:root {
            --primary-dark: #0a1a2a; 
            --primary-accent: #c9a35e; 
            --secondary-accent: #9e2a2b; 
            --neutral-light: #f4f4f4;
            --neutral-mid: #8a8d93;
            --neutral-dark: #333;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --border-radius: 8px;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--neutral-dark);
            background-color: var(--neutral-light);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            overflow-x: hidden;
        }
        .site-header {
            background-color: var(--primary-dark);
            color: white;
            padding: var(--spacing-sm) 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo a {
            font-family: 'Georgia', serif;
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-accent);
            text-decoration: none;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary-accent);
        }
        .my-logo span {
            color: white;
            font-weight: 300;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: var(--spacing-md);
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover {
            background-color: rgba(201, 163, 94, 0.2);
            color: var(--primary-accent);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--primary-accent);
            transition: var(--transition);
            transform: translateX(-50%);
        }
        .main-nav a:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: linear-gradient(to right, var(--primary-dark), #1a2d42);
            padding: 1rem 0;
            margin-bottom: var(--spacing-md);
        }
        .breadcrumb-container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            color: var(--neutral-mid);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-accent);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-content {
            flex: 1;
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: var(--spacing-md) 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-lg);
        }
        .article-container {
            background: white;
            border-radius: var(--border-radius);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-dark);
            margin-bottom: var(--spacing-sm);
            line-height: 1.2;
            border-left: 5px solid var(--primary-accent);
            padding-left: var(--spacing-sm);
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary-accent);
            margin-top: var(--spacing-lg);
            margin-bottom: var(--spacing-sm);
            padding-bottom: var(--spacing-xs);
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.5rem;
            color: var(--primary-dark);
            margin-top: var(--spacing-md);
            margin-bottom: var(--spacing-xs);
        }
        h4 {
            font-size: 1.2rem;
            color: var(--neutral-mid);
            margin-top: var(--spacing-sm);
            margin-bottom: var(--spacing-xs);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary-dark);
            background: #f9f9f9;
            padding: var(--spacing-sm);
            border-left: 4px solid var(--primary-accent);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight {
            background-color: rgba(201, 163, 94, 0.1);
            padding: var(--spacing-sm);
            border-left: 4px solid var(--primary-accent);
            margin: var(--spacing-md) 0;
            font-style: italic;
        }
        strong {
            color: var(--secondary-accent);
            font-weight: 700;
        }
        .inline-link {
            color: var(--secondary-accent);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--secondary-accent);
        }
        .inline-link:hover {
            border-bottom-style: solid;
            color: var(--primary-dark);
        }
        .updated-time {
            display: inline-block;
            background: var(--primary-accent);
            color: var(--primary-dark);
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: var(--spacing-md);
        }
        .article-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: var(--spacing-md) auto;
            display: block;
            transition: transform 0.5s ease;
        }
        .article-img:hover {
            transform: scale(1.01);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--neutral-mid);
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .form-group {
            margin-bottom: var(--spacing-sm);
        }
        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 600;
            color: var(--primary-dark);
        }
        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary-accent);
            box-shadow: 0 0 0 3px rgba(201, 163, 94, 0.2);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, var(--secondary-accent), #c0392b);
            color: white;
            padding: 12px 24px;
            border: none;
            border-radius: var(--border-radius);
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            text-decoration: none;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(158, 42, 43, 0.3);
        }
        .btn-block {
            display: block;
            width: 100%;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: var(--spacing-xs) 0;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars input:checked ~ label,
        .rating-stars label:hover,
        .rating-stars label:hover ~ label {
            color: var(--primary-accent);
        }
        .comment {
            background: #f9f9f9;
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            margin-bottom: var(--spacing-sm);
            border-left: 3px solid var(--neutral-mid);
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary-dark);
        }
        .comment-date {
            font-size: 0.8rem;
            color: var(--neutral-mid);
        }
        .site-footer {
            background-color: var(--primary-dark);
            color: var(--neutral-light);
            padding: var(--spacing-lg) 0 var(--spacing-sm);
            margin-top: var(--spacing-lg);
        }
        .footer-container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
        }
        .footer-section h4 {
            color: var(--primary-accent);
            margin-bottom: var(--spacing-sm);
            font-size: 1.2rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary-accent);
            padding-left: 5px;
        }
        friend-link {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 8px 15px;
            border-radius: 50px;
            margin: 5px;
            transition: var(--transition);
        }
        friend-link a {
            color: var(--primary-accent);
            text-decoration: none;
            font-weight: 600;
        }
        friend-link:hover {
            background: rgba(201, 163, 94, 0.2);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: var(--spacing-md);
            margin-top: var(--spacing-md);
            border-top: 1px solid #2a3b4f;
            color: var(--neutral-mid);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: -1;
                display: grid;
                grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
                gap: var(--spacing-md);
            }
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .main-nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--primary-dark);
                flex-direction: column;
                padding: var(--spacing-md);
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            .main-nav.active ul {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .my-logo a {
                font-size: 1.8rem;
            }
        }