* {
            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-color: #f9f9f9;
            padding-top: 80px; 
        }
        a {
            color: #2a9d8f;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e76f51;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: #264653;
            color: white;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 700;
            color: #e9c46a;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: #f4a261;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 25px;
        }
        .nav-links a {
            color: white;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
        }
        .nav-links a:hover {
            background-color: #2a9d8f;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9c46a;
            padding: 10px 20px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #264653;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            background-color: white;
            padding: 30px 20px;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin: 20px auto;
        }
        article {
            max-width: 900px;
            margin: 0 auto;
        }
        h1 {
            font-size: 2.8rem;
            color: #264653;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #2a9d8f;
            margin-top: 40px;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e9c46a;
        }
        h3 {
            font-size: 1.5rem;
            color: #e76f51;
            margin-top: 30px;
            margin-bottom: 10px;
        }
        h4 {
            font-size: 1.2rem;
            color: #f4a261;
            margin-top: 20px;
            margin-bottom: 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff3cd;
            padding: 15px;
            border-left: 4px solid #ffc107;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .image-container {
            text-align: center;
            margin: 30px 0;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
        }
        .caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .link-list {
            background-color: #f8f9fa;
            padding: 20px;
            border-radius: 8px;
            margin: 25px 0;
        }
        .link-list ul {
            list-style-type: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
        }
        .link-list li {
            padding: 10px;
            background-color: white;
            border-radius: 6px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .update-time {
            font-size: 0.9rem;
            color: #888;
            text-align: right;
            margin-top: 30px;
            padding-top: 15px;
            border-top: 1px solid #eee;
        }
        .functional-section {
            margin: 40px 0;
            padding: 25px;
            background-color: #e9f5f3;
            border-radius: 10px;
            border: 1px solid #2a9d8f;
        }
        .functional-section h3 {
            color: #264653;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 15px;
            max-width: 600px;
            margin-top: 15px;
        }
        input, textarea, select {
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            font-family: inherit;
        }
        button {
            padding: 12px 24px;
            background-color: #2a9d8f;
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: background-color 0.3s ease;
        }
        button:hover {
            background-color: #21867a;
        }
        .rating {
            display: flex;
            gap: 10px;
            align-items: center;
            margin-top: 10px;
        }
        .star {
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        footer {
            background-color: #264653;
            color: white;
            padding: 40px 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        .footer-section h4 {
            color: #e9c46a;
            margin-bottom: 15px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: #f4a261;
        }
        friend-link {
            display: block;
            background-color: #2a9d8f;
            padding: 15px;
            border-radius: 6px;
            margin-top: 10px;
            font-weight: bold;
        }
        friend-link a {
            color: white;
        }
        .copyright {
            text-align: center;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #3a5a6d;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            body {
                padding-top: 70px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #264653;
                padding: 20px;
                box-shadow: 0 8px 16px rgba(0,0,0,0.2);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links li {
                margin: 10px 0;
                margin-left: 0;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                padding: 12px 20px;
            }
            .breadcrumb {
                padding: 8px 20px;
                font-size: 0.8rem;
            }
            .link-list ul {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        @media print {
            header, footer, .functional-section, .breadcrumb {
                display: none;
            }
            body {
                padding-top: 0;
                background: white;
                color: black;
            }
            main {
                box-shadow: none;
                padding: 0;
            }
        }