:root{--color-bg-primary:#000;--color-bg-secondary:#0a0a0a;--color-bg-tertiary:hsla(0,0%,100%,.05);--color-text-primary:#fff;--color-text-secondary:#ccc;--color-text-tertiary:hsla(0,0%,100%,.6);--color-accent:#0ff;--color-accent-dark:#0cc;--color-border:hsla(0,0%,100%,.2);--color-border-light:hsla(0,0%,100%,.1);--font-family-primary:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--font-size-xs:0.12rem;--font-size-sm:0.14rem;--font-size-base:0.16rem;--font-size-lg:0.18rem;--font-size-xl:0.24rem;--font-size-2xl:0.32rem;--font-size-3xl:0.48rem;--font-size-4xl:0.64rem;--font-size-5xl:0.96rem;--line-height-tight:1.2;--line-height-normal:1.5;--line-height-relaxed:1.8;--font-weight-normal:400;--font-weight-medium:500;--font-weight-bold:700;--spacing-xs:0.04rem;--spacing-sm:0.08rem;--spacing-md:0.16rem;--spacing-lg:0.24rem;--spacing-xl:0.32rem;--spacing-2xl:0.48rem;--spacing-3xl:0.64rem;--spacing-4xl:0.96rem;--spacing-5xl:1.28rem;--container-width:19.2rem;--container-padding:2rem;--header-height:0.72rem;--section-padding-vertical:1.28rem;--section-padding-horizontal:2rem;--breakpoint-mobile:768px;--breakpoint-tablet:1024px;--breakpoint-desktop:1920px;--z-index-header:1000;--z-index-overlay:2000;--transition-fast:0.15s ease;--transition-base:0.3s ease;--transition-slow:0.5s ease;--border-radius-sm:0.04rem;--border-radius-md:0.08rem;--border-radius-lg:0.12rem;--mobile-container-padding:0.462rem;--mobile-section-padding-vertical:0.48rem;--mobile-section-padding-horizontal:0.462rem;--mobile-font-size-xs:0.12rem;--mobile-font-size-sm:0.14rem;--mobile-font-size-base:0.16rem;--mobile-font-size-lg:0.18rem;--mobile-font-size-xl:0.2rem;--mobile-font-size-2xl:0.24rem;--mobile-font-size-3xl:0.32rem;--mobile-header-height:0.56rem}*{box-sizing:border-box}html{font-size:100px;scroll-behavior:smooth}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#1a1a1a;color:var(--color-text-primary);font-family:var(--font-family-primary);line-height:var(--line-height-normal);margin:0;padding:0}#ice-container{background-color:transparent;min-height:100vh}