* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ed 100%);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
        }
        @media (max-width: 992px) {
            .main-grid { grid-template-columns: 1fr; }
        }
        .site-header {
            background: linear-gradient(90deg, #0a2e5c 0%, #1a4b8c 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-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: bold;
            letter-spacing: 1px;
            color: #00b7ff;
            text-decoration: none;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            transition: all 0.3s ease;
        }
        .my-logo:hover {
            color: #ffffff;
            text-shadow: 0 0 10px #00b7ff;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li { margin-left: 1.8rem; }
        .main-nav a {
            color: #c5d4eb;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0.3rem;
            border-bottom: 2px solid transparent;
            transition: all 0.3s;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #ffffff;
            border-bottom-color: #00b7ff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: #1a4b8c;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease-in-out;
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .main-nav ul {
                flex-direction: column;
                padding: 1rem;
            }
            .main-nav li {
                margin: 0.7rem 0;
                text-align: center;
            }
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #666;
        }
        .breadcrumb a {
            color: #1a4b8c;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        main { padding: 2rem 0; }
        article {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #0a2e5c;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 5px solid #00b7ff;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #1a4b8c;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #e0e6ef;
        }
        h3 {
            font-size: 1.6rem;
            color: #2c5282;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #4a5568;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.25rem;
            color: #2d3748;
            font-weight: 500;
            background: #f0f9ff;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid #00b7ff;
        }
        strong {
            color: #0a2e5c;
            font-weight: 700;
        }
        em { color: #4a5568; }
        .highlight-box {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            border-left: 5px solid #ff6b6b;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .content-link {
            color: #2b6cb0;
            text-decoration: underline wavy #00b7ff;
            font-weight: 600;
            transition: all 0.2s;
        }
        .content-link:hover {
            color: #1a4b8c;
            background-color: #ebf8ff;
            text-decoration: underline solid;
        }
        .article-img {
            width: 100%;
            border-radius: 10px;
            margin: 2.5rem auto;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            transition: transform 0.5s ease;
        }
        .article-img:hover {
            transform: scale(1.01);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        aside {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            align-self: start;
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget-title {
            font-size: 1.4rem;
            color: #0a2e5c;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #00b7ff;
        }
        .search-form, .comment-form, .rating-form {
            background: #f8fafc;
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px solid #e2e8f0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #4a5568;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #cbd5e0;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #00b7ff;
            box-shadow: 0 0 0 3px rgba(0, 183, 255, 0.2);
        }
        .btn {
            background: linear-gradient(90deg, #00b7ff, #0088cc);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
            display: inline-block;
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(90deg, #0088cc, #006699);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active { color: #ffc107; }
        .site-footer {
            background: #0a2e5c;
            color: #cbd5e0;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #ffffff;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            border-bottom: 1px solid #2d3748;
            padding-bottom: 0.5rem;
        }
        friend-link {
            display: block;
            color: #00b7ff;
            text-decoration: none;
            margin-bottom: 0.8rem;
            transition: color 0.3s;
        }
        friend-link:hover {
            color: #ffffff;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            width: 100%;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 3rem; }
        .last-updated {
            font-size: 0.9rem;
            color: #718096;
            font-style: italic;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #e2e8f0;
        }
        .emoji { font-size: 1.2em; }