:root {
            --primary: #1D7BFF;
            --accent: rgb(189, 147, 249);
            --bg-dark: #0B111E;
            --bg-card: rgba(20, 30, 54, 0.7);
            --text-light: #F3F4F6;
            --text-muted: #9CA3AF;
            --border-color: rgba(29, 123, 255, 0.2);
            --glacier-blue: #E0F2FE;
            --deep-sea: #030712;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.6;
        }
        a { color: inherit; text-decoration: none; transition: all 0.3s ease; }

        
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(11, 17, 30, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 16px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo { display: inline-flex; align-items: center; gap: 12px; }
        .logo img { height: 40px; }
        .logo span { font-size: 20px; font-weight: 800; color: var(--glacier-blue); }
        .nav-menu { display: flex; gap: 28px; }
        .menu-toggle { display: none; background: none; border: none; color: var(--text-light); font-size: 24px; }

        
        .drawer { position: fixed; top: 0; left: -300px; width: 300px; height: 100%; background: var(--bg-dark); z-index: 200; transition: left 0.4s ease; border-right: 1px solid var(--border-color); padding: 30px 24px; display: flex; flex-direction: column; gap: 40px; }
        .drawer.open { left: 0; }
        .drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.7); z-index: 150; display: none; }
        .drawer-overlay.show { display: block; }

        
        .article-banner {
            padding: 140px 24px 40px;
            background: var(--deep-sea);
        }
        .banner-inner {
            max-width: 900px;
            margin: 0 auto;
        }
        .breadcrumbs {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .breadcrumbs a { color: var(--primary); }

        
        .article-layout {
            max-width: 900px;
            margin: 0 auto 100px;
            padding: 0 24px;
        }
        .article-header {
            margin-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            padding-bottom: 30px;
        }
        .article-title {
            font-size: clamp(24px, 4vw, 40px);
            font-weight: 800;
            color: #FFF;
            line-height: 1.3;
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            gap: 20px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .article-meta span { display: inline-flex; align-items: center; gap: 6px; }

        .article-content {
            font-size: 17px;
            color: #D1D5DB;
            line-height: 1.8;
            margin-bottom: 60px;
        }
        .article-content p {
            margin-bottom: 24px;
        }
        .article-content h2, .article-content h3 {
            color: #FFF;
            margin: 40px 0 20px;
        }

        .article-tags-links {
            display: flex;
            gap: 10px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }
        .article-tags-links a {
            background: rgba(29, 123, 255, 0.1);
            color: var(--glacier-blue);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 13px;
            border: 1px solid var(--border-color);
        }

        
        .adjacent-articles {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
            padding: 30px 0;
            margin-bottom: 60px;
        }
        .adjacent-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 8px;
        }
        .adj-label { font-size: 12px; color: var(--text-muted); margin-bottom: 6px; }
        .adj-title { font-size: 15px; font-weight: 600; color: #FFF; }

        
        .related-section { margin-bottom: 100px; }
        .related-title { font-size: 24px; color: #FFF; margin-bottom: 30px; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }
        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
        }
        .related-card h4 { font-size: 16px; margin-bottom: 8px; color: #FFF; }
        .related-card p { font-size: 13px; color: var(--text-muted); }

        
        footer {
            background: var(--deep-sea);
            border-top: 1px solid var(--border-color);
            padding: 80px 24px 30px;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 60px;
        }
        .footer-brand { display: flex; flex-direction: column; gap: 20px; }
        .footer-brand p { color: var(--text-muted); font-size: 14px; max-width: 320px; }
        .footer-links h4 { color: #FFF; font-size: 16px; margin-bottom: 20px; }
        .footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
        .footer-links a { color: var(--text-muted); font-size: 14px; }
        .footer-links a:hover { color: var(--primary); }
        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.05);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 16px;
        }

        @media (max-width: 768px) {
            .nav-menu { display: none; }
            .menu-toggle { display: block; }
            .adjacent-articles { grid-template-columns: 1fr; }
            .footer-container { grid-template-columns: 1fr; }
        }