:root {
            --primary: #1a237e;
            --primary-light: #534bae;
            --secondary: #ff6f00;
            --accent: #00bcd4;
            --text-dark: #212121;
            --text-light: #757575;
            --bg-light: #f5f5f7;
            --bg-white: #ffffff;
            --border: #e0e0e0;
            --success: #4caf50;
            --warning: #ff9800;
            --danger: #f44336;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-heavy: 0 10px 30px rgba(0, 0, 0, 0.15);
            --radius: 8px;
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            line-height: 1.6;
        }
        body {
            background-color: var(--bg-light);
            color: var(--text-dark);
            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: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--bg-white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -1px;
            display: flex;
            align-items: center;
        }
        .my-logo span:first-child {
            color: var(--secondary);
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 5px;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--secondary);
            transition: var(--transition);
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
            background: none;
            border: none;
            padding: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: var(--bg-white);
            box-shadow: var(--shadow-heavy);
            padding: 20px;
            transform: translateY(-150%);
            transition: transform 0.5s ease;
            z-index: 999;
        }
        .mobile-nav.active {
            transform: translateY(0);
        }
        .mobile-nav ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .mobile-nav a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 10px 0;
            display: block;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb i {
            margin: 0 8px;
            font-size: 0.8rem;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0 60px;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: var(--bg-white);
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }
        article h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        article h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        article h3 {
            font-size: 1.6rem;
            color: var(--primary-light);
            margin: 30px 0 15px;
        }
        article h4 {
            font-size: 1.3rem;
            color: var(--text-dark);
            margin: 25px 0 12px;
        }
        article p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            color: var(--text-dark);
        }
        article strong {
            color: var(--secondary);
            font-weight: 700;
        }
        article em {
            color: var(--text-light);
            font-style: italic;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            margin-bottom: 30px;
            font-size: 0.95rem;
            color: var(--text-light);
        }
        .featured-img {
            width: 100%;
            border-radius: var(--radius);
            overflow: hidden;
            margin: 30px 0;
            box-shadow: var(--shadow-heavy);
        }
        .inline-link-list {
            background-color: #f0f4ff;
            padding: 25px;
            border-radius: var(--radius);
            border-left: 5px solid var(--accent);
            margin: 30px 0;
        }
        .inline-link-list h3 {
            margin-top: 0;
        }
        .inline-link-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 12px;
            margin-top: 15px;
        }
        .inline-link-list li a {
            display: flex;
            align-items: center;
            padding: 10px 15px;
            background-color: var(--bg-white);
            border-radius: 6px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .inline-link-list li a:hover {
            background-color: var(--primary);
            color: white;
            transform: translateX(5px);
        }
        .inline-link-list li a i {
            margin-right: 10px;
            color: var(--accent);
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: var(--bg-white);
            border-radius: var(--radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border);
        }
        #search-form {
            display: flex;
        }
        #search-input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 1px solid var(--border);
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        #search-btn {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        #search-btn:hover {
            background-color: var(--secondary);
        }
        .rating-container {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 15px 0;
            font-size: 1.8rem;
            color: #ffd700;
        }
        .stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        #submit-rating {
            background-color: var(--success);
            color: white;
            border: none;
            padding: 10px 25px;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            margin-top: 10px;
            transition: var(--transition);
        }
        #submit-rating:hover {
            background-color: #388e3c;
        }
        #comment-form input,
        #comment-form textarea {
            width: 100%;
            padding: 12px 15px;
            margin-bottom: 15px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            font-size: 1rem;
        }
        #comment-form textarea {
            min-height: 120px;
            resize: vertical;
        }
        #comment-form button {
            background-color: var(--accent);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        #comment-form button:hover {
            background-color: #0097a7;
        }
        footer {
            background-color: var(--primary);
            color: white;
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 20px;
            color: white;
        }
        friend-link {
            display: block;
            margin: 15px 0;
            color: #bbdefb;
        }
        friend-link a {
            color: #bbdefb;
        }
        friend-link a:hover {
            color: var(--secondary);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #bbdefb;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            article {
                padding: 25px;
            }
            article h1 {
                font-size: 2.2rem;
            }
            article h2 {
                font-size: 1.8rem;
            }
            .header-container, .breadcrumb, main, .footer-content {
                padding-left: 15px;
                padding-right: 15px;
            }
            .inline-link-list ul {
                grid-template-columns: 1fr;
            }
        }
        .highlight {
            background-color: #fff8e1;
            padding: 25px;
            border-radius: var(--radius);
            border-left: 5px solid var(--warning);
            margin: 25px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .last-updated {
            background-color: #e8f5e9;
            padding: 10px 15px;
            border-radius: var(--radius);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin: 10px 0;
            font-weight: 600;
        }