.btn{padding:12px 28px;border:none;border-radius:8px;font-size:1rem;font-weight:700;cursor:pointer;transition:background .15s,transform .1s;font-family:inherit}.btn:active{transform:scale(0.97)}.btn:disabled{background:#bbb;cursor:not-allowed}.btn-primary{background:#8b6914;color:#fff}.btn-primary:hover{background:#6d520f}.btn-primary:disabled{background:#d8cdb6;cursor:default}.btn-ghost{background:rgba(0,0,0,0);color:#8b6914;border:2px solid #8b6914}.btn-ghost:hover:not(:disabled){background:#f5e9c8}.btn-ghost:disabled{color:#c9bfae;border-color:#e0d8c8;cursor:default;background:rgba(0,0,0,0)}.btn-sm{padding:5px 12px;font-size:.8rem}.btn-danger{background:#b91c1c;color:#fff}.btn-danger:hover:not(:disabled){background:#991b1b}select,input[type=text],input[type=password],input[type=file]{padding:7px 10px;border:1px solid #ccc;border-radius:6px;font-size:.9rem;background:#fafaf8;outline:none;font-family:inherit;transition:border-color .2s}select:focus,input[type=text]:focus,input[type=password]:focus,input[type=file]:focus{border-color:#8b6914}.field{margin-bottom:20px}.field label{display:block;font-size:.85rem;font-weight:600;color:#555;margin-bottom:6px}.setup-field{display:flex;flex-direction:column;gap:6px}.setup-field label{font-size:.85rem;font-weight:600;color:#555}.filter-bar{background:#fff;border-radius:10px;box-shadow:0 1px 6px rgba(0,0,0,.07);padding:16px 20px;display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end;margin-bottom:20px}.filter-field{display:flex;flex-direction:column;gap:4px}.filter-field label{font-size:.78rem;font-weight:600;color:#666}@media(max-width: 768px){input[type=text]{width:100%}}.meta-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;flex-wrap:wrap;gap:8px}.meta-count{font-size:.875rem;color:#666}.meta-count strong{color:#5a3e1b}.pagination{display:flex;gap:4px;align-items:center;flex-wrap:wrap}.page-btn{min-width:34px;height:34px;padding:0 8px;border:1px solid #ddd;border-radius:6px;background:#fff;color:#333;font-size:.85rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s,border-color .15s}.page-btn:hover{background:#f5e9c8;border-color:#8b6914}.page-btn.active{background:#8b6914;color:#fff;border-color:#8b6914;font-weight:700}.page-btn:disabled{opacity:.35;cursor:not-allowed}.question-list{display:flex;flex-direction:column;gap:10px}.q-card{background:#fff;border-radius:10px;box-shadow:0 1px 6px rgba(0,0,0,.06);overflow:hidden;border-left:4px solid #c9a84c}.q-card.open .q-toggle{transform:rotate(180deg)}.q-card.open .q-body{display:block}.q-header{padding:14px 18px;display:flex;flex-direction:column;gap:8px;cursor:pointer;user-select:none}.q-header:hover{background:#fdf8ed}.q-header-top{display:flex;align-items:center;gap:10px}.q-num{background:#5a3e1b;color:#fff;font-size:.8rem;font-weight:700;border-radius:5px;padding:2px 8px;white-space:nowrap;flex-shrink:0}.q-level{font-size:.75rem;color:#fff;background:#c9a84c;border-radius:5px;padding:2px 7px;white-space:nowrap;flex-shrink:0}.q-stem{font-size:.95rem;line-height:1.6}.q-toggle{color:#aaa;font-size:1.1rem;flex-shrink:0;transition:transform .2s;margin-left:auto}.q-body{display:none;padding:0 18px 18px;border-top:1px solid #f0e8d8}.q-body.show-answer .choice-item.correct{background:#f0faf4;border-color:#a3d9b1}.q-body.show-answer .correct-badge{display:inline}.q-body.show-answer .explanation-box{display:block}.q-body.show-answer .no-explanation{display:block}.choice-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(220px, 1fr));gap:8px;margin-top:12px}.choice-item{display:flex;gap:8px;align-items:flex-start;background:#fafaf8;border:1px solid #e8e0d0;border-radius:6px;padding:8px 10px;font-size:.875rem;line-height:1.5;transition:background .2s,border-color .2s}.choice-item .choice-label{font-weight:700;color:#5a3e1b;flex-shrink:0;min-width:18px}.correct-badge{display:none;margin-left:auto;font-size:.75rem;color:#276c45;font-weight:700}.answer-actions{margin-top:14px;display:flex;justify-content:flex-end}.explanation-box{margin-top:12px;padding:12px 16px;background:#fdf8ed;border:1px solid #e0c97f;border-radius:8px;font-size:.88rem;line-height:1.7;color:#555;display:none}.explanation-box.visible{display:block}.explanation-box-title{font-size:.78rem;font-weight:700;color:#7c5c00;margin-bottom:4px}.explanation-box-text{white-space:pre-wrap}.no-explanation{font-size:.82rem;color:#bbb;margin-top:10px;display:none}.spinner{display:inline-block;width:28px;height:28px;border:3px solid #e8e0d0;border-top-color:#8b6914;border-radius:50%;animation:spin .7s linear infinite;margin-bottom:12px}@keyframes spin{to{transform:rotate(360deg)}}.state-msg{text-align:center;padding:60px 0;color:#aaa;font-size:.95rem}.loading-wrap{text-align:center;padding:60px 0}mark{background:#fff3b0;border-radius:2px}body{background:#f5f5f0}.page{max-width:1100px;margin:0 auto;padding:28px 16px 60px}h1{font-size:1.4rem;color:#5a3e1b;margin-bottom:20px}input[type=text]{width:240px}.btn{padding:7px 18px;font-size:.9rem;font-weight:600;align-self:flex-end}