.base-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.base-modal{background:var(--color-surface);border-radius:var(--radius-lg);width:min(92vw,560px);max-height:88vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);overflow:hidden}.base-modal.size-sm{width:min(92vw,420px)}.base-modal.size-md{width:min(92vw,560px)}.base-modal.size-lg{width:min(92vw,760px)}.base-modal.size-xl{width:min(94vw,960px)}.base-modal__header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 24px;border-bottom:1px solid var(--color-border)}.base-modal__title{font-size:1.0625rem;font-weight:600;color:var(--text-primary);margin:0}.base-modal__close{width:32px;height:32px;border:none;border-radius:8px;background:transparent;color:var(--text-secondary);font-size:1.5rem;line-height:1;cursor:pointer}.base-modal__close:hover{background:var(--gray-100);color:var(--text-primary)}.base-modal__body{padding:20px 24px;overflow-y:auto}.base-modal__footer{display:flex;justify-content:flex-end;gap:8px;padding:16px 24px;border-top:1px solid var(--color-border)}@media (max-width: 768px){.base-modal-overlay{padding:12px}.base-modal__header,.base-modal__body,.base-modal__footer{padding-left:16px;padding-right:16px}}.shared-problem-body[data-v-d3bfaa00]{display:flex;flex-direction:column;gap:12px}.shared-problem-body.readonly .option-item[data-v-d3bfaa00],.shared-problem-body.readonly .truefalse-btn[data-v-d3bfaa00],.shared-problem-body.readonly .fill-input[data-v-d3bfaa00],.shared-problem-body.readonly .oj-entry-btn[data-v-d3bfaa00]{cursor:default}.problem-content[data-v-d3bfaa00]{min-width:220px;font-size:.875rem;line-height:1.7;color:var(--text-secondary)}.problem-content[data-v-d3bfaa00] p{margin-bottom:8px}.problem-content[data-v-d3bfaa00] code:not(.md-code-block__content):not(pre code){background:var(--gray-100);padding:2px 6px;border-radius:4px;font-size:.8125rem}.problem-content[data-v-d3bfaa00] img{max-width:100%;border-radius:4px;margin:8px 0}.programming-inline-note[data-v-d3bfaa00],.programming-card-note[data-v-d3bfaa00]{font-size:.875rem;line-height:1.7;color:var(--text-secondary);background:#f8fafc;border:1px dashed var(--border-color);border-radius:10px;padding:10px 12px}.programming-inline-note[data-v-d3bfaa00]{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.oj-entry-btn[data-v-d3bfaa00]{flex-shrink:0;border:1px solid rgba(79,70,229,.2);background:#4f46e514;color:var(--primary);border-radius:999px;padding:6px 12px;font-size:.8125rem;font-weight:600}.options-list[data-v-d3bfaa00]{display:flex;flex-direction:column;gap:10px}.option-item[data-v-d3bfaa00]{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;border:1px solid var(--border-color);border-radius:12px;transition:all .2s ease;background:#fff}.option-item[data-v-d3bfaa00]:hover:not(.disabled){border-color:#4f46e566;box-shadow:0 10px 24px #4f46e514}.option-item.active[data-v-d3bfaa00]{border-color:#4f46e573;background:#4f46e50d}.option-item.disabled[data-v-d3bfaa00]{opacity:.96}.option-item input[data-v-d3bfaa00]{display:none}.option-radio[data-v-d3bfaa00],.option-checkbox[data-v-d3bfaa00]{width:18px;height:18px;border:2px solid #cbd5e1;margin-top:2px;flex-shrink:0;position:relative;background:#fff}.option-radio[data-v-d3bfaa00]{border-radius:999px}.option-checkbox[data-v-d3bfaa00]{border-radius:5px}.option-item.active .option-radio[data-v-d3bfaa00],.option-item.active .option-checkbox[data-v-d3bfaa00]{border-color:var(--primary);background:#4f46e514}.option-item.active .option-radio[data-v-d3bfaa00]:after{content:"";position:absolute;top:3px;right:3px;bottom:3px;left:3px;border-radius:999px;background:var(--primary)}.option-item.active .option-checkbox[data-v-d3bfaa00]:after{content:"";position:absolute;left:4px;top:0;width:5px;height:10px;border:solid var(--primary);border-width:0 2px 2px 0;transform:rotate(45deg)}.option-label-text[data-v-d3bfaa00]{font-weight:700;color:var(--text-primary)}.option-text[data-v-d3bfaa00]{color:var(--text-secondary);flex:1;min-width:0}.truefalse-list[data-v-d3bfaa00]{display:flex;gap:12px}.truefalse-btn[data-v-d3bfaa00]{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 14px;border-radius:12px;border:1px solid var(--border-color);background:#fff;font-size:.9rem;font-weight:600;transition:all .2s ease}.true-btn.active[data-v-d3bfaa00]{border-color:#10b98166;background:#10b98114;color:#047857}.false-btn.active[data-v-d3bfaa00]{border-color:#ef44445c;background:#ef444414;color:#b91c1c}.tf-icon[data-v-d3bfaa00]{font-size:.95rem}.fill-area[data-v-d3bfaa00]{display:flex;flex-wrap:wrap;gap:10px 8px;align-items:center}.fill-part[data-v-d3bfaa00]{display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap}.fill-text[data-v-d3bfaa00]{color:var(--text-secondary)}.fill-input[data-v-d3bfaa00]{min-width:140px;padding:10px 12px;border-radius:10px;border:1px solid var(--border-color);background:#fff;font-size:.875rem;outline:none}.fill-input[data-v-d3bfaa00]:focus{border-color:#4f46e573;box-shadow:0 0 0 3px #4f46e514}@media (max-width: 768px){.programming-inline-note[data-v-d3bfaa00]{flex-direction:column;align-items:flex-start}.truefalse-list[data-v-d3bfaa00]{flex-direction:column}}.problem-preview-card[data-v-69b1a101]{background:#fff;border-radius:8px;padding:12px 16px;box-shadow:var(--shadow);border:2px solid transparent}.problem-preview-card.compact[data-v-69b1a101]{padding:12px 14px}.problem-preview-header[data-v-69b1a101]{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:10px}.problem-preview-title-row[data-v-69b1a101]{display:flex;align-items:flex-start;gap:8px;min-width:0;flex:1}.problem-preview-number[data-v-69b1a101]{font-weight:700;color:var(--primary);line-height:1.6;flex-shrink:0}.problem-preview-title[data-v-69b1a101]{font-size:1rem;font-weight:700;color:var(--text-primary);line-height:1.6;margin:0}.problem-preview-meta[data-v-69b1a101]{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.problem-preview-difficulty[data-v-69b1a101]{color:var(--warning);font-size:.8125rem;letter-spacing:1px}.problem-preview-score[data-v-69b1a101]{font-size:.8125rem;color:var(--primary);font-weight:600}.problem-preview-body[data-v-69b1a101]{display:flex;flex-direction:column;gap:12px}.programming-samples[data-v-69b1a101]{display:grid;gap:8px;margin-top:12px}.programming-sample-row[data-v-69b1a101]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.programming-sample-row>div[data-v-69b1a101]{min-width:0;padding:8px;border:1px solid var(--border-color);border-radius:8px;background:var(--gray-50)}.sample-label[data-v-69b1a101]{display:block;margin-bottom:4px;color:var(--text-secondary);font-size:12px;font-weight:600}.programming-sample-row pre[data-v-69b1a101]{margin:0;max-height:120px;overflow:auto;white-space:pre-wrap;font:13px/1.45 var(--font-mono);color:var(--text-primary)}@media (max-width: 640px){.programming-sample-row[data-v-69b1a101]{grid-template-columns:1fr}}.programming-preview-content[data-v-69b1a101]{min-width:220px;font-size:.875rem;line-height:1.7;color:var(--text-secondary)}.programming-preview-content[data-v-69b1a101] p{margin-bottom:8px}.programming-preview-content[data-v-69b1a101] img{max-width:100%;border-radius:4px;margin:8px 0}.programming-entry-row[data-v-69b1a101]{display:flex;align-items:center}.oj-entry-btn[data-v-69b1a101]{min-height:34px;padding:0 16px;border:1px solid rgba(29,78,216,.16);border-radius:999px;background:linear-gradient(180deg,#eff6ff,#dbeafe);color:#1d4ed8;font-size:.875rem;font-weight:700;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;box-shadow:0 8px 18px #2563eb1f}.oj-entry-btn[data-v-69b1a101]:hover{transform:translateY(-1px);box-shadow:0 10px 22px #2563eb29}.problem-preview-hint[data-v-69b1a101]{padding:12px 14px;border-radius:12px;background:#eff6ff;color:var(--info)}.problem-preview-hint-label[data-v-69b1a101]{font-size:.75rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;margin-bottom:6px}.problem-preview-hint[data-v-69b1a101] p:last-child{margin-bottom:0}@media (max-width: 768px){.problem-preview-card[data-v-69b1a101]{padding:12px}.problem-preview-header[data-v-69b1a101]{flex-direction:column}}.source-problem-drawer[data-v-f97f21d0]{position:fixed;left:var(--source-panel-left, 0px);top:80px;bottom:80px;width:var(--source-panel-width);max-width:min(86vw,720px);background:#fffffff5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-right:1px solid rgba(148,163,184,.24);box-shadow:20px 0 48px #0f172a1a;transform:translate(calc(-1 * var(--source-panel-width)));transition:transform .24s ease;z-index:60;display:flex;flex-direction:column}.source-problem-drawer.open[data-v-f97f21d0]{transform:translate(0)}.source-problem-drawer__handle[data-v-f97f21d0]{position:absolute;top:0;right:0;width:10px;height:100%;cursor:col-resize}.source-problem-drawer__handle.active[data-v-f97f21d0],.source-problem-drawer__handle[data-v-f97f21d0]:hover{background:#3b82f61f}.source-problem-drawer__filters[data-v-f97f21d0]{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding:10px 20px 12px;border-bottom:1px solid rgba(148,163,184,.16)}.source-problem-drawer__select[data-v-f97f21d0],.source-problem-drawer__input[data-v-f97f21d0]{min-height:38px;border:1px solid var(--border-color);border-radius:12px;padding:0 12px;background:var(--bg-white);color:var(--text-primary)}.source-problem-drawer__body[data-v-f97f21d0]{flex:1;overflow-y:auto;padding:12px 20px;display:flex;flex-direction:column;gap:10px}.source-problem-drawer__empty[data-v-f97f21d0]{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-height:220px;border:1px dashed rgba(148,163,184,.24);border-radius:16px;color:var(--text-secondary);text-align:center;padding:20px}.source-problem-drawer__empty--error[data-v-f97f21d0]{color:#b91c1c}.source-problem-drawer__empty-title[data-v-f97f21d0]{font-weight:700;color:var(--text-primary)}.source-problem-drawer__empty--error .source-problem-drawer__empty-title[data-v-f97f21d0]{color:#991b1b}.source-problem-drawer__empty-desc[data-v-f97f21d0]{font-size:.875rem;line-height:1.6}.source-problem-drawer__item[data-v-f97f21d0]{display:grid;grid-template-columns:48px minmax(0,1fr) 64px;gap:10px;align-items:center;border:1px solid rgba(148,163,184,.18);border-radius:14px;background:#ffffffeb;padding:10px 12px;cursor:pointer;text-align:left}.source-problem-drawer__item.active[data-v-f97f21d0]{border-color:#3b82f673;box-shadow:0 0 0 3px #3b82f61f}.source-problem-drawer__type[data-v-f97f21d0],.source-problem-drawer__difficulty[data-v-f97f21d0]{font-size:.8125rem;color:var(--text-secondary)}.source-problem-drawer__item-title[data-v-f97f21d0]{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600;color:var(--text-primary)}.source-problem-drawer__page-text[data-v-f97f21d0]{font-size:.8125rem;color:var(--text-secondary)}.source-problem-drawer__page-actions[data-v-f97f21d0]{display:flex;gap:8px}.source-problem-drawer__footer[data-v-f97f21d0]{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 20px;border-top:1px solid rgba(148,163,184,.16)}.source-problem-drawer__back[data-v-f97f21d0]{margin-left:auto}@media (max-width: 768px){.source-problem-drawer[data-v-f97f21d0]{max-width:100vw;width:100vw;transform:translate(-100%)}.source-problem-drawer__filters[data-v-f97f21d0]{grid-template-columns:repeat(2,minmax(0,1fr))}.source-problem-drawer__footer[data-v-f97f21d0]{flex-wrap:wrap}}.loading[data-v-c6b39ad4]{display:flex;align-items:center;justify-content:center;padding:64px 24px;color:var(--text-muted);font-size:1rem}.error-state[data-v-c6b39ad4]{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:64px 24px;gap:16px;color:var(--danger);font-size:1rem}.exam-container[data-v-c6b39ad4]{display:flex;min-height:calc(100vh - 120px)}.single-mode-container[data-v-c6b39ad4]{position:relative}.source-panel-trigger[data-v-c6b39ad4]{position:fixed;left:var(--app-left-offset, 0px);top:74px;width:42px;height:116px;z-index:111;background:linear-gradient(180deg,#0f766e,#115e59);border-radius:0 14px 14px 0;box-shadow:0 10px 24px #0f766e3d;display:flex;align-items:center;justify-content:center;cursor:pointer}.source-panel-trigger-label[data-v-c6b39ad4]{writing-mode:vertical-rl;text-orientation:mixed;color:#fff;font-size:.8125rem;font-weight:700;letter-spacing:2px}.card-panel[data-v-c6b39ad4]{position:fixed;left:var(--app-left-offset, 0px);top:56px;width:300px;height:calc(100vh - 120px);background:var(--bg-white);display:flex;flex-direction:column;padding:16px 16px 12px;border-right:1px solid var(--border-color);z-index:100}.source-panel[data-v-c6b39ad4]{position:fixed;top:64px;left:var(--app-left-offset, 0px);width:var(--source-panel-width);height:calc(100vh - 136px);background:var(--bg-white);display:flex;flex-direction:column;padding:10px;border:1px solid var(--border-color);border-left:none;border-radius:0 18px 18px 0;box-shadow:0 20px 50px #0f172a29;transform:translate(calc(-100% + 24px));transition:transform .22s ease;z-index:110}.source-panel.open[data-v-c6b39ad4]{transform:translate(0)}.source-panel-resizer[data-v-c6b39ad4]{position:fixed;top:64px;bottom:72px;width:14px;margin-left:-7px;z-index:112;cursor:col-resize;display:flex;align-items:center;justify-content:center}.source-panel-resizer[data-v-c6b39ad4]:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:transparent}.source-panel-resizer-grip[data-v-c6b39ad4]{width:4px;height:72px;border-radius:999px;background:linear-gradient(180deg,#14b8a62e,#14b8a68c,#14b8a62e);box-shadow:0 0 0 1px #14b8a62e}.source-panel-resizer:hover .source-panel-resizer-grip[data-v-c6b39ad4]{background:linear-gradient(180deg,#14b8a64d,#14b8a6d9,#14b8a64d)}.source-panel-handle[data-v-c6b39ad4]{position:absolute;right:0;top:0;width:6px;height:100%;cursor:col-resize;background:transparent}.source-panel-handle.active[data-v-c6b39ad4],.source-panel-handle[data-v-c6b39ad4]:hover{background:#14b8a633}.source-panel-header[data-v-c6b39ad4]{display:flex;justify-content:space-between;gap:8px;align-items:flex-start;padding-bottom:8px;border-bottom:1px solid var(--border-color)}.source-panel-title[data-v-c6b39ad4]{font-size:.9rem;font-weight:700;color:var(--text-primary)}.source-panel-subtitle[data-v-c6b39ad4]{margin-top:2px;font-size:.75rem;color:var(--text-secondary);line-height:1.45}.source-panel-toggle[data-v-c6b39ad4]{width:30px;height:30px;border-radius:9px;border:1px solid var(--border-color);background:#f8fafc;color:var(--text-primary)}.source-panel-filters[data-v-c6b39ad4]{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:8px 0;border-bottom:1px solid var(--border-color);align-items:center}.source-filter-select[data-v-c6b39ad4],.source-filter-input[data-v-c6b39ad4]{width:100%;min-width:0;border:1px solid var(--border-color);border-radius:9px;background:var(--bg-white);color:var(--text-primary);padding:8px 10px;font-size:.8125rem;outline:none}.source-filter-input[data-v-c6b39ad4]{min-width:0}.source-filter-select[data-v-c6b39ad4]:focus,.source-filter-input[data-v-c6b39ad4]:focus{border-color:#14b8a6;box-shadow:0 0 0 3px #14b8a624}.source-panel-body[data-v-c6b39ad4]{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:8px;padding:8px 0}.source-panel-empty[data-v-c6b39ad4]{min-height:140px;display:flex;align-items:center;justify-content:center;border:1px dashed var(--border-color);border-radius:14px;color:var(--text-secondary);background:#f8fafc;font-size:.875rem;text-align:center;padding:12px}.source-problem-item[data-v-c6b39ad4]{width:100%;border:1px solid var(--border-color);border-radius:12px;background:#fff;color:var(--text-primary);padding:10px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;text-align:left;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease,background .2s ease}.source-problem-item[data-v-c6b39ad4]:hover{border-color:#14b8a6;transform:translate(2px);box-shadow:0 10px 22px #0f766e1f}.source-problem-item.active[data-v-c6b39ad4]{border-color:#14b8a6;background:#f0fdfa}.source-problem-type[data-v-c6b39ad4]{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:24px;padding:0 8px;border-radius:999px;background:#14b8a624;color:#0f766e;font-size:.6875rem;font-weight:700}.source-problem-title[data-v-c6b39ad4]{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.8125rem;font-weight:600}.source-problem-difficulty[data-v-c6b39ad4]{color:#f59e0b;font-size:.75rem;letter-spacing:1px}.source-panel-footer[data-v-c6b39ad4]{padding-top:8px;border-top:1px solid var(--border-color)}.source-panel-footer .btn[data-v-c6b39ad4]{width:100%}.card-body-scroll[data-v-c6b39ad4]{flex:1;overflow-y:auto;min-height:0;margin:0 -16px;padding:0 16px}.resize-handle[data-v-c6b39ad4]{position:absolute;right:0;top:0;width:4px;height:100%;cursor:col-resize;background:transparent;transition:background .15s;z-index:101}.resize-handle[data-v-c6b39ad4]:hover,.resize-handle.active[data-v-c6b39ad4]{background:var(--primary)}.card-header[data-v-c6b39ad4]{margin-bottom:8px}.exam-name[data-v-c6b39ad4]{font-size:.875rem;font-weight:600;color:var(--text-primary);margin-bottom:4px;line-height:1.3;word-break:break-word}.exam-meta-line[data-v-c6b39ad4]{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:4px}.exam-mode[data-v-c6b39ad4],.exam-state[data-v-c6b39ad4]{font-size:.75rem;padding:2px 8px;border-radius:999px}.mode-exam[data-v-c6b39ad4]{background:#fef2f2;color:#dc2626}.mode-practice[data-v-c6b39ad4]{background:#ecfdf5;color:#059669}.exam-state[data-v-c6b39ad4]{background:#eef2ff;color:#4338ca}.exam-timer[data-v-c6b39ad4]{font-size:.8125rem;color:var(--primary);font-weight:500;margin-bottom:8px}.card-grid[data-v-c6b39ad4]{display:flex;flex-wrap:wrap;gap:2px;flex:1;align-content:flex-start}.card-number[data-v-c6b39ad4]{width:36px;height:36px;display:flex;align-items:center;justify-content:center;font-size:.8125rem;font-weight:500;border:none;border-radius:4px;cursor:pointer;transition:all .15s ease;position:relative;padding:0;line-height:1}.card-number[data-v-c6b39ad4]:hover{opacity:.85;transform:scale(1.05)}.card-unanswered[data-v-c6b39ad4]{background:#e0e0e0;color:#333}.card-answered[data-v-c6b39ad4]{background:#d4edda;color:#333}.card-current[data-v-c6b39ad4]{background:#e0e7ff;color:#312e81}.review-dot[data-v-c6b39ad4]{position:absolute;top:2px;right:2px;width:6px;height:6px;border-radius:50%;background:#ef4444}.card-footer[data-v-c6b39ad4]{margin-top:auto;padding-top:10px;border-top:1px solid var(--border-color);display:flex;flex-direction:column;gap:6px}.card-progress[data-v-c6b39ad4]{font-size:.75rem;color:var(--text-secondary);text-align:center;margin-bottom:2px}.btn-submit[data-v-c6b39ad4]{background:#f97316;color:#fff;padding:8px 14px;font-size:.875rem;font-weight:600;border:none;border-radius:var(--border-radius);cursor:pointer;transition:background .2s ease;width:100%;text-align:center}.btn-submit[data-v-c6b39ad4]:hover{background:#ea580c}.btn-submit[data-v-c6b39ad4]:disabled{opacity:.5;cursor:not-allowed}.btn-save[data-v-c6b39ad4]{background:transparent;color:var(--text-secondary);padding:6px 14px;font-size:.75rem;font-weight:500;border:1px solid var(--border-color);border-radius:var(--border-radius);cursor:pointer;transition:all .2s ease;width:100%;text-align:center}.btn-save[data-v-c6b39ad4]:hover{border-color:var(--primary);color:var(--primary)}.answer-area[data-v-c6b39ad4]{flex:1;background:#fff;overflow-y:auto;padding:16px 20px 80px;min-width:0}.single-mode-container .card-panel[data-v-c6b39ad4]{display:none}.single-mode-container .answer-area[data-v-c6b39ad4]{padding:18px 20px 56px 10px}.review-panel[data-v-c6b39ad4]{position:fixed;top:56px;right:0;height:calc(100vh - 120px);background:var(--bg-white);display:flex;flex-direction:column;padding:18px 18px 16px;border-left:1px solid var(--border-color);box-shadow:-10px 0 30px #0f172a14;z-index:101}.review-panel-resizer[data-v-c6b39ad4]{position:absolute;left:0;top:0;width:6px;height:100%;cursor:col-resize;background:transparent}.review-panel-resizer[data-v-c6b39ad4]:hover{background:#4f46e52e}.review-panel-header[data-v-c6b39ad4]{padding-bottom:12px;border-bottom:1px solid var(--border-color)}.review-panel-title[data-v-c6b39ad4]{font-size:1rem;font-weight:700;color:var(--text-primary)}.review-panel-subtitle[data-v-c6b39ad4]{margin-top:4px;font-size:.8125rem;color:var(--text-secondary);line-height:1.5}.review-panel-body[data-v-c6b39ad4]{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:14px;padding-top:14px}.review-panel-problem[data-v-c6b39ad4]{border:1px solid var(--border-color);border-radius:16px;background:#f8fbff;padding:14px}.review-panel-problem-index[data-v-c6b39ad4]{font-size:.75rem;font-weight:700;color:var(--primary)}.review-panel-problem-name[data-v-c6b39ad4]{margin-top:6px;font-size:.95rem;font-weight:700;color:var(--text-primary);line-height:1.5}.review-panel-problem-meta[data-v-c6b39ad4]{margin-top:10px;display:flex;flex-wrap:wrap;align-items:center;gap:8px}.review-panel-score[data-v-c6b39ad4]{font-size:.8125rem;color:var(--text-secondary);font-weight:600}.review-stat-grid[data-v-c6b39ad4]{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.review-stat-card[data-v-c6b39ad4]{border:1px solid var(--border-color);border-radius:14px;background:#fff;padding:12px 10px;text-align:center}.review-stat-value[data-v-c6b39ad4]{font-size:1.2rem;font-weight:800}.review-stat-value.success[data-v-c6b39ad4]{color:#059669}.review-stat-value.danger[data-v-c6b39ad4]{color:#dc2626}.review-stat-value.muted[data-v-c6b39ad4]{color:var(--text-secondary)}.review-stat-label[data-v-c6b39ad4]{margin-top:4px;font-size:.75rem;color:var(--text-secondary)}.review-panel-section[data-v-c6b39ad4]{border:1px solid var(--border-color);border-radius:16px;background:#fff;padding:14px}.review-section-title[data-v-c6b39ad4]{font-size:.875rem;font-weight:700;color:var(--text-primary);margin-bottom:10px}.review-hint-text[data-v-c6b39ad4]{margin:0;font-size:.8125rem;line-height:1.7;color:var(--text-secondary)}.review-oj-btn[data-v-c6b39ad4]{margin-top:12px;width:100%}.review-answer-list[data-v-c6b39ad4]{display:flex;flex-direction:column;gap:10px}.review-answer-item[data-v-c6b39ad4]{border:1px solid var(--border-color);border-radius:12px;padding:10px 12px;background:#f8fafc}.review-answer-item.correct[data-v-c6b39ad4]{border-color:#10b9814d;background:#ecfdf5}.review-answer-item.wrong[data-v-c6b39ad4]{border-color:#ef44443d;background:#fef2f2}.review-answer-student[data-v-c6b39ad4]{font-size:.8125rem;font-weight:700;color:var(--text-primary)}.review-answer-content[data-v-c6b39ad4]{margin-top:6px;font-size:.8125rem;color:var(--text-secondary);line-height:1.6;word-break:break-word}.review-answer-result[data-v-c6b39ad4]{margin-top:8px;font-size:.75rem;font-weight:700}.review-chip-group+.review-chip-group[data-v-c6b39ad4]{margin-top:12px}.review-chip-title[data-v-c6b39ad4]{margin-bottom:8px;font-size:.75rem;font-weight:700;color:var(--text-secondary)}.review-chip-list[data-v-c6b39ad4]{display:flex;flex-wrap:wrap;gap:8px}.review-chip[data-v-c6b39ad4]{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;font-size:.75rem;font-weight:700}.chip-correct[data-v-c6b39ad4]{background:#dcfce7;color:#166534}.chip-wrong[data-v-c6b39ad4]{background:#fee2e2;color:#b91c1c}.chip-unanswered[data-v-c6b39ad4]{background:#e5e7eb;color:#374151}.problem-card[data-v-c6b39ad4]{background:#fff;border-radius:8px;padding:12px 16px;margin-bottom:8px;box-shadow:0 1px 3px #0000001a;border:2px solid transparent;transition:border-color .2s ease;position:relative}.problem-card.problem-current[data-v-c6b39ad4]{border-color:#ffc107}.problem-header-inline[data-v-c6b39ad4]{display:flex;align-items:flex-start;gap:4px;flex-wrap:wrap}.review-flag[data-v-c6b39ad4]{cursor:pointer;font-size:18px;line-height:1.4;-webkit-user-select:none;user-select:none;opacity:.6;transition:all .2s;flex-shrink:0;padding:2px;border-radius:4px}.review-flag[data-v-c6b39ad4]:hover{opacity:1;background:#fffbeb;transform:scale(1.2)}.review-flag.flagged[data-v-c6b39ad4]{opacity:1}.problem-number[data-v-c6b39ad4]{font-size:.9375rem;font-weight:600;color:var(--text-primary);flex-shrink:0;line-height:1.6}.problem-score-badge[data-v-c6b39ad4]{font-size:.75rem;color:var(--primary);font-weight:500;background:#eef2ff;padding:1px 8px;border-radius:8px;margin-left:auto}.oj-entry-btn[data-v-c6b39ad4]{border:1px solid var(--primary);color:var(--primary);background:transparent;border-radius:999px;padding:4px 10px;font-size:.75rem;cursor:pointer}.programming-card-note[data-v-c6b39ad4]{margin:8px 0 12px 26px;font-size:.8125rem;color:var(--text-secondary)}.problem-content[data-v-c6b39ad4]{font-size:.9375rem;line-height:1.7;color:var(--text-primary);margin-bottom:0;flex:1;min-width:0}.programming-inline-note[data-v-c6b39ad4]{flex:1;min-width:220px;font-size:.875rem;line-height:1.7;color:var(--text-secondary);background:#f8fafc;border:1px dashed var(--border-color);border-radius:10px;padding:10px 12px}.problem-content[data-v-c6b39ad4] code,.fill-input[data-v-c6b39ad4],.console-output[data-v-c6b39ad4],.code-textarea[data-v-c6b39ad4]{font-family:JetBrains Mono,Menlo,Consolas,monospace}.problem-content[data-v-c6b39ad4] p{margin-bottom:8px}.problem-content[data-v-c6b39ad4] code:not(.md-code-block__content):not(pre code){background:var(--gray-100);padding:2px 6px;border-radius:4px;font-size:.8125rem}.problem-content[data-v-c6b39ad4] img{max-width:100%;border-radius:4px;margin:8px 0}.problem-content[data-v-c6b39ad4] table{border-collapse:collapse;width:100%;margin-bottom:12px;font-size:.875rem}.problem-content[data-v-c6b39ad4] th,.problem-content[data-v-c6b39ad4] td{border:1px solid var(--border-color);padding:8px 12px;text-align:left}.problem-content[data-v-c6b39ad4] th{background:var(--gray-50);font-weight:600}.options-list[data-v-c6b39ad4]{display:flex;flex-direction:column;gap:4px;margin-bottom:10px}.option-item[data-v-c6b39ad4]{display:flex;align-items:center;gap:6px;padding:6px 10px;border:1.5px solid var(--border-color);border-radius:var(--border-radius);cursor:pointer;transition:all .2s ease;background:var(--bg-white);-webkit-user-select:none;user-select:none}.option-item[data-v-c6b39ad4]:hover{border-color:var(--primary);background:#f8f9ff}.option-item.active[data-v-c6b39ad4]{border-color:var(--primary);background:#eef2ff}.option-item input[data-v-c6b39ad4]{position:absolute;opacity:0;width:0;height:0;pointer-events:none}.option-radio[data-v-c6b39ad4],.option-checkbox[data-v-c6b39ad4]{width:18px;height:18px;border:2px solid var(--border-color);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s ease}.option-radio[data-v-c6b39ad4]{border-radius:50%}.option-checkbox[data-v-c6b39ad4]{border-radius:3px}.option-item.active .option-radio[data-v-c6b39ad4],.option-item.active .option-checkbox[data-v-c6b39ad4]{border-color:var(--primary);background:var(--primary)}.option-item.active .option-radio[data-v-c6b39ad4]:after{content:"";width:6px;height:6px;border-radius:50%;background:#fff}.option-item.active .option-checkbox[data-v-c6b39ad4]:after{content:"✓";color:#fff;font-size:.75rem;font-weight:700}.option-label-text[data-v-c6b39ad4]{font-size:.875rem;font-weight:600;color:var(--primary);flex-shrink:0;min-width:16px}.option-text[data-v-c6b39ad4]{font-size:.875rem;color:var(--text-primary);line-height:1.5}.truefalse-list[data-v-c6b39ad4]{display:flex;gap:8px;margin-bottom:12px}.truefalse-btn[data-v-c6b39ad4]{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;font-size:.9375rem;font-weight:600;border:2px solid var(--border-color);border-radius:var(--border-radius-lg);cursor:pointer;transition:all .2s ease;background:var(--bg-white);color:var(--text-primary)}.truefalse-btn[data-v-c6b39ad4]:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}.true-btn.active[data-v-c6b39ad4]{border-color:#10b981;background:#ecfdf5;color:#059669}.false-btn.active[data-v-c6b39ad4]{border-color:#ef4444;background:#fef2f2;color:#dc2626}.tf-icon[data-v-c6b39ad4]{font-size:1.25rem}.fill-area[data-v-c6b39ad4]{margin-bottom:12px;font-size:.9375rem;line-height:2.2}.fill-part[data-v-c6b39ad4],.fill-text[data-v-c6b39ad4]{display:inline}.fill-input[data-v-c6b39ad4]{display:inline-block;width:160px;padding:4px 10px;border:none;border-bottom:2px solid var(--primary);font-size:.9375rem;color:var(--text-primary);background:transparent;outline:none;transition:border-color .2s ease;margin:0 4px}.fill-input[data-v-c6b39ad4]:focus{border-bottom-color:var(--primary-dark);background:#f8f9ff}.fill-input[data-v-c6b39ad4]::placeholder{color:var(--text-muted);font-size:.8125rem}.type-divider[data-v-c6b39ad4]{border:none;border-top:1px solid var(--border-color);margin:4px 0 12px}.problem-group[data-v-c6b39ad4]{margin-bottom:4px}.single-submit-section[data-v-c6b39ad4]{margin-top:14px;padding-top:14px;border-top:1px solid var(--border-color);display:flex;flex-direction:column;gap:10px}.single-submit-summary[data-v-c6b39ad4]{display:flex;align-items:center;gap:8px;border-radius:12px;padding:10px 12px;font-size:.875rem;font-weight:700}.single-submit-summary.passed[data-v-c6b39ad4]{background:#ecfdf5;color:#059669}.single-submit-summary.failed[data-v-c6b39ad4]{background:#fef2f2;color:#dc2626}.single-submit-summary-icon[data-v-c6b39ad4]{font-size:1rem}.single-submit-detail[data-v-c6b39ad4]{font-size:.875rem;color:var(--text-secondary);line-height:1.6}.single-problem-nav[data-v-c6b39ad4]{display:flex;gap:18px;flex-wrap:wrap;margin-left:24px}.single-submit-actions[data-v-c6b39ad4]{display:flex;justify-content:flex-start;align-items:center;gap:20px}.single-submit-actions .btn-submit[data-v-c6b39ad4]{width:auto;min-width:140px}.card-type-label[data-v-c6b39ad4]{font-size:.7rem;font-weight:600;color:var(--text-secondary);padding:3px 0 2px;margin-top:3px;border-top:1px solid var(--border-color)}.submit-dialog-text[data-v-c6b39ad4]{font-size:.9375rem;color:var(--text-secondary);line-height:1.6;margin:0}.submit-dialog-text strong[data-v-c6b39ad4]{color:var(--danger)}.result-page[data-v-c6b39ad4]{max-width:860px;margin:0 auto;padding:32px 16px 64px}.result-header[data-v-c6b39ad4]{text-align:center;margin-bottom:32px}.result-score-circle[data-v-c6b39ad4]{display:inline-flex;align-items:baseline;justify-content:center;padding:24px 32px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;width:120px;height:120px;flex-direction:column;color:#fff;margin-bottom:16px}.result-score[data-v-c6b39ad4]{font-size:2.5rem;font-weight:700;line-height:1}.result-total[data-v-c6b39ad4]{font-size:1rem;opacity:.85}.result-title[data-v-c6b39ad4]{font-size:1.375rem;font-weight:700;color:var(--text-primary);margin-bottom:4px}.result-subtitle[data-v-c6b39ad4]{font-size:.9375rem;color:var(--text-secondary);margin-bottom:12px}.result-stats[data-v-c6b39ad4]{display:flex;gap:16px;justify-content:center}.result-stat[data-v-c6b39ad4]{font-size:.875rem;font-weight:500;padding:4px 14px;border-radius:20px}.result-stat.correct[data-v-c6b39ad4]{background:#ecfdf5;color:#059669}.result-stat.wrong[data-v-c6b39ad4]{background:#fef2f2;color:#dc2626}.result-detail-list[data-v-c6b39ad4]{display:flex;flex-direction:column;gap:16px}.result-problem-card[data-v-c6b39ad4]{background:#fff;border-radius:var(--border-radius-lg);padding:20px;box-shadow:var(--shadow);border-left:4px solid transparent}.result-problem-card.result-correct[data-v-c6b39ad4]{border-left-color:#10b981}.result-problem-card.result-wrong[data-v-c6b39ad4]{border-left-color:#ef4444}.result-problem-header[data-v-c6b39ad4]{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}.result-problem-index[data-v-c6b39ad4]{font-size:.9375rem;font-weight:600;color:var(--text-primary)}.result-problem-type[data-v-c6b39ad4]{font-size:.8125rem;color:var(--text-secondary);background:var(--gray-100);padding:2px 8px;border-radius:4px}.result-status-tag[data-v-c6b39ad4]{font-size:.8125rem;font-weight:500;padding:2px 10px;border-radius:10px}.result-status-tag.result-correct[data-v-c6b39ad4]{background:#ecfdf5;color:#059669}.result-status-tag.result-wrong[data-v-c6b39ad4]{background:#fef2f2;color:#dc2626}.result-status-tag.result-pending[data-v-c6b39ad4]{background:#f3f4f6;color:#4b5563}.result-score-badge[data-v-c6b39ad4]{font-size:.8125rem;font-weight:600;color:var(--primary);margin-left:auto}.result-problem-content[data-v-c6b39ad4]{font-size:.9375rem;line-height:1.7;color:var(--text-primary);margin-bottom:16px}.result-options[data-v-c6b39ad4]{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.result-programming-summary[data-v-c6b39ad4]{display:flex;flex-direction:column;gap:8px;padding:12px 14px;margin-bottom:12px;border-radius:10px;background:#f8fafc;border:1px solid var(--border-color)}.result-programming-note[data-v-c6b39ad4]{font-size:.875rem;color:var(--text-primary)}.result-programming-meta[data-v-c6b39ad4]{display:flex;flex-wrap:wrap;gap:12px;font-size:.8125rem;color:var(--text-secondary)}.result-option[data-v-c6b39ad4]{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:6px;font-size:.875rem;border:1px solid var(--border-color);position:relative}.result-option.your-answer.correct-answer[data-v-c6b39ad4]{border-color:#10b981;background:#ecfdf5}.result-option.your-answer[data-v-c6b39ad4]:not(.correct-answer){border-color:#ef4444;background:#fef2f2}.result-option.correct-answer[data-v-c6b39ad4]:not(.your-answer){border-color:#10b981;background:#f0fdf4}.result-option-label[data-v-c6b39ad4]{font-weight:600;color:var(--primary);min-width:20px}.result-option-text[data-v-c6b39ad4]{color:var(--text-primary)}.result-mark[data-v-c6b39ad4]{font-size:.75rem;font-weight:500;padding:1px 8px;border-radius:4px;margin-left:auto;flex-shrink:0}.result-mark.your-answer[data-v-c6b39ad4]{background:#dbeafe;color:#2563eb}.result-mark.correct-answer[data-v-c6b39ad4]{background:#d1fae5;color:#059669}.result-fills[data-v-c6b39ad4]{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}.result-fill-item[data-v-c6b39ad4]{display:flex;align-items:center;gap:8px;font-size:.875rem;flex-wrap:wrap}.result-fill-label[data-v-c6b39ad4]{font-weight:600;color:var(--text-primary)}.result-fill-your[data-v-c6b39ad4]{color:var(--text-secondary)}.result-fill-correct[data-v-c6b39ad4]{color:#059669;font-weight:500}.result-fill-status[data-v-c6b39ad4]{font-weight:700;font-size:1rem}.result-fill-status.correct[data-v-c6b39ad4]{color:#10b981}.result-fill-status.wrong[data-v-c6b39ad4]{color:#ef4444}.result-analysis[data-v-c6b39ad4]{padding:12px 16px;background:var(--gray-50);border-radius:var(--border-radius);font-size:.875rem;color:var(--text-secondary);line-height:1.6}.result-analysis strong[data-v-c6b39ad4]{color:var(--text-primary)}.result-actions[data-v-c6b39ad4]{display:flex;justify-content:center;gap:12px;margin-top:32px;flex-wrap:wrap}@media (max-width: 768px){.source-panel-filters[data-v-c6b39ad4]{grid-template-columns:1fr}.source-panel[data-v-c6b39ad4]{display:none}.card-panel[data-v-c6b39ad4]{width:100%;min-width:unset;position:relative;height:auto;border-right:none;border-bottom:1px solid var(--border-color);flex-direction:row;flex-wrap:wrap;padding:12px;top:auto;left:auto}.exam-container[data-v-c6b39ad4]{margin-left:0;flex-direction:column}.card-header[data-v-c6b39ad4]{width:100%;margin-bottom:8px}.card-grid[data-v-c6b39ad4]{flex:1;min-width:0}.card-number[data-v-c6b39ad4]{width:36px;height:36px;font-size:.8125rem}.card-footer[data-v-c6b39ad4]{width:100%;flex-direction:row;flex-wrap:wrap;margin-top:8px;padding-top:8px}.card-progress[data-v-c6b39ad4]{width:100%}.btn-submit[data-v-c6b39ad4],.btn-save[data-v-c6b39ad4]{flex:1}.answer-area[data-v-c6b39ad4]{padding:16px;margin-left:0!important}.problem-card[data-v-c6b39ad4]{padding:12px}.truefalse-list[data-v-c6b39ad4]{flex-direction:column}}.feedback-inline-wrapper[data-v-c6b39ad4]{display:flex;justify-content:flex-end;padding:8px 0 0}.btn-feedback-inline[data-v-c6b39ad4]{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;background:transparent;border:1px solid var(--border-color);border-radius:var(--border-radius);color:var(--text-secondary);font-size:.8125rem;cursor:pointer;transition:all .15s}.btn-feedback-inline[data-v-c6b39ad4]:hover{background:var(--gray-50);border-color:var(--primary);color:var(--primary)}.feedback-icon[data-v-c6b39ad4]{font-size:.9375rem;line-height:1}.feedback-text[data-v-c6b39ad4]{line-height:1}.feedback-modal-card[data-v-c6b39ad4]{max-width:480px}.feedback-modal-header[data-v-c6b39ad4]{display:flex;align-items:center;justify-content:space-between;padding:16px 20px 0}.feedback-modal-title[data-v-c6b39ad4]{margin:0;font-size:1rem;font-weight:600}.feedback-close-btn[data-v-c6b39ad4]{background:none;border:none;font-size:1.25rem;cursor:pointer;color:var(--text-muted);padding:4px}.feedback-close-btn[data-v-c6b39ad4]:hover{color:var(--text-primary)}.feedback-modal-body[data-v-c6b39ad4]{padding:16px 20px;display:flex;flex-direction:column;gap:12px}.feedback-field[data-v-c6b39ad4]{display:flex;flex-direction:column;gap:4px}.feedback-label[data-v-c6b39ad4]{font-size:.8125rem;font-weight:500;color:var(--text-secondary)}.feedback-problem-title[data-v-c6b39ad4]{font-size:.875rem;font-weight:500;color:var(--text-primary)}.feedback-textarea[data-v-c6b39ad4]{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:.8125rem;resize:vertical;min-height:100px;box-sizing:border-box;font-family:inherit;line-height:1.6}.feedback-textarea[data-v-c6b39ad4]:focus{border-color:var(--primary);outline:none}.feedback-modal-footer[data-v-c6b39ad4]{display:flex;justify-content:flex-end;gap:8px;padding:12px 20px 16px}.mobile-exam-container[data-v-c6b39ad4]{display:block;min-height:100dvh;padding-bottom:76px;background:#f7f8fc}.mobile-exam-container .card-panel[data-v-c6b39ad4]{display:none}.mobile-exam-container .answer-area[data-v-c6b39ad4]{width:100%;max-width:680px;margin:0 auto;padding:12px;box-sizing:border-box}.mobile-exam-container .problem-card[data-v-c6b39ad4]{display:none;margin:0;border-radius:12px;box-shadow:0 4px 18px #0f172a14}.mobile-exam-container .problem-card.problem-current[data-v-c6b39ad4]{display:block}.mobile-exam-toolbar[data-v-c6b39ad4]{position:fixed;z-index:40;left:0;right:0;bottom:0;display:flex;gap:8px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:#fffffff5;border-top:1px solid #e2e8f0;box-shadow:0 -6px 18px #0f172a14}.mobile-exam-toolbar button[data-v-c6b39ad4]{flex:1;min-height:46px;border:1px solid #dbe2ef;border-radius:10px;background:#fff;color:#334155;font-weight:650}.mobile-exam-toolbar .mobile-card-toggle[data-v-c6b39ad4]{border-color:#6366f1;background:#6366f1;color:#fff}.mobile-answer-card[data-v-c6b39ad4]{position:fixed;z-index:50;left:12px;right:12px;bottom:76px;max-width:656px;margin:0 auto;padding:14px;border:1px solid #dbe2ef;border-radius:14px;background:#fff;box-shadow:0 16px 36px #0f172a2e}.mobile-answer-card-head[data-v-c6b39ad4]{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.mobile-answer-card-head button[data-v-c6b39ad4]{border:0;background:transparent;color:#6366f1}.mobile-answer-grid[data-v-c6b39ad4]{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;max-height:38vh;overflow:auto}.mobile-answer-grid button[data-v-c6b39ad4]{min-height:40px;border:1px solid #dbe2ef;border-radius:8px;background:#fff}.wrong-book-feedback[data-v-c6b39ad4]{margin:10px 0;padding:10px 12px;border-radius:8px;font-weight:700;font-size:14px}.wrong-book-feedback.is-correct[data-v-c6b39ad4]{background:#ecfdf5;color:#15803d;border:1px solid #86efac}.wrong-book-feedback.is-wrong[data-v-c6b39ad4]{background:#fef2f2;color:#dc2626;border:1px solid #fca5a5}.mobile-answer-grid .card-correct[data-v-c6b39ad4]{background:#dcfce7;border-color:#22c55e;color:#166534}.mobile-answer-grid .card-wrong[data-v-c6b39ad4]{background:#fee2e2;border-color:#ef4444;color:#991b1b}.mobile-answer-grid .card-current[data-v-c6b39ad4]{outline:none;box-shadow:inset 0 0 0 2px #6366f1}.mobile-answer-grid .card-unanswered[data-v-c6b39ad4]{background:#e5e7eb;color:#4b5563;border-color:#cbd5e1}:root{--color-brand-50: #eef2ff;--color-brand-500: #4f46e5;--color-brand-600: #4338ca;--color-surface: #ffffff;--color-page: #f6f7fb;--color-border: #e5e7eb;--color-text-strong: #111827;--color-text-default: #374151;--color-text-muted: #6b7280;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-6: 24px;--space-8: 32px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--control-height: 36px;--font-size-control: .875rem;--font-weight-control: 500;--font-weight-label: 600;--primary: #4F46E5;--primary-light: #6366F1;--primary-dark: #4338CA;--success: #10B981;--success-light: #34D399;--success-dark: #059669;--warning: #F59E0B;--warning-light: #FBBF24;--warning-dark: #D97706;--danger: #EF4444;--danger-light: #F87171;--danger-dark: #DC2626;--info: #3B82F6;--gray-50: #F9FAFB;--gray-100: #F3F4F6;--gray-200: #E5E7EB;--gray-300: #D1D5DB;--gray-400: #9CA3AF;--gray-500: #6B7280;--gray-600: #4B5563;--gray-700: #374151;--gray-800: #1F2937;--gray-900: #111827;--bg-color: #F3F4F6;--bg-white: #FFFFFF;--text-primary: #111827;--text-secondary: #6B7280;--text-muted: #9CA3AF;--border-color: #E5E7EB;--border-radius: 8px;--border-radius-lg: 12px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px -1px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .1);--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;--font-mono: "JetBrains Mono", "Cascadia Code", "Consolas", "Monaco", "Courier New", monospace;--student-layout-bg: linear-gradient(180deg, #FFF5F5 0%, #F0F4FF 50%, #F0FFF4 100%);--student-layout-bg-desktop: linear-gradient(180deg, #FFF5F5 0%, #F0F4FF 30%, #F0FFF4 100%);--student-nav-bg: rgba(255, 255, 255, .96);--student-nav-border: var(--border-color);--student-nav-shadow: 0 -2px 10px rgba(0, 0, 0, .05)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);color:var(--text-primary);background-color:var(--bg-color);line-height:1.6;min-height:100vh;transition:background-color .2s ease,color .2s ease}.base-control{min-height:var(--control-height);border-radius:var(--radius-sm);font:inherit;font-size:var(--font-size-control);font-weight:var(--font-weight-control);transition:border-color .15s ease,box-shadow .15s ease,background-color .15s ease}.base-control:focus-visible{outline:none;border-color:var(--color-brand-500);box-shadow:0 0 0 3px #4f46e529}.base-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.base-button{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);min-height:var(--control-height);padding:0 var(--space-4);border:1px solid transparent;border-radius:var(--radius-sm);font:inherit;font-size:var(--font-size-control);font-weight:var(--font-weight-label);line-height:1;cursor:pointer;transition:background-color .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease}.base-button:disabled{cursor:not-allowed;opacity:.55}.base-button--primary{background:var(--color-brand-500);color:#fff}.base-button--primary:hover:not(:disabled){background:var(--color-brand-600)}.base-button--secondary{background:var(--color-surface);border-color:var(--color-border);color:var(--color-text-default)}.base-button--secondary:hover:not(:disabled){background:var(--color-page);border-color:var(--gray-300)}.base-button--ghost{background:transparent;color:var(--color-text-default)}.base-button--ghost:hover:not(:disabled){background:var(--gray-100)}.base-button--danger{background:var(--danger);color:#fff}.base-button--danger:hover:not(:disabled){background:var(--danger-dark)}.base-button--sm{min-height:30px;padding:0 var(--space-3);font-size:.8125rem}.base-button--lg{min-height:42px;padding:0 var(--space-6)}body.col-resize-active{cursor:col-resize;-webkit-user-select:none;user-select:none}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-dark)}ul,ol{list-style:none}img{max-width:100%;height:auto}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit;font-size:inherit}.container{max-width:1200px;margin:0 auto;padding:0 16px}.flex{display:flex}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.items-start{align-items:flex-start}.items-end{align-items:flex-end}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.justify-end{justify-content:flex-end}.gap-1{gap:4px}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.gap-6{gap:24px}.text-center{text-align:center}.text-right{text-align:right}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.text-xl{font-size:1.25rem}.text-2xl{font-size:1.5rem}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}.text-primary{color:var(--primary)}.text-success{color:var(--success)}.text-warning{color:var(--warning)}.text-danger{color:var(--danger)}.text-muted{color:var(--text-secondary)}.w-full{width:100%}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.card{background:var(--bg-white);border-radius:var(--border-radius-lg);box-shadow:var(--shadow);padding:24px}.markdown-body pre,.problem-content pre,.result-problem-content pre{background:#1f2430;color:#d6deeb;border:1px solid rgba(148,163,184,.22);border-radius:0;padding:0;overflow-x:auto;box-shadow:0 14px 28px #0f172a24}.markdown-body pre code,.problem-content pre code,.result-problem-content pre code{color:inherit;font-family:var(--font-mono)}.markdown-body code:not(.md-code-block__content):not(pre code),.problem-content code:not(.md-code-block__content):not(pre code),.result-problem-content code:not(.md-code-block__content):not(pre code){display:inline-block;background:#0f172a0f;color:#be5d1e;border:1px solid rgba(148,163,184,.2);border-radius:7px;padding:1px 7px;font-size:.85em;line-height:1.5}.md-code-block{position:relative;width:100%;max-width:100%;overflow:hidden;margin:8px 0 12px;background:#1f2430!important;color:#d6deeb;border:1px solid rgba(148,163,184,.22);border-radius:0!important;box-shadow:0 14px 28px #0f172a24;font-variant-ligatures:none!important;font-feature-settings:"liga" 0,"calt" 0!important}.md-code-block>pre,.markdown-body .md-code-block>pre,.problem-content .md-code-block>pre,.result-problem-content .md-code-block>pre{margin:0;padding:0;background:#1f2430!important;color:#d6deeb!important;border:none!important;border-radius:0!important;box-shadow:none!important;font-size:inherit;line-height:inherit}.md-code-block__header{display:flex;align-items:center;justify-content:space-between;min-height:38px;padding:0 14px;border-bottom:1px solid rgba(148,163,184,.14);background:#1f2430!important;border-radius:0!important}.md-code-block__lang{font-family:var(--font-mono);font-size:.72rem;font-weight:600;letter-spacing:.04em;text-transform:lowercase;color:#94a3b8;background:#1f2430!important;border-radius:0!important;font-variant-ligatures:none!important;font-feature-settings:"liga" 0,"calt" 0!important}.md-code-block__copy{display:inline-flex;align-items:center;gap:5px;height:26px;padding:0 8px;border:1px solid rgba(148,163,184,.18);border-radius:6px;background:#ffffff09;color:#94a3b8;font-size:12px;cursor:pointer;transition:color .15s ease,border-color .15s ease,background .15s ease}.md-code-block__copy:hover{color:#e2e8f0;border-color:#94a3b861;background:#ffffff14}.md-code-block__copy svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.8}.md-code-block>pre>code.md-code-block__content,.markdown-body .md-code-block>pre>code.md-code-block__content,.problem-content .md-code-block>pre>code.md-code-block__content,.result-problem-content .md-code-block>pre>code.md-code-block__content{display:block;padding:14px 16px 16px;margin:0;min-width:100%;white-space:pre;overflow-x:auto;line-height:1.7;font-size:.9rem;background:#1f2430!important;color:#d6deeb!important;border:0!important;border-radius:0!important;font-variant-ligatures:none!important;font-feature-settings:"liga" 0,"calt" 0!important}.markdown-body .token-comment,.problem-content .token-comment,.result-problem-content .token-comment{color:#6a9955}.markdown-body .token-string,.problem-content .token-string,.result-problem-content .token-string{color:#ce9178}.markdown-body .token-number,.problem-content .token-number,.result-problem-content .token-number{color:#b5cea8}.markdown-body .token-keyword,.problem-content .token-keyword,.result-problem-content .token-keyword{color:#569cd6}.markdown-body .token-type,.problem-content .token-type,.result-problem-content .token-type{color:#4ec9b0}.markdown-body .token-function,.problem-content .token-function,.result-problem-content .token-function{color:#dcdcaa}.markdown-body .token-preprocessor,.problem-content .token-preprocessor,.result-problem-content .token-preprocessor{color:#c586c0}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card-title{font-size:1.125rem;font-weight:600;color:var(--text-primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 16px;border-radius:var(--border-radius);font-size:.875rem;font-weight:500;border:1px solid transparent;transition:all .2s ease;white-space:nowrap}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-dark)}.btn-success{background-color:var(--success);color:#fff}.btn-success:hover{background-color:var(--success-dark)}.btn-warning{background-color:var(--warning);color:#fff}.btn-warning:hover{background-color:var(--warning-dark)}.btn-danger{background-color:var(--danger);color:#fff}.btn-danger:hover{background-color:var(--danger-dark)}.btn-outline{background-color:transparent;border-color:var(--border-color);color:var(--text-primary)}.btn-outline:hover{border-color:var(--primary);color:var(--primary)}.btn-sm{padding:4px 12px;font-size:.8125rem}.btn-lg{padding:12px 24px;font-size:1rem}.btn:disabled{opacity:.5;cursor:not-allowed}.tag{display:inline-flex;align-items:center;padding:2px 8px;border-radius:4px;font-size:.75rem;font-weight:500}.tag-primary{background-color:#eef2ff;color:var(--primary)}.tag-success{background-color:#ecfdf5;color:var(--success)}.tag-warning{background-color:#fffbeb;color:var(--warning)}.tag-danger{background-color:#fef2f2;color:var(--danger)}.tag-info{background-color:#eff6ff;color:var(--info)}.form-group{margin-bottom:16px}.form-label{display:block;margin-bottom:6px;font-size:.875rem;font-weight:500;color:var(--text-primary)}.form-input{width:100%;padding:8px 12px;border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:.875rem;color:var(--text-primary);background-color:var(--bg-white);transition:border-color .2s ease}.form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a}.form-input::placeholder{color:var(--text-muted)}.form-error{font-size:.8125rem;color:var(--danger);margin-top:4px}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.page-title{font-size:1.5rem;font-weight:700;color:var(--text-primary)}.page-subtitle{font-size:.875rem;color:var(--text-secondary);margin-top:4px}.loading{display:flex;align-items:center;justify-content:center;padding:48px;color:var(--text-muted)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:64px 24px;color:var(--text-muted);text-align:center}.empty-state-title{font-size:1rem;font-weight:500;margin-top:16px}.empty-state-desc{font-size:.875rem;margin-top:8px}.grid{display:grid}.grid-cols-2{grid-template-columns:repeat(2,1fr)}.grid-cols-3{grid-template-columns:repeat(3,1fr)}.grid-cols-4{grid-template-columns:repeat(4,1fr)}@media (max-width: 768px){.grid-cols-2,.grid-cols-3,.grid-cols-4{grid-template-columns:1fr}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#94a3b866;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#94a3b899}::-webkit-scrollbar-corner{background:transparent}::-webkit-scrollbar-button{display:none;width:0;height:0}*{outline:none}*:focus-visible{outline:2px solid var(--primary);outline-offset:1px}input:focus,textarea:focus,select:focus{outline:none;box-shadow:none}.unified-list-page{--list-gap: 12px;max-width:none!important;min-width:0;padding:0!important}.unified-list-page .app-page-header{margin-bottom:var(--list-gap)}.unified-list-page>.card,.unified-list-page>.tab-content,.unified-list-page>.user-table,.unified-list-page>.submission-records-card,.unified-list-page>.review-panel,.unified-list-page.paper-library-page>.card{border:1px solid var(--border-color);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-sm)}.unified-list-page .filter-toolbar,.unified-list-page .submission-toolbar,.unified-list-page .template-toolbar,.unified-list-page .section-toolbar,.unified-list-page .floating-filter-card,.unified-list-page .center-tabs,.unified-list-page .tab-bar{display:flex;align-items:center;flex-wrap:wrap;gap:8px;min-height:42px;margin-bottom:var(--list-gap);padding:8px 10px;border:1px solid var(--border-color);border-radius:8px;background:var(--bg-white);box-shadow:0 2px 8px #0f172a0a}.unified-list-page .filter-toolbar .form-input,.unified-list-page .submission-toolbar .form-input,.unified-list-page .filter-select,.unified-list-page .filter-input,.unified-list-page .sort-select,.unified-list-page .collection-select,.unified-list-page .collection-sort{min-height:34px;height:34px;border-radius:8px;border-color:var(--border-color);background:var(--bg-white)}.unified-list-page .filter-input,.unified-list-page .toolbar-search{flex:1 1 220px;min-width:180px}.unified-list-page .filter-toolbar>.btn,.unified-list-page .submission-toolbar>.btn,.unified-list-page .template-toolbar>.btn,.unified-list-page .section-toolbar>.btn{min-height:34px}.unified-list-page .batch-action-toolbar{margin-bottom:var(--list-gap);padding:10px 12px;border-radius:8px}.unified-list-page .student-grid,.unified-list-page .class-grid,.unified-list-page .paper-grid,.unified-list-page .review-grid,.unified-list-page .assignment-card-grid,.unified-list-page .syllabus-grid{display:flex;flex-direction:column;gap:8px}.unified-list-page .student-card,.unified-list-page .class-card,.unified-list-page .paper-card,.unified-list-page .review-card,.unified-list-page .assignment-card,.unified-list-page .syllabus-card,.unified-list-page .intervention-card{border:1px solid var(--border-color);border-radius:8px;box-shadow:none;transition:border-color .15s ease,background-color .15s ease,box-shadow .15s ease}.unified-list-page .student-card:hover,.unified-list-page .class-card:hover,.unified-list-page .paper-card:hover,.unified-list-page .review-card:hover,.unified-list-page .assignment-card:hover,.unified-list-page .syllabus-card:hover,.unified-list-page .intervention-card:hover{border-color:var(--primary-light);box-shadow:var(--shadow-sm)}.unified-list-page .record-list,.unified-list-page .template-list,.unified-list-page .collection-list,.unified-list-page .tag-tree,.unified-list-page .system-option-list{display:flex;flex-direction:column;gap:6px}.unified-list-page .record-row,.unified-list-page .template-row,.unified-list-page .collection-row,.unified-list-page .tree-row,.unified-list-page .system-option-row{min-height:48px;border:1px solid var(--border-color);border-radius:8px;background:var(--bg-white);transition:border-color .15s ease,background-color .15s ease}.unified-list-page .record-row:hover,.unified-list-page .template-row:hover,.unified-list-page .collection-row:hover,.unified-list-page .tree-row:hover,.unified-list-page .system-option-row:hover{border-color:var(--primary-light);background:var(--gray-50)}.unified-list-page .action-btns,.unified-list-page .card-actions,.unified-list-page .paper-card-actions,.unified-list-page .template-actions,.unified-list-page .tree-row-actions,.unified-list-page .review-item-actions{display:flex;align-items:center;flex-wrap:wrap;gap:6px}.unified-list-page .pagination,.unified-list-page .review-pagination{display:flex;align-items:center;justify-content:flex-end;gap:6px;margin-top:var(--list-gap)}.unified-list-page .empty-state,.unified-list-page .loading,.unified-list-page .loading-state,.unified-list-page .loading-inline{border:1px dashed var(--border-color);border-radius:8px;background:var(--bg-white);padding:48px 24px;text-align:center}@media (max-width: 768px){.unified-list-page .filter-toolbar,.unified-list-page .submission-toolbar,.unified-list-page .template-toolbar,.unified-list-page .section-toolbar,.unified-list-page .center-tabs,.unified-list-page .tab-bar{align-items:stretch}.unified-list-page .filter-toolbar>*,.unified-list-page .submission-toolbar>*,.unified-list-page .template-toolbar>*,.unified-list-page .section-toolbar>*{width:100%;max-width:none}.unified-list-page .action-btns,.unified-list-page .card-actions,.unified-list-page .paper-card-actions,.unified-list-page .template-actions,.unified-list-page .tree-row-actions,.unified-list-page .review-item-actions{width:100%}}
