html,
body {
    font-size: 2.4vw;
    font-family: system-ui, -apple-system, "BlinkMacSystemFont", "Segoe UI", "Roboto", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol" !important;
    background: transparent;
    height: 100vh;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
}

.header {
    /* font-family: "Roboto"; */
    font-weight: 700;
    font-size: 20px;
    text-align: center;
    color: #ffffffe6;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    line-height: 24px;
    position: fixed;
    left: 0;
    width: 100%;
    z-index: 999;
}

.header img {
    width: 4rem;
    height: 4rem;
    border-radius: 1rem;
    margin-left: 2rem;
}

.header a {
    /* font-family: "Roboto"; */
    font-weight: 400;
    font-size: 1.5rem;
    line-height: 2.4rem;
    text-align: right;
    margin-right: 2.4rem;
    color: #00b9ef;
}

.header div {
    text-align: center;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
}

.header_little {
    font-size: 1.8rem !important;
}

.header_mini {
    font-size: 1.2rem !important;
}

.container {
    /* width: 37.5rem; */
    width: 100%;
    margin-top: 4.4rem;
    text-align: center;
    position: fixed;
    box-sizing: border-box;
    left: 50%;
    height: calc(100vh - 4.4rem);
    overflow-y: auto;
    transform: translateX(-50%);
}

.container::-webkit-scrollbar {
    display: none;
}

.mainbox1 {
    /* width: 31rem; */
    margin: 0 3.25rem;
}

.mainbox2 {
    /* width: 32rem; */
    margin: 0 2.75rem;
}

.mainbox3 {
    /* width: 33rem; */
    margin: 0 2.25rem;
}

.btn {
    /* font-family: "Roboto Bold"; */
    font-weight: 700;
    font-size: 1.5rem;
    text-align: center;
    color: #f9fcff;
    position: absolute;
    left: 50%;
    bottom: 3.6rem;
    outline: none;
    width: 21rem;
    height: 4.4rem;
    border: none;
    border-radius: 2.2rem;
    background: #0070cf;
    box-shadow: 0 0.6rem 1.2rem #0c2c3b14;
    transform: translateX(-50%);
    position: fixed;
}

.btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

#overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #192328;
    opacity: 0.8;
    /* 半透明黑色背景 */
    z-index: 9998;
    /* 确保遮罩层在背景之上，但低于确认对话框 */
}

.context {
    /* font-family: "Roboto"; */
    font-weight: 400;
    font-size: 1.5rem;
    line-height: 2.4rem;
    text-align: left;
    color: #ffffffe6;
    padding-top: 1rem;
    padding-bottom: 8rem;
}

.link {
    color: #00b9ef;
    cursor: pointer;
}

.bigtitle {
    color: #ffffffe6;
    font-size: 1.8rem;
    /* font-family: "Roboto"; */
    font-weight: 700;
    letter-spacing: 0;
}

.title {
    font-weight: 700;
}

.smalltitle {
    /* font-family: "Roboto"; */
    font-weight: 400;
    font-size: 1.4rem;
    line-height: 2rem;
    text-align: left;
    color: #ffffffe6;
}