* { 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%, #e4edf5 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #1a5fb4; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #0d4a9c; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(90deg, #0c3a6d 0%, #1a5fb4 100%);
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffdd00;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            letter-spacing: -1px;
        }
        .my-logo span { color: white; }
        .nav-desktop { display: flex; gap: 2rem; }
        .nav-desktop a {
            color: #e0f2ff;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-desktop a:hover {
            background: rgba(255, 255, 255, 0.15);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #0c3a6d;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .nav-mobile.active { display: flex; }
        .nav-mobile a {
            color: #e0f2ff;
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .breadcrumb {
            background: #e9f2fb;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #c5d9f0;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { color: #1a5fb4; }
        .main-container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
            flex: 1;
        }
        @media (max-width: 1024px) {
            .main-container { grid-template-columns: 1fr; }
        }
        .content-area {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .article-header { margin-bottom: 2.5rem; }
        .article-header h1 {
            font-size: 2.8rem;
            color: #0c3a6d;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta-info {
            color: #666;
            font-size: 0.95rem;
            border-bottom: 2px solid #eaeaea;
            padding-bottom: 1rem;
            margin-bottom: 1.5rem;
        }
        .last-updated { font-weight: 600; color: #1a5fb4; }
        h2 {
            font-size: 2rem;
            color: #1a5fb4;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eaeaea;
        }
        h3 {
            font-size: 1.6rem;
            color: #333;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .highlight {
            background: #fff9e6;
            border-left: 5px solid #ffdd00;
            padding: 1.2rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
            font-weight: 500;
        }
        .key-term {
            font-weight: 800;
            color: #0c3a6d;
            font-style: italic;
        }
        .emoji { margin-right: 0.5rem; }
        .article-img {
            width: 80%;
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        }
        .article-img figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.8rem;
            background: #f9f9f9;
        }
        .interactive-box {
            background: #f0f8ff;
            border: 1px solid #c5d9f0;
            border-radius: 10px;
            padding: 2rem;
            margin: 2.5rem 0;
        }
        .interactive-box h3 { margin-top: 0; color: #1a5fb4; }
        .form-group { margin-bottom: 1.2rem; }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .form-control {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #bbb;
            border-radius: 6px;
            font-size: 1rem;
        }
        .btn {
            background: linear-gradient(90deg, #1a5fb4, #0c3a6d);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 6px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .btn:hover {
            background: linear-gradient(90deg, #0c3a6d, #1a5fb4);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.15);
        }
        .star-rating {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin: 0.5rem 0;
        }
        .star-rating .fas { margin-right: 0.3rem; }
        .star-rating .active { color: #ffc107; }
        .sidebar {
            background: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            align-self: start;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: #0c3a6d;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eaeaea;
        }
        .related-links li {
            list-style: none;
            margin-bottom: 0.9rem;
            padding-left: 1.2rem;
            position: relative;
        }
        .related-links li:before {
            content: '⚽';
            position: absolute;
            left: 0;
        }
        .site-footer {
            background: #0c3a6d;
            color: #c5d9f0;
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-widget h4 {
            color: #ffdd00;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 1rem 0;
        }
        friend-link {
            background: rgba(255, 255, 255, 0.1);
            padding: 0.6rem 1.2rem;
            border-radius: 4px;
            display: inline-block;
        }
        friend-link a { color: #e0f2ff; }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #a0c0e0;
        }
        @media (max-width: 768px) {
            .header-container { padding: 0.5rem 1rem; }
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            .main-container { padding: 0 1rem; gap: 1.5rem; }
            .content-area, .sidebar { padding: 1.5rem; }
            .article-header h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.4rem; }
            .article-img { width: 100%; }
        }