:root {
            --primary: #1D7BFF;
            --primary-glow: rgba(29, 123, 255, 0.15);
            --ocean-ink: #0A1128;
            --ocean-light: #1C2541;
            --glacier-blue: #48CAE4;
            --silver-white: #F4F6F9;
            --slate-gray: rgb(75,85,99);
            --slate-light: #E2E8F0;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --glass-bg: rgba(255, 255, 255, 0.85);
            --glass-border: rgba(226, 232, 240, 0.8);
            --shadow: 0 10px 30px -10px rgba(0,0,0,0.08);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background-color: var(--silver-white); color: var(--text-main); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }

        header { background: var(--glass-bg); backdrop-filter: blur(12px); border-bottom: 1px solid var(--glass-border); position: sticky; top: 0; z-index: 100; }
        .header-container { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 15px 20px; }
        .logo { display: inline-flex; align-items: center; gap: 12px; }
        .logo img { height: 40px; width: auto; max-width: 160px; object-fit: contain; }
        .logo span { font-size: 18px; font-weight: 800; color: var(--ocean-ink); }
        .nav-desktop { display: flex; align-items: center; gap: 32px; }
        .nav-desktop a { font-size: 15px; font-weight: 500; color: var(--slate-gray); }
        .menu-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--ocean-ink); cursor: pointer; }

        .drawer-backdrop { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgba(10, 17, 40, 0.6); backdrop-filter: blur(4px); z-index: 999; opacity: 0; pointer-events: none; transition: var(--transition); }
        .drawer { position: fixed; top: 0; left: -320px; width: 300px; height: 100vh; background: #fff; z-index: 1000; box-shadow: 5px 0 30px rgba(0,0,0,0.15); display: flex; flex-direction: column; transition: var(--transition); }
        .drawer.active { left: 0; }
        .drawer-backdrop.active { opacity: 1; pointer-events: auto; }
        .drawer-header { padding: 24px; border-bottom: 1px solid var(--slate-light); display: flex; justify-content: space-between; align-items: center; }
        .drawer-close { background: none; border: none; font-size: 28px; color: var(--text-muted); cursor: pointer; }
        .drawer-nav { padding: 24px; display: flex; flex-direction: column; gap: 20px; overflow-y: auto; flex: 1; }
        .drawer-nav a { font-size: 16px; font-weight: 600; color: var(--text-main); padding: 8px 12px; }

        
        .article-container { max-width: 840px; margin: 40px auto; padding: 0 20px; }
        .article-wrapper { background: #fff; border-radius: 16px; padding: 48px; border: 1px solid var(--glass-border); box-shadow: var(--shadow); }
        
        .article-crumbs { font-size: 14px; color: var(--text-muted); margin-bottom: 24px; }
        .article-crumbs a { color: var(--primary); }

        .article-header h1 { font-size: 32px; font-weight: 800; color: var(--ocean-ink); line-height: 1.3; margin-bottom: 20px; }
        .article-meta-info { display: flex; flex-wrap: wrap; gap: 16px; font-size: 13px; color: var(--text-muted); border-bottom: 1px solid var(--slate-light); padding-bottom: 24px; margin-bottom: 32px; }
        
        .article-content { font-size: 16px; color: #334155; line-height: 1.8; }
        .article-content p { margin-bottom: 24px; }
        .article-content img { max-width: 100%; height: auto; border-radius: 8px; margin: 24px 0; }

        .article-tags-wrapper { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--slate-light); display: flex; flex-wrap: wrap; gap: 8px; }
        .tag-btn { background: var(--silver-white); border: 1px solid var(--slate-light); font-size: 13px; padding: 6px 12px; border-radius: 6px; }
        .tag-btn:hover { border-color: var(--primary); color: var(--primary); }

        .prev-next-links { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--slate-light); }
        .link-nav-box { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-muted); }
        .link-nav-box a { font-size: 15px; font-weight: 600; color: var(--ocean-ink); }
        .link-nav-box a:hover { color: var(--primary); }

        
        .related-section { margin-top: 60px; }
        .related-section h3 { font-size: 20px; font-weight: 700; color: var(--ocean-ink); margin-bottom: 24px; }
        .related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
        
        
        .related-card { background: #fff; border-radius: 12px; overflow: hidden; border: 1px solid var(--glass-border); display: flex; flex-direction: column; transition: var(--transition); }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary); }
        .related-card img { width: 100%; height: 160px; object-fit: cover; }
        .related-body { padding: 16px; flex: 1; display: flex; flex-direction: column; }
        .related-title { font-size: 15px; font-weight: 700; color: var(--text-main); margin-bottom: 8px; line-height: 1.4; }
        .related-meta { font-size: 11px; color: var(--text-muted); display: flex; justify-content: space-between; margin-top: auto; padding-top: 10px; border-top: 1px solid rgba(0,0,0,0.05); }

        footer { background: var(--ocean-ink); color: #94A3B8; font-size: 14px; border-top: 1px solid var(--ocean-light); }
        .footer-top { max-width: 1200px; margin: 0 auto; padding: 60px 20px; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 40px; }
        .footer-col h3 { font-size: 16px; color: #fff; font-weight: 700; margin-bottom: 20px; }
        .footer-col ul { list-style: none; }
        .footer-col ul li { margin-bottom: 12px; }
        .footer-col ul li a:hover { color: #fff; }
        .footer-brand p { margin-top: 15px; font-size: 13px; line-height: 1.6; }
        .footer-brand .logo span { color: #fff; }
        .footer-bottom { border-top: 1px solid var(--ocean-light); padding: 30px 20px; text-align: center; }

        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .menu-toggle { display: block; }
            .article-wrapper { padding: 24px; }
            .prev-next-links { grid-template-columns: 1fr; }
        }