.study-history-tools{display:flex;justify-content:flex-start;margin:0 0 12px}
.study-history-tools .study-previous{padding:8px 13px;border:1px solid var(--line,#e5d6c8);border-radius:11px;background:var(--wk-paper,#fff8f0);color:var(--muted,#806c59);font:inherit;font-size:12px;cursor:pointer}
.study-history-dialog,.history-limit-dialog{box-sizing:border-box;width:min(580px,calc(100% - 28px));max-height:calc(100dvh - 32px);overflow:auto;padding:28px;border:1px solid #fff9;border-radius:25px;background:#fffaf5f7;color:#332d29;box-shadow:0 28px 100px #49332630;backdrop-filter:blur(22px);font:14px/1.7 "Microsoft YaHei","PingFang SC",sans-serif;scrollbar-gutter:stable}
.study-history-dialog::backdrop,.history-limit-dialog::backdrop{background:#332d3545;backdrop-filter:blur(6px)}
.study-history-header{display:flex;align-items:center;justify-content:space-between;color:#8b7b6c;font-size:12px}
.study-history-header button{width:36px;height:36px;border:0;background:none;color:inherit;font:inherit;font-size:25px;cursor:pointer}
.study-history-dialog h2{margin:17px 0 14px;font:600 clamp(32px,6vw,48px)/1.15 Georgia,serif;overflow-wrap:anywhere;color:inherit}
.study-history-status{margin:18px 0;color:#8b7b6c;font-size:12px}
.study-history-definitions{border-top:1px solid #e7dbcf;border-bottom:1px solid #e7dbcf;padding:6px 0}
.study-history-definitions p{display:flex;gap:14px;align-items:baseline;margin:12px 0;font-size:16px;line-height:1.8}
.study-history-definitions b{min-width:42px;font-family:Georgia,serif;color:#b77943}
.study-history-dialog footer{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:26px}
.study-history-dialog footer button,.history-limit-dialog>button{padding:11px 16px;border:1px solid #e0c3aa;border-radius:12px;background:#fff1e3;color:#6b4728;font:inherit;font-size:13px;cursor:pointer}
.study-history-dialog footer [data-history-forward],.history-limit-dialog>button{background:#ed9956;border-color:#ed9956;color:#382312}
.history-limit-dialog{width:min(400px,calc(100% - 28px));padding:24px;text-align:center}
.history-limit-dialog img{display:block;width:200px;height:200px;object-fit:contain;margin:0 auto 14px}
.history-limit-dialog h2{margin:0;font-size:18px;line-height:1.6;font-weight:600}
.history-limit-dialog p{margin:10px 0 22px;font-size:12px;color:#8b7b6c}
.history-limit-dialog>button{min-width:130px}
.study-history-dialog button:focus-visible,.history-limit-dialog button:focus-visible,.study-previous:focus-visible{outline:3px solid #ce874c;outline-offset:3px}
.dark .study-history-dialog,.dark .history-limit-dialog{background:#302b28f7;color:#f5ebe2;border-color:#67574b}
.dark .study-history-header,.dark .study-history-status,.dark .history-limit-dialog p{color:#c2b3a5}
.dark .study-history-definitions{border-color:#665346}.dark .study-history-definitions b{color:#f0bb89}
.dark .study-history-dialog footer [data-history-back]{background:#49392c;border-color:#8d6548;color:#efc8a5}
@media(max-width:480px){.study-history-dialog{padding:20px}.study-history-dialog h2{font-size:36px}.study-history-definitions p{font-size:15px}.history-limit-dialog{padding:22px 18px}.history-limit-dialog img{width:180px;height:180px}}