* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #0a84ff;
            --secondary-color: #ff3b30;
            --accent-color: #32d74b;
            --dark-bg: #1c1c1e;
            --light-bg: #f2f2f7;
            --text-primary: #ffffff;
            --text-secondary: #8e8e93;
            --card-bg: #2c2c2e;
            --border-color: #3a3a3c;
            --shadow: 0 4px 12px rgba(0,0,0,0.3);
            --transition: all 0.3s ease;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: var(--text-primary);
            background-color: var(--dark-bg);
            overflow-x: hidden;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0a84ff 0%, #0066cc 100%);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: linear-gradient(45deg, #ff3b30, #ff9500);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            padding: 5px 10px;
            border-radius: 5px;
            transition: var(--transition);
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 20px;
            transition: var(--transition);
        }
        .nav-link:hover {
            background: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: var(--card-bg);
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin-left: 0.5rem;
            color: var(--text-secondary);
        }
        main {
            padding: 2rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 1rem;
            background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
        }
        .content-section {
            background: var(--card-bg);
            padding: 2rem;
            border-radius: 12px;
            margin-bottom: 2rem;
            border: 1px solid var(--border-color);
        }
        h2 {
            color: var(--primary-color);
            margin: 2rem 0 1rem;
            font-size: 2rem;
            border-bottom: 2px solid var(--primary-color);
            padding-bottom: 0.5rem;
        }
        h3 {
            color: var(--accent-color);
            margin: 1.5rem 0 1rem;
            font-size: 1.5rem;
        }
        h4 {
            color: var(--secondary-color);
            margin: 1rem 0;
            font-size: 1.2rem;
        }
        p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(10,132,255,0.1) 0%, rgba(50,215,75,0.1) 100%);
            padding: 1.5rem;
            border-left: 4px solid var(--primary-color);
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .inline-link {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--primary-color);
            transition: var(--transition);
        }
        .inline-link:hover {
            color: var(--accent-color);
            border-bottom-style: solid;
        }
        .feature-card {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .card {
            background: linear-gradient(145deg, #2c2c2e, #242426);
            padding: 2rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .card:hover {
            transform: translateY(-5px);
            border-color: var(--primary-color);
        }
        .card-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .search-container {
            position: relative;
            margin: 2rem 0;
        }
        #searchForm {
            display: flex;
        }
        #searchInput {
            flex: 1;
            padding: 12px 20px;
            border: 2px solid var(--border-color);
            background: var(--card-bg);
            color: var(--text-primary);
            border-radius: 25px 0 0 25px;
            font-size: 1rem;
        }
        #searchButton {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 0 25px 25px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        #searchButton:hover {
            background: #007aff;
        }
        .interactive-section {
            background: var(--card-bg);
            padding: 2rem;
            border-radius: 12px;
            margin: 3rem 0;
        }
        .rating-system {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .stars {
            display: flex;
            gap: 5px;
        }
        .star {
            color: #ffd700;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover {
            transform: scale(1.2);
        }
        textarea, input[type="text"], input[type="email"] {
            width: 100%;
            padding: 12px;
            margin: 10px 0;
            background: var(--dark-bg);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            color: var(--text-primary);
        }
        .submit-btn {
            background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 25px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .submit-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(10,132,255,0.3);
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 12px;
            margin: 2rem auto;
            display: block;
            box-shadow: var(--shadow);
            border: 2px solid var(--border-color);
        }
        footer {
            background: linear-gradient(135deg, #1c1c1e 0%, #000000 100%);
            padding: 3rem 0 1rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
        }
        friend-link a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        friend-link a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                gap: 1rem;
            }
            .main-nav {
                flex-direction: column;
                align-items: center;
                display: none;
                width: 100%;
            }
            .main-nav.active {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
                position: absolute;
                right: 20px;
                top: 20px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .feature-card {
                grid-template-columns: 1fr;
            }
            .card {
                padding: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .content-section {
            animation: fadeIn 0.6s ease-out;
        }
        .text-center { text-align: center; }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .bold { font-weight: 700; color: var(--accent-color); }
        .last-updated {
            background: var(--secondary-color);
            color: white;
            padding: 10px 20px;
            border-radius: 20px;
            display: inline-block;
            font-weight: 600;
            margin: 1rem 0;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            background: var(--card-bg);
            border-radius: 8px;
            overflow: hidden;
        }
        .data-table th, .data-table td {
            padding: 12px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        .data-table th {
            background: var(--primary-color);
            color: white;
            font-weight: 600;
        }
        .data-table tr:hover {
            background: rgba(10,132,255,0.1);
        }