/* ==========================================================================
            6. 页脚区域
            ========================================================================== */
            footer {
                border-top: 1px solid #dddddd;
                padding: 30px 0 50px 0;
                background-color: #ffffff;
            }

            .footer-wrapper {
                display: flex;
                justify-content: space-between;
                align-items: flex-start;
                flex-wrap: wrap;
                gap: 20px;
            }

            .footer-left {
                display: flex;
                flex-direction: column;
                gap: 12px;
            }

            .footer-links {
                display: flex;
                flex-wrap: wrap;
                gap: 10px;
                font-size: 15px;
                color: #555555;
            }

            .footer-links span {
                color: #cccccc;
            }

            .copyright, .powered-by {
                font-size: 14px;
                color: #777777;
            }

            .footer-right {
                font-size: 15px;
                color: #444444;
                font-weight: 500;
            }