html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
}

iframe {
    width: 100%;
    height: 100%;
    border: none;
    zoom: 1;
}

/* Loader样式 */
#res-loading {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    height: 100vh;
    width: 100vw;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.5);
}

.loader {
    touch-action: manipulation;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    perspective: 780px;
}

.load-inner {
    position: absolute;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    border-radius: 50%;
    will-change: transform;
}

.load-inner.load-one {
    left: 0%;
    top: 0%;
    border-bottom: 3px solid #5c5edc;
    animation: rotate1 1.15s linear infinite;
}

.load-inner.load-two {
    right: 0%;
    top: 0%;
    border-right: 3px solid #9147ff;
    animation: rotate2 1.15s 0.1s linear infinite;
}

.load-inner.load-three {
    right: 0%;
    bottom: 0%;
    border-top: 3px solid #3b82f6;
    animation: rotate3 1.15s 0.15s linear infinite;
}

.project-loading-text {
    font-size: 20px;
    font-weight: 700;
    color: #1c1c1c;
    z-index: 10;
}

@keyframes rotate1 {
    0% {
        transform: rotateX(45deg) rotateY(-45deg) rotateZ(0deg);
    }

    100% {
        transform: rotateX(45deg) rotateY(-45deg) rotateZ(360deg);
    }
}

@keyframes rotate2 {
    0% {
        transform: rotateX(45deg) rotateY(45deg) rotateZ(0deg);
    }

    100% {
        transform: rotateX(45deg) rotateY(45deg) rotateZ(360deg);
    }
}

@keyframes rotate3 {
    0% {
        transform: rotateX(-60deg) rotateY(0deg) rotateZ(0deg);
    }

    100% {
        transform: rotateX(-60deg) rotateY(0deg) rotateZ(360deg);
    }
}
/* ===== 修复：目标站已显示但 loading 动画不消失（2026-09-23）=====
   说明：本 CSS 被「双层 iframe 页」(随机子域返回的页面) 引用；
   该页 hideLoading() 挂在 iframe.onload 上，跨域目标站子资源慢时 onload 迟迟不触发，
   于是 loading 动画长时间停在页面中间（客户反馈「动画残留」）。
   兜底：目标 iframe 出现后 15 秒，自动淡出 loading（只改 opacity/visibility，绝不动 display，
   也不隐藏 iframe 本身，避免白屏）。 */
body:has(#target-iframe) #res-loading {
  animation: fh-hide-loader 0s 15s forwards;
}
@keyframes fh-hide-loader {
  to { opacity: 0; visibility: hidden; pointer-events: none; }
}