@import"https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap";.app-container[data-v-7087ce57]{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);color:#333}.navbar[data-v-7087ce57]{background-color:#000c;color:#fff;display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;box-shadow:0 2px 10px #0000001a}.nav-brand[data-v-7087ce57]{font-size:1.5rem;font-weight:700}.nav-links[data-v-7087ce57]{display:flex;list-style:none;gap:2rem}.nav-links a[data-v-7087ce57]{color:#fff;text-decoration:none;transition:color .3s}.nav-links a[data-v-7087ce57]:hover{color:#667eea}.main-content[data-v-7087ce57]{padding:2rem;max-width:1200px;margin:0 auto}.cold-start-banner[data-v-7087ce57]{display:flex;align-items:center;justify-content:center;gap:.6rem;padding:.7rem 1rem;background-color:#fef3c7;color:#92400e;font-size:.9rem;border-bottom:1px solid #FCD34D}.cold-start-spinner[data-v-7087ce57]{width:14px;height:14px;border:2px solid rgba(146,64,14,.25);border-top-color:#92400e;border-radius:50%;animation:cold-start-spin-7087ce57 .8s linear infinite}@keyframes cold-start-spin-7087ce57{to{transform:rotate(360deg)}}.home[data-v-ae8ae3f1]{display:flex;justify-content:center;align-items:center;min-height:70vh}.welcome-card[data-v-ae8ae3f1]{background:#fff;border-radius:12px;padding:3rem;box-shadow:0 10px 40px #0000004d;max-width:600px;width:100%}h1[data-v-ae8ae3f1]{color:#667eea;margin-bottom:1rem;text-align:center;font-size:2rem}h2[data-v-ae8ae3f1]{color:#764ba2;margin-top:2rem;margin-bottom:1rem;font-size:1.3rem}p[data-v-ae8ae3f1]{text-align:center;color:#666;margin-bottom:2rem}.tech-stack ul[data-v-ae8ae3f1]{list-style:none;padding:0}.tech-stack li[data-v-ae8ae3f1]{padding:.5rem 0;color:#555;font-size:1rem}.quick-links[data-v-ae8ae3f1]{text-align:center;margin-top:2rem}.btn[data-v-ae8ae3f1]{display:inline-block;padding:.75rem 2rem;border-radius:6px;text-decoration:none;font-weight:700;transition:all .3s;cursor:pointer}.btn-primary[data-v-ae8ae3f1]{background-color:#667eea;color:#fff}.btn-primary[data-v-ae8ae3f1]:hover{background-color:#764ba2;transform:translateY(-2px)}.api-status[data-v-ae8ae3f1]{margin-top:2rem;padding:1rem;background-color:#f5f5f5;border-radius:6px}#status[data-v-ae8ae3f1]{margin:0;text-align:center;font-weight:700}.user-list[data-v-6a69d62f]{background:#fff;border-radius:12px;padding:2rem;box-shadow:0 10px 40px #0000001a}.header[data-v-6a69d62f]{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}h1[data-v-6a69d62f]{color:#667eea;margin:0}h2[data-v-6a69d62f]{color:#667eea;margin-top:0}h3[data-v-6a69d62f]{margin:.5rem 0;font-size:1rem;color:#333}.btn[data-v-6a69d62f]{padding:.6rem 1.5rem;border:none;border-radius:6px;cursor:pointer;font-weight:700;transition:all .3s}.btn-add[data-v-6a69d62f]{background-color:#667eea;color:#fff}.btn-add[data-v-6a69d62f]:hover{background-color:#764ba2}.btn-primary[data-v-6a69d62f]{background-color:#667eea;color:#fff;margin-right:8px}.btn-primary[data-v-6a69d62f]:hover{background-color:#764ba2}.btn-primary[data-v-6a69d62f]:disabled{background-color:#a0a0a0;cursor:not-allowed}.btn-cancel[data-v-6a69d62f]{background-color:#e2e8f0;color:#333}.btn-edit[data-v-6a69d62f]{background-color:#48bb78;color:#fff;padding:.4rem .8rem;font-size:.85rem;margin-right:4px}.btn-delete[data-v-6a69d62f]{background-color:#f56565;color:#fff;padding:.4rem .8rem;font-size:.85rem}.btn-sm[data-v-6a69d62f]{padding:.3rem .7rem;font-size:.8rem;border:none;border-radius:4px;cursor:pointer}.btn-info[data-v-6a69d62f]{background-color:#4299e1;color:#fff}.btn-small-danger[data-v-6a69d62f]{background-color:#f56565;color:#fff;border:none;border-radius:4px;padding:.2rem .6rem;cursor:pointer;font-size:.8rem}.form-card[data-v-6a69d62f]{background-color:#f8f9fa;border-radius:8px;padding:1.5rem;margin-bottom:2rem;border:2px solid #667eea}.form-row[data-v-6a69d62f]{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.form-group[data-v-6a69d62f]{margin-bottom:1rem}.form-group label[data-v-6a69d62f]{display:block;margin-bottom:.5rem;color:#333;font-weight:700;font-size:.9rem}.form-group input[data-v-6a69d62f],.form-group select[data-v-6a69d62f]{width:100%;padding:.6rem;border:1px solid #ddd;border-radius:4px;font-size:.95rem}.form-group input[data-v-6a69d62f]:focus,.form-group select[data-v-6a69d62f]:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.form-row-inline[data-v-6a69d62f]{display:flex;gap:.5rem;align-items:center}.form-row-inline select[data-v-6a69d62f]{flex:1;padding:.6rem;border:1px solid #ddd;border-radius:4px;font-size:.95rem}.class-tags[data-v-6a69d62f]{display:flex;flex-wrap:wrap;gap:4px}.class-tag[data-v-6a69d62f]{display:inline-block;background:#e8f4fd;color:#2b6cb0;padding:2px 8px;border-radius:12px;font-size:.8rem;font-weight:500;white-space:nowrap}.text-muted[data-v-6a69d62f]{color:#999}.message[data-v-6a69d62f]{padding:1rem;border-radius:6px;margin-bottom:1rem}.message.success[data-v-6a69d62f]{background-color:#c6f6d5;color:#22543d;border:1px solid #9ae6b4}.message.error[data-v-6a69d62f]{background-color:#fed7d7;color:#742a2a;border:1px solid #fc8181}.loading[data-v-6a69d62f],.empty[data-v-6a69d62f]{text-align:center;padding:2rem;color:#666}.empty-small[data-v-6a69d62f]{text-align:center;padding:.5rem;color:#999;font-size:.9rem}.users-table[data-v-6a69d62f]{overflow-x:auto}table[data-v-6a69d62f]{width:100%;border-collapse:collapse;margin-top:1rem}th[data-v-6a69d62f]{background-color:#f8f9fa;padding:.8rem;text-align:left;border-bottom:2px solid #667eea;font-weight:700;font-size:.9rem}td[data-v-6a69d62f]{padding:.8rem;border-bottom:1px solid #ddd;font-size:.9rem}tr[data-v-6a69d62f]:hover{background-color:#f8f9fa}.role-tag[data-v-6a69d62f]{padding:2px 8px;border-radius:4px;font-size:.8rem;font-weight:700}.role-tag.ADMIN[data-v-6a69d62f]{background:#fed7e2;color:#c53030}.role-tag.TEACHER[data-v-6a69d62f]{background:#c6f6d5;color:#22543d}.role-tag.STUDENT[data-v-6a69d62f]{background:#e2e8f0;color:#4a5568}.class-list[data-v-6a69d62f]{margin-bottom:1.5rem}.class-item[data-v-6a69d62f]{display:flex;justify-content:space-between;align-items:center;padding:.5rem;border-bottom:1px solid #eee}.class-item[data-v-6a69d62f]:hover{background-color:#f0f0f0}.add-class[data-v-6a69d62f]{padding-top:.5rem;border-top:1px solid #ddd}.class-group-list[data-v-626dd756]{background:#fff;border-radius:12px;padding:2rem;box-shadow:0 10px 40px #0000001a}.header[data-v-626dd756]{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}h1[data-v-626dd756]{color:#667eea;margin:0}h2[data-v-626dd756]{color:#667eea;margin-top:0}h3[data-v-626dd756]{margin:.5rem 0;font-size:1rem;color:#333}.btn[data-v-626dd756]{padding:.6rem 1.5rem;border:none;border-radius:6px;cursor:pointer;font-weight:700;transition:all .3s}.btn-add[data-v-626dd756]{background-color:#667eea;color:#fff}.btn-add[data-v-626dd756]:hover{background-color:#764ba2}.btn-primary[data-v-626dd756]{background-color:#667eea;color:#fff;margin-right:8px}.btn-primary[data-v-626dd756]:hover{background-color:#764ba2}.btn-primary[data-v-626dd756]:disabled{background-color:#a0a0a0;cursor:not-allowed}.btn-cancel[data-v-626dd756]{background-color:#e2e8f0;color:#333}.btn-edit[data-v-626dd756]{background-color:#48bb78;color:#fff;padding:.4rem .8rem;font-size:.85rem;margin-right:4px}.btn-delete[data-v-626dd756]{background-color:#f56565;color:#fff;padding:.4rem .8rem;font-size:.85rem}.btn-info[data-v-626dd756]{background-color:#4299e1;color:#fff;padding:.4rem .8rem;font-size:.85rem;margin-right:4px}.btn-small-danger[data-v-626dd756]{background-color:#f56565;color:#fff;border:none;border-radius:4px;padding:.2rem .6rem;cursor:pointer;font-size:.8rem}.form-card[data-v-626dd756]{background-color:#f8f9fa;border-radius:8px;padding:1.5rem;margin-bottom:2rem;border:2px solid #667eea}.form-group[data-v-626dd756]{margin-bottom:1rem}.form-group label[data-v-626dd756]{display:block;margin-bottom:.5rem;color:#333;font-weight:700}.form-group input[data-v-626dd756],.form-group select[data-v-626dd756]{width:100%;padding:.6rem;border:1px solid #ddd;border-radius:4px;font-size:1rem}.form-group input[data-v-626dd756]:focus,.form-group select[data-v-626dd756]:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.form-row-inline[data-v-626dd756]{display:flex;gap:.5rem;align-items:center}.form-row-inline select[data-v-626dd756]{flex:1;padding:.6rem;border:1px solid #ddd;border-radius:4px;font-size:.95rem}.message[data-v-626dd756]{padding:1rem;border-radius:6px;margin-bottom:1rem}.message.success[data-v-626dd756]{background-color:#c6f6d5;color:#22543d;border:1px solid #9ae6b4}.message.error[data-v-626dd756]{background-color:#fed7d7;color:#742a2a;border:1px solid #fc8181}.loading[data-v-626dd756],.empty[data-v-626dd756]{text-align:center;padding:2rem;color:#666}.empty-small[data-v-626dd756]{text-align:center;padding:.5rem;color:#999;font-size:.9rem}.admin-notice[data-v-626dd756]{background-color:#fff3cd;color:#856404;padding:1rem;border-radius:6px;margin-bottom:1rem;border:1px solid #ffc107;text-align:center}table[data-v-626dd756]{width:100%;border-collapse:collapse;margin-top:1rem}th[data-v-626dd756]{background-color:#f8f9fa;padding:1rem;text-align:left;border-bottom:2px solid #667eea;font-weight:700}td[data-v-626dd756]{padding:1rem;border-bottom:1px solid #ddd}tr[data-v-626dd756]:hover{background-color:#f8f9fa}.student-list[data-v-626dd756]{margin-bottom:1.5rem}.student-item[data-v-626dd756]{display:flex;justify-content:space-between;align-items:center;padding:.5rem;border-bottom:1px solid #eee}.student-item[data-v-626dd756]:hover{background-color:#f0f0f0}.add-student[data-v-626dd756]{padding-top:.5rem;border-top:1px solid #ddd}.badge[data-v-ecf16701]{display:inline-flex;align-items:center;gap:4px;border-radius:20px;padding:2px 9px;font-size:11px;font-weight:500;white-space:nowrap}.badge.small[data-v-ecf16701]{font-size:10px;padding:1px 7px}.badge-todo[data-v-ecf16701]{background:#e1f5ee;color:#0f6e56}.badge-in_progress[data-v-ecf16701]{background:#e6f1fb;color:#185fa5}.badge-done[data-v-ecf16701]{background:#eaf3de;color:#3b6d11}.badge-late[data-v-ecf16701]{background:#fcebeb;color:#a32d2d}.dot[data-v-ecf16701]{width:5px;height:5px;border-radius:50%;display:inline-block}.dot-todo[data-v-ecf16701]{background:#1d9e75}.dot-in_progress[data-v-ecf16701]{background:#378add}.dot-done[data-v-ecf16701]{background:#639922}.dot-late[data-v-ecf16701]{background:#e24b4a}.sub-node[data-v-0b09474b]{width:100%}.sub-item[data-v-0b09474b]{display:flex;align-items:flex-start;gap:0;padding:10px 16px;border-top:.5px solid #f0f0ee}.sub-item[data-v-0b09474b]:hover{background:#fafaf9}.connector[data-v-0b09474b]{display:flex;flex-direction:column;align-items:center;width:26px;flex-shrink:0;align-self:stretch;padding-top:2px}.v-line[data-v-0b09474b]{width:1px;background:#ddd;flex:1;min-height:6px}.v-line.invisible[data-v-0b09474b]{background:transparent}.node-dot[data-v-0b09474b]{width:8px;height:8px;border-radius:50%;border:1.5px solid #ccc;background:#fff;flex-shrink:0}.h-line[data-v-0b09474b]{width:12px;height:1px;background:#ddd;flex-shrink:0;margin-top:12px}.sub-header[data-v-0b09474b]{flex:1;min-width:0;display:flex;align-items:flex-start;gap:0;cursor:pointer;-webkit-user-select:none;user-select:none;padding:2px 0}.sub-header[data-v-0b09474b]:hover{background:#f5f5f3;border-radius:6px}.sub-toggle[data-v-0b09474b]{font-size:12px;color:#999;margin-top:2px;flex-shrink:0;margin-right:8px}.sub-body[data-v-0b09474b]{flex:1;min-width:0}.sub-title-row[data-v-0b09474b]{display:flex;align-items:center;gap:7px;margin-bottom:4px;flex-wrap:wrap}.sub-title[data-v-0b09474b]{font-size:13px;color:#111}.sub-depth[data-v-0b09474b]{font-size:10px;color:#666;background:#f0f8ff;border-radius:6px;padding:1px 5px}.sub-desc[data-v-0b09474b]{font-size:11px;color:#888;margin-bottom:5px;line-height:1.5}.sub-meta[data-v-0b09474b]{display:flex;gap:12px;font-size:11px;color:#888;flex-wrap:wrap}.sub-meta .class-badge[data-v-0b09474b]{background:#e8f4fd;color:#185fa5;border-radius:6px;padding:0 5px;font-size:10px;font-weight:500}.sub-actions[data-v-0b09474b]{display:flex;gap:4px;flex-shrink:0;margin-top:2px}.btn-icon[data-v-0b09474b]{border:.5px solid #e0e0e0;background:transparent;border-radius:6px;padding:3px 8px;font-size:11px;cursor:pointer;color:#888}.btn-icon[data-v-0b09474b]:hover{background:#f5f5f3;color:#333}.btn-add-sub[data-v-0b09474b]{border:.5px solid #1D9E75;color:#0f6e56;background:transparent;border-radius:6px;padding:2px 6px;font-size:10px;cursor:pointer;font-weight:500}.btn-add-sub[data-v-0b09474b]:hover{background:#e1f5ee}.nested-sub-list[data-v-0b09474b]{margin-left:26px;padding-left:10px;border-left:1px solid #eee;width:calc(100% - 26px)}.slide-enter-active[data-v-0b09474b],.slide-leave-active[data-v-0b09474b]{transition:max-height .2s ease,opacity .2s ease;overflow:hidden}.slide-enter-from[data-v-0b09474b],.slide-leave-to[data-v-0b09474b]{max-height:0;opacity:0}.slide-enter-to[data-v-0b09474b],.slide-leave-from[data-v-0b09474b]{max-height:2000px;opacity:1}.sub-student-section[data-v-0b09474b]{margin-top:6px;display:flex;flex-direction:column;gap:4px}.my-progress-row[data-v-0b09474b]{display:flex;align-items:center;gap:8px;background:#f0faf5;border-radius:6px;padding:3px 8px}.my-progress-label[data-v-0b09474b]{font-size:10px;color:#0f6e56;font-weight:500;white-space:nowrap}.my-progress-slider[data-v-0b09474b]{flex:1;height:3px;cursor:pointer}.my-dates-row[data-v-0b09474b]{display:flex;align-items:center;gap:4px;background:#fafafa;border-radius:4px;padding:2px 6px}.date-label[data-v-0b09474b]{font-size:10px;color:#888}.date-input[data-v-0b09474b]{border:.5px solid #ccc;border-radius:3px;padding:1px 4px;font-size:10px;width:95px}.sub-assignments-row[data-v-0b09474b]{display:flex;align-items:center;gap:4px;flex-wrap:wrap;background:#fafafa;border-radius:4px;padding:2px 6px}.sec-label[data-v-0b09474b]{font-size:11px;color:#555}.assignment-link a[data-v-0b09474b]{color:#185fa5;font-size:11px;text-decoration:none}.assignment-link a[data-v-0b09474b]:hover{text-decoration:underline}.pct[data-v-0b09474b]{font-size:10px;color:#888;min-width:24px;text-align:right}.sub-comments-section[data-v-0b09474b]{margin-top:2px}.btn-comment-toggle[data-v-0b09474b]{border:none;background:#f5f5f3;border-radius:4px;padding:2px 8px;font-size:10px;cursor:pointer;color:#555}.btn-comment-toggle[data-v-0b09474b]:hover{background:#e8e8e8}.comments-body[data-v-0b09474b]{padding:6px 8px;border:.5px solid #eee;border-radius:6px;margin-top:4px;background:#fafafa}.comment-list[data-v-0b09474b]{margin-bottom:6px}.comment-item[data-v-0b09474b]{margin-bottom:6px;padding-bottom:4px;border-bottom:.5px solid #f0f0ee}.comment-item[data-v-0b09474b]:last-child{border-bottom:none}.comment-meta[data-v-0b09474b]{font-size:10px;color:#aaa;display:flex;justify-content:space-between;align-items:center}.comment-author[data-v-0b09474b]{display:flex;align-items:center;gap:3px}.author-role[data-v-0b09474b]{font-size:9px;padding:1px 4px;border-radius:3px;font-weight:500}.author-role.teacher[data-v-0b09474b]{background:#e8f4fd;color:#185fa5}.author-role.student[data-v-0b09474b]{background:#e1f5ee;color:#0f6e56}.comment-del[data-v-0b09474b]{border:none;background:none;color:#e24b4a;cursor:pointer;font-size:10px}.comment-content[data-v-0b09474b]{font-size:11px;color:#333;margin:2px 0;line-height:1.4}.comment-attachments[data-v-0b09474b]{display:flex;gap:4px;flex-wrap:wrap;margin-top:2px}.attachment-link[data-v-0b09474b]{display:inline-flex;align-items:center;gap:2px;font-size:10px;color:#185fa5;text-decoration:none;background:#f0f6ff;padding:1px 6px;border-radius:3px}.attachment-link[data-v-0b09474b]:hover{background:#dce8f8;text-decoration:underline}.comment-empty[data-v-0b09474b]{font-size:10px;color:#aaa;text-align:center;padding:4px 0}.comment-input-area[data-v-0b09474b]{border-top:.5px solid #eee;padding-top:4px}.comment-input-area textarea[data-v-0b09474b]{width:100%;border:.5px solid #ccc;border-radius:4px;padding:3px 6px;font-size:11px;resize:vertical;box-sizing:border-box}.file-preview-list[data-v-0b09474b]{display:flex;flex-direction:column;gap:3px;margin:4px 0;max-height:100px;overflow-y:auto}.file-preview-item[data-v-0b09474b]{display:flex;align-items:center;gap:4px;background:#f5f7fa;border:.5px solid #e0e4e8;border-radius:4px;padding:2px 6px;font-size:10px}.file-preview-icon[data-v-0b09474b]{font-size:11px}.file-preview-name[data-v-0b09474b]{flex:1;color:#333;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-preview-size[data-v-0b09474b]{color:#999;font-size:9px;white-space:nowrap}.file-preview-remove[data-v-0b09474b]{border:none;background:none;color:#e24b4a;cursor:pointer;font-size:11px;padding:0 2px}.file-preview-remove[data-v-0b09474b]:hover{color:#c0392b}.comment-actions[data-v-0b09474b]{display:flex;gap:4px;justify-content:flex-end;margin-top:3px}.btn-upload[data-v-0b09474b],.btn-send[data-v-0b09474b]{border:.5px solid #ccc;border-radius:4px;padding:2px 8px;font-size:10px;cursor:pointer;background:#fff;color:#666}.btn-send[data-v-0b09474b]{background:#1d9e75;color:#fff;border-color:#1d9e75}.btn-send[data-v-0b09474b]:hover{background:#0f6e56}.btn-send[data-v-0b09474b]:disabled{opacity:.5;cursor:not-allowed}.sub-private-comments-section[data-v-0b09474b]{margin-top:2px}.btn-private-toggle[data-v-0b09474b]{border:none;background:#fff0f0;border-radius:4px;padding:2px 8px;font-size:10px;cursor:pointer;color:#a32d2d}.btn-private-toggle[data-v-0b09474b]:hover{background:#ffe0e0}.private-target-select[data-v-0b09474b]{display:flex;align-items:center;gap:6px;margin-bottom:4px}.private-target-select label[data-v-0b09474b]{font-size:10px;color:#a32d2d;font-weight:500;white-space:nowrap}.private-target-select select[data-v-0b09474b]{border:.5px solid #e0b0b0;border-radius:4px;padding:2px 6px;font-size:10px;flex:1;background:#fffdf5;color:#333}.target-student[data-v-0b09474b]{font-size:9px;color:#a32d2d;background:#fff0f0;border-radius:3px;padding:1px 4px;font-weight:500}.parent-card[data-v-a54281f5]{background:#fff;border:.5px solid #ddd;border-radius:12px;overflow:hidden}.parent-header[data-v-a54281f5]{display:flex;align-items:flex-start;gap:10px;padding:14px 16px;cursor:pointer;-webkit-user-select:none;user-select:none}.parent-header[data-v-a54281f5]:hover{background:#f8f8f7}.toggle[data-v-a54281f5]{font-size:12px;color:#999;margin-top:2px;flex-shrink:0}.parent-info[data-v-a54281f5]{flex:1;min-width:0}.title-row[data-v-a54281f5]{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:6px}.title[data-v-a54281f5]{font-size:14px;font-weight:500;color:#111}.sub-count[data-v-a54281f5]{font-size:11px;color:#999;background:#f2f2f0;border-radius:10px;padding:1px 7px;margin-left:2px}.sub-count.has-subs[data-v-a54281f5]{color:#1d9e75;background:#e1f5ee;font-weight:500}.depth-badge[data-v-a54281f5]{font-size:10px;color:#666;background:#e8f4fd;border-radius:8px;padding:1px 6px}.meta-row[data-v-a54281f5]{display:flex;gap:14px;font-size:12px;color:#888;flex-wrap:wrap;margin-bottom:8px}.class-badge[data-v-a54281f5]{background:#e8f4fd;color:#185fa5;border-radius:8px;padding:0 6px;font-size:11px;font-weight:500}.progress-row[data-v-a54281f5]{display:flex;align-items:center;gap:8px;margin-bottom:4px}.bar-bg[data-v-a54281f5]{flex:1;height:5px;background:#f0f0ee;border-radius:3px;overflow:hidden}.bar-fill[data-v-a54281f5]{height:100%;border-radius:3px;transition:width .3s}.fill-todo[data-v-a54281f5]{background:#1d9e75}.fill-in_progress[data-v-a54281f5]{background:#378add}.fill-done[data-v-a54281f5]{background:#639922}.fill-late[data-v-a54281f5]{background:#e24b4a}.pct[data-v-a54281f5]{font-size:11px;color:#888;min-width:28px;text-align:right}.student-section[data-v-a54281f5]{margin-top:8px;display:flex;flex-direction:column;gap:6px}.my-progress-row[data-v-a54281f5]{display:flex;align-items:center;gap:8px;background:#f0faf5;border-radius:6px;padding:4px 8px}.my-progress-label[data-v-a54281f5]{font-size:11px;color:#0f6e56;font-weight:500;white-space:nowrap}.my-progress-slider[data-v-a54281f5]{flex:1;height:4px;cursor:pointer}.my-dates-row[data-v-a54281f5]{display:flex;gap:12px;align-items:center;background:#fafafa;border-radius:6px;padding:4px 8px}.date-field[data-v-a54281f5]{display:flex;align-items:center;gap:4px}.date-field label[data-v-a54281f5]{font-size:11px;color:#888;white-space:nowrap}.date-field input[data-v-a54281f5]{border:.5px solid #ccc;border-radius:4px;padding:2px 6px;font-size:11px;width:130px}.my-assignments-row[data-v-a54281f5]{display:flex;align-items:center;gap:4px;flex-wrap:wrap;background:#fafafa;border-radius:6px;padding:4px 8px;margin-bottom:8px}.section-label[data-v-a54281f5]{font-size:12px;color:#555}.assignment-link a[data-v-a54281f5]{color:#185fa5;font-size:12px;text-decoration:none}.assignment-link a[data-v-a54281f5]:hover{text-decoration:underline}.public-comments-section[data-v-a54281f5]{margin-top:8px;border:.5px solid #e8e8e8;border-radius:8px;overflow:hidden}.comments-header[data-v-a54281f5]{display:flex;justify-content:space-between;align-items:center;padding:6px 10px;cursor:pointer;background:#fafafa;font-size:12px;color:#555}.comments-header[data-v-a54281f5]:hover{background:#f5f5f3}.toggle-icon[data-v-a54281f5]{font-size:10px;color:#999}.comments-body[data-v-a54281f5]{padding:8px 10px;border-top:.5px solid #eee}.comment-list[data-v-a54281f5]{margin-bottom:8px}.comment-item[data-v-a54281f5]{margin-bottom:8px;padding-bottom:6px;border-bottom:.5px solid #f0f0ee}.comment-item[data-v-a54281f5]:last-child{border-bottom:none}.comment-meta[data-v-a54281f5]{font-size:11px;color:#aaa;display:flex;justify-content:space-between;align-items:center}.comment-author[data-v-a54281f5]{display:flex;align-items:center;gap:4px}.author-role[data-v-a54281f5]{font-size:10px;padding:1px 5px;border-radius:4px;font-weight:500}.author-role.teacher[data-v-a54281f5]{background:#e8f4fd;color:#185fa5}.author-role.student[data-v-a54281f5]{background:#e1f5ee;color:#0f6e56}.comment-del[data-v-a54281f5]{border:none;background:none;color:#e24b4a;cursor:pointer;font-size:11px}.comment-del[data-v-a54281f5]:hover{text-decoration:underline}.comment-content[data-v-a54281f5]{font-size:12px;color:#333;margin:2px 0;line-height:1.5}.comment-attachments[data-v-a54281f5]{display:flex;gap:6px;flex-wrap:wrap;margin-top:4px}.attachment-link[data-v-a54281f5]{display:inline-flex;align-items:center;gap:3px;font-size:11px;color:#185fa5;text-decoration:none;background:#f0f6ff;padding:2px 8px;border-radius:4px}.attachment-link[data-v-a54281f5]:hover{background:#dce8f8;text-decoration:underline}.comment-empty[data-v-a54281f5]{font-size:11px;color:#aaa;text-align:center;padding:8px 0}.comment-empty-sm[data-v-a54281f5]{font-size:10px;color:#bbb;text-align:center;padding:4px 0}.comment-input-area[data-v-a54281f5]{border-top:.5px solid #eee;padding-top:6px}.comment-input-area textarea[data-v-a54281f5]{width:100%;border:.5px solid #ccc;border-radius:6px;padding:5px 8px;font-size:12px;resize:vertical;box-sizing:border-box}.file-preview-list[data-v-a54281f5]{display:flex;flex-direction:column;gap:4px;margin:6px 0;max-height:120px;overflow-y:auto}.file-preview-item[data-v-a54281f5]{display:flex;align-items:center;gap:6px;background:#f5f7fa;border:.5px solid #e0e4e8;border-radius:6px;padding:4px 8px;font-size:11px}.file-preview-icon[data-v-a54281f5]{font-size:13px}.file-preview-name[data-v-a54281f5]{flex:1;color:#333;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-preview-size[data-v-a54281f5]{color:#999;font-size:10px;white-space:nowrap}.file-preview-remove[data-v-a54281f5]{border:none;background:none;color:#e24b4a;cursor:pointer;font-size:12px;padding:0 2px}.file-preview-remove[data-v-a54281f5]:hover{color:#c0392b}.comment-actions[data-v-a54281f5]{display:flex;gap:6px;justify-content:flex-end;margin-top:4px}.btn-upload[data-v-a54281f5],.btn-send[data-v-a54281f5]{border:.5px solid #ccc;border-radius:6px;padding:3px 10px;font-size:11px;cursor:pointer;background:#fff;color:#666}.btn-upload[data-v-a54281f5]:hover{background:#f5f5f3}.btn-send[data-v-a54281f5]{background:#1d9e75;color:#fff;border-color:#1d9e75}.btn-send[data-v-a54281f5]:hover{background:#0f6e56}.btn-send[data-v-a54281f5]:disabled{opacity:.5;cursor:not-allowed}.private-comments-section[data-v-a54281f5]{margin-top:6px;border:.5px solid #f0d0d0;border-radius:8px;overflow:hidden}.private-target-select[data-v-a54281f5]{display:flex;align-items:center;gap:6px;margin-bottom:4px}.private-target-select label[data-v-a54281f5]{font-size:11px;color:#a32d2d;font-weight:500;white-space:nowrap}.private-target-select select[data-v-a54281f5]{border:.5px solid #e0b0b0;border-radius:4px;padding:2px 6px;font-size:11px;flex:1;background:#fffdf5;color:#333}.target-student[data-v-a54281f5]{font-size:10px;color:#a32d2d;background:#fff0f0;border-radius:4px;padding:1px 5px;font-weight:500}.actions[data-v-a54281f5]{display:flex;gap:6px;flex-shrink:0;margin-top:2px}.btn-sub[data-v-a54281f5]{border:.5px solid #1D9E75;color:#0f6e56;background:transparent;border-radius:6px;padding:3px 8px;font-size:11px;cursor:pointer}.btn-sub[data-v-a54281f5]:hover{background:#e1f5ee}.btn-icon[data-v-a54281f5]{border:.5px solid #e0e0e0;background:transparent;border-radius:6px;padding:3px 8px;font-size:11px;cursor:pointer;color:#888}.btn-icon[data-v-a54281f5]:hover{background:#f5f5f3;color:#333}.btn-copyable-on[data-v-a54281f5]{background:#e1f5ee;color:#0f6e56;border-color:#1d9e75;font-weight:500}.sub-list[data-v-a54281f5]{border-top:.5px solid #eee}.sub-empty[data-v-a54281f5]{padding:20px 16px;font-size:12px;color:#aaa;text-align:center}.empty-icon[data-v-a54281f5]{font-size:24px;margin-bottom:8px}.empty-text[data-v-a54281f5]{font-weight:500;margin-bottom:4px}.empty-action[data-v-a54281f5]{font-size:11px;color:#888}.slide-enter-active[data-v-a54281f5],.slide-leave-active[data-v-a54281f5]{transition:all .2s ease;overflow:hidden}.slide-enter-from[data-v-a54281f5],.slide-leave-to[data-v-a54281f5]{max-height:0;opacity:0}.slide-enter-to[data-v-a54281f5],.slide-leave-from[data-v-a54281f5]{max-height:2000px;opacity:1}.expanded-section[data-v-a54281f5]{border-top:.5px solid #eee;padding:10px 16px;background:#fafafa}.expand-hint[data-v-a54281f5]{font-size:12px;color:#666;text-align:center}.ap[data-v-067cdd2f]{display:grid;grid-template-columns:1fr 260px;gap:10px}.ap-pane[data-v-067cdd2f]{border:.5px solid #ddd;border-radius:8px;background:#fff;display:flex;flex-direction:column;min-height:280px;max-height:340px}.ap-pane-head[data-v-067cdd2f]{display:flex;align-items:center;justify-content:space-between;padding:8px 10px;border-bottom:.5px solid #eee}.ap-pane-title[data-v-067cdd2f]{font-size:12px;font-weight:500;color:#333}.ap-muted[data-v-067cdd2f]{font-size:11px;color:#999}.ap-toolbar[data-v-067cdd2f]{padding:8px 10px;border-bottom:.5px solid #eee}.ap-input[data-v-067cdd2f]{width:100%;border:.5px solid #ddd;border-radius:6px;padding:5px 8px;font-size:12px;outline:none;background:#fff}.ap-input[data-v-067cdd2f]:focus{border-color:#1d9e75}.ap-filters[data-v-067cdd2f]{display:flex;align-items:center;gap:8px;margin-top:6px}.ap-filters .ap-input[data-v-067cdd2f]{flex:1}.ap-check[data-v-067cdd2f]{font-size:11px;color:#666;display:flex;align-items:center;gap:4px;white-space:nowrap;cursor:pointer}.ap-btn-sm[data-v-067cdd2f]{border:.5px solid #ddd;background:#fff;border-radius:6px;padding:4px 8px;font-size:11px;color:#555;cursor:pointer;white-space:nowrap}.ap-btn-sm[data-v-067cdd2f]:hover:not(:disabled){background:#f5f5f3}.ap-btn-sm[data-v-067cdd2f]:disabled{color:#ccc;cursor:default}.ap-list[data-v-067cdd2f]{flex:1;overflow-y:auto;padding:4px 0}.ap-state[data-v-067cdd2f]{text-align:center;padding:28px 12px;font-size:12px;color:#aaa}.ap-row[data-v-067cdd2f]{display:flex;align-items:center;gap:8px;padding:6px 10px;font-size:12px;cursor:pointer}.ap-row[data-v-067cdd2f]:hover{background:#fafaf9}.ap-row.picked[data-v-067cdd2f]{background:#e1f5ee}.ap-text[data-v-067cdd2f]{flex:1;min-width:0}.ap-title[data-v-067cdd2f]{display:block;color:#222;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ap-sub[data-v-067cdd2f]{display:flex;gap:8px;align-items:center;margin-top:2px;font-size:11px;color:#999}.ap-tag[data-v-067cdd2f]{background:#f0f0ee;border-radius:4px;padding:1px 5px;color:#666}.ap-due.overdue[data-v-067cdd2f]{color:#c2410c}.ap-pane-foot[data-v-067cdd2f]{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;border-top:.5px solid #eee}.ap-pager[data-v-067cdd2f]{display:flex;align-items:center;gap:8px}.ap-icon-btn[data-v-067cdd2f]{border:.5px solid #ddd;background:#fff;border-radius:5px;width:22px;height:22px;line-height:1;font-size:12px;color:#666;cursor:pointer}.ap-icon-btn[data-v-067cdd2f]:hover:not(:disabled){background:#f5f5f3}.ap-icon-btn[data-v-067cdd2f]:disabled{color:#ddd;cursor:default}.ap-icon-btn.danger[data-v-067cdd2f]{color:#b91c1c;border-color:#fca5a5}.ap-icon-btn.danger[data-v-067cdd2f]:hover{background:#fef2f2}@media (max-width: 660px){.ap[data-v-067cdd2f]{grid-template-columns:1fr}.ap-pane[data-v-067cdd2f]{min-height:180px;max-height:220px}}.modal-mask[data-v-f070a099]{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-box[data-v-f070a099]{background:#fff;border-radius:12px;width:min(760px,95vw);max-height:90vh;overflow-y:auto;border:.5px solid #ddd}.modal-header[data-v-f070a099]{display:flex;align-items:center;justify-content:space-between;padding:18px 22px 0}.modal-title[data-v-f070a099]{font-size:15px;font-weight:500;color:#111}.close-btn[data-v-f070a099]{border:none;background:none;font-size:14px;cursor:pointer;color:#888}.close-btn[data-v-f070a099]:hover{color:#333}.parent-hint[data-v-f070a099]{margin:8px 22px 0;background:#f5f5f3;border-radius:8px;padding:6px 10px;font-size:12px;color:#666}.copy-section[data-v-f070a099]{margin:8px 22px 0;padding:8px 10px;background:#f0faf5;border:.5px solid #c8e6d9;border-radius:8px}.copy-header[data-v-f070a099]{font-size:12px;font-weight:500;color:#0f6e56;margin-bottom:4px}.copy-row[data-v-f070a099]{display:flex;flex-direction:column;gap:4px}.copy-info[data-v-f070a099]{font-size:11px;color:#888;margin-top:2px}.modal-body[data-v-f070a099]{padding:14px 22px}.modal-footer[data-v-f070a099]{display:flex;gap:8px;justify-content:flex-end;padding:12px 22px 18px;border-top:.5px solid #eee}.field[data-v-f070a099]{margin-bottom:12px}.field label[data-v-f070a099]{display:block;font-size:12px;color:#666;margin-bottom:4px}.field input[data-v-f070a099],.field select[data-v-f070a099],.field textarea[data-v-f070a099]{width:100%;border:.5px solid #ccc;border-radius:8px;padding:7px 10px;font-size:13px;color:#111;background:#fff}.field textarea[data-v-f070a099]{height:60px;resize:vertical}.field-row[data-v-f070a099]{display:grid;grid-template-columns:1fr 1fr;gap:10px}.field-section[data-v-f070a099]{font-size:11px;font-weight:500;color:#999;text-transform:uppercase;letter-spacing:.07em;padding:8px 0 4px;border-top:.5px solid #eee;margin-top:4px}.required[data-v-f070a099]{color:#e24b4a}.progress-input[data-v-f070a099]{display:flex;align-items:center;gap:8px}.progress-input input[type=range][data-v-f070a099]{flex:1}.progress-input span[data-v-f070a099]{font-size:12px;font-weight:500;min-width:32px}.btn-cancel[data-v-f070a099]{border:.5px solid #ccc;background:transparent;border-radius:8px;padding:6px 14px;font-size:13px;cursor:pointer;color:#666}.btn-save[data-v-f070a099]{background:#1d9e75;color:#fff;border:none;border-radius:8px;padding:6px 18px;font-size:13px;font-weight:500;cursor:pointer}.btn-save[data-v-f070a099]:hover{background:#0f6e56}.btn-save[data-v-f070a099]:disabled{opacity:.6;cursor:not-allowed}.assign-students[data-v-f070a099]{background:#f9fafb;border:1px solid #eef0f2;border-radius:10px;padding:10px}.selected-students[data-v-f070a099]{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.student-chip[data-v-f070a099]{display:inline-flex;align-items:center;gap:4px;background:#e1f5ee;color:#0f6e56;border-radius:999px;padding:3px 4px 3px 10px;font-size:12px}.chip-remove[data-v-f070a099]{border:none;background:transparent;color:#0f6e56;cursor:pointer;font-size:12px;padding:0 4px}.chip-remove[data-v-f070a099]:hover{color:#c0392b}.assign-empty[data-v-f070a099],.assign-empty-sm[data-v-f070a099]{font-size:12px;color:#999;text-align:center;padding:6px 0}.assign-empty-sm[data-v-f070a099]{padding:4px 0;text-align:left}.search-input[data-v-f070a099]{width:100%;border:.5px solid #ccc;border-radius:6px;padding:5px 10px;font-size:12px}.student-list[data-v-f070a099]{max-height:160px;overflow-y:auto;border:.5px solid #eee;border-radius:6px;background:#fff;margin-top:6px}.student-item[data-v-f070a099]{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;cursor:pointer;font-size:12px;border-bottom:.5px solid #f5f5f5}.student-item[data-v-f070a099]:last-child{border-bottom:none}.student-item[data-v-f070a099]:hover{background:#f0faf5}.student-item.picked[data-v-f070a099]{background:#e1f5ee;color:#0f6e56}.student-class[data-v-f070a099]{color:#888;font-size:11px}.page[data-v-bede1585]{max-width:900px;margin:0 auto;padding:2rem 1rem;font-family:sans-serif}.top-bar[data-v-bede1585]{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.25rem}.page-title[data-v-bede1585]{font-size:20px;font-weight:500;color:#111}.page-sub[data-v-bede1585]{font-size:13px;color:#888;margin-top:2px}.btn-add[data-v-bede1585]{background:#1d9e75;color:#fff;border:none;border-radius:8px;padding:8px 16px;font-size:13px;font-weight:500;cursor:pointer}.btn-add[data-v-bede1585]:hover{background:#0f6e56}.btn-lib[data-v-bede1585]{background:#fff;color:#0f6e56;border:.5px solid #1D9E75;border-radius:8px;padding:8px 16px;font-size:13px;font-weight:500;cursor:pointer}.btn-lib[data-v-bede1585]:hover{background:#e1f5ee}.stats-grid[data-v-bede1585]{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:1.25rem}.stat-card[data-v-bede1585]{background:#f5f5f3;border-radius:8px;padding:12px 14px}.stat-label[data-v-bede1585]{font-size:11px;color:#888;text-transform:uppercase;letter-spacing:.06em;margin-bottom:5px}.stat-val[data-v-bede1585]{font-size:22px;font-weight:500;color:#111}.stat-sub[data-v-bede1585]{font-size:11px;color:#888;margin-top:2px}.toolbar[data-v-bede1585]{display:flex;gap:8px;margin-bottom:1rem;align-items:center;flex-wrap:wrap}.filter-btn[data-v-bede1585]{border:.5px solid #ccc;background:transparent;border-radius:20px;padding:5px 14px;font-size:12px;cursor:pointer;color:#888}.filter-btn.active[data-v-bede1585]{background:#1d9e75;color:#fff;border-color:#1d9e75}.filter-btn[data-v-bede1585]:hover:not(.active){background:#f5f5f3}.search-input[data-v-bede1585]{border:.5px solid #ccc;border-radius:8px;padding:5px 12px;font-size:12px;color:#111;background:#fff;margin-left:auto;width:180px}.goal-list[data-v-bede1585]{display:flex;flex-direction:column;gap:12px}.loading[data-v-bede1585],.empty[data-v-bede1585]{text-align:center;padding:2rem;color:#aaa;font-size:13px}.node-wrapper[data-v-f46cee65]{background:#fff;border:.5px solid #ddd;border-radius:10px;overflow:hidden}.node-header[data-v-f46cee65]{display:flex;align-items:center;gap:8px;padding:10px 14px;cursor:pointer;-webkit-user-select:none;user-select:none;background:#f8f8f7}.node-header[data-v-f46cee65]:hover{background:#f0f0ee}.toggle[data-v-f46cee65]{font-size:12px;color:#999}.node-title[data-v-f46cee65]{font-size:14px;font-weight:500;color:#111}.student-count[data-v-f46cee65]{font-size:11px;color:#888;background:#e8f4fd;border-radius:8px;padding:1px 6px;margin-left:auto}.node-body[data-v-f46cee65]{padding:10px 14px;border-top:.5px solid #eee}.progress-table[data-v-f46cee65]{margin-bottom:12px}.table-header[data-v-f46cee65],.table-row[data-v-f46cee65]{display:grid;grid-template-columns:120px 1fr 90px 100px 100px 80px;gap:8px;align-items:center;padding:6px 0;font-size:12px}.table-header[data-v-f46cee65]{color:#999;font-weight:500;border-bottom:.5px solid #eee}.table-row[data-v-f46cee65]{border-bottom:.5px solid #f5f5f5}.table-row[data-v-f46cee65]:hover{background:#fafaf9}.col-name[data-v-f46cee65]{font-weight:500;color:#111}.col-progress[data-v-f46cee65]{display:flex;align-items:center;gap:6px}.bar-bg[data-v-f46cee65]{flex:1;height:4px;background:#f0f0ee;border-radius:2px;overflow:hidden}.bar-fill[data-v-f46cee65]{height:100%;background:#1d9e75;border-radius:2px;transition:width .3s}.pct[data-v-f46cee65]{font-size:11px;color:#888;min-width:28px}.status-badge[data-v-f46cee65]{font-size:11px;padding:1px 6px;border-radius:8px}.status-todo[data-v-f46cee65]{background:#f0f0ee;color:#888}.status-progress[data-v-f46cee65]{background:#e1f5ee;color:#0f6e56}.status-done[data-v-f46cee65]{background:#e8f5e8;color:#3b6d11}.status-late[data-v-f46cee65]{background:#fde8e8;color:#a32d2d}.col-action[data-v-f46cee65]{text-align:center}.btn-private[data-v-f46cee65]{border:.5px solid #185FA5;color:#185fa5;background:transparent;border-radius:6px;padding:2px 6px;font-size:10px;cursor:pointer;white-space:nowrap}.btn-private[data-v-f46cee65]:hover{background:#e8f4fd}.no-students[data-v-f46cee65]{font-size:12px;color:#aaa;padding:10px 0;text-align:center}.private-section[data-v-f46cee65]{border:.5px solid #d0d8e8;border-radius:8px;margin-bottom:12px;overflow:hidden}.private-header[data-v-f46cee65]{display:flex;justify-content:space-between;align-items:center;padding:6px 10px;background:#e8f4fd;font-size:12px;color:#185fa5;font-weight:500}.btn-close[data-v-f46cee65]{border:none;background:none;color:#888;cursor:pointer;font-size:14px}.btn-close[data-v-f46cee65]:hover{color:#333}.private-comments[data-v-f46cee65]{padding:8px 10px}.comment-list[data-v-f46cee65]{margin-bottom:6px}.comment-item[data-v-f46cee65]{margin-bottom:6px;padding-bottom:4px;border-bottom:.5px solid #f0f0ee}.comment-item[data-v-f46cee65]:last-child{border-bottom:none}.comment-meta[data-v-f46cee65]{font-size:10px;color:#aaa;display:flex;justify-content:space-between;align-items:center}.comment-author[data-v-f46cee65]{display:flex;align-items:center;gap:3px}.author-role[data-v-f46cee65]{font-size:9px;padding:1px 4px;border-radius:3px;font-weight:500}.author-role.teacher[data-v-f46cee65]{background:#e8f4fd;color:#185fa5}.author-role.student[data-v-f46cee65]{background:#e1f5ee;color:#0f6e56}.comment-del[data-v-f46cee65]{border:none;background:none;color:#e24b4a;cursor:pointer;font-size:10px}.comment-content[data-v-f46cee65]{font-size:11px;color:#333;margin:2px 0;line-height:1.4}.comment-attachments[data-v-f46cee65]{display:flex;gap:4px;flex-wrap:wrap;margin-top:2px}.attachment-link[data-v-f46cee65]{display:inline-flex;align-items:center;gap:2px;font-size:10px;color:#185fa5;text-decoration:none;background:#f0f6ff;padding:1px 6px;border-radius:3px}.attachment-link[data-v-f46cee65]:hover{background:#dce8f8;text-decoration:underline}.comment-empty[data-v-f46cee65]{font-size:10px;color:#aaa;text-align:center;padding:4px 0}.comment-input-area[data-v-f46cee65]{border-top:.5px solid #eee;padding-top:4px}.comment-input-area textarea[data-v-f46cee65]{width:100%;border:.5px solid #ccc;border-radius:4px;padding:3px 6px;font-size:11px;resize:vertical;box-sizing:border-box}.file-preview-list[data-v-f46cee65]{display:flex;flex-direction:column;gap:3px;margin:4px 0;max-height:100px;overflow-y:auto}.file-preview-item[data-v-f46cee65]{display:flex;align-items:center;gap:4px;background:#f5f7fa;border:.5px solid #e0e4e8;border-radius:4px;padding:2px 6px;font-size:10px}.file-preview-icon[data-v-f46cee65]{font-size:11px}.file-preview-name[data-v-f46cee65]{flex:1;color:#333;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-preview-size[data-v-f46cee65]{color:#999;font-size:9px;white-space:nowrap}.file-preview-remove[data-v-f46cee65]{border:none;background:none;color:#e24b4a;cursor:pointer;font-size:11px;padding:0 2px}.file-preview-remove[data-v-f46cee65]:hover{color:#c0392b}.comment-actions[data-v-f46cee65]{display:flex;gap:4px;justify-content:flex-end;margin-top:3px}.btn-upload[data-v-f46cee65],.btn-send[data-v-f46cee65]{border:.5px solid #ccc;border-radius:4px;padding:2px 8px;font-size:10px;cursor:pointer;background:#fff;color:#666}.btn-send[data-v-f46cee65]{background:#1d9e75;color:#fff;border-color:#1d9e75}.btn-send[data-v-f46cee65]:hover{background:#0f6e56}.btn-send[data-v-f46cee65]:disabled{opacity:.5;cursor:not-allowed}.comments-section[data-v-f46cee65]{border-top:.5px solid #eee;padding-top:10px;margin-top:10px}.comments-title[data-v-f46cee65]{font-size:13px;font-weight:500;color:#111;margin-bottom:8px}.comment-group[data-v-f46cee65]{margin-bottom:8px}.comment-student[data-v-f46cee65]{cursor:pointer;font-size:12px;color:#185fa5;font-weight:500;padding:4px 0}.comment-student[data-v-f46cee65]:hover{color:#0d3d6e}.comment-count[data-v-f46cee65]{font-weight:400;color:#888}.comment-list[data-v-f46cee65]{padding:4px 0 4px 12px;border-left:2px solid #e8f4fd;margin:4px 0}.sub-nodes[data-v-f46cee65]{margin-top:10px;display:flex;flex-direction:column;gap:8px;padding-left:8px}.slide-enter-active[data-v-f46cee65],.slide-leave-active[data-v-f46cee65]{transition:all .2s ease;overflow:hidden}.slide-enter-from[data-v-f46cee65],.slide-leave-to[data-v-f46cee65]{max-height:0;opacity:0}.slide-enter-to[data-v-f46cee65],.slide-leave-from[data-v-f46cee65]{max-height:2000px;opacity:1}.page[data-v-9c7b9d00]{max-width:1000px;margin:0 auto;padding:2rem 1rem;font-family:sans-serif}.top-bar[data-v-9c7b9d00]{display:flex;align-items:center;gap:12px;margin-bottom:1.25rem}.btn-back[data-v-9c7b9d00]{border:.5px solid #ccc;background:transparent;border-radius:8px;padding:6px 12px;font-size:13px;cursor:pointer;color:#666;white-space:nowrap}.btn-back[data-v-9c7b9d00]:hover{background:#f5f5f3}.page-title[data-v-9c7b9d00]{font-size:20px;font-weight:500;color:#111}.page-sub[data-v-9c7b9d00]{font-size:13px;color:#888;margin-top:2px}.select-section[data-v-9c7b9d00]{display:flex;align-items:center;gap:10px;margin-bottom:1.5rem;background:#f5f5f3;border-radius:8px;padding:12px 16px}.select-section label[data-v-9c7b9d00]{font-size:13px;color:#666;font-weight:500;white-space:nowrap}.form-control[data-v-9c7b9d00]{flex:1;border:.5px solid #ccc;border-radius:8px;padding:7px 10px;font-size:13px}.loading[data-v-9c7b9d00],.empty[data-v-9c7b9d00]{text-align:center;padding:3rem;color:#aaa;font-size:13px}.overview-tree[data-v-9c7b9d00]{display:flex;flex-direction:column;gap:12px}.page[data-v-735e6535]{max-width:900px;margin:0 auto;padding:2rem 1rem;font-family:sans-serif}.top-bar[data-v-735e6535]{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.25rem}.page-title[data-v-735e6535]{font-size:20px;font-weight:500;color:#111}.page-sub[data-v-735e6535]{font-size:13px;color:#888;margin-top:2px}.btn-back[data-v-735e6535]{background:transparent;border:.5px solid #ddd;border-radius:8px;padding:8px 14px;font-size:13px;color:#555;cursor:pointer}.btn-back[data-v-735e6535]:hover{background:#f5f5f3}.toolbar[data-v-735e6535]{display:flex;align-items:center;gap:12px;margin-bottom:1rem}.search[data-v-735e6535]{flex:1;border:.5px solid #ddd;border-radius:8px;padding:8px 12px;font-size:13px;outline:none}.search[data-v-735e6535]:focus{border-color:#1d9e75}.mine-toggle[data-v-735e6535]{font-size:12px;color:#666;display:flex;align-items:center;gap:5px;cursor:pointer}.count[data-v-735e6535]{font-size:12px;color:#999;white-space:nowrap}.state[data-v-735e6535]{text-align:center;padding:48px 16px;color:#999;font-size:13px}.empty-icon[data-v-735e6535]{font-size:28px;margin-bottom:10px}.empty-text[data-v-735e6535]{font-weight:500;color:#666;margin-bottom:6px}.empty-hint[data-v-735e6535]{font-size:12px;color:#aaa;max-width:420px;margin:0 auto;line-height:1.6}.card-list[data-v-735e6535]{display:flex;flex-direction:column;gap:10px}.tpl-card[data-v-735e6535]{background:#fff;border:.5px solid #ddd;border-radius:12px;overflow:hidden}.tpl-head[data-v-735e6535]{display:flex;align-items:flex-start;gap:10px;padding:14px 16px;cursor:pointer}.tpl-head[data-v-735e6535]:hover{background:#fafaf9}.toggle[data-v-735e6535]{color:#aaa;font-size:12px;padding-top:3px}.tpl-main[data-v-735e6535]{flex:1;min-width:0}.tpl-title-row[data-v-735e6535]{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.tpl-title[data-v-735e6535]{font-size:14px;font-weight:500;color:#111}.author-badge[data-v-735e6535]{font-size:11px;padding:2px 8px;border-radius:10px;background:#eef2ff;color:#4338ca}.author-badge.mine[data-v-735e6535]{background:#e1f5ee;color:#0f6e56}.tpl-meta[data-v-735e6535]{display:flex;gap:12px;font-size:12px;color:#888;margin-top:5px;flex-wrap:wrap}.tpl-desc[data-v-735e6535]{font-size:12px;color:#777;margin-top:6px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.btn-use[data-v-735e6535]{background:#1d9e75;color:#fff;border:none;border-radius:8px;padding:7px 14px;font-size:12px;font-weight:500;cursor:pointer;white-space:nowrap}.btn-use[data-v-735e6535]:hover:not(:disabled){background:#0f6e56}.btn-use[data-v-735e6535]:disabled{background:#bbb;cursor:default}.tpl-body[data-v-735e6535]{border-top:.5px solid #eee;padding:14px 16px;background:#fbfbfa}.section[data-v-735e6535]{margin-bottom:14px}.section-label[data-v-735e6535]{font-size:12px;font-weight:500;color:#555;margin-bottom:6px}.assignment-tags[data-v-735e6535]{display:flex;flex-wrap:wrap;gap:6px}.tag[data-v-735e6535]{font-size:11px;background:#fff;border:.5px solid #ddd;border-radius:6px;padding:3px 8px;color:#555}.no-subs[data-v-735e6535]{font-size:12px;color:#aaa}.tree[data-v-735e6535]{list-style:none;padding-left:16px;margin:0}.tree-node[data-v-735e6535]{font-size:12px;color:#444;padding:3px 0;position:relative}.tree-node[data-v-735e6535]:before{content:"·";position:absolute;left:-11px;color:#bbb}.node-title[data-v-735e6535]{color:#333}.node-tag[data-v-735e6535]{font-size:10px;color:#888;margin-left:6px}.copy-note[data-v-735e6535]{font-size:11px;color:#92400e;background:#fef3c7;border-radius:6px;padding:8px 10px;line-height:1.6}.slide-enter-active[data-v-735e6535],.slide-leave-active[data-v-735e6535]{transition:all .2s ease;overflow:hidden}.slide-enter-from[data-v-735e6535],.slide-leave-to[data-v-735e6535]{opacity:0;max-height:0}.slide-enter-to[data-v-735e6535],.slide-leave-from[data-v-735e6535]{opacity:1;max-height:1200px}.test-cases[data-v-addfdfbf]{display:flex;flex-direction:column;gap:12px}.test-case[data-v-addfdfbf]{border:1px solid var(--c-border);border-radius:var(--radius-sm);padding:12px;background:var(--c-surface)}.test-case-header[data-v-addfdfbf]{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.test-case-name[data-v-addfdfbf]{font-weight:500;color:var(--c-text)}.test-status[data-v-addfdfbf]{padding:2px 8px;border-radius:12px;font-size:11px;font-weight:500}.test-status.pending[data-v-addfdfbf]{background:var(--c-text3);color:#fff}.test-status.running[data-v-addfdfbf]{background:var(--c-primary);color:#fff}.test-status.passed[data-v-addfdfbf]{background:var(--c-success);color:#fff}.test-status.failed[data-v-addfdfbf]{background:var(--c-danger);color:#fff}.test-error[data-v-addfdfbf]{margin-top:8px;padding:8px;background:var(--c-danger-bg);color:var(--c-danger);border-radius:var(--radius-sm);font-size:13px}.test-input[data-v-addfdfbf],.test-expected[data-v-addfdfbf],.test-actual[data-v-addfdfbf],.test-output[data-v-addfdfbf]{margin-top:8px}.test-input pre[data-v-addfdfbf],.test-expected pre[data-v-addfdfbf],.test-actual pre[data-v-addfdfbf]{background:var(--c-surface2);padding:8px;border-radius:var(--radius-sm);font-family:monospace;font-size:12px;overflow-x:auto}.test-output[data-v-addfdfbf]{background:var(--c-surface2);padding:8px;border-radius:var(--radius-sm)}.custom-result[data-v-addfdfbf]{border:1px solid var(--c-border);border-radius:var(--radius-sm);padding:12px;background:var(--c-surface)}.login-wrap[data-v-2ff46262]{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--c-bg)}.login-card[data-v-2ff46262]{width:380px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:14px;padding:36px 32px;box-shadow:var(--shadow-md)}.login-logo[data-v-2ff46262]{display:flex;align-items:center;gap:10px;font-weight:600;font-size:15px;margin-bottom:24px}.login-title[data-v-2ff46262]{font-size:20px;font-weight:600;margin-bottom:20px}.login-error[data-v-2ff46262]{background:var(--c-danger-bg);color:var(--c-danger);border-radius:var(--radius-sm);padding:8px 12px;font-size:13px;margin-bottom:12px}.login-hint[data-v-2ff46262]{margin-top:20px;padding:12px;background:var(--c-surface2);border-radius:var(--radius-sm);font-size:12px;color:var(--c-text3);line-height:1.8}.sidebar-header[data-v-d8fca0b4]{display:flex;align-items:center;gap:10px;padding:16px;border-bottom:1px solid var(--c-border)}.sidebar-user[data-v-d8fca0b4]{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--c-border)}.user-avatar[data-v-d8fca0b4]{width:32px;height:32px;border-radius:50%;background:var(--c-primary-bg);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px;flex-shrink:0}.sidebar-footer[data-v-d8fca0b4]{border-top:1px solid var(--c-border);padding:8px 0}.nav-section-label[data-v-d8fca0b4]{font-size:10px;font-weight:600;color:var(--c-text3);text-transform:uppercase;letter-spacing:.08em;padding:16px 16px 4px}.qp[data-v-d305c852]{display:grid;grid-template-columns:1.35fr 1fr;gap:12px}@media (max-width: 760px){.qp[data-v-d305c852]{grid-template-columns:1fr}}.qp-pane[data-v-d305c852]{display:flex;flex-direction:column;border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-surface);overflow:hidden;min-width:0}.qp-pane-head[data-v-d305c852]{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;border-bottom:1px solid var(--c-border);background:var(--c-surface2)}.qp-pane-title[data-v-d305c852]{font-size:12px;font-weight:500;color:var(--c-text2)}.qp-toolbar[data-v-d305c852]{padding:8px 10px;border-bottom:1px solid var(--c-border);display:flex;flex-direction:column;gap:6px}.qp-filters[data-v-d305c852]{display:flex;gap:6px;flex-wrap:wrap}.qp-filters .form-control[data-v-d305c852]{width:auto;flex:1 1 88px;min-width:0;padding:5px 8px;font-size:12px}.qp-list[data-v-d305c852]{height:340px;overflow-y:auto}.qp-row[data-v-d305c852]{display:flex;align-items:center;gap:8px;padding:7px 10px;border-bottom:1px solid var(--c-border);font-size:12px;cursor:pointer;transition:background .12s;min-width:0}.qp-row[data-v-d305c852]:last-child{border-bottom:none}.qp-row[data-v-d305c852]:hover{background:var(--c-surface2)}.qp-row.picked[data-v-d305c852]{background:var(--c-primary-bg)}.qp-row input[type=checkbox][data-v-d305c852]{margin:0;cursor:pointer;accent-color:var(--c-primary);flex-shrink:0}.qp-id[data-v-d305c852]{color:var(--c-text3);flex-shrink:0;width:38px}.qp-ord[data-v-d305c852]{color:var(--c-text3);flex-shrink:0;width:20px;text-align:right}.qp-text[data-v-d305c852]{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.qp-score[data-v-d305c852]{color:var(--c-text3);flex-shrink:0;width:38px;text-align:right}.qp-row .badge[data-v-d305c852],.qp-row .diff-dots[data-v-d305c852]{flex-shrink:0}.qp-actions[data-v-d305c852]{display:flex;gap:4px;flex-shrink:0}.qp-icon-btn[data-v-d305c852]{border:1px solid var(--c-border-med);background:var(--c-surface);border-radius:var(--radius-sm);width:22px;height:22px;line-height:1;cursor:pointer;color:var(--c-text2);font-size:11px;padding:0}.qp-icon-btn[data-v-d305c852]:hover:not(:disabled){background:var(--c-surface2)}.qp-icon-btn[data-v-d305c852]:disabled{opacity:.35;cursor:not-allowed}.qp-icon-btn.danger[data-v-d305c852]{color:var(--c-danger)}.qp-pane-foot[data-v-d305c852],.qp-summary[data-v-d305c852]{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:7px 12px;border-top:1px solid var(--c-border);background:var(--c-surface2);font-size:12px;color:var(--c-text2)}.qp-pane-foot .text-sm[data-v-d305c852]{min-width:0;overflow:hidden;text-overflow:ellipsis}.qp-pager[data-v-d305c852]{display:flex;align-items:center;gap:8px;flex-shrink:0}.qp-summary[data-v-d305c852]{justify-content:flex-end;font-weight:500}.qp-empty[data-v-d305c852]{text-align:center;padding:40px 12px;color:var(--c-text3);font-size:12px}.stats-row[data-v-36102cd2]{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.stat-card[data-v-36102cd2]{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:16px}.stat-num[data-v-36102cd2]{font-size:28px;font-weight:600}.stat-label[data-v-36102cd2]{font-size:12px;color:var(--c-text3);margin-top:2px}.assignment-grid[data-v-36102cd2]{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}.assignment-card[data-v-36102cd2]{cursor:pointer;transition:box-shadow .15s,transform .15s}.assignment-card[data-v-36102cd2]:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.card-actions[data-v-36102cd2]{display:flex;flex-wrap:wrap;gap:8px}.modal-mask[data-v-36102cd2]{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;display:flex;align-items:center;justify-content:center;z-index:100;padding:16px}.modal-box[data-v-36102cd2]{width:880px;max-width:100%;max-height:90vh;overflow-y:auto}.form-error[data-v-36102cd2]{color:var(--c-danger);background:var(--c-danger-bg);border-radius:var(--radius-sm);padding:8px 10px;font-size:12px;margin-bottom:8px}.stats-grid[data-v-cb509b92]{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.stat-card[data-v-cb509b92]{padding:14px 16px}.stat-num[data-v-cb509b92]{font-size:26px;font-weight:600}.stat-label[data-v-cb509b92]{font-size:12px;color:var(--c-text3);margin-top:2px}.formula-input-wrap[data-v-cf8dd400]{display:flex;flex-direction:column;gap:6px}.fi-label[data-v-cf8dd400]{font-size:13px;font-weight:500;color:var(--color-gray-600);-webkit-user-select:none;user-select:none}.fi-field[data-v-cf8dd400]{position:relative;transition:box-shadow .15s;border-radius:var(--radius-md)}.fi-field.is-active[data-v-cf8dd400]{box-shadow:0 0 0 2px var(--color-primary-mid)}.fi-input[data-v-cf8dd400]{width:100%;padding:8px 38px 8px 12px;font-size:14px;font-family:var(--font-mono);color:var(--color-gray-900);background:#fff;border:1px solid var(--color-gray-200);border-radius:var(--radius-md);outline:none;transition:border-color .15s;resize:vertical}.fi-input[data-v-cf8dd400]:focus{border-color:var(--color-primary)}.fi-textarea[data-v-cf8dd400]{line-height:1.7;min-height:80px}.fi-toggle-btn[data-v-cf8dd400]{position:absolute;top:50%;right:6px;transform:translateY(-50%);width:26px;height:26px;display:flex;align-items:center;justify-content:center;border:1px solid var(--color-gray-200);border-radius:var(--radius-sm);background:#fff;color:var(--color-gray-400);cursor:pointer;transition:background .15s,color .15s,border-color .15s;padding:0}.fi-toggle-btn svg[data-v-cf8dd400]{width:14px;height:14px}.fi-toggle-btn[data-v-cf8dd400]:hover{background:var(--color-primary-light);border-color:var(--color-primary-mid);color:var(--color-primary)}.fi-toggle-btn.is-on[data-v-cf8dd400]{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.fi-toggle-btn.is-on[data-v-cf8dd400]:hover{background:var(--color-primary);color:#fff}.fi-textarea~.fi-toggle-btn[data-v-cf8dd400]{top:10px;transform:none;background-color:#7cfc00}.preview-box[data-v-53a7ea92]{border:1px solid var(--c-border);border-radius:var(--radius-sm);padding:10px 12px;min-height:80px;font-size:14px;line-height:1.9;background:var(--c-surface2)}.latex-mono[data-v-53a7ea92]{font-family:JetBrains Mono,monospace;font-size:12px}.img-drop-zone[data-v-53a7ea92]{border:1.5px dashed var(--c-border-med);border-radius:var(--radius);padding:10px;cursor:pointer;transition:border-color .15s,background .15s;outline:none;min-height:80px;display:flex;align-items:center;justify-content:center}.img-drop-zone[data-v-53a7ea92]:hover,.img-drop-zone[data-v-53a7ea92]:focus{border-color:var(--c-primary);background:var(--c-primary-bg)}.img-drop-zone.dragging[data-v-53a7ea92]{border-color:var(--c-primary);background:var(--c-primary-bg);border-style:solid}.drop-hint[data-v-53a7ea92]{display:flex;flex-direction:column;align-items:center;padding:12px 0}.img-grid[data-v-53a7ea92]{display:flex;flex-wrap:wrap;gap:10px;width:100%;padding:4px;align-items:flex-start}.img-thumb-wrap[data-v-53a7ea92]{position:relative;width:100px;flex-shrink:0}.img-thumb[data-v-53a7ea92]{width:100px;height:80px;object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--c-border);display:block;cursor:zoom-in;transition:opacity .12s}.img-thumb-wrap:hover .img-thumb[data-v-53a7ea92]{opacity:.75}.img-thumb-overlay[data-v-53a7ea92]{position:absolute;top:4px;right:4px;display:flex;gap:3px;opacity:0;transition:opacity .12s}.img-thumb-wrap:hover .img-thumb-overlay[data-v-53a7ea92]{opacity:1}.img-action-btn[data-v-53a7ea92]{width:22px;height:22px;border-radius:4px;background:#0000008c;color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .1s}.img-action-btn[data-v-53a7ea92]:hover{background:#000c}.img-action-btn.danger[data-v-53a7ea92]:hover{background:var(--c-danger)}.img-action-btn[data-v-53a7ea92]:disabled{opacity:.35;cursor:not-allowed}.img-label[data-v-53a7ea92]{font-size:11px;color:var(--c-text3);text-align:center;margin-top:3px}.img-add-btn[data-v-53a7ea92]{width:100px;height:80px;border:1.5px dashed var(--c-border-med);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--c-text3);transition:border-color .12s,color .12s;flex-shrink:0}.img-add-btn[data-v-53a7ea92]:hover{border-color:var(--c-primary);color:var(--c-primary)}.upload-progress[data-v-53a7ea92]{display:flex;align-items:center;gap:6px;margin-top:6px}.img-error[data-v-53a7ea92]{margin-top:6px;font-size:12px;color:var(--c-danger)}.lightbox-mask[data-v-53a7ea92]{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d1;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:200}.lightbox-box[data-v-53a7ea92]{display:flex;flex-direction:column;align-items:center;gap:12px;max-width:90vw}.lightbox-img[data-v-53a7ea92]{max-width:80vw;max-height:76vh;border-radius:var(--radius);object-fit:contain}.lightbox-nav[data-v-53a7ea92]{display:flex;align-items:center;gap:10px}.fw-wrap[data-v-81a6f5a6]{position:fixed;z-index:9999;width:480px;max-width:calc(100vw - 24px);background:#fff;border:1px solid var(--color-gray-200);border-radius:var(--radius-lg);box-shadow:0 8px 32px #0000001f,0 2px 8px #0000000f;overflow:hidden}.fw-pop-enter-active[data-v-81a6f5a6]{transition:opacity .18s ease,transform .22s cubic-bezier(.34,1.36,.64,1)}.fw-pop-leave-active[data-v-81a6f5a6]{transition:opacity .15s ease,transform .15s ease}.fw-pop-enter-from[data-v-81a6f5a6],.fw-pop-leave-to[data-v-81a6f5a6]{opacity:0;transform:translateY(-6px) scale(.97);transform-origin:top right}.fw-header[data-v-81a6f5a6]{display:flex;align-items:center;gap:8px;padding:9px 12px;background:var(--color-gray-50);border-bottom:1px solid var(--color-gray-200);flex-wrap:nowrap}.fw-icon[data-v-81a6f5a6]{width:15px;height:15px;color:var(--color-gray-600);flex-shrink:0}.fw-title[data-v-81a6f5a6]{font-size:12px;font-weight:500;color:var(--color-gray-600);white-space:nowrap}.fw-badge[data-v-81a6f5a6]{font-size:11px;font-weight:500;padding:2px 8px;border-radius:999px;white-space:nowrap}.fw-badge--active[data-v-81a6f5a6]{background:var(--color-primary-light);color:var(--color-primary)}.fw-badge--idle[data-v-81a6f5a6]{background:var(--color-gray-100);color:var(--color-gray-400)}.fw-cursor-info[data-v-81a6f5a6]{font-size:11px;color:var(--color-gray-400);font-family:var(--font-mono);white-space:nowrap}.fw-close-btn[data-v-81a6f5a6]{margin-left:auto;flex-shrink:0;width:22px;height:22px;display:flex;align-items:center;justify-content:center;border:1px solid var(--color-gray-200);border-radius:var(--radius-sm);background:transparent;color:var(--color-gray-400);cursor:pointer;padding:0;transition:background .1s,color .1s}.fw-close-btn svg[data-v-81a6f5a6]{width:11px;height:11px}.fw-close-btn[data-v-81a6f5a6]:hover{background:var(--color-danger-light);border-color:#f09595;color:var(--color-danger)}.fw-body[data-v-81a6f5a6]{padding:10px 12px;display:flex;flex-direction:column;gap:10px;max-height:52vh;overflow-y:auto}.fw-group-name[data-v-81a6f5a6]{font-size:10px;font-weight:500;color:var(--color-gray-400);text-transform:uppercase;letter-spacing:.06em;margin-bottom:5px}.fw-btn-row[data-v-81a6f5a6]{display:flex;flex-wrap:wrap;gap:4px}.fw-btn[data-v-81a6f5a6]{height:30px;min-width:34px;padding:0 7px;font-size:14px;font-family:var(--font-mono);color:var(--color-gray-900);background:#fff;border:1px solid var(--color-gray-200);border-radius:var(--radius-sm);cursor:pointer;transition:background .1s,border-color .1s,transform .07s;-webkit-user-select:none;user-select:none;line-height:1}.fw-btn[data-v-81a6f5a6]:hover:not(:disabled){background:var(--color-primary-light);border-color:var(--color-primary-mid);color:var(--color-primary)}.fw-btn[data-v-81a6f5a6]:active:not(:disabled){transform:scale(.91)}.fw-btn[data-v-81a6f5a6]:disabled{opacity:.3;cursor:not-allowed}.header-right[data-v-b3f9ac5e]{display:flex;align-items:center;gap:14px}.progress-summary[data-v-b3f9ac5e]{text-align:center}.prog-num[data-v-b3f9ac5e]{font-size:24px;font-weight:600;color:var(--c-primary)}.q-wrapper[data-v-b3f9ac5e]{overflow:hidden}.q-header[data-v-b3f9ac5e]{display:flex;align-items:center;gap:8px;padding:10px 16px;background:var(--c-surface2);border-bottom:1px solid var(--c-border)}.q-num[data-v-b3f9ac5e]{width:22px;height:22px;border-radius:50%;background:var(--c-primary);color:#fff;font-size:11px;font-weight:600;display:flex;align-items:center;justify-content:center;flex-shrink:0}.q-body[data-v-b3f9ac5e]{padding:16px}.q-stem[data-v-b3f9ac5e]{font-size:14px;line-height:1.9;margin-bottom:14px}.choice-row[data-v-b3f9ac5e]{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;font-size:13px;margin-bottom:5px;transition:all .12s}.choice-row[data-v-b3f9ac5e]:hover{background:var(--c-surface2)}.choice-row.selected[data-v-b3f9ac5e]{background:var(--c-primary-bg);border-color:var(--c-primary)}.choice-row.correct[data-v-b3f9ac5e]{background:var(--c-success-bg);border-color:var(--c-success)}.choice-row.wrong[data-v-b3f9ac5e]{background:var(--c-danger-bg);border-color:var(--c-danger)}.choice-letter[data-v-b3f9ac5e]{width:22px;height:22px;border-radius:50%;border:1px solid var(--c-border-med);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:500;flex-shrink:0}.selected .choice-letter[data-v-b3f9ac5e]{background:var(--c-primary);color:#fff;border-color:transparent}.result-box[data-v-b3f9ac5e]{background:var(--c-surface2);border-radius:var(--radius-sm);padding:10px 12px;margin-bottom:12px;border-left:3px solid var(--c-primary)}.result-box.auto[data-v-b3f9ac5e]{border-left-color:var(--c-success)}.feedback-text[data-v-b3f9ac5e]{font-size:13px;color:var(--c-text2);margin-top:4px}.submitted-answer[data-v-b3f9ac5e]{background:var(--c-surface2);border-radius:var(--radius-sm);padding:12px;margin-top:8px}.pending-badge[data-v-b3f9ac5e]{margin-top:8px;font-size:12px;color:var(--c-warning)}.done-banner[data-v-b3f9ac5e]{background:var(--c-success-bg);border-color:var(--c-success);text-align:center;padding:24px;margin-top:8px}.status-badge[data-v-b3f9ac5e]{display:inline-block;margin-left:10px;padding:2px 8px;border-radius:999px;background:var(--c-primary-bg);color:var(--c-primary);font-size:12px}.btn-back[data-v-b3f9ac5e]{margin-right:8px;vertical-align:middle}.btn-star[data-v-b3f9ac5e]{display:inline-flex;align-items:center;justify-content:center;width:32px;height:27px;padding:0;margin-left:2px;background:var(--c-warning-bg);border:1.5px solid var(--c-warning);border-radius:999px;cursor:pointer;line-height:1;color:var(--c-warning);transition:background .14s,border-color .14s,color .14s,transform .1s,box-shadow .14s}.btn-star .star-icon[data-v-b3f9ac5e]{font-size:16px;transform:translateY(-.5px)}.btn-star[data-v-b3f9ac5e]:hover:not(:disabled){background:var(--c-warning);color:#fff;transform:scale(1.1);box-shadow:0 2px 6px #d9770666}.btn-star[data-v-b3f9ac5e]:active:not(:disabled){transform:scale(.94)}.btn-star[data-v-b3f9ac5e]:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}.btn-star.on[data-v-b3f9ac5e]{background:var(--c-warning);border-color:var(--c-warning);color:#fff;box-shadow:0 1px 3px #d9770659}.btn-star.on[data-v-b3f9ac5e]:hover:not(:disabled){background:var(--c-warning);border-color:var(--c-warning);color:#fff}.btn-star[data-v-b3f9ac5e]:disabled{cursor:default;opacity:.55}.q-images[data-v-b3f9ac5e]{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.q-image[data-v-b3f9ac5e]{max-width:240px;max-height:180px;object-fit:contain;border:1px solid var(--c-border);border-radius:var(--radius-sm);cursor:zoom-in;transition:opacity .12s}.q-image[data-v-b3f9ac5e]:hover{opacity:.85}.q-lightbox-mask[data-v-b3f9ac5e]{position:fixed;top:0;right:0;bottom:0;left:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:200}.paper-root[data-v-7aa4d46d]{background:var(--c-surface2, #f3f4f6);min-height:100vh}.toolbar[data-v-7aa4d46d]{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:16px;padding:10px 16px;background:var(--c-surface, #fff);border-bottom:1px solid var(--c-border, #e5e7eb)}.toolbar-title[data-v-7aa4d46d]{font-weight:600;font-size:14px;margin-right:auto}.toolbar-opts[data-v-7aa4d46d]{display:flex;gap:14px;font-size:13px;color:var(--c-text2, #4b5563)}.toolbar-opts label[data-v-7aa4d46d]{display:flex;align-items:center;gap:4px;cursor:pointer}.loading[data-v-7aa4d46d]{text-align:center;padding:80px;color:var(--c-text3, #9ca3af)}.loading .spinner[data-v-7aa4d46d]{margin:0 auto}.paper[data-v-7aa4d46d]{background:#fff;color:#111;max-width:800px;margin:24px auto;padding:32px 40px;box-shadow:0 1px 6px #0000001f;font-size:14px;line-height:1.9}.paper-title[data-v-7aa4d46d]{font-size:22px;font-weight:700;text-align:center;margin-bottom:8px}.paper-meta[data-v-7aa4d46d]{display:flex;justify-content:center;flex-wrap:wrap;gap:16px;font-size:13px;color:#444;margin-bottom:6px}.paper-desc[data-v-7aa4d46d]{font-size:13px;color:#555;text-align:center;margin-bottom:10px}.paper-fillin[data-v-7aa4d46d]{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;margin:10px 0}.paper-rule[data-v-7aa4d46d]{border:none;border-top:1.5px solid #333;margin:10px 0 20px}.q-block[data-v-7aa4d46d]{margin-bottom:20px}.q-line[data-v-7aa4d46d]{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px;font-weight:600;margin-bottom:4px}.q-no[data-v-7aa4d46d]{font-weight:700}.q-type[data-v-7aa4d46d]{font-size:12px;color:#666;font-weight:500}.q-score[data-v-7aa4d46d]{font-size:12px;color:#888;font-weight:400}.q-tag[data-v-7aa4d46d]{font-size:11px;color:#555;background:#f0f0f0;border-radius:4px;padding:0 6px;font-weight:400}.q-stem[data-v-7aa4d46d]{margin:2px 0 6px}.q-images[data-v-7aa4d46d]{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0}.q-images img[data-v-7aa4d46d]{max-width:320px;max-height:220px;object-fit:contain;border:1px solid #ddd}.q-options[data-v-7aa4d46d]{margin:4px 0 0 8px}.q-option[data-v-7aa4d46d]{display:flex;gap:8px;margin:3px 0}.q-option-label[data-v-7aa4d46d]{font-weight:600}.q-answer-space[data-v-7aa4d46d]{border-bottom:none}.space-sm[data-v-7aa4d46d]{height:40px}.space-md[data-v-7aa4d46d]{height:80px}.space-lg[data-v-7aa4d46d]{height:150px}.space-none[data-v-7aa4d46d]{height:0}.answers[data-v-7aa4d46d]{margin-top:28px}.answers-title[data-v-7aa4d46d]{font-size:18px;font-weight:700;text-align:center;margin-bottom:16px;padding-top:8px;border-top:1.5px solid #333}.a-block[data-v-7aa4d46d]{margin-bottom:14px}.a-head[data-v-7aa4d46d]{display:flex;gap:8px;font-weight:600}.a-key[data-v-7aa4d46d]{font-weight:500}.a-steps[data-v-7aa4d46d]{margin:4px 0 0 16px}.a-step[data-v-7aa4d46d]{margin:4px 0}.a-step-order[data-v-7aa4d46d]{font-weight:600;font-size:13px}.a-step-score[data-v-7aa4d46d]{font-size:12px;color:#888}.a-step-err[data-v-7aa4d46d]{font-size:12px;color:#b45309;margin-top:2px}@media print{.no-print[data-v-7aa4d46d]{display:none!important}.paper-root[data-v-7aa4d46d]{background:#fff;min-height:0}.paper[data-v-7aa4d46d]{max-width:none;margin:0;padding:0;box-shadow:none;font-size:12pt}.q-block[data-v-7aa4d46d]{break-inside:avoid;page-break-inside:avoid}.answers[data-v-7aa4d46d]{break-before:page;page-break-before:always}.answers-title[data-v-7aa4d46d]{border-top:none}.q-images img[data-v-7aa4d46d]{max-width:60mm;max-height:45mm}}@page{margin:18mm}.modal-mask[data-v-835f8b23]{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;display:flex;align-items:center;justify-content:center;z-index:100}.modal-box[data-v-835f8b23]{max-height:90vh;overflow-y:auto}.share-chips[data-v-835f8b23]{display:flex;flex-wrap:wrap;gap:4px;padding:4px 0}.share-chip[data-v-835f8b23]{display:inline-flex;align-items:center;gap:4px}.chip-x[data-v-835f8b23]{border:none;background:none;cursor:pointer;color:inherit;padding:0;font-size:10px;line-height:1}.share-list[data-v-835f8b23]{max-height:180px;overflow-y:auto;margin-top:6px;border:1px solid var(--c-border);border-radius:var(--radius-sm)}.share-item[data-v-835f8b23]{display:flex;justify-content:space-between;align-items:center;padding:6px 8px;font-size:13px;cursor:pointer;border-bottom:1px solid var(--c-border)}.share-item[data-v-835f8b23]:last-child{border-bottom:none}.share-item[data-v-835f8b23]:hover{background:var(--c-surface2)}.share-item.picked[data-v-835f8b23]{background:var(--c-primary-bg)}.editor-section-title[data-v-22551de0]{font-size:13px;font-weight:500;color:var(--c-text2);margin-bottom:12px}.preview-box[data-v-22551de0]{border:1px solid var(--c-border);border-radius:var(--radius-sm);padding:10px 12px;min-height:80px;font-size:14px;line-height:1.9;background:var(--c-surface2)}.latex-mono[data-v-22551de0]{font-family:JetBrains Mono,monospace;font-size:12px}.opt-letter[data-v-22551de0]{width:22px;height:22px;border-radius:50%;background:var(--c-surface2);border:1px solid var(--c-border-med);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:500;flex-shrink:0}.step-row[data-v-22551de0]{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px}.step-num-badge[data-v-22551de0]{width:22px;height:22px;border-radius:50%;background:var(--c-primary);color:#fff;font-size:11px;font-weight:500;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:6px}.save-msg[data-v-22551de0]{margin-top:8px;padding:8px 12px;border-radius:var(--radius-sm);font-size:13px}.save-msg.ok[data-v-22551de0]{background:var(--c-success-bg);color:var(--c-success)}.save-msg.err[data-v-22551de0]{background:var(--c-danger-bg);color:var(--c-danger)}.widget-area[data-v-22551de0]{position:sticky;bottom:16px;z-index:10}.stat-mini[data-v-a4cdd8be]{text-align:center;min-width:60px}.stat-mini-num[data-v-a4cdd8be]{font-size:24px;font-weight:600}.answer-item[data-v-a4cdd8be]{cursor:pointer;transition:all .12s;border-left:3px solid transparent}.answer-item[data-v-a4cdd8be]:hover{border-left-color:var(--c-primary)}.answer-item.selected[data-v-a4cdd8be]{border-left-color:var(--c-primary);background:var(--c-primary-bg)}.grading-stem[data-v-a4cdd8be]{font-size:13px;line-height:1.8;padding:10px;background:var(--c-surface2);border-radius:var(--radius-sm)}.solution-box[data-v-a4cdd8be]{border:1px solid var(--c-border);border-radius:var(--radius-sm);overflow:hidden}.solution-step[data-v-a4cdd8be]{padding:10px 12px;border-bottom:1px solid var(--c-border)}.solution-step[data-v-a4cdd8be]:last-child{border-bottom:none}.step-badge[data-v-a4cdd8be]{font-size:11px;font-weight:500;color:var(--c-text2)}.step-content[data-v-a4cdd8be]{font-size:13px;line-height:1.7;margin:4px 0}.step-error[data-v-a4cdd8be]{font-size:11px;color:var(--c-warning);margin-top:2px}.student-answer-box[data-v-a4cdd8be]{background:var(--c-surface2);border-radius:var(--radius-sm);padding:10px 12px;font-size:13px;line-height:1.8;min-height:60px;white-space:pre-wrap}.score-quick-btns[data-v-a4cdd8be]{display:flex;gap:4px}.m-row[data-v-cdcc3d4f]{overflow:hidden;padding:0}.q-header[data-v-cdcc3d4f]{display:flex;align-items:center;gap:8px;padding:10px 16px;background:var(--c-surface2);border-bottom:1px solid var(--c-border);flex-wrap:wrap}.q-body[data-v-cdcc3d4f]{padding:14px 16px}.q-stem[data-v-cdcc3d4f]{font-size:14px;line-height:1.9;max-height:5.7em;overflow:hidden}.modal-mask[data-v-cdcc3d4f]{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;display:flex;align-items:center;justify-content:center;z-index:100}.modal-box-sm[data-v-cdcc3d4f]{width:380px;max-width:100%}.btn-back[data-v-32b08980]{margin-bottom:14px}.sect[data-v-32b08980]{overflow:hidden;padding:0}.sect-title[data-v-32b08980]{padding:10px 16px;background:var(--c-surface2);border-bottom:1px solid var(--c-border);font-size:13px;font-weight:600}.q-header[data-v-32b08980]{display:flex;align-items:center;gap:8px;padding:10px 16px;background:var(--c-surface2);border-bottom:1px solid var(--c-border);flex-wrap:wrap}.q-body[data-v-32b08980]{padding:16px}.q-stem[data-v-32b08980]{font-size:14px;line-height:1.9;margin-bottom:14px}.choice-row[data-v-32b08980]{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--radius-sm);border:1px solid transparent;font-size:13px;margin-bottom:5px}.choice-row.selected[data-v-32b08980]{background:var(--c-primary-bg);border-color:var(--c-primary)}.choice-row.correct[data-v-32b08980]{background:var(--c-success-bg);border-color:var(--c-success)}.choice-row.wrong[data-v-32b08980]{background:var(--c-danger-bg);border-color:var(--c-danger)}.choice-letter[data-v-32b08980]{width:22px;height:22px;border-radius:50%;border:1px solid var(--c-border);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:500;flex-shrink:0}.result-box[data-v-32b08980]{background:var(--c-surface2);border-radius:var(--radius-sm);padding:10px 12px;margin-bottom:12px;border-left:3px solid var(--c-primary)}.feedback-text[data-v-32b08980]{font-size:13px;color:var(--c-text2);margin-top:4px}.answer-body[data-v-32b08980]{font-size:14px;line-height:1.9}.answer-key[data-v-32b08980]{font-size:14px;line-height:1.9;background:var(--c-success-bg);border-radius:var(--radius-sm);padding:10px 12px}.solution-step[data-v-32b08980]{border-left:3px solid var(--c-border);padding:8px 0 8px 12px;margin-bottom:10px;font-size:14px;line-height:1.9}.common-errors[data-v-32b08980]{color:var(--c-warning);margin-top:6px}.mastery-opt[data-v-32b08980]{display:flex;align-items:center;gap:6px;cursor:pointer}.form-error[data-v-32b08980]{color:var(--c-danger);font-size:13px}.q-images[data-v-32b08980]{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.q-image[data-v-32b08980]{max-width:240px;max-height:180px;object-fit:contain;border:1px solid var(--c-border);border-radius:var(--radius-sm);cursor:zoom-in}.q-lightbox-mask[data-v-32b08980]{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b8;display:flex;align-items:center;justify-content:center;z-index:200}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.39"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--c-bg: #f7f6f3;--c-surface: #ffffff;--c-surface2: #f0efe9;--c-border: rgba(0,0,0,.08);--c-border-med: rgba(0,0,0,.14);--c-text: #1a1a1a;--c-text2: #555550;--c-text3: #888880;--c-primary: #2563eb;--c-primary-bg: #eff6ff;--c-success: #16a34a;--c-success-bg: #f0fdf4;--c-warning: #d97706;--c-warning-bg: #fffbeb;--c-danger: #dc2626;--c-danger-bg: #fef2f2;--c-purple: #7c3aed;--c-purple-bg: #f5f3ff;--radius: 10px;--radius-sm: 6px;--shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 12px rgba(0,0,0,.08)}html,body{height:100%;font-family:Noto Sans SC,sans-serif;background:var(--c-bg);color:var(--c-text);font-size:14px;line-height:1.6}#app{height:100%}.layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:220px;background:var(--c-surface);border-right:1px solid var(--c-border);display:flex;flex-direction:column;flex-shrink:0}.main{flex:1;overflow-y:auto;background:var(--c-bg)}.page{padding:28px 32px;max-width:1100px}.card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.card-sm{padding:14px 16px}.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius-sm);border:1px solid var(--c-border-med);background:var(--c-surface);color:var(--c-text);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;white-space:nowrap}.btn:hover{background:var(--c-surface2)}.btn:active{transform:scale(.98)}.btn-primary{background:var(--c-primary);color:#fff;border-color:transparent}.btn-primary:hover{background:#1d4ed8}.btn-sm{padding:4px 10px;font-size:12px}.btn-danger{background:var(--c-danger-bg);color:var(--c-danger);border-color:transparent}.btn-success{background:var(--c-success-bg);color:var(--c-success);border-color:transparent}.form-group{margin-bottom:16px}.form-label{display:block;font-size:12px;font-weight:500;color:var(--c-text2);margin-bottom:5px}.form-control{width:100%;padding:8px 10px;border:1px solid var(--c-border-med);border-radius:var(--radius-sm);background:var(--c-surface);color:var(--c-text);font-size:13px;outline:none;transition:border-color .15s;font-family:inherit}.form-control:focus{border-color:var(--c-primary)}textarea.form-control{resize:vertical;min-height:80px;line-height:1.6}select.form-control{cursor:pointer}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:500}.badge-blue{background:var(--c-primary-bg);color:var(--c-primary)}.badge-green{background:var(--c-success-bg);color:var(--c-success)}.badge-amber{background:var(--c-warning-bg);color:var(--c-warning)}.badge-red{background:var(--c-danger-bg);color:var(--c-danger)}.badge-purple{background:var(--c-purple-bg);color:var(--c-purple)}.badge-gray{background:var(--c-surface2);color:var(--c-text2)}.table{width:100%;border-collapse:collapse;font-size:13px}.table th{text-align:left;padding:10px 12px;font-weight:500;color:var(--c-text2);border-bottom:1px solid var(--c-border);font-size:12px}.table td{padding:10px 12px;border-bottom:1px solid var(--c-border);vertical-align:middle}.table tr:last-child td{border-bottom:none}.table tbody tr:hover td{background:var(--c-surface2)}.divider{border:none;border-top:1px solid var(--c-border);margin:16px 0}.text-muted{color:var(--c-text3)}.text-sm{font-size:12px}.flex{display:flex;align-items:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.gap-2{gap:8px}.gap-3{gap:12px}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}.latex-block{font-family:KaTeX_Math,Times New Roman,serif;font-size:15px;line-height:1.8}.nav-item{display:flex;align-items:center;gap:10px;padding:9px 16px;color:var(--c-text2);font-size:13px;cursor:pointer;border-radius:0;transition:all .12s;text-decoration:none}.nav-item:hover{background:var(--c-surface2);color:var(--c-text)}.nav-item.active{background:var(--c-primary-bg);color:var(--c-primary);font-weight:500}.nav-icon{width:16px;height:16px;opacity:.7}.diff-dots{display:flex;gap:3px}.diff-dot{width:8px;height:8px;border-radius:50%;background:var(--c-border-med)}.diff-dot.on{background:var(--c-warning)}.status-submitted{color:var(--c-warning)}.status-auto_graded{color:var(--c-primary)}.status-reviewed{color:var(--c-success)}.spinner{width:20px;height:20px;border:2px solid var(--c-border);border-top-color:var(--c-primary);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.fade-enter-active,.fade-leave-active{transition:opacity .2s}.fade-enter-from,.fade-leave-to{opacity:0}@media print{body.printing-paper .navbar{display:none!important}body.printing-paper .app-container{background:#fff!important}body.printing-paper .main-content{padding:0!important;max-width:none!important;margin:0!important}}