.slider-captcha {
    position: relative;
    overflow: hidden;
    margin: 6px 0;
    user-select: none;
    -webkit-user-select: none;
}
.sc-bg {
    display: block;
    border-radius: 3px;
}
.sc-piece {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
}
.sc-track {
    position: relative;
    height: 32px;
    margin-top: 6px;
    background: #e8e8e8;
    border-radius: 16px;
    line-height: 32px;
    text-align: center;
    box-sizing: border-box;
}
.sc-track-text {
    font-size: 12px;
    color: #999;
    pointer-events: none;
}
.sc-slider {
    position: absolute;
    left: 0;
    top: 0;
    width: 36px;
    height: 32px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
    text-align: center;
    line-height: 32px;
    font-size: 16px;
    color: #666;
    cursor: pointer;
    z-index: 1;
    transition: background 0.2s;
}
.sc-slider:hover, .sc-slider-active {
    background: #4db2ee;
    color: #fff;
}
.sc-slider-success {
    background: #52c41a !important;
    color: #fff !important;
}
.sc-slider-fail {
    background: #f5222d !important;
    color: #fff !important;
}

/* 弹框模式 */
.sc-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.45);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.sc-modal {
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
    overflow: hidden;
}
.sc-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    font-size: 14px;
    color: #333;
    border-bottom: 1px solid #eee;
}
.sc-modal-close {
    font-size: 20px;
    color: #999;
    text-decoration: none;
    line-height: 1;
}
.sc-modal-close:hover {
    color: #333;
}
.sc-modal-body {
    padding: 16px;
}