:root {
            --primary-dark: #0a1428;
            --primary-blue: #1a73e8;
            --accent-gold: #c8aa6e;
            --accent-red: #d13639;
            --light-bg: #f0f2f5;
            --text-primary: #2d3748;
            --text-secondary: #4a5568;
            --border-color: #e2e8f0;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #1e2b4d 100%);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-family: 'Michroma', 'Arial Black', sans-serif;
            font-size: 1.8rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--accent-gold);
            transform: scale(1.02);
        }
        .my-logo i {
            color: var(--accent-red);
        }
        .search-form {
            display: flex;
            max-width: 400px;
            width: 100%;
        }
        .search-form input {
            flex: 1;
            padding: 12px 20px;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            background: rgba(255, 255, 255, 0.95);
        }
        .search-form button {
            background: var(--primary-blue);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-form button:hover {
            background: #0d5bb9;
        }
        nav {
            background: rgba(10, 20, 40, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .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 {
            color: white;
            text-decoration: none;
            padding: 18px 22px;
            display: block;
            font-weight: 500;
            transition: var(--transition);
            border-bottom: 3px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(255, 255, 255, 0.05);
            color: var(--accent-gold);
            border-bottom-color: var(--accent-gold);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 10px;
        }
        .breadcrumb {
            background: var(--light-bg);
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            margin-right: 10px;
            display: flex;
            align-items: center;
        }
        .breadcrumb li:not(:last-child):after {
            content: "›";
            margin-left: 10px;
            color: var(--text-secondary);
        }
        .breadcrumb a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
            color: var(--accent-red);
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-content {
            background: white;
            border-radius: 12px;
            box-shadow: var(--shadow);
            padding: 40px;
            overflow: hidden;
        }
        aside.sidebar {
            background: white;
            border-radius: 12px;
            box-shadow: var(--shadow);
            padding: 25px;
            align-self: start;
            position: sticky;
            top: 140px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 25px;
        }
        .sidebar-widget:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .sidebar-title {
            font-size: 1.3rem;
            color: var(--primary-dark);
            margin-bottom: 18px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-gold);
        }
        .quick-links {
            list-style: none;
        }
        .quick-links li {
            margin-bottom: 12px;
        }
        .quick-links a {
            color: var(--text-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            padding: 10px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .quick-links a:hover {
            background: var(--light-bg);
            color: var(--primary-blue);
            transform: translateX(5px);
        }
        .quick-links i {
            margin-right: 10px;
            color: var(--accent-red);
            width: 20px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-dark);
            margin-bottom: 20px;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent-gold);
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-dark);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--text-primary);
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--text-secondary);
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--text-secondary);
            font-weight: 500;
            background: var(--light-bg);
            padding: 25px;
            border-radius: 10px;
            border-left: 4px solid var(--primary-blue);
            margin-bottom: 30px;
        }
        strong {
            color: var(--primary-dark);
            font-weight: 700;
        }
        em {
            color: var(--accent-red);
            font-style: italic;
        }
        .info-box {
            background: #e8f4ff;
            border-left: 5px solid var(--primary-blue);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .warning-box {
            background: #fff8e8;
            border-left: 5px solid #ffb300;
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .step-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .step {
            background: white;
            border: 2px solid var(--border-color);
            border-radius: 10px;
            padding: 25px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .step:hover {
            border-color: var(--primary-blue);
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        .step-number {
            position: absolute;
            top: 0;
            left: 0;
            background: var(--primary-blue);
            color: white;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: bold;
            border-radius: 0 0 10px 0;
        }
        .step-content {
            margin-top: 10px;
        }
        img.article-image {
            width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 30px 0;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        img.article-image:hover {
            transform: scale(1.01);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-secondary);
            margin-top: -20px;
            margin-bottom: 30px;
            font-size: 0.95rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.05);
            border-radius: 10px;
            overflow: hidden;
        }
        th {
            background: var(--primary-dark);
            color: white;
            padding: 18px 15px;
            text-align: left;
            font-weight: 600;
        }
        td {
            padding: 15px;
            border-bottom: 1px solid var(--border-color);
        }
        tr:nth-child(even) {
            background: var(--light-bg);
        }
        tr:hover {
            background: #e3f2fd;
        }
        .button {
            display: inline-block;
            background: var(--primary-blue);
            color: white;
            padding: 14px 28px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .button:hover {
            background: #0d5bb9;
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(26, 115, 232, 0.3);
        }
        .button-gold {
            background: var(--accent-gold);
            color: var(--primary-dark);
        }
        .button-gold:hover {
            background: #b89446;
        }
        .interactive-section {
            margin-top: 50px;
            padding-top: 40px;
            border-top: 2px solid var(--border-color);
        }
        .rating-container {
            display: flex;
            align-items: center;
            gap: 20px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }
        .stars {
            display: flex;
            gap: 5px;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .rating-form,
        .comment-form {
            background: var(--light-bg);
            padding: 30px;
            border-radius: 12px;
            margin-bottom: 40px;
        }
        .form-group {
            margin-bottom: 25px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--text-primary);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 14px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--primary-blue);
            outline: none;
            box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
        }
        footer {
            background: var(--primary-dark);
            color: white;
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.4rem;
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-gold);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #cbd5e0;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
        }
        .footer-links a:hover {
            color: var(--accent-gold);
            transform: translateX(5px);
        }
        .footer-links i {
            margin-right: 10px;
            width: 20px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 8px;
            margin: 15px 0;
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }
        friend-link a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            display: block;
        }
        friend-link a:hover {
            color: var(--accent-gold);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #a0aec0;
            font-size: 0.95rem;
        }
        @media (max-width: 1024px) {
            main {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            aside.sidebar {
                position: static;
            }
            h1 {
                font-size: 2.4rem;
            }
            .step-container {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 20px;
            }
            .search-form {
                max-width: 100%;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 100px;
                left: 0;
                width: 100%;
                background: var(--primary-dark);
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                z-index: 999;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav li {
                width: 100%;
                text-align: center;
            }
            .main-nav a {
                padding: 18px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .article-content {
                padding: 25px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 1.8rem;
            }
            .button {
                width: 100%;
                text-align: center;
            }
            .rating-container {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        .highlight {
            background: linear-gradient(120deg, #a7f3d0 0%, #a7f3d0 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            padding: 0 3px;
            transition: background-size 0.3s ease;
        }
        .highlight:hover {
            background-size: 100% 100%;
        }
        .last-updated {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-style: italic;
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            gap: 8px;
        }