* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 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; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); margin-bottom: 1.5rem; line-height: 1.2; color: #1a237e; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin: 2.5rem 0 1.2rem; color: #283593; border-bottom: 2px solid #e8eaf6; padding-bottom: 0.5rem; }
        h3 { font-size: clamp(1.4rem, 3vw, 1.8rem); margin: 2rem 0 1rem; color: #3949ab; }
        h4 { font-size: 1.3rem; margin: 1.5rem 0 0.8rem; color: #5c6bc0; }
        p, li { font-size: 1.125rem; margin-bottom: 1.2rem; }
        a { color: #3949ab; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #1a237e; text-decoration: underline; }
        strong { color: #1a237e; font-weight: 700; }
        .last-updated { font-style: italic; color: #666; margin-bottom: 2rem; }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .content-wrapper { grid-template-columns: 1fr; }
        }
        .site-header {
            background: linear-gradient(135deg, #1a237e 0%, #3949ab 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;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .logo a:hover { text-decoration: none; color: #c5cae9; }
        .logo-icon { color: #ffd54f; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e8eaf6;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover { color: #ffd54f; }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #ffd54f;
            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;
        }
        #nav-toggle { display: none; }
        .breadcrumb {
            background: #e8eaf6;
            padding: 0.8rem 0;
            font-size: 0.95rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #5c6bc0;
        }
        .breadcrumb a { color: #3949ab; }
        .main-article {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
        }
        .article-featured-img {
            width: 100%;
            border-radius: 8px;
            margin: 2rem 0;
            border: 1px solid #e0e0e0;
        }
        .highlight-box {
            background: #f3e5f5;
            border-left: 5px solid #7b1fa2;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }
        .widget h3 { margin-top: 0; font-size: 1.4rem; }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group { display: flex; flex-direction: column; gap: 0.5rem; }
        input, textarea, select {
            padding: 0.85rem;
            border: 1px solid #c5cae9;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3949ab;
            box-shadow: 0 0 0 3px rgba(57, 73, 171, 0.2);
        }
        button, .btn {
            background: #3949ab;
            color: white;
            border: none;
            padding: 0.9rem 1.5rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        button:hover, .btn:hover {
            background: #1a237e;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.15);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffd54f;
            margin: 0.5rem 0;
        }
        .star-rating label { cursor: pointer; }
        .star-rating input { display: none; }
        .site-footer {
            background: #1a237e;
            color: #e8eaf6;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-links h4 { color: #ffd54f; margin-bottom: 1.2rem; }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 0.7rem; }
        .footer-links a { color: #c5cae9; }
        .footer-links a:hover { color: #ffd54f; }
        friend-link {
            display: block;
            background: #283593;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 1.5rem 0;
            border-left: 5px solid #ffd54f;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #3949ab;
            font-size: 0.95rem;
            color: #9fa8da;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav ul {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: #1a237e;
                flex-direction: column;
                align-items: center;
                padding: 2rem;
                gap: 1.5rem;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease;
                box-shadow: 0 10px 20px rgba(0,0,0,0.2);
                z-index: 999;
            }
            #nav-toggle:checked ~ .main-nav ul {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .header-container { padding: 0 1rem; }
            .main-article, .widget { padding: 1.5rem; }
            .content-wrapper { gap: 2rem; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
        }