/**
 * 海报分享弹窗
 *
 * 结构由 poster.js 动态生成：
 * .knn-poster-modal > .knn-poster-mask + .knn-poster-dialog（imgbox / loading / 长按引导 / 下载钮）
 */

.knn-poster-modal {
    position: fixed;
    inset: 0;
    /* 高于商城弹窗遮罩（4000）与加购动画（5000），保证海报弹窗始终在最上层 */
    z-index: 5100;
    display: flex;
    align-items: center;
    justify-content: center;
}

body.knn-poster-lock {
    overflow: hidden;
}

.knn-poster-mask {
    position: absolute;
    inset: 0;
    background: rgba(15, 18, 25, 0.55);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    animation: knn-poster-mask-in 0.22s ease both;
}

.knn-poster-dialog {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 92vw;
    animation: knn-poster-pop 0.34s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.knn-poster-close {
    position: absolute;
    top: -14px;
    right: -14px;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    font-size: 16px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
    transition: 0.2s;
}

.knn-poster-close:hover {
    background: #fff;
    color: var(--focus-color, #007aff);
    transform: rotate(90deg);
}

.knn-poster-imgbox {
    display: flex;
    align-items: center;
    justify-content: center;
    width: min(400px, 88vw);
    min-height: 300px;
    max-height: 74vh;
    border-radius: 14px;
    background: #fff;
    overflow: hidden;
    box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.5);
}

.knn-poster-img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 74vh;
    object-fit: contain;
}

.knn-poster-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 30px;
    color: #999;
    font-size: 14px;
    text-align: center;
}

.knn-poster-loading i {
    font-size: 26px;
    color: var(--focus-color, #007aff);
}

.knn-poster-tip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    max-width: min(400px, 88vw);
    margin-top: 14px;
    padding: 7px 14px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.14);
    color: rgba(255, 255, 255, 0.92);
    font-size: 12px;
    line-height: 1.6;
    text-align: center;
}

.knn-poster-tip i {
    flex: none;
    font-size: 13px;
}

.knn-poster-download {
    margin-top: 16px;
    padding: 10px 38px;
    border-radius: 24px;
    background: var(--focus-color, #007aff);
    color: #fff;
    font-size: 15px;
    transition: 0.2s;
}

/* 引导条紧邻下载钮时收紧间距，避免弹窗在小屏溢出 */
.knn-poster-tip + .knn-poster-download {
    margin-top: 10px;
}

.knn-poster-download:hover {
    color: #fff;
    opacity: 0.85;
    transform: translateY(-1px);
}

/* 移动端：压缩图片区高度，给引导条与下载钮留出可视空间 */
@media (max-width: 768px) {
    .knn-poster-imgbox {
        width: min(340px, 86vw);
        max-height: 56vh;
    }

    .knn-poster-img {
        max-height: 56vh;
    }

    .knn-poster-tip {
        max-width: min(340px, 86vw);
        margin-top: 12px;
    }

    .knn-poster-download {
        margin-top: 12px;
        padding: 9px 34px;
    }

    .knn-poster-tip + .knn-poster-download {
        margin-top: 8px;
    }

    /* 触屏无 hover，关闭钮内收防止贴边被裁切 */
    .knn-poster-close {
        top: -8px;
        right: -8px;
    }
}

@keyframes knn-poster-mask-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes knn-poster-pop {
    from {
        opacity: 0;
        transform: scale(0.86) translateY(24px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}