.online_submit_button {
    display: inline-flex;          /* 改为弹性容器 */
    align-items: center;           /* 垂直绝对居中 */
    justify-content: center;       /* 水平绝对居中 */
    background: linear-gradient(to bottom, #0076d1 0%, #00529e 100%);
    width: 240px;
    border: 1px solid #00407a;
    color: white !important;
    padding: 0;                    /* 清空内边距，全权交由 flex 控制 */
    margin: 10px;
    text-decoration: none;
    font-size: 22px;
    cursor: pointer;
    border-radius: 10px;
    height: 60px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.3);
    vertical-align: middle;
    font-family: "Trebuchet MS", Trebuchet, Arial, Helvetica, sans-serif;
    box-sizing: border-box;        /* 确保边框和 padding 不撑破宽高 */
}

.online_submit_button:hover {
    background: linear-gradient(to bottom, #0088f5 0%, #0063b2 100%);
    text-decoration: none;
    color: white !important;
}

.link_btn {
    display: inline-block;
    line-height: 60px; /* Vertically center text */
    padding: 0px;
}

.pc_side_btn {
    width: 90%;
    margin:0px;
    height:40px;
    line-height: 40px;
    font-size: 18px;
}