* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        footer {
            background-color: #f8f9fa;
            border-top: 1px solid #e9ecef;
            padding: 2rem 1rem;
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            font-size: 0.9rem;
            color: #2c3e4f;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
        }
        /* 使用 Grid 实现三栏自适应 */
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            align-items: start;
            text-align: left;
        }
        /* 中间导航区域文字居中 */
        .footer-nav {
            text-align: center;
        }
        /* 右侧联系方式区域居右（桌面端） */
        .footer-contact {
            text-align: right;
        }
        /* 小屏幕下转为堆叠布局 */
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
                text-align: center;
            }
            .footer-contact {
                text-align: center;
            }
            .wechat-area {
                align-items: center;
            }
            .footer-logo {
                text-align: center;
            }
        }
        /* 公用样式：段落间距 */
        .footer-grid p {
            margin: 0.4rem 0;
            line-height: 1.5;
        }
        /* 链接样式 */
        a {
            color: #2c6b9e;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1e4a76;
            text-decoration: underline;
        }
        /* 导航链接组 */
        .nav-links {
            margin-top: 0.8rem;
        }
        .nav-links a {
            margin: 0 0.5rem;
        }
        /* 电话样式（突出显示） */
        .phone-number {
            font-size: 1.1rem;
            font-weight: 600;
            color: #d9534f;
            background: #fff0ef;
            padding: 0.2rem 0.6rem;
            border-radius: 30px;
            display: inline-block;
            margin-top: 0.25rem;
        }
        .phone-number a {
            color: #d9534f;
            text-decoration: none;
        }
        .phone-number a:hover {
            text-decoration: underline;
        }
        /* 微信区域（二维码 + 微信号 + 提示） */
        .wechat-area {
            display: inline-flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 0.4rem;
            margin-top: 1rem;
        }
        @media (max-width: 768px) {
            .wechat-area {
                align-items: center;
            }
        }
        .qrcode {
            width: 85px;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
            transition: transform 0.2s ease;
            background: white;
            padding: 4px;
        }
        .qrcode:hover {
            transform: scale(1.02);
        }
        .wechat-id {
            font-size: 0.85rem;
            font-weight: 500;
            background: #e9ecef;
            padding: 0.2rem 0.6rem;
            border-radius: 20px;
            color: #2c3e4f;
        }
        .wechat-text {
            font-size: 0.7rem;
            color: #6c757d;
        }
        /* 主办单位等小字号辅助信息 */
        .small-meta {
            font-size: 0.8rem;
            color: #6c757d;
        }
        /* Logo 样式 */
        .footer-logo {
            margin-bottom: 1rem;
        }
        .footer-logo img {
            max-width: 140px;
            height: auto;
            display: block;
        }
        @media (max-width: 768px) {
            .footer-logo img {
                max-width: 120px;
                margin: 0 auto;
            }
        }
        hr {
            margin: 1.5rem 0 1rem;
            border: none;
            border-top: 1px solid #e2e6ea;
        }
        .copyright {
            text-align: center;
            font-size: 0.8rem;
            color: #6c757d;
            margin-top: 1.5rem;
        }