* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #0f1a26;
            color: #e0e0e0;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #4dabf7;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #74c0fc;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a2b3c 0%, #0f1a26 100%);
            padding: 1.2rem 0;
            border-bottom: 3px solid #2d4a6a;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ffd43b, #fcc419);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #c0c0c0;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
            font-size: 1.1rem;
        }
        .main-nav a:hover {
            color: #ffd43b;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #ffd43b;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #ffd43b;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #162636;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #8fa3bf;
        }
        .breadcrumb a:hover {
            color: #ffd43b;
        }
        .search-section {
            background-color: #1c2e42;
            padding: 2rem;
            border-radius: 12px;
            margin: 2rem auto;
            text-align: center;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            border-radius: 50px 0 0 50px;
            background-color: #2a3f5a;
            color: #fff;
            font-size: 1rem;
        }
        .search-btn {
            background: linear-gradient(90deg, #339af0, #1c7ed6);
            color: white;
            border: none;
            border-radius: 0 50px 50px 0;
            padding: 1rem 2rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .search-btn:hover {
            background: linear-gradient(90deg, #1c7ed6, #1971c2);
            transform: scale(1.03);
        }
        main {
            padding: 2rem 0;
        }
        article {
            background-color: #162636;
            border-radius: 16px;
            padding: 3rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 3.2rem;
            color: #ffd43b;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-align: center;
        }
        h2 {
            font-size: 2.4rem;
            color: #4dabf7;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #2d4a6a;
        }
        h3 {
            font-size: 1.8rem;
            color: #74c0fc;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #a5d8ff;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #2a3f5a;
            border-left: 5px solid #ffd43b;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.5rem;
        }
        .float-img {
            float: right;
            margin: 0 0 1.5rem 2rem;
            max-width: 45%;
            border-radius: 12px;
            box-shadow: 0 6px 12px rgba(0,0,0,0.6);
        }
        .clearfix::after {
            content: "";
            clear: both;
            display: table;
        }
        .user-feedback {
            background-color: #1c2e42;
            padding: 2.5rem;
            border-radius: 16px;
            margin-top: 3rem;
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.7rem;
            font-weight: 600;
            color: #c0c0c0;
        }
        .form-control {
            padding: 1rem;
            border-radius: 8px;
            border: 1px solid #3a506b;
            background-color: #2a3f5a;
            color: #fff;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .form-control:focus {
            outline: none;
            border-color: #4dabf7;
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.5rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #495057;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffd43b;
        }
        .submit-btn {
            background: linear-gradient(90deg, #40c057, #2f9e44);
            color: white;
            border: none;
            padding: 1.2rem 2.5rem;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 1.5rem;
        }
        .submit-btn:hover {
            background: linear-gradient(90deg, #2f9e44, #2b8a3e);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(47, 158, 68, 0.4);
        }
        footer {
            background-color: #0f1a26;
            padding: 3rem 0 2rem;
            border-top: 3px solid #2d4a6a;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ffd43b;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 1rem;
            padding: 0.8rem;
            background-color: #1c2e42;
            border-radius: 8px;
            transition: transform 0.3s ease, background-color 0.3s ease;
        }
        friend-link:hover {
            transform: translateX(10px);
            background-color: #2a3f5a;
        }
        friend-link a {
            color: #a5d8ff;
            font-weight: 600;
            display: block;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2d4a6a;
            color: #8fa3bf;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.1rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            .main-nav {
                display: none;
                width: 100%;
                order: 3;
                margin-top: 1.5rem;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1rem;
            }
            .hamburger {
                display: block;
            }
            .float-img {
                float: none;
                margin: 1.5rem auto;
                max-width: 90%;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 576px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .search-form { flex-direction: column; }
            .search-input, .search-btn { border-radius: 50px; width: 100%; }
            .search-input { margin-bottom: 1rem; }
        }