/* 滑块验证码样式（卡片式设计） */
.slider-captcha-container {
    /* 内容宽度 = 300px（背景图宽度） + 左右 padding 各 10px = 320px */
    width: 320px;
    margin: 12px auto;
    padding: 14px 10px 12px 10px;
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.16);
    box-sizing: border-box;
}

.slider-captcha-background {
    position: relative;
    /* 固定为 300×150，与后端生成图片尺寸完全一致，避免缩放导致缺口位置偏移 */
    width: 300px;
    height: 150px;
    border-radius: 12px;
    overflow: hidden;
    background: linear-gradient(135deg, #f9fafb 0%, #e5f0ff 100%);
}

.slider-bg-img {
    width: 100%;
    height: 100%;
    display: block;
}

.slider-piece {
    position: absolute;
    top: 50%;
    left: 0;
    width: 60px;
    height: 60px;
    transform: translateY(-50%);
    border-radius: 12px;
    border: 2px solid rgba(255, 255, 255, 0.95);
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 0 8px rgba(15, 23, 42, 0.25);
    pointer-events: none;
}

.slider-gap {
    /* 仅用于与滑块同步位置，不再叠加第二层可见方框，避免与底图缺口产生视觉偏差 */
    position: absolute;
    top: 50%;
    left: 0;
    width: 60px;
    height: 60px;
    transform: translateY(-50%);
    pointer-events: none;
    opacity: 0;
    transition: left 0.1s ease;
}

.slider-captcha-slider {
    position: relative;
    margin-top: 14px;
    height: 46px;
}

.slider-track {
    position: relative;
    width: 300px;
    height: 40px;
    background: #f5f5f5;
    border: 1px solid #e4e7ed;
    border-radius: 20px;
    overflow: hidden;
}

.slider-track.success {
    background: #d4f2e5;
    border-color: #31c27c;
}

.slider-track.fail {
    background: #fdecec;
    border-color: #f56c6c;
}

.slider-text {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    text-align: center;
    font-size: 14px;
    color: #909399;
    z-index: 1;
    pointer-events: none;
    transition: color 0.3s;
}

.slider-track.success .slider-text {
    color: #31c27c;
    font-weight: bold;
}

.slider-track.fail .slider-text {
    color: #f56c6c;
}

.slider-button {
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 40px;
    background: #ffffff;
    border: 1px solid #dcdfe6;
    border-radius: 20px;
    cursor: move;
    cursor: grab;
    cursor: -webkit-grab;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.15);
    transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
}

.slider-button:active {
    cursor: grabbing;
    cursor: -webkit-grabbing;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
}

.slider-button img {
    display: none;
}

.slider-button i {
    position: static;
    color: #909399;
    font-size: 16px;
}

.slider-captcha-refresh {
    margin-top: 12px;
    text-align: right;
    cursor: pointer;
    color: #6b7280;
    font-size: 13px;
    transition: color 0.3s;
}

.slider-captcha-refresh:hover {
    color: #2563eb;
}

.slider-captcha-refresh i {
    margin-right: 5px;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .slider-captcha-container {
        width: 100%;
    }

    .slider-captcha-background {
        width: 100%;
    }
}

/* layer 弹层外观：居中白色卡片 */
.slider-captcha-layer {
    background: #ffffff !important;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.25) !important;
    border-radius: 16px !important;
    border: 1px solid #e5e7eb !important;
}

.slider-captcha-layer .layui-layer-content {
    padding: 12px 12px 14px 12px !important;
}