.at-cursor-bar {
    /* Defines the color of the bar background when a bar is played */
    background: rgba(255, 242, 0, 0.25);
}

.at-selection div {
    /* Defines the color of the selection background */
    background: rgba(64, 64, 255, 0.2);
}

.at-cursor-beat {
    /* Defines the beat cursor */
    background: rgba(64, 64, 255, 0.75);
    width: 3px;
}

.at-highlight * {
    /* Defines the color of the music symbols when they are being played (svg) */
    fill: #0078ff;
    stroke: #0078ff;
}

html,
body {
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
    width: 100%;
    height: 100%;
}

body {
    display: flex;
    align-content: stretch;
    flex-direction: column;
    background-color: transparent !important;
    width: 100%;
    height: 100%;
}

.at-wrap {
    position: relative;
    width: 100%;
    height: 100%;
    margin: 0 auto;
    /* border: 1px solid rgba(0, 0, 0, 0.12); */
    /*background: #fff;*/
    display: flex;
    flex-direction: column;
    overflow: hidden;

}
.at-wrap:after {
    opacity: 0.2;
    content: ' ';
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background-image: url(/image/watermark.png);
    background-size: 100%;
    z-index: -1;
    background-position-x: calc(50% - 20px);
    background-position-y: calc(50% - 50px);
}

.at-content {
    flex: 1 1 auto;
    overflow: hidden;
    position: relative;
}

.at-footer {
    flex: 0 0 auto;
    background: #436d9d;
    color: #fff;
}

.at-sidebar {
    max-width: 70px;
    width: auto;
    display: flex;
    align-content: stretch;
    z-index: 1001;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    overflow: hidden;
    border-right: 1px solid rgba(0, 0, 0, 0.12);
    background: #f7f7f7;
}

.at-sidebar:hover {
    max-width: 400px;
    transition: max-width 0.2s;
    overflow-y: auto;
}

.at-viewport {
    overflow-y: auto;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding-right: 20px;
}

.at-song-title {
    font-weight: 500;
}

.at-track {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    grid-template-areas: 'icon title' 'icon controls';
    padding: 5px;
    transition: background 0.2s;
    grid-gap: 5px;
    cursor: pointer;
}

.at-track:hover {
    background: rgba(0, 0, 0, 0.1);
}

.at-track > .at-track-icon {
    grid-area: icon;
    font-size: 32px;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0.5;
    transition: opacity 0.2s;
    width: 64px;
    height: 64px;
}

.at-track:hover > .at-track-icon {
    opacity: 0.8;
}

.at-track.active {
    background: rgba(0, 0, 0, 0.03);
}

.at-track.active > .at-track-icon {
    color: #4972a1;
    opacity: 1;
}

.at-track > .at-track-name {
    grid-area: title;
    font-weight: 500;
}

.at-track > .at-track-controls {
    grid-area: controls;
    display: flex;
    align-items: center;
}

.at-track > .at-track-controls > * {
    margin: 0 2px;
}

.at-track > .at-track-controls > button.active:hover {
    background: transparent;
}

input[type='range'] {
    -webkit-appearance: none;
    background: #d3d3d3;
    outline: none;
    opacity: 0.7;
    transition: opacity 0.2s;
    height: 5px;
}

input[type='range']::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #4972a1;
    cursor: pointer;
}

input[type='range']::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #4972a1;
    cursor: pointer;
}

.at-overlay {
    display: flex;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1002;
    backdrop-filter: blur(3px);
    background: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease-in-out;
    transition-delay: 0s;
}

.at-wrap.loading .at-overlay,
.at-wrap.dragging .at-overlay {
    visibility: visible;
    opacity: 1;
    transition-delay: 0.2s;
}

.at-overlay-content {
    margin-top: 20px;
    background: #fff;
    box-shadow: 0 5px 10px 0 rgba(0, 0, 0, 0.3);
    padding: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    min-width: 200px;
    min-height: 80px;
}

.at-overlay-message {
    margin-top: 10px;
}

.at-overlay-content > .spinner-border {
    color: #4972a1;
}

.at-player {
    display: flex;
    justify-content: space-between;
    padding: 7px 100px 7px 20px;
}
.at-player > div {
    padding: 3px;
    display: flex;
    justify-content: flex-start;
    align-content: center;
    align-items: center;
}
.at-player-left > *,
.at-player-right > * {
    margin-right: 4px;
}

.at-player-left > a.disabled,
.at-player-left > a.disabled:hover,
.at-player-left > a.disabled:active {
    color: rgba(0, 0, 0, 0.3);
}

.at-footer a {
    color: #fff;
    display: flex;
    width: 40px;
    height: 40px;
    text-align: center;
    box-sizing: content-box;
    align-items: center;
    justify-content: center;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out,
    box-shadow 0.15s ease-in-out;
    text-decoration: none;
}

.at-footer a > i {
    vertical-align: top;
    font-size: 16px;
}

.at-footer .btn {
    padding: 4px;
    color: #fff;
    border-radius: 0;
    height: 40px;
}

.at-footer .btn:hover {
    background: #5588c7;
}

.at-footer a.active{
    background: #5588c7;
    text-decoration: none;
}

.at-footer .force {
    background: #5588c7;
}

.at-footer .dropdown-menu {
    box-shadow: 0 2px 4px -1px rgba(0, 0, 0, 0.2), 0 4px 5px 0 rgba(0, 0, 0, 0.14), 0 1px 10px 0 rgba(0, 0, 0, 0.12);
    border: 0;
    border-radius: 4px;
    color: #fff;
    z-index: 1001;
}

.at-footer .dropdown-item {
    color: initial;
    width: auto;
    height: auto;
    text-align: left;
    justify-content: start;
}

.at-footer .dropdown-item > i {
    margin-right: 4px;
}

.at-footer .dropdown-item:hover {
    background: rgba(0, 0, 0, 0.04);
}

.at-time-position {
    font-weight: bold;
}

.at-time-trial {
    font-weight: bold;
    color: rgba(72, 231, 231, 1);

    animation: atTimeTrialFadeInOut 0.5s ease-in-out infinite alternate;

}

/* 定义动画关键帧 */
@keyframes atTimeTrialFadeInOut {
    /* 动画开始时的状态 */
    0% {
        opacity: 0.5; /* 透明度为0.5 */
    }
    /* 动画结束时的状态 */
    100% {
        opacity: 1; /* 透明度为1 */
    }
}

.at-time-slider {
    height: 4px;
    background: #d9d9d9;
}

.at-time-slider-value {
    height: 4px;
    background: #4972a1;
    width: 0;
}

.at-speed-value {
    font-size: 0.8rem;
    margin: 0 0.5em;
}

/** Circular Progress Bar https://jsfiddle.net/bootstrapious/3xnomecr  **/
.progress {
    width: 28px;
    height: 28px;
    background: none;
    position: relative;
}

.progress::after {
    content: '';
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 3px solid #eee;
    position: absolute;
    top: 0;
    left: 0;
}
.

.progress > span {
    width: 50%;
    height: 100%;
    overflow: hidden;
    position: absolute;
    top: 0;
    z-index: 1;
}

.progress .progress-left {
    left: 0;
}

.progress .progress-bar {
    width: 100%;
    height: 100%;
    background: none;
    position: absolute;
    top: 0;
    border: 3px solid #4972a1;
}

.progress .progress-left .progress-bar {
    left: 100%;
    border-top-right-radius: 16px;
    border-bottom-right-radius: 16px;
    border-left: 0;
    -webkit-transform-origin: center left;
    transform-origin: center left;
}

.progress .progress-right {
    right: 0;
}

.progress .progress-right .progress-bar {
    left: -100%;
    border-top-left-radius: 16px;
    border-bottom-left-radius: 16px;
    border-right: 0;
    -webkit-transform-origin: center right;
    transform-origin: center right;
}

.progress .progress-value {
    position: absolute;
    top: 0;
    left: 0;
    font-size: 8px;
}

.at-loop {
    width: 60px !important;
}

@media screen and (max-width: 920px) {
    .at-player-right > *:not(.at-logo) {
        display: none !important;
    }

    .at-wrap {
        /*height: 60%;*/
    }
}

@media screen and (max-width: 1100px) {
    .at-footer * {
        font-size: 12px !important;
    }
    .at-logo img {
        height: 18px;
    }

    .at-sidebar {
        display: none;
    }

    .at-viewport {
        left: 0 !important;
    }
}


/* 隐藏底部水印 */
.at > div:last-of-type {
    display: none !important;
}

.icon-stop{
    display: block;
    content: ' ';
    width: 14px;
    height: 14px;
    background-color: white;
    position: relative;
}
.at-player-left > .disabled > .icon-stop,.icon-back {
    background-color: rgba(0, 0, 0, 0.3);
}

.at-back {
    display: none !important;
}

.at-back,.icon-back {
    position: relative;
}

.icon-back::before {
    top: -5px;
    left: 0;
    content: '';
    position: absolute;
    width: 10.3px;
    height: 10.3px;
    border-left: 3px solid currentColor;
    border-top: 3px solid currentColor;
    transform: rotate(-45deg);
}

.message-content {
    font-family: Arial, sans-serif;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: 20px;
    display: flex;
}
.message-content-hide{
    display: none;

}
/* 背景遮罩层 */
.message-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

/* 弹窗容器 */
.message-modal {
    position: fixed;
    z-index: 1000;
    background-color: white;
    border-radius: 8px;
    padding: 40px 20px;
    max-width: 420px;
    width: 90%;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

/* 错误图标样式 */
.error-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background-color: #fde2e2;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #e63946;
    font-size: 28px;
}

/* 提示文字样式 */
.message {
    color: #333;
    font-size: 18px;
    line-height: 1.5;
}

.custom-modal-btn {
    padding: 8px 20px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-size: 14px;
}
/* 退出按钮 */
.custom-modal-btn.custom-modal-exit {
    background-color: #f44257;
    color: white;
}
/**加载超时的退出按钮*/
.custom-loading-exit {
    margin-top: 10px;
    background-color: #237add;
    padding: 3px 50px;
    color: white;
}

.message-modal-footer {
    display: none;
}
.message-modal-footer.message-modal-footer-show {
    display: block !important;
}
.custom-loading-exit {
    height: 0;
    /* 初始状态：隐藏 */
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px); /* 初始位置向下偏移 */
    /* 动画过渡属性 */
    transition:
            height 0.5s ease-in-out,
            opacity 0.5s ease-out,
            visibility 0.5s ease-out,
            transform 0.5s ease-out;
}
.at-wrap.loading .custom-loading-exit.btn-show {
    height: auto;
    display: block !important;
    opacity: 1;
    visibility: visible;
    transform: translateY(0); /* 回到正常位置 */
}