:root {
            --primary: #2a5caa;
            --secondary: #f8c300;
            --accent: #e63946;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --transition: all 0.3s ease;
            --shadow: 0 5px 15px rgba(0,0,0,0.1);
            --border-radius: 12px;
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            min-height: 100vh;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(to right, var(--dark), var(--primary));
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: var(--secondary);
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            transition: var(--transition);
        }
        .my-logo:hover {
            color: white;
            transform: scale(1.05);
        }
        .my-logo span {
            color: var(--accent);
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-links a:hover {
            background-color: rgba(255,255,255,0.15);
            color: var(--secondary);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: rgba(255,255,255,0.1);
            padding: 0.8rem 20px;
            font-size: 0.9rem;
            margin-top: 0.5rem;
        }
        .breadcrumb a {
            color: var(--secondary);
            text-decoration: none;
        }
        .breadcrumb span {
            color: #ccc;
            margin: 0 0.5rem;
        }
        main {
            padding: 2rem 0;
        }
        article {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 3rem;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid var(--secondary);
            padding-left: 1rem;
        }
        h2 {
            color: var(--dark);
            font-size: 2.2rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            color: var(--primary);
            font-size: 1.7rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: var(--gray);
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .intro {
            font-size: 1.2rem;
            color: var(--dark);
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin-bottom: 2rem;
            border-left: 4px solid var(--secondary);
        }
        .highlight {
            background-color: #fffacd;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            border: 1px dashed var(--secondary);
        }
        .highlight strong {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 2rem auto;
            display: block;
        }
        .float-right {
            float: right;
            margin: 1rem 0 1rem 2rem;
            max-width: 50%;
        }
        .clearfix::after {
            content: "";
            clear: both;
            display: table;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.8rem;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
            border-bottom: 1px dotted transparent;
        }
        a:hover {
            color: var(--accent);
            border-bottom: 1px dotted var(--accent);
        }
        .internal-link {
            font-weight: 600;
            color: #2a5caa;
            background-color: #f0f8ff;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
        }
        .internal-link:hover {
            background-color: #e1f0ff;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .search-box {
            background: linear-gradient(to right, #e3f2fd, #bbdefb);
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 3rem 0;
            text-align: center;
        }
        .search-box form {
            display: flex;
            max-width: 600px;
            margin: 1rem auto 0;
        }
        .search-box input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid var(--primary);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            outline: none;
        }
        .search-box button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .search-box button:hover {
            background-color: #1d4a8a;
        }
        .user-interaction {
            background-color: #f8f9fa;
            border-radius: var(--border-radius);
            padding: 2.5rem;
            margin: 3rem 0;
            border: 1px solid #dee2e6;
        }
        .rating-section, .comment-section {
            margin-bottom: 2.5rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--secondary);
        }
        .comment-section textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #ced4da;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
            min-height: 150px;
            margin: 1rem 0;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, var(--primary), #3a6cca);
            color: white;
            padding: 0.9rem 2.2rem;
            border: none;
            border-radius: 50px;
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
            text-align: center;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(42, 92, 170, 0.3);
            background: linear-gradient(to right, #1d4a8a, #2a5caa);
        }
        .btn-secondary {
            background: linear-gradient(to right, var(--gray), #7a8289);
        }
        .btn-secondary:hover {
            background: linear-gradient(to right, #5a6268, #6c757d);
        }
        .update-time {
            text-align: right;
            font-style: italic;
            color: var(--gray);
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #eee;
        }
        footer {
            background: linear-gradient(to right, var(--dark), #2a2a4e);
            color: white;
            padding: 3rem 0 2rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: var(--secondary);
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 0.5rem;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin-bottom: 1rem;
        }
        friend-link a {
            color: var(--secondary);
            font-weight: bold;
            font-size: 1.1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .my-logo {
                margin-bottom: 1rem;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.2rem;
                right: 20px;
            }
            nav {
                width: 100%;
                display: none;
            }
            .nav-active {
                display: block;
            }
            .nav-links {
                flex-direction: column;
                gap: 0;
                width: 100%;
                margin-top: 1rem;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links a {
                padding: 1rem;
                border-bottom: 1px solid rgba(255,255,255,0.1);
                border-radius: 0;
            }
            .float-right {
                float: none;
                margin: 1.5rem auto;
                max-width: 100%;
            }
            .search-box form {
                flex-direction: column;
            }
            .search-box input {
                border-radius: var(--border-radius);
                margin-bottom: 0.8rem;
            }
            .search-box button {
                border-radius: var(--border-radius);
                padding: 0.9rem;
            }
        }