/* 特殊符号大全 */
.sym-group { margin-bottom: 14px; }
.sym-group h3 { font-size: 14px; color: var(--muted, #8a92a6); margin: 6px 0; }
.sym-grid { display: flex; flex-wrap: wrap; gap: 6px; }
.sym-btn {
  min-width: 40px; height: 40px; padding: 0 10px;
  border: 1px solid var(--line, #e6e8ef); border-radius: 8px;
  background: var(--bg-elev, #fff); color: var(--text, #1a1f2e);
  font-size: 18px; cursor: pointer; transition: .15s;
}
.sym-btn:hover { border-color: var(--accent, #2f6df0); color: var(--accent, #2f6df0); transform: translateY(-1px); }