.story-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: var(--story-header-height);
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1;

    transition: background 0.3s ease;
}


.story-header-gradient {
    /* 只有在沉浸模式才有背景颜色*/
    background: linear-gradient(to bottom, #000, transparent);
}


.story-header-btn {
    height: 30px;
    width: 30px;

     background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255 ,255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50%;

    display: flex;
    align-items: center;
    justify-content: center;
}

.story-header-btn i {
    font-size: 10px;
}

.story-header .close-btn  {
    /*height: var(--story-header-height);*/
    /*line-height: var(--story-header-height);*/


}


.story-header .close-btn i {
font-size: 10px;
}

.story-header .story-title  {
    height: var(--story-header-height);
    line-height: var(--story-header-height);
    opacity: 0;
}



.story-header .story-title {
    padding: 0 10px;
    flex: 1;
    text-align: center;
    font-size: 14px;
    font-weight: bold;
}