* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #2563eb;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1d4ed8;
        }
        ul {
            list-style: none;
        }
        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; }
        .highlight {
            background-color: #fef3c7;
            padding: 2px 5px;
            border-radius: 3px;
        }
        .emoji { margin-right: 5px; }
        header {
            background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 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-size: 2rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: #fbbf24;
        }
        .desktop-nav ul {
            display: flex;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: #fbbf24;
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: #1e3a8a;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            padding: 0.8rem 0;
            border-bottom: 1px solid #2563eb;
            font-weight: 600;
        }
        .breadcrumb {
            background-color: #e5e7eb;
            padding: 0.8rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin: 0 10px;
            color: #6b7280;
        }
        .search-section {
            background-color: #f1f5f9;
            padding: 2rem 0;
            margin: 1rem 0;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-button {
            background: linear-gradient(to right, #2563eb, #1d4ed8);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s ease;
        }
        .search-button:hover {
            background: linear-gradient(to right, #1d4ed8, #1e40af);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
        }
        h1 {
            color: #1e3a8a;
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            color: #2563eb;
            font-size: 1.8rem;
            margin: 2.5rem 0 1rem 0;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e5e7eb;
        }
        h3 {
            color: #374151;
            font-size: 1.4rem;
            margin: 2rem 0 1rem 0;
        }
        h4 {
            color: #4b5563;
            font-size: 1.1rem;
            margin: 1.5rem 0 0.8rem 0;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.1rem;
            color: #4b5563;
            background-color: #f0f9ff;
            padding: 1.5rem;
            border-left: 5px solid #2563eb;
            border-radius: 0 8px 8px 0;
            margin-bottom: 2rem;
        }
        .article-image {
            width: 100%;
            border-radius: 10px;
            margin: 2rem auto;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #6b7280;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .internal-links {
            background-color: #fefce8;
            border: 1px dashed #fbbf24;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .internal-links h3 {
            margin-top: 0;
            color: #ca8a04;
        }
        .internal-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 0.8rem;
        }
        .internal-links li a {
            color: #3b82f6;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .internal-links li a:hover {
            text-decoration: underline;
        }
        aside {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            font-size: 1.2rem;
            color: #1e3a8a;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #f3f4f6;
            margin-bottom: 1rem;
        }
        .update-time {
            background-color: #dcfce7;
            color: #166534;
            padding: 1rem;
            border-radius: 8px;
            font-weight: 600;
            text-align: center;
        }
        .rating-widget, .comment-widget {
            background-color: #f9fafb;
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px solid #e5e7eb;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
            justify-content: center;
        }
        .star {
            font-size: 1.8rem;
            color: #d1d5db;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #fbbf24;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 1px solid #d1d5db;
            border-radius: 6px;
            font-size: 1rem;
        }
        textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(to right, #10b981, #059669);
            color: white;
            border: none;
            padding: 0.9rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, #059669, #047857);
        }
        footer {
            background: linear-gradient(to right, #1e293b, #0f172a);
            color: #cbd5e1;
            padding: 3rem 0 1.5rem 0;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: white;
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
        }
        .footer-links ul li {
            margin-bottom: 0.7rem;
        }
        .footer-links a {
            color: #94a3b8;
        }
        .footer-links a:hover {
            color: #60a5fa;
        }
        friend-link {
            display: block;
            background-color: #1e293b;
            border: 1px solid #334155;
            padding: 1.5rem;
            border-radius: 8px;
            margin-top: 2rem;
        }
        friend-link h3 {
            color: #fbbf24;
            margin-bottom: 1rem;
        }
        friend-link ul {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        friend-link li a {
            color: #60a5fa;
            padding: 0.5rem 1rem;
            background-color: #334155;
            border-radius: 4px;
            display: inline-block;
        }
        friend-link li a:hover {
            background-color: #475569;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #334155;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .hamburger { display: block; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            article, aside { padding: 1.5rem; }
            .header-container, .footer-content {
                padding: 0 15px;
            }
            .internal-links ul {
                grid-template-columns: 1fr;
            }
        }