* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a73e8;
            --primary-dark: #0d47a1;
            --secondary: #e53935;
            --accent: #ffb300;
            --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: #fff;
            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);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .section {
            padding: 60px 0;
        }
        .section-title {
            font-size: 2.2rem;
            margin-bottom: 30px;
            color: var(--dark);
            position: relative;
            padding-bottom: 15px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--accent);
        }
        .site-header {
            background: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo span {
            color: var(--secondary);
        }
        .search-form {
            flex-grow: 1;
            max-width: 500px;
            margin: 0 30px;
            position: relative;
        }
        .search-form input {
            width: 100%;
            padding: 12px 20px 12px 45px;
            border: 2px solid var(--border);
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-form input:focus {
            border-color: var(--primary);
        }
        .search-form button {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--gray);
            font-size: 1.2rem;
            cursor: pointer;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li {
            margin-left: 25px;
        }
        .main-nav a {
            font-weight: 600;
            color: var(--dark);
            font-size: 1rem;
            padding: 5px 0;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--dark);
        }
        .breadcrumb {
            padding: 15px 0;
            background: #f1f3f4;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            margin: 0 10px;
            color: #aaa;
        }
        .article-hero {
            padding: 40px 0 30px;
        }
        .article-hero h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--dark);
        }
        .article-meta {
            display: flex;
            align-items: center;
            color: var(--gray);
            margin-bottom: 30px;
            flex-wrap: wrap;
        }
        .article-meta span {
            margin-right: 20px;
            display: flex;
            align-items: center;
        }
        .article-meta i {
            margin-right: 8px;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            font-size: 1.1rem;
        }
        .article-content p {
            margin-bottom: 1.8rem;
            text-align: justify;
        }
        .article-content h2 {
            font-size: 1.8rem;
            margin: 2.5rem 0 1.5rem;
            color: var(--primary-dark);
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }
        .article-content h3 {
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
            color: var(--dark);
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding-left: 25px;
            margin: 2rem 0;
            font-style: italic;
            color: var(--gray);
            background: #f9f9f9;
            padding: 20px;
            border-radius: 0 8px 8px 0;
        }
        .article-content strong {
            color: var(--primary-dark);
            font-weight: 700;
        }
        .article-content em {
            color: var(--secondary);
        }
        .featured-image {
            margin: 2.5rem 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image figcaption {
            padding: 12px;
            background: #f5f5f5;
            font-size: 0.95rem;
            color: var(--gray);
            text-align: center;
        }
        .tips-box {
            background: #e8f0fe;
            border-left: 5px solid var(--primary);
            padding: 25px;
            margin: 2.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tips-box h4 {
            color: var(--primary-dark);
            margin-bottom: 10px;
            font-size: 1.3rem;
        }
        .sidebar-widget {
            background: white;
            border-radius: 10px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            color: var(--dark);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .widget-links {
            list-style: none;
        }
        .widget-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed #eee;
        }
        .widget-links a {
            display: flex;
            align-items: center;
            color: var(--dark);
        }
        .widget-links a:hover {
            color: var(--primary);
        }
        .widget-links i {
            margin-right: 10px;
            color: var(--primary);
        }
        .user-interaction {
            margin-top: 50px;
            background: #f8f9fa;
            border-radius: 10px;
            padding: 30px;
            border: 1px solid var(--border);
        }
        .rating-section {
            text-align: center;
            margin-bottom: 40px;
        }
        .star-rating {
            font-size: 2.5rem;
            color: #ddd;
            margin: 15px 0;
            cursor: pointer;
        }
        .star-rating .star {
            margin: 0 5px;
            transition: var(--transition);
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: var(--accent);
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 15px;
            margin-bottom: 20px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
        }
        .comment-form textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        @media (max-width: 768px) {
            .form-row {
                grid-template-columns: 1fr;
            }
        }
        .footer-links {
            background: #f1f3f4;
            padding: 40px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .web-link {
            display: inline-block;
            margin: 10px 20px 10px 0;
            padding: 8px 16px;
            background: white;
            border-radius: 30px;
            border: 1px solid var(--border);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .web-link:hover {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }
        .site-footer {
            background: var(--dark);
            color: #bdc1c6;
            padding: 50px 0 20px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }
        @media (max-width: 992px) {
            .footer-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .footer-container {
                grid-template-columns: 1fr;
            }
        }
        .footer-col h4 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.2rem;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--accent);
        }
        .footer-links-col {
            list-style: none;
        }
        .footer-links-col li {
            margin-bottom: 12px;
        }
        .footer-links-col a {
            color: #bdc1c6;
        }
        .footer-links-col a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 40px;
            border-top: 1px solid #3c4043;
            font-size: 0.9rem;
            color: #9aa0a6;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                max-width: 100%;
                margin: 20px 0 0;
            }
            .main-nav {
                display: none;
                width: 100%;
                order: 4;
                margin-top: 20px;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
            }
            .main-nav li {
                margin: 0 0 15px 0;
            }
            .hamburger {
                display: block;
            }
            .article-hero h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }