* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo {
            font-size: 2rem;
            font-weight: bold;
            color: #FF6B35;
            text-decoration: none;
            display: flex;
            align-items: center;
        }
        .logo i {
            margin-right: 10px;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            padding: 10px 15px;
            border: 2px solid #ddd;
            border-radius: 25px;
            width: 300px;
            font-size: 1rem;
        }
        .search-btn {
            background: #FF6B35;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 25px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: #E55A2B;
        }
        nav {
            background: #2C3E50;
        }
        .nav-menu {
            display: flex;
            list-style: none;
            justify-content: center;
        }
        .nav-menu li {
            position: relative;
        }
        .nav-menu a {
            color: white;
            text-decoration: none;
            padding: 1rem 1.5rem;
            display: block;
            transition: background 0.3s;
        }
        .nav-menu a:hover {
            background: #34495E;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #FF6B35;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: #ECF0F1;
            padding: 1rem 0;
            margin-top: 80px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 10px;
        }
        .breadcrumb a {
            color: #666;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: #FF6B35;
        }
        main {
            background: white;
            margin: 20px 0;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            overflow: hidden;
        }
        .article-header {
            background: linear-gradient(135deg, #FF6B35, #F7931E);
            color: white;
            padding: 3rem 2rem;
            text-align: center;
        }
        .article-header h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-top: 1rem;
            opacity: 0.9;
        }
        .content-section {
            padding: 3rem 2rem;
        }
        .content-section h2 {
            color: #2C3E50;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #FF6B35;
            font-size: 2rem;
        }
        .content-section h3 {
            color: #34495E;
            margin: 1.5rem 0 1rem;
            font-size: 1.5rem;
        }
        .content-section p {
            margin-bottom: 1rem;
            text-align: justify;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .highlight-box {
            background: #FFF3E0;
            border-left: 4px solid #FF6B35;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .hat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }
        .hat-card {
            background: #F8F9FA;
            border-radius: 10px;
            padding: 1.5rem;
            text-align: center;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }
        .hat-card:hover {
            transform: translateY(-5px);
        }
        .hat-image {
            width: 100%;
            height: 200px;
            background: #ddd;
            border-radius: 8px;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: #666;
        }
        .rating-system {
            background: #F8F9FA;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #FFD700;
        }
        .comment-system {
            margin: 3rem 0;
        }
        .comment-form {
            background: #F8F9FA;
            padding: 2rem;
            border-radius: 10px;
            margin-bottom: 2rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
        }
        .form-control {
            width: 100%;
            padding: 10px;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        .submit-btn {
            background: #FF6B35;
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 25px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s;
        }
        .submit-btn:hover {
            background: #E55A2B;
        }
        .web-links {
            background: #2C3E50;
            padding: 3rem 2rem;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
        }
        .web-link {
            background: #34495E;
            padding: 1rem;
            border-radius: 5px;
            text-align: center;
        }
        .web-link a {
            color: white;
            text-decoration: none;
        }
        .web-link:hover {
            background: #3D566E;
        }
        footer {
            background: #1A252F;
            color: white;
            text-align: center;
            padding: 2rem;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 1rem;
            }
            .search-input {
                width: 100%;
            }
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #2C3E50;
            }
            .nav-menu.active {
                display: flex;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .hat-grid {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-in;
        }
        .text-center { text-align: center; }
        .text-bold { font-weight: bold; }
        .text-highlight { color: #FF6B35; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }