* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            min-height: 100vh;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(26, 26, 46, 0.95);
            backdrop-filter: blur(10px);
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Fantasy', Papyrus, cursive;
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
            text-shadow: 0 0 15px rgba(255, 107, 107, 0.5);
        }
        .main-nav ul {
            display: flex;
            gap: 2rem;
            list-style: none;
        }
        .main-nav a {
            color: #f0f0f0;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 25px;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav a:hover {
            background: rgba(255, 107, 107, 0.2);
            color: #ff6b6b;
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: #f0f0f0;
            cursor: pointer;
            background: none;
            border: none;
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.1);
            padding: 1rem 0;
            margin-top: 1rem;
            border-radius: 10px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            padding: 0 20px;
        }
        .breadcrumb li {
            color: #a0a0a0;
        }
        .breadcrumb a {
            color: #4ecdc4;
            text-decoration: none;
            transition: color 0.3s;
        }
        .breadcrumb a:hover {
            color: #ff6b6b;
        }
        main {
            padding: 2rem 0;
        }
        .article-container {
            background: white;
            border-radius: 20px;
            padding: 3rem;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 3.2rem;
            color: #1a1a2e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-align: center;
            background: linear-gradient(45deg, #1a1a2e, #ff6b6b);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        h2 {
            font-size: 2.2rem;
            color: #16213e;
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #4ecdc4;
        }
        h3 {
            font-size: 1.8rem;
            color: #2d4059;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #4a648c;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .intro {
            font-size: 1.3rem;
            font-weight: 500;
            color: #2d4059;
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 15px;
            border-left: 5px solid #ff6b6b;
            margin-bottom: 3rem;
        }
        .highlight {
            background: linear-gradient(120deg, #fffbeb 0%, #fffbeb 100%);
            padding: 2rem;
            border-radius: 15px;
            border: 2px dashed #ff6b6b;
            margin: 2rem 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.5rem;
        }
        .content-link {
            color: #ff6b6b;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            border-bottom: 2px dotted transparent;
        }
        .content-link:hover {
            color: #1a1a2e;
            border-bottom: 2px dotted #ff6b6b;
        }
        .feature-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 15px;
            margin: 2rem 0;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
            transition: transform 0.5s ease;
        }
        .feature-image:hover {
            transform: scale(1.02);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
        }
        .interactive-section {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            padding: 2.5rem;
            border-radius: 20px;
            margin: 3rem 0;
            border: 2px solid #dee2e6;
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #2d4059;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 1rem;
            border: 2px solid #ced4da;
            border-radius: 10px;
            font-size: 1rem;
            transition: all 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #4ecdc4;
            box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.2);
        }
        .btn {
            background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.8rem;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 20px rgba(255, 107, 107, 0.4);
        }
        footer {
            background: #1a1a2e;
            color: #f0f0f0;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #ff6b6b;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            border-bottom: 2px solid #2d4059;
            padding-bottom: 0.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 1rem;
        }
        friend-link a {
            color: #a0a0a0;
            text-decoration: none;
            transition: color 0.3s;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        friend-link a:hover {
            color: #4ecdc4;
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2d4059;
            color: #a0a0a0;
            font-size: 0.9rem;
        }
        .update-time {
            background: #fffbeb;
            padding: 1rem;
            border-radius: 10px;
            text-align: center;
            margin: 2rem 0;
            font-weight: 600;
            color: #2d4059;
            border: 2px solid #ffd166;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            .article-container { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(26, 26, 46, 0.98);
                flex-direction: column;
                padding: 1rem;
                border-radius: 0 0 20px 20px;
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            }
            .main-nav ul.active {
                display: flex;
            }
            .main-nav a {
                padding: 1rem;
                justify-content: center;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .header-content {
                flex-wrap: wrap;
            }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.8rem; }
            .container { padding: 0 15px; }
            .article-container { padding: 1.5rem; }
            .interactive-section { padding: 1.5rem; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-container {
            animation: fadeIn 0.8s ease-out;
        }
        ::-webkit-scrollbar {
            width: 12px;
        }
        ::-webkit-scrollbar-track {
            background: #1a1a2e;
        }
        ::-webkit-scrollbar-thumb {
            background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
            border-radius: 6px;
        }
        ::selection {
            background: rgba(255, 107, 107, 0.3);
            color: #1a1a2e;
        }