:root{--color-primary:#ff4f5a;--color-secondary:#4A8B4A;--color-accent:#FFD700;--color-dark-bg:#0E0E15;--color-dark-card:#0E0E15;--color-dark-surface:#191925;--color-dark-border:#242432;--color-light-bg:#FFFFFF;--color-light-card:#FFFFFF;--color-light-surface:#F3F4F6;--color-light-border:#D1D5DB;--color-text-primary:#FFFFFF;--color-text-secondary:#A0A0A0;--color-text-muted:#666666;--color-text-gray-300:#D1D5DB;--color-text-gray-400:#9CA3AF;--color-text-hero-sub:#4C607E;--color-text-hero-desc:#8C94A2;--color-primary-light:#2563EB;--color-secondary-light:#06B6D4;--gradient-primary:linear-gradient(135deg,#ff4f5a,#fdb813);--gradient-light:linear-gradient(135deg,#2563EB,#06B6D4);--gradient-hero:linear-gradient(135deg,#000000,#141414 50%,#222222);--font-family-sans:"Inter","system-ui","sans-serif";--font-family-display:"Montserrat","sans-serif";--font-family-chinese:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--font-size-xs:0.75rem;--font-size-sm:0.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:1.25rem;--font-size-2xl:1.5rem;--font-size-3xl:1.875rem;--font-size-4xl:2.25rem;--font-size-hero:clamp(2.5rem,5vw,4rem);--font-size-section:clamp(2rem,4vw,3rem);--font-size-subtitle:clamp(1.2rem,2vw,1.5rem);--font-weight-light:300;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--font-weight-black:900;--line-height-tight:1.25;--line-height-normal:1.5;--line-height-relaxed:1.75;--spacing-1:0.25rem;--spacing-2:0.5rem;--spacing-3:0.75rem;--spacing-4:1rem;--spacing-5:1.25rem;--spacing-6:1.5rem;--spacing-8:2rem;--spacing-10:2.5rem;--spacing-12:3rem;--spacing-16:4rem;--spacing-20:5rem;--spacing-24:6rem;--spacing-32:8rem;--border-radius-sm:0.375rem;--border-radius-md:0.5rem;--border-radius-lg:0.75rem;--border-radius-xl:1rem;--border-radius-2xl:1.5rem;--border-radius-full:9999px;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 6px rgba(0,0,0,0.1),0 2px 4px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px rgba(0,0,0,0.1),0 4px 6px rgba(0,0,0,0.05);--shadow-xl:0 20px 25px rgba(0,0,0,0.1),0 10px 10px rgba(0,0,0,0.04);--shadow-2xl:0 25px 50px rgba(0,0,0,0.25);--neon-glow-primary:0 0 5px var(--color-primary),0 0 10px color-mix(in srgb,var(--color-primary) 50%,transparent);--neon-glow-blue:0 0 5px #2563EB,0 0 10px color-mix(in srgb,#2563EB 50%,transparent);--neon-glow-blue-light:0 0 3px #60A5FA,0 0 8px color-mix(in srgb,#60A5FA 30%,transparent);--neon-glow-secondary:0 0 5px var(--color-secondary),0 0 10px color-mix(in srgb,var(--color-secondary) 50%,transparent);--transition-duration-150:150ms;--transition-duration-300:300ms;--transition-duration-500:500ms;--transition-duration-700:700ms;--transition-duration-1000:1000ms;--transition-timing-ease-in-out:cubic-bezier(0.4,0,0.2,1);--transition-timing-in-out:cubic-bezier(0.4,0,0.2,1);--transition-timing-out:cubic-bezier(0,0,0.2,1);--transition-timing-in:cubic-bezier(0.4,0,1,1);--transition-all:all var(--transition-duration-300) var(--transition-timing-ease-in-out);--transition-colors:color var(--transition-duration-300) var(--transition-timing-ease-in-out),background-color var(--transition-duration-300) var(--transition-timing-ease-in-out),border-color var(--transition-duration-300) var(--transition-timing-ease-in-out);--transition-transform:transform var(--transition-duration-300) var(--transition-timing-ease-in-out);--transition-opacity:opacity var(--transition-duration-300) var(--transition-timing-ease-in-out);--transition-shadow:box-shadow var(--transition-duration-300) var(--transition-timing-ease-in-out);--float-translate-y:-10px;--float-duration:6s;--float-slow-duration:20s;--pulse-slow-duration:4s;--glow-duration:2s;--shine-duration:2s;--z-index-background:0;--z-index-content:10;--z-index-header:50;--z-index-dropdown:1000;--z-index-modal:1400;--z-index-tooltip:1800;--header-height:4rem;--container-max-width:1280px;--breakpoint-sm:640px;--breakpoint-md:768px;--breakpoint-lg:1024px;--breakpoint-xl:1280px;--bg-grid-size:40px;--bg-grid-dark:linear-gradient(90deg,rgba(255,255,255,0.025) 1px,transparent 0),linear-gradient(180deg,rgba(255,255,255,0.025) 1px,transparent 0);--bg-grid-light:linear-gradient(90deg,rgba(0,0,0,0.03) 1px,transparent 0),linear-gradient(180deg,rgba(0,0,0,0.03) 1px,transparent 0);--particle-opacity:0.3;--particle-count-mobile:30;--particle-count-desktop:60;--card-padding:var(--spacing-3);--card-border-radius:var(--border-radius-xl);--card-transition:var(--transition-all);--button-padding-x:var(--spacing-8);--button-padding-y:var(--spacing-3);--button-border-radius:var(--border-radius-lg);--button-font-weight:var(--font-weight-medium);--button-transition:var(--transition-all);--title-decoration-width:4rem;--title-decoration-height:2px;--title-decoration-border-radius:1px;--title-decoration-margin:0 0 0 0;--backdrop-blur-xl:blur(24px)}.theme-light,:root[data-theme=light]{--current-bg:var(--color-light-bg);--current-card:var(--color-light-card);--current-surface:var(--color-light-surface);--current-border:var(--color-light-border);--current-text-primary:#111827;--current-text-secondary:#4B5563;--current-text-muted:#9CA3AF;--current-grid:var(--bg-grid-light);--current-neon:var(--neon-glow-blue-light);--current-gradient:var(--gradient-light)}.theme-dark,:root,:root[data-theme=dark]{--current-bg:var(--color-dark-bg);--current-card:var(--color-dark-card);--current-surface:var(--color-dark-surface);--current-border:var(--color-dark-border);--current-text-primary:var(--color-text-primary);--current-text-secondary:var(--color-text-secondary);--current-text-muted:var(--color-text-muted);--current-grid:var(--bg-grid-dark);--current-neon:var(--neon-glow-primary);--current-gradient:var(--gradient-primary)}@keyframes float{0%,to{transform:translateY(0) translateX(0)}25%{transform:translateY(-8px) translateX(5px)}50%{transform:translateY(-12px) translateX(-3px)}75%{transform:translateY(-6px) translateX(4px)}}@keyframes float-slow{0%{transform:translate(0) scale(1) rotate(0deg)}15%{transform:translate(20px,-15px) scale(1.03) rotate(2deg)}30%{transform:translate(10px,20px) scale(.98) rotate(-1deg)}45%{transform:translate(-15px,10px) scale(1.01) rotate(1deg)}60%{transform:translate(-10px,-25px) scale(.99) rotate(-2deg)}75%{transform:translate(25px,15px) scale(1.02) rotate(1.5deg)}to{transform:translate(0) scale(1) rotate(0deg)}}@keyframes glow{0%{box-shadow:0 0 5px rgba(255,58,58,.5)}50%{box-shadow:0 0 25px rgba(255,58,58,.9),0 0 40px rgba(255,58,58,.6)}to{box-shadow:0 0 5px rgba(255,58,58,.5)}}@keyframes shine{0%{transform:translateX(-100%) skewX(-15deg);opacity:.3}50%{opacity:.6}to{transform:translateX(100%) skewX(-15deg);opacity:.3}}@keyframes pulse-slow{0%,to{opacity:.8;transform:scale(1)}50%{opacity:1;transform:scale(1.02)}}@keyframes particle-float{0%{transform:translate(0) scale(1);opacity:.3}25%{transform:translate(5px,-10px) scale(1.1);opacity:.6}50%{transform:translate(10px,-5px) scale(.9);opacity:.8}75%{transform:translate(5px,10px) scale(1.05);opacity:.5}to{transform:translate(0) scale(1);opacity:.3}}@keyframes titleDecorationExpand{0%{width:0;opacity:0}to{width:var(--title-decoration-width);opacity:1}}@media (max-width:768px){:root{--font-size-hero:2.5rem;--font-size-section:2rem;--font-size-subtitle:1.2rem;--spacing-container:var(--spacing-4)}}@media (max-width:475px){:root{--font-size-hero:2rem;--font-size-section:1.75rem;--font-size-subtitle:1rem;--spacing-container:var(--spacing-3)}}