body {
    background-color: white;
    font-family: Arial, sans-serif;
    text-align: center;
    padding: 50px;
}

.container {
    display: inline-block;
    text-align: center;
}

h1 {
    font-size: 24px;
    margin-bottom: 20px;
}

.sizes {
    margin-bottom: 20px;
}

.size-btn {
    background-color: lightblue;
    border: none;
    padding: 10px 20px;
    border-radius: 50%;
    margin: 5px;
    cursor: pointer;
    font-size: 16px;
}

.size-btn i {
    margin-right: 5px;
}

/* 选中状态样式 */
.size-btn.selected {
    background-color: blue;
    color: white;
}

.upload-section {
    margin: 20px 0;
}

#fileInput {
    display: none;
}

#uploadBtn {
    background-color: lightblue;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 16px;
    margin-bottom: 10px;
}

#progressContainer, #generateProgressContainer {
    margin-top: 10px;
    display: none;
}

progress {
    width: 100%;
    height: 20px;
}

#iconResult {
    margin-top: 20px;
    display: none;
}

#generatedIcon {
    width: 128px;
    height: 128px;
    margin: 0 auto 10px;
    display: block;

    border-radius: 50%;   /* ✅ 正圆 */
    overflow: hidden;     /* ✅ 裁剪边缘 */
    object-fit: cover;    /* ✅ 不变形填满 */
    background: #eee;     /* 没有src时更好看，可删 */
}

#downloadBtn {
    background-color: lightblue;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 16px;
    text-decoration: none;
    color: black;
}