:root {
            --primary-red: #e62429;
            --secondary-blue: #0067b1;
            --dark-bg: #1a1a1a;
            --light-text: #f5f5f5;
            --gray-border: #333;
            --accent-gold: #ffd700;
            --spacing-sm: 10px;
            --spacing-md: 20px;
            --spacing-lg: 40px;
            --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-main);
            background-color: var(--dark-bg);
            color: var(--light-text);
            line-height: 1.8;
            overflow-x: hidden;
        }
        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--primary-red);
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .site-header {
            background: linear-gradient(135deg, #000 0%, var(--dark-bg) 100%);
            border-bottom: 3px solid var(--primary-red);
            padding: var(--spacing-md) 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo a {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary-red);
            text-transform: uppercase;
            letter-spacing: 2px;
            font-family: 'Arial Black', sans-serif;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .logo a:hover {
            color: var(--light-text);
            text-decoration: none;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: var(--spacing-lg);
        }
        .main-nav a {
            font-size: 1.1rem;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 4px;
        }
        .main-nav a:hover {
            background-color: var(--primary-red);
            color: white;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--light-text);
            cursor: pointer;
        }
        .breadcrumb {
            margin-top: var(--spacing-md);
            font-size: 0.9rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:hover {
            color: var(--accent-gold);
        }
        .search-box {
            margin: var(--spacing-lg) 0;
            background: rgba(255,255,255,0.05);
            padding: var(--spacing-md);
            border-radius: 10px;
        }
        .search-form {
            display: flex;
            max-width: 600px;
        }
        .search-form input {
            flex: 1;
            padding: 15px;
            border: 2px solid var(--gray-border);
            border-radius: 8px 0 0 8px;
            background: #222;
            color: var(--light-text);
            font-size: 1rem;
        }
        .search-form button {
            background: var(--primary-red);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.2rem;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #ff0000;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-lg);
            margin: var(--spacing-lg) 0;
        }
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: rgba(30,30,30,0.8);
            padding: var(--spacing-lg);
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .article-content h1 {
            color: var(--primary-red);
            font-size: 3rem;
            margin-bottom: var(--spacing-md);
            border-bottom: 3px solid var(--secondary-blue);
            padding-bottom: 15px;
        }
        .article-content h2 {
            color: var(--accent-gold);
            font-size: 2.2rem;
            margin: var(--spacing-lg) 0 var(--spacing-md);
            padding-left: 10px;
            border-left: 5px solid var(--primary-red);
        }
        .article-content h3 {
            color: #4fc3f7;
            font-size: 1.8rem;
            margin: var(--spacing-md) 0;
        }
        .article-content h4 {
            color: #81c784;
            font-size: 1.4rem;
            margin: var(--spacing-sm) 0;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .article-content strong {
            color: var(--accent-gold);
            font-weight: 700;
        }
        .article-content em {
            color: #ffab91;
            font-style: italic;
        }
        .highlight-box {
            background: rgba(230, 36, 41, 0.1);
            border-left: 5px solid var(--primary-red);
            padding: var(--spacing-md);
            margin: var(--spacing-md) 0;
            border-radius: 0 10px 10px 0;
        }
        .feature-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: var(--spacing-lg) auto;
            display: block;
            border: 3px solid var(--secondary-blue);
            box-shadow: 0 5px 15px rgba(0,0,0,0.7);
            transition: transform 0.5s;
        }
        .feature-img:hover {
            transform: scale(1.02);
        }
        .update-time {
            text-align: right;
            font-style: italic;
            color: #aaa;
            margin-bottom: var(--spacing-md);
        }
        .sidebar {
            background: rgba(40,40,40,0.9);
            padding: var(--spacing-md);
            border-radius: 15px;
            height: fit-content;
            position: sticky;
            top: 150px;
        }
        .sidebar h3 {
            color: var(--accent-gold);
            margin-bottom: var(--spacing-md);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-red);
        }
        .comment-form, .rating-form {
            margin-bottom: var(--spacing-lg);
        }
        .form-group {
            margin-bottom: var(--spacing-md);
        }
        .form-group label {
            display: block;
            margin-bottom: 5px;
            color: #ccc;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px;
            background: #222;
            border: 1px solid var(--gray-border);
            border-radius: 6px;
            color: var(--light-text);
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background: var(--secondary-blue);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: bold;
            width: 100%;
            transition: background 0.3s;
        }
        .submit-btn:hover {
            background: #0086d6;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin: 15px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating input:checked ~ label {
            color: var(--accent-gold);
        }
        .site-footer {
            background: #111;
            padding: var(--spacing-lg) 0;
            margin-top: var(--spacing-lg);
            border-top: 3px solid var(--primary-red);
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            margin-bottom: var(--spacing-lg);
        }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.05);
            padding: 10px 20px;
            border-radius: 6px;
            transition: all 0.3s;
        }
        friend-link:hover {
            background: var(--primary-red);
            transform: translateY(-3px);
        }
        friend-link a {
            color: var(--light-text);
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            color: #888;
            font-size: 0.9rem;
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--gray-border);
        }
        @media (max-width: 992px) {
            .main-nav ul {
                gap: var(--spacing-md);
            }
            .article-content h1 {
                font-size: 2.5rem;
            }
            .article-content h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--dark-bg);
                position: absolute;
                top: 100%;
                left: 0;
                padding: var(--spacing-md);
                border-top: 2px solid var(--primary-red);
                box-shadow: 0 10px 20px rgba(0,0,0,0.8);
            }
            .main-nav.active ul {
                display: flex;
            }
            .header-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .logo {
                margin-bottom: var(--spacing-md);
            }
            .article-content h1 {
                font-size: 2rem;
            }
            .article-content h2 {
                font-size: 1.8rem;
            }
            .sidebar {
                position: static;
            }
        }