* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: #0066cc; transition: color 0.3s; }
        a:hover { color: #ff6600; }
        ul, ol { padding-left: 1.5em; margin: 1em 0; }
        li { margin-bottom: 0.5em; }
        h1 { font-size: 2.8rem; color: #1a1a1a; margin-bottom: 1rem; line-height: 1.2; }
        h2 { font-size: 2.2rem; color: #2d2d2d; margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid #eaeaea; }
        h3 { font-size: 1.8rem; color: #3a3a3a; margin: 2rem 0 1rem; }
        h4 { font-size: 1.4rem; color: #4a4a4a; margin: 1.5rem 0 0.75rem; }
        p { margin-bottom: 1.2em; font-size: 1.1rem; }
        .lead { font-size: 1.3rem; font-weight: 300; color: #555; }
        .highlight { background-color: #fff9e6; padding: 0.2em 0.4em; border-radius: 3px; font-weight: 600; }
        .emoji { font-size: 1.2em; margin-right: 0.3em; }
        .last-update { font-style: italic; color: #777; font-size: 0.95rem; margin-top: 2rem; padding-top: 1rem; border-top: 1px dashed #ccc; }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .main-grid { grid-template-columns: 1fr; }
        }
        .site-header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', Gadget, sans-serif;
            font-size: 2.2rem;
            color: #00bfff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover { color: #ff9900; }
        .my-logo i { font-size: 2rem; }
        .nav-desktop { display: flex; gap: 1.5rem; }
        .nav-desktop a {
            color: #e0e0e0;
            font-weight: 500;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            color: #00bfff;
            border-bottom-color: #00bfff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            .nav-mobile {
                display: none;
                flex-direction: column;
                background: #16213e;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                padding: 1rem;
                box-shadow: 0 5px 10px rgba(0,0,0,0.2);
            }
            .nav-mobile.active { display: flex; }
            .nav-mobile a {
                color: #e0e0e0;
                padding: 0.75rem;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #f1f3f5;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { color: #0066cc; }
        .breadcrumb span { color: #888; }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-top: 2rem;
        }
        .featured-image {
            width: 100%;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .sidebar {
            margin-top: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            color: #1a1a1a;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-control {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: #00bfff;
            box-shadow: 0 0 0 3px rgba(0, 191, 255, 0.2);
        }
        .btn {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            background: linear-gradient(to right, #0066cc, #00bfff);
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn:hover {
            background: linear-gradient(to right, #0052a3, #0099cc);
            transform: translateY(-2px);
            box-shadow: 0 5px 12px rgba(0, 102, 204, 0.3);
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            font-size: 1.5rem;
            color: #ffcc00;
            margin: 0.5rem 0;
        }
        .rating-stars i { cursor: pointer; }
        .site-footer {
            background: #1a1a2e;
            color: #ccc;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-widget h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.5rem;
        }
        friend-link a {
            color: #aaa;
        }
        friend-link a:hover {
            color: #00bfff;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #888;
        }
        .accordion {
            border: 1px solid #eaeaea;
            border-radius: 8px;
            overflow: hidden;
            margin: 1.5rem 0;
        }
        .accordion-header {
            padding: 1.2rem;
            background: #f8f9fa;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .accordion-header:hover {
            background: #e9ecef;
        }
        .accordion-content {
            padding: 0 1.2rem;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease-out, padding 0.3s;
        }
        .accordion.active .accordion-content {
            padding: 1.2rem;
            max-height: 1000px;
        }
        .tooltip {
            position: relative;
            border-bottom: 1px dotted #0066cc;
            cursor: help;
        }
        .tooltip-text {
            visibility: hidden;
            width: 250px;
            background-color: #333;
            color: white;
            text-align: center;
            border-radius: 6px;
            padding: 0.5rem;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 0.9rem;
        }
        .tooltip:hover .tooltip-text {
            visibility: visible;
            opacity: 1;
        }