:root{--bg:#080a18;--panel:rgba(18,22,45,.72);--line:rgba(159,153,255,.16);--text:#f6f4ff;--muted:#a5a8c5;--violet:#7568ff;--cyan:#66d9ef}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);background:radial-gradient(circle at 70% 0,rgba(75,53,255,.2),transparent 32%),var(--bg);font-family:Inter,"Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}.site-header{position:fixed;z-index:20;top:0;left:0;right:0;height:72px;padding:0 clamp(20px,5vw,72px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:rgba(8,10,24,.62);backdrop-filter:blur(22px)}.brand{display:flex;align-items:center;gap:10px}.brand img{width:34px;height:34px;object-fit:contain}.brand span{display:flex;flex-direction:column;gap:2px}.brand strong{font-size:15px}.brand small{color:var(--violet);font-size:8px;letter-spacing:2px}nav{display:flex;gap:28px;color:var(--muted);font-size:13px}nav 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rgba(102,217,239,.15);font-size:13px}.node-a{left:13%;top:35%}.node-b{right:14%;top:25%;background:rgba(117,104,255,.36);border-color:rgba(154,141,255,.6)}.node-c{left:40%;bottom:18%;background:rgba(81,214,154,.22);border-color:rgba(81,214,154,.5)}.core-art{filter:drop-shadow(0 0 45px rgba(117,104,255,.38))}.core-art img{width:min(280px,60%);position:relative;z-index:2}.core-orbit{position:absolute;width:360px;height:160px;border:1px solid rgba(102,217,239,.35);border-radius:50%;transform:rotate(-20deg)}.orbit-b{width:260px;height:360px;border-color:rgba(154,141,255,.32);transform:rotate(32deg)}.carousel-controls{position:absolute;left:clamp(24px,9vw,140px);bottom:50px;display:flex;align-items:center;gap:10px;color:var(--muted);font-size:11px}.carousel-dot{width:30px;height:4px;border:0;border-radius:4px;background:rgba(255,255,255,.2);cursor:pointer}.carousel-dot.active{background:var(--cyan)}section:not(.hero-carousel){padding:110px 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