* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a237e;
            --secondary: #ff3d00;
            --accent: #00e5ff;
            --dark: #0d1021;
            --light: #f5f7ff;
            --gray: #6b7280;
            --success: #10b981;
            --warning: #f59e0b;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 3rem;
            --spacing-xl: 4rem;
            --border-radius: 8px;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #0d1021 0%, #1a237e 100%);
            background-attachment: fixed;
            min-height: 100vh;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        header {
            background: rgba(13, 16, 33, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--accent);
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: var(--spacing-sm) 0;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            color: var(--accent);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            text-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
        }
        .my-logo:hover {
            color: white;
            transform: scale(1.05);
        }
        .my-logo i {
            color: var(--secondary);
        }
        .breadcrumb {
            padding: var(--spacing-xs) 0;
            background: rgba(255, 255, 255, 0.05);
            margin-bottom: var(--spacing-md);
            border-radius: var(--border-radius);
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0 var(--spacing-sm);
        }
        .breadcrumb li {
            margin-right: var(--spacing-xs);
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: white;
            text-decoration: underline;
        }
        .breadcrumb li:after {
            content: "›";
            margin-left: var(--spacing-xs);
            color: var(--gray);
        }
        .breadcrumb li:last-child:after {
            content: "";
        }
        .nav-desktop {
            display: flex;
            gap: var(--spacing-md);
        }
        .nav-desktop 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;
        }
        .nav-desktop a:hover {
            background: rgba(255, 61, 0, 0.2);
            color: var(--accent);
        }
        .nav-desktop a:after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition);
            transform: translateX(-50%);
        }
        .nav-desktop a:hover:after {
            width: 80%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: var(--spacing-xs);
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--dark);
            padding: var(--spacing-md);
            border-top: 1px solid var(--accent);
            box-shadow: var(--shadow);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            padding: var(--spacing-sm);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }
        .nav-mobile a:hover {
            background: rgba(255, 61, 0, 0.2);
            color: var(--accent);
            padding-left: var(--spacing-lg);
        }
        .search-container {
            max-width: 600px;
            margin: var(--spacing-lg) auto;
            padding: var(--spacing-md);
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--border-radius);
            border: 1px solid rgba(0, 229, 255, 0.2);
        }
        .search-form {
            display: flex;
            gap: var(--spacing-xs);
        }
        .search-input {
            flex: 1;
            padding: 12px 20px;
            border: 2px solid transparent;
            border-radius: var(--border-radius);
            background: rgba(255, 255, 255, 0.1);
            color: white;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
        }
        .search-button {
            padding: 12px 24px;
            background: linear-gradient(135deg, var(--secondary), #ff6b00);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(255, 61, 0, 0.3);
        }
        main {
            background: rgba(255, 255, 255, 0.97);
            border-radius: var(--border-radius);
            margin: var(--spacing-md) auto;
            padding: var(--spacing-xl);
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
        }
        main:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary));
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: var(--spacing-md);
            line-height: 1.2;
            text-align: center;
            border-bottom: 3px solid var(--accent);
            padding-bottom: var(--spacing-sm);
        }
        h2 {
            color: var(--primary);
            font-size: 2.2rem;
            margin: var(--spacing-lg) 0 var(--spacing-md);
            padding-left: var(--spacing-sm);
            border-left: 5px solid var(--secondary);
        }
        h3 {
            color: var(--dark);
            font-size: 1.8rem;
            margin: var(--spacing-md) 0 var(--spacing-sm);
        }
        h4 {
            color: var(--dark);
            font-size: 1.4rem;
            margin: var(--spacing-sm) 0;
        }
        p {
            margin-bottom: var(--spacing-md);
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            color: var(--primary);
            font-weight: 600;
            background: rgba(0, 229, 255, 0.1);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent);
        }
        .highlight {
            background: linear-gradient(120deg, rgba(0, 229, 255, 0.2) 0%, rgba(0, 229, 255, 0) 100%);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            margin: var(--spacing-md) 0;
            border: 1px solid rgba(0, 229, 255, 0.3);
        }
        .content-section {
            margin-bottom: var(--spacing-xl);
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: var(--spacing-md) auto;
            display: block;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 3px solid transparent;
            background: linear-gradient(white, white) padding-box,
                        linear-gradient(135deg, var(--primary), var(--accent), var(--secondary)) border-box;
        }
        .article-image:hover {
            transform: scale(1.01);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: var(--spacing-xs);
            font-size: 0.9rem;
        }
        .content-link {
            color: var(--secondary);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--secondary);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--primary);
            border-bottom-style: solid;
            background: rgba(255, 61, 0, 0.1);
        }
        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-md);
            margin: var(--spacing-md) 0;
        }
        .feature-item {
            background: white;
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            border: 1px solid rgba(0, 0, 0, 0.1);
            transition: var(--transition);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
        }
        .feature-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            border-color: var(--accent);
        }
        .feature-item i {
            color: var(--accent);
            font-size: 1.5rem;
            margin-bottom: var(--spacing-xs);
        }
        .rating-section, .comment-section {
            background: rgba(245, 247, 255, 0.8);
            border-radius: var(--border-radius);
            padding: var(--spacing-lg);
            margin: var(--spacing-xl) 0;
            border: 1px solid rgba(0, 229, 255, 0.2);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            max-width: 600px;
            margin: 0 auto;
        }
        .star-rating {
            display: flex;
            gap: var(--spacing-xs);
            justify-content: center;
            margin: var(--spacing-sm) 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: var(--gray);
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--warning);
        }
        .star-rating input:checked ~ label {
            color: var(--warning);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }
        .form-control {
            padding: 12px 16px;
            border: 1px solid rgba(0, 0, 0, 0.2);
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            background: linear-gradient(135deg, var(--primary), #283593);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(26, 35, 126, 0.3);
        }
        .update-time {
            text-align: right;
            color: var(--gray);
            font-size: 0.9rem;
            margin-top: var(--spacing-xl);
            padding-top: var(--spacing-sm);
            border-top: 1px solid rgba(0, 0, 0, 0.1);
        }
        footer {
            background: var(--dark);
            color: white;
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-section h3 {
            color: var(--accent);
            margin-bottom: var(--spacing-md);
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: var(--spacing-xs);
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin: var(--spacing-sm) 0;
            padding: var(--spacing-sm);
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(5px);
        }
        friend-link a {
            color: var(--accent);
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            .container {
                padding: 0 var(--spacing-md);
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.9rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .header-content {
                padding: var(--spacing-sm);
            }
            main {
                padding: var(--spacing-md);
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-button {
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            :root {
                --spacing-md: 1.5rem;
                --spacing-lg: 2rem;
                --spacing-xl: 2.5rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.8rem;
            }
            .breadcrumb ul {
                font-size: 0.9rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .content-section {
            animation: fadeIn 0.6s ease-out;
        }
        .text-center { text-align: center; }
        .text-accent { color: var(--accent); }
        .text-secondary { color: var(--secondary); }
        .mt-1 { margin-top: var(--spacing-sm); }
        .mt-2 { margin-top: var(--spacing-md); }
        .mt-3 { margin-top: var(--spacing-lg); }
        .mb-1 { margin-bottom: var(--spacing-sm); }
        .mb-2 { margin-bottom: var(--spacing-md); }
        .mb-3 { margin-bottom: var(--spacing-lg); }
        .py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
        .px-2 { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .highlight-box {
            background: linear-gradient(135deg, rgba(255, 61, 0, 0.1), rgba(0, 229, 255, 0.1));
            border-left: 4px solid var(--secondary);
            padding: var(--spacing-md);
            margin: var(--spacing-md) 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--secondary);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            font-size: 1.5rem;
            box-shadow: 0 4px 12px rgba(255, 61, 0, 0.3);
            transition: var(--transition);
            z-index: 100;
            opacity: 0;
            visibility: hidden;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            transform: translateY(-5px);
            background: var(--primary);
        }