:root {
            --primary: #4361ee;
            --secondary: #3a0ca3;
            --accent: #4cc9f0;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --success: #4ade80;
            --warning: #f59e0b;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 12px;
            --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: #fefefe;
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--accent);
            transform: translateY(-2px);
        }
        .my-logo i {
            color: var(--accent);
        }
        nav {
            display: flex;
            gap: 2rem;
        }
        nav a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        nav a:hover,
        nav a.active {
            color: white;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--accent);
            transition: width 0.3s;
        }
        nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--secondary);
            padding: 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-nav.active {
            display: flex;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .breadcrumb a {
            color: var(--accent);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 3rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        article {
            background: white;
            border-radius: var(--radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 2px solid var(--light);
            padding-bottom: 1.5rem;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--secondary);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta {
            display: flex;
            gap: 1.5rem;
            color: var(--gray);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }
        .meta i {
            margin-right: 0.5rem;
        }
        .intro {
            font-size: 1.2rem;
            color: var(--dark);
            background: linear-gradient(to right, #f0f4ff, #e3f2fd);
            padding: 1.5rem;
            border-radius: var(--radius);
            border-left: 5px solid var(--primary);
            margin-bottom: 2.5rem;
        }
        h2 {
            color: var(--primary);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px dashed #e9ecef;
            font-size: 2rem;
        }
        h3 {
            color: var(--secondary);
            margin: 2rem 0 1rem;
            font-size: 1.6rem;
        }
        h4 {
            color: #495057;
            margin: 1.8rem 0 1rem;
            font-size: 1.3rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(120deg, #ffecb3 0%, #ffecb3 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .block-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--radius);
            margin: 2rem auto;
            display: block;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
            transition: var(--transition);
        }
        .block-img:hover {
            transform: scale(1.01);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .content-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--primary);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--secondary);
            border-bottom-style: solid;
        }
        blockquote {
            border-left: 4px solid var(--accent);
            padding: 1.5rem 2rem;
            background: #f8fcff;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-style: italic;
        }
        blockquote i {
            color: var(--accent);
            font-size: 1.5rem;
            margin-right: 1rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .stat {
            background: white;
            border-radius: var(--radius);
            padding: 1.5rem;
            text-align: center;
            box-shadow: var(--shadow);
            border-top: 5px solid var(--primary);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .stat-label {
            color: var(--gray);
            font-size: 0.95rem;
            margin-top: 0.5rem;
        }
        .tip {
            background: #e7f5ff;
            border-left: 5px solid var(--accent);
            padding: 1.5rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 2rem 0;
        }
        .tip strong {
            color: var(--secondary);
        }
        aside {
            position: sticky;
            top: 120px;
            height: fit-content;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--radius);
            padding: 1.8rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.4rem;
            color: var(--secondary);
            margin-bottom: 1.5rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid #f1f3f5;
        }
        .search-box {
            display: flex;
            margin-bottom: 2rem;
        }
        #search-input {
            flex: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #e9ecef;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        #search-input:focus {
            outline: none;
            border-color: var(--primary);
        }
        #search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        #search-btn:hover {
            background: var(--secondary);
        }
        .quick-links ul {
            margin: 0;
            list-style: none;
        }
        .quick-links li {
            margin-bottom: 0.8rem;
        }
        .quick-links a {
            color: var(--dark);
            text-decoration: none;
            padding: 0.7rem 1rem;
            display: block;
            border-radius: 8px;
            transition: var(--transition);
            border-left: 3px solid transparent;
        }
        .quick-links a:hover {
            background: #f1f5f9;
            border-left-color: var(--primary);
            padding-left: 1.5rem;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #ffc107;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars i {
            transition: var(--transition);
            margin: 0 3px;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        #rating-form {
            display: none;
            margin-top: 1.5rem;
        }
        #rating-form.active {
            display: block;
        }
        textarea, input[type="text"] {
            width: 100%;
            padding: 0.9rem;
            border: 2px solid #e9ecef;
            border-radius: var(--radius);
            margin-bottom: 1rem;
            font-size: 1rem;
            transition: var(--transition);
        }
        textarea:focus, input[type="text"]:focus {
            outline: none;
            border-color: var(--primary);
        }
        .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
            text-align: center;
            text-decoration: none;
            font-size: 1rem;
        }
        .btn:hover {
            background: var(--secondary);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(67, 97, 238, 0.2);
        }
        .btn-block {
            display: block;
            width: 100%;
        }
        .comments-section {
            margin-top: 4rem;
            padding-top: 2.5rem;
            border-top: 2px solid #f1f3f5;
        }
        .comment {
            background: #fafafa;
            border-radius: var(--radius);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            border-left: 4px solid #e9ecef;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 1rem;
            color: var(--gray);
            font-size: 0.9rem;
        }
        .comment-author {
            color: var(--secondary);
            font-weight: 600;
        }
        footer {
            background: linear-gradient(to right, var(--secondary), #2a0a7a);
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-logo {
            font-size: 2.2rem;
            font-weight: 900;
            margin-bottom: 1rem;
            color: white;
        }
        .footer-about {
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
        }
        .footer-links h3,
        .footer-contact h3 {
            font-size: 1.4rem;
            margin-bottom: 1.5rem;
            color: white;
        }
        .footer-links ul {
            list-style: none;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin-bottom: 1rem;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(5px);
        }
        friend-link a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
        }
        @media (max-width: 1024px) {
            main {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .header-top {
                padding: 1rem 0;
            }
            article {
                padding: 1.8rem;
            }
            .stats-box {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            article {
                padding: 1.5rem;
            }
            .meta {
                flex-direction: column;
                gap: 0.5rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }