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var(--container-padding)}h1,h2,h3,h4,h5,h6{font-weight:var(--font-weight-bold);line-height:var(--line-height-tight);color:var(--color-text);letter-spacing:var(--letter-spacing-tight)}h1{font-size:var(--font-size-5xl);margin-bottom:var(--spacing-lg);font-weight:var(--font-weight-extrabold)}h2{font-size:var(--font-size-4xl);margin-bottom:var(--spacing-md)}h3{font-size:var(--font-size-3xl);margin-bottom:var(--spacing-md)}h4{font-size:var(--font-size-2xl);margin-bottom:var(--spacing-sm)}p{margin-bottom:var(--spacing-sm);line-height:var(--line-height-relaxed);color:var(--color-text-secondary)}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-dark)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);text-decoration:none;border:1px solid transparent;border-radius:var(--radius-lg);cursor:pointer;transition:background-color var(--transition-base),color var(--transition-base),border-color var(--transition-base),box-shadow var(--transition-base),transform var(--transition-fast);white-space:nowrap;gap:var(--spacing-xs);position:relative;overflow:hidden;transform:translateZ(0);-webkit-transform:translateZ(0);backface-visibility:hidden;-webkit-backface-visibility:hidden;min-height:var(--touch-target-min);-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.btn:active{transform:scale(.97)}.btn-primary{background-color:var(--color-primary);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{background-color:var(--color-primary-dark);color:#fff;box-shadow:var(--shadow-lg),var(--shadow-glow);transform:translateY(-2px)}.btn-secondary{background-color:#ffffff1a;color:var(--color-primary);border:1px solid var(--color-border);backdrop-filter:blur(8px)}.btn-secondary:hover{background-color:var(--color-bg-secondary);border-color:var(--color-primary);transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-outline{background-color:transparent;color:var(--color-text);border:1px solid var(--color-border)}.btn-outline:hover{border-color:var(--color-text);background-color:var(--color-bg-secondary)}.btn-dark{background-color:var(--color-dark);color:var(--color-text-inverse)}.btn-dark:hover{background-color:var(--color-gray-800);box-shadow:var(--shadow-lg)}.btn-white{background-color:var(--color-white);color:var(--color-primary);border:1px solid var(--color-white);box-shadow:var(--shadow-md)}.btn-white:hover{background-color:var(--color-gray-100);color:var(--color-primary-dark);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.btn-outline-white{background-color:#ffffff1a;color:var(--color-white);border:1px solid rgba(255,255,255,.8);backdrop-filter:blur(4px)}.btn-outline-white:hover{background-color:var(--color-white);color:var(--color-primary);border-color:var(--color-white);transform:translateY(-2px);box-shadow:var(--shadow-md)}.section{padding:var(--spacing-3xl) 0;position:relative}.section-title{text-align:center;margin-bottom:var(--spacing-sm)}.section-subtitle{text-align:center;color:var(--color-text-secondary);font-size:var(--font-size-lg);margin-bottom:var(--spacing-3xl);max-width:600px;margin-left:auto;margin-right:auto}.card{background-color:var(--color-card-bg);border-radius:var(--radius-xl);padding:var(--spacing-xl);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition-base),transform var(--transition-base),border-color var(--transition-base),background-color var(--transition-base);border:1px solid var(--color-border);position:relative;overflow:hidden;transform:translateZ(0);-webkit-transform:translateZ(0);backface-visibility:hidden;-webkit-backface-visibility:hidden}.card:hover{box-shadow:var(--shadow-xl);transform:translateY(-4px) translateZ(0);border-color:var(--color-primary-light);background-color:var(--color-card-hover)}input,textarea,select{width:100%;padding:var(--spacing-sm);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-bg);color:var(--color-text);font-family:inherit;font-size:var(--font-size-base);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);min-height:var(--touch-target-min);-webkit-appearance:none;appearance:none;font-size:max(16px,var(--font-size-base))}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(var(--color-primary-rgb),.2)}textarea{min-height:120px;resize:vertical}select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23475569' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right var(--spacing-sm) center;padding-right:calc(var(--spacing-lg) + 12px)}.grid{display:grid;gap:var(--spacing-lg)}.grid-2{grid-template-columns:repeat(auto-fit,minmax(min(100%,400px),1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr))}.grid-4{grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.gap-lg{gap:var(--spacing-lg)}.mb-sm{margin-bottom:var(--spacing-sm)}.mb-md{margin-bottom:var(--spacing-md)}.mb-lg{margin-bottom:var(--spacing-lg)}.mb-xl{margin-bottom:var(--spacing-xl)}.mb-2xl{margin-bottom:var(--spacing-2xl)}.mt-sm{margin-top:var(--spacing-sm)}.mt-md{margin-top:var(--spacing-md)}.mt-lg{margin-top:var(--spacing-lg)}.mt-xl{margin-top:var(--spacing-xl)}.mt-2xl{margin-top:var(--spacing-2xl)}.text-center{text-align:center}.text-right{text-align:right}.text-primary{color:var(--color-primary)}.bg-gray{background-color:var(--color-bg-secondary)}.bg-dark{background-color:var(--color-bg-tertiary)}@keyframes fadeInUp{0%{opacity:0;transform:translate3d(0,30px,0)}to{opacity:1;transform:translateZ(0)}}.fade-in-up{animation:fadeInUp var(--transition-slow) cubic-bezier(.2,.8,.2,1) forwards}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.fade-in{animation:fadeIn var(--transition-base) ease-out forwards}@media(max-width:1024px){:root{--font-size-5xl: 2.5rem;--font-size-4xl: 2rem}}@media(max-width:768px){.section{padding:var(--spacing-xl) 0}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}h1{font-size:2.25rem}h2{font-size:1.875rem}}.lazy-loading{background:linear-gradient(90deg,var(--color-bg-secondary) 25%,var(--color-bg) 50%,var(--color-bg-secondary) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.lazy-loaded{animation:fadeInImage .3s ease-out forwards}@keyframes fadeInImage{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}.lazy-error{background:var(--color-bg-secondary);display:flex;align-items:center;justify-content:center}.lazy-error:after{content:"图片加载失败";font-size:var(--font-size-sm);color:var(--color-text-secondary)}.card:hover,.btn:hover,.service-card:hover,.feature-card:hover{will-change:transform,box-shadow}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}.lazy-loading{animation:none;background:var(--color-bg-secondary)}}.section{contain:layout style;isolation:isolate}.section:first-of-type{contain:none}img{max-width:100%;height:auto;display:block;content-visibility:auto}@font-face{font-display:swap}#app{isolation:isolate}html{overscroll-behavior:none}@supports (scroll-behavior: smooth){html{scroll-behavior:smooth}}@supports (-webkit-overflow-scrolling: touch){body{-webkit-overflow-scrolling:touch}}@media(hover:none)and (pointer:coarse){a,button,.btn,[role=button],input[type=submit],input[type=button]{min-height:var(--touch-target-min);-webkit-tap-highlight-color:transparent;touch-action:manipulation}.navbar-link,.footer-links a,.link-item{padding:var(--spacing-sm) var(--spacing-md)}.card:hover,.btn:hover{transform:none}.card:active{transform:scale(.98);box-shadow:var(--shadow-lg)}}@supports (padding: env(safe-area-inset-bottom)){.navbar{padding-left:var(--safe-area-left);padding-right:var(--safe-area-right)}.footer-bottom{padding-bottom:calc(var(--spacing-lg) + var(--safe-area-bottom))}}@media(max-width:768px){body{text-rendering:optimizeLegibility;-webkit-text-size-adjust:100%;text-size-adjust:100%}h1{font-size:clamp(1.75rem,6vw,2.5rem);margin-bottom:var(--spacing-md)}h2{font-size:clamp(1.5rem,5vw,2rem);margin-bottom:var(--spacing-sm)}h3{font-size:clamp(1.25rem,4vw,1.5rem)}h4{font-size:clamp(1.125rem,3.5vw,1.25rem)}p{margin-bottom:var(--spacing-md)}.btn-group,.cta-buttons,.hero-buttons{flex-direction:column;width:100%;gap:var(--spacing-sm)}.btn-group .btn,.cta-buttons .btn,.hero-buttons .btn,.hero-buttons a{width:100%;justify-content:center}.card{padding:var(--spacing-lg)}a{padding:.25em 0}}@media(max-width:375px){.section{padding:var(--spacing-lg) 0}.card{padding:var(--spacing-md)}.btn{padding:var(--spacing-sm) var(--spacing-md);font-size:var(--font-size-sm)}h1{font-size:1.5rem}h2{font-size:1.375rem}}@media(min-width:768px)and (max-width:1024px){.grid-2,.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}.touch-ripple{position:relative;overflow:hidden}.touch-ripple:after{content:"";position:absolute;top:50%;left:50%;width:0;height:0;background:#ffffff4d;border-radius:50%;transform:translate(-50%,-50%);opacity:0}.touch-ripple:active:after{width:200%;padding-bottom:200%;opacity:1;transition:width .4s ease-out,padding-bottom .4s ease-out,opacity .4s ease-out}.scroll-container{-webkit-overflow-scrolling:touch;overflow-y:auto;overscroll-behavior-y:contain}@media(max-width:768px){.hide-scrollbar{scrollbar-width:none;-ms-overflow-style:none}.hide-scrollbar::-webkit-scrollbar{display:none}}@media(max-height:500px)and (orientation:landscape){.section{padding:var(--spacing-md) 0}.navbar-content{height:56px}h1{font-size:1.5rem;margin-bottom:var(--spacing-sm)}h2{font-size:1.25rem}}.app-shell{min-height:100vh;min-height:100svh;min-height:100dvh;display:flex;flex-direction:column}.app-footer{margin-top:auto}