.tool-header{background:var(--white);padding:var(--hero-section-padding, 2rem 2rem 2.5rem);margin-bottom:var(--hero-section-margin-bottom, 2.5rem);border-bottom:var(--hero-section-border-bottom, 1px solid var(--gray-200))}.tool-header-nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1.5rem;max-width:1600px;margin-left:auto;margin-right:auto}.tool-header-breadcrumb{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;list-style:none;margin:0;padding:0}.breadcrumb-item{display:flex;align-items:center;gap:.5rem}.tool-header-current{color:var(--gray-900);font-size:.875rem;font-weight:600;max-width:350px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tool-header-back{display:inline-flex;align-items:center;gap:.375rem;color:var(--gray-700);text-decoration:none;font-size:.875rem;font-weight:500;transition:color .2s ease}.tool-header-back:hover{color:var(--primary)}.tool-header-back svg{flex-shrink:0;width:16px;height:16px}.breadcrumb-separator{color:var(--gray-400);font-size:.875rem}.tool-header-category{display:inline-flex;align-items:center;gap:.375rem;padding:.375rem .75rem;background:var(--gray-100);color:var(--gray-700);border-radius:6px;text-decoration:none;font-size:.875rem;font-weight:500;transition:all .2s ease}.tool-header-category:hover{background:var(--gray-200);color:var(--gray-900)}.tool-header-category .category-icon{font-size:1rem;line-height:1;display:inline-flex;align-items:center;justify-content:center}.tool-header-actions{display:flex;align-items:center;gap:.5rem}.tool-header-share{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:44px;padding:10px 16px;border:2px solid var(--gray-300);border-radius:8px;background:var(--white);color:var(--gray-700);font-size:.9375rem;font-weight:600;cursor:pointer;transition:all .2s ease}.tool-header-share:hover{border-color:var(--cta-primary, #2563eb);color:var(--cta-primary, #2563eb);background:#2563eb0d;transform:translateY(-1px)}.tool-header-share:focus-visible{outline:3px solid var(--cta-focus-ring, #93c5fd);outline-offset:2px}.tool-header-share svg{flex-shrink:0;width:18px;height:18px}.tool-header-favorite{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:44px;padding:10px 16px;border:2px solid var(--gray-300);border-radius:8px;background:var(--white);color:var(--gray-700);font-size:.9375rem;font-weight:600;cursor:pointer;transition:all .2s ease}.tool-header-favorite:hover{border-color:#f97316;color:#f97316;background:#fff7ed;transform:translateY(-1px)}.tool-header-favorite:focus-visible{outline:3px solid #fdba74;outline-offset:2px}.tool-header-favorite.is-favorite{border-color:#f97316;color:#f97316;background:#fff7ed}.tool-header-favorite.is-favorite svg{animation:pop .3s ease}@keyframes pop{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}.tool-header-favorite svg{flex-shrink:0;width:20px;height:20px}.tool-header-title-row{text-align:center;max-width:900px;margin:0 auto;padding-top:.5rem}.tool-header-title{font-size:2rem;font-weight:700;color:var(--gray-900);margin-bottom:.75rem;line-height:1.2}.tool-header-description{color:var(--gray-600);font-size:1rem;max-width:700px;margin:0 auto;line-height:1.5}.tool-header-rating{display:flex;flex-direction:column;align-items:center;gap:.5rem;margin-top:1.25rem}.tool-header-rating-status{font-size:.875rem;color:var(--gray-500);font-weight:500}@media (max-width: 768px){.tool-header{padding:1rem 1rem 1.5rem;margin-bottom:1.5rem}.tool-header-nav{flex-wrap:wrap;margin-bottom:1rem}.tool-header-breadcrumb,.breadcrumb-item{gap:.375rem}.tool-header-back{font-size:.8125rem}.tool-header-back svg{width:14px;height:14px}.tool-header-category{padding:.25rem .5rem;font-size:.8125rem}.tool-header-category .category-icon{font-size:.875rem}.tool-header-current{font-size:.8125rem}.tool-header-title{font-size:1.5rem}.tool-header-description{font-size:.9rem}.tool-header-actions{gap:.5rem}.tool-header-share,.tool-header-favorite{min-height:48px;padding:10px 14px;font-size:.875rem}.tool-header-rating{margin-top:1rem}}@media (max-width: 480px){.tool-header-nav{flex-direction:column;align-items:flex-start;gap:.75rem}.tool-header-breadcrumb{width:100%;order:1}.tool-header-actions{width:100%;justify-content:flex-start;order:2}.tool-header-current{max-width:120px}.tool-header-share,.tool-header-favorite{flex:1;justify-content:center}}