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var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:1.5rem}.seo-step-num{border-radius:var(--radius-md);background:var(--brand-subtle);width:32px;height:32px;color:var(--brand-primary);justify-content:center;align-items:center;margin-bottom:.75rem;font-size:1rem;font-weight:800;display:flex}.seo-step-title{color:var(--text-primary);margin-bottom:.35rem;font-size:1.05rem;font-weight:700}.seo-step-desc{color:var(--text-secondary);font-size:.88rem;line-height:1.45}.seo-related-tools-box{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:1.75rem}.related-tools-grid{flex-wrap:wrap;gap:.75rem;margin-top:.75rem;display:flex}.related-tool-chip{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-full);color:var(--brand-primary);transition:all var(--transition-fast);box-shadow:var(--shadow-sm);align-items:center;gap:.45rem;padding:.65rem 1.1rem;font-size:.88rem;font-weight:700;text-decoration:none;display:inline-flex}.related-tool-chip:hover{border-color:var(--brand-primary);background:var(--brand-subtle);transform:translateY(-1px)}.pro-modal-overlay{z-index:100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#000000a6;justify-content:center;align-items:center;padding:1.5rem;display:flex;position:fixed;inset:0}.pro-modal-content{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-xl);width:100%;max-width:520px;box-shadow:var(--shadow-xl);padding:2.25rem;position:relative}.pro-modal-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;min-width:44px;min-height:44px;display:flex;position:absolute;top:1.25rem;right:1.25rem}.pro-modal-header{align-items:center;gap:.75rem;margin-bottom:1rem;display:flex}.pro-modal-icon-badge{border-radius:var(--radius-md);background:var(--brand-primary);color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.pro-modal-list{flex-direction:column;gap:.75rem;margin-bottom:2rem;display:flex}.pro-modal-list-item{align-items:center;gap:.6rem;font-size:.92rem;display:flex}.ba-container{-webkit-user-select:none;user-select:none;cursor:ew-resize;border-radius:var(--radius-md);background:var(--bg-primary);width:100%;height:360px;position:relative;overflow:hidden}.ba-bg-img{object-fit:contain;width:100%;height:100%;position:absolute;top:0;left:0}.ba-label-right{color:#fff;pointer-events:none;background:#000000bf;border-radius:4px;padding:4px 10px;font-size:.75rem;font-weight:700;position:absolute;bottom:12px;right:12px}.ba-label-left{color:#fff;pointer-events:none;background:#000000bf;border-radius:4px;padding:4px 10px;font-size:.75rem;font-weight:700;position:absolute;bottom:12px;left:12px}.ba-fg-wrapper{border-right:2px solid var(--brand-primary);height:100%;position:absolute;top:0;left:0;overflow:hidden}.ba-fg-img{object-fit:contain;max-width:none;height:100%;position:absolute;top:0;left:0}.ba-handle-bar{pointer-events:none;justify-content:center;align-items:center;width:32px;display:flex;position:absolute;top:0;bottom:0}.ba-handle-circle{background:var(--brand-primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:12px;font-weight:700;display:flex;box-shadow:0 2px 6px #0006}.section-padding{padding:5rem 0}.section-title-box{text-align:center;max-width:800px;margin:0 auto 3.5rem}.section-title{letter-spacing:-.02em;margin-bottom:.75rem;font-size:2.25rem;font-weight:800}.section-subtitle{color:var(--text-secondary);font-size:1.05rem}.steps-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;display:grid}.step-card{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-lg);text-align:left;box-shadow:var(--shadow-sm);padding:2rem;position:relative}.step-num-badge{border-radius:var(--radius-md);background:var(--brand-subtle);width:44px;height:44px;color:var(--brand-primary);justify-content:center;align-items:center;margin-bottom:1.25rem;font-size:1.2rem;font-weight:800;display:flex}.step-title{margin-bottom:.5rem;font-size:1.25rem;font-weight:700}.step-desc{color:var(--text-secondary);font-size:.938rem;line-height:1.5}.formats-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;display:grid}.format-card{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);align-items:center;gap:1rem;padding:1.5rem;display:flex}.format-icon{border-radius:var(--radius-sm);background:var(--bg-surface-elevated);width:42px;height:42px;color:var(--brand-primary);flex-shrink:0;justify-content:center;align-items:center;display:flex}.format-name{font-size:1rem;font-weight:700}.format-tag{color:var(--text-muted);font-size:.75rem}.why-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;display:grid}.why-card{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-lg);text-align:left;padding:2rem}.why-icon{border-radius:var(--radius-md);background:var(--brand-subtle);width:48px;height:48px;color:var(--brand-primary);justify-content:center;align-items:center;margin-bottom:1.25rem;display:flex}.privacy-banner{background:var(--bg-surface);border:1px solid var(--brand-primary);border-radius:var(--radius-xl);text-align:center;box-shadow:var(--shadow-md);width:100%;max-width:1400px;margin:4rem auto;padding:3.5rem 3rem;position:relative;overflow:hidden}.privacy-banner-icon{border-radius:var(--radius-full);background:var(--brand-subtle);width:64px;height:64px;color:var(--brand-primary);justify-content:center;align-items:center;margin:0 auto 1.5rem;display:flex}.privacy-title{margin-bottom:1rem;font-size:1.75rem;font-weight:800}.privacy-quote{color:var(--brand-text);max-width:800px;margin:0 auto 1rem;font-size:1.1rem;font-weight:600;line-height:1.6}.faq-list{flex-direction:column;gap:1rem;width:100%;max-width:1300px;margin:0 auto;display:flex}.faq-item{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden}.faq-question{text-align:left;width:100%;color:var(--text-primary);cursor:pointer;background:0 0;border:none;justify-content:space-between;align-items:center;padding:1.35rem 1.5rem;font-size:1.05rem;font-weight:700;display:flex}.faq-answer{color:var(--text-secondary);padding:0 1.5rem 1.35rem;font-size:.95rem;line-height:1.6}.footer{background:var(--bg-surface);border-top:1px solid var(--border-color);margin-top:5rem;padding:4rem 0 2rem}.footer-grid{grid-template-columns:2.5fr 1fr 1fr;gap:3rem;width:100%;margin-bottom:3rem;display:grid}.footer-brand{text-align:left}.footer-desc{color:var(--text-muted);max-width:420px;margin-top:1rem;font-size:.9rem}.footer-col-title{color:var(--text-primary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:1.25rem;font-size:.95rem;font-weight:700}.footer-links-list{flex-direction:column;gap:.75rem;list-style:none;display:flex}.footer-link{color:var(--text-secondary);transition:color var(--transition-fast);font-size:.9rem}.footer-link:hover{color:var(--brand-primary)}.footer-bottom{border-top:1px solid var(--border-color);color:var(--text-muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;padding-top:2rem;font-size:.85rem;display:flex}@media (width>=1024px){.hero-title{font-size:3.8rem}.hero-subtitle{max-width:900px;font-size:1.35rem}.hero-trust-row{gap:2.5rem;max-width:1200px}.tool-grid{grid-template-columns:repeat(3,1fr);gap:2.25rem;width:100%}.tool-card-item{min-height:250px;padding:2.25rem 2.5rem}.category-directory-grid{grid-template-columns:repeat(4,1fr);gap:2rem;width:100%}.tool-card{width:100%;max-width:1300px;padding:3rem 4rem}.seo-tool-article{width:100%;max-width:1300px}.adsense-banner-wrapper{width:100%;max-width:1400px}}@media (width<=768px){.header-content{height:56px}.brand-logo-img{width:34px;height:34px}.brand-title-text{font-size:1.15rem}.hero-section{padding:2.25rem 0 1.5rem}.hero-title{margin-bottom:.65rem;font-size:2.15rem;line-height:1.2}.hero-subtitle{margin-bottom:1.5rem;font-size:1rem}.hero-trust-row{grid-template-columns:repeat(2,1fr);gap:.75rem;margin-bottom:2.5rem}.tool-grid{grid-template-columns:1fr;gap:1.25rem}.tool-card-item{min-height:auto;padding:1.5rem}.tool-card{border-radius:var(--radius-lg);padding:1.25rem 1rem}.dropzone{padding:2.25rem 1rem}.dimension-inputs-row{flex-direction:column;align-items:stretch;gap:.85rem}.aspect-lock-btn{width:100%}.seo-steps-grid,.category-directory-grid{grid-template-columns:1fr}}@media (width>=769px) and (width<=1023px){.tool-grid,.category-directory-grid{grid-template-columns:repeat(2,1fr)}}