.assistant-copy-hint { color:var(--muted); font-size:14px; line-height:1.9; }
.assistant-term { display:inline-flex; align-items:center; white-space:nowrap; gap:2px; }
.assistant-help-button { display:inline-flex; align-items:center; justify-content:center; flex:none; width:30px; height:32px; padding:0; border:0; border-radius:6px; background:transparent; color:var(--blue-dark); font:inherit; vertical-align:middle; }
.assistant-help-button::before { content:'?'; display:flex; align-items:center; justify-content:center; width:16px; height:16px; border:1px solid currentColor; border-radius:50%; font-size:11px; line-height:1; }
.assistant-help-button:hover,.assistant-help-button[aria-expanded="true"] { background:var(--soft-blue); }
.assistant-tooltip { position:fixed; inset:auto; z-index:100; width:min(310px,calc(100vw - 32px)); margin:0; padding:18px 20px; border:1px solid var(--line); border-radius:12px; background:#fff; color:var(--ink); box-shadow:0 12px 40px #192b4826; font:13px/1.8 "Microsoft YaHei","PingFang SC",sans-serif; text-align:left; }
.assistant-tooltip strong { display:block; margin-bottom:8px; font-size:14px; }
.assistant-tooltip p { margin:0 0 8px; color:var(--muted); font-size:13px; line-height:1.8; }
.assistant-tooltip small { display:block; color:var(--muted); font-size:11px; line-height:1.7; }