:root{--bg-deep:#070c18;--bg-surface:#0d1526;--bg-card:#ffffff0a;--cyan:#22d3ee;--green:#34d399;--blue:#3b82f6;--gradient:linear-gradient(135deg, #22d3ee 0%, #34d399 100%);--gradient-blue:linear-gradient(135deg, #3b82f6 0%, #22d3ee 100%);--text-primary:#e2e8f0;--text-secondary:#94a3b8;--border-glow:#22d3ee2e}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-deep);color:var(--text-primary);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.6;overflow-x:hidden}.tech-grid{position:relative}.tech-grid:before{content:"";pointer-events:none;background-image:linear-gradient(#22d3ee0d 1px,#0000 1px),linear-gradient(90deg,#22d3ee0d 1px,#0000 1px);background-size:48px 48px;position:absolute;inset:0}.glow-orb{filter:blur(80px);pointer-events:none;opacity:.55;border-radius:50%;position:absolute}.gradient-text{background:var(--gradient);-webkit-text-fill-color:transparent;color:#0000;-webkit-background-clip:text;background-clip:text}.glass-card{background:var(--bg-card);border:1px solid var(--border-glow);-webkit-backdrop-filter:blur(12px);border-radius:20px;transition:all .35s}.glass-card:hover{border-color:#22d3ee80;transform:translateY(-6px);box-shadow:0 12px 48px #22d3ee2e,0 0 0 1px #22d3ee33}.btn-primary{background:var(--gradient);color:#04121a;cursor:pointer;border:none;border-radius:50px;padding:1rem 2.5rem;font-size:1rem;font-weight:700;text-decoration:none;transition:all .3s;display:inline-block;box-shadow:0 8px 28px #22d3ee59}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 40px #22d3ee80}.btn-ghost{color:var(--cyan);cursor:pointer;background:0 0;border:1px solid #22d3ee80;border-radius:50px;padding:1rem 2.5rem;font-size:1rem;font-weight:600;text-decoration:none;transition:all .3s;display:inline-block}.btn-ghost:hover{background:#22d3ee1a;box-shadow:0 0 24px #22d3ee40}.nav-shell{z-index:1000;-webkit-backdrop-filter:blur(16px);background:#070c18bf;border-bottom:1px solid #22d3ee1f;position:fixed;top:0;left:0;right:0}.nav-inner{justify-content:space-between;align-items:center;max-width:1200px;height:68px;margin:0 auto;padding:0 2rem;display:flex}.nav-link{color:var(--text-secondary);font-size:.95rem;font-weight:500;text-decoration:none;transition:color .2s}.nav-link:hover{color:var(--cyan)}.section-title{color:var(--text-primary);text-align:center;margin-bottom:1rem;font-size:2.4rem;font-weight:700}.section-subtitle{color:var(--text-secondary);text-align:center;margin-bottom:4rem;font-size:1.1rem}.card-hover{transition:all .3s}.card-hover:hover{transform:translateY(-4px);box-shadow:0 12px 40px #22d3ee26}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.6s ease-out forwards fadeIn}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}.float{animation:5s ease-in-out infinite float}@keyframes pulse-glow{0%,to{opacity:.45}50%{opacity:.8}}.pulse-glow{animation:4s ease-in-out infinite pulse-glow}.icon-badge{background:var(--gradient);color:#04121a;border-radius:18px;justify-content:center;align-items:center;width:70px;height:70px;margin:0 auto 1.5rem;display:flex;box-shadow:0 8px 24px #22d3ee4d}.tech-tag{color:var(--cyan);background:#22d3ee14;border:1px solid #22d3ee33;border-radius:50px;padding:.4rem 1rem;font-size:.85rem;font-weight:500}.mono{font-family:SF Mono,JetBrains Mono,Consolas,Courier New,monospace}@keyframes typingDot{0%,60%,to{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}.typing-dots span{background:#22d3ee;border-radius:50%;width:6px;height:6px;margin-right:5px;animation:1.2s infinite typingDot;display:inline-block}.typing-dots span:nth-child(2){animation-delay:.2s}.typing-dots span:nth-child(3){animation-delay:.4s}@keyframes cursorBlink{0%,to{opacity:1}50%{opacity:0}}.cursor-blink{color:#34d399;font-weight:300;animation:.8s infinite cursorBlink}