/* 拼图滑块验证码样式（登录页触发验证码时显示） */
.slide-captcha {
    width: 280px;
    margin: 0 auto;
    user-select: none;
    -webkit-user-select: none;
}

.slide-bg-wrap {
    position: relative;
    width: 280px;
    height: 155px;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
}

.slide-bg {
    display: block;
    width: 280px;
    height: 155px;
    pointer-events: none;
}

/* 拼图块：drop-shadow 贴合 alpha 形状（含凸起），产生悬浮立体感 */
.slide-piece {
    position: absolute;
    top: 0;
    left: 0;
    width: 52px;
    height: 42px;
    z-index: 2;
    pointer-events: none;
    filter: drop-shadow(0 3px 5px rgba(0, 0, 0, 0.35));
}

.slide-track {
    position: relative;
    width: 280px;
    height: 40px;
    background: #eef1f6;
    border: 1px solid #d5dae3;
    border-radius: 20px;
    margin-top: 12px;
    overflow: hidden;
}

.slide-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #67c23a, #85ce61);
    border-radius: 20px 0 0 20px;
}

.slide-handle {
    position: absolute;
    top: -1px;
    left: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #ffffff, #f5f7fa);
    border: 1px solid #d5dae3;
    border-radius: 50%;
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    color: #409eff;
    z-index: 3;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.slide-handle:active {
    cursor: grabbing;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
}

.slide-tip {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    line-height: 40px;
    text-align: center;
    color: #8a93a3;
    font-size: 13px;
    letter-spacing: 1px;
    pointer-events: none;
    z-index: 1;
}

/* 成功态：滑块变绿、提示变白 */
.slide-captcha.success .slide-handle {
    background: #67c23a;
    border-color: #67c23a;
    color: #fff;
}

.slide-captcha.success .slide-tip {
    color: #fff;
}

/* 失败态：滑块变红并抖动 */
.slide-captcha.fail .slide-handle {
    background: #f56c6c;
    border-color: #f56c6c;
    color: #fff;
    animation: slide-shake 0.4s;
}

.slide-captcha.fail .slide-tip {
    color: #f56c6c;
}

@keyframes slide-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    50% { transform: translateX(4px); }
    75% { transform: translateX(-3px); }
}