* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f0f4f8;
            color: #333;
            line-height: 1.7;
            padding-top: 80px;
        }
        a {
            color: #2d87f0;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1a5fb4;
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1e3c72, #2a5298);
            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;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a:hover {
            text-decoration: none;
            color: #ffdd40;
        }
        .logo i {
            font-size: 2rem;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .desktop-nav a {
            color: white;
            font-weight: 600;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .desktop-nav a:hover {
            border-bottom-color: #ffdd40;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .mobile-nav {
            display: none;
            background-color: #2a5298;
            padding: 20px;
            flex-direction: column;
            gap: 15px;
            border-top: 1px solid #3a6bc5;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            font-weight: 600;
            padding: 10px;
            border-left: 4px solid transparent;
        }
        .mobile-nav a:hover {
            border-left-color: #ffdd40;
            background-color: rgba(255,255,255,0.1);
        }
        .breadcrumb {
            background-color: #e9f2fc;
            padding: 12px 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid #c5d7f2;
        }
        .breadcrumb a {
            color: #2d87f0;
        }
        .breadcrumb span {
            color: #666;
        }
        main {
            background-color: white;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            overflow: hidden;
            margin: 30px auto;
            padding: 40px;
        }
        @media (max-width: 768px) {
            main {
                padding: 25px 20px;
                margin: 20px auto;
            }
        }
        h1 {
            color: #1e3c72;
            font-size: 2.8rem;
            margin-bottom: 25px;
            line-height: 1.2;
            border-bottom: 3px solid #ffdd40;
            padding-bottom: 15px;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
        }
        h2 {
            color: #2a5298;
            font-size: 2rem;
            margin-top: 40px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed #c5d7f2;
        }
        h3 {
            color: #3a6bc5;
            font-size: 1.6rem;
            margin-top: 30px;
            margin-bottom: 15px;
        }
        h4 {
            color: #555;
            font-size: 1.3rem;
            margin-top: 25px;
            margin-bottom: 12px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            background-color: #f8fbff;
            padding: 20px;
            border-left: 5px solid #2d87f0;
            border-radius: 0 8px 8px 0;
            margin-bottom: 30px;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 4px 8px;
            border-radius: 4px;
            font-weight: bold;
            color: #b8860b;
        }
        .section-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 25px auto;
            display: block;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            border: 1px solid #ddd;
        }
        .quote {
            font-style: italic;
            border-left: 4px solid #ffdd40;
            padding-left: 20px;
            margin: 30px 0;
            color: #555;
            background-color: #fcf8e3;
            padding: 20px;
            border-radius: 0 8px 8px 0;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 15px;
            margin: 30px 0;
            padding: 20px;
            background-color: #f0f8ff;
            border-radius: 10px;
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px;
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 3px 6px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .link-list a:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.1);
            text-decoration: none;
        }
        .link-list i {
            color: #2d87f0;
        }
        .interactive-box {
            background: linear-gradient(to right, #f8fbff, #e9f2fc);
            border-radius: 12px;
            padding: 30px;
            margin: 40px 0;
            border: 1px solid #c5d7f2;
        }
        .interactive-box h3 {
            margin-top: 0;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 20px;
        }
        .search-form input, .comment-form input, .comment-form textarea, .rating-form select {
            flex: 1;
            min-width: 250px;
            padding: 12px 15px;
            border: 1px solid #b3c7e5;
            border-radius: 8px;
            font-size: 1rem;
        }
        .comment-form textarea {
            min-height: 120px;
            width: 100%;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #ffc107;
            margin: 10px 0;
        }
        .rating-stars i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        button {
            background: linear-gradient(to right, #2d87f0, #1a5fb4);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        button:hover {
            background: linear-gradient(to right, #1a5fb4, #2d87f0);
            transform: translateY(-2px);
        }
        footer {
            background-color: #1e3c72;
            color: #c5d7f2;
            padding: 40px 20px 20px;
            margin-top: 50px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-section h4 {
            color: #ffdd40;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #c5d7f2;
        }
        .footer-links a:hover {
            color: #ffdd40;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: 8px;
            margin-top: 10px;
        }
        friend-link a {
            color: #ffdd40;
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #2a5298;
            font-size: 0.9rem;
            color: #8fa8d6;
        }
        @media (max-width: 992px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 576px) {
            .link-list {
                grid-template-columns: 1fr;
            }
            .search-form input, .comment-form input, .comment-form textarea, .rating-form select {
                min-width: 100%;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .intro {
                font-size: 1.1rem;
            }
        }