* {
            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: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: #1a5fb4;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e95420;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            border: 0;
        }
        .site-header {
            background: linear-gradient(90deg, #0c4b8f 0%, #1a73e8 100%);
            color: white;
            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;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 900;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
        }
        .logo .fa-trophy {
            color: #FFD700;
        }
        .nav-desktop ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-desktop a {
            color: #e0e0e0;
            font-weight: 600;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            color: white;
            border-bottom-color: #FFD700;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            background: #0c4b8f;
            padding: 20px;
            border-top: 1px solid #2a8bf2;
        }
        .nav-mobile.active {
            display: block;
        }
        .nav-mobile ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .nav-mobile a {
            color: #e0e0e0;
            display: block;
            padding: 10px;
            border-radius: 5px;
        }
        .nav-mobile a:hover {
            background: rgba(255, 255, 255, 0.1);
            color: white;
        }
        .breadcrumb {
            background: #f0f8ff;
            padding: 12px 20px;
            border-bottom: 1px solid #d1e3ff;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 8px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 8px;
            color: #888;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 20px;
            background: white;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.05);
            border-radius: 8px;
            margin: 30px auto;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content h1 {
            font-size: 2.8rem;
            color: #0c4b8f;
            margin-bottom: 25px;
            line-height: 1.2;
            border-bottom: 3px solid #FFD700;
            padding-bottom: 15px;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            border-bottom: 1px dashed #ccc;
            margin-bottom: 30px;
            font-size: 0.95rem;
            color: #666;
        }
        .update-time {
            background: #e8f4ff;
            padding: 5px 10px;
            border-radius: 4px;
        }
        .article-content h2 {
            font-size: 2rem;
            color: #1a73e8;
            margin: 35px 0 20px;
            padding-left: 10px;
            border-left: 5px solid #e95420;
        }
        .article-content h3 {
            font-size: 1.6rem;
            color: #333;
            margin: 30px 0 15px;
        }
        .article-content h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 25px 0 12px;
        }
        .article-content p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.05rem;
        }
        .article-content emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .highlight-box {
            background: linear-gradient(120deg, #fdfbfb 0%, #ebedee 100%);
            border-left: 5px solid #1a73e8;
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 8px 8px 0;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        }
        .internal-links {
            background: #f9f9f9;
            padding: 20px;
            border-radius: 8px;
            margin: 25px 0;
        }
        .internal-links h3 {
            margin-top: 0;
        }
        .internal-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 12px;
            list-style: none;
        }
        .internal-links li:before {
            content: "▶";
            color: #1a73e8;
            margin-right: 10px;
            font-size: 0.8em;
        }
        .featured-image {
            margin: 30px 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: 10px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
            border: 5px solid white;
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .sidebar-widget {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            border-radius: 10px;
            padding: 25px;
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            color: #0c4b8f;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #FFD700;
        }
        .search-form {
            display: flex;
            margin-bottom: 10px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #cbd5e0;
            border-right: none;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-form button {
            background: #1a73e8;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #0c4b8f;
        }
        .rating-form,
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .stars {
            display: flex;
            gap: 8px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin-bottom: 10px;
        }
        .stars .active {
            color: #FFD700;
        }
        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 2px solid #cbd5e0;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #1a73e8;
        }
        .submit-btn {
            background: linear-gradient(90deg, #e95420 0%, #ff6b3d 100%);
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(233, 84, 32, 0.3);
        }
        .site-footer {
            background: #0c4b8f;
            color: white;
            padding: 50px 20px 30px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 900;
            margin-bottom: 20px;
        }
        .footer-links h4 {
            color: #FFD700;
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #cbd5e0;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.1);
            padding: 20px;
            border-radius: 8px;
            margin: 25px 0;
        }
        friend-link h4 {
            color: #FFD700;
            margin-bottom: 15px;
        }
        friend-link a {
            color: #a0c8ff;
            display: inline-block;
            margin-right: 15px;
            margin-bottom: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #2a8bf2;
            color: #a0c8ff;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .article-content h1 {
                font-size: 2.2rem;
            }
            .article-content h2 {
                font-size: 1.8rem;
            }
            .article-content h3 {
                font-size: 1.4rem;
            }
            .main-content {
                padding: 25px 15px;
                margin: 20px auto;
                gap: 30px;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }