* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #0c1a2d 0%, #152642 100%);
            color: #e0e7ff;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #4fc3f7;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: #29b6f6;
            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: rgba(10, 25, 47, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #1a3a5f;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #00e5ff, #2979ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .nav-list a {
            color: #bbdefb;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 6px;
        }
        .nav-list a:hover {
            background: rgba(41, 121, 255, 0.15);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: #4fc3f7;
            border-radius: 2px;
            transition: 0.3s;
        }
        .search-box {
            display: flex;
            margin-left: 30px;
        }
        .search-box input {
            padding: 10px 15px;
            border: 1px solid #2d4575;
            border-radius: 25px 0 0 25px;
            background: #0d1b36;
            color: #e0e7ff;
            width: 250px;
            outline: none;
        }
        .search-box button {
            background: linear-gradient(90deg, #2979ff, #00e5ff);
            border: none;
            border-radius: 0 25px 25px 0;
            color: white;
            padding: 10px 20px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s;
        }
        .search-box button:hover {
            background: linear-gradient(90deg, #1c6eff, #00bcd4);
        }
        .breadcrumb {
            padding: 15px 0;
            background: rgba(15, 30, 55, 0.7);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #90caf9;
        }
        .breadcrumb span {
            color: #b0bec5;
        }
        main {
            padding: 40px 0;
            background: rgba(13, 27, 54, 0.7);
            min-height: 100vh;
        }
        article {
            background: rgba(18, 35, 65, 0.8);
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 20, 60, 0.4);
            margin-bottom: 40px;
            border: 1px solid #2a3f6e;
        }
        h1 {
            font-size: 3rem;
            margin-bottom: 25px;
            background: linear-gradient(90deg, #00e5ff, #2979ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }
        h2 {
            font-size: 2.2rem;
            color: #81d4fa;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #2d4575;
        }
        h3 {
            font-size: 1.8rem;
            color: #29b6f6;
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: #4fc3f7;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: #bbdefb;
            font-weight: 500;
            margin-bottom: 30px;
            padding: 20px;
            background: rgba(41, 121, 255, 0.08);
            border-left: 5px solid #2979ff;
            border-radius: 0 8px 8px 0;
        }
        .highlight {
            background: rgba(255, 235, 59, 0.15);
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: bold;
            color: #fff59d;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 8px;
        }
        .article-img {
            width: 80%;
            margin: 30px auto;
            border-radius: 12px;
            overflow: hidden;
            border: 3px solid #2d4575;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
        }
        .article-img img {
            transition: transform 0.5s ease;
        }
        .article-img:hover img {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #90a4ae;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .content-links {
            background: rgba(30, 50, 90, 0.4);
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
            border-left: 5px solid #00e5ff;
        }
        .content-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 15px;
        }
        .content-links li {
            padding: 12px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            transition: all 0.3s;
        }
        .content-links li:hover {
            background: rgba(41, 121, 255, 0.2);
            transform: translateY(-3px);
        }
        .user-interaction {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 50px 0;
        }
        .interaction-box {
            background: rgba(20, 40, 80, 0.6);
            padding: 30px;
            border-radius: 12px;
            border: 1px solid #3d5a80;
        }
        .interaction-box h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interaction-box form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 8px;
            color: #bbdefb;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 12px 15px;
            border: 1px solid #3d5a80;
            border-radius: 8px;
            background: rgba(10, 25, 47, 0.7);
            color: #e0e7ff;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #00e5ff;
            box-shadow: 0 0 0 2px rgba(0, 229, 255, 0.2);
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ffd600;
            cursor: pointer;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        .submit-btn {
            background: linear-gradient(90deg, #2979ff, #00e5ff);
            color: white;
            border: none;
            padding: 15px;
            border-radius: 8px;
            font-weight: bold;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s;
        }
        .submit-btn:hover {
            background: linear-gradient(90deg, #1c6eff, #00bcd4);
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(0, 100, 255, 0.4);
        }
        footer {
            background: #0a192f;
            color: #b0bec5;
            padding: 50px 0 20px;
            border-top: 2px solid #1a3a5f;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            color: #4fc3f7;
            margin-bottom: 25px;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        friend-link {
            display: inline-block;
            background: rgba(41, 121, 255, 0.15);
            padding: 10px 20px;
            border-radius: 25px;
            margin: 5px;
            border: 1px solid #2979ff;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2d4575;
            font-size: 0.9rem;
            color: #90a4ae;
        }
        .last-updated {
            text-align: right;
            font-style: italic;
            color: #81c784;
            margin-top: 30px;
            padding-top: 15px;
            border-top: 1px dashed #4db6ac;
        }
        @media (max-width: 992px) {
            .nav-list {
                gap: 15px;
            }
            .search-box input {
                width: 200px;
            }
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.6rem; }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .main-nav .nav-list {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(10, 25, 47, 0.98);
                flex-direction: column;
                padding: 20px;
                border-top: 1px solid #1a3a5f;
                box-shadow: 0 10px 20px rgba(0,0,0,0.3);
            }
            .main-nav.active .nav-list {
                display: flex;
            }
            .search-box {
                margin-left: 0;
                margin-top: 20px;
                width: 100%;
            }
            .search-box input {
                width: 100%;
                border-radius: 25px;
            }
            .search-box button {
                border-radius: 25px;
                margin-top: 10px;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .article-img {
                width: 100%;
            }
            .content-links ul {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 576px) {
            article {
                padding: 25px;
            }
            .user-interaction {
                grid-template-columns: 1fr;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }