/* Original project interaction patterns, contained inside Firefly project pages. */
.xp-memory-add{display:flex;gap:9px;margin:16px 0}.xp-memory-add input{flex:1;min-width:0;padding:10px;border:1px solid #5b9b95;border-radius:9px;background:#061e29;color:#f4fffb}.xp-memory-add button{padding:9px 14px;border:1px solid #74d6bc;border-radius:9px;background:#174b49;color:#fff}
.xp-memory-add[hidden],.ai-memory-toolbar[hidden]{display:none}
.ai-mobile-actions{display:none;gap:6px;margin-left:auto}.ai-mobile-actions button{padding:6px 9px;border:1px solid #6aaea1;border-radius:8px;background:#10333e;color:#d5fff3;font-size:12px}
@media(max-width:880px){.ai-mobile-actions{display:flex}.ai-room-head .ai-quota{display:none}}
.xp-homework-original,.xp-xiaoniuke-original{padding:12px;background:rgba(7,23,32,.7)}
.hg-shell,.xn-shell{max-width:1100px;margin:auto;padding:clamp(18px,3vw,28px);border-radius:15px;background:#f8fafc;color:#1e293b;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;box-shadow:0 12px 35px #0002}
.hg-shell h2,.xn-shell h2{font-family:inherit;font-size:25px;color:#1e293b}.hg-shell h2 span{color:#2563eb}.hg-shell .hg-intro{color:#64748b;font-size:13px;margin-bottom:15px}
.hg-tabs{display:flex;gap:3px;padding:3px;margin:14px 0;background:#f1f5f9;border-radius:24px}.hg-tabs button,.hg-shell .hg-tabs button{flex:1;min-height:38px;border:0;border-radius:22px;background:transparent;color:#64748b;box-shadow:none}.hg-tabs button.active,.hg-shell .hg-tabs button.active{background:#fff;color:#1e293b;box-shadow:0 1px 4px #0002}
.hg-mode{padding:9px 0;color:#64748b;font-size:13px}.hg-drop{display:grid;justify-items:center;gap:5px;padding:28px 20px;border:2px dashed #cbd5e1;border-radius:12px;background:#fff;text-align:center;cursor:pointer}.hg-drop:hover,.hg-drop.dragging{background:#dbeafe;border-color:#2563eb}.hg-drop.has-file{border-style:solid;border-color:#16a34a;background:#f0fdf4}.hg-drop span{font-size:31px}.hg-drop strong{font-size:16px}.hg-drop small{color:#94a3b8}.hg-drop input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.hg-drop:focus-within{outline:3px solid #2563eb}
.hg-file{margin:9px 0;color:#1d4ed8;font-size:13px;overflow-wrap:anywhere}.hg-options{display:flex;align-items:center;gap:14px;margin:15px 0}.hg-options label{display:flex;align-items:center;gap:6px;color:#475569;font-size:14px}.hg-options input{accent-color:#2563eb}.hg-shell .hg-go{margin-left:auto;border:0;background:#2563eb;color:#fff;font-weight:700}.hg-shell .hg-go:disabled{background:#94a3b8}.hg-progress{min-height:28px;color:#2563eb;font-size:14px}.hg-score{padding:16px;margin:15px 0;border:1px solid #86efac;border-radius:10px;background:#f0fdf4;color:#166534;font-size:18px;font-weight:700}.hg-score[hidden],.hg-history[hidden],.hg-grade[hidden]{display:none}.hg-question{padding:16px;margin:12px 0;border:1px solid #e2e8f0;border-radius:10px;background:#fff}.hg-question h3{margin:0 0 7px;font-size:16px;color:#334155}.hg-question p{max-width:none;white-space:pre-wrap;color:#334155;line-height:1.7}.hg-tutor{margin-top:18px;border:1px solid #e2e8f0;border-radius:11px;background:#fff;overflow:hidden}.hg-tutor h3{margin:0;padding:11px 15px;background:#eff6ff;color:#1e3a8a;font-size:15px}.hg-tutor-log{min-height:95px;max-height:210px;overflow:auto;padding:14px;color:#475569;font-size:14px}.hg-tutor-log p{margin:5px 0;white-space:pre-wrap;color:#334155}.hg-tutor form{display:flex;gap:8px;padding:11px;border-top:1px solid #e2e8f0}.hg-tutor input{flex:1;min-width:0;border:1px solid #cbd5e1;border-radius:8px;padding:9px;background:#fff!important;color:#1e293b!important}.hg-shell .hg-tutor button{border:0;background:#2563eb;color:#fff}.hg-history-list{display:grid;gap:9px}.hg-shell .hg-history-row{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;border:1px solid #e2e8f0;border-radius:9px;background:#fff;color:#1e293b;text-align:left}.hg-history-detail{white-space:pre-wrap;overflow-wrap:anywhere;color:#334155;background:#fff;padding:15px;border-radius:9px}
.hg-preview{display:block;max-width:min(100%,520px);max-height:440px;margin:12px auto;object-fit:contain;border:1px solid #dce6f2;border-radius:10px;box-shadow:0 4px 20px #0001}.hg-preview[hidden]{display:none}
.xn-shell{max-width:1400px;background:#f7fafc;color:#2c3e50}.xn-shell>header{display:flex;justify-content:space-between;align-items:center;gap:12px}.xn-count{font-size:13px;color:#7f8c9b}.xn-search{display:flex;gap:8px;margin:14px 0}.xn-search input{width:min(400px,100%);border:1px solid #e2e8f0;border-radius:7px;padding:9px 12px;background:#fff!important;color:#2c3e50!important}.xn-shell button{cursor:pointer}.xn-shell .xn-search button,.xn-shell .xn-filter button,.xn-shell .xn-problem nav button,.xn-shell .xn-actions button{min-height:35px;border:1px solid #4a90d9;border-radius:7px;background:#fff;color:#357abd;font-size:13px}.xn-shell .xn-search button,.xn-shell .xn-filter button.active,.xn-shell .xn-submit{background:#4a90d9!important;color:#fff!important}.xn-filter{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin:12px 0;color:#7f8c9b;font-size:13px}.xn-list{display:grid;gap:11px}.xn-shell .xn-card{display:flex;align-items:center;gap:10px;min-height:72px;width:100%;border:1px solid #e2e8f0;border-radius:10px;padding:18px 20px;background:#fff;color:#2c3e50;text-align:left;box-shadow:0 2px 10px #0001}.xn-card strong{margin-right:auto;font-size:16px}.xn-card span,.xn-card small{padding:3px 8px;border-radius:6px;background:#ebf3fc;color:#357abd;font-size:12px}.xn-problem[hidden],.xn-history[hidden],.xn-score[hidden]{display:none}.xn-problem nav{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:12px}.xn-problem nav strong{margin-left:auto}.xn-answer-layout{display:grid;grid-template-columns:1fr 1fr;gap:13px}.xn-answer-layout section{min-width:0;min-height:420px;border:1px solid #e2e8f0;border-radius:9px;background:#fff;overflow:hidden}.xn-answer-layout h3{margin:0;padding:11px 14px;background:#ebf3fc;color:#2c3e50;font-size:15px}.xn-answer-layout h3 small{float:right;color:#4a90d9}.xn-statement{padding:18px;line-height:1.7}.xn-cases{margin:0 15px 15px;padding:11px;border:1px solid #e2e8f0;border-radius:8px;background:#f7fafc;font-size:12px;color:#6b7b89}.xn-cases p{margin:5px 0;color:#6b7b89;overflow-wrap:anywhere}.xn-code{width:calc(100% - 28px)!important;min-height:300px!important;margin:14px;background:#fff!important;color:#1e293b!important;border:1px solid #cad8e4!important;font-family:Consolas,monospace!important;font-size:14px!important}.xn-actions{display:flex;flex-wrap:wrap;gap:8px;padding:0 14px 14px}.xn-actions .xn-submit{margin-left:auto}.xn-score{padding:13px 16px;margin:11px 0;border-radius:9px;font-weight:700}.xn-score.success{border:1px solid #b7eb8f;background:#f6ffed;color:#389e0d}.xn-score.error{border:1px solid #ffa39e;background:#fff1f0;color:#cf1322}.xn-status{min-height:26px;padding:8px 0;color:#4a90d9}.xn-results{border-radius:8px;overflow:hidden}.xn-test{padding:9px 13px;border-bottom:1px solid #e2e8f0;font:13px Consolas,monospace;overflow-wrap:anywhere}.xn-test.pass{background:#f6ffed}.xn-test.fail{background:#fff1f0}.xn-history{margin-top:13px;padding:14px;border:1px solid #e2e8f0;border-radius:9px;background:#fff}.xn-history-row{display:block;width:100%;padding:10px;border:0;border-bottom:1px solid #e2e8f0;background:#fff;text-align:left;color:#2c3e50}.xn-history pre{white-space:pre-wrap;overflow-wrap:anywhere;padding:12px;background:#f7fafc}
@media(max-width:760px){.xn-answer-layout{grid-template-columns:1fr}.xn-answer-layout section{min-height:0}.xn-code{min-height:230px!important}.xn-card{flex-wrap:wrap}.hg-options{flex-wrap:wrap}.hg-shell .hg-go{margin-left:0}.xn-problem nav strong{width:100%;margin-left:0}}
.hg-file:not([hidden]){display:flex;align-items:center;gap:10px;width:fit-content;max-width:100%;margin:14px 0;padding:10px 14px;border:1px solid #bfdbfe;border-radius:12px;background:#eff6ff;color:#1e40af;box-shadow:0 3px 12px #2563eb12}.hg-file[hidden]{display:none}.hg-file strong{font-size:14px;font-weight:650;overflow-wrap:anywhere}.hg-file small{padding-left:10px;border-left:1px solid #bfdbfe;color:#64748b;white-space:nowrap}.hg-progress:empty{min-height:0}.hg-save-note{display:flex;align-items:center;gap:10px;width:fit-content;max-width:100%;margin:8px 0 14px;padding:10px 14px;border:1px solid #a7f3d0;border-radius:11px;background:#ecfdf5;color:#166534;font-size:13px;line-height:1.5}.hg-tutor-log{display:flex;flex-direction:column;gap:12px;min-height:120px;max-height:360px;background:#fbfdff}.hg-tutor-log .hg-tutor-empty{margin:auto 0;color:#64748b}.hg-message{display:flex;flex-direction:column;gap:4px;max-width:min(82%,650px);align-self:flex-start}.hg-message.mine{align-self:flex-end;align-items:flex-end}.hg-message-name{font-size:11px;font-weight:700;color:#64748b}.hg-message-body,.hg-tutor-log .hg-message-body{margin:0;padding:10px 13px;border:1px solid #dbeafe;border-radius:13px 13px 13px 4px;background:#fff;color:#26394f;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere;box-shadow:0 2px 8px #1e3a8a0c}.hg-message.mine .hg-message-body{border-color:#93c5fd;border-radius:13px 13px 4px 13px;background:#dbeafe;color:#173b74}
.xn-header-actions{display:flex;align-items:center;gap:14px}.xn-shell .xn-create-open,.xn-shell .xn-generate,.xn-shell .xn-save-task{border:1px solid #3183d9;border-radius:8px;background:#3183d9;color:#fff;font-size:14px;font-weight:650;padding:10px 15px}.xn-shell .xn-create-open:hover,.xn-shell .xn-generate:hover,.xn-shell .xn-save-task:hover{background:#236fc1}.xn-create[hidden],.xn-reference[hidden]{display:none}.xn-create-head,.xn-create-toolbar,.xn-create-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}.xn-create-head{margin-bottom:18px}.xn-create-head h2{margin:0}.xn-create-head p{margin:5px 0 0;color:#64748b;font-size:13px}.xn-shell .xn-create-back,.xn-shell .xn-add-case,.xn-shell .xn-reset-form{border:1px solid #88baf0;border-radius:8px;background:#fff;color:#2874c2;padding:9px 13px;font-size:13px}.xn-create-form{display:grid;gap:14px;padding:20px;border:1px solid #dce8f3;border-radius:12px;background:#fff}.xn-create-form label{display:grid;gap:6px;color:#34495e;font-size:13px;font-weight:650}.xn-create-form input,.xn-create-form select,.xn-create-form textarea{width:100%;border:1px solid #cddce9;border-radius:8px;background:#fff!important;color:#22364b!important;padding:10px 12px;font:inherit;font-weight:400}.xn-create-form textarea{resize:vertical;line-height:1.55}.xn-create-form .xn-solution-input{font:13px/1.55 Consolas,monospace}.xn-form-grid{display:grid;grid-template-columns:2fr 1fr;gap:12px}.xn-create-toolbar h3{margin:0;color:#2c3e50;font-size:15px}.xn-create-toolbar button:disabled{opacity:.55;cursor:wait}.xn-case-help{margin:-8px 0 0;color:#64748b;font-size:12px}.xn-case-list{display:grid;gap:8px}.xn-case-row{display:grid;grid-template-columns:1fr 1fr auto;gap:8px}.xn-shell .xn-case-row button{border:1px solid #f4b4b4;border-radius:8px;background:#fff5f5;color:#ae3c3c;min-width:38px;font-size:19px}.xn-create-status{min-height:20px;color:#2874c2;font-size:13px}.xn-create-actions{justify-content:flex-end}.xn-start-options{display:flex;flex-wrap:wrap;gap:7px;padding:12px 14px 0}.xn-shell .xn-start-options button,.xn-shell .xn-reference-head button{border:1px solid #88baf0;border-radius:7px;background:#f5faff;color:#2874c2;padding:7px 10px;font-size:12px}.xn-reference{margin:10px 14px 0;border:1px solid #bedbf7;border-radius:8px;background:#f5faff;overflow:hidden}.xn-reference-head{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;color:#2563a5;font-size:12px}.xn-reference pre{margin:0;padding:12px;border-top:1px solid #dceaf8;white-space:pre-wrap;overflow-wrap:anywhere;color:#233c55;font:13px/1.55 Consolas,monospace}.xn-code{display:block}
@media(max-width:760px){.xn-shell>header,.xn-create-head{align-items:flex-start;flex-direction:column}.xn-header-actions{width:100%;justify-content:space-between}.xn-form-grid{grid-template-columns:1fr}.xn-case-row{grid-template-columns:1fr auto}.xn-case-row input:first-child{grid-column:1}.xn-case-row input:nth-child(2){grid-column:1}.xn-case-row button{grid-column:2;grid-row:1/3}.hg-file:not([hidden]){flex-wrap:wrap}.hg-file small{border-left:0;padding-left:0;width:100%}}
.xn-shell .xn-check-reference{border:1px solid #88baf0;border-radius:8px;background:#f5faff;color:#2874c2;padding:9px 13px;font-size:13px}.xn-shell .xn-check-reference:disabled,.xn-shell .xn-save-task:disabled{opacity:.55;cursor:wait}.xn-create-actions{flex-wrap:wrap}