* { 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: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #2563eb; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #1d4ed8; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5em; margin-bottom: 1.5em; }
        p, li { margin-bottom: 1em; }
        h1, h2, h3, h4 { color: #1e293b; margin-bottom: 0.75em; font-weight: 700; line-height: 1.3; }
        h1 { font-size: 2.8rem; border-bottom: 4px solid #f59e0b; padding-bottom: 0.3em; }
        h2 { font-size: 2.2rem; margin-top: 2.5rem; padding-left: 0.5rem; border-left: 5px solid #3b82f6; }
        h3 { font-size: 1.8rem; margin-top: 2rem; color: #475569; }
        h4 { font-size: 1.4rem; margin-top: 1.5rem; color: #64748b; }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(90deg, #1e3a8a 0%, #3b82f6 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i { color: #fbbf24; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #dbeafe;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 5px;
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #f1f5f9;
            padding: 0.8rem 0;
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin-left: 0.5rem;
            color: #94a3b8;
        }
        .main-content {
            flex: 1;
            padding: 2rem 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-grid { grid-template-columns: 1fr; }
        }
        .article-body {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget h3 {
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
            outline: none;
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
        }
        button, .btn {
            background: linear-gradient(90deg, #10b981 0%, #34d399 100%);
            color: white;
            border: none;
            padding: 1rem 1.5rem;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }
        button:hover, .btn:hover {
            background: linear-gradient(90deg, #0da271 0%, #2bb884 100%);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(16, 185, 129, 0.3);
            text-decoration: none;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 0.5rem 0;
            font-size: 1.8rem;
            color: #fbbf24;
            cursor: pointer;
        }
        .stars i:hover { transform: scale(1.2); }
        .featured-image {
            margin: 2.5rem 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: 12px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            transition: transform 0.5s ease;
        }
        .featured-image img:hover {
            transform: scale(1.02);
        }
        .image-caption {
            font-style: italic;
            color: #64748b;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #dbeafe 0%, #eff6ff 100%);
            border-left: 5px solid #3b82f6;
            padding: 1.8rem;
            margin: 2.5rem 0;
            border-radius: 0 10px 10px 0;
        }
        .tip { background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%); border-left-color: #10b981; }
        .warning { background: linear-gradient(135deg, #fef3c7 0%, #fef9c3 100%); border-left-color: #f59e0b; }
        .link-list {
            columns: 2;
            column-gap: 2rem;
            margin: 2rem 0;
        }
        .link-list li { break-inside: avoid; margin-bottom: 0.8rem; }
        .site-footer {
            background: linear-gradient(90deg, #1e293b 0%, #334155 100%);
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            color: white;
            margin-bottom: 1rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
        friend-link {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 0.6rem 1.2rem;
            border-radius: 6px;
            transition: all 0.3s;
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #475569;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .main-nav ul {
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #1e3a8a;
                padding: 1rem;
                display: none;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active ul { display: flex; }
            .hamburger { display: block; }
            .article-body, .sidebar { padding: 1.5rem; }
            .link-list { columns: 1; }
        }
        @media print {
            .site-header, .sidebar, .site-footer, .hamburger { display: none; }
            body { background: white; }
            .container { max-width: 100%; }
        }