/* 前台页面跳转和异步请求共用的轻量轨道呼吸动效。 */
.bc-route-loader {
    position: fixed;
    z-index: 10020;
    top: 92px;
    left: 50%;
    width: max-content;
    max-width: calc(100vw - 32px);
    transform: translate(-50%, -8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .22s ease, transform .22s ease;
}

.bc-route-loader[hidden] {
    display: none !important;
}

.bc-route-loader.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

.bc-route-loader-card {
    display: flex;
    align-items: center;
    gap: 13px;
    min-height: 66px;
    padding: 10px 22px 10px 13px;
    border: 1px solid rgba(113, 96, 174, .12);
    border-radius: 24px;
    background: rgba(255, 255, 255, .88);
    box-shadow: 0 16px 46px rgba(67, 52, 112, .12), inset 0 1px 0 rgba(255, 255, 255, .95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.bc-loader-orbit {
    position: relative;
    display: block;
    flex: 0 0 43px;
    width: 43px;
    height: 43px;
    border-radius: 15px;
    background: linear-gradient(145deg, #f7f4ff, #f0f5ff);
    box-shadow: inset 0 1px 3px rgba(87, 71, 152, .05);
}

.bc-loader-orbit::before {
    position: absolute;
    inset: 7px;
    border: 2px solid rgba(112, 88, 233, .16);
    border-top-color: #7058e9;
    border-right-color: #91a9f4;
    border-radius: 50%;
    content: "";
    animation: bc-loader-orbit 1.5s cubic-bezier(.58, .16, .42, .84) infinite;
}

.bc-loader-orbit::after {
    position: absolute;
    top: 17px;
    left: 17px;
    width: 9px;
    height: 9px;
    border-radius: 4px;
    background: linear-gradient(145deg, #7058e9, #8baff7);
    box-shadow: 0 2px 7px rgba(112, 88, 233, .24);
    content: "";
    animation: bc-loader-breathe 1.5s ease-in-out infinite;
}

.bc-route-loader-label {
    color: #414054;
    font-size: 13px;
    font-weight: 650;
    letter-spacing: .02em;
    white-space: nowrap;
}

/* FastAdmin 默认的 GIF 加载图只在站点前台换肤，后台仍保持原行为。 */
.bc-page .layui-layer-loading {
    width: 76px !important;
    height: 76px !important;
    border: 1px solid rgba(113, 96, 174, .12) !important;
    border-radius: 24px !important;
    background: rgba(255, 255, 255, .9) !important;
    box-shadow: 0 16px 46px rgba(67, 52, 112, .12) !important;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.bc-page .layui-layer-loading .layui-layer-content,
.bc-page .layui-layer-loading .layui-layer-loading1,
.bc-page .layui-layer-loading .layui-layer-loading2 {
    position: relative;
    width: 43px !important;
    height: 43px !important;
    margin: 16px auto !important;
    border-radius: 15px;
    background: linear-gradient(145deg, #f7f4ff, #f0f5ff) !important;
}

.bc-page .layui-layer-loading .layui-layer-content::before {
    position: absolute;
    inset: 7px;
    border: 2px solid rgba(112, 88, 233, .16);
    border-top-color: #7058e9;
    border-right-color: #91a9f4;
    border-radius: 50%;
    content: "";
    animation: bc-loader-orbit 1.5s cubic-bezier(.58, .16, .42, .84) infinite;
}

.bc-page .layui-layer-loading .layui-layer-content::after {
    position: absolute;
    top: 17px;
    left: 17px;
    width: 9px;
    height: 9px;
    border-radius: 4px;
    background: linear-gradient(145deg, #7058e9, #8baff7);
    content: "";
    animation: bc-loader-breathe 1.5s ease-in-out infinite;
}

@keyframes bc-loader-orbit {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes bc-loader-breathe {
    0%, 100% { opacity: .72; transform: scale(.8); }
    50% { opacity: 1; transform: scale(1.08); }
}

@media (max-width: 720px) {
    .bc-route-loader { top: 76px; }
    .bc-route-loader-card { min-height: 58px; padding: 8px 17px 8px 10px; border-radius: 20px; }
}

@media (prefers-reduced-motion: reduce) {
    .bc-route-loader { transition: none; }
    .bc-loader-orbit::before,
    .bc-loader-orbit::after,
    .bc-page .layui-layer-loading .layui-layer-content::before,
    .bc-page .layui-layer-loading .layui-layer-content::after { animation: none; }
}