:root {
            --primary: #1e3a8a; 
            --secondary: #dc2626; 
            --accent: #f59e0b; 
            --light: #f8fafc;
            --dark: #0f172a;
            --gray: #64748b;
            --transition: all 0.3s ease;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --border-radius: 12px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            color: white;
            font-size: 1.8rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e2e8f0;
            font-size: 0.9rem;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb-item + .breadcrumb-item::before {
            content: ">";
            padding: 0 8px;
            color: var(--gray);
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-list a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--accent);
            transition: var(--transition);
        }
        .nav-list a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .hero {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1598899134739-24c46f58b8c0?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 4rem 1rem;
            text-align: center;
            border-radius: var(--border-radius);
            margin: 2rem auto;
        }
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 1rem;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .search-input {
            padding: 1rem 1.5rem;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            width: 100%;
        }
        .search-button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            align-self: center;
        }
        .search-button:hover {
            background: #b91c1c;
            transform: translateY(-3px);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 3rem 0;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .main-article {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .main-article h2 {
            color: var(--primary);
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent);
        }
        .main-article h3 {
            color: var(--dark);
            margin: 1.5rem 0 1rem;
        }
        .main-article p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(120deg, #fef3c7 0%, #fde68a 100%);
            padding: 1.5rem;
            border-left: 5px solid var(--accent);
            border-radius: 8px;
            margin: 2rem 0;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }
        .data-table th, .data-table td {
            border: 1px solid #e2e8f0;
            padding: 1rem;
            text-align: left;
        }
        .data-table th {
            background-color: var(--primary);
            color: white;
        }
        .data-table tr:nth-child(even) {
            background-color: #f8fafc;
        }
        .data-table tr:hover {
            background-color: #f1f5f9;
        }
        .article-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .widget h3 {
            color: var(--primary);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #fbbf24;
            margin: 1rem 0;
            cursor: pointer;
        }
        .star:hover {
            transform: scale(1.2);
        }
        .comment-section {
            margin-top: 3rem;
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-input, .form-textarea {
            padding: 0.8rem;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 1rem 1.5rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-button:hover {
            background: var(--secondary);
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: var(--accent);
            margin-bottom: 1rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            color: #cbd5e1;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
        }
        .friend-link-title {
            color: var(--accent);
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }
        .friend-link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            list-style: none;
        }
        .friend-link-list a {
            background: rgba(255,255,255,0.1);
            padding: 0.5rem 1rem;
            border-radius: 20px;
            color: white;
            font-size: 0.9rem;
        }
        .friend-link-list a:hover {
            background: var(--primary);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #334155;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                position: fixed;
                top: 70px;
                left: -100%;
                flex-direction: column;
                background: var(--dark);
                width: 100%;
                padding: 2rem;
                transition: var(--transition);
                z-index: 999;
            }
            .nav-list.active {
                left: 0;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .main-article {
                padding: 1.5rem;
            }
            .content-grid {
                gap: 2rem;
            }
        }
        .internal-link {
            color: var(--secondary);
            font-weight: 600;
            border-bottom: 2px dotted var(--secondary);
        }
        .internal-link:hover {
            border-bottom-style: solid;
        }
        .tooltip {
            position: relative;
            border-bottom: 1px dashed var(--gray);
            cursor: help;
        }
        .tooltip-text {
            visibility: hidden;
            width: 250px;
            background-color: var(--dark);
            color: white;
            text-align: center;
            border-radius: 6px;
            padding: 10px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 0.9rem;
        }
        .tooltip:hover .tooltip-text {
            visibility: visible;
            opacity: 1;
        }
        .price-badge {
            display: inline-block;
            background: linear-gradient(to right, var(--secondary), #ea580c);
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-weight: bold;
            font-size: 0.9rem;
            margin: 0 0.2rem;
        }
        .emoji {
            font-size: 1.2em;
            margin: 0 0.2em;
        }