:root{--color-primary: #0066b8;--color-primary-hover: #005a9e;--color-primary-light: #e8f4fc;--color-secondary: #5c90d1;--color-accent: #0066b8;--color-highlight: #0066b8;--color-text-primary: #1e1e1e;--color-text-secondary: #5a5a5a;--color-text-tertiary: #8a8a8a;--color-text-muted: #b0b0b0;--color-bg-primary: #ffffff;--color-bg-secondary: #f8f9fa;--color-bg-tertiary: #f0f2f5;--color-bg-card: #ffffff;--color-bg-hover: #f5f7fa;--color-border: #e2e5e9;--color-border-light: #e8ebef;--color-border-focus: #0066b8;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px rgba(0, 0, 0, .04), 0 1px 3px rgba(0, 0, 0, .03);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .06), 0 4px 10px rgba(0, 0, 0, .03);--shadow-xl: 0 20px 40px rgba(0, 0, 0, .08), 0 8px 20px rgba(0, 0, 0, .04);--spacing-xs: .375rem;--spacing-sm: .75rem;--spacing-md: 1.5rem;--spacing-lg: 2.5rem;--spacing-xl: 4rem;--font-family-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Helvetica Neue", sans-serif;--font-family-heading: "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;--radius-sm: 2px;--radius-md: 4px;--radius-lg: 6px;--radius-xl: 8px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-family-primary);background-color:var(--color-bg-secondary);color:var(--color-text-primary);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}h1,h2,h3,h4,h5,h6{font-family:var(--font-family-heading);font-weight:600;margin-bottom:var(--spacing-sm);color:var(--color-text-primary);line-height:1.3}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-hover)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.5rem 1rem;border:none;border-radius:var(--radius-sm);font-family:var(--font-family-primary);font-size:.8125rem;font-weight:500;cursor:pointer;transition:all var(--transition-normal);text-decoration:none;white-space:nowrap}.btn-primary{background-color:var(--color-primary);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover{background-color:var(--color-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-xs)}.btn-secondary{background-color:var(--color-bg-primary);color:var(--color-text-primary);border:1px solid var(--color-border);box-shadow:var(--shadow-xs)}.btn-secondary:hover{background-color:var(--color-bg-hover);border-color:var(--color-primary);color:var(--color-primary)}.btn-secondary:active{background-color:var(--color-bg-tertiary)}.header{position:fixed;top:0;left:0;right:0;z-index:1000;background-color:#fffffff2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:.75rem 0;border-bottom:1px solid var(--color-border-light);box-shadow:var(--shadow-xs)}.nav{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.brand-title{font-size:1.125rem;font-weight:600;color:var(--color-text-primary);letter-spacing:-.02em}.brand-highlight{color:var(--color-primary)}.nav-menu{display:flex;align-items:center;list-style:none;gap:2rem}.nav-link{color:var(--color-text-secondary);font-weight:500;font-size:.875rem;padding:.5rem 0;position:relative;transition:color var(--transition-fast)}.nav-link:after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background-color:var(--color-primary);transition:width var(--transition-normal)}.nav-link:hover{color:var(--color-primary)}.nav-link:hover:after{width:100%}.nav-actions{display:flex;align-items:center;gap:1rem}.nav-toggle{display:none;flex-direction:column;background:none;border:none;cursor:pointer;padding:.5rem;gap:4px}.language-switcher{position:relative}.current-language{display:flex;align-items:center;gap:.375rem;padding:.375rem .625rem;background-color:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);color:var(--color-text-secondary);font-size:.8125rem}.current-language:hover{background-color:var(--color-bg-hover);border-color:var(--color-border);color:var(--color-text-primary)}.flag{font-size:.875rem}.name{font-weight:500}.arrow{color:var(--color-text-tertiary);font-size:.625rem;transition:transform var(--transition-fast)}.language-switcher:hover .arrow{transform:translateY(1px)}.language-dropdown{position:absolute;top:calc(100% + 4px);right:0;background-color:var(--color-bg-card);border:1px solid var(--color-border-light);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(-4px);transition:all var(--transition-fast);z-index:1001;min-width:7.5rem;overflow:hidden}.language-switcher:hover .language-dropdown{opacity:1;visibility:visible;transform:translateY(0)}.language-option{display:flex;align-items:center;gap:.375rem;width:100%;padding:.625rem .75rem;background:none;border:none;text-align:left;cursor:pointer;transition:background-color var(--transition-fast);color:var(--color-text-secondary);font-size:.8125rem}.language-option:hover{background-color:var(--color-bg-secondary);color:var(--color-text-primary)}.language-option.active{background-color:var(--color-primary-light);color:var(--color-primary)}.language-option:first-child{border-radius:var(--radius-md) var(--radius-md) 0 0}.language-option:last-child{border-radius:0 0 var(--radius-md) var(--radius-md)}.nav-toggle span{width:1.25rem;height:2px;background-color:var(--color-text-primary);border-radius:1px;transition:var(--transition-fast)}.hero{min-height:100vh;display:flex;align-items:center;padding:calc(3rem + 60px) 0 3rem}.hero-content{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md);display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-xl);align-items:center}.hero-title{font-size:2.5rem;font-weight:700;line-height:1.2;margin-bottom:.75rem;letter-spacing:-.02em;color:var(--color-text-primary)}.hero-subtitle{font-size:1.125rem;color:var(--color-primary);margin-bottom:1.25rem;font-weight:500}.hero-description{font-size:1rem;color:var(--color-text-secondary);margin-bottom:1.75rem;line-height:1.7}.hero-actions{display:flex;gap:.75rem}.memory-lane-preview{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;perspective:1000px}.preview-card{background:var(--color-bg-card);border-radius:var(--radius-sm);padding:.875rem;box-shadow:var(--shadow-md);border:1px solid var(--color-border-light);transform-style:preserve-3d;transition:transform var(--transition-normal),box-shadow var(--transition-normal)}.preview-image{width:100%;height:80px;background:linear-gradient(135deg,#f0f2f5,#e8ebef);border-radius:var(--radius-sm);margin-bottom:.625rem}.preview-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.preview-image{width:100%;height:100px;background:linear-gradient(135deg,#f0f2f5,#e8ebef);border-radius:var(--radius-md);margin-bottom:.75rem}.preview-content h4{color:var(--color-text-primary);margin-bottom:.25rem;font-size:.875rem;font-weight:600}.preview-content p{color:var(--color-text-muted);font-size:.75rem}.preview-card-1{transform:translateZ(8px)}.preview-card-2{transform:translateZ(0)}.preview-card-3{transform:translateZ(-8px)}.features{padding:4rem 0;background-color:var(--color-bg-secondary)}.section-header{text-align:center;margin-bottom:3rem}.section-title{font-size:2rem;font-weight:700;margin-bottom:.5rem;color:var(--color-text-primary);letter-spacing:-.01em}.section-subtitle{font-size:1rem;color:var(--color-text-tertiary)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.feature-card{background-color:var(--color-bg-card);padding:1.25rem;border-radius:var(--radius-sm);text-align:center;border:1px solid var(--color-border-light);transition:transform var(--transition-normal),box-shadow var(--transition-normal)}.browser-mockup{background-color:var(--color-bg-card);border-radius:var(--radius-sm);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--color-border-light)}.timeline-image{width:36px;height:24px;border-radius:var(--radius-sm);background:linear-gradient(135deg,#e8e8e8,#d0d0d0)}.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.feature-icon{color:var(--color-primary);margin-bottom:1rem;display:flex;justify-content:center;opacity:.9}.feature-title{font-size:1rem;margin-bottom:.5rem;color:var(--color-text-primary);font-weight:600}.feature-description{color:var(--color-text-tertiary);line-height:1.6;font-size:.875rem}.product-showcase{padding:4rem 0}.showcase-content{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-xl);align-items:center;max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.showcase-title{font-size:1.75rem;font-weight:700;margin-bottom:1rem;color:var(--color-text-primary);letter-spacing:-.01em}.showcase-description{font-size:.9375rem;color:var(--color-text-secondary);margin-bottom:1.5rem;line-height:1.7}.showcase-features{list-style:none;margin-bottom:1.5rem}.showcase-features li{color:var(--color-text-primary);position:relative;padding:.5rem 0 .5rem 1.5rem;font-size:.9375rem}.showcase-features li:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:6px;height:6px;border-radius:50%;background-color:var(--color-primary)}.browser-mockup{background-color:var(--color-bg-card);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--color-border-light)}.browser-header{background-color:var(--color-bg-secondary);padding:.75rem 1rem;display:flex;align-items:center;gap:.5rem;border-bottom:1px solid var(--color-border-light)}.browser-dots{display:flex;gap:6px}.browser-dots span{width:10px;height:10px;border-radius:50%;background-color:var(--color-border)}.browser-dots span:nth-child(1){background-color:#ff5f57}.browser-dots span:nth-child(2){background-color:#ffbd2e}.browser-dots span:nth-child(3){background-color:#28ca42}.browser-title{color:var(--color-text-tertiary);font-size:.75rem;margin-left:.5rem}.browser-content{padding:1rem}.memory-timeline{display:flex;flex-direction:column;gap:1rem}.timeline-item{padding-left:1.5rem;position:relative;border-left:2px solid var(--color-primary-light)}.timeline-item:before{content:"";position:absolute;left:-5px;top:.25rem;width:8px;height:8px;border-radius:50%;background-color:var(--color-primary);border:2px solid var(--color-bg-card)}.timeline-date{font-weight:600;color:var(--color-primary);margin-bottom:.25rem;font-size:.8125rem}.timeline-text{color:var(--color-text-tertiary);font-style:italic;font-size:.875rem}.timeline-images{display:flex;gap:.5rem;margin-top:.75rem}.timeline-image{width:40px;height:28px;border-radius:var(--radius-sm);background:linear-gradient(135deg,#e8ebef,#d5d9e0)}.timeline-image-1{background:linear-gradient(135deg,#e8e8f0,#d0d0e0)}.timeline-image-2{background:linear-gradient(135deg,#f0e8f0,#e0d0e0)}.timeline-image-3{background:linear-gradient(135deg,#e8f0e8,#d0e0d0)}.timeline-image-4{background:linear-gradient(135deg,#f0f0e8,#e0e0d0)}.about{padding:4rem 0;background-color:var(--color-bg-secondary)}.about-content{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.about-title{font-size:1.75rem;font-weight:700;margin-bottom:1rem;color:var(--color-text-primary)}.about-description{font-size:.9375rem;color:var(--color-text-secondary);margin-bottom:2rem;line-height:1.75;max-width:48rem}.brand-values{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1.5rem}.value-item{text-align:center;padding:1rem;background-color:var(--color-bg-card);border-radius:var(--radius-sm);border:1px solid var(--color-border-light)}.upload-area{border:2px dashed var(--color-border);border-radius:var(--radius-sm);padding:1.5rem;text-align:center;cursor:pointer;transition:all var(--transition-normal);background-color:var(--color-bg-secondary)}.image-item{display:flex;align-items:center;gap:.5rem;background-color:var(--color-bg-secondary);padding:.375rem;border-radius:var(--radius-sm);border:1px solid var(--color-border-light)}.thumbnail{width:36px;height:36px;object-fit:cover;border-radius:var(--radius-sm)}.value-item h4{color:var(--color-primary);margin-bottom:.375rem;font-size:.9375rem}.value-item p{color:var(--color-text-tertiary);font-size:.8125rem}.footer{background-color:var(--color-bg-primary);padding:3rem 0 1.5rem;border-top:1px solid var(--color-border-light)}.footer-content{display:grid;grid-template-columns:1fr 2fr;gap:var(--spacing-xl);margin-bottom:2rem;max-width:1200px;margin:0 auto var(--spacing-lg);padding:0 var(--spacing-md)}.footer-brand{max-width:200px}.footer-title{font-size:1rem;color:var(--color-text-primary);margin-bottom:.25rem;font-weight:600}.footer-slogan{color:var(--color-primary);font-style:italic;font-size:.8125rem}.footer-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1.5rem}.footer-column h5{color:var(--color-text-primary);margin-bottom:.75rem;font-weight:600;font-size:.875rem}.footer-column ul{list-style:none}.footer-column li{margin-bottom:.5rem}.footer-column a{color:var(--color-text-tertiary);font-size:.8125rem;transition:color var(--transition-fast)}.footer-column a:hover{color:var(--color-primary)}.footer-bottom{text-align:center;padding-top:1.5rem;border-top:1px solid var(--color-border-light);color:var(--color-text-muted);font-size:.8125rem;max-width:1200px;margin:0 auto;padding-left:var(--spacing-md);padding-right:var(--spacing-md)}.photo-upload{width:100%}.upload-area{border:2px dashed var(--color-border);border-radius:var(--radius-lg);padding:2rem;text-align:center;cursor:pointer;transition:all var(--transition-normal);background-color:var(--color-bg-secondary)}.upload-area:hover,.upload-area.dragging{border-color:var(--color-primary);background-color:var(--color-primary-light)}.upload-area svg{color:var(--color-primary);margin-bottom:.75rem;opacity:.8}.upload-area p{color:var(--color-text-primary);margin-bottom:.25rem;font-size:.9375rem}.upload-hint{color:var(--color-text-muted)!important;font-size:.8125rem!important}.selected-images{margin-top:1.5rem}.image-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.75rem;margin-top:1rem}.image-item{display:flex;align-items:center;gap:.625rem;background-color:var(--color-bg-secondary);padding:.5rem;border-radius:var(--radius-md);border:1px solid var(--color-border-light)}.thumbnail{width:40px;height:40px;object-fit:cover;border-radius:var(--radius-sm)}.image-info{flex:1;min-width:0}.file-name{color:var(--color-text-primary);font-weight:500;margin-bottom:2px;font-size:.8125rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-size{color:var(--color-text-muted);font-size:.75rem}.remove-btn{background-color:transparent;color:var(--color-text-tertiary);border:1px solid var(--color-border);border-radius:50%;width:1.25rem;height:1.25rem;cursor:pointer;font-size:.75rem;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);flex-shrink:0}.remove-btn:hover{background-color:var(--color-accent);color:#fff;border-color:var(--color-accent)}.photo-page{min-height:100vh;padding-top:60px;background-color:var(--color-bg-secondary)}.photo-layout{display:grid;grid-template-columns:1fr 1fr;height:calc(100vh - 60px);gap:1rem;padding:1rem;max-width:1400px;margin:0 auto}.left-panel{background-color:var(--color-bg-card);border-radius:var(--radius-sm);padding:1.25rem;overflow-y:auto;display:flex;flex-direction:column;gap:1.25rem;border:1px solid var(--color-border-light);box-shadow:var(--shadow-sm)}.right-panel{background-color:var(--color-bg-card);border-radius:var(--radius-sm);overflow:hidden;position:relative;border:1px solid var(--color-border-light);box-shadow:var(--shadow-sm)}.map-control-btn{background-color:#fffffff2;color:var(--color-text-primary);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:.375rem .75rem;font-size:.75rem;cursor:pointer;transition:all var(--transition-fast);box-shadow:var(--shadow-xs);font-weight:500}.photo-thumbnail{position:relative;aspect-ratio:1;border-radius:var(--radius-sm);overflow:hidden;background-color:var(--color-bg-tertiary);border:1px solid var(--color-border-light);transition:transform var(--transition-fast)}.more-photos{display:flex;align-items:center;justify-content:center;background-color:var(--color-bg-tertiary);border-radius:var(--radius-sm);color:var(--color-text-tertiary);font-size:.75rem;font-weight:500}.result-summary{text-align:left;background-color:var(--color-bg-secondary);padding:.875rem;border-radius:var(--radius-sm);width:100%;border:1px solid var(--color-border-light)}.right-panel{background-color:var(--color-bg-card);border-radius:var(--radius-lg);overflow:hidden;position:relative;border:1px solid var(--color-border-light);box-shadow:var(--shadow-sm)}.map-container{width:100%;height:100%;position:relative}.map-controls{position:absolute;top:.75rem;right:.75rem;display:flex;flex-direction:column;gap:.5rem;z-index:10}.map-control-btn{background-color:#fffffff2;color:var(--color-text-primary);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:.5rem .875rem;font-size:.8125rem;cursor:pointer;transition:all var(--transition-fast);box-shadow:var(--shadow-xs);font-weight:500}.map-control-btn:hover{background-color:var(--color-primary);color:#fff;border-color:var(--color-primary)}.map-control-btn:disabled{opacity:.5;cursor:not-allowed}.page-header{position:fixed;top:0;left:0;right:0;background-color:#fffffff2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:1rem 1.5rem;display:flex;align-items:center;gap:1rem;z-index:1000;border-bottom:1px solid var(--color-border-light);box-shadow:var(--shadow-xs)}.page-header h1{margin:0;color:var(--color-text-primary);font-size:1.125rem;font-weight:600}.photo-list{margin-top:auto}.photo-list h4{color:var(--color-text-primary);margin-bottom:.75rem;font-size:.9375rem;font-weight:600}.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem}.photo-thumbnail{position:relative;aspect-ratio:1;border-radius:var(--radius-md);overflow:hidden;background-color:var(--color-bg-tertiary);border:1px solid var(--color-border-light);transition:transform var(--transition-fast)}.photo-thumbnail:hover{transform:scale(1.02)}.photo-thumbnail img{width:100%;height:100%;object-fit:cover}.photo-indicator{position:absolute;top:.375rem;right:.375rem;background-color:#fffffff2;color:var(--color-primary);border-radius:50%;width:1.125rem;height:1.125rem;display:flex;align-items:center;justify-content:center;font-size:.625rem;box-shadow:var(--shadow-xs)}.more-photos{display:flex;align-items:center;justify-content:center;background-color:var(--color-bg-tertiary);border-radius:var(--radius-md);color:var(--color-text-tertiary);font-size:.75rem;font-weight:500}.step-description{color:var(--color-text-secondary);margin-bottom:1.25rem;line-height:1.6;font-size:.9375rem}.upload-actions{display:flex;flex-direction:column;gap:.625rem}.photos-count{color:var(--color-text-primary);font-weight:500;font-size:.875rem}.markers-count{color:var(--color-primary);font-size:.8125rem}.processing-step{text-align:center;display:flex;flex-direction:column;align-items:center;gap:1rem;padding:2rem 0}.spinner{width:2.25rem;height:2.25rem;border:3px solid var(--color-border);border-top:3px solid var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.processing-hint{color:var(--color-text-muted);font-size:.8125rem}.result-step{text-align:center;display:flex;flex-direction:column;align-items:center;gap:1rem;padding:2rem 0}.success-icon{width:3rem;height:3rem;background-color:var(--color-primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:700}.result-summary{text-align:left;background-color:var(--color-bg-secondary);padding:1rem;border-radius:var(--radius-md);width:100%;border:1px solid var(--color-border-light)}.result-summary p{margin-bottom:.375rem;color:var(--color-text-primary);font-size:.875rem}.result-actions{display:flex;gap:.625rem;justify-content:center}.amap-container{width:100%;height:100%}@media (max-width: 1024px){.hero-content{gap:2rem}.hero-title{font-size:2rem}.showcase-content{gap:2rem}}@media (max-width: 768px){.nav-menu{position:fixed;top:52px;left:-100%;width:100%;height:calc(100vh - 52px);background-color:var(--color-bg-primary);flex-direction:column;justify-content:flex-start;align-items:center;padding-top:1.5rem;transition:left var(--transition-normal);border-top:1px solid var(--color-border-light)}.nav-menu.active{left:0}.nav-toggle{display:flex}.hero-content{grid-template-columns:1fr;text-align:center}.hero-title{font-size:1.75rem}.hero-actions{justify-content:center;flex-wrap:wrap}.memory-lane-preview{grid-template-columns:1fr;gap:1rem;margin-top:1.5rem}.preview-card-1,.preview-card-2,.preview-card-3{transform:none}.features-grid{grid-template-columns:1fr}.showcase-content{grid-template-columns:1fr;text-align:center}.browser-mockup{margin-top:1.5rem}.footer-content{grid-template-columns:1fr;text-align:center}.footer-links{grid-template-columns:repeat(2,1fr);gap:1rem}.brand-values,.image-list{grid-template-columns:1fr}.photo-layout{grid-template-columns:1fr;height:auto;padding:.75rem}.left-panel{min-height:50vh}.right-panel{height:45vh}.photo-grid{grid-template-columns:repeat(2,1fr)}.page-header{padding:.75rem 1rem}.page-header h1{font-size:1rem}.map-controls{top:.5rem;right:.5rem}.map-control-btn{padding:.375rem .625rem;font-size:.75rem}}@media (max-width: 480px){.hero-title{font-size:1.5rem}.section-title{font-size:1.375rem}.showcase-title,.about-title{font-size:1.25rem}.photo-grid{grid-template-columns:repeat(2,1fr);gap:.375rem}}