* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f8f9fa;
            background-image: linear-gradient(180deg, #e3f2fd 0%, #f8f9fa 100px);
            padding-bottom: 40px;
        }
        a {
            color: #1a73e8;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0d47a1;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .emoji { font-size: 1.2em; }
        .section-spacing {
            margin-top: 3rem;
            margin-bottom: 3rem;
        }
        .site-header {
            background: linear-gradient(135deg, #2c3e50 0%, #1a237e 100%);
            color: white;
            padding: 1.5rem 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-size: 2.2rem;
            font-weight: 800;
            color: #4fc3f7;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
            font-family: 'Arial Black', Gadget, sans-serif;
            letter-spacing: 1px;
        }
        .my-logo span {
            color: #64dd17;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            background: transparent;
            border: none;
            padding: 5px;
        }
        .hamburger span {
            width: 30px;
            height: 3px;
            background: #4fc3f7;
            margin: 4px 0;
            border-radius: 2px;
            transition: 0.3s;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #bbdefb;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover {
            background-color: rgba(79, 195, 247, 0.2);
            color: white;
            text-decoration: none;
        }
        .breadcrumb {
            background-color: #e8f4fd;
            padding: 1rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #b3e5fc;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: #666;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-top: 2rem;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.07);
        }
        .article-header {
            border-bottom: 3px solid #1a73e8;
            padding-bottom: 1.5rem;
            margin-bottom: 2.5rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #0d47a1;
            line-height: 1.2;
            margin-bottom: 0.8rem;
        }
        .article-meta {
            color: #666;
            font-size: 0.95rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .last-updated {
            color: #d32f2f;
            font-weight: 600;
        }
        h2 {
            font-size: 2rem;
            color: #1565c0;
            margin-top: 2.5rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #bbdefb;
        }
        h3 {
            font-size: 1.6rem;
            color: #1976d2;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #2196f3;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 500;
            color: #2c3e50;
            background-color: #e8f4fd;
            padding: 1.5rem;
            border-left: 5px solid #1a73e8;
            border-radius: 0 8px 8px 0;
            margin-bottom: 2.5rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e1f5fe 0%, #f3e5f5 100%);
            border-left: 6px solid #7b1fa2;
            padding: 1.8rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
        }
        .featured-image {
            width: 80%;
            margin: 2.5rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            border: 5px solid white;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .link-list {
            background-color: #f1f8e9;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .link-list h4 {
            color: #33691e;
        }
        .link-list ul {
            list-style-position: inside;
            columns: 2;
        }
        .link-list li {
            margin-bottom: 0.5rem;
        }
        .sidebar {
            background: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.07);
            height: fit-content;
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget-title {
            font-size: 1.4rem;
            color: #0d47a1;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #bbdefb;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.9rem;
            border: 2px solid #bbdefb;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: #1a73e8;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background-color: #0d47a1;
        }
        .rating-form label,
        .comment-form label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .rating-form select,
        .rating-form textarea,
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 2px solid #bbdefb;
            border-radius: 6px;
            font-family: inherit;
        }
        .rating-form button,
        .comment-form button {
            background-color: #4caf50;
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
            width: 100%;
        }
        .rating-form button:hover,
        .comment-form button:hover {
            background-color: #388e3c;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin-bottom: 1rem;
            font-size: 1.8rem;
            color: #ffb300;
        }
        .site-footer {
            background: linear-gradient(135deg, #2c3e50 0%, #1a237e 100%);
            color: #bbdefb;
            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-widget h3 {
            color: #4fc3f7;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.05);
            padding: 0.8rem;
            margin-bottom: 0.8rem;
            border-radius: 6px;
            border-left: 4px solid #4fc3f7;
            transition: all 0.3s;
        }
        friend-link:hover {
            background-color: rgba(79, 195, 247, 0.15);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #455a64;
            font-size: 0.9rem;
            color: #90a4ae;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 90px;
                left: 0;
                width: 100%;
                background-color: #2c3e50;
                padding: 1rem;
                transform: translateY(-150%);
                transition: transform 0.4s ease;
                z-index: 999;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active {
                transform: translateY(0);
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
                border-bottom: 1px solid #455a64;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .link-list ul {
                columns: 1;
            }
            article {
                padding: 1.8rem;
            }
        }
        @media (max-width: 576px) {
            .article-meta {
                flex-direction: column;
            }
            h1 { font-size: 2rem; }
            .featured-image {
                width: 100%;
            }
        }