* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            color: #333;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .site-header {
            background: linear-gradient(90deg, #2c3e50 0%, #4a6491 100%);
            color: white;
            padding: 1rem 2rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            max-width: 1300px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffd700;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo span {
            background: linear-gradient(90deg, #ffd700, #ffed4e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .nav-desktop a:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            width: 100%;
            background: #2c3e50;
            padding: 1rem;
            border-radius: 0 0 10px 10px;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            padding: 0.8rem;
            border-bottom: 1px solid #4a6491;
        }
        .breadcrumb {
            max-width: 1300px;
            margin: 1rem auto;
            padding: 0 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #4a6491;
            text-decoration: none;
        }
        .container {
            max-width: 1300px;
            margin: 2rem auto;
            padding: 0 2rem;
            flex: 1;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 1024px) {
            .container {
                grid-template-columns: 1fr;
            }
        }
        .main-content {
            background: white;
            border-radius: 15px;
            padding: 3rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }
        .sidebar {
            background: white;
            border-radius: 15px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            color: #2c3e50;
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 5px solid #ffd700;
            padding-left: 1rem;
        }
        h2 {
            color: #4a6491;
            font-size: 2rem;
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #e4edf5;
        }
        h3 {
            color: #2c3e50;
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(120deg, #ffed4e30 0%, #ffed4e10 100%);
            padding: 2rem;
            border-radius: 10px;
            border-left: 4px solid #ffd700;
            margin: 2rem 0;
        }
        .tip-box {
            background: #e8f4fd;
            border: 1px solid #4a9ae9;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1.5rem 0;
        }
        .warning {
            background: #fff8e8;
            border: 1px solid #ffc107;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1.5rem 0;
        }
        ul, ol {
            margin: 1.5rem 0;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        .article-image {
            width: 100%;
            border-radius: 12px;
            margin: 2.5rem auto;
            display: block;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            transition: transform 0.4s ease;
            max-width: 900px;
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(90deg, #ff8a00, #ffd700);
            color: #2c3e50;
            padding: 0.9rem 2rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            box-shadow: 0 4px 12px rgba(255, 138, 0, 0.3);
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 18px rgba(255, 138, 0, 0.4);
        }
        .btn-secondary {
            background: linear-gradient(90deg, #4a6491, #2c3e50);
            color: white;
            box-shadow: 0 4px 12px rgba(44, 62, 80, 0.3);
        }
        a {
            color: #4a9ae9;
            text-decoration: none;
            font-weight: 600;
        }
        a:hover {
            text-decoration: underline;
        }
        .search-box {
            margin: 2rem 0;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #e4edf5;
            border-radius: 50px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .search-input:focus {
            outline: none;
            border-color: #4a9ae9;
        }
        .search-btn {
            background: #4a6491;
            color: white;
            border: none;
            border-radius: 50px;
            padding: 0 1.8rem;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: #2c3e50;
        }
        .comment-section, .rating-section {
            margin: 3rem 0;
            padding: 2rem;
            background: #f9fbfd;
            border-radius: 12px;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #4a6491;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #4a9ae9;
            box-shadow: 0 0 0 3px rgba(74, 154, 233, 0.1);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 1rem 0;
            font-size: 1.8rem;
            color: #ffd700;
        }
        .star {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .star:hover {
            transform: scale(1.2);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin: 3rem 0 2rem;
            padding: 2rem;
            background: white;
            border-radius: 12px;
        }
        @media (max-width: 768px) {
            .web-links {
                grid-template-columns: 1fr;
            }
        }
        .web-link {
            background: #f5f7fa;
            padding: 1.2rem;
            border-radius: 8px;
            border-left: 4px solid #4a6491;
        }
        .web-link a {
            color: #2c3e50;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: #ff8a00;
        }
        .site-footer {
            background: #2c3e50;
            color: #ddd;
            padding: 3rem 2rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1300px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #4a6491;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .site-header, .container, .breadcrumb {
                padding: 1rem;
            }
            .main-content {
                padding: 2rem 1.5rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .btn {
                padding: 0.8rem 1.5rem;
            }
        }