:root{--bg-primary:#F6F8FC;--bg-secondary:#ffffff;--bg-tertiary:#f1f5f9;--bg-bar:#ffffff;--bg-card:#ffffff;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--text-darkred:#475569;--accent-primary:#3b82f6;--accent-primary-hover:#2563eb;--accent-pink:#ec4899;--border-color:#e2e8f0;--border-color-hover:#cbd5e1;--danger:#ef4444;--danger-hover:#dc2626;--success:#22c55e;--shadow-sm:0 1px 2px 0 rgb(0 0 0/0.05);--shadow-md:0 2px 8px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px -3px rgb(0 0 0/0.1),0 4px 6px -4px rgb(0 0 0/0.1);--shadow-hover:0 20px 25px -5px rgb(0 0 0/0.1),0 8px 10px -6px rgb(0 0 0/0.1);--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-full:9999px;--transition-fast:150ms ease;--transition-base:200ms ease;--font-sans:var(--font-inter),var(--font-noto-sans-jp),"Hiragino Kaku Gothic ProN","Hiragino Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--nav-height:50px}*{margin:0;padding:0;box-sizing:border-box}body,button,input,select,textarea{font-family:var(--font-sans)}body{background:var(--bg-primary);color:var(--text-primary);line-height:1.5;min-height:100vh}.navbar{position:relative;height:var(--nav-height);background:var(--bg-primary);border-bottom:1px solid var(--border-color);z-index:100;padding:0 24px}.navbar,.navbar__inner{display:flex;align-items:center}.navbar__inner{justify-content:space-between;width:100%;max-width:1400px;margin:0 auto;height:100%}.navbar__logo{font-size:1.5rem;font-weight:800;color:var(--text-primary);text-decoration:none;letter-spacing:-.02em;font-family:var(--font-sans);display:inline-block;max-width:200px;transition:max-width .3s ease,opacity .3s ease,margin .3s ease,padding .3s ease}.navbar__logo,.navbar__right{overflow:hidden;white-space:nowrap}.navbar__right{max-width:300px;transition:max-width .3s ease,opacity .3s ease,gap .3s ease,padding .3s ease}.navbar__links{display:flex;gap:16px;list-style:none;align-items:center;z-index:2}.navbar__link{color:var(--text-secondary);text-decoration:none;font-size:.95rem;font-weight:700;padding:6px 12px;border:1px solid transparent;transition:all var(--transition-fast)}.navbar__link:hover{border-color:var(--border-color);background:var(--bg-tertiary)}.navbar__link--active{color:var(--accent-primary);border-color:var(--accent-primary)}.navbar__toggle{display:none}.main{padding-top:8px;padding-bottom:64px;min-height:calc(100vh - var(--nav-height))}.container{max-width:1400px;margin:0 auto;padding:0 24px}.page-header{margin-bottom:8px;display:flex;justify-content:center}.page-tabs{display:flex;list-style:none;gap:4px;background:var(--bg-tertiary);padding:2px;border-radius:var(--radius-full);overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;justify-content:flex-start}.page-tabs::-webkit-scrollbar{display:none}.page-tab{padding:4px 8px;font-size:.95rem;font-weight:700;cursor:pointer;border:none;background:transparent;color:var(--text-secondary);border-radius:var(--radius-full);transition:all var(--transition-fast);white-space:nowrap;flex-shrink:0}.page-tab:hover{color:var(--text-primary)}.page-tab--active{background:var(--accent-primary)!important;color:#ffffff!important;box-shadow:var(--shadow-sm)}.navigation-tabs-container{position:relative;width:100%}.image-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:16px;gap:16px;width:100%}@media (max-width:800px){.image-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}}@media (max-width:500px){.image-grid{grid-template-columns:minmax(0,1fr);gap:8px}}.image-card{position:relative;background:var(--bg-card);border:none;border-radius:var(--radius-sm);overflow:hidden;cursor:pointer;box-shadow:var(--shadow-md);transition:all var(--transition-base)}.image-card:hover{transform:translateY(-2px);box-shadow:0 8px 16px rgba(0,0,0,.1)}.image-card:hover .image-card__img{transform:scale(1.03)}.image-card__img-wrap{width:100%;position:relative;display:block;background:var(--bg-tertiary);aspect-ratio:16/9}@media (max-width:800px){.image-card__body{padding:6px}}.image-card__img{width:100%;height:100%;object-fit:contain;display:block;transition:transform var(--transition-base)}.skeleton{background:linear-gradient(90deg,#f1f5f9 25%,#e2e8f0 50%,#f1f5f9 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}.image-card__favorite{position:absolute;top:12px;right:12px;background:rgba(255,255,255,.8);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:none;color:var(--text-muted);width:32px;height:32px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:15;transition:all var(--transition-fast);box-shadow:var(--shadow-sm)}.image-card__favorite:hover{transform:scale(1.1)}.image-card__favorite--active,.image-card__favorite:hover{background:#ffffff;color:var(--accent-pink)}.image-card__body{padding:12px;background:#ffffff}.image-card__caption{font-size:.9rem;font-weight:400;color:var(--text-secondary);margin-bottom:2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis;line-height:1.3}.image-card__source{font-size:.85rem;color:var(--text-secondary);margin-bottom:6px;display:flex;align-items:center;gap:4px}.image-card__tags{display:flex;flex-wrap:wrap;gap:6px;flex:1 1}.tag{font-size:.75rem;padding:2px 8px;font-weight:700;border:none;border-radius:var(--radius-full);background:#eef2ff;color:#3b82f6;transition:all var(--transition-fast)}.tag:hover{background:var(--border-color)}.tag--lg{font-size:.9rem;padding:6px 14px}.tag--character{background:#eef2ff;color:#3b82f6}.tag--source{background:#f3e8ff;color:#9333ea}.image-card__footer{display:flex;justify-content:flex-end;align-items:center}.image-card__stats{font-size:.85rem;color:var(--text-muted);display:flex;align-items:center;gap:4px}.image-card__status-badge{position:absolute;top:8px;left:8px;padding:3px 6px;font-size:.65rem;font-weight:700;border-radius:4px;z-index:15;box-shadow:0 1px 3px rgba(0,0,0,.1)}.image-card__status-badge--unlisted{background:#fff3e0;border:1px solid #ffe0b2;color:#e65100}.image-card__status-badge--private{background:#eceff1;border:1px solid #cfd8dc;color:#37474f}.tag--status{font-size:.7rem;padding:2px 6px;font-weight:700;border:1px solid var(--border-color);border-radius:4px}.tag--status-unlisted{border-color:#ffe0b2;background:#fff3e0;color:#e65100}.tag--status-private{border-color:#cfd8dc;background:#eceff1;color:#37474f}.search-bar{width:100%;max-width:400px;margin:0 1rem;transition:all .3s ease}.search-bar__input-wrapper{position:relative;display:flex;align-items:center;width:100%}.search-bar__icon{position:absolute;left:16px;color:var(--text-muted)}.search-bar__input{width:100%;padding:6px 36px;border:1px solid var(--border-color);border-radius:var(--radius-full);background:var(--bg-secondary);color:var(--text-primary);font-family:var(--font-sans);font-size:1rem;outline:none;transition:all var(--transition-fast);box-shadow:var(--shadow-sm)}.search-bar__input:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px rgba(59,130,246,.1)}.search-bar__clear{position:absolute;right:12px;background:none;border:none;padding:4px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);cursor:pointer;border-radius:var(--radius-full);transition:color var(--transition-fast)}.search-bar__clear:hover{color:var(--text-primary)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:6px 16px;border-radius:var(--radius-md);font-family:var(--font-sans);font-size:1rem;font-weight:700;cursor:pointer;transition:all var(--transition-fast);border:1px solid transparent;text-decoration:none;box-shadow:var(--shadow-sm)}.btn--primary{background:var(--accent-primary);color:#ffffff}.btn--primary:hover{background:var(--accent-primary-hover)}.btn--secondary{background:#ffffff;color:var(--text-primary);border:1px solid var(--border-color)}.btn--secondary:hover{background:var(--bg-tertiary);border-color:var(--border-color-hover)}.btn--danger{background:var(--danger);color:#ffffff}.btn--danger:hover{background:var(--danger-hover)}.btn--sm{padding:4px 8px;font-size:.85rem}.btn--lg{padding:12px 24px}.btn:disabled{opacity:.6;cursor:not-allowed}.form-group{margin-bottom:16px}.form-label{display:block;font-size:.85rem;font-weight:700;color:var(--text-secondary);margin-bottom:6px}.form-input,.form-textarea{width:100%;padding:12px 16px;border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-secondary);color:var(--text-primary);font-family:var(--font-sans);font-size:1rem;outline:none;transition:all var(--transition-fast);box-shadow:var(--shadow-sm)}.form-input:focus,.form-textarea:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px rgba(59,130,246,.1)}.form-textarea{resize:vertical;min-height:80px}.form-textarea--expandable{min-height:42px;height:42px;padding:9px 16px;line-height:22px;resize:vertical;transition:height .2s ease,border-color var(--transition-fast),box-shadow var(--transition-fast)}.form-textarea--expandable:focus{height:100px}.form-group--horizontal{display:flex;align-items:center;gap:1rem;margin-bottom:.5rem}.form-group--horizontal.form-group--top{align-items:flex-start}@media (max-width:640px){.form-group--horizontal{flex-direction:column;gap:.35rem;align-items:stretch}}.form-label--horizontal{width:100px;flex-shrink:0;margin-bottom:0;padding-top:0;font-size:.85rem;font-weight:700;color:var(--text-secondary)}.form-label--horizontal-wrapper{width:100px;flex-shrink:0;display:flex;flex-direction:column;gap:.25rem}.form-label--horizontal-wrapper .form-label--horizontal{width:auto;padding-top:0}.form-hint{font-size:.75rem;color:var(--text-muted);margin-top:4px}.upload-area{border:2px dashed var(--border-color);background:var(--bg-secondary);border-radius:var(--radius-lg);padding:64px 24px;text-align:center;cursor:pointer;transition:all var(--transition-fast)}.upload-area--active,.upload-area:not(.upload-area--uploading):hover{border-color:var(--accent-primary);background:#eff6ff}.upload-area--uploading{cursor:default;pointer-events:none}.upload-area__icon{font-size:2.5rem;margin-bottom:12px;opacity:.7}.upload-area__text{font-weight:700;margin-bottom:6px}.upload-area__hint{font-size:.8rem;color:var(--text-muted)}.upload-preview{display:flex;flex-direction:column;gap:24px;margin-top:20px}.upload-preview__image{width:100%;aspect-ratio:16/9;max-height:600px;object-fit:contain;border:1px solid var(--border-color);background:#fafafa}.upload-preview__form{width:100%}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:200;display:flex;align-items:center;justify-content:center;padding:16px}.modal{background:#ffffff;border:1px solid #000000;max-width:800px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg)}.modal__header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border-color);background:#fafafa}.modal__title{font-size:1.1rem;font-weight:700}.modal__close{background:none;border:none;font-size:1.4rem;cursor:pointer;line-height:1;color:var(--text-muted)}.modal__close:hover{color:#000000}.modal__body{padding:20px}.modal__image{width:100%;max-height:400px;object-fit:contain;border:1px solid var(--border-color);background:#fafafa;margin-bottom:20px}.modal__footer{display:flex;gap:12px;justify-content:flex-end;padding:12px 20px;border-top:1px solid var(--border-color);background:#fafafa}.login-card{max-width:400px;margin:60px auto;border:1px solid var(--border-color);padding:30px;background:#fafafa}.login-card__title{font-size:1.3rem;font-weight:700;text-align:center;margin-bottom:20px}.alert{padding:10px 14px;font-size:.85rem;margin-bottom:16px;font-weight:700}.alert--error{background:#fff0f0;border:1px solid #ffd0d0;color:var(--danger)}.alert--success{background:#f0fff0;border:1px solid #d0ffd0;color:var(--success)}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.empty-state__text{font-size:1.1rem;font-weight:700;margin-bottom:8px}.loading-spinner{display:flex;align-items:center;justify-content:center;padding:40px}.loading-spinner__dot{width:8px;height:8px;background:var(--accent-primary);margin:0 3px;animation:bounce 1.2s ease-in-out infinite both}.loading-spinner__dot:first-child{animation-delay:-.32s}.loading-spinner__dot:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.progress-bar{width:100%;height:4px;background:#eeeeee;margin-top:12px}.progress-bar__fill{height:100%;background:var(--accent-primary);transition:width var(--transition-base)}@media (max-width:768px){.navbar__inner:has(.search-bar__input:focus) .navbar__logo{max-width:0;opacity:0;margin:0;padding:0}.navbar__inner:has(.search-bar__input:focus) .navbar__right{max-width:0;opacity:0;gap:0;padding:0}.navbar__inner:has(.search-bar__input:focus) .search-bar{max-width:100%!important;margin:0!important}.navbar{padding:0 16px}.action-bar{padding:12px 16px}.action-bar__inner{flex-direction:column;align-items:stretch;gap:8px}.search-bar{max-width:100%;margin:0 0 0 12px}.search-bar .btn{width:auto;flex-shrink:0}.container{padding:0 16px}.page-tab{padding:6px 12px;font-size:.85rem;flex:0 0 auto;text-align:center}}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.grecaptcha-badge{visibility:hidden;z-index:1000!important}body.show-recaptcha .grecaptcha-badge{visibility:visible}.drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:90;opacity:0;pointer-events:none;transition:opacity .3s ease}.drawer-overlay.open{opacity:1;pointer-events:auto}.hamburger-menu{position:fixed;top:0;right:0;height:100vh;width:250px;background-color:var(--bg-card);z-index:100;box-shadow:-4px 0 15px rgba(0,0,0,.1);transform:translateX(100%);transition:transform .3s ease-in-out;padding:1.5rem;display:flex;flex-direction:column;gap:.5rem;border:none;border-radius:0}.hamburger-menu.open{transform:translateX(0)}.lang-select{padding:.5rem 0;font-family:var(--font-sans);font-size:.95rem;font-weight:700;color:var(--text-primary);background:transparent;border:none;cursor:pointer;width:100%;text-align:left}.lang-select:focus{outline:none}.content-page{max-width:820px;margin:0 auto;padding:2.5rem 0 3rem}.content-page__title{font-size:1.875rem;font-weight:900;color:var(--text-primary);margin-bottom:1.5rem}.content-card{background:var(--bg-card);border:1px solid var(--border-color);padding:1.75rem}.content-card section+section{margin-top:1.75rem}.content-card h2{font-size:1.25rem;font-weight:700;color:var(--text-primary);border-bottom:1px solid var(--border-color);padding-bottom:.5rem;margin-bottom:.75rem}.content-card p{color:var(--text-secondary);line-height:1.8}.content-card p+p{margin-top:.75rem}.content-card a{color:var(--accent-primary);text-decoration:underline}.content-card a:hover{color:var(--accent-primary-hover)}.content-card ul{list-style:disc;padding-left:1.5rem;margin-top:.5rem;color:var(--text-secondary);line-height:1.8}.content-card ul li+li{margin-top:.35rem}.content-meta{text-align:right;font-size:.85rem;color:var(--text-muted);margin-top:1.5rem}.content-card a.btn{text-decoration:none}.content-card a.btn--primary,.content-card a.btn--primary:hover{color:#fff}.guide-step+.guide-step{margin-top:2.5rem}.guide-step__head{display:flex;align-items:center;margin-bottom:1rem}.guide-step__num{flex-shrink:0;width:2rem;height:2rem;border-radius:9999px;background:var(--accent-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;margin-right:1rem}.guide-step__title{font-size:1.4rem;font-weight:700;color:var(--text-primary)}.guide-step__body{margin-left:3rem;color:var(--text-secondary);line-height:1.8}.guide-step__body p+p,.guide-step__body p+ul{margin-top:.75rem}.site-footer{width:100%;border-top:4px solid var(--accent-primary);background:var(--bg-primary);padding:3rem 0;margin-top:3rem}.site-footer__inner{max-width:1100px;margin:0 auto;padding:0 1rem}.site-footer__grid{display:grid;grid-template-columns:1fr;grid-gap:2rem;gap:2rem;margin-bottom:2rem}@media (min-width:768px){.site-footer__grid{grid-template-columns:repeat(3,1fr)}}.site-footer__col{display:flex;flex-direction:column;gap:.75rem}.site-footer__brand{font-size:1.25rem;font-weight:900;color:var(--accent-primary)}.site-footer__desc{font-size:.85rem;color:var(--text-muted);max-width:20rem;line-height:1.7}.site-footer__heading{font-size:.8rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--text-primary)}.site-footer__links{list-style:none;display:flex;flex-direction:column;gap:.5rem}.site-footer__link{font-size:.85rem;color:var(--text-muted);text-decoration:none;transition:color var(--transition-fast)}.site-footer__link:hover{color:var(--accent-primary)}.site-footer__bottom{padding-top:2rem;border-top:1px solid var(--border-color);font-size:.85rem;color:var(--text-muted);text-align:center}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.search-bar__input::placeholder{color:var(--text-secondary);opacity:.8}.admin-work-input::placeholder{color:var(--text-muted)!important;opacity:.25!important}.auth-container{display:flex;justify-content:center;align-items:center;min-height:calc(80vh - var(--nav-height));padding:2rem 1rem}.auth-card{width:100%;max-width:420px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:2.25rem 2rem;box-shadow:var(--shadow-lg);transition:transform var(--transition-base),box-shadow var(--transition-base)}.auth-header{text-align:center;margin-bottom:1.75rem}.auth-brand-badge{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:var(--radius-lg);background:linear-gradient(135deg,var(--accent-primary) 0,#6366f1 100%);color:#ffffff;margin-bottom:1rem;box-shadow:0 4px 12px rgba(59,130,246,.3)}.auth-brand-logo{font-size:1.5rem;font-weight:900;letter-spacing:-.05em}.auth-title{font-size:1.35rem;font-weight:800;color:var(--text-primary);letter-spacing:-.02em;margin-bottom:.35rem}.auth-subtitle{font-size:.875rem;color:var(--text-secondary);line-height:1.4}.auth-tabs{display:flex;background:var(--bg-tertiary);padding:4px;border-radius:var(--radius-md);margin-bottom:1.5rem;gap:4px}.auth-tab{flex:1 1;display:flex;align-items:center;justify-content:center;gap:.4rem;padding:.55rem .75rem;font-size:.875rem;font-weight:600;color:var(--text-secondary);background:transparent;border:none;border-radius:calc(var(--radius-md) - 2px);cursor:pointer;transition:all var(--transition-fast)}.auth-tab:hover{color:var(--text-primary)}.auth-tab--active{background:var(--bg-card);color:var(--accent-primary);box-shadow:var(--shadow-sm);font-weight:700}.auth-form{gap:1.25rem}.auth-field,.auth-form{display:flex;flex-direction:column}.auth-field{gap:.4rem}.auth-label{font-size:.85rem;font-weight:600;color:var(--text-primary)}.auth-input-wrapper{position:relative;display:flex;align-items:center}.auth-input-icon{position:absolute;left:12px;color:var(--text-muted);pointer-events:none;transition:color var(--transition-fast)}.auth-input{width:100%;padding:.7rem .9rem .7rem 2.5rem;font-size:.925rem;color:var(--text-primary);background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);outline:none;transition:all var(--transition-fast)}.auth-input:focus{background:var(--bg-card);border-color:var(--accent-primary);box-shadow:0 0 0 3px rgba(59,130,246,.15)}.auth-input-wrapper:focus-within .auth-input-icon,.auth-input:focus+.auth-input-icon{color:var(--accent-primary)}.auth-submit-btn{display:flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.8rem 1.25rem;font-size:.95rem;font-weight:700;color:#ffffff;background:linear-gradient(135deg,var(--accent-primary) 0,#2563eb 100%);border:none;border-radius:var(--radius-md);cursor:pointer;box-shadow:0 4px 12px rgba(59,130,246,.25);transition:all var(--transition-fast);margin-top:.5rem}.auth-submit-btn:hover:not(:disabled){background:linear-gradient(135deg,#2563eb,#1d4ed8);transform:translateY(-1px);box-shadow:0 6px 16px rgba(59,130,246,.35)}.auth-submit-btn:active:not(:disabled){transform:translateY(0)}.auth-submit-btn:disabled{opacity:.6;cursor:not-allowed}.auth-alert{padding:.75rem 1rem;border-radius:var(--radius-md);font-size:.85rem;font-weight:600;margin-bottom:1.25rem}.auth-alert--error{background:#fef2f2;border:1px solid #fecaca;color:#dc2626}.auth-footer{margin-top:1.75rem;padding-top:1.25rem;border-top:1px solid var(--border-color);text-align:center;font-size:.875rem;color:var(--text-secondary)}.auth-footer-link{color:var(--accent-primary);font-weight:700;text-decoration:none;transition:color var(--transition-fast)}.auth-footer-link:hover{text-decoration:underline;color:var(--accent-primary-hover)}.modal-content.auth-modal{position:relative;width:100%;max-width:440px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:2.25rem 2rem;box-shadow:var(--shadow-hover);animation:modalPop .2s cubic-bezier(.16,1,.3,1)}.modal-close-btn{position:absolute;top:1rem;right:1rem;background:transparent;border:none;color:var(--text-muted);border-radius:var(--radius-full);padding:.35rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.modal-close-btn:hover{color:var(--text-primary);background:var(--bg-tertiary)}@keyframes modalPop{0%{opacity:0;transform:scale(.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}.back-to-top{position:fixed;bottom:2rem;right:2rem;width:3rem;height:3rem;border-radius:var(--radius-full);background-color:var(--accent-primary);color:#ffffff;display:flex;align-items:center;justify-content:center;border:none;cursor:pointer;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(20px);transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background-color .2s ease;z-index:50}.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background-color:var(--accent-primary-hover);transform:translateY(-2px)}@media (max-width:768px){.back-to-top{bottom:1.5rem;right:1.5rem}}