* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #c53030;
            --secondary-color: #f59e0b;
            --dark-color: #1a202c;
            --light-color: #f7fafc;
            --text-color: #2d3748;
            --gray-color: #718096;
            --accent-color: #4c51bf;
            --success-color: #38a169;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-color);
            direction: ltr;
            text-align: left;
        }
        h1, h2, h3, h4, h5, h6 {
            color: var(--dark-color);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            color: var(--primary-color);
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            margin-top: 2rem;
            color: var(--accent-color);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--dark-color);
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
            text-decoration: underline;
        }
        strong {
            color: var(--primary-color);
            font-weight: 700;
        }
        em {
            color: var(--accent-color);
            font-style: italic;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--dark-color);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary-color);
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .logo span {
            color: var(--secondary-color);
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--secondary-color);
            text-decoration: none;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 0.75rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            color: var(--gray-color);
        }
        main {
            padding: 2rem 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: white;
            padding: 2.5rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .article-meta {
            display: flex;
            gap: 1rem;
            margin-bottom: 2rem;
            color: var(--gray-color);
            font-size: 0.9rem;
        }
        .article-meta i {
            margin-right: 0.5rem;
        }
        .section {
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .highlight-box {
            background-color: #fffaf0;
            border-left: 4px solid var(--secondary-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip-box {
            background-color: #f0fff4;
            border: 1px solid var(--success-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 8px;
        }
        .tip-box h4 {
            color: var(--success-color);
            margin-top: 0;
        }
        .article-image {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray-color);
            margin-top: 0.5rem;
            margin-bottom: 2rem;
        }
        .form-container {
            background-color: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #cbd5e0;
            border-radius: 5px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 3px rgba(76, 81, 191, 0.1);
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 1.5rem;
            color: #cbd5e0;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating input:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label {
            color: var(--secondary-color);
        }
        .btn {
            display: inline-block;
            background-color: var(--primary-color);
            color: white;
            padding: 0.75rem 1.5rem;
            border: none;
            border-radius: 5px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            background-color: #9b2c2c;
            color: white;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            margin-top: 0;
            color: var(--primary-color);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        .web-links {
            background-color: var(--dark-color);
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .web-link-container {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1.5rem;
        }
        @media (max-width: 768px) {
            .web-link-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .web-link {
            background-color: rgba(255, 255, 255, 0.1);
            padding: 1rem;
            border-radius: 5px;
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
        }
        .web-link a {
            color: white;
            display: block;
            text-align: center;
        }
        footer {
            background-color: #1a202c;
            color: #cbd5e0;
            padding: 2rem 0;
            text-align: center;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1.5rem;
        }
        .footer-links {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            justify-content: center;
        }
        .copyright {
            font-size: 0.9rem;
            color: #a0aec0;
            margin-top: 1rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--dark-color);
                flex-direction: column;
                padding: 1rem 0;
                box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links li {
                width: 100%;
                text-align: center;
            }
            .nav-links a {
                display: block;
                padding: 1rem;
            }
            .hamburger {
                display: flex;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -6px);
            }
            article {
                padding: 1.5rem;
            }
            .form-container {
                padding: 1.5rem;
            }
        }
        .accordion {
            margin: 2rem 0;
        }
        .accordion-item {
            border: 1px solid #e2e8f0;
            border-radius: 5px;
            margin-bottom: 1rem;
            overflow: hidden;
        }
        .accordion-header {
            padding: 1rem 1.5rem;
            background-color: #f7fafc;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            transition: var(--transition);
        }
        .accordion-header:hover {
            background-color: #edf2f7;
        }
        .accordion-content {
            padding: 0 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .accordion-item.active .accordion-content {
            padding: 1rem 1.5rem;
            max-height: 1000px;
        }
        .accordion-item.active .accordion-header {
            background-color: #edf2f7;
        }
        .accordion-icon {
            transition: transform 0.3s ease;
        }
        .accordion-item.active .accordion-icon {
            transform: rotate(180deg);
        }
        .text-center {
            text-align: center;
        }
        .text-right {
            text-align: right;
        }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mt-3 { margin-top: 3rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }