:root {
            --primary-dark: #0a2e5c; 
            --primary-light: #1e88e5;
            --accent: #ff9800; 
            --neutral-light: #f5f7fa;
            --neutral-dark: #333;
            --text-primary: #222;
            --text-secondary: #555;
            --success: #4caf50;
            --warning: #ffc107;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 3rem;
            --spacing-xl: 5rem;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: #fff;
            max-width: 1600px;
            margin: 0 auto;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            padding: 0 var(--spacing-sm);
            margin: 0 auto;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #1565c0 100%);
            color: white;
            padding: var(--spacing-sm) 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }
        .my-logo a:hover {
            color: var(--accent);
        }
        .my-logo i {
            color: var(--accent);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: var(--spacing-md);
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--accent);
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--neutral-light);
            padding: var(--spacing-sm);
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .breadcrumb span {
            color: var(--neutral-dark);
        }
        .user-modules {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-md);
            margin: var(--spacing-lg) 0;
            padding: var(--spacing-md);
            background: var(--neutral-light);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .module {
            background: white;
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            border-top: 4px solid var(--primary-light);
        }
        .module h3 {
            margin-bottom: var(--spacing-sm);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }
        .module form {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .module input,
        .module textarea,
        .module select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .module input:focus,
        .module textarea:focus,
        .module select:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 2px rgba(30, 136, 229, 0.2);
        }
        .module button {
            background-color: var(--primary-light);
            color: white;
            border: none;
            padding: 0.8rem var(--spacing-md);
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .module button:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #ddd;
            margin-bottom: var(--spacing-sm);
        }
        .star-rating label {
            cursor: pointer;
        }
        .star-rating input {
            display: none;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--warning);
        }
        .main-content {
            padding: var(--spacing-lg) 0;
        }
        article {
            max-width: 1200px;
            margin: 0 auto;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-dark);
            margin-bottom: var(--spacing-md);
            line-height: 1.2;
            border-bottom: 3px solid var(--accent);
            padding-bottom: var(--spacing-sm);
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-dark);
            margin: var(--spacing-lg) 0 var(--spacing-md);
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed #ccc;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--primary-light);
            margin: var(--spacing-md) 0 var(--spacing-sm);
        }
        h4 {
            font-size: 1.3rem;
            color: var(--text-secondary);
            margin: var(--spacing-sm) 0;
        }
        p {
            margin-bottom: var(--spacing-md);
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--primary-dark);
            background-color: #e3f2fd;
            padding: var(--spacing-md);
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin-bottom: var(--spacing-lg);
        }
        .highlight {
            background-color: #fff8e1;
            padding: var(--spacing-sm) var(--spacing-md);
            border-left: 4px solid var(--warning);
            margin: var(--spacing-md) 0;
            font-weight: 500;
        }
        strong {
            color: var(--primary-dark);
        }
        em {
            color: var(--text-secondary);
        }
        ul, ol {
            margin-left: var(--spacing-lg);
            margin-bottom: var(--spacing-md);
        }
        li {
            margin-bottom: 0.5rem;
        }
        .img-container {
            margin: var(--spacing-lg) auto;
            text-align: center;
            max-width: 800px;
            box-shadow: var(--box-shadow);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .img-container img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .img-container img:hover {
            transform: scale(1.02);
        }
        .caption {
            font-style: italic;
            color: var(--text-secondary);
            padding: var(--spacing-sm);
            background-color: var(--neutral-light);
            font-size: 0.9rem;
        }
        .schedule-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: var(--spacing-md);
            margin: var(--spacing-lg) 0;
        }
        .match-card {
            background: white;
            border: 1px solid #e0e0e0;
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            transition: var(--transition);
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .match-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0,0,0,0.1);
            border-color: var(--primary-light);
        }
        .match-teams {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .match-score {
            font-size: 1.3rem;
            color: var(--accent);
            font-weight: 700;
        }
        .match-info {
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            justify-content: space-between;
            border-top: 1px dotted #eee;
            padding-top: 0.5rem;
        }
        .group-table {
            width: 100%;
            border-collapse: collapse;
            margin: var(--spacing-md) 0 var(--spacing-lg);
            box-shadow: var(--box-shadow);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .group-table th {
            background-color: var(--primary-dark);
            color: white;
            padding: 1rem;
            text-align: left;
            font-weight: 600;
        }
        .group-table tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        .group-table tr:hover {
            background-color: #e3f2fd;
        }
        .group-table td {
            padding: 0.8rem 1rem;
            border-bottom: 1px solid #eee;
        }
        .qualified {
            font-weight: 700;
            color: var(--success);
        }
        .update-time {
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-secondary);
            background-color: var(--neutral-light);
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            margin: var(--spacing-lg) 0;
        }
        .site-footer {
            background-color: var(--primary-dark);
            color: white;
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
        }
        .footer-links h4 {
            color: white;
            margin-bottom: var(--spacing-sm);
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            margin-top: var(--spacing-sm);
        }
        friend-link h4 {
            color: var(--accent);
            margin-bottom: var(--spacing-sm);
        }
        friend-link ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: var(--spacing-sm);
        }
        friend-link li {
            margin-bottom: 0;
        }
        friend-link a {
            display: block;
            padding: 0.5rem;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 4px;
            transition: var(--transition);
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: var(--spacing-md);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.4rem; }
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
                order: 1;
            }
            .my-logo {
                order: 0;
            }
            .main-nav {
                order: 2;
                flex-basis: 100%;
                margin-top: var(--spacing-sm);
                display: none;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .main-nav a {
                display: block;
                padding: var(--spacing-sm);
            }
            .user-modules {
                grid-template-columns: 1fr;
                padding: var(--spacing-sm);
            }
            .schedule-grid {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
            friend-link ul {
                grid-template-columns: 1fr;
            }
        }