.user-guide-section{margin-bottom:25px;background-color:#fff;border-radius:12px;box-shadow:0 4px 12px rgba(0,0,0,.05);overflow:hidden}.user-guide-header{background-color:var(--current-accent);color:#fff;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:all .2s ease;user-select:none}.user-guide-header:hover{background-color:var(--current-accent);opacity:.9}.user-guide-header h2{margin:0;font-size:1.3rem;font-weight:700;font-family:SF Pro Display,SF Pro,Helvetica Neue,SimHei,-apple-system,BlinkMacSystemFont,sans-serif;letter-spacing:-.02em;color:#fff}.user-guide-icon{font-size:1.2rem;transition:transform .3s ease;color:#fff}.user-guide-icon.expanded{transform:rotate(180deg)}.user-guide-content{max-height:0;overflow:hidden;transition:max-height .3s ease}.user-guide-content.expanded{max-height:3000px}.user-guide-inner{padding:20px}.guide-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;margin-bottom:25px}.guide-card{background-color:#f9f9fb;border-radius:8px;padding:20px;border-left:4px solid var(--current-accent)}.guide-card h3{color:#1d1d1f;font-size:1.1rem;margin-bottom:10px;font-weight:600}.guide-card p{color:#555;margin-bottom:10px;line-height:1.6}.guide-card ul{list-style:none;padding:0;margin:0}.guide-card li{color:#555;margin-bottom:8px;padding-left:20px;position:relative;line-height:1.5}.guide-card li:before{content:"✓";position:absolute;left:0;color:var(--current-accent);font-weight:700}.features-grid{gap:20px;margin-bottom:25px}.feature-item{background-color:#f9f9fb;padding:20px;gap:15px;transition:transform .2s ease}.feature-icon{font-size:2rem}.feature-content h4{margin-bottom:8px}.tips-section{border-radius:8px;margin-bottom:25px}.tips-section h3{font-size:1.1rem;margin-bottom:15px}.tips-section ul{list-style:none;padding:0;margin:0}.tips-section li{color:#856404;margin-bottom:10px;padding-left:25px;position:relative;line-height:1.5}.tips-section li:before{content:"💡";position:absolute;left:0}.seo-content{background-color:#f9f9fb;border-radius:8px;padding:20px}.seo-content h3{color:#1d1d1f;font-size:1.1rem;margin-bottom:15px;font-weight:600}.seo-content p{color:#555;line-height:1.6;margin-bottom:15px}.seo-content strong{color:var(--current-accent);font-weight:600}@media (max-width:768px){.features-grid,.guide-content{grid-template-columns:1fr}}@media (max-width:480px){.features-grid,.guide-content{grid-template-columns:1fr;gap:15px}.feature-item{flex-direction:column;text-align:center}.user-guide-header{padding:12px 15px}.user-guide-header h2{font-size:1.1rem}.guide-card,.seo-content,.tips-section,.user-guide-inner{padding:15px}}.user-guide-section[data-theme=green] .user-guide-header{background-color:#c4ff8c;color:#1d1d1f}.user-guide-section[data-theme=green] .user-guide-header h2,.user-guide-section[data-theme=green] .user-guide-icon{color:#1d1d1f}.user-guide-section[data-theme=green] .guide-card{border-left-color:#c4ff8c}.user-guide-section[data-theme=green] .guide-card li:before,.user-guide-section[data-theme=green] .seo-content strong{color:#c4ff8c}.user-guide-header{position:relative;overflow:hidden}.user-guide-header:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,hsla(0,0%,100%,.1),transparent);transition:left .5s}.user-guide-header:hover:before{left:100%}.guide-card{transition:all .3s ease}.guide-card:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.1)}.feature-item{position:relative;overflow:hidden}.feature-item:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(0,113,227,.05),transparent);transition:left .5s}.feature-item:hover:before{left:100%}.user-guide-header:focus{outline:2px solid var(--current-accent);outline-offset:2px}.user-guide-header[aria-expanded=true] .user-guide-icon{transform:rotate(180deg)}@media print{.user-guide-section{box-shadow:none;border:1px solid #ddd}.user-guide-header{background-color:#f5f5f5!important;color:#333!important}.user-guide-content{max-height:none!important;overflow:visible!important}.user-guide-icon{display:none}}.guide-section{margin-bottom:25px;background-color:#fff;border-radius:12px;padding:20px;box-shadow:0 4px 12px rgba(0,0,0,.05)}.guide-section h3{color:#1d1d1f;margin:0 0 15px;font-size:1.3rem;font-weight:700;font-family:SF Pro Display,SF Pro,Helvetica Neue,SimHei,-apple-system,BlinkMacSystemFont,sans-serif;letter-spacing:-.02em}.guide-steps{list-style:none;padding:0;margin:0}.guide-steps li{color:#555;margin-bottom:10px;padding-left:25px;position:relative;line-height:1.6}.guide-steps li:before{content:"✓";position:absolute;left:0;color:var(--current-accent);font-weight:700;font-size:1.1rem}.features-section{margin-bottom:25px;background-color:#f9f9fb;border-radius:12px;padding:20px;box-shadow:0 4px 12px rgba(0,0,0,.05)}.features-section h3{color:#1d1d1f;margin:0 0 20px;font-size:1.3rem;font-weight:700;font-family:SF Pro Display,SF Pro,Helvetica Neue,SimHei,-apple-system,BlinkMacSystemFont,sans-serif;letter-spacing:-.02em}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:15px}.feature-item{background-color:#fff;border-radius:8px;padding:15px;display:flex;gap:12px;transition:transform .2s ease,box-shadow .2s ease;box-shadow:0 2px 6px rgba(0,0,0,.05)}.feature-item:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,0,0,.1)}.feature-icon{font-size:1.8rem;flex-shrink:0;line-height:1}.feature-content h4{color:#1d1d1f;font-size:1rem;margin:0 0 8px;font-weight:600}.feature-content p{color:#555;font-size:.9rem;line-height:1.5;margin:0}.tips-section{background-color:#fff3cd;border-radius:12px;padding:20px;border-left:4px solid #ffc107;box-shadow:0 4px 12px rgba(0,0,0,.05)}.tips-section h3{color:#856404;font-size:1.2rem;margin:0 0 15px;font-weight:600}.tips-list{list-style:none;padding:0;margin:0}.tips-list li{color:#856404;margin-bottom:12px;padding-left:25px;position:relative;line-height:1.6}.tips-list li:before{content:"💡";position:absolute;left:0;font-size:1rem}.about-section{margin-top:25px;background-color:#f9f9fb;border-radius:12px;padding:20px;box-shadow:0 4px 12px rgba(0,0,0,.05)}.about-section h3{color:#1d1d1f;font-size:1.3rem;margin:0 0 15px;font-weight:700;font-family:SF Pro Display,SF Pro,Helvetica Neue,SimHei,-apple-system,BlinkMacSystemFont,sans-serif;letter-spacing:-.02em}.about-section h4{color:#1d1d1f;font-size:1.1rem;margin:20px 0 10px;font-weight:600}.about-section p{color:#555;line-height:1.6;margin-bottom:15px}.about-section strong{color:var(--current-accent);font-weight:600}.use-cases{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px;margin-top:15px}.use-case-item{background-color:#fff;border-radius:8px;padding:12px 15px;border-left:3px solid var(--current-accent);box-shadow:0 2px 6px rgba(0,0,0,.05);transition:transform .2s ease}.use-case-item:hover{transform:translateX(3px)}.use-case-item strong{color:#1d1d1f;font-size:.95rem;line-height:1.5}@media (max-width:768px){.features-grid{grid-template-columns:1fr;gap:12px}.feature-item{flex-direction:column;text-align:center;gap:8px}.use-cases{grid-template-columns:1fr;gap:10px}}@media (max-width:480px){.about-section,.features-section,.guide-section,.tips-section{padding:15px;margin-bottom:20px}.about-section h3,.features-section h3,.guide-section h3{font-size:1.1rem}}.showcase-image{margin:30px 0;text-align:center;background-color:#f9f9fb;border-radius:12px;padding:20px;box-shadow:0 4px 12px rgba(0,0,0,.05)}.demo-image{max-width:100%;height:auto;border-radius:8px;box-shadow:0 6px 20px rgba(0,0,0,.1);transition:transform .3s ease,box-shadow .3s ease}.demo-image:hover{transform:scale(1.02);box-shadow:0 8px 25px rgba(0,0,0,.15)}@media (max-width:768px){.showcase-image{margin:20px 0;padding:15px}}@media (max-width:480px){.showcase-image{margin:15px 0;padding:10px}}