* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-color: #2c5e92;
            --secondary-color: #d4af37;
            --accent-color: #c53030;
            --text-dark: #1f2937;
            --text-light: #6b7280;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --border-radius: 10px;
            --transition: all 0.3s ease;
        }
        body {
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--bg-white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary-color);
        }
        .search-form {
            display: flex;
            max-width: 400px;
            flex-grow: 1;
            margin: 0 30px;
        }
        .search-input {
            flex-grow: 1;
            padding: 12px 20px;
            border: 2px solid #e5e7eb;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            border-color: var(--primary-color);
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #1e4a7a;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary-color);
            cursor: pointer;
        }
        nav {
            background-color: var(--primary-color);
            border-radius: 0 0 var(--border-radius) var(--border-radius);
        }
        .nav-list {
            display: flex;
            justify-content: center;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: block;
            color: white;
            padding: 18px 24px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .nav-link:hover,
        .nav-item.active .nav-link {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--secondary-color);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-content {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--primary-color);
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 15px;
        }
        .article-meta {
            display: flex;
            gap: 20px;
            margin-bottom: 30px;
            color: var(--text-light);
            font-size: 0.95rem;
        }
        .meta-item i {
            margin-right: 8px;
            color: var(--secondary-color);
        }
        h2 {
            font-size: 2rem;
            margin: 40px 0 20px;
            color: var(--primary-color);
            padding-bottom: 10px;
            border-bottom: 2px dashed #e5e7eb;
        }
        h3 {
            font-size: 1.5rem;
            margin: 30px 0 15px;
            color: var(--text-dark);
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary-color);
            background-color: #f0f7ff;
            padding: 20px;
            border-left: 5px solid var(--secondary-color);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin-bottom: 30px;
        }
        .highlight {
            background-color: #fff9db;
            padding: 5px 10px;
            border-radius: 4px;
            font-weight: 600;
            color: #b45309;
        }
        .strategy-box {
            background: linear-gradient(135deg, #f0f7ff 0%, #e6f3ff 100%);
            border: 2px solid var(--primary-color);
            border-radius: var(--border-radius);
            padding: 25px;
            margin: 25px 0;
            box-shadow: var(--shadow);
        }
        .strategy-box h3 {
            color: var(--accent-color);
            margin-top: 0;
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 30px 0;
            box-shadow: var(--shadow);
            border: 5px solid white;
        }
        blockquote {
            border-left: 5px solid var(--secondary-color);
            padding-left: 25px;
            margin: 30px 0;
            font-style: italic;
            color: var(--text-light);
            font-size: 1.2rem;
            background-color: #f9fafb;
            padding: 25px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow);
            border-top: 5px solid var(--primary-color);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            display: block;
            line-height: 1;
        }
        .stat-label {
            font-size: 1rem;
            color: var(--text-light);
            margin-top: 10px;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.4rem;
            margin-bottom: 20px;
            color: var(--primary-color);
            padding-bottom: 10px;
            border-bottom: 2px solid #e5e7eb;
        }
        .popular-list li {
            padding: 12px 0;
            border-bottom: 1px dashed #e5e7eb;
        }
        .popular-list li:last-child {
            border-bottom: none;
        }
        .popular-list a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        .popular-list i {
            color: var(--secondary-color);
            margin-right: 10px;
        }
        .interactive-section {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid #e5e7eb;
        }
        .rating-form,
        .comment-form {
            background-color: #f9fafb;
            padding: 25px;
            border-radius: var(--border-radius);
            margin-bottom: 30px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--text-dark);
        }
        input[type="text"],
        input[type="email"],
        textarea {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #e5e7eb;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input[type="text"]:focus,
        input[type="email"]:focus,
        textarea:focus {
            border-color: var(--primary-color);
            outline: none;
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .star-rating {
            direction: rtl;
            display: inline-block;
            font-size: 2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #d1d5db;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--secondary-color);
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 14px 30px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .submit-btn:hover {
            background-color: #1e4a7a;
            transform: translateY(-3px);
        }
        .longtail-links {
            background-color: var(--bg-white);
            padding: 40px 0;
            margin-top: 40px;
            border-top: 3px solid var(--primary-color);
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background-color: #f0f7ff;
            padding: 18px;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--secondary-color);
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #e1efff;
            transform: translateX(10px);
        }
        .web-link a {
            color: var(--primary-color);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .web-link i {
            color: var(--secondary-color);
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 40px 0 20px;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            margin-bottom: 15px;
            display: block;
        }
        .footer-description {
            max-width: 350px;
            opacity: 0.9;
        }
        .footer-links h4 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--secondary-color);
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }
        .social-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            transition: var(--transition);
        }
        .social-icon:hover {
            background-color: var(--secondary-color);
            transform: translateY(-5px);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            opacity: 0.8;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2.3rem;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                margin: 20px 0 0;
                max-width: 100%;
            }
        }
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                border-radius: 0;
            }
            .nav-list {
                flex-direction: column;
            }
            .nav-link {
                padding: 15px 20px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            nav.active {
                display: block;
            }
            .article-content {
                padding: 25px;
            }
            .footer-content {
                flex-direction: column;
                gap: 30px;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 10px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }