:root {
            --primary: rgb(0,122,255);
            --primary-hover: #0056b3;
            --glacier-blue: #1D7BFF;
            --silver-white: #F8FAFC;
            --deep-ink: #0F172A;
            --border-color: #E2E8F0;
            --text-dark: #1E293B;
            --text-muted: #64748B;
            --glass-bg: rgba(255, 255, 255, 0.85);
            --glass-border: rgba(29, 123, 255, 0.15);
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
            --shadow-md: 0 10px 25px rgba(29, 123, 255, 0.08);
            --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.1);
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-dark); background-color: var(--silver-white); line-height: 1.6; overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: all 0.3s ease; }
        img { max-width: 100%; height: auto; }

        
        .header {
            position: fixed; top: 0; left: 0; width: 100%; height: 70px;
            background: var(--glass-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--glass-border); z-index: 100;
            display: flex; align-items: center; justify-content: space-between; padding: 0 40px; box-shadow: var(--shadow-sm);
        }
        .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
        .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
        .logo span { display: inline-block; font-size: 20px; font-weight: 800; line-height: 1; color: var(--deep-ink); white-space: nowrap; letter-spacing: -0.5px; }
        .nav-menu { display: flex; align-items: center; gap: 32px; }
        .nav-menu a { font-size: 15px; font-weight: 500; color: var(--text-dark); }
        .nav-menu a:hover, .nav-menu a.active { color: var(--primary); }
        .menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
        .menu-toggle span { display: block; width: 24px; height: 2px; background-color: var(--deep-ink); margin: 5px 0; transition: 0.3s; }

        
        .drawer-overlay {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(15, 23, 42, 0.6); backdrop-filter: blur(4px); z-index: 998; display: none; opacity: 0; transition: opacity 0.3s ease;
        }
        .drawer-overlay.active { display: block; opacity: 1; }
        .drawer {
            position: fixed; top: 0; left: -320px; width: 300px; height: 100%; background: var(--deep-ink); color: #fff; z-index: 999;
            transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1); padding: 30px 24px; display: flex; flex-direction: column; box-shadow: var(--shadow-lg);
        }
        .drawer.active { left: 0; }
        .drawer-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 40px; }
        .drawer-logo { display: flex; align-items: center; gap: 10px; }
        .drawer-logo img { height: 36px; }
        .drawer-logo span { font-size: 18px; font-weight: 700; color: #fff; }
        .drawer-close { background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; }
        .drawer-nav { display: flex; flex-direction: column; gap: 20px; }
        .drawer-nav a { font-size: 16px; color: rgba(255, 255, 255, 0.8); padding: 10px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
        .drawer-nav a:hover { color: var(--primary); padding-left: 8px; }

        
        .meta-nav {
            background: var(--silver-white);
            padding: 100px 40px 20px;
            max-width: 900px;
            margin: 0 auto;
        }

        .breadcrumbs {
            font-size: 14px;
            color: var(--text-muted);
        }

        .breadcrumbs a {
            color: var(--glacier-blue);
        }

        
        .article-container {
            max-width: 900px;
            margin: 0 auto 80px;
            padding: 0 20px;
        }

        .article-main {
            background: #fff;
            border-radius: 24px;
            border: 1px solid var(--border-color);
            padding: 48px;
            box-shadow: var(--shadow-sm);
        }

        .article-header {
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 30px;
            margin-bottom: 40px;
        }

        .article-title-detail {
            font-size: 32px;
            font-weight: 800;
            color: var(--deep-ink);
            line-height: 1.3;
            margin-bottom: 24px;
        }

        .article-meta-detail {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .article-content-body {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            margin-bottom: 40px;
        }

        .article-content-body p {
            margin-bottom: 24px;
        }

        .article-content-body h2, .article-content-body h3 {
            color: var(--deep-ink);
            margin: 40px 0 20px;
            font-weight: 850;
        }

        .article-content-body img {
            border-radius: 12px;
            margin: 20px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-footer-meta {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .tags-list-detail {
            font-size: 14px;
            color: var(--glacier-blue);
            font-weight: 600;
        }

        
        .prev-next-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 40px;
        }

        .prev-next-card {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .prev-next-card:hover {
            border-color: var(--glacier-blue);
        }

        .prev-next-card .label {
            font-size: 12px;
            color: var(--text-muted);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .prev-next-card a {
            font-size: 15px;
            font-weight: 700;
            color: var(--deep-ink);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        
        .related-section {
            margin-top: 60px;
        }

        .related-title {
            font-size: 22px;
            font-weight: 800;
            color: var(--deep-ink);
            margin-bottom: 24px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: 0.3s;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }

        .related-card img {
            height: 140px;
            width: 100%;
            object-fit: cover;
        }

        .related-info {
            padding: 16px;
        }

        .related-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--deep-ink);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        
        .footer {
            background: #090D16; color: rgba(255, 255, 255, 0.6); padding: 80px 40px 40px; border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-grid {
            display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 40px; max-width: 1200px; margin: 0 auto 60px;
        }
        .footer-brand-col { padding-right: 40px; }
        .footer-brand-col .logo { margin-bottom: 20px; }
        .footer-brand-col .logo span { color: #fff; }
        .footer-brand-col p { font-size: 14px; line-height: 1.7; margin-bottom: 24px; }
        .footer-socials { display: flex; gap: 16px; }
        .footer-social-btn {
            width: 40px; height: 40px; border-radius: 50%; background: rgba(255, 255, 255, 0.05);
            display: flex; align-items: center; justify-content: center; color: #fff; transition: 0.3s;
        }
        .footer-social-btn:hover { background: var(--glacier-blue); transform: translateY(-3px); }
        .footer-col h4 { font-size: 16px; color: #fff; font-weight: 700; margin-bottom: 24px; }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 12px; }
        .footer-links a { font-size: 14px; color: rgba(255, 255, 255, 0.6); }
        .footer-links a:hover { color: #fff; padding-left: 4px; }
        .footer-bottom {
            max-width: 1200px; margin: 0 auto; padding-top: 40px; border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex; align-items: center; justify-content: space-between; font-size: 13px;
        }
        .footer-meta-links { display: flex; gap: 24px; }
        .footer-meta-links a { color: rgba(255, 255, 255, 0.4); }
        .footer-meta-links a:hover { color: #fff; }

        @media (max-width: 768px) {
            .header { padding: 0 20px; }
            .nav-menu { display: none; }
            .menu-toggle { display: block; }
            .article-main { padding: 24px 16px; }
            .article-title-detail { font-size: 24px; }
            .prev-next-box { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
            .footer-bottom { flex-direction: column; gap: 20px; text-align: center; }
        }