:root {
            --primary-red: #d32f2f;
            --primary-blue: #0d47a1;
            --accent-gold: #ffab00;
            --dark-bg: #121212;
            --light-text: #f5f5f5;
            --gray-border: #333;
            --spidey-gradient: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-blue) 100%);
            --content-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--dark-bg);
            color: var(--light-text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color 0.3s ease, text-shadow 0.3s ease;
        }
        a:hover {
            color: #ffd54f;
            text-shadow: 0 0 8px rgba(255, 215, 0, 0.5);
        }
        .container {
            max-width: var(--content-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--spidey-gradient);
            padding: 1rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            text-transform: uppercase;
            letter-spacing: 3px;
            text-shadow: 2px 2px 0 var(--primary-blue), 4px 4px 0 rgba(0,0,0,0.2);
            font-family: 'Arial Black', sans-serif;
        }
        .my-logo span {
            color: var(--accent-gold);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }
        .nav-desktop a:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: var(--dark-bg);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 10px 20px rgba(0,0,0,0.3);
            border-top: 2px solid var(--primary-red);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: var(--light-text);
            padding: 0.8rem 1rem;
            border-bottom: 1px solid var(--gray-border);
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:hover {
            color: var(--accent-gold);
        }
        .main-content {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        article {
            background: rgba(30, 30, 30, 0.8);
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            border-left: 5px solid var(--primary-red);
        }
        h1 {
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            color: white;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
            line-height: 1.2;
            border-bottom: 3px solid var(--accent-gold);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2.2rem;
            margin: 2.5rem 0 1rem;
            color: var(--accent-gold);
            padding-left: 10px;
            border-left: 4px solid var(--primary-blue);
        }
        h3 {
            font-size: 1.7rem;
            margin: 2rem 0 1rem;
            color: #4fc3f7;
        }
        h4 {
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
            color: #81c784;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(13, 71, 161, 0.2) 0%, rgba(211, 47, 47, 0.2) 100%);
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid var(--accent-gold);
            margin: 2rem 0;
            font-weight: 600;
        }
        .feature-img {
            width: 100%;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 10px 25px rgba(0,0,0,0.7);
            border: 3px solid var(--primary-blue);
        }
        .interactive-section {
            background: rgba(0,0,0,0.3);
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            text-align: center;
        }
        .interactive-section h3 {
            margin-top: 0;
        }
        form {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
            margin-top: 1.5rem;
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border-radius: 6px;
            border: 1px solid var(--gray-border);
            background: rgba(255,255,255,0.1);
            color: var(--light-text);
            min-width: 250px;
        }
        button {
            background: var(--spidey-gradient);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(255, 171, 0, 0.4);
        }
        .rating {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 2rem;
        }
        .rating i {
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating i:hover,
        .rating i.active {
            color: var(--accent-gold);
        }
        .sidebar {
            background: rgba(40, 40, 40, 0.8);
            border-radius: 12px;
            padding: 2rem;
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: var(--primary-red);
            margin-top: 0;
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed var(--gray-border);
        }
        .update-time {
            font-size: 0.9rem;
            color: #aaa;
            text-align: center;
            margin-top: 2rem;
            font-style: italic;
        }
        .site-footer {
            background: #000;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
            border-top: 3px solid var(--primary-red);
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h4 {
            color: var(--accent-gold);
            margin-bottom: 1.5rem;
        }
        .friend-links {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid var(--gray-border);
            color: #777;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.8rem;
            }
            article {
                padding: 1.5rem;
            }
            form {
                flex-direction: column;
                align-items: center;
            }
            input, textarea, select {
                width: 100%;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, .sidebar {
            animation: fadeIn 0.8s ease-out;
        }