* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #7c3aed;
            --primary-dark: #5b21b6;
            --secondary-color: #06d6a0;
            --accent-color: #ffd166;
            --dark-bg: #0f172a;
            --light-bg: #f8fafc;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --border-radius: 12px;
            --box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            line-height: 1.1;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.5rem);
            margin: 2.5rem 0 1.5rem;
            color: var(--dark-bg);
            position: relative;
            padding-left: 1rem;
        }
        h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.5rem;
            bottom: 0.5rem;
            width: 5px;
            background: var(--primary-color);
            border-radius: 3px;
        }
        h3 {
            font-size: clamp(1.4rem, 2.5vw, 1.8rem);
            margin: 2rem 0 1rem;
            color: var(--primary-dark);
        }
        h4 {
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
            color: var(--text-secondary);
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background: var(--dark-bg);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 1.5rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo:hover {
            color: var(--accent-color);
            transform: translateY(-2px);
            transition: var(--transition);
        }
        .my-logo i {
            color: var(--secondary-color);
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            background: var(--primary-color);
            color: white;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: 0;
            right: 0;
            background: var(--dark-bg);
            padding: 1rem;
            transform: translateY(-100%);
            opacity: 0;
            transition: var(--transition);
            z-index: 999;
        }
        .mobile-nav.active {
            transform: translateY(0);
            opacity: 1;
        }
        .mobile-nav a {
            display: block;
            color: white;
            padding: 1rem;
            text-decoration: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: linear-gradient(135deg, var(--light-bg), #e2e8f0);
            padding: 1rem 1.5rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #cbd5e1;
        }
        .breadcrumb a {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        @media (max-width: 1024px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            margin-bottom: 2rem;
            padding-bottom: 1.5rem;
            border-bottom: 2px solid #e2e8f0;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .article-meta i {
            color: var(--primary-color);
        }
        .featured-image {
            width: 100%;
            margin: 2rem 0;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.5s ease;
        }
        .featured-image img:hover {
            transform: scale(1.03);
        }
        .content-section {
            margin-bottom: 3rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e0f2fe, #f0f9ff);
            border-left: 4px solid var(--primary-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .tip-box {
            background: linear-gradient(135deg, #fef3c7, #fffbeb);
            border: 2px solid var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: var(--border-radius);
        }
        .tip-box i {
            color: #d97706;
            margin-right: 0.5rem;
        }
        .content-link {
            color: var(--primary-dark);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--primary-color);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--primary-color);
            border-bottom-style: solid;
        }
        .search-widget {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            margin-bottom: 1.5rem;
            position: sticky;
            top: 100px;
        }
        .search-widget h3 {
            margin-top: 0;
            color: var(--primary-dark);
        }
        .search-form {
            display: flex;
            margin-top: 1rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #cbd5e1;
            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-color);
        }
        .search-btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: var(--primary-dark);
        }
        .rating-section, .comment-section {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            margin: 2rem 0;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 2rem;
            color: #cbd5e1;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars label:hover,
        .rating-stars label:hover ~ label,
        .rating-stars input:checked ~ label {
            color: var(--accent-color);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #cbd5e1;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
        }
        .submit-btn {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(124, 58, 237, 0.3);
        }
        .site-footer {
            background: var(--dark-bg);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        friend-link {
            display: block;
            color: #cbd5e1;
            text-decoration: none;
            margin-bottom: 0.8rem;
            transition: var(--transition);
            padding: 0.3rem 0;
        }
        friend-link:hover {
            color: var(--secondary-color);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #94a3b8;
            font-size: 0.9rem;
        }
        .text-gradient {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-weight: 700;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .bold-highlight {
            background: linear-gradient(120deg, #fef3c7 0%, #fef3c7 100%);
            background-repeat: no-repeat;
            background-size: 100% 40%;
            background-position: 0 90%;
            font-weight: 700;
            padding: 0 0.2rem;
        }
        @media (max-width: 768px) {
            .header-container, .container {
                padding: 0 1rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .submit-btn {
                width: 100%;
            }
        }