.hidden{display:none!important}
.chk,.inp{border-radius:.5rem}.chk input,.hint{margin-top:.25rem}.btn-primary,.chk,.chk input{cursor:pointer}.btn-ghost:hover:not(:disabled),.lbl{color:var(--color-ink)}.inp:focus,.step-tab.is-active{border-color:var(--color-accent)}.inp{width:100%;border:1px solid var(--color-line);background-color:#fff;padding:.625rem .75rem;text-align:left;outline:0;font-variant-numeric:tabular-nums;direction:ltr;box-sizing:border-box;transition:border-color .15s,box-shadow .15s}.inp:focus{box-shadow:0 0 0 2px rgba(203,213,225,.6)}.lbl{display:block;font-size:.875rem;font-weight:500;margin-bottom:.25rem}.hint{font-size:11px;color:var(--color-hint)}.chk{display:flex;align-items:flex-start;gap:.5rem;padding:.75rem;border:1px solid var(--color-line);font-size:.875rem;transition:background-color .15s}.btn-outline,.btn-primary{align-items:center;display:inline-flex}.chk:hover{background-color:var(--color-bgTheme)}.btn-outline:hover,.btn-primary{background-color:var(--color-accent);color:#fff}.chk input{width:1rem;height:1rem;accent-color:var(--color-accent);border-radius:4px}.btn-primary{justify-content:center;font-weight:700;padding:.625rem 1.5rem;border-radius:.5rem;border:none;box-shadow:0 1px 3px 0 rgba(0,0,0,.1),0 1px 2px -1px rgba(0,0,0,.1);transition:opacity .15s}.btn-primary:hover:not(:disabled){opacity:.9}.btn-primary:disabled,.step-tab:disabled{opacity:.5;cursor:not-allowed}.btn-outline{justify-content:center;background-color:transparent;border:1px solid var(--color-accent);color:var(--color-accent);font-weight:500;padding:.625rem 1.25rem;border-radius:.5rem;cursor:pointer;transition:.2s}.btn-ghost,.step-tab{align-items:center;cursor:pointer}.btn-ghost{display:inline-flex;justify-content:center;background:0 0;border:none;color:var(--color-muted);padding:.625rem 1rem;border-radius:.5rem;transition:color .15s}.btn-ghost:disabled:hover,.step-tab{color:var(--color-muted)}.btn-ghost:disabled{opacity:.4;cursor:not-allowed}
.step-tab span,.step-tab.is-active{color:var(--color-ink)}.stepper-wrapper{position:relative;margin-bottom:1.5rem;mask-image:linear-gradient(to right,transparent 0,black 12px,black calc(100% - 12px),transparent 100%);-webkit-mask-image:linear-gradient(to right,transparent 0,black 12px,black calc(100% - 12px),transparent 100%)}.stepper-nav{display:flex;gap:.5rem;overflow-x:auto;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding:4px 28px;margin:0 -16px}.stepper-nav::-webkit-scrollbar{display:none}@media (min-width:768px){.stepper-wrapper{mask-image:none;-webkit-mask-image:none;padding-right:6px;padding-left:6px}.stepper-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:0;margin:0}}.step-tab{display:inline-flex;align-items:center;gap:.5rem;border-radius:.5rem;border:1px solid var(--color-line);background-color:#fff;padding:.5rem .875rem;text-align:right;transition:.2s;white-space:nowrap;flex-shrink:0}.step-tab:hover:not(:disabled){border-color:var(--color-soft);color:var(--color-ink)}.step-tab:disabled:hover{border-color:var(--color-line);color:var(--color-muted)}.step-tab span{width:1.5rem;height:1.5rem;border-radius:.375rem;background-color:var(--color-line);display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;flex-shrink:0}.step-tab.is-done span{background-color:var(--color-soft)}.step-tab.is-active span{background-color:var(--color-accent);color:#fff}
.diminished-value-guide{font-family:inherit;line-height:1.85;color:#2c3e50;margin-top:40px;padding-top:25px;border-top:1px solid #e2e8f0}.diminished-value-guide h2{font-size:1.4rem;font-weight:800;color:#1a202c;margin-bottom:16px;line-height:1.5}.diminished-value-guide h3{font-size:1.15rem;font-weight:700;color:#2d3748;margin-top:24px;margin-bottom:12px}.diminished-value-guide p{margin-bottom:16px;text-align:justify}.formula-card{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:20px;margin:24px 0;display:flex;justify-content:center;align-items:center;overflow-x:auto}.math-formula{display:inline-flex;align-items:center;direction:rtl;font-weight:700;font-size:clamp(.9rem, 2.5vw, 1.1rem);color:#0f172a;white-space:nowrap}.formula-label{margin-left:12px}.fraction{display:inline-flex;flex-direction:column;align-items:center;vertical-align:middle;margin:0 4px}.numerator{border-bottom:2px solid #0f172a;padding-bottom:6px;text-align:center}.denominator{padding-top:6px;text-align:center;font-family:inherit}.diminished-value-guide ol,.diminished-value-guide ul{padding-right:22px;margin-bottom:20px}.diminished-value-guide li{margin-bottom:10px}.action-box{background-color:#f0fdf4;border-right:4px solid #16a34a;border-radius:0 6px 6px 0;padding:16px 20px;margin-top:24px}.action-box h3{margin-top:0;color:#14532d}.diminished-value-guide a{color:#2563eb;text-decoration:underline;text-underline-offset:4px;font-weight:600;transition:color .2s}.diminished-value-guide a:hover{color:#1d4ed8}