/* Adapted from LATIAN /free-ebook: refinement.css .lx-book-cover.
   Live URL returned NinjaFirewall 403; local source/render is recorded in reference/.
   Titles remain live HTML text. No cover illustration, raster title, or 3D rotation. */
.ref-cover{position:relative;container-type:inline-size;width:100%;aspect-ratio:210/297;color:#102a4a;background:linear-gradient(115deg,#fafcfe,#e1ebf5);border-left:3px solid #366399;box-shadow:0 18px 34px #102a4a22;isolation:isolate;box-sizing:border-box}
.ref-cover .ref-cover-inner{position:absolute;inset:9.5% 9%;display:flex;flex-direction:column;justify-content:space-between;min-width:0}
.ref-cover .ref-cover-inner>p{margin:0;padding:0;max-width:none;flex-shrink:0}
.ref-cover .ref-brand{font-size:max(7px,3.25cqw);font-weight:650;letter-spacing:.08em;line-height:1.5;color:#366399}
.ref-cover .ref-title{font-size:max(21px,13cqw);font-weight:750;letter-spacing:-.05em;line-height:1.3;color:#102a4a;word-break:keep-all}
.ref-cover .ref-note{font-size:max(9px,3.9cqw);font-weight:450;letter-spacing:-.02em;line-height:1.8;color:#366399;word-break:keep-all}
.ref-cover .ref-cover-inner>.ref-footer{padding-top:5.4cqw;border-top:1px solid #c8d7e7;font-size:max(8px,3.6cqw);font-weight:650;letter-spacing:-.025em;line-height:1.5;color:#102a4a}