* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #e0e0e0;
            background-color: #1a1a2e;
            background-image: linear-gradient(to bottom, #0f3460, #1a1a2e);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #4fc3f7;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #29b6f6;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: rgba(13, 19, 33, 0.95);
            padding: 1rem 0;
            border-bottom: 3px solid #3949ab;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(5px);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', Gadget, sans-serif;
            font-size: 2.2rem;
            background: linear-gradient(90deg, #ff9800, #ffeb3b);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 0 10px rgba(255, 152, 0, 0.3);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        .nav-desktop a:hover {
            background-color: rgba(57, 73, 171, 0.3);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #0d1321;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            border-top: 1px solid #3949ab;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 0.8rem;
            border-bottom: 1px solid #2a2a3e;
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            color: #aaa;
            font-size: 0.9rem;
            background-color: rgba(255,255,255,0.05);
            border-radius: 5px;
            margin: 1rem 0;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:hover {
            color: #4fc3f7;
        }
        .breadcrumb i {
            margin: 0 8px;
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding: 2rem;
            background: linear-gradient(135deg, rgba(25, 118, 210, 0.2), rgba(156, 39, 176, 0.2));
            border-radius: 15px;
            border-left: 6px solid #ff9800;
        }
        h1 {
            font-size: 3.2rem;
            color: #fff;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.5rem;
            }
        }
        .article-meta {
            color: #bbb;
            font-style: italic;
            margin-top: 1rem;
        }
        .content-section {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        @media (max-width: 992px) {
            .content-section {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: rgba(30, 30, 46, 0.8);
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }
        h2 {
            font-size: 2.4rem;
            color: #4fc3f7;
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px dashed #3949ab;
        }
        h3 {
            font-size: 1.8rem;
            color: #81c784;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #ffb74d;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: rgba(255, 152, 0, 0.15);
            border-left: 4px solid #ff9800;
            padding: 1.2rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .featured-image {
            margin: 2.5rem auto;
            text-align: center;
            box-shadow: 0 15px 25px rgba(0,0,0,0.7);
            overflow: hidden;
            border-radius: 12px;
            transition: transform 0.5s ease;
        }
        .featured-image:hover {
            transform: scale(1.02);
        }
        .image-caption {
            font-size: 0.9rem;
            color: #aaa;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .sidebar {
            background-color: rgba(25, 25, 35, 0.9);
            padding: 1.8rem;
            border-radius: 12px;
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2rem;
        }
        .widget h3 {
            font-size: 1.4rem;
            color: #ff9800;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #444;
        }
        .link-list {
            list-style: none;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding-left: 1.2rem;
            position: relative;
        }
        .link-list li:before {
            content: '➤';
            color: #4fc3f7;
            position: absolute;
            left: 0;
        }
        .interactive-module {
            background: linear-gradient(to right, rgba(41, 128, 185, 0.2), rgba(142, 68, 173, 0.2));
            padding: 2rem;
            border-radius: 12px;
            margin: 3rem 0;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            margin-bottom: 1.5rem;
        }
        .module-title i {
            color: #ffeb3b;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: #ccc;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 0.9rem;
            border-radius: 8px;
            border: 1px solid #555;
            background-color: #2c2c3e;
            color: #fff;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .form-control:focus {
            outline: none;
            border-color: #4fc3f7;
            box-shadow: 0 0 0 3px rgba(79, 195, 247, 0.2);
        }
        .btn {
            padding: 0.9rem 2rem;
            background: linear-gradient(90deg, #2196f3, #0d47a1);
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: linear-gradient(90deg, #0d47a1, #1565c0);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(13, 71, 161, 0.4);
        }
        .rating {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: #ffeb3b;
        }
        .site-footer {
            background-color: #0d1321;
            color: #aaa;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 3px solid #3949ab;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #4fc3f7;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        friend-link {
            display: inline-block;
            background-color: rgba(255,255,255,0.05);
            padding: 0.8rem 1.2rem;
            margin: 0.3rem;
            border-radius: 6px;
            border: 1px solid #333;
            transition: all 0.3s ease;
        }
        friend-link:hover {
            background-color: rgba(57, 73, 171, 0.3);
            border-color: #4fc3f7;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #333;
            font-size: 0.9rem;
            color: #777;
        }
        .text-bold {
            font-weight: 800;
            color: #ffb74d;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .text-center {
            text-align: center;
        }
        .last-updated {
            background-color: rgba(255, 193, 7, 0.1);
            padding: 1rem;
            border-radius: 8px;
            margin: 2rem 0;
            font-size: 0.95rem;
            color: #ffd54f;
        }