/* Đặt kiểu dáng cho trang liên hệ */
        /* Kiểu dáng riêng cho trang liên hệ */
        .contact-section {
            padding: 80px 0;
            text-align: center;
            background: rgba(0, 0, 0, 0.7);
            border-radius: 10px;
            margin-top: 50px;
            margin-bottom: 50px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }

        .contact-section h1 {
            font-size: 38px;
            color: #f9d16b;
            margin-bottom: 30px;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
        }

        .contact-info {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
            margin-bottom: 40px;
        }

        .contact-item {
            background: rgba(249, 209, 107, 0.1);
            padding: 25px;
            border-radius: 8px;
            border: 1px solid rgba(249, 209, 107, 0.3);
            width: 100%;
            max-width: 300px;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .contact-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 0 20px rgba(249, 209, 107, 0.4);
        }

        .contact-item i {
            font-size: 40px;
            color: #f9d16b;
            margin-bottom: 15px;
        }

        .contact-item h3 {
            font-size: 22px;
            color: #fff;
            margin-bottom: 10px;
        }

        .contact-item p {
            font-size: 16px;
            color: #e8e8e8;
            line-height: 1.5;
        }
        
        .contact-item a {
            color: #e8e8e8;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .contact-item a:hover {
            color: #f9d16b;
        }

        .contact-form {
            max-width: 700px;
            margin: 0 auto;
            text-align: left;
            background: rgba(255, 255, 255, 0.05);
            padding: 30px;
            border-radius: 10px;
            border: 1px solid rgba(249, 209, 107, 0.2);
        }

        .contact-form h2 {
            font-size: 28px;
            color: #f9d16b;
            margin-bottom: 25px;
            text-align: center;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 16px;
            color: #f9d16b;
            margin-bottom: 8px;
            font-weight: bold;
        }

        .form-group input,
        .form-group textarea {
            width: calc(100% - 20px); /* Điều chỉnh để có padding */
            padding: 12px 10px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid #f9d16b;
            border-radius: 5px;
            color: #e8e8e8;
            font-size: 16px;
            outline: none;
            transition: border-color 0.3s ease;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #ffd700;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        .submit-button {
            display: inline-block;
            padding: 15px 35px;
            background: #f9d16b;
            color: #000;
            text-decoration: none;
            text-transform: uppercase;
            font-size: 18px;
            border-radius: 5px;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: bold;
            letter-spacing: 1px;
        }

        .submit-button:hover {
            background: #ffd700;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(249, 209, 107, 0.4);
        }

        /* Responsive cho trang liên hệ */
        @media screen and (max-width: 768px) {
            .contact-section {
                padding: 40px 0;
                margin-top: 30px;
                margin-bottom: 30px;
            }
            .contact-section h1 {
                font-size: 32px;
            }
            .contact-info {
                flex-direction: column;
                align-items: center;
            }
            .contact-item {
                max-width: 90%;
            }
            .contact-form {
                padding: 20px;
            }
            .contact-form h2 {
                font-size: 24px;
            }
            .form-group input,
            .form-group textarea {
                width: calc(100% - 20px);
            }
            .submit-button {
                padding: 12px 25px;
                font-size: 16px;
            }
        }

        @media screen and (max-width: 480px) {
            .contact-section h1 {
                font-size: 28px;
            }
            .contact-item {
                padding: 20px;
            }
            .contact-item i {
                font-size: 32px;
            }
            .contact-item h3 {
                font-size: 18px;
            }
            .contact-item p {
                font-size: 14px;
            }
            .contact-form {
                padding: 15px;
            }
            .contact-form h2 {
                font-size: 20px;
            }
            .form-group label {
                font-size: 14px;
            }
            .form-group input,
            .form-group textarea {
                font-size: 14px;
                padding: 10px;
            }
            .submit-button {
                font-size: 14px;
                padding: 10px 20px;
            }
        }