* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f172a;
            color: #e2e8f0;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #60a5fa;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #38bdf8;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        section {
            padding: 60px 0;
        }
        h1, h2, h3, h4 {
            color: #fbbf24;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
        }
        h1 {
            font-size: 2.8rem;
            background: linear-gradient(90deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 1.5rem;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid #3b82f6;
            padding-left: 15px;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #7dd3fc;
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #cbd5e1;
            font-weight: 300;
        }
        .highlight {
            background-color: rgba(251, 191, 36, 0.15);
            border-left: 4px solid #fbbf24;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .term {
            color: #34d399;
            font-weight: 600;
        }
        .note {
            background-color: rgba(59, 130, 246, 0.1);
            border: 1px dashed #3b82f6;
            padding: 15px;
            border-radius: 8px;
            margin: 20px 0;
        }
        header {
            background-color: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #334155;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: 900;
            color: #fbbf24;
            text-shadow: 0 0 10px rgba(251, 191, 36, 0.5);
        }
        .logo span {
            color: #3b82f6;
        }
        .desktop-nav {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
        }
        .desktop-nav a {
            color: #cbd5e1;
            font-weight: 500;
            padding: 8px 0;
            position: relative;
        }
        .desktop-nav a:hover {
            color: #fbbf24;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #fbbf24;
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #fbbf24;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: #1e293b;
            padding: 20px;
            transform: translateY(-100%);
            opacity: 0;
            visibility: hidden;
            transition: all 0.4s ease;
            z-index: 999;
            box-shadow: 0 10px 15px rgba(0,0,0,0.3);
        }
        .mobile-nav.active {
            transform: translateY(0);
            opacity: 1;
            visibility: visible;
        }
        .mobile-nav a {
            display: block;
            padding: 15px;
            border-bottom: 1px solid #334155;
            color: #e2e8f0;
            font-size: 1.1rem;
        }
        .mobile-nav a:hover {
            background-color: #334155;
            color: #fbbf24;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #1e293b;
            border-bottom: 1px solid #334155;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #94a3b8;
        }
        .breadcrumb a:hover {
            color: #fbbf24;
        }
        .breadcrumb span {
            color: #cbd5e1;
        }
        .hero {
            background: linear-gradient(rgba(15, 23, 42, 0.9), rgba(30, 41, 59, 0.9)), url('https://images.unsplash.com/photo-1518709268805-4e9042af2176?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            padding: 80px 0;
            text-align: center;
        }
        .hero h1 {
            margin-bottom: 20px;
        }
        .search-box {
            background-color: #1e293b;
            padding: 30px;
            border-radius: 12px;
            margin: 40px 0;
            box-shadow: 0 10px 25px rgba(0,0,0,0.3);
        }
        .search-box h3 {
            margin-top: 0;
            margin-bottom: 20px;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px 20px;
            border: 2px solid #475569;
            border-radius: 8px;
            background-color: #0f172a;
            color: #e2e8f0;
            font-size: 1rem;
        }
        .search-input:focus {
            outline: none;
            border-color: #3b82f6;
        }
        .search-btn {
            padding: 15px 30px;
            background: linear-gradient(90deg, #3b82f6, #1d4ed8);
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .search-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(59, 130, 246, 0.4);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: #1e293b;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        aside {
            background-color: #1e293b;
            border-radius: 12px;
            padding: 25px;
            height: fit-content;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .toc {
            position: sticky;
            top: 100px;
        }
        .toc h3 {
            margin-top: 0;
            color: #fbbf24;
            border-bottom: 2px solid #334155;
            padding-bottom: 10px;
        }
        .toc ul {
            list-style: none;
        }
        .toc li {
            margin-bottom: 12px;
        }
        .toc a {
            color: #cbd5e1;
            display: block;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.3s ease;
        }
        .toc a:hover {
            background-color: #334155;
            color: #fbbf24;
            padding-left: 20px;
        }
        .rating-box, .comment-box {
            background-color: #1e293b;
            padding: 30px;
            border-radius: 12px;
            margin: 40px 0;
            box-shadow: 0 10px 25px rgba(0,0,0,0.3);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #475569;
            margin: 10px 0;
        }
        .star-rating .star {
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .star-rating .star.active,
        .star-rating .star:hover {
            color: #fbbf24;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: 600;
            color: #cbd5e1;
        }
        .form-group input,
        .form-group textarea {
            padding: 15px;
            border: 2px solid #475569;
            border-radius: 8px;
            background-color: #0f172a;
            color: #e2e8f0;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #3b82f6;
        }
        .submit-btn {
            padding: 16px 30px;
            background: linear-gradient(90deg, #10b981, #059669);
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            align-self: flex-start;
        }
        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(16, 185, 129, 0.4);
        }
        .article-img {
            border-radius: 12px;
            overflow: hidden;
            margin: 30px auto;
            border: 3px solid #334155;
            box-shadow: 0 10px 20px rgba(0,0,0,0.4);
            max-width: 800px;
        }
        .article-img img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .article-img img:hover {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #94a3b8;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .long-tail-links {
            background-color: #1e293b;
            padding: 40px;
            border-radius: 12px;
            margin: 60px 0 40px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .long-tail-links h2 {
            text-align: center;
            margin-bottom: 30px;
        }
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
        }
        .web-link {
            background-color: #0f172a;
            padding: 15px;
            border-radius: 8px;
            border-left: 4px solid #3b82f6;
            transition: transform 0.3s ease, background-color 0.3s ease;
        }
        .web-link:hover {
            transform: translateY(-3px);
            background-color: #17233d;
        }
        .web-link a {
            color: #e2e8f0;
            font-weight: 500;
            display: block;
        }
        .web-link a:hover {
            color: #fbbf24;
        }
        footer {
            background-color: #0f172a;
            border-top: 1px solid #334155;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: #fbbf24;
            margin-bottom: 15px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: #94a3b8;
        }
        .footer-links a:hover {
            color: #fbbf24;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #334155;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        .text-center { text-align: center; }
        .mt-4 { margin-top: 2rem; }
        .mb-4 { margin-bottom: 2rem; }
        .emoji { font-size: 1.2em; }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .hero { padding: 50px 0; }
            article, aside, .search-box, .rating-box, .comment-box, .long-tail-links { padding: 25px; }
            .search-form, .rating-form, .comment-form { flex-direction: column; }
            .submit-btn { align-self: stretch; }
            .links-grid { grid-template-columns: 1fr; }
            .footer-content { flex-direction: column; }
        }