:root{--bg-primary:#0a0e1a;--bg-secondary:#0f1424;--bg-card:rgba(20,28,50,.6);--border-glow:rgba(0,212,255,.3);--text-primary:#e8f0ff;--text-secondary:#8aa0c8;--text-muted:#5a6b8a;--accent-cyan:#00d4ff;--accent-blue:#4d7cff;--accent-purple:#8b5cf6;--accent-pink:#ec4899;--gradient-primary:linear-gradient(135deg,#00d4ff,#4d7cff 50%,#8b5cf6);--gradient-text:linear-gradient(135deg,#00d4ff,#8b5cf6,#ec4899);--shadow-glow:0 0 40px rgba(0,212,255,.15);--shadow-card:0 8px 32px rgba(0,0,0,.3)}*{box-sizing:border-box}*,body,html{margin:0;padding:0}body,html{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg-primary);color:var(--text-primary);scroll-behavior:smooth;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background:radial-gradient(ellipse at top left,rgba(77,124,255,.08) 0,transparent 50%),radial-gradient(ellipse at top right,rgba(139,92,246,.08) 0,transparent 50%),radial-gradient(ellipse at bottom center,rgba(0,212,255,.06) 0,transparent 60%),var(--bg-primary);min-height:100vh}a{color:inherit;text-decoration:none}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--accent-cyan),var(--accent-purple));border-radius:4px}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}.gradient-text{background:var(--gradient-text);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-title{font-size:clamp(2rem,5vw,3rem);font-weight:700;text-align:center;margin-bottom:1rem;letter-spacing:-.02em}.section-subtitle{text-align:center;color:var(--text-secondary);font-size:1.05rem;max-width:640px;margin:0 auto 3.5rem;line-height:1.7}.section-label{display:inline-block;font-size:.85rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--accent-cyan);margin-bottom:1rem;position:relative;padding-left:32px}.section-label:before{content:"";position:absolute;left:0;top:50%;width:24px;height:2px;background:var(--gradient-primary);transform:translateY(-50%)}.glass-card{background:var(--bg-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid hsla(0,0%,100%,.08);border-radius:16px;transition:all .4s cubic-bezier(.4,0,.2,1)}.glass-card:hover{border-color:var(--border-glow);box-shadow:var(--shadow-glow);transform:translateY(-4px)}.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;font-size:1rem;font-weight:600;color:#fff;background:var(--gradient-primary);border:none;border-radius:999px;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden;box-shadow:0 4px 20px rgba(0,212,255,.3)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(0,212,255,.45)}.btn-primary:after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,hsla(0,0%,100%,.3),transparent);transition:left .6s ease}.btn-primary:hover:after{left:100%}.btn-outline{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;font-size:1rem;font-weight:600;color:var(--accent-cyan);background:transparent;border:1.5px solid var(--accent-cyan);border-radius:999px;cursor:pointer;transition:all .3s ease}.btn-outline:hover{background:rgba(0,212,255,.1);box-shadow:0 0 20px rgba(0,212,255,.2)}.fade-in-up{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s ease}.fade-in-up.visible{opacity:1;transform:translateY(0)}.grid-bg{background-image:linear-gradient(rgba(0,212,255,.04) 1px,transparent 0),linear-gradient(90deg,rgba(0,212,255,.04) 1px,transparent 0);background-size:50px 50px}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes pulse-glow{0%,to{box-shadow:0 0 20px rgba(0,212,255,.3)}50%{box-shadow:0 0 40px rgba(0,212,255,.6)}}@keyframes spin-slow{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@media (max-width:768px){.section-title{font-size:2rem}}