* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #8a4baf;
            --secondary-color: #4CAF50;
            --accent-color: #FF9800;
            --text-dark: #333;
            --text-light: #666;
            --bg-light: #f9f7fc;
            --bg-white: #ffffff;
            --border-color: #e0e0e0;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: var(--bg-light);
            max-width: 100vw;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            text-align: center;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--accent-color);
            padding-left: 15px;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--text-light);
            margin-top: 1.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--bg-white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary-color);
        }
        .my-logo:hover {
            text-decoration: none;
            color: var(--primary-color);
        }
        .desktop-nav {
            display: flex;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1.1rem;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--accent-color);
            bottom: -5px;
            left: 0;
            transition: var(--transition);
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary-color);
            background: none;
            border: none;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--bg-white);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: var(--shadow);
            padding: 20px;
            z-index: 999;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            font-weight: 600;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #f1f1f1;
            margin-bottom: 30px;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 10px;
            color: var(--text-light);
        }
        main {
            background: var(--bg-white);
            border-radius: 10px;
            box-shadow: var(--shadow);
            padding: 40px;
            margin-bottom: 40px;
        }
        .article-section {
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 1px dashed var(--border-color);
        }
        .intro {
            background: linear-gradient(135deg, #f9f7fc 0%, #eef2ff 100%);
            padding: 30px;
            border-radius: 10px;
            margin-bottom: 40px;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid var(--accent-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .tip-box {
            background-color: #e8f5e9;
            border: 1px solid var(--secondary-color);
            border-radius: 8px;
            padding: 20px;
            margin: 25px 0;
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }
        .tip-box i {
            color: var(--secondary-color);
            font-size: 1.5rem;
            flex-shrink: 0;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 12px;
            box-shadow: var(--shadow);
            margin: 30px auto;
            display: block;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: 10px;
            margin-bottom: 30px;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.8rem;
        }
        .feature-box {
            background: var(--bg-light);
            border-radius: 10px;
            padding: 30px;
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        .search-form, .comment-form, .rating-form {
            display: grid;
            gap: 20px;
            margin-top: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        label {
            font-weight: 600;
            margin-bottom: 8px;
        }
        input, textarea, select {
            padding: 14px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(138, 75, 175, 0.1);
        }
        button, .btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        button:hover, .btn:hover {
            background-color: #7a3f9a;
            transform: translateY(-3px);
            text-decoration: none;
            color: white;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #FFD700;
        }
        footer {
            background-color: #2c2c2c;
            color: #eee;
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: #fff;
            font-size: 1.5rem;
            margin-bottom: 25px;
            border-bottom: 2px solid var(--accent-color);
            padding-bottom: 10px;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 20px 0;
        }
        .friend-link {
            background: rgba(255, 255, 255, 0.1);
            padding: 10px 20px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .friend-link:hover {
            background: rgba(255, 255, 255, 0.2);
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.6rem; }
            .container { padding: 0 15px; }
            main { padding: 30px 20px; }
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .hamburger { display: block; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.8rem; }
            .header-content { flex-wrap: wrap; }
            .my-logo { font-size: 1.8rem; }
            .feature-box { padding: 20px; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.6rem; }
            .intro { padding: 20px; }
            .tip-box { flex-direction: column; }
            button, .btn { width: 100%; }
            .footer-content { grid-template-columns: 1fr; }
        }
        .text-center { text-align: center; }
        .text-bold { font-weight: 700; }
        .text-italic { font-style: italic; }
        .emoji { font-size: 1.2em; }
        .last-updated {
            background: #f0f7ff;
            padding: 15px;
            border-radius: 8px;
            margin: 20px 0;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }