* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: #fbbf24;
            letter-spacing: -0.5px;
            font-family: Georgia, serif;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
            color: #f59e0b;
        }
        .my-logo span {
            color: #60a5fa;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e2e8f0;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
            transition: color 0.3s;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #fbbf24;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #fbbf24;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 0.8rem 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid #cbd5e0;
        }
        .breadcrumb a {
            color: #4a5568;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb .separator { margin: 0 8px; color: #a0aec0; }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0;
        }
        main {
            background: white;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        article h1 {
            font-size: 2.8rem;
            color: #1a365d;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #fbbf24;
            padding-bottom: 15px;
        }
        article h2 {
            font-size: 2rem;
            color: #2d3748;
            margin: 2.5rem 0 1rem;
            padding-top: 10px;
            border-top: 1px dashed #e2e8f0;
        }
        article h3 {
            font-size: 1.5rem;
            color: #4a5568;
            margin: 2rem 0 1rem;
        }
        article h4 {
            font-size: 1.2rem;
            color: #718096;
            margin: 1.5rem 0 0.8rem;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        article strong {
            color: #2d3748;
            background: linear-gradient(transparent 60%, #fef3c7 60%);
            padding: 0 2px;
        }
        .intro {
            font-size: 1.2rem;
            color: #4a5568;
            background-color: #f0f9ff;
            padding: 25px;
            border-left: 5px solid #60a5fa;
            border-radius: 0 8px 8px 0;
            margin-bottom: 2.5rem;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #718096;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .internal-link {
            color: #3182ce;
            text-decoration: none;
            font-weight: 500;
            border-bottom: 1px dotted transparent;
            transition: all 0.2s;
        }
        .internal-link:hover {
            border-bottom-color: #3182ce;
            color: #2c5282;
        }
        .highlight-box {
            background: linear-gradient(to right, #fef3c7, #fde68a);
            border-left: 4px solid #f59e0b;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 2rem 0;
        }
        aside {
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            background: white;
            border-radius: 10px;
            padding: 25px;
            margin-bottom: 25px;
            box-shadow: 0 5px 12px rgba(0,0,0,0.05);
        }
        .sidebar-widget h3 {
            color: #1a365d;
            margin-bottom: 1.2rem;
            padding-bottom: 8px;
            border-bottom: 2px solid #e2e8f0;
            font-size: 1.3rem;
        }
        .search-form input,
        .comment-form input,
        .comment-form textarea,
        .rating-form select {
            width: 100%;
            padding: 12px 15px;
            margin-bottom: 15px;
            border: 1px solid #cbd5e0;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .search-form input:focus,
        .comment-form input:focus,
        .comment-form textarea:focus,
        .rating-form select:focus {
            outline: none;
            border-color: #3182ce;
            box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.2);
        }
        .btn {
            background: #3182ce;
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: background 0.3s, transform 0.2s;
            display: inline-block;
            text-align: center;
        }
        .btn:hover {
            background: #2c5282;
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: #f59e0b;
        }
        .btn-secondary:hover {
            background: #d97706;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin-bottom: 15px;
        }
        .star {
            color: #cbd5e0;
            cursor: pointer;
            font-size: 1.5rem;
            transition: color 0.2s;
        }
        .star.active,
        .star:hover {
            color: #fbbf24;
        }
        .site-footer {
            background: #1a202c;
            color: #a0aec0;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-logo {
            font-size: 2rem;
            color: #fbbf24;
            margin-bottom: 15px;
        }
        .footer-links h4 {
            color: #e2e8f0;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #a0aec0;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: #fbbf24;
        }
        friend-link {
            display: inline-block;
            background: #2d3748;
            color: #cbd5e0;
            padding: 8px 15px;
            margin: 5px;
            border-radius: 4px;
            text-decoration: none;
            font-size: 0.9rem;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: #4a5568;
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #718096;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                position: fixed;
                top: 80px;
                left: -100%;
                flex-direction: column;
                background: #2d3748;
                width: 100%;
                padding: 2rem;
                transition: left 0.4s ease;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                z-index: 999;
            }
            .main-nav.active ul {
                left: 0;
            }
            article h1 {
                font-size: 2.2rem;
            }
            article h2 {
                font-size: 1.8rem;
            }
            .intro {
                padding: 20px;
                font-size: 1.1rem;
            }
            main {
                padding: 25px;
            }
        }