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h2{margin:0;color:#f4f7fb;font-size:18px}.history-record-grid{display:flex;flex-wrap:wrap;gap:66px;align-items:flex-start}.history-record-tile{width:300px;padding:0;overflow:hidden;background:#0d1117;border:0}.history-record-tile:hover{outline:2px solid #16d8ff;outline-offset:3px}.history-thumb-grid{width:100%;aspect-ratio:1.48;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px;overflow:hidden;background:#111720}.history-thumb-grid.single{display:block}.history-thumb-grid img{width:100%;height:100%;display:block;object-fit:cover}.history-thumb-empty,.history-empty-state{min-height:180px;display:grid;place-items:center;color:#8793a4;background:#0d1117}.history-empty-state{min-height:calc(100vh - 220px);align-content:center;gap:12px;background:transparent}.history-empty-state p{margin:0}.toast{position:fixed;top:24px;left:50%;transform:translate(-50%);padding:10px 16px;color:#fff;background:#20242a;border:1px solid #323944;border-radius:8px;z-index:30}@media(max-width:980px){.generator-shell{grid-template-columns:72px minmax(0,1fr)}.control-panel{min-height:100vh}.result-panel{grid-column:1 / -1;min-height:560px}.history-workspace-header{align-items:flex-start;flex-direction:column;padding:12px 18px}.history-tools,.history-search{width:100%}.history-record-grid{gap:22px}}@media(max-width:640px){.generator-shell{display:block}.side-rail{display:none}.control-panel,.result-panel{border-right:0}.upload-grid{grid-template-columns:1fr 1fr}.field-row{grid-template-columns:1fr}.history-workspace{left:0}.history-top-tabs{gap:14px}.history-top-tabs button{font-size:15px}.history-record-tile{width:min(300px,100%)}}