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#2563eb66}.back-to-top:active{transform:translateY(-1px)scale(.98);box-shadow:0 2px 10px #2563eb4d}.back-to-top svg{transition:transform .2s}.back-to-top:hover svg{transform:translateY(-2px)}@media (max-width:768px){.back-to-top{z-index:1002;background:var(--color-primary);border:2px solid #ffffff4d;width:48px;height:48px;bottom:24px;right:24px;box-shadow:0 4px 20px #2563eb66}.back-to-top:hover{transform:translateY(-2px)scale(1.05);box-shadow:0 6px 25px #2563eb80}.back-to-top:active{transform:translateY(0)scale(.95)}.back-to-top.mobile{animation:3s ease-in-out infinite mobileButtonPulse}}@media (max-width:480px){.back-to-top{width:44px;height:44px;bottom:20px;right:20px}}@keyframes mobileButtonPulse{0%,to{box-shadow:0 4px 20px #2563eb66}50%{box-shadow:0 4px 25px #2563eb99}}@media (prefers-reduced-motion:reduce){.back-to-top{transition:opacity .2s}.back-to-top:hover{transform:none}}.appendix{background:var(--color-surface);border-radius:var(--radius-xl);padding:var(--space-xl);margin-top:var(--space-2xl);box-shadow:var(--shadow-md);border:1px solid var(--color-border)}.appendix-title{font-size:var(--font-size-2xl);color:var(--color-primary);margin-bottom:var(--space-sm);text-align:center;font-weight:700}.appendix-description{color:var(--color-text-light);text-align:center;margin-bottom:var(--space-lg)}.alphabet-index{gap:var(--space-lg);grid-template-columns:repeat(auto-fill,minmax(280px,1fr));display:grid}.letter-group{background:var(--color-background-light);border-radius:var(--radius-lg);padding:var(--space-md)}.letter-heading{font-size:var(--font-size-2xl);color:var(--color-primary);margin-bottom:var(--space-sm);padding-bottom:var(--space-xs);border-bottom:2px solid var(--color-primary);font-weight:700}.index-list{margin:0;padding:0;list-style:none}.index-item{align-items:center;gap:var(--space-sm);width:100%;padding:var(--space-xs)var(--space-sm);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-normal);text-align:left;font-family:inherit;font-size:var(--font-size-sm);background:0 0;border:none;display:flex}.index-item:hover{background:var(--color-surface);box-shadow:var(--shadow-sm)}.index-number{color:var(--color-secondary);min-width:36px;font-weight:600}.index-title{color:var(--color-text)}.appendix-conclusion{margin-top:var(--space-2xl)}.conclusion-card{padding:var(--space-2xl);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);text-align:center;background:linear-gradient(135deg,#fef7cd 0%,#fbbf24 100%);border:2px solid #f59e0b}.conclusion-title{color:#92400e;font-size:var(--font-size-2xl);margin-bottom:var(--space-lg);font-weight:700}.conclusion-content{max-width:800px;margin:0 auto}.conclusion-motto{font-size:var(--font-size-xl);color:#92400e;margin-bottom:var(--space-lg);font-style:italic}.conclusion-motto strong{font-weight:700}.conclusion-text{color:#78350f;font-size:var(--font-size-lg);margin-bottom:var(--space-md);text-align:left;line-height:1.7}.conclusion-signature{color:#92400e;font-size:var(--font-size-lg);margin-top:var(--space-lg);font-style:italic;font-weight:600}@media (max-width:768px){.appendix{padding:var(--space-lg);margin-top:var(--space-lg)}.appendix-title{font-size:var(--font-size-xl)}.appendix-description{font-size:var(--font-size-base);padding:0 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