:root{--bg-primary: #FAFAFA;--bg-secondary: #F0F0F3;--bg-card: #FFFFFF;--bg-card-hover: #F5F5F8;--accent: #E07800;--accent-glow: #FF8C00;--accent-dim: #CC6600;--accent-ghost: rgba(255, 140, 0, .08);--text-primary: #1A1A1E;--text-secondary: #6B6B75;--text-muted: #9B9BA5;--border: #E0E0E5;--border-glow: rgba(255, 140, 0, .3);--font-body: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;--font-mono: "Space Mono", "JetBrains Mono", "IBM Plex Mono", monospace;--max-width: 1700px;--nav-height: 64px;--glow-sm: 0 0 8px rgba(255, 140, 0, .2);--glow-md: 0 0 20px rgba(255, 140, 0, .25);--glow-lg: 0 0 32px rgba(255, 140, 0, .35);--glow-text: 0 0 8px rgba(255, 140, 0, .35)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}body{min-height:100vh;background-color:var(--bg-primary)}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;background:none;font-family:inherit;color:inherit}ul,ol{list-style:none}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 40px}.section{padding:100px 0}.section-label{font-family:var(--font-mono);font-size:12px;letter-spacing:.15em;color:var(--accent);text-transform:uppercase;margin-bottom:12px}.section-title{font-size:40px;font-weight:700;letter-spacing:.02em;color:var(--text-primary);margin-bottom:16px}.section-desc{font-size:16px;color:var(--text-secondary);max-width:560px;line-height:1.8}@keyframes neon-pulse{0%,to{text-shadow:0 0 7px rgba(255,140,0,.5),0 0 20px rgba(255,140,0,.3),0 0 40px rgba(255,140,0,.15)}50%{text-shadow:0 0 12px rgba(255,176,0,.8),0 0 30px rgba(255,176,0,.5),0 0 60px rgba(255,176,0,.25)}}@keyframes neon-flicker-in{0%{opacity:0;box-shadow:0 0 #ff8c0000}30%{opacity:.5;box-shadow:0 0 30px #ff8c0099}40%{opacity:.3;box-shadow:0 0 10px #ff8c0033}60%{opacity:.9;box-shadow:0 0 25px #ff8c0080}to{opacity:1;box-shadow:0 0 15px #ff8c004d}}@keyframes fade-up{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:#d0d0d5;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--accent-dim)}::selection{background:#ff8c0033;color:#1a1a1e}.btn-bubbles{position:relative;overflow:visible}.btn-bubbles:before,.btn-bubbles:after{position:absolute;content:"";width:150%;left:50%;height:100%;transform:translate(-50%);background-repeat:no-repeat;pointer-events:none}.btn-bubbles:hover:before{top:-70%;background-image:radial-gradient(circle,var(--accent) 20%,transparent 20%),radial-gradient(circle,transparent 20%,var(--accent) 20%,transparent 30%),radial-gradient(circle,var(--accent) 20%,transparent 20%),radial-gradient(circle,var(--accent) 20%,transparent 20%),radial-gradient(circle,transparent 10%,var(--accent) 15%,transparent 20%),radial-gradient(circle,var(--accent) 20%,transparent 20%),radial-gradient(circle,var(--accent) 20%,transparent 20%),radial-gradient(circle,var(--accent) 20%,transparent 20%),radial-gradient(circle,var(--accent) 20%,transparent 20%);background-size:10% 10%,20% 20%,15% 15%,20% 20%,18% 18%,10% 10%,15% 15%,10% 10%,18% 18%;background-position:50% 120%;animation:bubbleTop .6s ease}.btn-bubbles:hover:after{bottom:-70%;background-image:radial-gradient(circle,var(--accent) 20%,transparent 20%),radial-gradient(circle,var(--accent) 20%,transparent 20%),radial-gradient(circle,transparent 10%,var(--accent) 15%,transparent 20%),radial-gradient(circle,var(--accent) 20%,transparent 20%),radial-gradient(circle,var(--accent) 20%,transparent 20%),radial-gradient(circle,var(--accent) 20%,transparent 20%),radial-gradient(circle,var(--accent) 20%,transparent 20%);background-size:15% 15%,20% 20%,18% 18%,20% 20%,15% 15%,20% 20%,18% 18%;background-position:50% 0%;animation:bubbleBottom .6s ease}.btn-bubbles:active{transform:scale(.96)}@keyframes bubbleTop{0%{background-position:5% 90%,10% 90%,10% 90%,15% 90%,25% 90%,25% 90%,40% 90%,55% 90%,70% 90%}50%{background-position:0% 80%,0% 20%,10% 40%,20% 0%,30% 30%,22% 50%,50% 50%,65% 20%,90% 30%}to{background-position:0% 70%,0% 10%,10% 30%,20% -10%,30% 20%,22% 40%,50% 40%,65% 10%,90% 20%;background-size:0% 0%,0% 0%,0% 0%,0% 0%,0% 0%,0% 0%}}@keyframes bubbleBottom{0%{background-position:10% -10%,30% 10%,55% -10%,70% -10%,85% -10%,70% -10%,70% 0%}50%{background-position:0% 80%,20% 80%,45% 60%,60% 100%,75% 70%,95% 60%,105% 0%}to{background-position:0% 90%,20% 90%,45% 70%,60% 110%,75% 80%,95% 70%,110% 10%;background-size:0% 0%,0% 0%,0% 0%,0% 0%,0% 0%,0% 0%}}