* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f1419;
            color: #d0d0d0;
            line-height: 1.7;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-primary {
            color: #ff9f1c;
        }
        .text-danger {
            color: #e63946;
        }
        .text-success {
            color: #2a9d8f;
        }
        .bg-dark {
            background-color: #1a2029;
        }
        .bg-darker {
            background-color: #0c1017;
        }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .py-3 { padding-top: 3rem; padding-bottom: 3rem; }
        .my-3 { margin-top: 3rem; margin-bottom: 3rem; }
        .text-center { text-align: center; }
        .site-header {
            background: linear-gradient(135deg, #1a2029 0%, #0c1017 100%);
            border-bottom: 2px solid #2a3a50;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 20px;
        }
        .my-logo a {
            font-size: 1.8rem;
            font-weight: 800;
            text-decoration: none;
            background: linear-gradient(90deg, #ff9f1c, #e63946);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -0.5px;
        }
        .my-logo a:hover {
            opacity: 0.9;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: #b8c2cc;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            transition: color 0.3s;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-desktop a:hover {
            color: #ff9f1c;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #ff9f1c;
            transition: width 0.3s;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #d0d0d0;
            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: #1a2029;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            border-top: 1px solid #2a3a50;
            z-index: 999;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: #b8c2cc;
            text-decoration: none;
            padding: 1rem;
            border-bottom: 1px solid #2a3a50;
            font-weight: 600;
        }
        .nav-mobile a:hover {
            background-color: #252f3d;
            color: #ff9f1c;
        }
        .breadcrumb {
            padding: 1rem 20px;
            background-color: #141a23;
            font-size: 0.9rem;
            border-bottom: 1px solid #2a3a50;
        }
        .breadcrumb a {
            color: #8a9ba8;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: #ff9f1c;
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #d0d0d0;
            margin: 0 0.5rem;
        }
        .hero {
            background: linear-gradient(rgba(10, 15, 25, 0.85), rgba(10, 15, 25, 0.9)), url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') no-repeat center center/cover;
            padding: 4rem 1rem;
            text-align: center;
            border-bottom: 3px solid #2a3a50;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            color: #fff;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            color: #ccc;
        }
        .search-section {
            padding: 2rem 0;
            background-color: #141a23;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            border: 2px solid #2a3a50;
            background: #0f1419;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            background: transparent;
            color: #fff;
            font-size: 1rem;
            outline: none;
        }
        .search-button {
            background: linear-gradient(90deg, #2a3a50, #3a4a60);
            color: white;
            border: none;
            padding: 1rem 2rem;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-button:hover {
            background: linear-gradient(90deg, #3a4a60, #4a5a70);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 3rem 0;
        }
        @media (max-width: 1024px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-body {
            font-size: 1.1rem;
        }
        .article-body h2 {
            font-size: 2.2rem;
            color: #ff9f1c;
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #2a3a50;
        }
        .article-body h3 {
            font-size: 1.8rem;
            color: #e63946;
            margin: 2.5rem 0 1rem;
        }
        .article-body h4 {
            font-size: 1.5rem;
            color: #2a9d8f;
            margin: 2rem 0 1rem;
        }
        .article-body p {
            margin-bottom: 1.8rem;
            text-align: justify;
            color: #c0c8d0;
        }
        .article-body strong {
            color: #ffcc5c;
            font-weight: 700;
        }
        .article-body em {
            color: #a3be8c;
            font-style: italic;
        }
        .article-body ul, .article-body ol {
            margin-left: 2rem;
            margin-bottom: 1.8rem;
            color: #c0c8d0;
        }
        .article-body li {
            margin-bottom: 0.8rem;
        }
        .article-body a {
            color: #5dade2;
            text-decoration: none;
            border-bottom: 1px dotted #5dade2;
            transition: color 0.3s;
        }
        .article-body a:hover {
            color: #ff9f1c;
            border-bottom-color: #ff9f1c;
        }
        .image-block {
            margin: 3rem 0;
            border: 3px solid #2a3a50;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.5);
        }
        .image-caption {
            padding: 1rem;
            background-color: #1a2029;
            font-style: italic;
            color: #8a9ba8;
            text-align: center;
        }
        .info-box {
            background: linear-gradient(135deg, #1a2b3c 0%, #2a3a50 100%);
            border-left: 5px solid #ff9f1c;
            padding: 2rem;
            margin: 2.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .info-box h4 {
            margin-top: 0;
            color: #ffcc5c;
        }
        .sidebar {
            background-color: #141a23;
            border-radius: 8px;
            padding: 2rem;
            align-self: start;
            position: sticky;
            top: 120px;
            border: 1px solid #2a3a50;
        }
        .sidebar h3 {
            color: #ff9f1c;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #2a3a50;
        }
        .sidebar ul {
            list-style: none;
            margin-left: 0;
        }
        .sidebar li {
            margin-bottom: 1rem;
        }
        .sidebar a {
            color: #b8c2cc;
            text-decoration: none;
            display: block;
            padding: 0.75rem;
            border-radius: 4px;
            transition: all 0.3s;
            border-left: 3px solid transparent;
        }
        .sidebar a:hover {
            background-color: #1a2029;
            border-left-color: #ff9f1c;
            color: #ffcc5c;
        }
        .interaction-module {
            background-color: #141a23;
            border-radius: 8px;
            padding: 2.5rem;
            margin: 3rem 0;
            border: 1px solid #2a3a50;
        }
        .module-title {
            color: #ff9f1c;
            margin-bottom: 1.5rem;
            font-size: 1.8rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }
        .star {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ff9f1c;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 1rem;
            margin-bottom: 1rem;
            background-color: #0f1419;
            border: 1px solid #2a3a50;
            border-radius: 4px;
            color: #fff;
            font-size: 1rem;
        }
        .comment-form button {
            background: linear-gradient(90deg, #e63946, #ff9f1c);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: transform 0.3s;
        }
        .comment-form button:hover {
            transform: translateY(-2px);
        }
        .site-footer {
            background-color: #0c1017;
            padding: 3rem 0 2rem;
            border-top: 3px solid #2a3a50;
            margin-top: 4rem;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ff9f1c;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section li {
            margin-bottom: 0.8rem;
        }
        .footer-section a {
            color: #8a9ba8;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-section a:hover {
            color: #ff9f1c;
            text-decoration: underline;
        }
        friend-link {
            display: block;
            padding: 1rem;
            background-color: #141a23;
            border-radius: 4px;
            margin: 1rem 0;
            border-left: 4px solid #2a9d8f;
        }
        friend-link a {
            color: #5dade2;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2a3a50;
            color: #8a9ba8;
            font-size: 0.9rem;
        }
        .update-time {
            color: #a3be8c;
            font-style: italic;
            margin-top: 1rem;
        }