 1000px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        
        /* 文章头部 */
        .article-header {
            margin: 3rem 0;
            text-align: center;
        }
        
        .article-title {
            font-family: 'Orbitron', sans-serif;
            color: var(--safety-orange);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.3;
        }
        
        .article-meta {
            display: flex;
            justify-content: center;
            align-items: center;
            margin-bottom: 2rem;
            color: #aaa;
            font-size: 0.9rem;
        }
        
        .meta-item {
            display: flex;
            align-items: center;
            margin: 0 1rem;
        }
        
        .meta-item i {
            margin-right: 0.5rem;
            color: var(--safety-orange);
        }
        
        /* 文章特色图片 */
        .featured-image {
            width: 100%;
            height: 500px;
            background-color: var(--metal-gray-dark);
            margin: 2rem 0;
            position: relative;
            overflow: hidden;
        }
        
        .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        /* 文章内容 */
        .article-content {
            font-size: 1.1rem;
            margin: 3rem 0;
        }
        
        .article-content p {
            margin-bottom: 1.8rem;
        }
        
        .article-content h2 {
            font-family: 'Orbitron', sans-serif;
            color: var(--safety-orange);
            font-size: 2rem;
            margin: 3rem 0 1.5rem;
            border-left: 5px solid var(--safety-orange);
            padding-left: 1rem;
        }
        
        .article-content h3 {
            font-family: 'Orbitron', sans-serif;
            color: var(--safety-orange-light);
            font-size: 1.5rem;
            margin: 2.5rem 0 1.2rem;
        }
        
        .article-content img {
            max-width: 100%;
            height: auto;
            margin: 2rem 0;
            border: 3px solid var(--metal-gray-light);
        }
        
        .article-content blockquote {
            border-left: 5px solid var(--safety-orange);
            padding: 1.5rem;
            background-color: var(--metal-gray-light);
            margin: 2rem 0;
            font-style: italic;
        }
        
        /* 技术参数表格 */
        .spec-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
        }
        
        .spec-table th, .spec-table td {
            border: 1px solid #555;
            padding: 1rem;
            text-align: left;
        }
        
        .spec-table th {
            background-color: var(--metal-gray-light);
            color: var(--safety-orange);
            font-weight: bold;
        }
        
        .spec-table tr:nth-child(even) {
            background-color: var(--metal-gray-light);
        }
        
        /* 图片画廊 */
        .gallery {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        
        .gallery-item {
            height: 250px;
            background-color: var(--metal-gray-dark);
            overflow: hidden;
            position: relative;
        }
        
        .gallery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .gallery-item:hover img {
            transform: scale(1.1);
        }
        
        /* 标签和分享 */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            margin: 2rem 0;
        }
        
        .tag {
            background-color: var(--metal-gray-light);
            color: var(--safety-orange);
            padding: 0.5rem 1rem;
            margin: 0 0.5rem 0.5rem 0;
            border-radius: 3px;
            font-size: 0.9rem;
        }
        
        .social-share {
            display: flex;
            margin: 2rem 0;
        }
        
        .share-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: var(--metal-gray-light);
            color: white;
            border-radius: 50%;
            margin-right: 1rem;
            transition: background-color 0.3s;
        }
        
        .share-btn:hover {
            background-color: var(--safety-orange);
        }
        
        /* 相关文章 */
        .related-articles {
            margin: 5rem 0;
        }
        
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }
        
        .related-card {
            background-color: var(--metal-gray-light);
            transition: transform 0.3s;
        }
        
        .related-card:hover {
            transform: translateY(-5px);
        }
        
        .related-image {
            height: 200px;
            background-color: var(--metal-gray-dark);
            overflow: hidden;
        }
        
        .related-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .related-card:hover .related-image img {
            transform: scale(1.1);
        }
        
        .related-content {
            padding: 1.5rem;
        }
        
        .related-title {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        
        .related-date {
            color: #aaa;
            font-size: 0.9rem;
        }
        
        /* 页脚 */
        footer {
            background-color: var(--metal-gray-dark);
            padding: 3rem 2rem;
            text-align: center;
            border-top: 3px solid var(--safety-orange);
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            list-style: none;
            margin: 1.5rem 0;
        }
        
        .footer-links li {
            margin: 0 1.5rem;
        }
        
        .footer-links a {
            color: white;
            text-decoration: none;
            font-weight: bold;
        }
        
        .footer-links a:hover {
            color: var(--safety-orange);
        }
        
        .copyright {
            margin-top: 1.5rem;
            color: #999;
        }