/* Reset通用元素样式 */
        body, div, img, input, button, a, span {
            margin: 0;
            padding: 0;
            font-family: "Arial", "sans-serif";
        }

        /* 新增背景特效容器 */
        .background-effects {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1; /* 确保在内容下方 */
            overflow: hidden;
            pointer-events: none; /* 不影响鼠标交互 */
        }

        /* 气泡样式和动画 */
        .bubble {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            animation: float linear infinite;
        }

        @keyframes float {
            0% { transform: translateY(100vh) translateX(0) scale(1); opacity: 0; }
            10% { opacity: 1; }
            90% { opacity: 0.8; }
            100% { transform: translateY(-100px) translateX(var(--drift, 0px)) scale(0.2); opacity: 0; }
        }

        body {
            background: linear-gradient(135deg, #ffd8cb, #a2cfff);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            align-items: center;
            padding: 20px 0 40px;
            color: #333;
            position: relative;
        }

        .xz_cen {
            max-width: 640px;
            width: 95%;
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 12px 24px rgba(0,0,0,0.12);
            overflow: hidden;
            z-index: 1;
        }

        .xz_cen_img img {
            display: block;
            width: 100%;
            height: auto;
            border-top-left-radius: 12px;
            border-top-right-radius: 12px;
            object-fit: cover;
        }

        .xz_cen_ul { padding: 20px 5%; }

        .reg_lb { width: 100%; text-align: left; margin: 10px auto 20px; }

        .reg_lb_li {
            width: 100%;
            overflow: hidden;
            margin-bottom: 30px;
            border-radius: 8px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.08);
            transition: box-shadow 0.3s ease;
        }
        .reg_lb_li:hover { box-shadow: 0 8px 18px rgba(0,0,0,0.15); }

        .reg_lb_li_tit {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 18px;
            color: #1a1a1a;
            padding-left: 12px;
        }

        .reg_lb_li_cen {
            display: flex;
            align-items: center;
            padding: 25px 20px 25px 0;
            background-color: #fafafa;
            border-radius: 8px;
            text-decoration: none;
            color: inherit;
            position: relative;
            transition: background-color 0.3s ease;
        }
        .reg_lb_li_cen:hover { background-color: #e6f0ff; }

        .reg_tuijian { position: absolute; top: 0; left: 0; }
        .reg_tuijian img { border-radius: 8px 0 0 0; }

        .reg_lb_li_cen dt {
            width: 175px;
            text-align: center;
            margin-right: 20px;
            flex-shrink: 0;
        }
        .reg_lb_li_cen dt img { width: 80px; display: block; margin: 0 auto; }
        .reg_lb_li_cen dt span {
            display: block;
            font-size: 16px;
            font-weight: 700;
            margin-top: 15px;
            color: #0a3d91;
        }

        .reg_lb_li_cen dd { width: calc(100% - 175px); }
        .reg_lb_li_cen ul li { display: flex; align-items: center; }
        .reg_lb_li_cen ul li img {
            width: 22px;
            height: 22px;
            margin-right: 10px;
        }
        .reg_lb_li_cen ul li:nth-child(2) { margin: 10px 0; }
        .reg_span1 { font-weight: 600; margin-right: 10px; width: 90px; }
        .reg_span2 { flex: 1; }

        .notice-box {
            width: 90%;
            margin: 0 auto 25px;
            padding: 15px 20px;
            background-color: #fff4e5;
            border: 1.5px solid #ffc87c;
            border-radius: 8px;
            color: #b36b00;
            font-size: 15px;
            font-weight: 600;
            text-align: center;
            box-shadow: 0 3px 10px rgba(255,168,0,0.25);
        }

        @media screen and (max-width:640px) {
            .reg_lb_li_cen { display: block; padding: 25px 0; }
            .reg_lb_li_cen dt { width: auto; margin-bottom: 20px; margin-right: 0; }
            .reg_lb_li_cen dt img { width: 65px; }
            .reg_lb_li_cen dd { width: 95%; margin-left: 5%; }
            .reg_span1 { width: 70px; display: block; margin-right: 0; }
            .reg_span2 { width: calc(100% - 95px); display: block; }
            .reg_lb_li_cen ul li:nth-child(2) { margin: 6px 0; }
            .reg_lb { width: 90%; }
            .reg_lb_li_tit { font-size: 16px; padding-left: 8px; }
            
            /* 移动端保持不可缩放 */
            body {
                touch-action: pan-y;
            }
        }

        /* 新增版权信息样式 */
        .copyright {
            font-size: 12px;
            color: rgba(0,0,0,0.6);
            text-align: center;
            margin-top: 20px;
            padding: 10px 0;
            width: 100%;
            z-index: 1;
        }
        .copyright a { text-decoration: none; color: inherit; }

        /* PC端：允许滚动，保持响应式设计 */
        @media (min-width: 641px) {
          html, body {
            height: auto;
            min-height: 100vh;
            overflow-x: hidden;
            overflow-y: auto;
          }
          body {
            box-sizing: border-box;
            padding: 20px 0 40px;
          }
          .xz_cen_ul {
            padding: 16px 5%;
          }
          .reg_lb_li {
            margin-bottom: 24px;
          }
          .copyright {
            margin-top: 20px;
          }
        }