.rcs-lb-open{ overflow:hidden; }
.rcs-lb{ position:fixed; inset:0; background:rgba(0,0,0,.75); display:flex; align-items:center; justify-content:center; z-index:99999; }
.rcs-lb-content{ position:relative; max-width:90vw; max-height:90vh; }
.rcs-lb-content img{ max-width:90vw; max-height:90vh; display:block; border-radius:12px; box-shadow:0 10px 30px rgba(0,0,0,.4); }
.rcs-lb-x{ position:absolute; top:-12px; right:-12px; width:38px; height:38px; border-radius:50%; background:#fff; border:1px solid #ddd; font-size:22px; line-height:34px; text-align:center; cursor:pointer; }
.rcs-lb-back{ position:fixed; inset:0; }