* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Nirmala UI', 'Arial', sans-serif;
        }
        :root {
            --primary: #2a4365;
            --secondary: #d69e2e;
            --accent: #c53030;
            --light: #f7fafc;
            --dark: #1a202c;
            --gray: #718096;
            --transition: all 0.3s ease;
        }
        body {
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.8;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        ul { list-style: none; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
            color: white;
            padding: 1.2rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--secondary);
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            letter-spacing: 1px;
        }
        .logo span {
            color: white;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        .nav-desktop a:hover {
            background-color: rgba(255,255,255,0.15);
            color: var(--secondary);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--secondary);
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--dark);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 1rem 2rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .nav-mobile a:hover {
            background-color: var(--primary);
            color: var(--secondary);
        }
        .breadcrumb {
            background-color: #e2e8f0;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb i { margin: 0 0.5rem; }
        .search-section {
            background: linear-gradient(to right, #4c51bf, #667eea);
            padding: 2.5rem 0;
            text-align: center;
            color: white;
            margin-bottom: 2.5rem;
        }
        .search-section h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        .search-box {
            max-width: 700px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
        }
        .search-box input {
            flex-grow: 1;
            padding: 1.2rem 1.5rem;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-box button {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 0 2.5rem;
            cursor: pointer;
            font-weight: bold;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-box button:hover {
            background-color: #b7791f;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        .article-content {
            background-color: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-content h1 {
            color: var(--primary);
            font-size: 2.8rem;
            line-height: 1.3;
            margin-bottom: 1.5rem;
            border-bottom: 3px solid var(--secondary);
            padding-bottom: 0.8rem;
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            color: var(--gray);
            margin-bottom: 2.5rem;
            font-size: 0.95rem;
        }
        .article-meta span i { margin-right: 0.5rem; }
        .intro {
            font-size: 1.3rem;
            color: var(--dark);
            background-color: #f0f9ff;
            padding: 1.5rem;
            border-left: 5px solid var(--accent);
            margin-bottom: 2.5rem;
            border-radius: 0 8px 8px 0;
        }
        .intro strong { color: var(--accent); }
        .content-section {
            margin-bottom: 3rem;
        }
        .content-section h2 {
            color: var(--primary);
            font-size: 2rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #cbd5e0;
        }
        .content-section h3 {
            color: var(--secondary);
            font-size: 1.6rem;
            margin: 1.8rem 0 1rem;
        }
        .content-section p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .content-section emoji { font-size: 1.4rem; margin-right: 0.5rem; }
        .highlight {
            background-color: #fffacd;
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: bold;
        }
        .tier-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            border-radius: 10px;
            overflow: hidden;
        }
        .tier-table th {
            background-color: var(--primary);
            color: white;
            padding: 1.2rem;
            text-align: left;
            font-size: 1.2rem;
        }
        .tier-table td {
            padding: 1rem 1.2rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .tier-table tr:nth-child(even) { background-color: #f8f9fa; }
        .tier-table tr:hover { background-color: #edf2f7; }
        .tier-s { color: #e53e3e; font-weight: bold; }
        .tier-a { color: #d69e2e; font-weight: bold; }
        .tier-b { color: #38a169; font-weight: bold; }
        .tier-c { color: #3182ce; font-weight: bold; }
        .hero-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 12px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            border: 5px solid white;
        }
        aside {
            background-color: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: fit-content;
        }
        aside h3 {
            color: var(--primary);
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary);
        }
        .rating-widget, .comment-widget {
            margin-bottom: 2.5rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 1.8rem;
            color: #e2e8f0;
            cursor: pointer;
        }
        .stars i.active { color: #f6ad55; }
        .rating-btn, .comment-btn {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            width: 100%;
            margin-top: 1rem;
            transition: var(--transition);
        }
        .rating-btn:hover, .comment-btn:hover {
            background-color: var(--accent);
        }
        .comment-widget textarea {
            width: 100%;
            padding: 1rem;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            resize: vertical;
            min-height: 150px;
            font-size: 1rem;
            margin-top: 1rem;
        }
        .popular-links ul {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .popular-links li a {
            display: block;
            padding: 0.8rem 1rem;
            background-color: #f7fafc;
            border-radius: 6px;
            border-left: 4px solid var(--secondary);
            transition: var(--transition);
        }
        .popular-links li a:hover {
            background-color: #edf2f7;
            transform: translateX(5px);
        }
        .long-tail-links {
            background-color: white;
            padding: 3rem 2rem;
            margin: 3rem 0;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .long-tail-links h2 {
            color: var(--primary);
            font-size: 2rem;
            margin-bottom: 1.5rem;
            text-align: center;
        }
        .web-link-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background: linear-gradient(135deg, #f0f9ff 0%, #e6f7ff 100%);
            padding: 1.2rem;
            border-radius: 8px;
            border: 1px solid #bae7ff;
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            border-color: var(--secondary);
        }
        .site-footer {
            background-color: var(--dark);
            color: #cbd5e0;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            color: white;
            font-size: 1.4rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary);
            display: inline-block;
        }
        .footer-col ul li {
            margin-bottom: 0.8rem;
        }
        .footer-col a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a5568;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 992px) {
            main { grid-template-columns: 1fr; }
            .article-content h1 { font-size: 2.4rem; }
            .nav-desktop { display: none; }
            .hamburger { display: block; }
        }
        @media (max-width: 768px) {
            .search-section h2 { font-size: 1.7rem; }
            .search-box { flex-direction: column; border-radius: 12px; }
            .search-box input, .search-box button { width: 100%; border-radius: 0; padding: 1rem; }
            .article-content { padding: 1.5rem; }
            .article-content h1 { font-size: 2rem; }
            .content-section h2 { font-size: 1.7rem; }
            .tier-table { font-size: 0.9rem; }
            .tier-table th, .tier-table td { padding: 0.8rem; }
            .web-link-container { grid-template-columns: 1fr; }
        }