index.css

@media (min-width: 48px) {
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden; /* 防止横向滚动 */
}

body {
    background-image: url('/wallhaven-m3eyyk.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
}

/* 主容器 */
.hello {
    position: absolute;
    width: 90%; /* 使用百分比，使其适应不同屏幕 */
    max-width: 500px; /* 设置最大宽度，防止在大屏幕上过宽 */
    height: auto; /* 高度自动适应内容 */
    background-color: rgba(255, 228, 196, 0.7);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 20px;
    padding: 20px; /* 为内容添加内边距 */
    box-sizing: border-box;
}

/* 作者信息的容器 */
.author {
    box-sizing: border-box;
    position: relative; /* 改为相对定位，更适合响应式布局 */
    top: 0;
    height: auto;
    width: 100%; /* 宽度设置为100% */
    background-color: orange;
    padding: 10px;
    border-radius: 10px;
    text-align: center; /* 内容居中 */
    margin-bottom: 20px; /* 底部添加间距 */
}

.newpage {
    text-decoration: none;
    font-size: 1.2rem;
}

、

/* 按钮区域 */
.button {
    display: flex;
    justify-content: space-between;
    margin: 20px 0;
}

.inbutton {
    flex: 1;
    margin: 0 10px; /* 按钮之间添加间距 */
    height: 50px; /* 固定高度 */
    border: 0;
    border-radius: 10px;
    font-size: 1.5rem;
    color: rgba(0, 0, 0, 0.7);
    cursor: pointer;
}

.left {
    background-color: rgb(250, 143, 113);
}

.left:hover {
    background-color: rgba(250, 143, 113, 0.7);
}

.right {
    background-color: rgb(129, 214, 207);
}

.right:hover {
    background-color: rgba(129, 214, 207, 0.7);
}

.makenot {
    width: 100%; /* 宽度设置为100% */
    height: 50px;
    margin: 20px 0;
    border: 0;
    border-radius: 10px;
    font-size: 1.5rem;
    color: rgba(0, 0, 0, 0.7);
    background-color: rgb(248, 232, 174);
    cursor: pointer;
}

/* 单词展示 */
.word {
    font-size: 2rem; /* 调整字体大小以适应屏幕 */
    text-align: center;
}

/* 右上角固定按钮 */
.github-corner {
    width: 50px;
    height: 50px;
}

@media (min-width: 768px) {
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background-image: url('/wallhaven-m3eyyk.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
}
.hello{
    position: absolute;
    width: 500px;
    height: 300px;
    background-color:rgba(255,228,196,0.7);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -90%);/* 向右x，向下y */
    border-radius:20px;
} 
.author{
    box-sizing: border-box;
    position: fixed;
    top: 100px;
    height: 60px;
    width: 230px;
    background-color:orange;
    margin-left: -390px;
    padding-top: 17px;
    border-radius: 10px;
}
.newpage {
    padding-left: 13px;
    text-decoration: none;
    font-size: 20px;
}
a:hover {
    color: black;
}

.button{
    position: fixed;
    width: 500px;
    height: 100px;
    top: 330px;
}
.inbutton{
    width: 200px;
    height: 80px;
    border: 0;
    border-radius:10px;
    font-size: 2rem;
    color: rgba(0,0,0,0.7);
    cursor: pointer;
}
.left{
    float: left; 
    background-color:rgb(250,143,113);
}
.left:hover{
    background-color:rgba(250,143,113,0.7);
}
.right{
    float: right;
    background-color:rgb(129,214,207);
}
.right:hover {
    background-color: rgba(129,214,207,0.7);
}
.makenot{
    position: fixed;
    width: 500px;
    height: 100px;
    top: 450px;
    left: 0;

    border: 0;
    border-radius: 10px;
    font-size: 2rem;
    color: rgba(0, 0, 0, 0.7);
    background-color:rgb(248,232,174);

    cursor: pointer;
}


.word{
    font-size: 50px;
}
#map0{
    position: absolute;
    top: 10%;
    left: 50%;
    transform: translate(-50%, -50%);
}
#map1{
    margin-left: 30px;
    font-size: 20px;
}

.notlist{
    position: fixed;
    width: 250px;
    height: 600px;
    top: -50px;
    left: 670px;
    border-radius: 10px; 
    padding: 10px;
    background-color: rgba(255, 228, 196, 0.7);
    overflow-y: scroll;/* 滚轮 */
}

.now{
    position: fixed;
    width: 450px;
    height: 100px;
    top: 230px;
    left: -495px;
    border-radius: 10px;

    background-color: rgb(254,167,141);
}
.nownum{
    padding-left: 13px;
    font-size: 30px;
    font-weight: 300;
}

.x{
    width: 40px;
    height: 20px;
    border: 0;
    border-radius: 5px;
    background-color:rgb(230,206,230);
    cursor: pointer;
}

.change{
    width: 80px;
    height: 50px; 
    border-radius: 10px;
    cursor: pointer;
    box-sizing: border-box;
    padding-left: 23px;
    padding-top: 12px;
    color: snow;
}

.junior{ 
    position: fixed;
    top: 420px;
    left: -480px;
    background-color: #de283b;
}
.senior{
    position: fixed;
    top: 420px;
    left: -370px;
    background-color: #ff6366;
}
.cet4{
    position: fixed;
    top: 420px;
    left: -260px;
    background-color: #FFD700;
}
.cet6{
    position: fixed;
    top: 420px;
    left: -150px;
    background-color: #00E5FF;
}
.postgraduate{
    position: fixed;
    top: 500px;
    left: -425px;
    background-color: #c69fff;
}
.toefl{
    position: fixed;
    top: 500px;
    left: -315px;
    background-color: #ff8e8c;
}
.sat {
    position: fixed;
    top: 500px;
    left: -205px;
    background-color: #86efac;

    padding-left: 25px;
}