:root {
            --uno-red: #e63946;
            --uno-yellow: #f1c40f;
            --uno-green: #2ecc71;
            --uno-blue: #3498db;
            --dark-text: #2c3e50;
            --light-bg: #f8f9fa;
            --border-radius: 12px;
            --max-width: 1200px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            color: var(--dark-text);
            background: #fff;
            line-height: 1.75;
            font-size: 16px;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        a {
            color: var(--uno-blue);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: var(--uno-red);
            text-decoration: underline;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header.my-header {
            background: linear-gradient(135deg, var(--uno-red) 0%, #c0392b 100%);
            color: white;
            padding: 20px 0;
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }
        a.my-logo {
            font-size: 32px;
            font-weight: 900;
            color: white;
            text-decoration: none;
            letter-spacing: -1px;
            font-family: 'Arial Black', sans-serif;
            text-transform: uppercase;
            display: flex;
            align-items: center;
        }
        a.my-logo i {
            margin-right: 8px;
            font-size: 36px;
            color: var(--uno-yellow);
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .search-box {
            display: flex;
            gap: 0;
            border-radius: 50px;
            overflow: hidden;
            background: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
        }
        .search-box input {
            border: none;
            padding: 10px 20px;
            font-size: 14px;
            width: 180px;
            outline: none;
        }
        .search-box button {
            background: var(--uno-yellow);
            border: none;
            padding: 10px 20px;
            cursor: pointer;
            color: #333;
            font-size: 16px;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: #d4ac0d;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid white;
            color: white;
            padding: 8px 12px;
            font-size: 20px;
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.3s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        nav.primary-nav {
            background: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            border-bottom: 3px solid var(--uno-yellow);
        }
        .nav-list {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            list-style: none;
            padding: 10px 0;
        }
        .nav-list li {
            margin: 0;
        }
        .nav-list a {
            display: block;
            padding: 10px 20px;
            font-weight: 600;
            color: var(--dark-text);
            text-decoration: none;
            font-size: 15px;
            transition: all 0.3s;
            border-radius: 30px;
            margin: 0 4px;
        }
        .nav-list a:hover {
            background: var(--uno-red);
            color: white;
            text-decoration: none;
        }
        .breadcrumb {
            background: var(--light-bg);
            padding: 12px 0;
            font-size: 14px;
            border-bottom: 1px solid #eee;
        }
        .breadcrumb a {
            color: var(--uno-blue);
            text-decoration: none;
        }
        .breadcrumb span {
            color: #777;
        }
        main {
            padding: 40px 0;
            background: #fff;
        }
        .hero {
            text-align: center;
            padding: 60px 20px;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            border-radius: var(--border-radius);
            margin-bottom: 40px;
            position: relative;
            overflow: hidden;
        }
        .hero h1 {
            font-size: 48px;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--dark-text);
            font-weight: 900;
        }
        .hero h1 span {
            color: var(--uno-red);
        }
        .hero p {
            font-size: 20px;
            color: #555;
            max-width: 800px;
            margin: 0 auto 30px;
        }
        .hero-badge {
            display: inline-block;
            background: var(--uno-green);
            color: white;
            border-radius: 50px;
            padding: 8px 25px;
            font-weight: 700;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .feature-card {
            background: var(--light-bg);
            border-radius: var(--border-radius);
            padding: 30px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
        }
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .feature-card i {
            font-size: 48px;
            margin-bottom: 15px;
            color: var(--uno-red);
        }
        .feature-card h3 {
            font-size: 20px;
            margin-bottom: 10px;
        }
        .feature-card p {
            color: #666;
            font-size: 14px;
        }
        .content-section {
            max-width: 900px;
            margin: 0 auto 40px;
            padding: 0 20px;
        }
        .content-section h2 {
            font-size: 32px;
            margin: 50px 0 20px;
            color: var(--dark-text);
            border-left: 5px solid var(--uno-red);
            padding-left: 20px;
            font-weight: 800;
        }
        .content-section h3 {
            font-size: 24px;
            margin: 30px 0 15px;
            color: #2c3e50;
            font-weight: 700;
        }
        .content-section h4 {
            font-size: 20px;
            margin: 20px 0 10px;
            color: #555;
            font-weight: 600;
        }
        .content-section p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .content-section ul,
        .content-section ol {
            margin: 20px 0 20px 40px;
        }
        .content-section li {
            margin-bottom: 10px;
        }
        .content-section img {
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 30px 0;
            width: 100%;
        }
        .tip-box {
            background: #fff3cd;
            border-left: 4px solid var(--uno-yellow);
            padding: 20px 25px;
            border-radius: 0 6px 6px 0;
            margin: 25px 0;
        }
        .warning-box {
            background: #f8d7da;
            border-left: 4px solid var(--uno-red);
            padding: 20px 25px;
            border-radius: 0 6px 6px 0;
            margin: 25px 0;
        }
        .success-box {
            background: #d4edda;
            border-left: 4px solid var(--uno-green);
            padding: 20px 25px;
            border-radius: 0 6px 6px 0;
            margin: 25px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0 30px;
        }
        table th,
        table td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #e0e0e0;
        }
        table th {
            background: var(--uno-red);
            color: white;
            font-weight: 600;
        }
        table tr:hover {
            background: #f5f5f5;
        }
        .comments-section,
        .rating-section {
            max-width: 900px;
            margin: 0 auto 50px;
            padding: 0 20px;
        }
        .comments-section h2,
        .rating-section h2 {
            font-size: 28px;
            margin-bottom: 25px;
            border-bottom: 2px solid #eee;
            padding-bottom: 10px;
        }
        .comment-form,
        .rating-form {
            background: var(--light-bg);
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 8px;
            font-size: 14px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 14px;
            transition: border-color 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--uno-blue);
            outline: none;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background: var(--uno-red);
            color: white;
            border: none;
            padding: 14px 40px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
        }
        .submit-btn:hover {
            background: #c0392b;
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.4);
        }
        .star-rating {
            display: flex;
            gap: 8px;
            font-size: 30px;
            cursor: pointer;
            color: #ddd;
            transition: color 0.2s;
        }
        .star-rating i.active,
        .star-rating i:hover {
            color: var(--uno-yellow);
        }
        footer {
            background: #2c3e50;
            color: white;
            padding: 50px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-grid h4 {
            font-size: 18px;
            margin-bottom: 15px;
            color: var(--uno-yellow);
        }
        .footer-grid a {
            color: #ccc;
            display: block;
            padding: 4px 0;
            font-size: 14px;
        }
        .footer-grid a:hover {
            color: var(--uno-yellow);
        }
        friend-link {
            display: block;
            background: #34495e;
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 30px;
            font-size: 14px;
            line-height: 2;
        }
        friend-link a {
            color: #ccc;
            margin-right: 15px;
        }
        friend-link a:hover {
            color: var(--uno-yellow);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            font-size: 14px;
            color: #aaa;
        }
        .copyright a {
            color: #ddd;
            text-decoration: underline;
        }
        .jump-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--uno-red);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.4);
            cursor: pointer;
            z-index: 999;
            transition: all 0.3s;
            opacity: 0;
            visibility: hidden;
        }
        .jump-top.show {
            opacity: 1;
            visibility: visible;
        }
        .jump-top:hover {
            background: #c0392b;
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 20px;
                right: 20px;
            }
            .header-right {
                flex-direction: column;
                width: 100%;
                padding-top: 15px;
            }
            .search-box {
                width: 100%;
            }
            .search-box input {
                flex: 1;
                width: auto;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 0;
            }
            .nav-list.active {
                display: flex;
            }
            .nav-list a {
                padding: 15px;
                text-align: center;
                border-radius: 0;
                margin: 0;
                border-bottom: 1px solid #eee;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero p {
                font-size: 16px;
            }
            .content-section h2 {
                font-size: 26px;
            }
            .content-section h3 {
                font-size: 20px;
            }
            .content-section,
            .comments-section,
            .rating-section {
                padding: 0 15px;
            }
            table {
                font-size: 14px;
                overflow-x: auto;
                display: block;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 26px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }