.toggle-wrapper{display:inline-flex;align-items:center;cursor:pointer}.toggle-input{position:absolute;opacity:0;pointer-events:none}.toggle{position:relative;width:48px;height:24px;background:var(--bg-card);border:1px solid var(--border);border-radius:24px;transition:all var(--transition-fast)}.toggle-checked{background:var(--accent);border-color:var(--accent)}.toggle-disabled{opacity:.5;cursor:not-allowed}.toggle-slider{position:absolute;top:2px;left:2px;width:18px;height:18px;background:var(--text-muted);border-radius:50%;transition:all var(--transition-fast)}.toggle-checked .toggle-slider{transform:translate(24px);background:#fff}.toggle:hover:not(.toggle-disabled){border-color:var(--accent)}.toggle-checked:hover:not(.toggle-disabled){background:var(--accent-alt);border-color:var(--accent-alt)}.sidebar{background:var(--bg-card);border-right:1px solid var(--border);width:280px;height:100vh;position:fixed;left:0;top:0;display:flex;flex-direction:column;z-index:var(--z-fixed);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:var(--shadow-card)}.sidebar-header{padding:var(--space-xl) var(--space-lg) var(--space-lg);border-bottom:1px solid var(--border);background:linear-gradient(135deg,var(--bg-card) 0%,var(--bg-secondary) 100%)}.sidebar-title{font-family:var(--font-display);font-size:1.5rem;font-weight:700;color:var(--accent);margin:0;background:linear-gradient(135deg,var(--accent),var(--accent-alt));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-subtitle{font-size:.875rem;color:var(--text-muted);margin:var(--space-xs) 0 0 0}.sidebar-nav{flex:1;padding:var(--space-lg) 0;overflow-y:auto}.sidebar-nav-list{list-style:none;margin:0;padding:0}.sidebar-nav-separator{height:1px;background:var(--border);margin:1rem 0;position:relative}.sidebar-nav-separator:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:40px;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent)}.sidebar-nav-item{margin-bottom:.25rem}.sidebar-nav-link{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-lg);color:var(--text-secondary);text-decoration:none;transition:all var(--transition-smooth);position:relative;border-radius:var(--radius-md);margin:0 var(--space-sm)}.sidebar-nav-link:hover{color:var(--text-primary);background:var(--glass);transform:translate(4px)}.sidebar-nav-link-active{color:var(--accent);background:#667eea1a;font-weight:600}.sidebar-nav-link-active:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:24px;background:linear-gradient(135deg,var(--accent),var(--accent-alt));border-radius:0 var(--radius-md) var(--radius-md) 0}.sidebar-nav-icon{font-size:1.25rem;width:24px;text-align:center;color:var(--text-muted);transition:color var(--transition-smooth)}.sidebar-nav-link:hover .sidebar-nav-icon,.sidebar-nav-link-active .sidebar-nav-icon{color:var(--accent)}.sidebar-nav-text{font-weight:500;transition:color var(--transition-smooth)}.sidebar-footer{padding:var(--space-lg);border-top:1px solid var(--border);background:var(--bg-secondary)}.sidebar-theme-toggle{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);padding:var(--space-sm);border-radius:var(--radius-md);background:var(--glass);transition:all var(--transition-smooth)}.sidebar-theme-toggle:hover{background:#667eea1a}.sidebar-theme-label{font-size:1.25rem;color:var(--text-primary);display:flex;align-items:center;gap:var(--space-sm)}body.light-theme .sidebar{box-shadow:var(--shadow-card)}body.light-theme .sidebar-header{background:linear-gradient(135deg,var(--bg-card) 0%,var(--bg-secondary) 100%)}body.light-theme .sidebar-nav-link:hover{background:var(--glass)}body.light-theme .sidebar-nav-link-active{background:#667eea1a}body.light-theme .sidebar-theme-toggle:hover{background:#667eea0d}@media(max-width:768px){.sidebar{width:100%;height:auto;position:fixed;bottom:0;left:0;top:auto;border-right:none;border-top:1px solid var(--border);z-index:var(--z-sticky);box-shadow:0 -4px 20px #0000001a}.sidebar-header{display:none}.sidebar-nav{padding:var(--space-sm) 0}.sidebar-nav-list{display:flex;overflow-x:auto;gap:var(--space-xs);padding:0 var(--space-sm)}.sidebar-nav-item{margin:0;flex-shrink:0}.sidebar-nav-link{flex-direction:column;gap:var(--space-xs);padding:var(--space-sm);min-width:60px;text-align:center;margin:0}.sidebar-nav-link-active:before{top:0;left:50%;transform:translate(-50%);width:20px;height:3px;bottom:auto;border-radius:var(--radius-md)}.sidebar-nav-text{font-size:.75rem}.sidebar-footer{display:none}}.header{background:var(--bg-secondary);border-bottom:1px solid var(--border);padding:var(--space-xl) 0;margin-bottom:var(--space-xl)}.header-content{max-width:1200px;margin:0 auto;padding:0 var(--space-md)}.header-title{font-family:var(--font-display);font-size:2.5rem;font-weight:700;color:var(--text-primary);margin:0 0 var(--space-sm) 0}.header-subtitle{font-size:1.125rem;color:var(--text-muted);margin:0;line-height:1.6}@media(max-width:768px){.header{padding:var(--space-lg) 0;margin-bottom:var(--space-lg)}.header-title{font-size:2rem}.header-subtitle{font-size:1rem}}.footer{background:var(--background-secondary);border-top:1px solid var(--border-color);padding:2rem 0;margin-top:auto}.footer-content{max-width:1200px;margin:0 auto;padding:0 2rem;text-align:center}.footer-copyright{color:var(--text-secondary);font-size:.9rem;margin-bottom:.5rem}.footer-powered{color:var(--text-secondary);font-size:.9rem;margin:0}.footer-link{color:var(--primary-color);text-decoration:none;font-weight:600;transition:color .2s ease}.footer-link:hover{color:var(--primary-hover);text-decoration:underline}@media(max-width:768px){.footer-content{padding:0 1rem}.footer-copyright,.footer-powered{font-size:.8rem}}.home-template{display:flex;min-height:100vh;background:linear-gradient(135deg,var(--bg-primary) 0%,var(--bg-secondary) 100%)}.home-template-main{margin-left:280px;flex:1;min-height:100vh;position:relative}.home-template-content{max-width:1200px;margin:0 auto;padding:0 var(--space-md) var(--space-xl);position:relative;z-index:1}body.light-theme .home-template{background:linear-gradient(135deg,var(--bg-primary) 0%,var(--bg-secondary) 100%)}@media(max-width:768px){.home-template-main{margin-left:0;margin-bottom:80px}.home-template-content{padding:0 var(--space-md) var(--space-lg)}}.tool-card{display:block;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-2xl);padding:var(--space-lg);text-decoration:none;color:var(--text-primary);transition:all var(--transition-smooth);position:relative;overflow:hidden;animation:fadeSlideIn var(--transition-smooth) ease-out both;box-shadow:var(--shadow-card)}.tool-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-alt));transform:scaleX(0);transition:transform var(--transition-smooth)}.tool-card:hover{transform:translateY(-8px);border-color:var(--accent);box-shadow:0 20px 60px #667eea26;background:var(--glass)}.tool-card:hover:before{transform:scaleX(1)}.tool-card:hover .tool-card-arrow{transform:translate(8px)}.tool-card-icon{font-size:2rem;margin-right:10px;margin-bottom:var(--space-md);display:flex;align-items:center;justify-content:center;width:50px;height:50px;background:linear-gradient(135deg,var(--accent),var(--accent-alt));border-radius:var(--radius-xl);color:#fff;transition:transform var(--transition-smooth);box-shadow:0 8px 25px #667eea4d}.tool-card:hover .tool-card-icon{transform:scale(1.1) rotate(5deg);box-shadow:0 12px 35px #667eea66}.tool-card-content{flex:1}.tool-card-title{font-family:var(--font-display);font-size:1.25rem;font-weight:600;margin:0 0 var(--space-sm) 0;color:var(--text-primary);transition:color var(--transition-smooth)}.tool-card:hover .tool-card-title{color:var(--accent)}.tool-card-description{font-size:.875rem;color:var(--text-secondary);margin:0;line-height:1.5;transition:color var(--transition-smooth)}.tool-card:hover .tool-card-description{color:var(--text-muted)}.tool-card-arrow{position:absolute;bottom:var(--space-lg);right:var(--space-lg);font-size:1.25rem;color:var(--accent);transition:transform var(--transition-smooth);opacity:0}.tool-card:hover .tool-card-arrow{opacity:1}body.light-theme .tool-card{box-shadow:var(--shadow-card)}body.light-theme .tool-card:hover{box-shadow:0 20px 60px #00000026}body.light-theme .tool-card-icon{box-shadow:0 8px 25px #667eea4d}body.light-theme .tool-card:hover .tool-card-icon{box-shadow:0 12px 35px #667eea66}@media(max-width:768px){.tool-card{padding:var(--space-md);border-radius:var(--radius-lg)}.tool-card-icon{font-size:2rem;width:48px;height:48px;margin-bottom:var(--space-sm);border-radius:var(--radius-lg)}.tool-card-title{font-size:1.125rem}.tool-card-arrow{position:static;margin-top:var(--space-md);text-align:right;opacity:1}.tool-card:hover{transform:translateY(-4px)}}.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-lg);margin-top:var(--space-xl)}.seo-content{padding:10px}.about-section{margin:var(--space-2xl) 0;padding:var(--space-xl);text-align:center;background:var(--bg-card);border-radius:var(--radius-2xl);border:1px solid var(--border)}.about-section h2{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--space-xl);font-family:var(--font-display)}.about-section p{font-size:1.125rem;color:var(--text-secondary);line-height:1.7;max-width:800px;margin:0 auto var(--space-lg)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-lg);margin-top:var(--space-xl)}.feature-item{background:var(--bg-secondary);padding:var(--space-xl);border-radius:var(--radius-lg);text-align:center;border:1px solid var(--border);transition:all var(--transition-smooth)}.feature-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--accent)}.feature-item h3{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--space-md);font-family:var(--font-display)}.feature-item p{font-size:1rem;color:var(--text-secondary);line-height:1.6;margin:0}@media(min-width:768px){.tool-grid{grid-template-columns:repeat(auto-fit,minmax(350px,1fr))}}@media(min-width:1024px){.tool-grid{grid-template-columns:repeat(auto-fit,minmax(400px,1fr))}}@media(min-width:1280px){.tool-grid{grid-template-columns:repeat(3,1fr)}}.tool-guide-accordion{background:var(--bg-card);border-radius:var(--radius-2xl);padding:2rem;box-shadow:var(--shadow-card);border:1px solid var(--border);margin:2rem 0}.guide-section{border:2px solid var(--border);border-radius:16px;overflow:hidden;margin-bottom:1rem;transition:all .3s ease}.guide-section:last-child{margin-bottom:0}.guide-section.active{border-color:var(--accent);box-shadow:0 8px 30px #667eea26}.guide-section-header{width:100%;padding:1.25rem 1.5rem;background:var(--bg-card);border:none;display:flex;align-items:center;justify-content:space-between;cursor:pointer;transition:all .3s ease;text-align:left}.guide-section-header:hover{background:var(--glass)}.guide-header-content{display:flex;align-items:center;gap:1rem}.guide-header-content svg{color:var(--accent);flex-shrink:0}.guide-header-content h3{font-size:1.2rem;font-weight:600;margin:0;color:var(--text-primary)}.guide-header-icon{color:var(--text-secondary);transition:transform .3s ease}.guide-section.active .guide-header-icon{color:var(--accent);transform:rotate(180deg)}.guide-section-content{background:var(--bg-secondary);padding:0;max-height:0;overflow:hidden;transition:all .4s cubic-bezier(.4,0,.2,1)}.guide-section.active .guide-section-content{max-height:1000px;padding:1.5rem}.how-to-steps{display:flex;flex-direction:column;gap:1.5rem}.step-item{display:flex;gap:1rem;align-items:flex-start}.step-number{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-alt));color:var(--text-primary);display:flex;align-items:center;justify-content:center;font-weight:600;flex-shrink:0;font-size:.9rem}.step-content h4{font-size:1.1rem;font-weight:600;margin:0 0 .5rem;color:var(--text-primary)}.step-content p{margin:0 0 .5rem;color:var(--text-secondary);line-height:1.6}.step-tip{background:var(--glass);border-left:3px solid var(--accent);padding:.75rem;border-radius:var(--radius-md);font-size:.9rem;color:var(--text-primary);margin-top:.5rem}.faq-items{display:flex;flex-direction:column;gap:.75rem}.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:all .3s ease}.faq-item.active{border-color:var(--accent);box-shadow:0 4px 15px #667eea26}.faq-item-header{width:100%;padding:1rem 1.25rem;background:transparent;border:none;display:flex;align-items:center;justify-content:space-between;cursor:pointer;transition:all .3s ease;text-align:left}.faq-item-header:hover{background:var(--glass)}.faq-item-header h4{font-size:1rem;font-weight:600;margin:0;color:var(--text-primary);flex:1}.faq-item-icon{color:var(--text-secondary);transition:all .3s ease;flex-shrink:0}.faq-item.active .faq-item-icon{color:var(--accent);transform:rotate(180deg)}.faq-item-content{max-height:0;overflow:hidden;transition:all .3s cubic-bezier(.4,0,.2,1);opacity:0}.faq-item-content.open{max-height:200px;opacity:1;padding:0 1.25rem 1rem}.faq-item-content p{color:var(--text-secondary);line-height:1.6;margin:0;font-size:.95rem}@media(max-width:768px){.tool-guide-accordion{padding:1.5rem;margin:1.5rem 0}.guide-section-header{padding:1rem}.guide-header-content h3{font-size:1rem}.step-number{width:28px;height:28px;font-size:.8rem}}@media(max-width:480px){.tool-guide-accordion{padding:1rem}.guide-section-header{padding:.875rem}.guide-header-content{gap:.75rem}.step-content h4{font-size:1rem}}.tool-layout{margin-left:280px;min-height:100vh;background:var(--bg-primary)}.tool-layout-container{max-width:1200px;margin:0 auto;padding:var(--space-xl) var(--space-md)}.tool-layout-nav{display:flex;gap:var(--space-md);margin-bottom:var(--space-xl);justify-content:flex-start;align-items:center}.back-to-home{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);color:var(--text-secondary);text-decoration:none;font-size:.875rem;font-weight:500;transition:all var(--transition-smooth)}.back-to-home:hover{background:var(--bg-secondary);color:var(--accent);border-color:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.back-to-home svg{transition:transform var(--transition-smooth)}.back-to-home:hover svg{transform:translate(-2px)}.tool-layout-header{margin-bottom:var(--space-2xl);text-align:center}.tool-layout-title{font-family:var(--font-display);font-size:2.5rem;font-weight:700;color:var(--text-primary);margin:0 0 var(--space-md) 0}.tool-layout-description{font-size:1.125rem;color:var(--text-muted);max-width:600px;margin:0 auto;line-height:1.6}.tool-layout-content{display:flex;flex-direction:column;gap:var(--space-xl)}@media(max-width:768px){.tool-layout{margin-left:0;margin-bottom:80px}.tool-layout-container{padding:var(--space-lg) var(--space-md)}.tool-layout-nav{margin-bottom:var(--space-lg);flex-wrap:wrap}.back-to-home{font-size:.8rem;padding:var(--space-xs) var(--space-sm)}.tool-layout-title{font-size:2rem}.tool-layout-description{font-size:1rem}.tool-layout-header{margin-bottom:var(--space-xl)}}.faq-accordion-wrapper{background:var(--bg-card);border-radius:var(--radius-2xl);padding:2.5rem;box-shadow:var(--shadow-card);border:1px solid var(--border);margin:2rem 0}.faq-header{text-align:center;margin-bottom:2rem}.faq-header h2{font-size:2rem;font-weight:600;margin-bottom:.5rem;color:var(--text-primary)}.faq-header p{color:var(--text-secondary);font-size:1rem}.faq-accordion{display:flex;flex-direction:column;gap:1rem}.faq-accordion-item{background:var(--bg-secondary);border-radius:16px;overflow:hidden;border:2px solid transparent;transition:all .3s ease;position:relative}.faq-accordion-item:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-alt));transform:scaleX(0);transition:transform .3s ease}.faq-accordion-item.active:before{transform:scaleX(1)}.faq-accordion-item.active{border-color:var(--accent);box-shadow:0 8px 30px #667eea26;transform:translateY(-2px)}.faq-accordion-header{width:100%;padding:1.5rem;background:transparent;border:none;display:flex;align-items:center;justify-content:space-between;cursor:pointer;transition:all .3s ease;text-align:left}.faq-accordion-header:hover{background:var(--glass)}.faq-accordion-header h3{font-size:1.1rem;font-weight:600;margin:0;color:var(--text-primary);flex:1;transition:color .3s ease}.faq-accordion-item.active .faq-accordion-header h3{color:var(--accent)}.faq-accordion-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--glass);color:var(--accent);transition:all .3s ease;flex-shrink:0;margin-left:1rem}.faq-accordion-item.active .faq-accordion-icon{background:linear-gradient(135deg,var(--accent),var(--accent-alt));color:var(--text-primary);transform:rotate(180deg)}.faq-accordion-content{max-height:0;overflow:hidden;transition:all .4s cubic-bezier(.4,0,.2,1);opacity:0}.faq-accordion-content.open{max-height:200px;opacity:1;padding:0 1.5rem 1.5rem}.faq-accordion-content p{color:var(--text-secondary);line-height:1.6;margin:0;font-size:1rem}.faq-accordion-item:not(.active):hover .faq-accordion-icon{transform:scale(1.1)}.faq-accordion-item:not(.active):hover{transform:translateY(-1px);box-shadow:0 4px 20px #00000014}.faq-accordion-content{transform-origin:top}.faq-accordion-content.open{animation:slideDown .4s cubic-bezier(.4,0,.2,1)}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.faq-accordion-header:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--radius-lg)}@media(max-width:768px){.faq-accordion-wrapper{padding:2rem;margin:1.5rem 0}.faq-header h2{font-size:1.5rem}.faq-accordion-header{padding:1rem}.faq-accordion-header h3{font-size:1rem}.faq-accordion-icon{width:28px;height:28px}}.tool-page-template{display:flex;min-height:100vh;background:var(--bg-primary)}.input-wrapper{display:flex;flex-direction:column;gap:var(--space-xs)}.input-label{font-size:.875rem;font-weight:500;color:var(--text-primary);display:flex;align-items:center;gap:var(--space-xs)}.input{background:var(--bg-card);border:2px solid var(--border);border-radius:var(--radius-md);padding:var(--space-sm) var(--space-md);color:var(--text-primary);font-family:var(--font-body);font-size:1rem;transition:all var(--transition-smooth);width:100%}.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #667eea1a}.input::placeholder{color:var(--text-muted)}.input-error{border-color:var(--danger)}.input-error:focus{border-color:var(--danger);box-shadow:0 0 0 3px #ff4d6d1a}.input-disabled{opacity:.5;cursor:not-allowed;background:var(--glass)}.input-error-message{font-size:.75rem;color:var(--danger);margin-top:var(--space-xs)}body.light-theme .input{background:var(--bg-card);border-color:var(--border)}body.light-theme .input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #667eea1a}body.light-theme .input::placeholder{color:var(--text-muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);border:none;border-radius:var(--radius-md);font-family:var(--font-body);font-weight:500;text-decoration:none;cursor:pointer;transition:all var(--transition-smooth);position:relative;overflow:hidden;white-space:nowrap}.btn-ghost{background:transparent;color:var(--text-primary);border:1px solid transparent}.btn-ghost:hover:not(:disabled){background:var(--glass);border-color:var(--border)}.btn-small{padding:var(--space-xs) var(--space-sm);font-size:.875rem}.btn-medium{padding:var(--space-sm) var(--space-md);font-size:1rem}.btn-large{padding:var(--space-md) var(--space-lg);font-size:1.125rem}.btn-loading{color:transparent}.btn-spinner{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:16px;height:16px;border:2px solid transparent;border-top:2px solid currentColor;border-radius:50%;animation:spin 1s linear infinite}.btn-icon{display:flex;align-items:center;justify-content:center}.btn:focus{outline:none;box-shadow:0 0 0 3px #667eea33}.btn:active{transform:translateY(0)}body.light-theme .btn-primary{box-shadow:0 4px 15px #667eea4d}body.light-theme .btn-primary:hover:not(:disabled){box-shadow:0 8px 25px #667eea66}.icon{display:inline-flex;align-items:center;justify-content:center;color:currentColor;transition:color var(--transition-fast)}.icon-small{width:16px;height:16px;font-size:16px}.icon-medium{width:20px;height:20px;font-size:20px}.icon-large{width:24px;height:24px;font-size:24px}.icon-xlarge{width:32px;height:32px;font-size:32px}.copy-button-copied{background:var(--accent)!important;color:var(--bg-primary)!important;border-color:var(--accent)!important}.copy-button-copied:hover{background:var(--accent-alt)!important;border-color:var(--accent-alt)!important}.result-box{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-lg);animation:fadeSlideIn var(--transition-normal) ease-out}.result-box-title{font-family:var(--font-display);font-size:1.25rem;font-weight:600;color:var(--text-primary);margin:0 0 var(--space-md) 0}.result-box-content{color:var(--text-primary)}.result-box-value{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);padding:var(--space-md);background:var(--bg-secondary);border-radius:var(--radius-md);border:1px solid var(--border)}.result-box-text{font-family:var(--font-mono);font-size:1rem;word-break:break-all;flex:1}.result-box:hover{border-color:var(--accent);box-shadow:0 4px 12px #00f5a01a}@media(max-width:768px){.result-box{padding:var(--space-md);margin-bottom:var(--space-md)}.result-box-title{font-size:1.125rem}.result-box-value{flex-direction:column;align-items:stretch;gap:var(--space-sm)}.result-box-text{text-align:center}}.breadcrumb{margin-bottom:24px;padding:12px 0}.breadcrumb-list{display:flex;align-items:center;flex-wrap:wrap;list-style:none;margin:0;padding:0;font-size:14px}.breadcrumb-item{display:flex;align-items:center;color:var(--text-muted)}.breadcrumb-link{display:flex;align-items:center;gap:6px;color:var(--text-muted);text-decoration:none;transition:color .3s ease;font-weight:500}.breadcrumb-link:hover{color:var(--accent-color)}.home-link{gap:4px}.breadcrumb-separator{color:var(--text-muted);margin:0 8px;opacity:.6}.breadcrumb-current{color:var(--text-primary);font-weight:600}@media(max-width:768px){.breadcrumb{margin-bottom:16px;padding:8px 0}.breadcrumb-list{font-size:13px}.breadcrumb-separator{margin:0 4px}}@media(max-width:480px){.breadcrumb-list{font-size:12px}.breadcrumb-separator{margin:0 2px}.home-link span{display:none}}.age-calculator{max-width:600px;margin:0 auto}.age-input-section{background:var(--bg-card);border:1px solid 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auto}.word-input-section{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-lg)}.word-info{display:flex;justify-content:space-between;align-items:center;margin-top:var(--space-md);padding-top:var(--space-md);border-top:1px solid var(--border)}.word-char-count{color:var(--text-muted);font-size:.875rem}.word-clear-btn{background:none;border:1px solid var(--border);color:var(--text-muted);padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);font-size:.875rem}.word-clear-btn:hover{border-color:var(--danger);color:var(--danger)}.word-results{display:flex;flex-direction:column;gap:var(--space-lg)}.word-stats{padding:var(--space-md)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:var(--space-md)}.stat-item{text-align:center;padding:var(--space-md);background:var(--bg-secondary);border-radius:var(--radius-md);border:1px solid var(--border);transition:transform var(--transition-fast)}.stat-item:hover{transform:translateY(-2px);border-color:var(--accent)}.stat-number{display:block;font-size:1.5rem;font-weight:700;color:var(--accent);font-family:var(--font-mono);margin-bottom:var(--space-xs)}.stat-label{font-size:.875rem;color:var(--text-muted);font-weight:500}.keyword-density{padding:var(--space-md)}.keyword-list{display:flex;flex-direction:column;gap:var(--space-sm)}.keyword-item{display:grid;grid-template-columns:40px 1fr auto auto;align-items:center;gap:var(--space-md);padding:var(--space-sm);background:var(--bg-secondary);border-radius:var(--radius-md);border:1px solid var(--border)}.keyword-rank{font-weight:600;color:var(--accent);font-family:var(--font-mono);text-align:center}.keyword-word{font-weight:500;color:var(--text-primary)}.keyword-count{color:var(--text-muted);font-family:var(--font-mono);text-align:right}.keyword-percentage{color:var(--accent);font-family:var(--font-mono);font-weight:600;text-align:right;min-width:50px}@media(max-width:768px){.stat-grid{grid-template-columns:repeat(2,1fr)}.keyword-item{grid-template-columns:30px 1fr 40px 40px;gap:var(--space-sm);font-size:.875rem}.word-info{flex-direction:column;gap:var(--space-sm);align-items:flex-start}.tool-guide{padding:20px 0}.guide-section h2{font-size:1.5rem}.step{gap:16px}.step-number{width:40px;height:40px;font-size:1rem}.related-tools{grid-template-columns:1fr}}.file-upload{border:2px dashed var(--border);border-radius:var(--radius-lg);padding:var(--space-xl);text-align:center;cursor:pointer;transition:all var(--transition-fast);background:var(--bg-card);position:relative;overflow:hidden}.file-upload:hover{border-color:var(--accent);background:var(--glass)}.file-upload-dragging{border-color:var(--accent);background:#00f5a01a;transform:scale(1.02)}.file-upload-input{position:absolute;width:100%;height:100%;top:0;left:0;opacity:0;cursor:pointer}.file-upload-default{display:flex;flex-direction:column;align-items:center;gap:var(--space-md)}.file-upload-icon{font-size:3rem;opacity:.6}.file-upload-text{color:var(--text-muted);margin:0;font-size:.875rem}.file-upload:hover .file-upload-text{color:var(--text-primary)}.label{font-size:.875rem;font-weight:500;color:var(--text-primary);display:inline-block;margin-bottom:var(--space-xs)}.label-required{position:relative}.label-asterisk{color:var(--danger);margin-left:var(--space-xs)}.label-disabled{color:var(--text-muted);opacity:.7}.range-slider{margin-bottom:var(--space-md)}.range-slider-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-sm)}.range-slider-value{font-size:.875rem;font-weight:500;color:var(--accent);font-family:var(--font-mono)}.range-slider-wrapper{position:relative}.range-slider-input{width:100%;height:6px;border-radius:3px;background:transparent;outline:none;-webkit-appearance:none;appearance:none;cursor:pointer;position:relative;z-index:2}.range-slider-input::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:0;height:0;background:transparent;cursor:pointer;border:none;box-shadow:none;transition:none}.range-slider-input::-webkit-slider-thumb:hover{transform:none;box-shadow:none}.range-slider-input::-moz-range-thumb{width:0;height:0;background:transparent;cursor:pointer;border:none;box-shadow:none;transition:none}.range-slider-input::-moz-range-thumb:hover{transform:none;box-shadow:none}.range-slider-track{position:absolute;top:50%;left:0;right:0;height:6px;border-radius:3px;transform:translateY(-50%);z-index:1;pointer-events:none}.spinner{display:inline-flex;align-items:center;justify-content:center}.spinner-circle{border:2px solid var(--border);border-top:2px solid var(--accent);border-radius:50%;animation:spin 1s linear infinite}.spinner-small .spinner-circle{width:16px;height:16px;border-width:1.5px}.spinner-medium .spinner-circle{width:24px;height:24px}.spinner-large .spinner-circle{width:32px;height:32px;border-width:3px}.spinner-xlarge .spinner-circle{width:48px;height:48px;border-width:4px}.image-compressor{max-width:1000px;margin:0 auto}.compressor-input-section{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-lg)}.compression-controls{margin-top:var(--space-xl);padding-top:var(--space-lg);border-top:1px solid var(--border)}.compressor-buttons{display:flex;gap:var(--space-md);margin-top:var(--space-lg)}.tool-guide{max-width:800px;margin:0 auto;padding:40px 0}.guide-section{margin-bottom:60px}.guide-section h2{color:var(--text-primary);font-size:2rem;margin-bottom:24px;font-family:Syne,sans-serif;border-bottom:2px solid var(--accent-color);padding-bottom:8px}.guide-section h3{color:var(--text-primary);font-size:1.2rem;margin-bottom:12px}.guide-section p{color:var(--text-secondary);line-height:1.7;margin-bottom:16px}.guide-steps{display:flex;flex-direction:column;gap:32px}.step{display:flex;gap:24px;align-items:flex-start}.step-content h3{color:var(--accent-color);margin-bottom:12px;font-size:1.3rem}.step-content p{color:var(--text-secondary);line-height:1.7;margin:0}.faq-list{display:flex;flex-direction:column;gap:24px}.faq-item{background:var(--secondary-bg);border:1px solid var(--border-color);border-radius:12px;padding:24px;transition:all .3s ease}.faq-item:hover{border-color:var(--accent-color);box-shadow:0 4px 12px #0000001a}.faq-item h3{color:var(--text-primary);margin-bottom:12px;font-size:1.1rem}.faq-item p{color:var(--text-secondary);line-height:1.6;margin:0}.related-tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px}.related-tool{display:block;background:var(--secondary-bg);border:1px solid var(--border-color);border-radius:12px;padding:24px;text-decoration:none;transition:all .3s ease}.related-tool:hover{border-color:var(--accent-color);transform:translateY(-4px);box-shadow:0 8px 24px #0000001a}.tool-icon{color:var(--accent-color);font-weight:600;font-size:1.1rem;margin-bottom:8px}.tool-description{color:var(--text-secondary);line-height:1.5;font-size:.9rem}@media(max-width:768px){.preview-grid{grid-template-columns:1fr}.compressor-buttons{flex-direction:column}.upload-icon{font-size:2rem}.tool-guide{padding:20px 0}.guide-section h2{font-size:1.5rem}.step{gap:16px}.step-number{width:40px;height:40px;font-size:1rem}.related-tools{grid-template-columns:1fr}}.last-updated{text-align:center;padding:24px 0;border-top:1px solid var(--border-color);margin-top:60px}@media(max-width:480px){.guide-section{margin-bottom:40px}.faq-item,.related-tool{padding:16px}}.select-dropdown{margin-bottom:var(--space-md)}.select-dropdown-input{width:100%;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--space-sm) var(--space-md);color:var(--text-primary);font-family:var(--font-body);font-size:1rem;transition:all var(--transition-fast);cursor:pointer}.select-dropdown-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #00f5a01a}.select-dropdown-input:disabled{opacity:.5;cursor:not-allowed;background:var(--glass)}.select-dropdown-input option{background:var(--bg-secondary);color:var(--text-primary)}.image-converter{max-width:1000px;margin:0 auto}.converter-input-section{background:var(--bg-card);border:1px solid 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var(--border);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-lg)}.control-section{margin-bottom:var(--space-xl)}.control-section:last-child{margin-bottom:0}.control-section h4{margin:0 0 var(--space-md) 0;color:var(--text-primary);font-family:var(--font-display)}.toggle-group{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-md)}.toggle-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-sm);background:var(--bg-secondary);border-radius:var(--radius-md);border:1px solid var(--border)}.toggle-item 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var(--danger);border-radius:var(--radius-md)}.loading-section{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl);text-align:center}.loading-section p{margin-top:var(--space-md);color:var(--text-muted)}@media(max-width:768px){.thumbnail-buttons{flex-direction:column}.thumbnail-grid{grid-template-columns:1fr}}.text-to-speech{max-width:800px;margin:0 auto}.tts-input-section{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-lg)}.tts-info{display:flex;justify-content:space-between;align-items:center;margin-top:var(--space-md);padding-top:var(--space-md);border-top:1px solid var(--border)}.clear-btn{background:none;border:1px solid var(--border);color:var(--text-muted);padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);font-size:.875rem}.clear-btn:hover{border-color:var(--danger);color:var(--danger)}.tts-controls{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-lg)}.tts-buttons{display:flex;gap:var(--space-md);flex-wrap:wrap}.tts-error{background:#ff4d6d1a;border:1px solid var(--danger);color:var(--danger);padding:var(--space-md);border-radius:var(--radius-md);margin-bottom:var(--space-lg);text-align:center}.tts-status{display:flex;align-items:center;justify-content:center;gap:var(--space-md);padding:var(--space-md);background:var(--bg-card);border:1px solid var(--accent);border-radius:var(--radius-lg);color:var(--accent);font-weight:500}.speaking-indicator{display:flex;gap:var(--space-xs)}.speaking-dot{width:8px;height:8px;background:var(--accent);border-radius:50%;animation:speakingPulse 1.4s ease-in-out infinite both}.speaking-dot:nth-child(1){animation-delay:-.32s}.speaking-dot:nth-child(2){animation-delay:-.16s}@keyframes speakingPulse{0%,80%,to{transform:scale(.8);opacity:.5}40%{transform:scale(1);opacity:1}}@media(max-width:768px){.control-grid{grid-template-columns:1fr}.tts-buttons{flex-direction:column}.tts-info{flex-direction:column;gap:var(--space-sm);align-items:flex-start}}.qr-generator{max-width:800px;margin:0 auto}.qr-input-section{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-lg)}.qr-controls{margin-top:var(--space-xl);padding-top:var(--space-lg);border-top:1px solid var(--border)}.control-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-lg);margin-bottom:var(--space-xl)}.color-controls{display:flex;flex-direction:column;gap:var(--space-md)}.color-input{display:flex;flex-direction:column;gap:var(--space-xs)}.color-input 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h2{color:var(--text-primary);margin-bottom:24px;font-family:Syne,sans-serif}.related-posts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}.related-post-card{background:var(--secondary-bg);border-radius:12px;overflow:hidden;border:1px solid var(--border-color);transition:all .3s ease}.related-post-card:hover{transform:translateY(-4px);box-shadow:0 12px 24px #00000026;border-color:var(--accent-color)}.related-post-image{height:160px;overflow:hidden}.related-post-image img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}.related-post-card:hover .related-post-image img{transform:scale(1.05)}.related-post-content{padding:20px}.related-post-content h3{margin-bottom:12px}.related-post-content h3 a,.related-post-content h3 .link{color:var(--text-primary);text-decoration:none;font-size:1.1rem;margin-bottom:8px;transition:color .3s ease}.related-post-content h3 a:hover,.related-post-content h3 .link:hover{color:var(--accent-color)}.related-post-content p{color:var(--text-muted);font-size:14px;line-height:1.5;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.related-post-meta{display:flex;gap:16px}.related-post-meta .meta-item{display:flex;align-items:center;gap:6px;color:var(--text-muted);font-size:12px}.comments-section{background:var(--secondary-bg);border-radius:16px;padding:48px;border:1px solid var(--border-color);text-align:center}.comments-section h2{color:var(--text-primary);margin-bottom:32px;font-family:Syne,sans-serif}.comments-placeholder{display:flex;flex-direction:column;align-items:center;gap:16px}.comments-icon{size:48px;color:var(--text-muted)}.comments-placeholder p{color:var(--text-muted);font-size:16px}@media(max-width:1024px){.article-content-wrapper{grid-template-columns:1fr;gap:32px}.table-of-contents{position:static;order:-1}.table-of-contents 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h2{color:var(--text-primary);font-size:2rem;margin-bottom:32px;text-align:center;font-family:Syne,sans-serif}.category-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.category-btn{display:flex;align-items:center;gap:12px;padding:16px 20px;border:2px solid var(--border-color);border-radius:12px;background:var(--secondary-bg);color:var(--text-primary);font-size:.95rem;font-weight:600;cursor:pointer;transition:all .3s ease}.category-btn:hover{border-color:var(--accent-color);transform:translateY(-2px);box-shadow:0 4px 12px #667eea26}.category-btn.active{background:var(--accent-color);color:#fff;border-color:var(--accent-color)}.category-icon{size:20px;flex-shrink:0}.faq-content,.faq-category{margin-bottom:48px}.category-title{display:flex;align-items:center;gap:12px;color:var(--text-primary);font-size:1.5rem;font-weight:600;margin-bottom:24px;font-family:Syne,sans-serif}.category-title .category-icon{size:24px}.faq-list{display:flex;flex-direction:column;gap:16px}.faq-item{border:1px solid var(--border-color);border-radius:12px;overflow:hidden;background:var(--secondary-bg);transition:all .3s ease}.faq-item:hover{border-color:var(--accent-color);box-shadow:0 4px 12px #667eea1a}.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:20px 24px;background:transparent;border:none;color:var(--text-primary);font-size:1rem;font-weight:600;text-align:left;cursor:pointer;transition:all .3s ease}.faq-question:hover{background:var(--primary-bg)}.faq-question.expanded{background:var(--accent-color);color:#fff}.faq-question span{flex:1;line-height:1.5}.faq-answer{padding:0 24px 20px;border-top:1px solid var(--border-color);background:var(--primary-bg)}.faq-answer p{color:var(--text-secondary);line-height:1.6;margin:0}.no-results{text-align:center;padding:80px 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h3{font-size:1.8rem;margin-bottom:12px;font-family:Syne,sans-serif}.help-content p{font-size:1.1rem;opacity:.9;margin-bottom:32px}.help-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.help-btn{display:inline-block;padding:12px 24px;border-radius:8px;text-decoration:none;font-weight:600;transition:all .3s ease}.help-btn.primary{background:var(--primary-bg);color:#fff}.help-btn.primary:hover{background:var(--accent-color);transform:translateY(-2px)}.help-btn.secondary{background:#fff3;color:#fff;border:1px solid rgba(255,255,255,.3)}.help-btn.secondary:hover{background:#ffffff4d;transform:translateY(-2px)}@media(max-width:768px){.faq-page{padding:0 16px}.faq-hero{padding:40px 20px}.faq-hero h1{font-size:2rem}.hero-description{font-size:1rem}.category-grid{grid-template-columns:1fr;gap:12px}.category-btn{padding:14px 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h2{color:var(--text-primary);font-size:2rem;margin-bottom:32px;text-align:center;font-family:Syne,sans-serif}.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}.tool-card{display:flex;align-items:center;justify-content:space-between;background:var(--secondary-bg);border:1px solid var(--border-color);border-radius:12px;padding:24px;text-decoration:none;color:var(--text-primary);transition:all .3s ease}.tool-card:hover{border-color:var(--accent-color);transform:translateY(-4px);box-shadow:0 8px 24px #0000001a}.tool-info h3{margin-bottom:8px;font-size:1.1rem}.tool-info p{color:var(--text-muted);font-size:.9rem;margin:0}.tool-arrow{color:var(--accent-color);size:20px;transition:transform .3s ease}.tool-card:hover .tool-arrow{transform:translate(4px)}.help-categories{margin-bottom:60px}.help-categories 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p{color:var(--text-secondary);line-height:1.6;margin:0;font-size:.9rem}.troubleshooting{margin-bottom:60px}.troubleshooting h2{color:var(--text-primary);font-size:2rem;margin-bottom:32px;text-align:center;font-family:Syne,sans-serif}.troubleshooting-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}.trouble-item{display:flex;gap:16px;align-items:flex-start;background:var(--secondary-bg);border:1px solid var(--border-color);border-radius:12px;padding:24px;transition:all .3s ease}.trouble-item:hover{border-color:var(--accent-color);transform:translateY(-2px)}.trouble-icon{width:32px;height:32px;background:var(--accent-color);color:var(--primary-bg);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}.trouble-content h3{color:var(--text-primary);margin-bottom:8px;font-size:1.1rem}.trouble-content p{color:var(--text-secondary);line-height:1.6;margin:0;font-size:.9rem}.contact-support{background:linear-gradient(135deg,var(--accent-color) 0%,var(--accent-alt-color) 100%);border-radius:16px;padding:48px;text-align:center;margin-bottom:60px;color:#fff}.support-icon{size:64px;margin-bottom:24px}.contact-support h2{font-size:2rem;margin-bottom:16px;font-family:Syne,sans-serif}.contact-support p{margin-bottom:32px;opacity:.9;max-width:600px;margin-left:auto;margin-right:auto}.support-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.support-btn{display:flex;align-items:center;gap:8px;padding:12px 24px;border-radius:8px;text-decoration:none;font-weight:600;transition:all .3s ease}.support-btn.primary{background:var(--primary-bg);color:#fff}.support-btn.primary:hover{background:var(--accent-color);transform:translateY(-2px)}.support-btn.secondary{background:#fff3;color:#fff;border:1px solid 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var(--transition-smooth);box-shadow:var(--shadow-card);position:relative;overflow:hidden}.card-elevated:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-alt));transform:scaleX(0);transition:transform var(--transition-smooth)}.card-elevated:hover:before{transform:scaleX(1)}.card-elevated:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl)}body.light-theme .card,body.light-theme .card-elevated{box-shadow:var(--shadow-card)}body.light-theme .card:hover,body.light-theme .card-elevated:hover{box-shadow:0 20px 60px #00000026}@media(max-width:768px){.mobile-hidden{display:none}.mobile-block{display:block}.mobile-flex{display:flex}.card,.card-elevated{padding:var(--space-md);border-radius:var(--radius-lg)}}@media(min-width:769px){.desktop-hidden{display:none}.desktop-block{display:block}.desktop-flex{display:flex}}