:root {
            --primary: #0057B7; 
            --secondary: #FFD700; 
            --accent: #DC143C; 
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --transition: all 0.3s ease;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --border-radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light);
            color: #333;
            line-height: 1.6;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark), var(--primary));
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            display: flex;
            align-items: center;
        }
        .logo a {
            color: white;
            display: flex;
            align-items: center;
        }
        .logo i {
            color: var(--secondary);
            margin-right: 10px;
            font-size: 2rem;
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-sub {
            font-size: 0.7rem;
            font-weight: 400;
            opacity: 0.8;
        }
        .nav-desktop {
            display: flex;
            gap: 1.5rem;
        }
        .nav-desktop a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--secondary);
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            width: 100%;
            background-color: var(--dark);
            padding: 1rem;
            margin-top: 1rem;
            border-radius: var(--border-radius);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            max-width: 1400px;
            margin: 0 auto;
        }
        .breadcrumb li {
            display: inline;
        }
        .breadcrumb li+li::before {
            content: ">";
            padding: 0 8px;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .container {
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
            flex: 1;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
        }
        .main-content {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        article {
            max-width: 900px;
        }
        .article-header {
            margin-bottom: 2.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 2px solid var(--secondary);
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--dark);
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .meta {
            display: flex;
            gap: 1.5rem;
            color: var(--gray);
            font-size: 0.95rem;
            margin-bottom: 1rem;
        }
        .meta i {
            margin-right: 0.5rem;
        }
        .intro {
            font-size: 1.2rem;
            color: var(--dark);
            background: linear-gradient(to right, rgba(255, 215, 0, 0.1), transparent);
            padding: 1.5rem;
            border-left: 4px solid var(--secondary);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin-bottom: 2.5rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--dark);
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(255, 215, 0, 0.15);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--secondary);
            margin: 2rem 0;
        }
        .highlight strong {
            color: var(--primary);
        }
        .insider-tip {
            background-color: #f0f8ff;
            border: 1px dashed var(--primary);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            position: relative;
        }
        .insider-tip::before {
            content: "💡 INSIDER TIP";
            display: block;
            font-weight: 800;
            color: var(--accent);
            font-size: 0.9rem;
            margin-bottom: 0.8rem;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 2.5rem auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: -1.5rem;
            margin-bottom: 2.5rem;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .link-in-article {
            font-weight: 600;
            color: var(--primary);
            border-bottom: 1px dotted var(--primary);
        }
        .link-in-article:hover {
            border-bottom-style: solid;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.8rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .widget h3 {
            font-size: 1.3rem;
            color: var(--primary);
            margin-top: 0;
            margin-bottom: 1.2rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--secondary);
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-right: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--accent);
        }
        .related-links a {
            display: block;
            padding: 0.9rem;
            margin-bottom: 0.8rem;
            background: #f8f9fa;
            border-radius: var(--border-radius);
            border-left: 3px solid var(--primary);
            transition: var(--transition);
        }
        .related-links a:hover {
            background: #e9ecef;
            transform: translateX(5px);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            margin-bottom: 0.5rem;
        }
        .stars .star:hover,
        .stars .star.active {
            color: var(--secondary);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-group label {
            font-weight: 600;
            color: var(--dark);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(to right, var(--primary), #004494);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.7rem;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, var(--accent), #b01030);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(220, 20, 60, 0.2);
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
        .footer-logo i {
            color: var(--secondary);
        }
        .footer-about {
            font-size: 0.95rem;
            opacity: 0.8;
            line-height: 1.7;
        }
        friend-link {
            display: block;
            margin-top: 2rem;
        }
        friend-link h4 {
            color: var(--secondary);
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .friend-links {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .friend-links a {
            color: #ccc;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: var(--transition);
        }
        .friend-links a:hover {
            color: var(--secondary);
            padding-left: 0.8rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            opacity: 0.7;
            grid-column: 1 / -1;
        }
        @media (max-width: 768px) {
            .site-header, .breadcrumb {
                padding: 1rem;
            }
            .container {
                padding: 0 1rem;
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .main-content {
                padding: 1.8rem;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .footer-container {
                grid-template-columns: 1fr;
                text-align: center;
                gap: 2rem;
            }
            .friend-links a:hover {
                padding-left: 0;
            }
        }