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ease}.tkx-next:hover{background:var(--color-brand-50)}.tkx-prompt{font-size:1.45rem;line-height:2.1rem;text-align:center;color:var(--color-ink-900);min-height:3.5rem;padding:.5rem 0;display:flex;align-items:center;justify-content:center;flex-wrap:wrap}.tkx-input-wrap{margin-top:1.2rem;display:flex;flex-direction:column;gap:.6rem}.tkx-input{width:100%;border-radius:.9rem;border:1px solid var(--color-ink-200);background:#fff;padding:.75rem 1rem;font-size:1.05rem;color:var(--color-ink-900);box-shadow:var(--shadow-relief);transition:border-color .2s ease}.tkx-input:focus{border-color:var(--color-brand-400)}.tkx-opt{display:flex;align-items:center;gap:.7rem;border:1px solid var(--color-ink-200);border-radius:.9rem;padding:.7rem .9rem;cursor:pointer;background:#fff;transition:all .18s ease}.tkx-opt:hover{border-color:var(--color-brand-300);background:var(--color-brand-50)}.tkx-opt:has(input:checked){border-color:var(--color-brand-500);background:var(--color-brand-50);box-shadow:0 0 0 2px #7c3aed2e}.tkx-opt input{accent-color:var(--color-brand-600);width:1.05rem;height:1.05rem}.tkx-opt-text{font-size:1.1rem}.tkx-feedback{margin-top:1.1rem;border-radius:.9rem;padding:.75rem 1rem;font-weight:600;display:flex;align-items:center;gap:.5rem;font-size:.95rem}.tkx-feedback.hidden{display:none}.tkx-ok{background:var(--color-success-soft);color:#047857}.tkx-no{background:var(--color-danger-soft);color:#b91c1c}.tkx-hint{background:var(--color-warm-100);color:#b45309}.tkx-ic{width:1.15rem;height:1.15rem;flex-shrink:0}.tkx-ans{font-weight:800;margin-left:.15rem}.tkx-solution-wrap{margin-top:1.1rem;border-radius:.9rem;border:1px dashed var(--color-brand-200);background:var(--color-brand-50);padding:.9rem 1rem}.tkx-solution-wrap.hidden{display:none}.tkx-solution-label{display:inline-flex;align-items:center;gap:.35rem;font-size:.8rem;font-weight:700;color:var(--color-brand-700);margin-bottom:.4rem}.tkx-solution{font-size:1rem;line-height:1.7;color:var(--color-ink-700);white-space:pre-wrap}.tkx-acc{overflow:hidden}.tkx-acc-sum{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;padding:1.1rem 1.25rem;font-weight:700;color:var(--color-ink-900);user-select:none}.tkx-acc-sum::-webkit-details-marker{display:none}.tkx-acc[open] .tkx-acc-c{transform:rotate(180deg)}.tkx-acc-c{transition:transform .25s ease;color:var(--color-ink-400)}.tkx-acc-body{padding:0 1.25rem 1.25rem}.tkx-chip{display:inline-flex;align-items:center;border-radius:999px;border:1px solid var(--color-ink-200);background:#fff;padding:.3rem .75rem;font-size:.82rem;color:var(--color-ink-700);transition:all .18s ease}.tkx-chip:hover{border-color:var(--color-brand-300);color:var(--color-brand-700);background:var(--color-brand-50)}.tkx-formula-card{display:flex;flex-direction:column;overflow:hidden}.tkx-formula-head{display:inline-flex;align-items:center;gap:.5rem;padding:.9rem 1.25rem;font-weight:700;color:#fff}.tkx-fh-xx{background:linear-gradient(135deg,#8b5cf6,#7c3aed)}.tkx-fh-cz{background:linear-gradient(135deg,#06b6d4,#0891b2)}.tkx-fh-gz{background:linear-gradient(135deg,#f59e0b,#d97706)}.tkx-formula-list{list-style:none;margin:0;padding:.75rem 1.25rem;flex:1;display:flex;flex-direction:column;gap:.7rem}.tkx-formula{display:flex;flex-direction:column;gap:.2rem;padding-bottom:.7rem;border-bottom:1px dashed var(--color-ink-200)}.tkx-formula:last-child{border-bottom:none;padding-bottom:0}.tkx-formula-name{font-size:.85rem;font-weight:600;color:var(--color-ink-700)}.tkx-formula-tex{font-size:1.05rem;color:var(--color-ink-900)}.tkx-formula-note{font-size:.76rem;color:var(--color-ink-400);line-height:1.5}.tkx-formula-go{display:inline-flex;align-items:center;gap:.3rem;margin:0 1.25rem 1.1rem;font-size:.85rem;font-weight:600;color:var(--color-brand-700)}.tkx-formula-go:hover{gap:.5rem}.tkx-feat-ic{display:grid;place-items:center;height:2.6rem;width:2.6rem;border-radius:.85rem;background:var(--color-brand-50);color:var(--color-brand-600)}.tkx-faq{overflow:hidden}.tkx-faq-sum{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1.1rem 1.25rem;font-weight:600;color:var(--color-ink-900);user-select:none}.tkx-faq-sum::-webkit-details-marker{display:none}.tkx-faq[open] .tkx-acc-c{transform:rotate(180deg)}.tkx-faq-a{padding:0 1.25rem 1.2rem;font-size:.92rem;line-height:1.7;color:var(--color-ink-500)}.tkx-cta{border-radius:var(--radius-panel);padding:3rem 1.5rem;background:linear-gradient(135deg,#7c3aed,#6d28d9 55%,#0891b2 130%);box-shadow:var(--shadow-glow);overflow:hidden}.tkx-cta-btn{display:inline-flex;align-items:center;border-radius:999px;padding:.7rem 1.4rem;font-weight:700;font-size:.92rem;color:#fff;background:#ffffff29;border:1px solid rgba(255,255,255,.3);transition:all .2s ease}.tkx-cta-btn:hover{background:#ffffff47;transform:translateY(-2px)}