:root {
            --primary: #7c3aed;
            --primary-dark: #5b21b6;
            --secondary: #f59e0b;
            --dark: #1f2937;
            --light: #f9fafb;
            --gray: #6b7280;
            --gray-light: #e5e7eb;
            --success: #10b981;
            --border-radius: 12px;
            --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f172a;
            color: #e2e8f0;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #fbbf24;
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid #334155;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            font-size: 2rem;
            color: var(--secondary);
        }
        .desktop-nav {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
        }
        .desktop-nav a {
            color: #cbd5e1;
            font-weight: 600;
            padding: 8px 0;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width 0.3s;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--secondary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: rgba(15, 23, 42, 0.98);
            padding: 20px;
            display: none;
            flex-direction: column;
            gap: 20px;
            border-top: 1px solid #334155;
            z-index: 999;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: #cbd5e1;
            font-weight: 600;
            padding: 12px;
            border-left: 4px solid transparent;
            transition: var(--transition);
        }
        .mobile-nav a:hover {
            border-left-color: var(--secondary);
            background-color: rgba(255, 255, 255, 0.05);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #cbd5e1;
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        main {
            background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
            padding: 30px 0 60px;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: rgba(30, 41, 59, 0.7);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow);
            border: 1px solid #334155;
        }
        h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 25px;
            color: white;
            background: linear-gradient(90deg, #fff, var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary);
            margin: 50px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #334155;
        }
        h3 {
            font-size: 1.5rem;
            color: #cbd5e1;
            margin: 35px 0 15px;
        }
        h4 {
            font-size: 1.2rem;
            color: #94a3b8;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 22px;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #e2e8f0;
            font-weight: 500;
            margin-bottom: 30px;
            padding: 20px;
            background-color: rgba(124, 58, 237, 0.1);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight {
            background-color: rgba(245, 158, 11, 0.15);
            padding: 20px;
            border-radius: var(--border-radius);
            margin: 25px 0;
            border-left: 4px solid var(--secondary);
        }
        .highlight strong {
            color: var(--secondary);
        }
        .img-container {
            margin: 35px 0;
            text-align: center;
        }
        .featured-img {
            width: 100%;
            max-width: 800px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            border: 2px solid #475569;
            transition: var(--transition);
        }
        .featured-img:hover {
            transform: scale(1.01);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
        }
        .caption {
            margin-top: 10px;
            font-style: italic;
            color: #94a3b8;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        strong {
            color: #f8fafc;
            font-weight: 700;
        }
        .quote {
            font-style: italic;
            border-left: 4px solid var(--primary);
            padding-left: 25px;
            margin: 30px 0;
            color: #cbd5e1;
            font-size: 1.2rem;
        }
        .author {
            display: block;
            text-align: right;
            color: var(--secondary);
            font-weight: 600;
            margin-top: 10px;
        }
        .interactive-section {
            background-color: rgba(15, 23, 42, 0.8);
            padding: 30px;
            border-radius: var(--border-radius);
            margin: 40px 0;
            border: 1px solid #475569;
        }
        .interactive-title {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 25px;
            color: var(--secondary);
        }
        .interactive-title i {
            font-size: 1.5rem;
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            color: #cbd5e1;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 14px;
            background-color: #1e293b;
            border: 1px solid #475569;
            border-radius: 8px;
            color: white;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
        }
        button {
            background: linear-gradient(90deg, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        button:hover {
            background: linear-gradient(90deg, var(--primary-dark), var(--primary));
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .rating {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .star {
            font-size: 2rem;
            color: #475569;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--secondary);
        }
        .update-time {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background-color: rgba(16, 185, 129, 0.1);
            color: var(--success);
            padding: 10px 20px;
            border-radius: 50px;
            margin-top: 30px;
            font-weight: 600;
        }
        aside {
            background-color: rgba(30, 41, 59, 0.7);
            border-radius: var(--border-radius);
            padding: 25px;
            height: fit-content;
            position: sticky;
            top: 100px;
            border: 1px solid #334155;
        }
        .sidebar-title {
            color: var(--secondary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #475569;
            font-size: 1.3rem;
        }
        .toc {
            list-style: none;
            margin-left: 0;
        }
        .toc li {
            margin-bottom: 15px;
        }
        .toc a {
            display: block;
            padding: 12px 15px;
            background-color: rgba(255, 255, 255, 0.03);
            border-radius: 8px;
            border-left: 3px solid transparent;
        }
        .toc a:hover {
            background-color: rgba(124, 58, 237, 0.1);
            border-left-color: var(--primary);
        }
        .related-links {
            margin-top: 30px;
        }
        .related-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 0;
            border-bottom: 1px solid #334155;
        }
        .related-links a:last-child {
            border-bottom: none;
        }
        .related-links i {
            color: var(--primary);
        }
        footer {
            background-color: #0a0f1c;
            padding: 60px 0 30px;
            border-top: 1px solid #334155;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: 20px;
        }
        .footer-about {
            color: #94a3b8;
        }
        friend-link {
            display: block;
            margin-top: 20px;
            padding: 15px;
            background-color: rgba(255, 255, 255, 0.03);
            border-radius: var(--border-radius);
            border: 1px dashed #475569;
            color: #cbd5e1;
        }
        friend-link a {
            color: var(--secondary);
            font-weight: 600;
        }
        .footer-heading {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-heading::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background-color: var(--primary);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 15px;
        }
        .footer-links a {
            color: #94a3b8;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #334155;
            color: #64748b;
            font-size: 0.95rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .divider {
            height: 1px;
            background-color: #334155;
            margin: 40px 0;
        }
        .tag {
            display: inline-block;
            background-color: rgba(124, 58, 237, 0.2);
            color: var(--primary);
            padding: 5px 15px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-right: 10px;
            margin-bottom: 10px;
        }
        @media (max-width: 768px) {
            .header-container, article, aside, .interactive-section {
                padding-left: 20px;
                padding-right: 20px;
            }
            article {
                padding: 25px 20px;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
        }