* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #e76f51;
            --secondary-color: #264653;
            --accent-color: #2a9d8f;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --gray-color: #6c757d;
            --transition: all 0.3s ease;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --radius: 8px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--dark-color);
            background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
            min-height: 100vh;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-header {
            background: rgba(0, 0, 0, 0.9);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--primary-color);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-color);
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 2px;
            transition: var(--transition);
            background: linear-gradient(45deg, #e76f51, #f4a261);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--light-color);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .main-nav a:hover {
            background: var(--primary-color);
            color: white;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--light-color);
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: rgba(38, 70, 83, 0.8);
            padding: 1rem;
            border-radius: var(--radius);
            margin: 1rem 0;
        }
        .breadcrumb a {
            color: var(--accent-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin: 2rem 0;
        }
        .main-content {
            background: rgba(255, 255, 255, 0.95);
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: rgba(255, 255, 255, 0.95);
            padding: 1.5rem;
            border-radius: var(--radius);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        h1 {
            color: var(--secondary-color);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--primary-color);
            padding-bottom: 0.5rem;
        }
        h2 {
            color: var(--secondary-color);
            font-size: 2.2rem;
            margin: 2rem 0 1rem;
            padding-left: 1rem;
            border-left: 4px solid var(--accent-color);
        }
        h3 {
            color: var(--accent-color);
            font-size: 1.8rem;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            color: var(--primary-color);
            font-size: 1.4rem;
            margin: 1.2rem 0 0.6rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(231, 111, 81, 0.1) 0%, rgba(42, 157, 143, 0.1) 100%);
            padding: 1.5rem;
            border-left: 4px solid var(--primary-color);
            margin: 1.5rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .code-block {
            background: #1e1e1e;
            color: #d4d4d4;
            padding: 1.5rem;
            border-radius: var(--radius);
            font-family: 'Courier New', monospace;
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        .keyword {
            color: #569cd6;
        }
        .function {
            color: #dcdcaa;
        }
        .string {
            color: #ce9178;
        }
        .search-container {
            background: var(--light-color);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
        }
        .search-btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius);
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-btn:hover {
            background: #d65c3e;
            transform: translateY(-2px);
        }
        .comment-section, .rating-section {
            background: var(--light-color);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        textarea, input[type="text"], input[type="email"] {
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        textarea:focus, input:focus {
            outline: none;
            border-color: var(--accent-color);
        }
        textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background: var(--accent-color);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-btn:hover {
            background: #238f82;
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ddd;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating input:checked ~ label,
        .star-rating input:hover ~ label {
            color: #ffd700;
        }
        .content-image {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .content-image:hover {
            transform: scale(1.02);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray-color);
            margin-top: 0.5rem;
        }
        .internal-links {
            background: rgba(42, 157, 143, 0.1);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
        }
        .internal-links h3 {
            margin-top: 0;
        }
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
        }
        .link-card {
            background: white;
            padding: 1rem;
            border-radius: var(--radius);
            text-decoration: none;
            color: var(--dark-color);
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .link-card:hover {
            border-color: var(--accent-color);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .main-footer {
            background: rgba(0, 0, 0, 0.9);
            color: var(--light-color);
            padding: 3rem 0 2rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
        }
        friend-link a {
            color: var(--accent-color);
            text-decoration: none;
            transition: var(--transition);
        }
        friend-link a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--gray-color);
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .mobile-menu-btn {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .search-form {
                flex-direction: column;
            }
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        .text-center {
            text-align: center;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .emoji {
            font-size: 1.2em;
            margin: 0 0.2em;
        }
        .update-time {
            background: var(--primary-color);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            display: inline-block;
            margin-bottom: 1.5rem;
            font-weight: 600;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .comparison-table th,
        .comparison-table td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid #eee;
        }
        .comparison-table th {
            background: var(--secondary-color);
            color: white;
            font-weight: 600;
        }
        .comparison-table tr:hover {
            background: rgba(42, 157, 143, 0.1);
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: white;
            padding: 2rem;
            border-radius: var(--radius);
            text-align: center;
            margin: 2rem 0;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.1)"/></svg>');
            background-size: cover;
        }
        .cta-box h3 {
            color: white;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            position: relative;
            z-index: 1;
            margin-bottom: 1.5rem;
        }
        .cta-button {
            display: inline-block;
            background: white;
            color: var(--primary-color);
            padding: 0.8rem 2rem;
            border-radius: var(--radius);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
        }