/* ai-kb.css — AI 知识百科公共样式 */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html,body{width:100%;height:100%;overflow:hidden;background:#060618;font-family:-apple-system,"Microsoft YaHei",sans-serif;color:#e0e0e0}
#hud{position:fixed;top:16px;left:16px;z-index:100;background:rgba(6,6,24,.88);border:1px solid rgba(100,200,255,.25);border-radius:14px;padding:14px 18px;backdrop-filter:blur(12px);pointer-events:none}
#hud h2{font-size:17px;font-weight:600;color:var(--accent,#44ccff);margin-bottom:4px}
#hud p{font-size:11px;color:#668;line-height:1.5}
#hud a{color:#44ccff;font-size:12px;pointer-events:all;display:inline-block;margin-top:4px;text-decoration:none}
#legend{position:fixed;bottom:20px;left:16px;z-index:100;display:flex;gap:12px;font-size:10px;flex-wrap:wrap;pointer-events:none}
#legend span{display:flex;align-items:center;gap:5px;background:rgba(6,6,24,.8);padding:4px 10px;border-radius:6px;border:1px solid rgba(255,255,255,.08)}
#legend .dot{width:8px;height:8px;border-radius:50%}
#card{position:fixed;right:16px;top:50%;transform:translateY(-50%);z-index:100;background:rgba(6,6,24,.92);border:1px solid rgba(100,200,255,.3);border-radius:16px;padding:18px;max-width:300px;display:none;backdrop-filter:blur(14px)}
#card h3{font-size:15px;color:var(--accent,#44ccff);margin-bottom:6px}
#card p{font-size:12px;color:#aab;line-height:1.5}
#card button{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);color:#ccc;padding:6px 14px;border-radius:8px;font-size:11px;cursor:pointer;margin-top:8px}
#ad{position:fixed;bottom:50px;right:16px;z-index:200;background:rgba(6,6,24,.85);border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:4px 10px;font-size:10px;color:#666;backdrop-filter:blur(8px);pointer-events:all}
#ad a{color:var(--accent,#44ccff);text-decoration:none}