/* ========== 页面初始化加载层 ========== */
html.is-loading {
    /* 加载期间禁止滚动 */
    overflow: hidden;
}

.page-loader {
    /* 定位 */
    top: 0;
    left: 0;
    position: fixed;

    /* 大小 */
    width: 100%;
    height: 100%;

    /* 层级 */
    z-index: 9999;

    /* 布局 */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;

    /* 装饰 */
    background-color: #0c0e14;

    /* 动画 */
    opacity: 1;
    visibility: visible;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hide {
    /* 装饰 */
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.page-loader-ring {
    /* 大小 */
    width: 46px;
    height: 46px;

    /* 装饰 */
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-top-color: rgba(255, 255, 255, 0.9);

    /* 动画 */
    animation: pageLoaderSpin 0.9s linear infinite;
}

.page-loader-title {
    /* 装饰 */
    color: #f9fafa;
    font-size: 18px;
    font-weight: 545;
    letter-spacing: 2px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
}

.page-loader-tip {
    /* 装饰 */
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
    letter-spacing: 1px;

    /* 动画 */
    animation: pageLoaderPulse 1.6s ease-in-out infinite;
}

@keyframes pageLoaderSpin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes pageLoaderPulse {
    0%, 100% {
        opacity: 0.35;
    }
    50% {
        opacity: 0.9;
    }
}