:root {
            --primary: #1a5fb4;
            --primary-dark: #1c71d8;
            --secondary: #e6a721;
            --dark: #2d2d2d;
            --light: #f8f8f8;
            --gray: #777;
            --light-gray: #eee;
            --transition: all 0.3s ease;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 8px;
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        ul, ol {
            padding-left: 1.5rem;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .btn {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            background-color: var(--primary);
            color: white;
            border: none;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        header {
            background-color: 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: 1rem 0;
        }
        .my-logo {
            font-family: 'Arial Black', Gadget, sans-serif;
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: -1px;
        }
        .my-logo span {
            color: var(--secondary);
        }
        .search-form {
            display: flex;
            max-width: 400px;
            width: 100%;
        }
        .search-form input {
            flex: 1;
            padding: 0.75rem 1rem;
            border: 2px solid var(--light-gray);
            border-right: none;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            border-radius: 0 var(--radius) var(--radius) 0;
            padding: 0 1.5rem;
            cursor: pointer;
        }
        .search-form button:hover {
            background-color: var(--primary-dark);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--dark);
            cursor: pointer;
        }
        nav {
            background-color: var(--dark);
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .main-nav {
            display: flex;
            list-style: none;
        }
        .main-nav li {
            position: relative;
        }
        .main-nav a {
            display: block;
            padding: 1rem 1.2rem;
            color: white;
            font-weight: 500;
        }
        .main-nav a:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .breadcrumb {
            padding: 0.8rem 0;
            background-color: #f5f5f5;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--gray);
            margin: 0 0.3rem;
        }
        .hero {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1593941707882-a5bba5338fe2?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 4rem 0;
            text-align: center;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.9;
        }
        .hero .btn {
            background-color: var(--secondary);
            color: var(--dark);
        }
        .hero .btn:hover {
            background-color: #ffc107;
        }
        main {
            padding: 3rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        .content-area {
            background: white;
            border-radius: var(--radius);
            padding: 2rem;
            box-shadow: var(--shadow);
        }
        .content-area h1 {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            color: var(--dark);
            border-bottom: 3px solid var(--secondary);
            padding-bottom: 0.5rem;
        }
        .content-area h2 {
            font-size: 2rem;
            margin: 2.5rem 0 1rem;
            color: var(--primary-dark);
        }
        .content-area h3 {
            font-size: 1.5rem;
            margin: 2rem 0 0.8rem;
            color: var(--dark);
        }
        .content-area h4 {
            font-size: 1.2rem;
            margin: 1.5rem 0 0.5rem;
            color: var(--gray);
        }
        .content-area p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .content-area strong {
            color: var(--primary-dark);
        }
        .content-area em {
            background-color: #fffacd;
            font-style: italic;
            padding: 0 0.2rem;
        }
        .content-area blockquote {
            border-left: 4px solid var(--secondary);
            padding-left: 1.5rem;
            margin: 1.5rem 0;
            font-style: italic;
            color: var(--gray);
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .content-area img {
            margin: 2rem auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .content-area ul, .content-area ol {
            margin-bottom: 1.2rem;
        }
        .content-area li {
            margin-bottom: 0.5rem;
        }
        .update-time {
            background-color: #e8f4fc;
            padding: 1rem;
            border-radius: var(--radius);
            margin-bottom: 2rem;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .update-time i {
            color: var(--primary);
        }
        .sidebar {
            position: sticky;
            top: 120px;
            height: fit-content;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--radius);
            padding: 1.5rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light-gray);
            color: var(--primary-dark);
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.2rem;
            font-size: 1.8rem;
            color: var(--light-gray);
            margin: 0.5rem 0;
        }
        .stars .active {
            color: var(--secondary);
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid var(--light-gray);
            border-radius: var(--radius);
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
            min-height: 120px;
            margin-bottom: 1rem;
        }
        .links-list {
            list-style: none;
            padding-left: 0;
        }
        .links-list li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed var(--light-gray);
        }
        .links-list li:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .links-list a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .links-list a:hover {
            color: var(--primary-dark);
            gap: 0.8rem;
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-widget h4 {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            color: var(--secondary);
        }
        .footer-links {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 0.5rem;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: var(--radius);
            margin-bottom: 1rem;
            text-align: center;
        }
        friend-link a {
            color: var(--secondary);
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                margin-top: 1rem;
                max-width: 100%;
            }
            .mobile-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                position: absolute;
                top: 100%;
                left: 0;
                background-color: var(--dark);
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
            }
            .main-nav.active {
                display: flex;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav a {
                padding: 1rem 1.5rem;
                border-bottom: 1px solid #444;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .content-area h1 {
                font-size: 2rem;
            }
            .content-area h2 {
                font-size: 1.7rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }