* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
            max-width: 100%;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { color: #1a5fb4; margin-bottom: 1rem; font-weight: 700; line-height: 1.3; }
        h1 { font-size: 2.8rem; margin-top: 1.5rem; }
        h2 { font-size: 2.2rem; margin-top: 2.5rem; padding-bottom: 0.5rem; border-bottom: 2px solid #e0e0e0; }
        h3 { font-size: 1.8rem; margin-top: 2rem; color: #2d7bc9; }
        h4 { font-size: 1.4rem; margin-top: 1.5rem; color: #4a8fd8; }
        p { margin-bottom: 1.5rem; font-size: 1.125rem; }
        a { color: #1a5fb4; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e85d00; text-decoration: underline; }
        strong { font-weight: 700; color: #000; }
        em { font-style: italic; }
        blockquote {
            border-left: 5px solid #1a5fb4;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: #555;
            background: #f0f7ff;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-top: 2rem;
        }
        @media (max-width: 992px) {
            .main-grid { grid-template-columns: 1fr; }
        }
        .site-header {
            background: linear-gradient(135deg, #1a5fb4 0%, #2d7bc9 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-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i { color: #ffd43b; }
        .my-logo:hover { color: #ffd43b; text-decoration: none; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover { color: #ffd43b; text-decoration: none; }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #ffd43b;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                background: #1a5fb4;
                padding: 2rem;
                transition: left 0.4s ease;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active { left: 0; }
            .main-nav ul {
                flex-direction: column;
                gap: 1.5rem;
            }
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #f0f7ff;
            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: #888;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { color: #1a5fb4; }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .intro {
            font-size: 1.3rem;
            color: #444;
            background: #f0f7ff;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 2.5rem;
            border-left: 5px solid #e85d00;
        }
        .featured-image {
            margin: 2.5rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .caption { text-align: center; font-style: italic; color: #666; margin-top: 0.5rem; font-size: 0.95rem; }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget { margin-bottom: 2.5rem; }
        .widget-title {
            font-size: 1.4rem;
            color: #1a5fb4;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e0e0e0;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group { display: flex; flex-direction: column; }
        label { font-weight: 600; margin-bottom: 0.5rem; color: #444; }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            font-family: inherit;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #1a5fb4;
            box-shadow: 0 0 0 3px rgba(26, 95, 180, 0.2);
        }
        button, .btn {
            background: linear-gradient(to right, #1a5fb4, #2d7bc9);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #e85d00, #f57c00);
            transform: translateY(-2px);
            box-shadow: 0 7px 14px rgba(232, 93, 0, 0.25);
            text-decoration: none;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
        }
        .star-rating input { display: none; }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
            margin-bottom: 0;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label { color: #ffd43b; }
        .comments-list { margin-top: 2rem; }
        .comment {
            background: #f9f9f9;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
            border-left: 4px solid #2d7bc9;
        }
        .comment-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            color: #777;
            margin-bottom: 0.8rem;
        }
        friend-link {
            display: block;
            background: #f0f7ff;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            border: 1px dashed #2d7bc9;
        }
        friend-link h3 { color: #1a5fb4; margin-top: 0; }
        friend-link ul { list-style: none; display: flex; flex-wrap: wrap; gap: 1.5rem; margin-top: 1rem; }
        friend-link li { background: white; padding: 0.8rem 1.5rem; border-radius: 50px; border: 1px solid #ccc; transition: all 0.3s; }
        friend-link li:hover { border-color: #1a5fb4; background: #e6f0ff; transform: translateY(-3px); }
        .site-footer {
            background: #1a1a1a;
            color: #ddd;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .copyright {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            width: 100%;
            font-size: 0.95rem;
            color: #aaa;
        }
        .text-center { text-align: center; }
        .last-updated {
            font-size: 0.9rem;
            color: #777;
            font-style: italic;
            margin-bottom: 2rem;
            padding: 0.5rem;
            background: #f5f5f5;
            border-radius: 5px;
            display: inline-block;
        }
        .highlight {
            background: linear-gradient(120deg, #ffd43b20 0%, #ffd43b20 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .stats-box {
            background: linear-gradient(135deg, #e6f0ff, #f0f7ff);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            border: 2px solid #2d7bc9;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin-top: 1rem;
        }
        .stat-item { text-align: center; }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: #1a5fb4;
            line-height: 1;
        }
        .stat-label { font-size: 1rem; color: #666; }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .article-content, .sidebar { padding: 1.5rem; }
            .main-grid { gap: 2rem; }
            .header-container { padding: 0 15px; }
        }