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.book-cover[data-category=年份]{background:#b6756a}.book-browser .shelf-book .book-cover[data-category=年份][data-color="1"]{background:#6c8ea5}.book-browser .shelf-book .book-cover[data-category=年份][data-color="2"]{background:#8b9a79}.book-browser .shelf-book .book-cover[data-category=年份][data-color="3"]{background:#9b86a1}.book-browser .shelf-book .book-cover[data-category=年份]>strong{font-family:inherit;font-size:19px;font-weight:700;letter-spacing:-.02em}.book-browser .shelf-book .book-cover[data-category=主题]{background:#758ea1}.book-browser .shelf-book:nth-child(4n+1) .book-cover[data-category=主题]{background:#b38173}.book-browser .shelf-book:nth-child(4n+2) .book-cover[data-category=主题]{background:#779486}.book-browser .shelf-book:nth-child(4n+3) .book-cover[data-category=主题]{background:#9b89a2}.book-browser .shelf-book-info{flex:1;gap:7px}.book-browser .shelf-book-info>strong{color:#263747;font-size:16px;line-height:1.45;font-weight:600}.book-browser .shelf-book-info>span{color:#6c7882;font-size:13px}.book-browser .shelf-book-info .book-current{color:#446b9a}.book-browser .shelf-book progress{margin-top:1px}@media(max-width:640px){.book-browser .book-shelf{grid-template-columns:minmax(0,1fr);margin-top:16px;padding:2px 16px}.book-browser .shelf-book{min-height:106px;gap:16px;padding:12px 0}.book-browser .shelf-book .book-cover{width:60px;height:82px;padding:9px 8px}.book-browser .shelf-book .book-cover>strong{font-size:16px}.book-browser .shelf-book .book-cover[data-category=年份]>strong{font-size:18px}}