:root {
            --primary: #1D7BFF;
            --accent: rgb(255,85,85);
            --bg-dark: #0B0F19;
            --bg-light: #F9FAFB;
            --text-dark: #111827;
            --text-light: #F3F4F6;
            --border-color: rgba(29, 123, 255, 0.15);
            --glacier-gradient: linear-gradient(135deg, #1D7BFF 0%, #00C6FF 100%);
            --deep-sea-gradient: linear-gradient(180deg, #0B0F19 0%, #161B26 100%);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-light);
            line-height: 1.6;
            overflow-x: hidden;
        }

        
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 15, 25, 0.95);
            border-bottom: 1px solid var(--border-color);
            backdrop-filter: blur(10px);
        }

        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 15px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .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(--text-light);
            white-space: nowrap;
            background: var(--glacier-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-menu {
            display: flex;
            gap: 25px;
            align-items: center;
        }

        .nav-menu a {
            color: #9CA3AF;
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .nav-menu a:hover, .nav-menu a.active {
            color: var(--primary);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
            z-index: 1002;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 2px;
            background-color: var(--text-light);
            transition: 0.3s;
        }

        
        .drawer {
            position: fixed;
            top: 0;
            left: -100%;
            width: 280px;
            height: 100%;
            background: var(--bg-dark);
            z-index: 1001;
            padding: 80px 30px 40px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            transition: left 0.3s ease-in-out;
            box-shadow: 5px 0 15px rgba(0,0,0,0.5);
            border-right: 1px solid var(--border-color);
        }

        .drawer.active {
            left: 0;
        }

        .drawer a {
            color: #9CA3AF;
            text-decoration: none;
            font-size: 18px;
            font-weight: 500;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .drawer a:hover {
            color: var(--primary);
        }

        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.6);
            z-index: 1000;
            display: none;
        }

        .drawer-overlay.active {
            display: block;
        }

        
        .list-header {
            background: var(--deep-sea-gradient);
            padding: 140px 20px 60px;
            color: #FFF;
            text-align: center;
        }

        .list-header-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .list-header h1 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 15px;
            background: var(--glacier-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 14px;
            color: #9CA3AF;
        }

        .breadcrumb a {
            color: #9CA3AF;
            text-decoration: none;
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        
        .main-container {
            max-width: 1200px;
            margin: 40px auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 2.5fr 1fr;
            gap: 40px;
        }

        .article-feed {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .article-card {
            background: #FFF;
            border-radius: 12px;
            border: 1px solid #E5E7EB;
            overflow: hidden;
            display: flex;
            gap: 20px;
            transition: all 0.3s ease;
        }

        .article-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.05);
        }

        .article-img {
            width: 240px;
            height: 160px;
            object-fit: cover;
            flex-shrink: 0;
            background-color: #E5E7EB;
        }

        .article-content {
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            text-decoration: none;
            line-height: 1.4;
        }

        .article-title:hover {
            color: var(--primary);
        }

        .article-desc {
            font-size: 14px;
            color: #6B7280;
            line-height: 1.5;
            margin-bottom: 15px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-meta {
            display: flex;
            gap: 15px;
            font-size: 12px;
            color: #9CA3AF;
            align-items: center;
            flex-wrap: wrap;
        }

        .article-tag {
            background-color: #EFF6FF;
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
            text-decoration: none;
        }

        
        .sidebar-widget {
            background: #FFF;
            border: 1px solid #E5E7EB;
            border-radius: 12px;
            padding: 24px;
            margin-bottom: 30px;
        }

        .sidebar-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
        }

        
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud-item {
            display: inline-block;
            background: #F3F4F6;
            color: #4B5563;
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 13px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
        }

        .tag-cloud-item:hover {
            background: var(--glacier-gradient);
            color: #FFF;
        }

        
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 50px;
        }

        .pagination-item {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid #E5E7EB;
            text-decoration: none;
            color: #4B5563;
            font-weight: 600;
            transition: all 0.3s;
        }

        .pagination-item:hover, .pagination-item.active {
            background: var(--primary);
            color: #FFF;
            border-color: var(--primary);
        }

        .pagination-item.disabled {
            opacity: 0.5;
            cursor: not-allowed;
            pointer-events: none;
        }

        
        footer {
            background-color: #0B0F19;
            color: #9CA3AF;
            padding: 60px 20px 20px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        .footer-grid {
            max-width: 1200px;
            margin: 0 auto 40px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.6;
            margin-top: 15px;
            color: #9CA3AF;
        }

        .footer-links h3 {
            color: #FFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links ul li {
            margin-bottom: 12px;
        }

        .footer-links ul li a {
            color: #9CA3AF;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }

        .footer-links ul li 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;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 13px;
        }

        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }

        .footer-bottom-links a {
            color: #9CA3AF;
            text-decoration: none;
        }

        .footer-bottom-links a:hover {
            color: var(--primary);
        }

        @media (max-width: 992px) {
            .main-container {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu { display: none; }
            .menu-toggle { display: flex; }
            .article-card {
                flex-direction: column;
            }
            .article-img {
                width: 100%;
                height: 200px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }