.tool-panel{display:flex;flex-direction:column;align-items:center;gap:1rem;width:100%;max-width:30rem;margin:0 auto}.tool-duration{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem}.tool-duration-btn{padding:.4rem .85rem;border-radius:9999px;border:1px solid var(--border-color);background:var(--card-background);color:var(--text-secondary);font-size:.85rem;cursor:pointer;transition:all .2s ease}.tool-duration-btn:hover{color:var(--text-primary);border-color:var(--accent-light)}.tool-duration-btn.active{background:linear-gradient(135deg,#6ba6ff,#5786ea);border-color:#6babff;color:#fff}.tool-custom{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--text-secondary)}.tool-custom input{width:5.5rem;padding:.35rem .5rem;border-radius:.5rem;border:1px solid var(--border-color);background:var(--card-background);color:var(--text-primary)}.tool-toggle{min-width:12rem;padding:.85rem 2rem;border-radius:9999px;border:none;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;color:#fff}.tool-toggle.start{background:linear-gradient(135deg,#6ba6ff,#5786ea);box-shadow:0 4px 14px rgba(107,176,255,.35)}.tool-toggle.stop{background:linear-gradient(135deg,#f87171,#ef4444);box-shadow:0 4px 14px rgba(239,68,68,.3)}.tool-toggle:hover{transform:translateY(-1px)}.tool-toggle:active{transform:scale(.99)}.tool-remaining{font-variant-numeric:tabular-nums;font-size:1.5rem;font-weight:600;color:var(--text-primary);margin:0}.tool-status{margin:0;font-size:.85rem;text-align:center;max-width:28rem;line-height:1.45}.tool-status.tone-ok{color:#336be6}.tool-status.tone-warn{color:#d97706}.tool-status.tone-muted{color:var(--text-secondary)}.tool-notice{position:fixed;left:50%;bottom:1.5rem;transform:translateX(-50%);z-index:1000;max-width:min(90vw,28rem);display:flex;align-items:flex-start;gap:.75rem;padding:.75rem 1rem;border-radius:.75rem;background:var(--card-background);color:var(--text-primary);border:1px solid var(--border-color);box-shadow:0 8px 24px rgba(0,0,0,.15);font-size:.85rem;line-height:1.45}.tool-notice button{flex-shrink:0;background:transparent;border:none;color:var(--text-secondary);font-size:1.15rem;line-height:1;cursor:pointer}.seo-hero{display:flex;flex-direction:column;align-items:center;gap:1rem;text-align:center;padding:2.5rem 1rem 1.5rem}.seo-hero-title{font-size:clamp(2rem,5vw,3rem);font-weight:800;line-height:1.1;margin:0;color:var(--text-primary)}.seo-hero-subtitle{font-size:clamp(1rem,2.4vw,1.2rem);color:var(--text-secondary);max-width:40rem;margin:0;line-height:1.6}.seo-hero-note{font-size:.85rem;color:var(--text-secondary);margin:.25rem 0 0}.seo-section{max-width:56rem;margin:0 auto;padding:2rem 1rem}.seo-section-title{font-size:clamp(1.4rem,3vw,1.8rem);font-weight:700;margin:0 0 1.25rem;color:var(--text-primary);text-align:center}.seo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1rem}.seo-card{padding:1.25rem;border-radius:.85rem;border:1px solid var(--border-color);background:var(--card-background)}.seo-card-title{font-size:1.05rem;font-weight:600;margin:0 0 .4rem;color:var(--text-primary)}.seo-card-text{font-size:.9rem;line-height:1.6;color:var(--text-secondary);margin:0}.seo-steps{list-style:none;padding:0;flex-direction:column;max-width:40rem;margin:0 auto}.seo-step,.seo-steps{display:flex;gap:1rem}.seo-step{align-items:flex-start}.seo-step-num{flex-shrink:0;width:2rem;height:2rem;display:grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,#6ba6ff,#5786ea);color:#fff;font-weight:700}.seo-faq{display:flex;flex-direction:column;gap:.5rem;max-width:44rem;margin:0 auto}.seo-faq-item{border:1px solid var(--border-color);border-radius:.75rem;background:var(--card-background);padding:.85rem 1.1rem}.seo-faq-q{font-weight:600;color:var(--text-primary);cursor:pointer}.seo-faq-a{margin:.6rem 0 0;font-size:.92rem;line-height:1.6;color:var(--text-secondary)}.seo-links .seo-link-list{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;justify-content:center;gap:.6rem}.seo-link-list a{display:inline-block;padding:.5rem 1rem;border-radius:9999px;border:1px solid var(--border-color);background:var(--card-background);color:var(--text-primary);text-decoration:none;font-size:.9rem;transition:all .2s ease}.seo-link-list a:hover{border-color:var(--accent-light);color:#336be6}.seo-links-secondary{opacity:.92}.seo-links-secondary .seo-section-title{font-size:1.1rem;color:var(--text-secondary)}.seo-breadcrumbs{width:100%;max-width:60rem;margin:0 auto;padding:1rem 1rem 0}.seo-breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem;list-style:none;margin:0;padding:0;font-size:.85rem;color:var(--text-secondary)}.seo-breadcrumb-item{display:inline-flex;align-items:center;gap:.4rem}.seo-breadcrumb-list a{color:#336be6;text-decoration:none}.seo-breadcrumb-list a:hover{text-decoration:underline}.seo-breadcrumb-sep{color:var(--text-secondary);opacity:.6}