* {
            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 {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a1a2e, #16213e);
            color: #fff;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            font-family: 'Georgia', serif;
            color: #ffd700;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(to right, #ffd700, #ff8c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: #fff;
        }
        nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-grow: 1;
            margin-left: 30px;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-links a {
            color: #e0e0e0;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
            transition: all 0.3s ease;
            position: relative;
        }
        .nav-links a:hover {
            color: #ffd700;
            background: rgba(255, 215, 0, 0.1);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: #ffd700;
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }
        .nav-links a:hover::after {
            width: 80%;
        }
        .breadcrumb {
            padding: 10px 20px;
            background: rgba(255, 255, 255, 0.05);
            font-size: 0.9rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .breadcrumb a {
            color: #ffd700;
        }
        .breadcrumb span {
            color: #ccc;
            margin: 0 5px;
        }
        main {
            background: #fff;
            margin: 20px auto;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            padding: 30px;
        }
        h1 {
            font-size: 3rem;
            color: #1a1a2e;
            margin-bottom: 20px;
            text-align: center;
            border-bottom: 4px solid #ffd700;
            padding-bottom: 15px;
            font-family: 'Georgia', serif;
        }
        h2 {
            font-size: 2.2rem;
            color: #16213e;
            margin: 40px 0 20px;
            padding-left: 10px;
            border-left: 6px solid #ff8c00;
        }
        h3 {
            font-size: 1.8rem;
            color: #333;
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: #555;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            line-height: 1.8;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            font-weight: 500;
            color: #444;
            background: #f0f8ff;
            padding: 20px;
            border-radius: 10px;
            border-left: 5px solid #4b8bbe;
            margin-bottom: 30px;
        }
        .highlight {
            background: linear-gradient(120deg, #ffd70030 0%, #ffd70010 100%);
            padding: 15px;
            border-radius: 8px;
            border: 1px dashed #ff8c00;
            margin: 25px 0;
        }
        .bold {
            font-weight: 800;
            color: #1a1a2e;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .article-img {
            width: 80%;
            margin: 30px auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
            transition: transform 0.5s ease;
        }
        .article-img:hover {
            transform: scale(1.02);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 30px 0;
            padding: 20px;
            background: #f8f9fa;
            border-radius: 10px;
        }
        .link-list a {
            color: #1a73e8;
            padding: 10px;
            border-radius: 5px;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .link-list a:hover {
            background: #e8f0fe;
            color: #0d47a1;
            transform: translateX(5px);
        }
        .link-list i {
            color: #ff8c00;
        }
        .last-updated {
            text-align: right;
            font-size: 0.9rem;
            color: #888;
            margin-bottom: 30px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        .functional-section {
            background: #f1f8ff;
            padding: 25px;
            border-radius: 12px;
            margin: 40px 0;
            border: 1px solid #cce7ff;
        }
        .functional-section h3 {
            color: #1a73e8;
            border-bottom: 2px solid #1a73e8;
            padding-bottom: 10px;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        label {
            font-weight: 600;
            color: #444;
        }
        input, textarea, select {
            padding: 12px 15px;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #1a73e8;
            outline: none;
            box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
        }
        button {
            padding: 14px 25px;
            background: linear-gradient(to right, #ff8c00, #ffd700);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            align-self: flex-start;
        }
        button:hover {
            background: linear-gradient(to right, #e67e00, #e6c200);
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(255, 140, 0, 0.3);
        }
        .rating {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
        }
        .star:hover,
        .star.active {
            color: #ffd700;
        }
        footer {
            background: #1a1a2e;
            color: #fff;
            padding: 40px 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-section h4 {
            color: #ffd700;
            font-size: 1.3rem;
            margin-bottom: 20px;
            border-bottom: 2px solid #ff8c00;
            padding-bottom: 10px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ccc;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: #ffd700;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 215, 0, 0.1);
            padding: 15px;
            border-radius: 8px;
            margin: 15px 0;
            border: 1px solid #ffd700;
        }
        friend-link a {
            color: #ffd700;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.6rem; }
            .nav-links { gap: 15px; }
        }
        @media (max-width: 768px) {
            body { padding-top: 70px; }
            .header-top { flex-wrap: wrap; }
            .hamburger {
                display: block;
                order: 1;
            }
            nav {
                order: 3;
                width: 100%;
                margin-left: 0;
                display: none;
                margin-top: 15px;
            }
            nav.active {
                display: block;
            }
            .nav-links {
                flex-direction: column;
                gap: 10px;
                background: rgba(26, 26, 46, 0.95);
                padding: 20px;
                border-radius: 10px;
            }
            .my-logo { font-size: 2rem; }
            main { padding: 20px; }
            .article-img { width: 100%; }
            .link-list { grid-template-columns: 1fr; }
            .footer-content { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .functional-section { padding: 20px; }
            button { align-self: stretch; }
        }