* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a5276;
            --secondary: #e74c3c;
            --accent: #f39c12;
            --dark: #2c3e50;
            --light: #ecf0f1;
            --gray: #95a5a6;
            --success: #27ae60;
            --shadow: rgba(0, 0, 0, 0.1);
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f9f9f9;
            color: #333;
            line-height: 1.7;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark), var(--primary));
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color 0.3s;
        }
        .logo a:hover {
            color: var(--accent);
        }
        .logo i {
            color: var(--accent);
        }
        .my-logo {
            font-style: italic;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .breadcrumb {
            padding: 15px 0 5px;
            font-size: 0.9rem;
            color: var(--light);
        }
        .breadcrumb a {
            color: var(--accent);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 30px 0;
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px var(--shadow);
            margin: 20px auto;
        }
        .article-header {
            text-align: center;
            padding-bottom: 30px;
            border-bottom: 3px dashed var(--gray);
            margin-bottom: 40px;
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: var(--gray);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .meta-info i {
            color: var(--accent);
        }
        .content-section {
            padding: 0 30px 40px;
        }
        h2 {
            color: var(--secondary);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        h3 {
            color: var(--primary);
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: var(--dark);
            font-size: 1.3rem;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 5px solid var(--accent);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .quote {
            font-style: italic;
            color: var(--primary);
            font-size: 1.2rem;
            text-align: center;
            padding: 25px;
            margin: 30px auto;
            max-width: 800px;
            background: #f0f8ff;
            border-radius: 10px;
            position: relative;
        }
        .quote::before, .quote::after {
            content: '"';
            font-size: 3rem;
            color: var(--gray);
            position: absolute;
            opacity: 0.3;
        }
        .quote::before {
            top: 5px;
            left: 20px;
        }
        .quote::after {
            bottom: -15px;
            right: 20px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 25px auto;
            border-radius: 10px;
            box-shadow: 0 8px 16px var(--shadow);
            transition: transform 0.4s;
        }
        img:hover {
            transform: scale(1.02);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: -15px;
            margin-bottom: 30px;
        }
        .interactive-box {
            background: linear-gradient(145deg, #f0f8ff, #e6f2ff);
            border-radius: 12px;
            padding: 30px;
            margin: 40px 0;
            box-shadow: 0 6px 12px var(--shadow);
        }
        .interactive-box h3 {
            margin-top: 0;
        }
        form {
            display: grid;
            gap: 20px;
            margin-top: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        label {
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--dark);
        }
        input, textarea, select {
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: var(--primary);
            outline: none;
        }
        .rating {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover, .star.active {
            color: var(--accent);
        }
        button {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(52, 152, 219, 0.3);
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 30px 0;
        }
        .link-item {
            background: white;
            border-left: 5px solid var(--primary);
            padding: 15px;
            border-radius: 5px;
            box-shadow: 0 3px 8px var(--shadow);
            transition: transform 0.3s;
        }
        .link-item:hover {
            transform: translateX(5px);
        }
        .link-item a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .link-item a:hover {
            text-decoration: underline;
        }
        .link-item i {
            color: var(--secondary);
            margin-right: 10px;
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h4 {
            color: var(--accent);
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.1);
            padding: 15px;
            border-radius: 8px;
            margin: 10px 0;
        }
        friend-link a {
            color: var(--accent);
            font-weight: 600;
            text-decoration: none;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #bbb;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .content-section { padding: 0 20px 30px; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            nav {
                display: none;
                width: 100%;
                order: 3;
                margin-top: 15px;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 0;
            }
            nav li {
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            nav a {
                padding: 15px;
                justify-content: center;
            }
            .header-top {
                flex-direction: column;
                align-items: flex-start;
            }
            .logo {
                width: 100%;
                display: flex;
                justify-content: space-between;
                align-items: center;
            }
            h1 { font-size: 2rem; }
            .link-list { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            h1 { font-size: 1.8rem; }
            .interactive-box { padding: 20px; }
            .meta-info { flex-direction: column; align-items: center; gap: 10px; }
        }
        .bold { font-weight: 700; }
        .emoji { font-size: 1.2em; }
        .text-center { text-align: center; }
        .mt-4 { margin-top: 2rem; }
        .mb-4 { margin-bottom: 2rem; }
        .flex {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }