:root {
            --primary-color: #6a11cb;
            --secondary-color: #2575fc;
            --accent-color: #ff4d8d;
            --dark-bg: #0f0b1f;
            --light-bg: #f8f9ff;
            --text-dark: #1a1a2e;
            --text-light: #e6e9ff;
            --card-bg: rgba(255, 255, 255, 0.92);
            --shadow: 0 10px 30px rgba(106, 17, 203, 0.15);
            --border-radius: 16px;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            --max-content-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
        }
        .container {
            width: 100%;
            max-width: var(--max-content-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(90deg, var(--dark-bg) 0%, #1a1a3a 100%);
            color: var(--text-light);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 1.8rem;
            background: linear-gradient(45deg, #6a11cb, #2575fc, #ff4d8d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 900;
            letter-spacing: -1px;
        }
        .my-logo a {
            background: none;
            -webkit-text-fill-color: inherit;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
            transition: width 0.3s ease;
            border-radius: 3px;
        }
        .main-nav a:hover::after,
        .main-nav a:focus::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: rgba(255, 255, 255, 0.9);
            border-bottom: 1px solid #eaeaea;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-color);
        }
        .breadcrumb span {
            color: #666;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 3rem 0;
        }
        article {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            padding: 3rem;
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
        }
        .article-header {
            margin-bottom: 3rem;
            border-bottom: 3px solid linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            padding-bottom: 1.5rem;
        }
        .article-header h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 1rem;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .meta-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            color: #666;
            font-size: 0.95rem;
        }
        .update-time {
            color: var(--accent-color);
            font-weight: 600;
        }
        .featured-image {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            transition: transform 0.5s ease;
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        h2, h3, h4 {
            color: var(--text-dark);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h2 {
            font-size: 2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eaeaea;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--primary-color);
        }
        h4 {
            font-size: 1.3rem;
            color: var(--secondary-color);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(255, 77, 141, 0.15) 0%, rgba(37, 117, 252, 0.15) 100%);
            border-left: 5px solid var(--accent-color);
            padding: 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin: 2rem 0;
            font-weight: 500;
        }
        .interactive-section {
            background: var(--light-bg);
            border-radius: var(--border-radius);
            padding: 2rem;
            margin: 3rem 0;
            border: 2px dashed var(--primary-color);
        }
        .interactive-section h3 {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .interactive-section h3 i {
            color: var(--accent-color);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--text-dark);
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem 1.2rem;
            border: 2px solid #ddd;
            border-radius: 10px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(106, 17, 203, 0.2);
        }
        button, .btn {
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.7rem;
        }
        button:hover, .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(106, 17, 203, 0.3);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            direction: rtl;
            margin: 1rem 0;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars input:checked ~ label,
        .rating-stars label:hover,
        .rating-stars label:hover ~ label {
            color: #ffc107;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            padding: 2rem;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid #eaeaea;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .sidebar-widget h3 i {
            color: var(--accent-color);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #f0f0f0;
        }
        .related-links li:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .related-links a {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            color: var(--text-dark);
            font-weight: 500;
        }
        .related-links a:hover {
            color: var(--primary-color);
            transform: translateX(5px);
        }
        .related-links a i {
            color: var(--secondary-color);
            font-size: 0.9rem;
        }
        .site-footer {
            background: var(--dark-bg);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-widget h4 {
            color: var(--text-light);
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid rgba(255, 255, 255, 0.1);
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #b3b3ff;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        friend-link a:hover {
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .article-header h1 {
                font-size: 2.3rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                background: var(--dark-bg);
                padding: 2rem;
                transition: left 0.4s ease;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
                z-index: 999;
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1.5rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            article {
                padding: 2rem;
            }
            .featured-image {
                height: 300px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            article {
                padding: 1.5rem;
            }
            .meta-info {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .strong {
            font-weight: 700;
            color: var(--primary-color);
        }
        .fade-in {
            animation: fadeIn 1s ease-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .pulse {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(106, 17, 203, 0.4); }
            70% { box-shadow: 0 0 0 15px rgba(106, 17, 203, 0); }
            100% { box-shadow: 0 0 0 0 rgba(106, 17, 203, 0); }
        }