:root{--font-body:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;--font-heading:'Outfit',-apple-system,BlinkMacSystemFont,sans-serif;--bg-primary:#0a0d14;--bg-secondary:#111622;--bg-card:#161d2d;--bg-card-hover:#1c2539;--bg-input:#0e131d;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;--border-color:#1e293b;--border-hover:#334155;--brand-primary:#3b82f6;--brand-primary-hover:#2563eb;--brand-gradient:linear-gradient(135deg,#3b82f6 0%,#8b5cf6 50%,#ec4899 100%);--brand-cyan:#06b6d4;--brand-accent:#8b5cf6;--brand-glow:rgba(59,130,246,0.35);--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-full:9999px;--shadow-sm:0 1px 3px rgba(0,0,0,0.3);--shadow-md:0 4px 12px rgba(0,0,0,0.4);--shadow-lg:0 12px 32px rgba(0,0,0,0.5);--transition:all 0.2s cubic-bezier(0.4,0,0.2,1)}[data-theme="light"]{--bg-primary:#f8fafc;--bg-secondary:#ffffff;--bg-card:#ffffff;--bg-card-hover:#f1f5f9;--bg-input:#f8fafc;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--border-color:#e2e8f0;--border-hover:#cbd5e1;--brand-primary:#2563eb;--brand-primary-hover:#1d4ed8;--brand-gradient:linear-gradient(135deg,#2563eb 0%,#7c3aed 50%,#db2777 100%);--brand-cyan:#0891b2;--brand-accent:#7c3aed;--brand-glow:rgba(37,99,235,0.2);--shadow-sm:0 1px 3px rgba(0,0,0,0.08);--shadow-md:0 4px 12px rgba(0,0,0,0.06);--shadow-lg:0 12px 32px rgba(0,0,0,0.1)}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-body);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden;min-height:100vh;display:flex;flex-direction:column}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}img{max-width:100%;height:auto;display:block}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 1.25rem}.gradient-text{background:var(--brand-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.site-header{position:sticky;top:0;z-index:100;background:rgba(10,13,20,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);transition:var(--transition)}[data-theme="light"] .site-header{background:rgba(255,255,255,0.9)}.header-container{display:flex;align-items:center;justify-content:space-between;height:4.25rem}.logo-wrapper{display:flex;align-items:center;gap:0.6rem;font-family:var(--font-heading);font-weight:800;font-size:1.35rem;letter-spacing:-0.02em}.logo-icon{display:flex;align-items:center;justify-content:center;width:2.4rem;height:2.4rem;background:var(--brand-gradient);border-radius:var(--radius-md);color:#fff;font-size:1.15rem;box-shadow:0 0 16px var(--brand-glow)}.nav-menu-wrapper{display:flex;align-items:center}.nav-menu{display:flex;align-items:center;list-style:none;gap:0.5rem}.nav-item{position:relative}.nav-link{display:flex;align-items:center;gap:0.35rem;padding:0.5rem 0.85rem;font-size:0.9rem;font-weight:600;color:var(--text-secondary);border-radius:var(--radius-sm);transition:var(--transition)}.nav-link:hover,.nav-link.active{color:var(--text-primary);background:var(--bg-card-hover)}.dropdown-menu{position:absolute;top:100%;left:0;min-width:680px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:1.25rem;display:none;opacity:0;visibility:hidden;transform:translateY(6px);transition:all 0.2s cubic-bezier(0.4,0,0.2,1);z-index:110}.dropdown-parent:hover .dropdown-menu,.dropdown-parent:focus-within .dropdown-menu{display:block;opacity:1;visibility:visible;transform:translateY(0)}.dropdown-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0.6rem}.dropdown-item{display:flex;align-items:flex-start;gap:0.6rem;padding:0.6rem 0.75rem;border-radius:var(--radius-sm);transition:var(--transition);font-size:0.82rem}.dropdown-item:hover{background:var(--bg-card-hover)}.dropdown-item .icon{font-size:1.15rem;line-height:1;margin-top:2px}.dropdown-item strong{display:block;color:var(--text-primary);font-size:0.85rem;margin-bottom:0.15rem}.dropdown-item span{color:var(--text-muted);font-size:0.75rem;line-height:1.3;display:block}.nav-actions{display:flex;align-items:center;gap:0.75rem}.theme-toggle-btn{display:flex;align-items:center;gap:0.4rem;padding:0.45rem 0.8rem;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-full);color:var(--text-secondary);font-size:0.82rem;font-weight:600;transition:var(--transition)}.theme-toggle-btn:hover{color:var(--text-primary);border-color:var(--border-hover)}.mobile-menu-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:2.25rem;height:2.25rem;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:6px}.mobile-menu-toggle span{display:block;width:100%;height:2px;background:var(--text-primary);border-radius:2px;transition:var(--transition)}.mobile-nav-drawer{display:none;position:fixed;top:4.25rem;left:0;width:100%;height:calc(100vh - 4.25rem);background:var(--bg-primary);border-top:1px solid var(--border-color);padding:1.5rem;overflow-y:auto;z-index:99}.mobile-nav-drawer.open{display:block}.mobile-nav-list{list-style:none;display:flex;flex-direction:column;gap:0.75rem}.mobile-nav-link{font-size:1.05rem;font-weight:600;padding:0.6rem 0.75rem;display:block;border-radius:var(--radius-sm);color:var(--text-primary)}.mobile-nav-sublist{list-style:none;padding-left:1rem;margin-top:0.35rem;display:grid;grid-template-columns:1fr 1fr;gap:0.5rem}.mobile-nav-sublink{font-size:0.82rem;padding:0.4rem 0.5rem;display:block;color:var(--text-secondary);border-radius:var(--radius-sm);background:var(--bg-card)}.breadcrumb-section{padding:0.85rem 0;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);font-size:0.82rem}.breadcrumb-list{display:flex;align-items:center;gap:0.5rem;list-style:none;flex-wrap:wrap;color:var(--text-muted)}.breadcrumb-item a{color:var(--text-secondary);transition:var(--transition)}.breadcrumb-item a:hover{color:var(--brand-primary)}.breadcrumb-item.active{color:var(--text-primary);font-weight:600}.hero-section{padding:3.5rem 0 2rem;text-align:center;position:relative}.hero-badge{display:inline-flex;align-items:center;gap:0.4rem;padding:0.35rem 0.85rem;background:rgba(59,130,246,0.12);border:1px solid rgba(59,130,246,0.3);border-radius:var(--radius-full);color:var(--brand-cyan);font-size:0.8rem;font-weight:700;letter-spacing:0.04em;text-transform:uppercase;margin-bottom:1.25rem}.hero-title{font-family:var(--font-heading);font-size:clamp(2rem,4.5vw,3.25rem);font-weight:800;letter-spacing:-0.03em;line-height:1.15;margin-bottom:1rem;max-width:900px;margin-left:auto;margin-right:auto}.hero-subtitle{font-size:clamp(1rem,1.8vw,1.2rem);color:var(--text-secondary);max-width:720px;margin:0 auto 1.5rem;line-height:1.6}.hero-features-pills{display:flex;align-items:center;justify-content:center;gap:1rem;flex-wrap:wrap;margin-bottom:2rem}.pill{display:inline-flex;align-items:center;gap:0.35rem;padding:0.3rem 0.75rem;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-full);font-size:0.8rem;color:var(--text-secondary)}.app-container{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:1.5rem;margin-bottom:3rem}.upload-zone{border:2px dashed var(--border-hover);border-radius:var(--radius-md);padding:3rem 1.5rem;text-align:center;background:var(--bg-card);transition:var(--transition);cursor:pointer;position:relative}.upload-zone.dragover{border-color:var(--brand-primary);background:rgba(59,130,246,0.06)}.upload-icon{font-size:3rem;margin-bottom:1rem;display:inline-block;filter:drop-shadow(0 4px 8px var(--brand-glow))}.upload-title{font-family:var(--font-heading);font-size:1.4rem;font-weight:700;margin-bottom:0.5rem;color:var(--text-primary)}.upload-desc{color:var(--text-secondary);font-size:0.9rem;margin-bottom:1.5rem}.upload-btn{display:inline-flex;align-items:center;gap:0.5rem;padding:0.75rem 1.75rem;background:var(--brand-gradient);color:#fff;font-weight:700;font-size:0.95rem;border-radius:var(--radius-sm);box-shadow:0 4px 14px var(--brand-glow);transition:var(--transition)}.upload-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px var(--brand-glow)}.upload-hints{margin-top:1.25rem;font-size:0.78rem;color:var(--text-muted);display:flex;align-items:center;justify-content:center;gap:1.5rem;flex-wrap:wrap}.url-import-wrapper{margin-top:1.25rem;display:flex;align-items:center;justify-content:center;gap:0.5rem;max-width:500px;margin-left:auto;margin-right:auto}.url-input{flex:1;background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:0.55rem 0.85rem;color:var(--text-primary);font-size:0.85rem;outline:none;transition:var(--transition)}.url-input:focus{border-color:var(--brand-primary)}.url-btn{padding:0.55rem 1.1rem;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);font-weight:600;font-size:0.85rem;transition:var(--transition)}.url-btn:hover{background:var(--bg-card-hover);border-color:var(--brand-primary)}.sample-images-bar{display:flex;align-items:center;justify-content:center;gap:0.6rem;flex-wrap:wrap;margin-top:1.25rem;padding-top:1.25rem;border-top:1px solid var(--border-color)}.sample-label{font-size:0.8rem;color:var(--text-muted);font-weight:600}.sample-chip{display:inline-flex;align-items:center;gap:0.4rem;padding:0.35rem 0.75rem;background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-full);font-size:0.78rem;color:var(--text-secondary);cursor:pointer;transition:var(--transition)}.sample-chip:hover{border-color:var(--brand-primary);color:var(--text-primary);background:var(--bg-card-hover)}.workspace-layout{display:none;grid-template-columns:1fr 360px;gap:1.5rem}.workspace-layout.active{display:grid}.canvas-stage-wrapper{display:flex;flex-direction:column;gap:1rem;min-width:0}.canvas-toolbar{display:flex;align-items:center;justify-content:space-between;padding:0.75rem 1rem;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);flex-wrap:wrap;gap:0.75rem}.view-mode-group{display:flex;align-items:center;background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:2px}.view-mode-btn{padding:0.35rem 0.75rem;font-size:0.78rem;font-weight:600;color:var(--text-secondary);border-radius:4px;transition:var(--transition)}.view-mode-btn.active{background:var(--brand-primary);color:#fff}.canvas-viewport{position:relative;background:#05070a;border:1px solid var(--border-color);border-radius:var(--radius-md);min-height:480px;display:flex;align-items:center;justify-content:center;overflow:hidden;user-select:none}.split-container{position:relative;width:100%;height:100%;max-height:640px;display:flex;align-items:center;justify-content:center;overflow:hidden}.viewport-image-wrapper{position:relative;display:inline-block;max-width:100%;max-height:640px}.enhanced-canvas{display:block;max-width:100%;max-height:640px;height:auto;object-fit:contain}.original-canvas-overlay{position:absolute;top:0;left:0;height:100%;width:50%;overflow:hidden;border-right:2px solid #fff;box-shadow:0 0 10px rgba(0,0,0,0.5)}.original-canvas{display:block;max-width:none;max-height:640px;height:100%}.slider-handle{position:absolute;top:0;bottom:0;width:3px;background:#fff;cursor:ew-resize;z-index:20;box-shadow:0 0 12px rgba(0,0,0,0.6);display:flex;align-items:center;justify-content:center;transform:translateX(-50%)}.slider-thumb{width:36px;height:36px;background:#fff;border-radius:50%;box-shadow:0 2px 10px rgba(0,0,0,0.4);display:flex;align-items:center;justify-content:center;color:#0f172a;font-size:0.75rem;font-weight:800;user-select:none;pointer-events:none}.badge-before,.badge-after{position:absolute;top:1rem;padding:0.3rem 0.7rem;border-radius:var(--radius-full);font-size:0.72rem;font-weight:700;letter-spacing:0.04em;text-transform:uppercase;backdrop-filter:blur(8px);z-index:15;pointer-events:none}.badge-before{left:1rem;background:rgba(0,0,0,0.7);color:#fff;border:1px solid rgba(255,255,255,0.2)}.badge-after{right:1rem;background:rgba(59,130,246,0.85);color:#fff;border:1px solid rgba(255,255,255,0.4);box-shadow:0 0 10px var(--brand-glow)}.processing-spinner{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:rgba(10,13,20,0.85);backdrop-filter:blur(8px);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:1.25rem 2rem;display:none;align-items:center;gap:0.85rem;z-index:30;color:var(--text-primary);font-weight:600;font-size:0.9rem}.processing-spinner.active{display:flex}.spinner{width:24px;height:24px;border:3px solid var(--border-color);border-top-color:var(--brand-primary);border-radius:50%;animation:spin 0.8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.action-bar{display:flex;align-items:center;justify-content:space-between;gap:0.75rem;padding:0.75rem 1rem;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);flex-wrap:wrap}.action-group-left,.action-group-right{display:flex;align-items:center;gap:0.6rem;flex-wrap:wrap}.btn-tool{display:inline-flex;align-items:center;gap:0.4rem;padding:0.55rem 0.95rem;background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);font-size:0.85rem;font-weight:600;transition:var(--transition)}.btn-tool:hover{background:var(--bg-card-hover);border-color:var(--border-hover)}.btn-danger-tool{color:var(--danger)}.btn-danger-tool:hover{background:rgba(239,68,68,0.1);border-color:var(--danger)}.btn-download-primary{display:inline-flex;align-items:center;gap:0.5rem;padding:0.6rem 1.4rem;background:var(--brand-gradient);color:#fff;border-radius:var(--radius-sm);font-size:0.88rem;font-weight:700;box-shadow:0 4px 12px var(--brand-glow);transition:var(--transition)}.btn-download-primary:hover{box-shadow:0 6px 18px var(--brand-glow);transform:translateY(-1px)}.download-options-group{display:flex;align-items:center;gap:0.4rem}.select-mini{background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);padding:0.5rem 0.6rem;font-size:0.8rem;outline:none}.sidebar-controls{display:flex;flex-direction:column;gap:1.25rem}.control-panel-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:1.25rem}.panel-title{font-family:var(--font-heading);font-size:0.95rem;font-weight:700;margin-bottom:1rem;color:var(--text-primary);display:flex;align-items:center;justify-content:space-between}.presets-grid{display:grid;grid-template-columns:1fr 1fr;gap:0.5rem;margin-bottom:1rem}.preset-btn{display:flex;flex-direction:column;align-items:flex-start;padding:0.65rem 0.75rem;background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);transition:var(--transition);text-align:left}.preset-btn:hover{background:var(--bg-card-hover);border-color:var(--border-hover)}.preset-btn.active{border-color:var(--brand-primary);background:rgba(59,130,246,0.1)}.preset-btn strong{font-size:0.8rem;color:var(--text-primary);margin-bottom:0.15rem}.preset-btn span{font-size:0.7rem;color:var(--text-muted);line-height:1.2}.upscale-options{display:grid;grid-template-columns:repeat(3,1fr);gap:0.5rem;margin-bottom:1.25rem}.scale-btn{padding:0.55rem 0.5rem;background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-secondary);font-size:0.82rem;font-weight:700;text-align:center;transition:var(--transition)}.scale-btn:hover{border-color:var(--border-hover);color:var(--text-primary)}.scale-btn.active{border-color:var(--brand-primary);background:var(--brand-primary);color:#fff}.slider-group{display:flex;flex-direction:column;gap:0.9rem}.slider-item{display:flex;flex-direction:column;gap:0.35rem}.slider-header{display:flex;align-items:center;justify-content:space-between;font-size:0.8rem}.slider-label{color:var(--text-secondary);font-weight:500}.slider-val{color:var(--text-primary);font-weight:700;font-variant-numeric:tabular-nums}input[type="range"]{-webkit-appearance:none;width:100%;height:6px;background:var(--bg-input);border-radius:3px;outline:none;border:1px solid var(--border-color)}input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--brand-primary);cursor:pointer;border:2px solid #fff;box-shadow:0 1px 4px rgba(0,0,0,0.3);transition:transform 0.1s}input[type="range"]::-webkit-slider-thumb:hover{transform:scale(1.2)}input[type="range"]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--brand-primary);cursor:pointer;border:2px solid #fff}.histogram-wrapper{background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:0.75rem;margin-bottom:1rem}.histogram-canvas{width:100%;height:80px;display:block}.info-badges-grid{display:grid;grid-template-columns:1fr 1fr;gap:0.5rem}.info-badge{background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:0.5rem 0.65rem}.info-badge-label{font-size:0.68rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.04em}.info-badge-val{font-size:0.82rem;font-weight:700;color:var(--text-primary);margin-top:2px}.section-title-wrap{text-align:center;margin-bottom:2.5rem}.section-eyebrow{font-size:0.8rem;color:var(--brand-cyan);font-weight:700;text-transform:uppercase;letter-spacing:0.05em;margin-bottom:0.5rem}.section-title{font-family:var(--font-heading);font-size:clamp(1.75rem,3vw,2.35rem);font-weight:800;letter-spacing:-0.02em;color:var(--text-primary);line-height:1.2}.section-subtitle{font-size:0.95rem;color:var(--text-secondary);max-width:640px;margin:0.5rem auto 0}.tools-section{padding:3.5rem 0;background:var(--bg-secondary);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:0.85rem}.tool-card{display:flex;align-items:center;gap:0.75rem;padding:0.85rem 1rem;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);transition:var(--transition)}.tool-card:hover{border-color:var(--brand-primary);transform:translateY(-2px);background:var(--bg-card-hover);box-shadow:var(--shadow-md)}.tool-card-icon{display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;background:var(--bg-input);border-radius:var(--radius-sm);font-size:1.25rem;flex-shrink:0}.tool-card-info strong{display:block;font-size:0.86rem;color:var(--text-primary);margin-bottom:0.15rem}.tool-card-info span{font-size:0.74rem;color:var(--text-muted);display:block;line-height:1.3}.features-section{padding:4rem 0}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1.5rem}.feature-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:1.75rem;transition:var(--transition);position:relative;overflow:hidden}.feature-card:hover{border-color:var(--border-hover);transform:translateY(-3px);box-shadow:var(--shadow-md)}.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand-gradient);opacity:0;transition:var(--transition)}.feature-card:hover::before{opacity:1}.feature-icon{display:inline-flex;align-items:center;justify-content:center;width:3rem;height:3rem;background:rgba(59,130,246,0.1);color:var(--brand-primary);border-radius:var(--radius-md);font-size:1.5rem;margin-bottom:1.25rem}.feature-card h3{font-family:var(--font-heading);font-size:1.15rem;font-weight:700;margin-bottom:0.6rem;color:var(--text-primary)}.feature-card p{font-size:0.88rem;color:var(--text-secondary);line-height:1.6}.how-it-works-section{padding:4rem 0;background:var(--bg-secondary);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}.step-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:1.75rem;position:relative}.step-number{position:absolute;top:1rem;right:1rem;font-family:var(--font-heading);font-size:2.2rem;font-weight:800;color:var(--border-color);line-height:1}.step-icon{font-size:2rem;margin-bottom:1rem}.step-card h3{font-family:var(--font-heading);font-size:1.1rem;font-weight:700;margin-bottom:0.5rem;color:var(--text-primary)}.step-card p{font-size:0.86rem;color:var(--text-secondary);line-height:1.5}.seo-article-section{padding:4.5rem 0}.seo-article-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:2.5rem;max-width:980px;margin:0 auto}.seo-article-card h2{font-family:var(--font-heading);font-size:1.85rem;font-weight:800;letter-spacing:-0.02em;margin-bottom:1.25rem;color:var(--text-primary)}.seo-article-card h3{font-family:var(--font-heading);font-size:1.3rem;font-weight:700;margin:1.75rem 0 0.75rem;color:var(--text-primary)}.seo-article-card p{font-size:0.95rem;color:var(--text-secondary);line-height:1.75;margin-bottom:1.25rem}.seo-article-card ul{padding-left:1.5rem;margin-bottom:1.5rem;color:var(--text-secondary);font-size:0.95rem;line-height:1.7}.seo-article-card li{margin-bottom:0.5rem}.seo-highlight-box{background:var(--bg-card);border-left:4px solid var(--brand-primary);padding:1.25rem;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:1.5rem 0}.faq-section{padding:4rem 0;background:var(--bg-secondary);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}.faq-container{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:1rem}.faq-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition)}.faq-item:hover{border-color:var(--border-hover)}.faq-question{width:100%;padding:1.25rem 1.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;text-align:left;font-family:var(--font-heading);font-size:1.05rem;font-weight:700;color:var(--text-primary);background:none}.faq-icon{font-size:1.25rem;transition:transform 0.2s;color:var(--brand-primary);flex-shrink:0}.faq-item.open .faq-icon{transform:rotate(180deg)}.faq-answer{padding:0 1.5rem 1.25rem;color:var(--text-secondary);font-size:0.9rem;line-height:1.65;display:none}.faq-item.open .faq-answer{display:block}.cta-section{padding:5rem 0;text-align:center;position:relative;background:radial-gradient(circle at center,rgba(59,130,246,0.12) 0%,transparent 70%)}.cta-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:3.5rem 2rem;max-width:880px;margin:0 auto;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}.cta-title{font-family:var(--font-heading);font-size:clamp(1.8rem,3.5vw,2.5rem);font-weight:800;letter-spacing:-0.02em;margin-bottom:1rem;color:var(--text-primary)}.cta-desc{font-size:1rem;color:var(--text-secondary);max-width:620px;margin:0 auto 2rem;line-height:1.6}.cta-buttons-wrap{display:flex;align-items:center;justify-content:center;gap:1rem;flex-wrap:wrap}.btn-cta-primary{padding:0.85rem 2rem;background:var(--brand-gradient);color:#fff;border-radius:var(--radius-sm);font-weight:700;font-size:0.95rem;box-shadow:0 4px 16px var(--brand-glow);transition:var(--transition)}.btn-cta-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px var(--brand-glow)}.btn-cta-outline{padding:0.85rem 2rem;background:var(--bg-card);border:1px solid var(--border-color);color:var(--text-primary);border-radius:var(--radius-sm);font-weight:700;font-size:0.95rem;transition:var(--transition)}.btn-cta-outline:hover{border-color:var(--brand-primary);background:var(--bg-card-hover)}.site-footer{background:#070a10;border-top:1px solid var(--border-color);padding:4rem 0 2rem;font-size:0.85rem;color:var(--text-secondary)}[data-theme="light"] .site-footer{background:#0f172a;color:#cbd5e1}.footer-columns-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;margin-bottom:3rem}.footer-col h4{font-family:var(--font-heading);font-size:0.95rem;font-weight:700;color:#fff;margin-bottom:1.15rem;letter-spacing:0.02em}.footer-links{list-style:none;display:flex;flex-direction:column;gap:0.6rem}.footer-link{color:inherit;transition:var(--transition);display:inline-flex;align-items:center;gap:0.35rem}.footer-link:hover{color:var(--brand-cyan);transform:translateX(2px)}.footer-bottom-bar{padding-top:2rem;border-top:1px solid rgba(255,255,255,0.08);text-align:center}.footer-legal-links{display:flex;align-items:center;justify-content:center;gap:1.5rem;flex-wrap:wrap;margin-bottom:1rem;font-size:0.82rem}.footer-legal-link{color:inherit;transition:var(--transition)}.footer-legal-link:hover{color:#fff;text-decoration:underline}.trademark-disclaimer{font-size:0.75rem;color:var(--text-muted);max-width:800px;margin:0 auto 0.75rem;line-height:1.5}.copyright-text{font-size:0.8rem;color:var(--text-secondary);font-weight:600}.cookie-banner{position:fixed;bottom:1.5rem;left:50%;transform:translateX(-50%);width:calc(100% - 2.5rem);max-width:680px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:1.1rem 1.4rem;display:none;align-items:center;justify-content:space-between;gap:1.25rem;z-index:200}.cookie-banner.show{display:flex}.cookie-content{font-size:0.82rem;color:var(--text-secondary);line-height:1.4}.cookie-content a{color:var(--brand-primary);text-decoration:underline}.cookie-actions{display:flex;align-items:center;gap:0.6rem;flex-shrink:0}.btn-cookie-accept{padding:0.45rem 1rem;background:var(--brand-primary);color:#fff;border-radius:var(--radius-sm);font-size:0.8rem;font-weight:700;transition:var(--transition)}.btn-cookie-accept:hover{background:var(--brand-primary-hover)}.btn-cookie-dismiss{padding:0.45rem 0.85rem;background:var(--bg-input);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:var(--radius-sm);font-size:0.8rem;font-weight:600;transition:var(--transition)}.btn-cookie-dismiss:hover{color:var(--text-primary);border-color:var(--border-hover)}.toast-container{position:fixed;bottom:2rem;right:2rem;display:flex;flex-direction:column;gap:0.5rem;z-index:300;pointer-events:none}.toast{padding:0.75rem 1.25rem;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);box-shadow:var(--shadow-lg);font-size:0.85rem;font-weight:600;display:flex;align-items:center;gap:0.6rem;transform:translateY(20px);opacity:0;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);pointer-events:auto}.toast.show{transform:translateY(0);opacity:1}.toast-success{border-left:4px solid var(--success)}.toast-error{border-left:4px solid var(--danger)}.toast-info{border-left:4px solid var(--brand-primary)}@media(max-width:1024px){.workspace-layout{grid-template-columns:1fr}.sidebar-controls{order:2}.dropdown-menu{min-width:540px}.dropdown-grid{grid-template-columns:1fr 1fr}}@media(max-width:768px){.header-container{height:3.75rem}.nav-menu-wrapper{display:none}.mobile-menu-toggle{display:flex}.dropdown-menu{position:static;min-width:100%;box-shadow:none;border:none;padding:0}.canvas-viewport{min-height:360px}.action-bar{flex-direction:column;align-items:stretch}.action-group-left,.action-group-right{justify-content:center}.presets-grid{grid-template-columns:1fr 1fr}.tools-grid{grid-template-columns:1fr 1fr}.cookie-banner{flex-direction:column;align-items:flex-start}}@media(max-width:480px){.tools-grid{grid-template-columns:1fr}.presets-grid{grid-template-columns:1fr}.info-badges-grid{grid-template-columns:1fr}.hero-title{font-size:1.85rem}.upload-zone{padding:2rem 1rem}}