* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-color: #FF6B6B;
            --secondary-color: #4ECDC4;
            --accent-color: #FFD166;
            --dark-color: #2D3047;
            --light-color: #F7FFF7;
            --gray-color: #6C757D;
            --shadow: 0 5px 15px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--dark-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: 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-color);
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .my-logo span {
            color: var(--accent-color);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            font-weight: 600;
            color: var(--dark-color);
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover, .main-nav a.active {
            color: var(--primary-color);
            border-bottom-color: var(--primary-color);
        }
        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 1.8rem;
            color: var(--dark-color);
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: var(--gray-color);
        }
        .search-section {
            background: linear-gradient(135deg, var(--secondary-color), #1A936F);
            padding: 40px 0;
            text-align: center;
            color: white;
        }
        .search-box {
            max-width: 700px;
            margin: 20px auto 0;
        }
        .search-form {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-form input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1.1rem;
        }
        .search-form button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 35px;
            cursor: pointer;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #ff5252;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 40px;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .last-updated {
            font-style: italic;
            color: var(--gray-color);
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
        }
        h1 {
            color: var(--dark-color);
            font-size: 2.8rem;
            margin-bottom: 25px;
            line-height: 1.2;
        }
        h2 {
            color: var(--primary-color);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent-color);
        }
        h3 {
            color: var(--secondary-color);
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: var(--dark-color);
            font-size: 1.3rem;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .intro-text {
            font-size: 1.3rem;
            color: var(--dark-color);
            background-color: #f0f8ff;
            padding: 25px;
            border-left: 5px solid var(--secondary-color);
            margin-bottom: 35px;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box {
            background-color: #fff9e6;
            border: 2px dashed var(--accent-color);
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .tip {
            background-color: #e8f4fc;
            padding: 20px;
            border-radius: 8px;
            margin: 25px 0;
            border-left: 5px solid var(--secondary-color);
        }
        .tip i {
            color: var(--secondary-color);
            margin-right: 10px;
        }
        ul, ol {
            padding-left: 30px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        .content-img {
            margin: 30px auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray-color);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .internal-links {
            background-color: #f8f9fa;
            padding: 25px;
            border-radius: 10px;
            margin: 35px 0;
        }
        .internal-links h4 {
            margin-top: 0;
        }
        .internal-links ul {
            columns: 2;
            list-style: none;
            padding-left: 0;
        }
        @media (max-width: 768px) {
            .internal-links ul {
                columns: 1;
            }
        }
        .internal-links li {
            margin-bottom: 12px;
            padding-left: 20px;
            position: relative;
        }
        .internal-links li::before {
            content: "➤";
            color: var(--primary-color);
            position: absolute;
            left: 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            margin-bottom: 20px;
            color: var(--dark-color);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #FFD700;
            margin: 15px 0;
            cursor: pointer;
        }
        .stars span {
            transition: var(--transition);
        }
        .stars span:hover, .stars span.active {
            transform: scale(1.2);
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            margin-bottom: 15px;
            min-height: 150px;
            resize: vertical;
            font-size: 1rem;
        }
        .comment-form button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            width: 100%;
        }
        .comment-form button:hover {
            background-color: #3db8ae;
        }
        .site-footer {
            background-color: var(--dark-color);
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            color: white;
            margin-bottom: 20px;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
        }
        friend-link a {
            color: #ccc;
        }
        friend-link a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                position: fixed;
                top: 80px;
                left: -100%;
                flex-direction: column;
                background-color: white;
                width: 100%;
                text-align: center;
                padding: 30px 0;
                gap: 0;
                transition: var(--transition);
                box-shadow: var(--shadow);
            }
            .main-nav ul.show {
                left: 0;
            }
            .main-nav li {
                margin: 15px 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 25px;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content, .sidebar-widget {
            animation: fadeIn 0.8s ease-out;
        }
        .highlight-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
            transition: var(--transition);
        }
        button, .stars span {
            user-select: none;
        }