/* 复用自定义样式弹窗的毛玻璃底座，只补充卷库连接内容布局。 */
.library-connect-dialog h2{font-size:23px;letter-spacing:-.04em;line-height:1.3;margin:5px 30px 0 0;font-weight:650}
.library-connect-dialog p{margin:0}.library-connect-dialog .library-connect-subtitle{margin:12px 0 25px;color:var(--cs-muted);font-size:13px}
.library-connect-dialog .library-connect-status{font-size:12px;line-height:1.7;padding:12px 14px;border:1px solid var(--cs-line);background:var(--cs-field);border-radius:10px;min-height:22px}
.library-connect-downloads{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:20px 0 0}
.library-connect-card{display:flex;flex-direction:column;align-items:center;gap:10px;padding:24px 14px;border:1px dashed rgba(127,127,127,.4);border-radius:14px;background:rgba(127,127,127,.035);color:var(--cs-ink);text-decoration:none;text-align:center;transition:background .15s,border-color .15s}
.library-connect-card:hover{background:rgba(127,127,127,.09);border-color:var(--cs-ink)}.library-connect-card strong{display:block;font-size:14px;font-weight:550}.library-connect-card small{display:block;margin-top:5px;font-size:11px;color:var(--cs-muted)}
.library-connect-icon{display:inline-flex;flex-shrink:0;width:25px;height:25px}.library-connect-icon svg{width:100%;height:100%}
.library-platform-icon{display:inline-flex;flex-shrink:0;width:32px;height:32px}.library-platform-icon svg{width:100%;height:100%}
.library-connect-footer button{display:flex;align-items:center;justify-content:center;gap:7px;margin:0}.library-connect-footer .library-connect-icon{width:16px;height:16px}
.library-connect-dialog .library-connect-hint{font-size:11px;line-height:1.7;color:var(--cs-muted);margin-top:14px}
.library-connect-dialog .library-connect-close{position:absolute;top:22px;right:22px;box-sizing:border-box;border:0;background:transparent;color:var(--cs-muted);display:flex;align-items:center;justify-content:center;width:32px;height:32px;margin:0;padding:0;line-height:1}
.library-connect-close>svg{display:block;flex-shrink:0;pointer-events:none}
.library-connect-dialog a:focus-visible{outline:2px solid var(--cs-ink);outline-offset:3px}.library-connect-choices:empty{display:none}
.custom-style-dialog.library-download-dialog{--library-dialog-surface:#f0f0f2;--glass-surface:var(--library-dialog-surface);background:var(--library-dialog-surface);width:min(400px,calc(100vw - 32px))}
.library-download-dialog .library-connect-downloads{grid-template-columns:1fr}
.library-download-dialog .library-connect-card{box-sizing:border-box;min-height:224px;justify-content:center}
.library-download-dialog .library-platform-icon{width:44px;height:44px}
@media(max-height:560px){.library-download-dialog .library-connect-card{min-height:160px}}
@media(max-width:480px){.library-connect-dialog h2{font-size:21px}.library-connect-downloads{grid-template-columns:1fr 1fr;gap:8px}.library-connect-card{padding:20px 8px}.library-connect-card small{font-size:10px}.library-connect-footer>div{gap:6px}.library-connect-footer button{font-size:12px;padding:9px 8px}}
@media(max-width:360px){.library-connect-downloads{grid-template-columns:1fr}.library-connect-footer{flex-wrap:wrap}.library-connect-footer>div{margin-left:auto}}

/* 卷库列表独立成行，文件路径区分同名试卷。 */
.library-browse-dialog .library-connect-status{overflow-wrap:anywhere}
.library-paper-list{display:flex;flex-direction:column;gap:8px;margin-top:18px;max-height:42vh;overflow:auto;padding:3px}
.library-browse-dialog .library-paper-row{display:flex;align-items:center;gap:14px;width:100%;margin:0;padding:15px;text-align:left;border-radius:12px;background:var(--cs-field)}
.library-paper-icon{display:grid;place-items:center;width:38px;height:44px;flex-shrink:0;border:1px solid var(--cs-line);border-radius:9px;background:rgba(127,127,127,.04)}
.library-paper-icon svg{width:22px;height:22px}.library-paper-text{display:flex;flex-direction:column;gap:5px;min-width:0;flex:1}
.library-paper-text strong{font-size:14px;font-weight:600;overflow-wrap:anywhere}.library-paper-text small{font-size:11px;color:var(--cs-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.5}
.library-paper-edit{display:inline-flex;width:20px;height:20px;flex-shrink:0;color:var(--cs-muted)}.library-paper-edit svg{width:100%;height:100%}.library-browse-footer{font-size:11px;color:var(--cs-muted);flex-wrap:wrap;margin-top:20px;padding-top:16px}
.library-paper-open{color:var(--cs-ink);font-size:13px;text-underline-offset:4px}.library-browse-dialog .library-paper-empty{padding:22px 12px;color:var(--cs-muted);font-size:13px;line-height:1.8;text-align:center}

.library-desktop-launch{display:block;text-align:center;background:var(--cs-ink);color:var(--cs-field);border-radius:10px;padding:12px;margin:20px 0;text-decoration:none;font-weight:550}

/* 未连接只提供连接操作，下载保留为次要文字入口。 */
.library-browse-connection[hidden]{display:none}
.library-browse-connection-actions{display:flex;align-items:center;gap:12px;margin:18px 0}
.library-browse-connection-actions .library-desktop-launch{margin:0;padding:10px 22px;border-radius:24px}
.library-browse-connection-actions button{padding:10px 22px;border-radius:24px}
.library-browse-download{display:inline-block;color:var(--cs-muted);font-size:12px;text-underline-offset:4px}


.library-connection-retry{position:relative;margin-top:0;padding-top:24px;text-align:center}
.library-connection-retry .library-connect-status{padding-top:23px;border-style:dashed}
.library-download-dialog .library-connection-retry .library-refresh-connection{position:absolute;top:-24px;left:50%;transform:translateX(-50%);display:flex;align-items:center;justify-content:center;width:48px;height:48px;padding:5px;margin:0;border:0;border-radius:50%;background:var(--library-dialog-surface);box-shadow:none;color:var(--cs-ink);cursor:pointer}
.library-download-dialog .library-connection-retry .library-refresh-connection:hover{background:var(--library-dialog-surface)}.library-refresh-connection:focus-visible{outline:2px solid currentColor;outline-offset:3px}.library-refresh-connection:disabled{opacity:.45;cursor:wait}
.library-refresh-connection svg{display:block;flex-shrink:0}

.library-refresh-connection[aria-busy="true"] .library-refresh-arrows{transform-origin:16px 16px;animation:library-refresh-spin 1s linear infinite}
@keyframes library-refresh-spin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.library-refresh-connection[aria-busy="true"] .library-refresh-arrows{animation:none}}

:root[data-theme="dark"] .library-download-dialog{--library-dialog-surface:#202126}