* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #4361ee;
            --primary-dark: #3a56d4;
            --secondary: #7209b7;
            --accent: #f72585;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --gray-light: #e9ecef;
            --success: #4cc9f0;
            --border-radius: 12px;
            --shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: var(--light);
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1, h2, h3, h4 {
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            color: var(--dark);
        }
        h1 {
            font-size: clamp(2.5rem, 5vw, 3.8rem);
            margin-bottom: 1.5rem;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        h2 {
            font-size: clamp(2rem, 4vw, 2.5rem);
            margin-top: 2.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--gray-light);
        }
        h3 {
            font-size: clamp(1.5rem, 3vw, 1.8rem);
            margin-top: 2rem;
            color: var(--secondary);
        }
        h4 {
            font-size: 1.3rem;
            margin-top: 1.5rem;
            color: var(--primary);
        }
        p {
            margin-bottom: 1.5rem;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 500;
            color: var(--gray);
            margin-bottom: 2rem;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background: var(--primary-dark);
            color: white;
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .btn-accent {
            background: var(--accent);
        }
        .btn-accent:hover {
            background: #e11575;
        }
        header {
            background-color: white;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            display: flex;
            align-items: center;
        }
        .my-logo span {
            color: var(--accent);
        }
        .my-logo:hover {
            color: var(--primary);
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 992px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            font-weight: 600;
            color: var(--dark);
            position: relative;
        }
        .nav-desktop a:hover {
            color: var(--primary);
        }
        .nav-desktop a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--primary);
            bottom: -5px;
            left: 0;
            transition: var(--transition);
        }
        .nav-desktop a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 5px;
        }
        @media (max-width: 992px) {
            .hamburger {
                display: flex;
            }
        }
        .hamburger span {
            width: 30px;
            height: 3px;
            background: var(--dark);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -6px);
        }
        .nav-mobile {
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            background: white;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            padding: 20px;
            transform: translateY(-150%);
            transition: transform 0.4s ease;
            z-index: 999;
        }
        .nav-mobile.active {
            transform: translateY(0);
        }
        .nav-mobile ul {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .nav-mobile a {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--dark);
            padding: 10px 0;
            border-bottom: 1px solid var(--gray-light);
            display: block;
        }
        .breadcrumb {
            background-color: var(--gray-light);
            padding: 15px 0;
            margin-bottom: 30px;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--gray);
        }
        main {
            padding: 40px 0;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }
        @media (max-width: 768px) {
            .article-content {
                padding: 25px;
            }
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 2px solid var(--gray-light);
            flex-wrap: wrap;
            gap: 15px;
        }
        .update-time {
            color: var(--gray);
            font-size: 0.95rem;
        }
        .update-time i {
            color: var(--success);
            margin-right: 8px;
        }
        .article-img {
            margin: 30px 0;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .article-img img {
            width: 100%;
            height: auto;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(67, 97, 238, 0.1) 0%, rgba(114, 9, 183, 0.1) 100%);
            border-left: 5px solid var(--primary);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight h4 {
            margin-top: 0;
            color: var(--secondary);
        }
        .related-links {
            margin: 40px 0;
            padding: 25px;
            background: var(--gray-light);
            border-radius: var(--border-radius);
        }
        .related-links h3 {
            margin-top: 0;
        }
        .related-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
        }
        .related-links li {
            background: white;
            padding: 15px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .related-links li:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        @media (max-width: 992px) {
            .sidebar {
                margin-top: 40px;
            }
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            margin-top: 0;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--gray-light);
            margin-bottom: 20px;
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid var(--gray-light);
            border-right: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary);
        }
        .search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: var(--primary-dark);
        }
        .rating-form .stars {
            display: flex;
            gap: 5px;
            margin-bottom: 15px;
            justify-content: center;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .rating-form input,
        .rating-form textarea,
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            margin-bottom: 15px;
            border: 2px solid var(--gray-light);
            border-radius: 8px;
            font-family: inherit;
            transition: var(--transition);
        }
        .rating-form input:focus,
        .rating-form textarea:focus,
        .comment-form input:focus,
        .comment-form textarea:focus {
            outline: none;
            border-color: var(--primary);
        }
        .comment-form textarea {
            min-height: 150px;
            resize: vertical;
        }
        footer {
            background: var(--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-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 20px;
            color: white;
        }
        .footer-logo span {
            color: var(--accent);
        }
        .footer-links h4 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: #bbb;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin: 15px 0;
            padding: 10px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 6px;
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        .text-center {
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 1rem;
        }
        .mb-4 {
            margin-bottom: 1.5rem;
        }
        .mt-4 {
            margin-top: 1.5rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        strong {
            color: var(--secondary);
            font-weight: 800;
        }