* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a73e8;
            --secondary: #34a853;
            --accent: #ea4335;
            --dark: #202124;
            --light: #f8f9fa;
            --gray: #5f6368;
            --border: #dadce0;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #ffffff;
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark) 0%, #2d2f33 100%);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 20px;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 1.5px;
        }
        .logo a {
            color: white;
            text-decoration: none;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            transition: var(--transition);
        }
        .logo a:hover {
            opacity: 0.9;
        }
        .desktop-nav {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 992px) {
            .desktop-nav {
                display: none;
            }
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--primary);
            transition: width 0.3s ease;
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 992px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: var(--dark);
            padding: 20px;
            transform: translateY(-100%);
            opacity: 0;
            transition: transform 0.4s ease, opacity 0.3s ease;
            z-index: 999;
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            transform: translateY(0);
            opacity: 1;
        }
        .mobile-nav .nav-link {
            display: block;
            padding: 15px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            font-size: 1.2rem;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 15px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: var(--gray);
            text-decoration: none;
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--dark);
            font-weight: 600;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 20px;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-container {
            background: white;
            border-radius: 12px;
            overflow: hidden;
        }
        .article-header {
            padding: 40px 30px 30px;
            border-bottom: 1px solid var(--border);
        }
        .article-title {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--dark);
        }
        @media (max-width: 768px) {
            .article-title {
                font-size: 2.2rem;
            }
        }
        .article-meta {
            display: flex;
            gap: 20px;
            color: var(--gray);
            font-size: 0.95rem;
            margin-bottom: 15px;
        }
        .meta-item i {
            margin-right: 8px;
            color: var(--primary);
        }
        .article-body {
            padding: 30px;
        }
        .intro-section {
            background: linear-gradient(135deg, #f0f7ff 0%, #e3f2fd 100%);
            padding: 30px;
            border-radius: 12px;
            margin-bottom: 40px;
            border-left: 6px solid var(--primary);
        }
        .intro-title {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--dark);
        }
        .intro-text {
            font-size: 1.15rem;
            line-height: 1.8;
        }
        .article-section {
            margin-bottom: 50px;
        }
        .section-title {
            font-size: 2rem;
            margin: 30px 0 20px;
            padding-bottom: 12px;
            border-bottom: 3px solid var(--secondary);
            color: var(--dark);
        }
        .subsection-title {
            font-size: 1.5rem;
            margin: 25px 0 15px;
            color: var(--dark);
        }
        .article-text {
            margin-bottom: 25px;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .highlight {
            background: linear-gradient(120deg, #fff9c4 0%, #fff9c4 100%);
            padding: 3px 6px;
            border-radius: 4px;
            font-weight: 600;
        }
        .keyword-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--primary);
            transition: var(--transition);
        }
        .keyword-link:hover {
            color: var(--accent);
            border-bottom-style: solid;
        }
        .featured-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 12px;
            margin: 30px auto;
            display: block;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .stat-card {
            background: white;
            border-radius: 10px;
            padding: 25px;
            box-shadow: var(--shadow);
            border-top: 5px solid var(--primary);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-8px);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 10px;
        }
        .stat-desc {
            color: var(--gray);
            font-size: 1.05rem;
        }
        blockquote {
            border-left: 6px solid var(--secondary);
            padding: 25px 30px;
            margin: 35px 0;
            background: #f9f9f9;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            font-size: 1.25rem;
            line-height: 1.7;
            color: var(--dark);
        }
        blockquote::before {
            content: "\201C";
            font-size: 4rem;
            color: var(--secondary);
            line-height: 0;
            margin-right: 15px;
            vertical-align: -0.4em;
        }
        .interactive-section {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 30px;
            margin: 40px 0;
            border: 1px solid var(--border);
        }
        .section-heading {
            font-size: 1.8rem;
            margin-bottom: 25px;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .section-heading i {
            color: var(--primary);
        }
        .search-box {
            display: flex;
            max-width: 600px;
            margin: 20px 0;
        }
        .search-input {
            flex: 1;
            padding: 16px 20px;
            border: 2px solid var(--border);
            border-right: none;
            border-radius: 8px 0 0 8px;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary);
        }
        .search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 30px;
            border-radius: 0 8px 8px 0;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: #0d62d9;
        }
        .rating-system {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 500px;
        }
        .stars {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #ffc107;
            cursor: pointer;
        }
        .star {
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            transform: scale(1.2);
        }
        .rating-btn {
            align-self: flex-start;
            background: var(--secondary);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-btn:hover {
            background: #2c8c47;
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 700px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-label {
            font-weight: 600;
            color: var(--dark);
        }
        .form-input,
        .form-textarea {
            padding: 15px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: var(--primary);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            align-self: flex-start;
            background: var(--accent);
            color: white;
            border: none;
            padding: 15px 35px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background: #d23c2e;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            border-radius: 12px;
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.5rem;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary);
            color: var(--dark);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dashed var(--border);
        }
        .related-links a {
            color: var(--dark);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-links a:hover {
            color: var(--primary);
            padding-left: 8px;
        }
        .related-links i {
            color: var(--secondary);
            font-size: 0.9rem;
        }
        .footer-links-section {
            background: #f1f3f4;
            padding: 40px 20px;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background: white;
            padding: 18px;
            border-radius: 8px;
            box-shadow: 0 3px 8px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--dark);
            text-decoration: none;
            font-weight: 500;
            display: block;
            transition: var(--transition);
        }
        .web-link a:hover {
            color: var(--primary);
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 50px 20px 30px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 20px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .footer-text {
            color: #bdc1c6;
            line-height: 1.7;
        }
        .footer-heading {
            font-size: 1.3rem;
            margin-bottom: 25px;
            color: white;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 15px;
        }
        .footer-links a {
            color: #bdc1c6;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 8px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #9aa0a6;
            font-size: 0.95rem;
        }
        .emoji {
            font-size: 1.2em;
            vertical-align: middle;
        }
        .text-bold {
            font-weight: 800;
            color: var(--dark);
        }
        .text-italic {
            font-style: italic;
        }
        .text-center {
            text-align: center;
        }
        .mt-40 {
            margin-top: 40px;
        }
        .mb-40 {
            margin-bottom: 40px;
        }
        @media (max-width: 768px) {
            .article-header,
            .article-body {
                padding: 25px 20px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }