:root {
            --primary-dark: #0f1419;
            --secondary-dark: #1a2029;
            --accent-red: #e63946;
            --accent-cyan: #4cc9f0;
            --accent-purple: #7209b7;
            --text-primary: #f8f9fa;
            --text-secondary: #adb5bd;
            --border-color: #2d3748;
            --card-bg: rgba(26, 32, 41, 0.9);
            --transition-speed: 0.3s;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--primary-dark);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(114, 9, 183, 0.05) 0%, transparent 20%),
                radial-gradient(circle at 90% 80%, rgba(76, 201, 240, 0.05) 0%, transparent 20%);
        }
        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-speed) ease;
        }
        a:hover {
            color: var(--accent-red);
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--secondary-dark);
            border-bottom: 2px solid var(--accent-red);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--accent-red), var(--accent-purple));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .my-logo:hover {
            transform: scale(1.02);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-red);
            transition: width var(--transition-speed) ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--accent-cyan);
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--accent-cyan);
        }
        .breadcrumb i {
            margin: 0 0.5rem;
        }
        .article-header {
            text-align: center;
            padding: 3rem 0 2rem;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 3rem;
        }
        .article-header h1 {
            font-size: 3.2rem;
            margin-bottom: 1rem;
            background: linear-gradient(to right, #f8f9fa, var(--accent-cyan));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-top: 1.5rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            font-size: 1.1rem;
        }
        .article-content h2 {
            font-size: 2.4rem;
            color: var(--accent-cyan);
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-purple);
        }
        .article-content h3 {
            font-size: 1.8rem;
            color: #f8f9fa;
            margin: 2.5rem 0 1rem;
        }
        .article-content h4 {
            font-size: 1.4rem;
            color: var(--text-secondary);
            margin: 2rem 0 1rem;
        }
        .article-content p {
            margin-bottom: 1.8rem;
            text-align: justify;
        }
        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            border: 2px solid var(--border-color);
            margin: 2rem auto;
            display: block;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
            transition: transform var(--transition-speed) ease;
        }
        .article-content img:hover {
            transform: scale(1.01);
        }
        .highlight-box {
            background: var(--card-bg);
            border-left: 5px solid var(--accent-red);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip {
            background: linear-gradient(135deg, rgba(76, 201, 240, 0.1), transparent);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            border: 1px solid rgba(76, 201, 240, 0.3);
        }
        .tip i {
            color: var(--accent-cyan);
            margin-right: 0.5rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 1.8rem;
            border: 1px solid var(--border-color);
        }
        .widget h3 {
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            color: var(--accent-cyan);
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            background: var(--primary-dark);
            border: 1px solid var(--border-color);
            border-radius: 8px 0 0 8px;
            color: var(--text-primary);
            font-size: 1rem;
        }
        .search-form button {
            background: linear-gradient(135deg, var(--accent-purple), var(--accent-red));
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: 600;
            transition: opacity var(--transition-speed) ease;
        }
        .search-form button:hover {
            opacity: 0.9;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffc107;
            margin: 1rem 0;
        }
        .stars i {
            cursor: pointer;
            transition: transform 0.2s ease;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .rating-widget textarea,
        .rating-widget input {
            width: 100%;
            padding: 0.9rem;
            background: var(--primary-dark);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        .rating-widget button {
            background: linear-gradient(135deg, var(--accent-red), #ff6b6b);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: transform var(--transition-speed) ease;
        }
        .rating-widget button:hover {
            transform: translateY(-3px);
        }
        .site-footer {
            background-color: var(--secondary-dark);
            margin-top: 5rem;
            padding: 3rem 0;
            border-top: 2px solid var(--accent-purple);
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2rem;
        }
        friend-link {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            margin: 2rem 0;
        }
        friend-link a {
            padding: 0.7rem 1.5rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 30px;
            border: 1px solid var(--border-color);
            transition: all var(--transition-speed) ease;
        }
        friend-link a:hover {
            background: rgba(230, 57, 70, 0.2);
            border-color: var(--accent-red);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            color: var(--text-secondary);
            font-size: 0.9rem;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
            width: 100%;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--secondary-dark);
                padding: 1rem;
                border-top: 1px solid var(--border-color);
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
            }
            .main-nav.active ul {
                display: flex;
            }
            .article-header h1 {
                font-size: 2.5rem;
            }
            .meta-info {
                flex-direction: column;
                gap: 0.5rem;
                align-items: center;
            }
            .content-grid {
                gap: 2rem;
            }
        }