* {
            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, #f5f7fa 0%, #c3cfe2 100%);
            padding: 0;
            margin: 0;
        }
        a {
            text-decoration: none;
            color: #1a73e8;
        }
        a:hover {
            color: #0d47a1;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: #1a237e;
            color: #fff;
            padding: 20px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: bold;
            color: #ffeb3b;
            text-transform: uppercase;
            letter-spacing: 2px;
            transition: transform 0.3s;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: #fff;
            border-radius: 2px;
        }
        nav ul {
            display: flex;
            gap: 30px;
        }
        nav a {
            color: #fff;
            font-weight: 600;
            padding: 10px 15px;
            border-radius: 5px;
            transition: background 0.3s, color 0.3s;
        }
        nav a:hover {
            background: #3949ab;
            color: #ffeb3b;
        }
        .breadcrumb {
            margin-top: 15px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #bbdefb;
        }
        .breadcrumb a:hover {
            color: #ffeb3b;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            padding: 30px 0;
        }
        .content {
            background: #fff;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .sidebar {
            background: #e8eaf6;
            padding: 20px;
            border-radius: 15px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.05);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #3949ab;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 3px solid #ffeb3b;
        }
        h3 {
            font-size: 1.5rem;
            color: #5c6bc0;
            margin: 20px 0 10px;
        }
        h4 {
            font-size: 1.2rem;
            color: #7986cb;
            margin: 15px 0 8px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .highlight {
            background: #fff9c4;
            padding: 15px;
            border-left: 5px solid #ffeb3b;
            margin: 20px 0;
            font-style: italic;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 20px 0;
            box-shadow: 0 6px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }
        img:hover {
            transform: scale(1.02);
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 20px 0;
        }
        .link-list a {
            background: #e3f2fd;
            padding: 10px 20px;
            border-radius: 25px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .link-list a:hover {
            background: #bbdefb;
            transform: translateY(-3px);
        }
        form {
            background: #f5f5f5;
            padding: 20px;
            border-radius: 10px;
            margin: 20px 0;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px;
            margin: 10px 0;
            border: 2px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #1a73e8;
            outline: none;
        }
        button {
            background: #1a237e;
            color: #fff;
            padding: 12px 30px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: bold;
            transition: background 0.3s, transform 0.3s;
        }
        button:hover {
            background: #3949ab;
            transform: translateY(-2px);
        }
        footer {
            background: #1a237e;
            color: #fff;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        friend-link {
            display: block;
            margin: 10px 0;
        }
        friend-link a {
            color: #bbdefb;
            padding: 5px 10px;
            border-radius: 5px;
            transition: background 0.3s;
        }
        friend-link a:hover {
            background: #3949ab;
            color: #ffeb3b;
        }
        .copyright {
            text-align: center;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #3949ab;
            font-size: 0.9rem;
            color: #bbdefb;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .hamburger {
                display: flex;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #3949ab;
                padding: 20px;
                border-radius: 10px;
                margin-top: 20px;
            }
            nav ul.active {
                display: flex;
            }
            main {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .link-list {
                flex-direction: column;
            }
        }
        .last-updated {
            font-size: 0.9rem;
            color: #666;
            text-align: right;
            margin-bottom: 20px;
        }
        .rating {
            display: flex;
            gap: 10px;
            align-items: center;
            margin: 15px 0;
        }
        .star {
            color: #ffc107;
            font-size: 1.5rem;
            cursor: pointer;
            transition: color 0.3s;
        }
        .star:hover {
            color: #ff9800;
        }