:root{--bg-primary:#0a0f1d;--bg-secondary:#111827;--bg-card:#1a2234;--bg-card-hover:#222d42;--border-color:#2e3c54;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--accent:#3b82f6;--accent-hover:#2563eb;--accent-light:rgba(59,130,246,0.15);--success:#10b981;--success-hover:#059669;--danger:#ef4444;--warning:#f59e0b;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--font-sans:'Inter',sans-serif;--font-heading:'Outfit',sans-serif;--shadow-canvas:#070b14;--box-bg:rgb(28,156,135);--box-text:#ffffff;--transition:all 0.25s cubic-bezier(0.16,1,0.3,1)}[data-theme="light"]{--bg-primary:#f8fafc;--bg-secondary:#ffffff;--bg-card:#ffffff;--bg-card-hover:#f1f5f9;--border-color:#e2e8f0;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--accent:#2563eb;--accent-hover:#1d4ed8;--accent-light:rgba(37,99,235,0.1);--shadow-canvas:#e2e8f0;--box-bg:rgb(28,156,135);--box-text:#ffffff}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden;transition:background-color 0.3s ease,color 0.3s ease}a{color:inherit;text-decoration:none;transition:var(--transition)}button,input,select{font-family:inherit;font-size:inherit}button{cursor:pointer;border:none;outline:none}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}.navbar{position:sticky;top:0;z-index:100;background:rgba(17,24,39,0.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color)}[data-theme="light"] .navbar{background:rgba(255,255,255,0.9)}.navbar-inner{display:flex;align-items:center;justify-content:space-between;height:72px}.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-heading);font-weight:700;font-size:1.35rem;color:var(--text-primary)}.brand-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-md);background:linear-gradient(135deg,#3b82f6,#8b5cf6);color:#fff;box-shadow:0 4px 14px rgba(59,130,246,0.4)}.brand-highlight{background:linear-gradient(135deg,#60a5fa,#c084fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.nav-links{display:flex;align-items:center;gap:24px;list-style:none}.nav-item{position:relative}.nav-btn{background:none;color:var(--text-secondary);font-weight:500;font-size:0.95rem;display:flex;align-items:center;gap:6px;padding:8px 12px;border-radius:var(--radius-sm);transition:var(--transition)}.nav-btn:hover,.nav-link:hover{color:var(--accent)}.dropdown-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%);min-width:640px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:20px;box-shadow:0 20px 40px rgba(0,0,0,0.45);display:none;opacity:0;pointer-events:none;transition:opacity 0.2s ease}.dropdown-menu.show,.nav-item:hover .dropdown-menu{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;opacity:1;pointer-events:auto}.dropdown-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);font-size:0.875rem;color:var(--text-secondary);border:1px solid transparent}.dropdown-item:hover{background:var(--accent-light);color:var(--accent);border-color:rgba(59,130,246,0.2)}.nav-actions{display:flex;align-items:center;gap:14px}.theme-toggle{background:var(--bg-card);border:1px solid var(--border-color);color:var(--text-primary);width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:var(--transition)}.theme-toggle:hover{border-color:var(--accent);color:var(--accent)}.mobile-menu-btn{display:none;background:none;color:var(--text-primary);font-size:1.5rem;padding:6px}.breadcrumb-nav{padding:18px 0;background:transparent}.breadcrumb-list{display:flex;align-items:center;flex-wrap:wrap;gap:8px;list-style:none;font-size:0.875rem;color:var(--text-muted)}.breadcrumb-list a:hover{color:var(--accent)}.breadcrumb-sep{color:var(--text-muted);font-size:0.75rem}.breadcrumb-current{color:var(--text-primary);font-weight:600}.hero-section{padding:30px 0 20px;text-align:center}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:9999px;background:var(--accent-light);color:var(--accent);font-size:0.82rem;font-weight:600;margin-bottom:18px;border:1px solid rgba(59,130,246,0.3)}.hero-title{font-family:var(--font-heading);font-size:clamp(2rem,4vw,3.2rem);font-weight:800;letter-spacing:-0.03em;line-height:1.15;margin-bottom:14px}.hero-desc{max-width:720px;margin:0 auto 24px;color:var(--text-secondary);font-size:1.05rem}.app-workspace{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:28px 0 40px;align-items:start}.panel{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px;box-shadow:0 10px 30px rgba(0,0,0,0.15)}.panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid var(--border-color)}.panel-title{font-family:var(--font-heading);font-size:1.2rem;font-weight:700;display:flex;align-items:center;gap:10px}.layers-header{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}.layers-tabs{display:flex;flex-wrap:wrap;gap:8px}.layer-tab{padding:6px 14px;border-radius:var(--radius-sm);background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-secondary);font-size:0.85rem;font-weight:600;display:flex;align-items:center;gap:8px;transition:var(--transition)}.layer-tab.active{background:var(--accent);color:#ffffff;border-color:var(--accent)}.layer-tab-del{color:rgba(255,255,255,0.7);font-size:1rem;line-height:1;margin-left:4px}.layer-tab-del:hover{color:#fff}.btn-add-layer{padding:6px 12px;border-radius:var(--radius-sm);background:var(--accent-light);color:var(--accent);border:1px dashed var(--accent);font-size:0.85rem;font-weight:600;display:flex;align-items:center;gap:6px;transition:var(--transition)}.btn-add-layer:hover{background:var(--accent);color:#fff}.control-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}.control-item{display:flex;flex-direction:column;gap:8px}.control-item.full-width{grid-column:1/-1}.control-label-wrap{display:flex;justify-content:space-between;align-items:center;font-size:0.85rem;font-weight:600;color:var(--text-secondary)}.control-slider-wrap{display:flex;align-items:center;gap:12px}.range-input{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:4px;background:var(--border-color);outline:none}.range-input::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--accent);cursor:pointer;box-shadow:0 0 8px rgba(59,130,246,0.6);border:2px solid #fff}.range-input::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--accent);cursor:pointer;border:2px solid #fff}.num-input{width:70px;padding:6px 8px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);font-size:0.85rem;text-align:center}.num-input:focus{border-color:var(--accent)}.color-picker-wrap{display:flex;align-items:center;gap:10px}.color-input{width:40px;height:38px;padding:0;border:none;border-radius:var(--radius-sm);background:none;cursor:pointer}.color-hex-input{flex:1;padding:8px 12px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);font-family:monospace;font-size:0.88rem}.validation-feedback{font-size:0.78rem;color:var(--danger);min-height:18px;margin-top:2px;display:none}.validation-feedback.show{display:block}.switch-wrap{display:flex;align-items:center;gap:10px;cursor:pointer}.switch{position:relative;display:inline-block;width:44px;height:24px}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--border-color);transition:.3s;border-radius:24px}.slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:white;transition:.3s;border-radius:50%}input:checked + .slider{background-color:var(--accent)}input:checked + .slider:before{transform:translateX(20px)}.presets-section{margin-top:20px;padding-top:16px;border-top:1px solid var(--border-color)}.presets-title{font-size:0.9rem;font-weight:700;margin-bottom:12px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:0.04em}.presets-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px}.preset-card{padding:8px 10px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-secondary);font-size:0.8rem;text-align:center;font-weight:500;transition:var(--transition);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.preset-card:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}.preview-canvas-wrap{display:flex;flex-direction:column;gap:16px}.canvas-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;background:var(--bg-secondary);padding:10px 14px;border-radius:var(--radius-md);border:1px solid var(--border-color)}.canvas-bg-opts{display:flex;align-items:center;gap:8px}.bg-opt-btn{width:26px;height:26px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:var(--transition)}.bg-opt-btn.active{border-color:var(--accent);transform:scale(1.15)}.preview-viewport{min-height:380px;background-color:var(--shadow-canvas);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;padding:40px 20px;position:relative;overflow:hidden;border:1px solid var(--border-color);transition:background-color 0.3s ease}.preview-box{width:200px;height:200px;background-color:var(--box-bg);border-radius:16px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;color:var(--box-text);font-weight:700;font-size:1.1rem;text-align:center;padding:16px;transition:all 0.15s ease-out;user-select:none;word-break:break-word}.box-customizers{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}.box-cust-item{display:flex;flex-direction:column;gap:4px;font-size:0.78rem;font-weight:600;color:var(--text-muted)}.action-bar{display:flex;gap:12px;margin-top:20px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:var(--radius-md);font-weight:600;font-size:0.95rem;transition:var(--transition);text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--accent),#8b5cf6);color:#fff;box-shadow:0 6px 18px rgba(59,130,246,0.35);flex:1}.btn-primary:hover:not(:disabled){opacity:0.95;transform:translateY(-1px)}.btn-primary:disabled{opacity:0.6;cursor:not-allowed;transform:none}.btn-secondary{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--border-color)}.btn-danger{background:rgba(239,68,68,0.15);color:var(--danger);border:1px solid rgba(239,68,68,0.3)}.btn-danger:hover{background:var(--danger);color:#fff}.output-section{margin-top:30px}.output-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px;box-shadow:0 10px 30px rgba(0,0,0,0.15)}.output-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border-color)}.code-tabs{display:flex;gap:8px}.code-tab{padding:8px 16px;border-radius:var(--radius-sm);background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-secondary);font-size:0.88rem;font-weight:600;transition:var(--transition)}.code-tab.active{background:var(--accent);color:#fff;border-color:var(--accent)}.code-actions{display:flex;gap:8px}.btn-code-action{padding:8px 14px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);font-size:0.85rem;font-weight:500;display:inline-flex;align-items:center;gap:6px;transition:var(--transition)}.btn-code-action:hover{border-color:var(--accent);color:var(--accent)}.code-display-wrap{position:relative;background:#0d1117;border-radius:var(--radius-md);border:1px solid var(--border-color);padding:18px;overflow-x:auto}.code-display{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:0.92rem;color:#e6edf3;white-space:pre-wrap;word-break:break-all;line-height:1.7}.more-tools-section{padding:50px 0 30px}.section-head{text-align:center;margin-bottom:36px}.section-title{font-family:var(--font-heading);font-size:2rem;font-weight:800;letter-spacing:-0.02em;margin-bottom:10px}.section-subtitle{color:var(--text-secondary);font-size:1rem;max-width:640px;margin:0 auto}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.tool-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:16px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px;transition:var(--transition)}.tool-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,0.2)}.tool-card-title{font-size:0.95rem;font-weight:600;color:var(--text-primary)}.tool-card-icon{color:var(--accent);font-size:1.1rem}.seo-article-section{padding:50px 0;background:var(--bg-secondary);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}.article-content{max-width:860px;margin:0 auto;line-height:1.8;color:var(--text-secondary)}.article-content h2{font-family:var(--font-heading);font-size:1.85rem;color:var(--text-primary);margin:24px 0 14px}.article-content h3{font-family:var(--font-heading);font-size:1.35rem;color:var(--text-primary);margin:20px 0 10px}.article-content p{margin-bottom:16px;font-size:1.02rem}.article-content ol,.article-content ul{margin-bottom:16px;padding-left:24px}.article-content li{margin-bottom:8px}.features-section{padding:60px 0}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}.feature-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:26px;transition:var(--transition)}.feature-card:hover{border-color:var(--accent);transform:translateY(-3px)}.feature-icon{width:48px;height:48px;border-radius:var(--radius-md);background:var(--accent-light);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:18px}.feature-title{font-family:var(--font-heading);font-size:1.2rem;font-weight:700;margin-bottom:8px;color:var(--text-primary)}.feature-desc{font-size:0.92rem;color:var(--text-secondary)}.how-section{padding:50px 0;background:var(--bg-primary)}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.step-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:28px;position:relative}.step-num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#8b5cf6);color:#fff;font-weight:700;font-size:0.95rem;margin-bottom:14px}.step-title{font-family:var(--font-heading);font-size:1.15rem;font-weight:700;margin-bottom:8px}.step-desc{color:var(--text-secondary);font-size:0.92rem}.faq-section{padding:60px 0}.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}.faq-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition)}.faq-question{width:100%;padding:18px 22px;background:none;color:var(--text-primary);font-family:var(--font-heading);font-size:1.05rem;font-weight:600;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:12px}.faq-chevron{transition:transform 0.3s ease}.faq-item.active .faq-chevron{transform:rotate(180deg)}.faq-answer{padding:0 22px 18px;color:var(--text-secondary);font-size:0.95rem;line-height:1.7;display:none}.faq-item.active .faq-answer{display:block}.cta-section{padding:60px 0;text-align:center;background:linear-gradient(180deg,transparent,rgba(59,130,246,0.08))}.cta-box{max-width:800px;margin:0 auto;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:44px 30px;box-shadow:0 20px 50px rgba(0,0,0,0.2)}.cta-title{font-family:var(--font-heading);font-size:2.2rem;font-weight:800;margin-bottom:12px}.cta-desc{color:var(--text-secondary);font-size:1.05rem;margin-bottom:28px}.cta-btns{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}.footer{background:var(--bg-secondary);border-top:1px solid var(--border-color);padding:60px 0 24px;font-size:0.9rem}.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:32px;margin-bottom:40px}.footer-col-title{font-family:var(--font-heading);font-size:1.05rem;font-weight:700;color:var(--text-primary);margin-bottom:16px}.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}.footer-links a{color:var(--text-secondary)}.footer-links a:hover{color:var(--accent)}.footer-bottom{padding-top:24px;border-top:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;font-size:0.85rem;color:var(--text-muted)}.cookie-banner{position:fixed;bottom:20px;left:20px;right:20px;max-width:560px;margin:0 auto;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:18px 22px;box-shadow:0 16px 40px rgba(0,0,0,0.5);display:flex;align-items:center;justify-content:space-between;gap:16px;z-index:999;transition:transform 0.4s ease,opacity 0.4s ease}.cookie-banner.hidden{transform:translateY(120%);opacity:0;pointer-events:none}.cookie-text{font-size:0.88rem;color:var(--text-secondary)}.cookie-text a{color:var(--accent);text-decoration:underline}.cookie-actions{display:flex;align-items:center;gap:10px}.toast{position:fixed;bottom:30px;right:30px;background:var(--bg-card);color:var(--text-primary);border:1px solid var(--accent);border-radius:var(--radius-md);padding:12px 20px;box-shadow:0 12px 30px rgba(0,0,0,0.4);font-size:0.9rem;font-weight:600;display:flex;align-items:center;gap:10px;z-index:1000;opacity:0;transform:translateY(20px);pointer-events:none;transition:all 0.3s ease}.toast.show{opacity:1;transform:translateY(0);pointer-events:auto}@media (max-width:992px){.app-workspace{grid-template-columns:1fr}.steps-grid{grid-template-columns:1fr}.dropdown-menu{min-width:320px;grid-template-columns:1fr}}@media (max-width:768px){.nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg-card);border-bottom:1px solid var(--border-color);flex-direction:column;align-items:flex-start;padding:20px;gap:12px}.nav-links.active{display:flex}.dropdown-menu{position:static;transform:none;min-width:100%;box-shadow:none;border:none;padding:10px 0}.mobile-menu-btn{display:block}.control-grid{grid-template-columns:1fr}.box-customizers{grid-template-columns:1fr}.cookie-banner{flex-direction:column;align-items:flex-start}}