/* 动图页"文库相关资料"共用样式（所有动图页引用本文件） */
.lib-refs{margin-top:16px;border:1px solid var(--stroke,#dadce0);border-radius:12px;background:#fff;overflow:hidden}
.lib-refs .lr-head{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#f8fafc;border-bottom:1px solid var(--stroke,#dadce0);font-size:14px;font-weight:600;color:#1f1f1f}
.lib-refs .lr-head .lr-ico{font-size:15px}
.lib-refs .lr-head a{margin-left:auto;font-size:12px;font-weight:500;color:#0b57d0;text-decoration:none}
.lib-refs .lr-head a:hover{text-decoration:underline}
.lr-list{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:12px 16px}
.lr-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border:1px solid #eef0f5;border-radius:10px;text-decoration:none;color:inherit;transition:all .15s;background:#fff;min-width:0}
.lr-item:hover{border-color:#c7d2fe;background:#f5f7ff;transform:translateY(-1px)}
.lr-type{flex-shrink:0;font-size:10px;font-weight:800;color:#fff;border-radius:5px;padding:2px 6px;letter-spacing:.5px}
.lr-type.t-doc{background:#4a90d9}.lr-type.t-ppt{background:#f0803c}.lr-type.t-pdf{background:#e05252}
.lr-type.t-xls{background:#3aa876}.lr-type.t-img{background:#9b6ddb}.lr-type.t-file{background:#8a94a6}
.lr-body{flex:1;min-width:0}
.lr-name{font-size:13px;color:#1f1f1f;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lr-meta{font-size:11px;color:#5f6368;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
/* 下载区：积分角标 + 下载按钮 */
.lr-dl{flex-shrink:0;display:flex;flex-direction:column;align-items:flex-end;gap:4px}
.lr-pts{font-size:10.5px;font-weight:700;color:#667eea;background:#eef2ff;border-radius:6px;padding:1px 7px;white-space:nowrap}
.lr-pts.free{color:#0a7d43;background:#e7f7ee}
.lr-btn{display:inline-flex;align-items:center;gap:3px;font-size:12px;font-weight:600;color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:8px;padding:4px 11px;white-space:nowrap;transition:filter .15s}
.lr-item:hover .lr-btn{filter:brightness(1.08)}
.lr-btn i{font-style:normal;font-size:11px}
/* 积分获取引导 */
.lr-foot{padding:10px 16px;background:#fffdf5;border-top:1px solid #f2ead0;font-size:12px;color:#8a6d1f;line-height:1.7}
.lr-foot b{color:#6b5310}
.lr-foot a{color:#0b57d0;text-decoration:none;font-weight:600}
.lr-foot a:hover{text-decoration:underline}
.lr-empty{padding:18px 16px;font-size:13px;color:#9aa0a6;text-align:center}
.lr-loading{padding:18px 16px;font-size:13px;color:#9aa0a6;text-align:center}
@media(max-width:640px){.lr-list{grid-template-columns:1fr}}
/* 全屏模式下隐藏（资料区属于课后延伸） */
.widget.fs .lib-refs{display:none}