body {
    background: #f5f7fb;
}

.kuso-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(245, 247, 251, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid #d9e2ef;
}

.kuso-stage-body {
    min-height: 500px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #fbfcff 0%, #f1f5fb 100%);
    border: 1px solid #d9e2ef;
}

.kuso-runaway-area {
    position: relative;
    height: 320px;
    overflow: hidden;
    background: #fff;
    border: 1px dashed #b8c8e1;
}

.kuso-runaway-button {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    min-width: 160px;
    transition:
        left 0.17s cubic-bezier(0.22, 1, 0.36, 1),
        top 0.17s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.17s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: left, top, transform;
    z-index: 2;
}

.kuso-popup-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    background: rgba(15, 23, 42, 0.45);
}

.kuso-popup-overlay.is-show {
    display: block;
}

.kuso-popup-layer {
    position: absolute;
    inset: 0;
}

.kuso-popup {
    position: absolute;
    background: #fff;
    border: 1px solid #d9e2ef;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);
    animation: popup-bounce-in 0.24s ease-out both;
}

@keyframes popup-bounce-in {
    0% {
        opacity: 0;
        transform: translateY(16px) scale(0.92);
    }

    70% {
        opacity: 1;
        transform: translateY(-4px) scale(1.02);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.kuso-scroll-box {
    height: 320px;
    overflow: auto;
    background: #fff;
    border: 1px solid #d9e2ef;
}

.kuso-terms-inner {
    min-height: 7200px;
    line-height: 1.9;
    background: linear-gradient(180deg, #ffffff 0%, #eef4ff 100%);
}